JP5827546B2 - Pachinko machine - Google Patents

Description

  The present invention relates to a pachinko machine (pachinko game machine).

  Recent mainstream pachinko machines have a probability variation function (probability variation function) in which the winning probability (hit probability) in the big hit lottery varies.

  In a pachinko machine having this probability changing function, for example, a big hit lottery and a big hit type lottery are performed in response to a winning of a game ball at the start opening. If the jackpot lottery result is a jackpot, a jackpot game is executed. In the big hit game, the big prize opening is opened and closed in a predetermined manner. For the winning of game balls to the big winning opening, a predetermined number of prize balls are paid out for each winning. Therefore, in the big hit game, the player can acquire a large number of prize balls. After the big hit game is over, depending on the result of the big hit type lottery, the normal mode or the probability change mode is entered. In other words, if the result of the big hit type lottery is a normal big hit, it will enter the normal mode with a relatively low big hit probability, and if the result of the big hit type lottery is a probable big hit, it will enter the probability change mode with a relatively high big hit probability. To do.

  The results of the big hit lottery and the big hit type lottery are notified by the type of special symbol displayed on the special symbol display device (and the type of effect symbol displayed on the effect symbol display device) prior to the start of the big hit game. Therefore, if the player sees the special symbol type displayed on the special symbol display device immediately before the start of the big hit game, the player determines whether the result of the big hit type lottery is a normal big hit or a probable variable big hit, that is, whether or not the probable variable mode has been entered. can do.

JP 2008-295667 A

  However, since it is possible to determine whether or not the probability variation mode has been entered before the start of the big hit game, the interest of the game may be impaired. For example, when the result of the big hit type lottery is a normal big hit, the player who recognizes the risk may lower the motivation for the game before the start of the big hit game.

  Also, with conventional pachinko machines, there is no room for reflecting the skill of the player in determining whether to enter the probability variation mode.

  The object of the present invention is to prevent the player's motivation for the game from falling before the start of the big hit game, and to reflect the player's skill in determining whether to enter the probability change mode. It is to provide a pachinko machine.

  In order to achieve the above object, a pachinko machine according to the present invention includes a start opening, a large winning opening, a round continuation zone provided in the large winning opening, and a probability change transition zone provided in the large winning opening. , A big hit lottery execution means for executing a big hit lottery in response to a winning of a game ball at the start opening, and an operation in which the big win opening is opened for a predetermined period with respect to the big hit in the big hit lottery as one round , A jackpot game execution means for executing a jackpot game in which the operation is repeated up to the maximum round, and a next round permission means for permitting the next round operation in the jackpot game on condition that the game ball enters the round continuation zone If there is a game ball entering the probability transition zone during the jackpot game, the jackpot lottery comes out after the jackpot game ends. If a probability change mode with a relatively high rate is set and there is no game ball entering the probability change transition zone during the jackpot game, the probability of winning a jackpot in the jackpot lottery after the jackpot game ends A probability variation / normal mode setting means for setting a normal mode with a relatively low probability, and a probability variation transition probability for improving the probability that a game ball will enter the probability variation transition zone on condition that a predetermined round is reached in the jackpot game Improvement means.

  In this pachinko machine, a big hit lottery is performed in response to the winning of a game ball at the start opening. When a big hit comes out in the big hit lottery, a big hit game is executed. In the big hit game, the operation in which the big prize opening is opened for a predetermined period is defined as one round, and the operation is repeated up to the maximum round.

  A round continuation zone is set up at the big prize opening. When the grand prize opening is opened and a game ball enters the round continuation zone, the operation of the next round is permitted. In this case, after the big prize opening is closed, the next round is entered and the big prize opening is opened again.

  In addition, a probable transition zone is provided at the special winning opening. When the big winning opening is opened and a game ball enters the probability changing zone, a probability changing mode is set that has a relatively high probability of making a big hit in the big hit lottery after the big hit game is finished. On the other hand, when the big hit game ends without the game ball entering the probability variation transition zone, the normal mode is set with a relatively low probability of winning a big hit in the big hit lottery.

  Therefore, at the start of the big hit game, it is unclear whether the probability change mode or the normal mode will be entered after the big hit game ends. Therefore, the player can enjoy the big hit game while expecting the probability change mode entry (setting). Therefore, it is possible to prevent the player's motivation for the game from decreasing before the start of the big hit game.

  In the big hit game, when a predetermined round is reached, the probability that the game ball enters the probability transition zone increases.

  In order to reach the predetermined round, it is necessary to make the game ball enter the round continuation zone in the big winning opening in each round up to the round immediately before the predetermined round. Therefore, the player's skill is reflected in determining whether or not to enter the probability variation mode. As a result, it is possible to create an amusing game.

  Then, until the predetermined round is reached, the player can feel a thrill of whether or not the big hit game (round) continues until the predetermined round (whether the so-called puncture does not end), as the player approaches the predetermined round. In addition, the player's expectation for the decision to enter the probability change mode can be increased. Even after the predetermined round is reached and the probability variation mode entry is determined, it is possible to give the player a throbbing feeling as to whether or not the big hit game continues until the final round (maximum round). Therefore, during the big hit game, a thrilling feeling can be given to the player all the time, and the player can be excited.

  The result of the jackpot lottery is usually notified by displaying a special symbol representing the result of the jackpot lottery on the special figure display device. A predetermined round may be determined in association with a jackpot symbol which is a special symbol indicating that the jackpot lottery result is a jackpot.

  Moreover, there are a plurality of types of jackpot symbols, and a predetermined round may be determined in association with each jackpot symbol.

  The big prize opening may include a first big prize opening and a second big prize opening.

  In this case, for example, a round continuation zone is provided at the first grand prize opening, and a probability change transition zone is provided at the second big prize opening. Then, in each round up to one round before the predetermined round, the first big prize opening may be opened, and in the predetermined round, the second big prize opening may be opened.

  The probability that a game ball enters the probability change zone can be increased by opening the second grand prize opening in a predetermined round.

  The probability variation zone may be provided not only at the second grand prize opening, but also at the first big prize opening. In this case, in the first grand prize opening and the second big prize opening, the game ball entering the probability change transition zone of the first grand prize opening is more than the game ball entering the probability change transition zone of the second grand prize opening. Are preferably designed to be difficult.

  As a result, in the specification in which the first grand prize opening is opened in each round up to one round before the predetermined round and the second big prize opening is opened in the predetermined round, the first grand prize opening is opened. While the game continues, there is a possibility that a game ball enters the probability change zone of the first big winning opening and the entry into the probability change mode after the big hit game may be confirmed. However, since the possibility is not high, while giving the player some expectation in the decision of entering the probability change mode by entering the game ball into the probability change zone of the first big prize opening, in a predetermined round It is possible to give a great sense of expectation to the opening of the second big prize opening. Therefore, it is possible to create a more entertaining game.

  In a big hit game, each round from one or more previous rounds to the previous round is a short open round, and rounds other than the short open round are long open rounds. The opening time of the first big prize opening in the round may be set to a relatively short time, and the opening time of the first big winning opening in the long open round may be set to a relatively long time.

  In the short-time open round before reaching the predetermined round, the first big prize opening is opened only for a short time, so that the risk of so-called puncture end is increased and a great pounding feeling can be given to the player. Then, if the round is completed for a short time, the predetermined round arrives, so that the player can be given a sense of expectation for entering the probability change mode by turning away from the great pounding feeling with respect to the end of the puncture. As a result, the player's emotion can be greatly changed, and the player can be more excited.

  The round continuation zone may be provided not only at the first grand prize opening but also at the second big prize opening.

  In this case, in the big hit game, the first big prize opening is opened in each round from the first round to the previous round of the predetermined round, and the second big prize opening is opened in each round after the predetermined round. May be.

  Moreover, only one big winning opening may be provided.

  In this case, in the big winning opening, the position is changed between a difficult posture in which it is relatively difficult to enter the game ball into the probability change transition zone and an easy posture in which it is relatively easy to enter the game ball into the probability change transition zone. In the jackpot game, the probability variation movable member is displaced to a difficult posture in each round from the first round to the previous round of the predetermined round, and in the predetermined round, the probability variation movable member is provided. It is preferable to be displaced to an easy posture.

  When the probability variation movable member is displaced to the easy posture in a predetermined round, the probability that the game ball enters the probability variation transition zone can be increased.

  Even in a round in which the probability variation movable member has a difficult posture, there is a possibility that a game ball enters the probability variation transition zone and the entry into the probability variation mode after the big hit game is confirmed. However, since the possibility is not high, the player has some expectation in determining the probability change mode entry by entering the game ball into the probability change transition zone when the probability change movable member is in a difficult posture. Therefore, it is possible to give a great expectation that the probability-changing movable member is displaced to the easy posture in a predetermined round. As a result, it is possible to create a more entertaining game.

  In addition, in the big winning opening, it is possible to displace the posture that makes it relatively difficult to enter the game ball into the round continuation zone and the posture that makes it relatively easy to enter the game ball into the round continuation zone. A continuous movable member may be further provided.

  By providing the continuous movable member, it is possible to change the entrance rate of game balls to the round continuous zone.

  In a big hit game, each round from one or more previous rounds to the previous round is a short open round, and rounds other than the short open round are long open rounds. The opening time of the big prize opening in the round may be set to a relatively short time, and the opening time of the big prize opening in the long open round may be set to a relatively long time.

  In the short opening round before reaching the predetermined round, the big prize opening is opened only for a short time, so that the risk of so-called puncture end is increased, and a great throbbing feeling can be given to the player. Then, if the round is completed for a short time, the predetermined round arrives, so that the player can be given a sense of expectation for entering the probability change mode by turning away from the great pounding feeling with respect to the end of the puncture. As a result, the player's emotion can be greatly changed, and the player can be more excited.

  The pachinko machine may be provided with a jackpot game start gate through which a game ball can pass, and the jackpot game may be started in response to the game ball passing through the jackpot game start gate.

  According to this configuration, the big hit game is not started until the game ball passes through the big hit game start gate. Therefore, if the number of possession balls (game balls that can be used for games) is small at the time of a big hit lottery, a sufficient number of possession balls will be secured by borrowing additional game balls. The big hit game can be started. As a result, it is possible to prevent the big hit game from being started when the ball is out of play. Therefore, even if the first round of the big hit game is a predetermined round, it is possible to avoid the occurrence of a situation in which the game ball cannot enter the probability transition zone due to the ball running out.

  The start port may include a first start port and a second start port. In this case, the pachinko machine has an opening / closing device displaceable between an open posture for guiding the winning of the game ball to the second starting port and a closed posture for preventing the winning of the game ball to the second starting port, and a big hit game When there is a game ball entering the probability change transition zone, the opening / closing device is configured in such a manner that the game ball can be won relatively easily at the second starting port for a predetermined short time period after the end of the big hit game. The time reduction mode in which the opening / closing device operates is set in a mode in which it is relatively difficult to win the game ball in the second starting port during the non-time reduction period other than the time reduction period. Non-time reduction mode setting means may be provided.

  As a result, when a game ball enters the probability change transition zone during the big hit game, the probability change mode and the time reduction mode are set after the big hit game ends. Since a prize ball is awarded for winning a game ball at the second starting port, the time reduction mode is set, so that the player can enjoy the game in the probability change mode without greatly reducing the number of possessions. be able to.

  Further, it is preferable to notify which round the predetermined round is by displaying a message on the effect display device.

  By recognizing which round the predetermined round is, the player can have a strong willingness to continue the round until the predetermined round is reached.

  The notification of which round the predetermined round is may be performed at the start of the jackpot game, or may be performed in the middle of the jackpot game.

  For example, at the start of the big hit game, a round different from the actual predetermined round may be notified as a predetermined round (false notification), and the actual predetermined round may be notified in the middle of the big hit game.

  By re-notifying that the round different from the originally announced round is the predetermined round, the player can be surprised and the interest can be further increased.

  ADVANTAGE OF THE INVENTION According to this invention, it can prevent that the motivation with respect to a player's game falls before the start of a big hit game. Further, it is possible to reflect the skill of the player in determining whether or not to enter the probability change mode. As a result, it is possible to create an amusing game.

FIG. 1 is a front view of a game board provided in a pachinko machine according to an embodiment of the present invention. FIG. 2 is a plan view schematically showing the configuration of the first big prize opening shown in FIG. FIG. 3 is a plan view schematically showing the configuration in the second big prize opening shown in FIG. FIG. 4 is a block diagram showing an electrical configuration of the pachinko machine shown in FIG. FIG. 5 is a diagram showing a function processing unit substantially included in the main control unit shown in FIG. FIG. 6 is a flowchart showing the flow of processing executed by the first special figure random number acquisition unit shown in FIG. FIG. 7 is a flowchart showing a flow of processing executed by the second special figure random number acquisition unit shown in FIG. FIG. 8 is a flowchart showing a flow of processing executed by the common random number acquisition unit shown in FIG. FIG. 9 is a flowchart showing the flow of processing executed by the special figure random number determination unit shown in FIG. FIG. 10 is a flowchart showing a flow of processing executed by the common random number determination unit shown in FIG. FIG. 11 is a setting table (for first special drawing lottery) used for setting the opening patterns of the first grand prize winning opening and the second big winning prize opening. FIG. 12 is a setting table (for the second special drawing lottery) used for setting the opening patterns of the first grand prize winning opening and the second big winning prize opening. FIG. 13 is a flowchart showing a flow of processing executed by the next round permission unit. FIG. 14 is a flowchart showing a flow of processing executed by the probability changing / normal mode setting unit. FIG. 15 is a table showing the round continuation rate of the jackpot game and the expected change entry probability in each round. FIG. 16 is another example (Modification 1) of a setting table used for setting the opening patterns of the first grand prize winning opening and the second big winning prize opening. FIG. 17 shows still another example (Modification 2) of the setting table used for setting the opening patterns of the first grand prize winning opening and the second big winning prize opening. 18 is a diagram illustrating another example of the function processing unit substantially included in the main control unit illustrated in FIG. FIG. 19 is a setting table used for setting the opening pattern of the first grand prize opening and the second big prize opening and the opening time of the first big prize opening. FIG. 20 is a front view of a game board provided in the pachinko machine according to the second embodiment of the present invention. FIG. 21A is a front view schematically showing the configuration within the special winning opening shown in FIG. 20 (a state in which the probability variation movable member assumes a difficult posture). FIG. 21B is a front view schematically showing the configuration within the special winning opening shown in FIG. 20 (the state in which the probability variation movable member assumes an easy posture). FIG. 22 is a block diagram showing an electrical configuration of the pachinko machine shown in FIG. FIG. 23 is a diagram showing a function processing unit substantially included in the main control unit shown in FIG. FIG. 24 is a setting table (for first special drawing lottery) used for setting the posture pattern of the probability-changing movable member shown in FIGS. 21A and 21B. FIG. 24 is a setting table (for the second special drawing lottery) used for setting the posture pattern of the probability-changing movable member shown in FIGS. 21A and 21B. FIG. 26A is a front view schematically illustrating another configuration (a state in which the continuously movable member and the probability variation movable member are in an allowable posture) in the special winning opening. FIG. 26B is a front view schematically illustrating another configuration (a state in which the continuously movable member has an allowable posture and the probability-variable movable member has a blocking posture) in the special winning opening. FIG. 26C is a front view schematically illustrating another configuration (a state in which both the continuously movable member and the probability variation movable member are in a blocking posture) in the special winning opening.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
<Board configuration>

  FIG. 1 is a front view of a game board provided in a pachinko machine according to an embodiment of the present invention.

  A game board 2 is arranged at the upper front of the pachinko machine 1. In addition, a handle (not shown) that can be rotated within a predetermined angle range is disposed on the lower right portion of the front surface of the pachinko machine 1, and a game ball is directed from the inside of the machine toward the game board 2 by operating the handle. Fired. The momentum of the game ball can be adjusted by the rotation angle of the handle.

  A game ball launched toward the inside of the game board 2 is guided to an upper part in the game board 2. A large number of obstacle nails (not shown) are struck in the game board 2, and the game balls fall through the game board 2 between the obstacle nails. The game ball that has dropped to the bottom of the game board 2 is collected into the machine from the out port 3 formed at the bottom.

  A center unit 4 is disposed at a substantially central portion in the game board 2. The center unit 4 is provided with an effect display device 5 composed of a color liquid crystal display, for example. The effect display device 5 displays an effect image for exciting the game, a navigation message for navigating the operation of the handle, and the like.

  A first start port 6 is disposed below the center unit 4.

  When one game ball enters the first start port 6, a predetermined number of prize balls are paid out, and a first special drawing lottery is performed to determine whether or not to execute a big hit game. The result of the first special figure lottery is notified using, for example, the first special figure display device 7 arranged in the lower right part of the game board 2. In other words, the first special symbol display device 7 is arranged in the lower right part of the game board 2, and the symbols displayed on the first special symbol display device 7 are changed through the symbol variation in the first special symbol display device 7. After changing one after another, the first special symbol representing the result of the first special figure lottery is stopped and displayed on the first special figure display device 7.

  A second start port 8 is disposed on the right side of the center unit 4.

  An electric tulip (hereinafter referred to as “electric chew”) 9 is provided in association with the second starting port 8. The electric Chu 9 is provided with a pair of movable blades, and the pair of movable blades are opened, and an open posture (the posture shown in FIG. 1) for guiding the winning of the game ball to the second starting port 8 The front ends of the pair of movable blades are close to the lower end of the first start port 6 and can be displaced to a closed posture that prevents the game ball from winning the second start port 8.

  When the electric chew 9 is in the open position and one game ball enters the second starting port 8, a predetermined number of prize balls are paid out and a second feature for determining whether or not to execute the big hit game. Drawing lottery is performed. The result of the second special figure lottery is notified using, for example, the second special figure display device 10 arranged in the lower right part of the game board 2. That is, the second special symbol display device 10 is arranged in the lower right part of the game board 2, and the symbols displayed on the second special symbol display device 10 are changed through the symbol variation in the second special symbol display device 10. After the change, the second special symbol representing the result of the second special figure lottery is stopped and displayed on the second special figure display device 10.

  The results of the first special figure lottery and the second special figure lottery are also notified by the effect image displayed on the effect display device 5.

  Above the second starting port 8, a universal gate 11 through which a game ball can pass is arranged.

  When one game ball passes through the general gate 11, a general lottery for determining whether or not to open the electric chew 9 is performed. The result of the general drawing lottery is notified using, for example, the general drawing display device 12 arranged in the lower right part of the game board 2. In other words, the general-purpose display device 12 is arranged in the lower right part of the game board 2, and after the symbols on the general-purpose display device 12 change (after the symbols displayed on the general-purpose display device 12 change one after another). The normal symbol representing the result of the general map lottery is stopped and displayed on the general map display device 12.

  An open gate 13 through which a game ball can pass is arranged above the usual gate 11.

  Below the first start port 6, a first grand prize port 14 and a second grand prize port 15 are provided side by side.

  The first big prize opening 14 and the second big prize opening 15 are each formed as a rectangular opening that is long to the left and right. A first opening / closing plate 16 and a second opening / closing plate 17 are provided in association with the first big winning opening 14 and the second big winning opening 15, respectively. The first opening and closing plate 16 and the second opening and closing plate 17 are in a posture along the board surface of the game board 2, respectively, closing the first big winning port 14 and the second big winning port 15, and in a posture tilted to the front side, The first big prize opening 14 and the second big prize opening 15 are opened. And the 1st opening-and-closing plate 16 and the 2nd opening-and-closing plate 17 guide the game ball to the 1st big prize opening 14 and the 2nd big prize opening 15, respectively, in the posture inclined to the near side.

  FIG. 2 is a plan view schematically showing the configuration in the first grand prize winning opening.

  A plurality of protrusions 22 are formed on a portion of the inner surface 21 of the first opening / closing plate 16 excluding a lower end portion (a portion along the lower end edge). The ridge 22 has a minute height, extends in the vertical direction (inclination direction of the inner surface 21 with the first opening / closing plate 16 tilted), and is provided at equal intervals in the left-right direction. Between the adjacent protrusions 22 is a passage 23 through which game balls pass.

  Below the inner surface 21 of the first opening / closing plate 16, a probability changing zone 24 is provided at the same position in the left-right direction as the single central passage 23. The probability variation transition zone 24 is formed with, for example, substantially the same width as the single central passage 23.

  Further, below the inner surface 21 of the first opening / closing plate 16, round continuation zones 25 are respectively provided on the left side and the right side of the probability change transition zone 24. For example, the round continuation zone 25 is formed with a width that is equal to or greater than the total width of the two passages 23.

  The game ball guided onto the inner surface 21 of the first opening / closing plate 16 passes through one of the passages 23 and rolls on the lower end portion of the inner surface 21 in the direction along the passage 23. Fall into. The game ball that has passed through the passage 23 located above the probability change transition zone 24 passes through the probability change transition zone 24 while dropping from the inner surface 21 into the machine. In addition, the game ball that has passed through the passage 23 located above the round continuation zone 25 passes through the round continuation zone 25 while falling from the inner surface 21 into the aircraft. Due to the design of each part of the first grand prize opening 14 such as the configuration of the inner surface 21, the position and size of the probability transition zone 24 and the position and size of the round continuation zone 25, It passes through the probability transition zone 24 with a probability of about 1% and passes through the round continuation zone 25 with a probability of about 95%.

  FIG. 3 is a front view schematically showing the configuration in the second grand prize winning opening.

  A plurality of protrusions 32 are formed on a portion of the inner surface 31 of the second opening / closing plate 17 excluding a lower end portion (a portion along the lower end edge). The protrusion 32 has a minute height, extends in the vertical direction (inclination direction of the inner surface 31 with the second opening / closing plate 17 tilted), and is provided at equal intervals in the left-right direction. Between the adjacent protrusions 32 is a passage 33 through which game balls pass. In addition, on the upper surface of the lower end portion of the inner surface 31, inclined ridges 34 are formed on the left side portion and the right side portion thereof so as to approach the lower end edge of the inner surface 31 as they approach the central portion in the left-right direction. An interval through which one game ball can pass is provided between the lower ends of the left and right inclined protrusions 34.

  Below the inner surface 31 of the second opening / closing plate 17, a probability change transition zone 35 is provided at the same position in the left-right direction as between the left and right inclined protrusions 34. The probability transition zone 35 is formed to have substantially the same width as the interval between the left and right inclined protrusions 34.

  A round continuation zone 36 is provided below the probability transition zone 35. The round continuation zone 36 is formed to have the same width as the probability change transition zone 35.

Most of the game balls guided onto the inner surface 31 of the second opening / closing plate 17 finally pass through one of the passages 33 and roll on the lower end of the inclined plate 21 in the direction along the passage 23. Guided by the inclined ridges 34, it falls into the machine from between the left and right inclined ridges 34. During the fall, the game ball passes through the probability transition zone 35 and the round continuation zone 36 continuously. A game ball that has entered the second grand prize opening 15 passes through the probability transition zone 35 and the round continuation zone 36 with a probability of 100%.
<Electrical configuration>

  FIG. 4 is a block diagram showing an electrical configuration of the pachinko machine.

  The pachinko machine 1 includes a main control unit 41 and sub-control units such as an effect control unit 42. The main control unit 41 and the sub control unit including the effect control unit 42 are connected via a signal line capable of transmitting a signal from the main control unit 41 to the effect control unit 42 in one direction.

  The main control unit 41 is provided with a microcomputer including a CPU 43, a ROM 44 and a RAM 45. Various programs are stored in the ROM 44. In the RAM 45, a first special figure reservation storage area 46, a second special figure reservation storage area 47, and a general figure reservation storage area 48 are set.

  In addition, the pachinko machine 1 includes a first start port sensor 51 that outputs a detection signal in response to a game ball winning the first start port 6 and a game ball winning the second start port 8. A second start sensor 52 that outputs a detection signal in response, a general gate sensor 53 that outputs a detection signal in response to the game ball passing through the normal gate 11, and a game ball that opens the open gate 13. An open gate sensor 54 that outputs a detection signal in response to passing, a first grand prize opening sensor 55 that outputs a detection signal in response to a game ball winning the first big prize opening 14, and a game A first probability variation V sensor 56 that outputs a detection signal in response to the passage of the ball through the probability variation transition zone 24 in the first grand prize opening 14, and a round continuation zone 25 in which the game ball is in the first grand prize opening 14 Output a detection signal in response to passing A first continuation V sensor 57, a second grand prize port sensor 58 that outputs a detection signal in response to a game ball winning the second grand prize port 15, and a game ball in the second grand prize port 15 A second probability variation V sensor 59 that outputs a detection signal in response to passing through the probability variation transition zone 35, and a detection signal in response to the game ball passing through the round continuation zone 36 in the second big winning opening 15. And a second continuation V sensor 60 that outputs. 1st start opening sensor 51, 2nd start opening sensor 52, usual figure gate sensor 53, open gate sensor 54, 1st big winning opening sensor 55, 1st probability variation V sensor 56, 1st continuation V sensor 57, 2nd big Detection signals from the winning opening sensor 58, the second probability variation V sensor 59, and the second continuation V sensor 60 are input to the main control unit 41.

  The main control unit 41 holds the display of the first special symbol on the first special figure display device 7, the second special figure display device 10, the common figure display device 12, and the first special figure display device 7 as a control target. 1st special figure reservation display part 61 and 2nd special figure display which display the number (the number of special symbol random numbers which are remembered in the 1st special figure reservation storage area 46; hereinafter, referred to as “first special figure reservation number”) A second number for displaying the number of reserved special symbols displayed on the device 10 (the number of special symbol random numbers stored in the second special figure reserved storage area 47; hereinafter referred to as "second special figure reserved number"). The number of normal symbols displayed on the special figure hold display unit 62 and the normal figure display device 12 (the number of normal symbol random numbers stored in the general figure hold storage area 48; hereinafter referred to as “the number of common figure holds”). A general map hold display unit 63 for displaying, a first opening / closing plate driving unit 64 for opening / closing the first opening / closing plate 16, and a second opening / closing plate 17 are displayed. The second opening and closing plate drive unit electrically movable drive unit 66 for opening and closing 65 and electrically movable 9 closing drive is connected.

  The first special figure hold display section 61, the second special figure hold display section 62, and the general figure hold display section 63 are each composed of, for example, four LED lamps.

  The first opening / closing plate driving unit 64, the second opening / closing plate driving unit 65, and the electric chew driving unit 66 each include a solenoid or the like.

  The effect control unit 42 includes a microcomputer including a CPU 71, a ROM 72, and a RAM 73.

  The effect display unit 5 and a speaker (not shown) are connected to the effect control unit 42. The effect control unit 42 controls the effect display device 5 and the speaker based on a command from the main control unit 41, displays an effect image or the like on the effect display device 5, and produces a sound effect for exciting the game from the speaker. Output.

  FIG. 5 is a diagram illustrating a function processing unit substantially included in the main control unit.

The main control unit 41 includes a first special figure random number obtaining unit 81, a second special figure random number obtaining unit 82, a general figure random number obtaining unit 83, and a special figure as function processing units realized by software by program processing by the CPU 43. Random number determination unit 84, common random number determination unit 85, jackpot symbol determination unit 86, jackpot game execution unit 87, open pattern setting unit 88, next round permission unit 90, probability variation / normal mode setting unit 91, and time reduction / non-time reduction mode setting A portion 92 is substantially included.
<First special figure random number acquisition unit>

  FIG. 6 is a flowchart showing the flow of processing executed by the first special figure random number acquisition unit.

  When the game ball wins the first starting port 6 and a detection signal is input from the first starting port sensor 51 to the main control unit 41 (YES in step S1), the first special figure random number acquiring unit 81 causes the first It is checked whether or not the number of special symbol random numbers (first special figure holding number) stored in the special figure holding storage area 46 is 4 (step S2).

  When the number of first special figure reservation is less than 4 (NO in step S2), a special symbol random number is acquired by the first special symbol random number acquiring unit 81 (step S3), and the acquired special symbol random number is the first special symbol random number. It is stored in the figure holding storage area 46 (step S4).

  On the other hand, when the first special figure reservation number is 4 (YES in step S2), the special symbol random number is not acquired.

  The special symbol random number is a hard random number that is updated at an extremely short cycle (for example, 33 μsec cycle) by a random number generator built in the CPU 43 of the main control unit 41.

When the special symbol random number is stored in the first special figure reservation storage area 46, in response to this, the first special figure reservation number displayed on the first special figure reservation display unit 61 is updated (for example, one piece LED lamps are additionally lit).
<Second special figure random number acquisition unit>

  FIG. 7 is a flowchart showing the flow of processing executed by the second special figure random number acquisition unit.

  When the game ball wins the second starting port 8 and a detection signal is input from the second starting port sensor 52 to the main control unit 41 (YES in step S11), the second special figure random number acquiring unit 82 makes the second It is checked whether or not the number of special symbol random numbers (second special figure holding number) stored in the special figure holding storage area 47 is 4 (step S12).

  When the number of second special figure reservation is less than 4 (NO in step S12), a special symbol random number is acquired by the second special symbol random number acquisition unit 82 (step S13), and the acquired special symbol random number is the second special symbol random number. It is stored in the figure storage area 47 (step S14).

  On the other hand, when the second special figure reservation count is 4 (YES in step S12), the special symbol random number is not acquired.

When the special symbol random number is stored in the second special figure reservation storage area 47, in response to this, the second special figure reservation number displayed on the second special figure reservation display unit 62 is updated (for example, one piece LED lamps are additionally lit).
<Normal random number acquisition unit>

  FIG. 8 is a flowchart showing the flow of processing executed by the common random number acquisition unit.

  When the game ball passes the general gate 11 and a detection signal is input from the general gate sensor 53 to the main control unit 41 (YES in step S21), the general random number acquisition unit 83 causes the general diagram storage area 48 to be stored. It is checked whether or not the number of normal symbol random numbers (the number of ordinary symbols held) stored in is 4 (step S22).

  When the number of ordinary symbol random numbers stored in the ordinary figure storage area 48 is less than 4 (NO in step S22), the ordinary symbol random number acquisition unit 83 obtains an ordinary symbol random number (step S23) and obtains it. The normal symbol random number thus stored is stored in the normal figure reservation storage area 48 (step S24).

  On the other hand, when the number of normal symbol random numbers stored in the general symbol hold storage area 48 is four (YES in step S22), the normal symbol random numbers are not acquired.

  The normal symbol random number is a counter type soft random number that is updated in a program executed in the main control unit 41.

When a normal symbol random number is stored in the general map hold storage area 48, in response to this, the general map hold number displayed on the general map hold display section 63 is updated (for example, one LED lamp is added and added). Lit).
<Special Random Number Judgment Unit>

  FIG. 9 is a flowchart showing a flow of processing executed by the special figure random number determination unit.

  After the first special symbol is displayed on the special figure display device 7 or the second special symbol is displayed on the second special figure display device 10, the special figure random number determining unit 84 stores the first special figure on hold. It is repeatedly checked whether or not special symbol random numbers are stored in the area 46 and the second special figure hold storage area 47 (whether or not there is a first special figure hold and a second special figure hold).

  If the special symbol random number is not stored in the second special symbol reservation storage area 47 and the special symbol random number is stored in the first special symbol reservation storage area 46, the special symbol random number determination unit 84 performs the first One special symbol random number is read from the special figure holding storage area 46. When a plurality of special symbol random numbers are stored in the first special figure reservation storage area 46, the special symbol random numbers stored first in the first special figure reservation storage area 46 are read out. When the special symbol random number is read from the first special figure reservation storage area 46, in response to this, the first special figure reservation number displayed on the first special figure reservation display unit 61 is updated (for example, one LED The lamp is turned off.

  When a special symbol random number is stored in the second special figure reservation storage area 47, the special figure random number determination unit 84 reads one special symbol random number from the second special figure reservation storage area 47. When a plurality of special symbol random numbers are stored in the second special figure reservation storage area 47, the special symbol random numbers stored first in the second special figure reservation storage area 47 are read out. When the special symbol random number is read from the second special figure reservation storage area 47, in response to this, the second special figure reservation number displayed on the second special figure reservation display unit 62 is updated (for example, one LED The lamp is turned off.

  Thereafter, whether the special symbol random number read out from the first special figure reservation storage area 46 or the second special figure reservation storage area 47 by the special figure random number determination unit 84 matches a predetermined jackpot determination value. Is determined.

  Specifically, it is checked whether or not a probability variation mode to be described later is set (step S31).

  When the probability variation mode is set (YES in step S31), the probability variation mode determination value table stored in the ROM 44 is referred to (step S32). Then, the value of the special symbol random number read from the first special figure reservation storage area 46 or the second special figure reservation storage area 47 coincides with one of the jackpot determination values stored in the probability variation mode determination value table. Is determined (step S33).

  On the other hand, if the probability variation mode is not set, that is, if the normal mode described later is set (NO in step S31), the normal mode determination value table stored in the ROM 44 is referred to (step S35). ). Then, the value of the special symbol random number read from the first special figure reservation storage area 46 or the second special figure reservation storage area 47 matches any of the jackpot determination values stored in the normal mode determination value table. Is determined (step S33).

  If the value of the special symbol random number matches the jackpot determination value (YES in step S33), the result of the first special drawing lottery or the second special drawing lottery is determined to be a big hit, and the execution of the jackpot game is determined (step S35). ). When the result of the first special figure lottery is determined to be a big hit, after the symbol variation in the first special figure display device 7, the first special symbol representing the big hit stops on the first special figure display device 7. Displayed. When the result of the second special figure lottery is determined to be a big hit, after the symbol change in the second special figure display device 10, the second special symbol representing the big hit stops on the second special figure display device 10. Displayed.

  On the other hand, when the value of the special symbol random number does not coincide with the jackpot determination value (NO in step S33), the result of the first special drawing lottery or the second special drawing lottery is determined to be out of play, and the big hit game is not executed. When it is determined that the result of the first special figure lottery is out of date, after the symbol variation in the first special figure display device 7, the first special symbol representing the outage is stopped and displayed on the first special figure display device 7. Is done. In addition, when it is determined that the result of the second special figure lottery is out of place, after the symbol variation in the second special figure display device 10, the second special symbol representing the outage stops on the second special figure display device 10. Displayed.

For example, the probability variation mode determination value table has a probability that the value of the special symbol random number matches the jackpot determination value, that is, the probability that a big hit will occur in the first special figure lottery and the second special figure lottery (the first special figure lottery and the first special lottery 2) The normal mode judgment value table is set so that the probability that the special symbol random number value matches the jackpot judgment value is 1/210. Has been created. Thereby, the big hit probability in the probability variation mode is 1/70. Further, the jackpot probability in the normal mode is 1/210, which is lower than the jackpot probability in the probability variation mode.
<Normal random number determination unit>

  FIG. 10 is a flowchart showing a flow of processing executed by the common random number determination unit.

  After the ordinary symbol is displayed on the ordinary symbol display device 12, the ordinary symbol random number determination unit 85 repeatedly checks whether or not the ordinary symbol random number is stored in the ordinary symbol hold storage area 48 (whether or not the ordinary symbol is retained). (Step S41).

  When there is an ordinary figure hold (YES in step S41), the ordinary random number determination unit 85 reads one normal symbol random number from the ordinary figure storage area 48 (step S42). In the case where a plurality of normal symbol random numbers are stored in the general symbol hold storage area 48, the normal symbol random number stored first in the general symbol hold storage area 48 is read out.

  When a normal symbol random number is read from the general figure hold storage area 48, in response to this, the general figure hold number displayed on the general figure hold display section 63 is updated (for example, one LED lamp is turned off). .

  Then, the normal figure random number determination unit 85 determines whether or not the value of the normal symbol random number read from the normal figure holding storage area 48 matches a predetermined normal hit determination value (step S43).

  When the value of the normal symbol random number matches the normal hit determination value (YES in step S43), the result of the normal drawing lottery is determined to be a win, and the opening of the electric chew 9 is determined (step S44). Then, after the symbol change in the general symbol display device 12, the normal symbol representing the hit is stopped and displayed on the general symbol display device 12. After that, the electric chew drive unit 45 is controlled to open the electric chew 9 for a predetermined time.

  On the other hand, if the value of the normal symbol random number does not match the normal hit determination value (NO in step S43), it is determined that the result of the normal symbol lottery is out of order, and the closed position of the electric chew 9 is maintained. In this case, after the symbol change in the general symbol display device 12, the normal symbol representing the discontinuity is stopped and displayed on the general symbol display device 12.

  It should be noted that the number of normal hit determination values used during setting of the short time mode described later is larger than the number of normal hit determination values used during setting of the non-time reduction mode described later. Thus, during the setting of the time reduction mode, the probability of winning in the normal drawing lottery (the probability that the value of the normal symbol random number matches the normal hit determination value) is relatively high (for example, 9998/10000), and the non-time reduction mode Is set, the probability of winning in the standard drawing is relatively low (for example, 1000/10000).

Also, the opening time of the electric Chu 9 once (predetermined time during which the open posture is maintained) differs between the setting of the time-saving mode and the setting of the non-time-saving mode. During the setting of the time reduction mode, for example, the electric chute 9 is opened for 5 seconds. On the other hand, during the setting of the non-time reduction mode, for example, the electric chew 9 is opened for 2 seconds.
<Big hit design determination unit>

  There are 16 types of big hits for the first special drawing lottery. The first special symbol displayed on the first special figure display device 7 varies depending on the type of jackpot of the first special figure lottery. That is, the 16 types of jackpots and the jackpot symbols 1 to 16, which are the first special symbols displayed on the first special symbol display device 7, are associated one-to-one.

  On the other hand, there is only one type of jackpot in the second special figure lottery, and the second special symbol representing the jackpot is only the jackpot symbol 17.

When a big win comes out in the first special figure lottery or the second special figure lottery (when the special figure random number determination unit 84 determines the result of the first special figure lottery or the second special figure lottery is a big hit), the big hit symbol determination Whether the first special symbol displayed on the first special symbol display device 7 is any one of the big hit symbols 1 to 16 or whether the big special symbol 17 is displayed on the second special symbol display device 10 by the unit 86 Is determined.
<Big hit game control unit>

  When a big hit comes out in the first special figure lottery or the second special figure lottery, a big hit game is executed.

In the big hit game, the first open / close plate driving unit 64 or the second open / close plate driving unit 65 is controlled by the big hit game execution unit 87 to open the first big winning port 14 or the second big winning port 15. 28 seconds have passed after the first grand prize opening 14 or the second big prize opening 15 is opened, or when eight game balls are awarded to the first major prize opening 14 or the second major prize opening 15 The first grand prize opening 14 or the second big prize opening 15 is closed. The operation from the opening of the first grand prize opening 14 or the second big prize opening 15 to the closing is regarded as one round, and this operation is repeated up to 16 times (up to the 16th round). The second round is performed unconditionally. After the third round, permission by the next round permission unit 90 is performed on condition.
<Open pattern setting section>

  FIGS. 11 and 12 are setting tables used for setting the opening patterns of the first big prize opening and the second big prize opening.

  The ROM 44 of the main control unit 41 stores a setting table T1 shown in FIG. 11 and a setting table T2 shown in FIG. In the setting table T1, the opening patterns of the first big winning opening 14 and the second big winning opening 15 are stored in association with the big hit symbols 1-16. In the setting table T2, the opening patterns of the first big prize opening 14 and the second big prize opening 15 are stored in association with the big hit symbol 17.

  When a big hit is made in the first special drawing lottery, the opening pattern setting unit 88 refers to the setting table T1 shown in FIG. 11 and based on the big hit symbols 1 to 16 determined by the big hit symbol determination unit 86, An opening pattern of the first big winning port 14 and the second big winning port 15 in the big hit game with respect to the big hit is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 1, the first grand prize winning opening 14 is opened in each round of the first to fifteenth rounds, and in the sixteenth round An opening pattern in which the second big prize opening 15 is opened is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 2, the first big prize opening 14 is opened in each round of the first to fourteenth rounds, An opening pattern is set in which the second big prize opening 15 is opened in a round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 3, the first grand prize winning opening 14 is opened in each round of the first to thirteenth rounds, and An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 4, the first big prize opening 14 is opened in each round of the first to twelfth rounds, and the thirteenth to sixteenths. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 5, the first grand prize opening 14 is opened in each round of the first to eleventh rounds, and the twelfth to sixteenth 16th. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 6, the first grand prize winning opening 14 is opened in each round of the first to tenth rounds, An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 7, the first grand prize winning opening 14 is opened in each of the first to ninth rounds, and the tenth to sixteenth. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 8, the first grand prize opening 14 is opened in each round of the first to eighth rounds, and the ninth to sixteenth symbols are displayed. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 9, the first grand prize winning opening 14 is opened in each of the first to seventh rounds, and the eighth to sixteenth. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 10, the first big prize opening 14 is opened in each round of the first to sixth rounds, and the seventh to sixteenth symbols are displayed. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 11, the first big prize opening 14 is opened in each round of the first to fifth rounds, and the sixth to sixteenth symbols are displayed. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 12, the first grand prize opening 14 is opened in each round of the first to fourth rounds, and the fifth to sixteenth. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 13, the first big prize opening 14 is opened in each of the first to third rounds, and the fourth to sixteenth. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 14, the first big winning opening 14 is opened in each of the first and second rounds, and the third to sixteenth symbols are displayed. An opening pattern is set in which the second big prize opening 15 is opened in each round.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 15, the first big prize opening 14 is opened in the first round, and in each round of the second to sixteenth rounds. An opening pattern in which the second big prize opening 15 is opened is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 16, an opening pattern is set in which the second grand prize winning opening 15 is opened in each round of the first to sixteenth rounds. The

When a big win comes out in the second special drawing lottery, the opening pattern setting unit 88 refers to the setting table T2 shown in FIG. An opening pattern of the two major winning openings 15 is set. That is, the first big winning opening 14 is not opened, and an opening pattern is set in which the second big winning opening 15 is opened in each round of the first to sixteenth rounds.
<Next round permission section>

  FIG. 13 is a flowchart showing a flow of processing executed by the next round permission unit.

  When the first big prize opening 14 is opened (YES in step S51), the next round permission unit 90 constantly monitors the output of the first continuous V sensor 57 during the opening. Based on the output of the first continuation V sensor 57, it is repeatedly checked whether or not the game ball has passed the round continuation zone 25 in the first big winning opening 14.

  When the game ball passes through the round continuation zone 25 while the first big winning opening 14 is opened (YES in Step S52), the next round permission unit 90 permits the next round of the big hit game to be executed (Step S52). S53).

  On the other hand, if the first big winning opening 14 is closed without the game ball passing through the round continuation zone 25 (NO in step S52), execution of the next round is not permitted and the big hit game ends.

  Further, when the second big prize opening 15 is opened (YES in step S54), the next round permission unit 90 constantly monitors the output of the second continuous V sensor 60 during the opening. Then, based on the output of the second continuation V sensor 60, it is repeatedly checked whether or not the game ball has passed through the round continuation zone 36 in the second big winning opening 15.

  When the game ball passes through the round continuation zone 36 while the first big winning opening 14 is opened (YES in Step S55), the next round permission unit 90 permits the next round of the big hit game to be executed (Step S55). S53).

On the other hand, if the first big winning opening 14 is closed without the game ball passing through the round continuation zone 36 (NO in step S55), execution of the next round is not permitted and the big hit game is ended.
<Probability / Normal mode setting section>

  FIG. 14 is a flowchart showing a flow of processing executed by the probability changing / normal mode setting unit.

  When the first big winning opening 14 is opened (YES in step S61), the probability variation / normal mode setting unit 91 monitors the output of the first probability variation V sensor 56 during the opening. Then, based on the output of the first probability variation V sensor 56, it is repeatedly checked whether or not the game ball has passed the probability variation transition zone 24 in the first big winning opening 14.

  When the game ball passes through the probability change transition zone 24 while the first big winning opening 14 is opened (YES in step S62), the probability change / normal mode setting unit 91 sets 1 to the probability change transition flag provided in the RAM 45. It is set (step S63). The probability variation transition flag is reset to 0 at the start of this process.

  Thereafter, it is determined whether or not the big hit game is finished (step S64). If the big hit game is not finished, it is checked whether or not the first big prize opening 14 or the second big prize opening 15 is opened (steps S61 and S65).

  When the second big prize opening 15 is opened (YES in step S65), the output of the second probability variation V sensor 59 is monitored by the probability variation / normal mode setting unit 91 during the opening. Then, based on the output of the second probability variation V sensor 59, it is repeatedly checked whether or not the game ball has passed the probability variation transition zone 35 in the second big winning opening 15.

  If the game ball passes through the probability change transition zone 35 while the second big prize opening 15 is opened (YES in Step S66), the probability change / normal mode setting unit 91 sets 1 in the probability change transition flag provided in the RAM 45. It is set (step S63).

  Thereafter, it is determined whether or not the big hit game is finished (step S64). If the big hit game is not finished, it is checked again whether or not the first big prize opening 14 or the second big prize opening 15 is opened (steps S61 and S65).

  When the big hit game ends (YES in step S64), the probability variation / normal mode setting unit 91 checks whether or not 1 is set in the probability variation transition flag (step S67).

  If the probability variation transition flag is set to 1 (YES in step S67), the probability variation / normal mode setting unit 91 sets a probability variation mode with a relatively high jackpot probability in the first special figure lottery and the second special figure lottery. It is set (step S68).

  In the probability variation mode, the total of the number of times the first special symbol is displayed on the first special symbol display device 7 and the number of times the second special symbol is displayed on the second special symbol display device 10 after the end of the jackpot game is determined in advance. The process continues until the certain number of changes is reached (step S69).

  When the probability change mode ends (YES in step S69), the probability change / normal mode setting unit 91 sets a normal mode in which the big hit probability in the first special figure lottery and the second special figure lottery is relatively low (step S70). ).

  If the probability change transition flag is not set to 1, that is, if the state of the probability change transition flag after the end of the big hit game is 0 (NO in step S67), the normal mode is set immediately after the end of the big hit game. The

The probability variation number is set to 100, for example.
<Time reduction / non-time reduction mode setting section>

  In addition, when the probability variation mode is set after the big hit game is ended, the time reduction / non-time reduction mode setting unit 92 sets the time reduction mode. In the time reduction mode, after the jackpot game is over, the total number of times the first special symbol is displayed on the first special figure display device 7 and the second special symbol is displayed on the second special figure display device 10 is determined in advance. Continue until the number of times is reached.

  After the completion of the time reduction mode, the time reduction / non-time reduction mode setting unit 92 sets the non-time reduction mode.

  As described above, in the time reduction mode, the probability of winning in the general drawing lottery is relatively high, and in the non-time reduction mode, the probability of winning in the general drawing lottery is relatively low. Therefore, in the time reduction mode, the electric chew 9 opens and closes relatively frequently, and it is relatively easy to win a game ball in the second starting port 8. Therefore, it can be said that the time reduction mode is a mode in which the electric chew 9 operates in such a manner that the winning of the game ball to the second start port 8 is relatively easy. On the other hand, in the non-short-time mode, the electric chew 9 opens and closes relatively infrequently, and it is relatively difficult to win a game ball in the second starting port 8. Therefore, it can be said that the non-time reduction mode is a mode in which the electric chew 9 operates in such a manner that it is relatively difficult to win a game ball to the second starting port 8.

The number of time reductions is set to 100, for example.
<Pachinko game>

  In the pachinko machine 1, when the power is turned on, the normal mode and the non-time reduction mode are set. That is, in the pachinko machine 1, the mode setting state immediately after the power is turned on is the normal / non-time-short state. In the normal / non-time-saving state, a normal game is played.

  In a normal game, the player performs a so-called left-handed operation in which the rotation angle of the handle is adjusted so that the game ball reaches the left side of the center unit 4 in the game board 2. When left-handed, a part of the game ball falls from the left side of the center unit 4 toward the first start port 6 due to the gauge configuration.

  When the game ball wins the first start opening 6, a first special figure lottery is performed, and a first special symbol representing the result of the first special figure lottery is displayed on the first special figure display device 7. In addition, an effect image (symbol) representing the result of the first special drawing lottery is displayed on the effect display device 5.

  When a normal game progresses and a big hit is made in the first special drawing lottery, a first special symbol (big hit symbol) representing the big hit is displayed on the first special figure display device 7, and an effect image representing the big hit is displayed. It is displayed on the device 5. Prior to the start of the big hit game, for example, a navigation message “Right-hand!” Is displayed on the effect display device 5 in order to prompt the player to turn the handle to the maximum, so-called right-handed.

  When the right strike is performed, the game ball falls on the right side of the center unit 4. Due to the gauge configuration, a part of the game ball that falls on the right side of the center unit 4 passes through the open gate 13 and the normal gate 11 continuously.

  When the game ball passes through the open gate 13, a big hit game is started.

  Below, the case where the big hit symbol 1 is displayed on the 1st special figure display apparatus 7 as an example is assumed.

  At the start of the big hit game, for example, a navigation message such as “If you finish to the 16th round is surely confirmed!” Or “If you finish to the goal is surely confirmed!” Is displayed on the effect display device 5.

  In the big hit game, the first big winning opening 14 is opened at least twice. Further, when the game ball passes through the round continuation zone 25 in the first big winning opening 14 in each round after the second round, the first big winning opening 14 is opened up to 15 times (see FIG. 11). Then, when the game ball passes through the round continuation zone 25 in the first big winning opening 14 in the fifteenth round, the second big winning opening 15 is opened in the sixteenth round.

  FIG. 15 is a table showing the round continuation rate of the jackpot game and the expected change entry probability in each round.

  Even if the game ball does not pass through the round continuation zone 25 in the first big winning opening 14 in the first round, the second round is always executed and the first big winning opening 14 is opened. Therefore, the round continuation rate from the first round to the second round is 100%. After the third round, the first grand prize opening 14 is opened on condition that the game ball has passed through the round continuation zone 25 in the first big prize opening 14 in the previous round. Since the first grand prize opening 14 is designed so that the game balls that have entered the first big prize opening 14 pass the round continuation zone 25 with a probability of about 95%, the next round after the second round is designed. The round continuation rate is 95%.

  In addition, since the first grand prize opening 14 is designed so that the game balls entering the first big prize opening 14 pass through the probability transition zone 24 with a probability of about 1%, the first to the 15th round The probability change probability entry in each round is 1%. On the other hand, since the second grand prize opening 15 is designed so that the game ball entering the second big prize opening 15 passes through the probability variation transition zone 35 and the round continuation zone 36 with a probability of 100%. The expectation of probability change entry in the 16th round is 100%. Therefore, as the player approaches the final sixteenth round, the player increases his expectation for entering the probability change mode.

  During the big hit game, since the non-time-saving mode is set, the probability of winning in the standard drawing is relatively low. In addition, during the setting of the non-time reduction mode, the time for one opening of the electric chew 9 is relatively short. However, the probability of winning in the standard drawing lottery during the setting of the non-time reduction mode is set to 1000/10000, for example, and the opening time of the electric Chu 9 is set to 2 seconds, for example. Therefore, several game balls win the second starting port 8 during the big hit game. As a result, normally, several second special figure holds can be obtained during the big hit game.

  After the big hit game ends, the probability variation mode and the time reduction mode are set. While the time reduction mode is set, the player makes a right turn.

  When a game ball that falls on the right side of the center unit 4 passes through the general gate 11, a general lottery is performed. In the regular drawing lottery in the short-time mode, the winning comes out with a high probability, so the electric chute 9 opens and closes frequently, and game balls frequently win the second starting port 8. Accordingly, in the time reduction mode, normally, there is a state where there is one or more second special figure hold, the second special figure lottery is repeatedly performed, and the second special symbol representing the result of the second special figure lottery is the second special figure. One after another is displayed on the display device 10.

  In the probability variation mode and the time reduction mode, the total number of times the first special symbol is displayed on the first special figure display device 7 and the second special symbol is displayed on the second special figure display device 10 reaches 100 times. (Normally, until the second special symbol is displayed 100 times on the second special symbol display device 10).

  When a big hit is made in the second special drawing lottery in the probability variation / short time mode in which the probability variation mode and the time reduction mode are set, in the big hit game for the big hit, the second big prize opening 15 in each round of the 1st to 16th rounds Is released. Since the game ball that has entered the second big winning opening 15 passes through the probability transition zone 35 with a probability of 100%, the game ball enters the probability variation / short time state again after the big hit game ends.

  On the other hand, the number of times the first special symbol is displayed on the first special symbol display device 7 and the number of times the second special symbol is displayed on the second special symbol display device 10 without a big hit in the second special symbol lottery. When the total reaches 100 times, the probability variation mode and the time reduction mode are terminated, and the normal mode and the non-time reduction mode are entered (the normal / non-time reduction mode is set). In the non-short-time mode, the player strikes left and aims to enter the game ball into the first starting port 6.

  Below, the case where the big hit symbol 9 is displayed on the 1st special figure display apparatus 7 as another example is assumed.

  At the start of the big hit game, for example, a navigation message such as “If you finish to the 16th round is surely confirmed!” Or “If you finish to the goal is surely confirmed!” Is displayed on the effect display device 5.

  In the big hit game, the first big winning opening 14 is opened at least twice. Further, when the game ball passes through the round continuation zone 25 in the first big winning opening 14 in each round after the second round, the first big winning opening 14 is opened up to seven times (see FIG. 11). When the seventh round is reached, for example, a navigation message “Profit change is confirmed if this round is exceeded!” Is displayed on the effect display device 5. When the game ball passes through the round continuation zone 25 in the first big winning opening 14 in the seventh round, the second big winning opening 15 is opened in the eighth round. In each round after the ninth round, the second big prize opening 15 is opened.

  After the big hit game ends, the probability variation mode and the time reduction mode are set. In the probability variation mode and the time reduction mode, the total number of times the first special symbol is displayed on the first special figure display device 7 and the second special symbol is displayed on the second special figure display device 10 reaches 100 times. (Normally, until the second special symbol is displayed 100 times on the second special symbol display device 10).

  When a big hit is made in the second special drawing lottery in the probability variation / short time mode in which the probability variation mode and the time reduction mode are set, in the big hit game for the big hit, the second big prize opening 15 in each round of the 1st to 16th rounds Is released. Since the game ball that has entered the second big winning opening 15 passes through the probability transition zone 35 with a probability of 100%, the game ball enters the probability variation / short time state again after the big hit game ends.

On the other hand, the number of times the first special symbol is displayed on the first special symbol display device 7 and the number of times the second special symbol is displayed on the second special symbol display device 10 without a big hit in the second special symbol lottery. When the total reaches 100 times, the probability variation mode and the time reduction mode are terminated, and the normal mode and the non-time reduction mode are entered (the normal / non-time reduction mode is set).
<Effect>

  In the pachinko machine 1, a big hit lottery is performed in response to a winning of a game ball at the first start port 6 or the second start port 8. When a big hit comes out in the big hit lottery, a big hit game is executed. In the big hit game, the operation in which the first grand prize winning opening 14 or the second big winning prize opening 15 is opened over a predetermined period is defined as one round, and the action is repeated up to 16 times.

  Round continuation zones 25 and 36 are provided in the first grand prize winning opening 14 and the second big winning prize opening 15, respectively. When the first grand prize opening 14 or the second big prize opening 15 is opened and a game ball enters the round continuation zones 25 and 36, the operation of the next round is permitted. In this case, after the first grand prize opening 14 or the second big prize opening 15 is closed, the process proceeds to the next round, and the first big prize opening 14 or the second big prize opening 15 is opened again.

  In addition, the first big winning opening 14 and the second big winning opening 15 are provided with probability changing zones 24 and 35. When the first big winning opening 14 or the second big winning opening 15 is opened and a game ball enters the probability changing zones 24 and 35, the probability of winning a big hit in the big hit lottery is relatively high after the big hit game ends. Probability mode is set. On the other hand, when the big hit game is finished without the game balls entering the probability variation transition zones 24 and 35, the normal mode is set with a relatively low probability of making a big hit in the big hit lottery.

  Therefore, at the start of the big hit game, it is unclear whether the probability change mode or the normal mode will be entered after the big hit game ends. Therefore, the player can enjoy the big hit game while expecting the probability change mode entry (setting). Therefore, it is possible to prevent the player's motivation for the game from decreasing before the start of the big hit game.

  Further, in the big hit game, when reaching the round (predetermined round) in which the second big prize opening 15 is opened, the probability that the game ball enters the probability change transition zone increases.

  In order to reach the first round in which the second grand prize opening 15 is opened, a game ball is placed in the round continuation zone 25 in the first big prize opening 14 in each round up to the previous round of that round. It is necessary to enter. Therefore, the player's skill is reflected in determining whether or not to enter the probability variation mode. As a result, it is possible to create an amusing game.

  And, it is possible to give the player a throbbing feeling as to whether or not the big hit game (round) continues (whether the so-called puncture does not end) until reaching the first round in which the second big prize opening 15 is opened. However, as the second grand prize opening 15 approaches, the player's expectation for entering the probability variation mode can be increased. Then, after reaching the round in which the second grand prize opening 15 is opened and the probability variation mode entry is determined, it is possible to give the player a thrill of whether or not the big hit game will continue until the final 16 rounds. . Therefore, during the big hit game, a thrilling feeling can be given to the player all the time, and the player can be excited.

  The result of the big hit lottery is notified by displaying a special symbol representing the result of the big hit lottery on the first special figure display device 7 or the second special figure display device 10. A round in which the second big winning opening 15 is opened is determined in association with the jackpot symbols 1 to 17 which are special symbols indicating that the jackpot lottery result is a jackpot.

  The first grand prize opening 14 and the second grand prize opening 15 are such that a game ball entering the probability variation transition zone 24 of the first grand prize opening 14 is a game ball entering the probability variation transition zone 35 of the second major prize opening 15. Designed to be more difficult than entering.

  As a result, while the round in which the first big winning opening 14 is opened continues, the game ball enters the probability changing transition zone 24 of the first big winning opening 14 and enters the probability changing mode after the big hit game. The entry may be finalized. However, since the possibility is not high, the player has some expectation in the determination of the probability change mode entry by entering the game ball into the probability change transition zone 35 of the first big winning opening 14, It is possible to give a great sense of expectation to the opening of the two major winning openings 15. Therefore, it is possible to create a more entertaining game.

  The big hit game is started in response to the game ball passing through the open gate 13. In other words, the big hit game is not started until the game ball passes through the open gate 13. Therefore, if the number of possession balls (game balls that can be used for games) is small at the time of a big hit lottery, a sufficient number of possession balls will be secured by borrowing additional game balls. The big hit game can be started. As a result, it is possible to prevent the big hit game from being started when the ball is out of play.

  An electric chew 9 is provided at the second starting port 8. After the big hit game is over, the short time mode is set in which the electric chew 9 operates in such a manner that the winning of the game ball to the second starting port 8 is relatively easy. The non-short-time mode in which the electric chew 9 operates is set in such a manner that the short-time mode ends and the winning of the game ball to the second start port 8 becomes relatively difficult.

  Thereby, while the time reduction mode is set, the player can enjoy the game without greatly reducing the number of possessions.

  In addition, at the start of the big hit game or the like, it is notified which round the second big winning opening 15 is opened. This notification is achieved by displaying a navigation message on the effect display device 5 or the like.

  By recognizing which round the second big winning opening 15 is open to, the player can have a strong willingness to continue the round until the round is reached.

  In addition, in the pachinko machine 1, at the start of the big hit game, a navigation message that informs false information such as “If you complete the round to 16 rounds is surely confirmed!” Is displayed on the effect display device 5, and during the big hit game, There may be a case where a navigation message for notifying the real information that the probability change is confirmed if the round is exceeded is displayed on the effect display device 5.

By re-notifying that a round different from the originally announced round is a round in which the second big prize opening 15 is opened, it is possible to give the player a surprise and further increase the interest.
<Modification 1>

  It is assumed that there are 16 types of jackpots corresponding to the jackpot symbols 1-16 in the first special drawing lottery, but in addition to the 16 types of jackpots or instead of the 16 types of jackpots, FIG. As shown in FIG. 3, three types of jackpots corresponding to the jackpot symbols 18 to 20 may be set.

  In the jackpot game with the jackpot corresponding to the jackpot symbols 18 to 20, the maximum number of rounds is twelve.

  When the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 18, the opening pattern setting unit 88 opens the first big prize opening 14 in each of the first to eleventh rounds. An opening pattern in which the second grand prize winning opening 15 is opened in 12 rounds is set.

  When the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 19, the first pattern winning opening 14 is opened in each round of the first to seventh rounds by the opening pattern setting unit 88. An opening pattern in which the second grand prize winning opening 15 is opened in each of the 8th to 12th rounds is set.

  When the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 20, the opening pattern setting unit 88 opens the first grand prize winning opening 14 in each of the first to third rounds. An opening pattern in which the second grand prize winning opening 15 is opened in each of the 8th to 12th rounds is set.

Thus, the maximum number of rounds in the jackpot game is not limited to 16.
<Modification 2>

  Moreover, although the opening pattern in which the second big prize opening 15 is opened in each round after the predetermined round is illustrated, 16 types of big hits corresponding to the big hit symbols 1 to 16 and three types of big hits corresponding to the big hit symbols 18 to 20 Alternatively, in addition to or instead of the 19 types of jackpots corresponding to the jackpot symbols 1-16, 18-20, two types of jackpots corresponding to the jackpot symbols 21, 22 are provided as shown in FIG. It may be set.

  When the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 21, the opening pattern setting unit 88 causes the first grand prize opening 14 to be displayed in each of the first to seventh and ninth to fifteenth rounds. An opening pattern is set in which the second grand prize opening 15 is opened in the eighth and sixteenth rounds.

When the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 22, the opening pattern setting unit 88 causes the first large symbol in each of the first to seventh, ninth, eleventh, thirteenth, and fifteenth rounds. The winning opening 14 is opened, and an opening pattern is set in which the second major winning opening 15 is opened in each of the eighth, tenth, twelfth, fourteenth and sixteenth rounds.
<Modification 3>

  FIG. 18 is a diagram illustrating another example of the function processing unit substantially included in the main control unit.

  The main control unit 41 includes a first special figure random number obtaining unit 81, a second special figure random number obtaining unit 82, a general figure random number obtaining unit 83, and a special figure as function processing units realized by software by program processing by the CPU 43. Random number determination unit 84, common random number determination unit 85, jackpot symbol determination unit 86, jackpot game execution unit 87, open pattern setting unit 88, next round permission unit 90, probability variation / normal mode setting unit 91, and time reduction / non-time reduction mode setting In addition to the part 92, the opening time setting part 89 may be substantially included.

  FIG. 19 is a setting table used for setting the opening pattern of the first grand prize opening and the second big prize opening and the opening time of the first big prize opening.

  When the main control unit 41 has the opening time setting unit 89, for example, big hit symbols 23 and 24 are set instead of the big hit symbol 9 (see FIG. 11). Then, in the ROM 44 of the main control unit 41, as shown in FIG. 19, the opening pattern of the first big prize opening 14 and the second big prize opening 15 and the first big prize are associated with the big hit symbols 23 and 24. The opening time of the mouth 14 is stored.

  If the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 23, the first pattern winning opening 14 is opened in each round of the first to seventh rounds by the opening pattern setting unit 88, An opening pattern is set in which the second grand prize opening 15 is opened in each of the 8th to 16th rounds. Further, the opening time setting unit 89 sets the maximum opening time of the first big winning opening 14 to 28 seconds in each of the first to fifth rounds. In the sixth and seventh rounds, the maximum opening time of the first grand prize opening 14 is set to a time shorter than 28 seconds, for example, 2 seconds. In each of the 8th to 16th rounds, the maximum opening time of the second big prize opening 15 is set to 28 seconds.

  If the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 24, the first pattern winning opening 14 is opened in each round of the first to seventh rounds by the opening pattern setting unit 88, An opening pattern is set in which the second grand prize opening 15 is opened in each of the 8th to 16th rounds. In addition, the opening time setting unit 89 sets the maximum opening time of the first big winning opening 14 to 28 seconds in each of the first to sixth rounds. In the seventh round, the maximum opening time of the first grand prize opening 14 is set to a time shorter than 28 seconds, for example, 2 seconds. In each of the 8th to 16th rounds, the maximum opening time of the second big prize opening 15 is set to 28 seconds.

  Thus, the 6th, 7th or 7th rounds before reaching the 8th round where the 2nd big prize opening 15 is opened is set as the short time open round, and the 1st big prize in the short time open round is set. The maximum opening time of the mouth 14 is set to be shorter than the maximum opening time of the first big winning opening 14 in other rounds.

  In the short opening round, the first big prize opening 14 is opened only for a short time, so that the risk of so-called puncture end is increased, and a great throbbing feeling can be given to the player. Further, it is possible to concentrate the player's all nerves on the winning of the game ball to the first grand prize opening 14. And if you complete the short opening round, you will reach the round in which the second grand prize opening 15 will be opened, giving the player a sense of expectation for entering the probability change mode, turning away from the great throbbing feeling towards the end of the puncture Can do. As a result, the player's emotion can be greatly changed, and the player can be more excited.

In this case, when the round immediately before the short opening round is started, for example, a navigation message “Danger! Soon to enter the danger zone!” May be displayed on the effect display device 5. In the short-opening round, for example, a navigation message “Probability change is confirmed if the danger zone is exceeded!” May be displayed on the effect display device 5.
Second Embodiment

  FIG. 20 is a front view of a game board provided in the pachinko machine according to the second embodiment of the present invention.

  20, parts corresponding to the parts shown in FIG. 1 are denoted by the same reference numerals as those parts. In the following description, the description of the parts with the same reference numerals is omitted.

  Below the first starting port 6, one large winning port 101 is provided.

  The special winning opening 101 is formed as a rectangular opening that is long on the left and right. An opening / closing plate 102 is provided in association with the big prize opening 101. The open / close plate 102 closes the big prize opening 101 in a posture along the board surface of the game board 2 and opens the big prize opening 101 in a posture inclined to the front side. The opening / closing plate 102 guides the game ball to the grand prize winning port 101 in a posture inclined to the front side.

  21A and 21B are front views schematically showing the configuration in the special winning opening.

  The structure of the inner surface of the opening / closing plate 102 is the same as the inner surface 21 of the first opening / closing plate 16 shown in FIG. Hereinafter, the description of the configuration of the inner surface of the opening / closing plate 102 will be omitted, and when necessary for the description of the configuration within the special winning opening 101, referring to FIG. Cite the composition.

  Below the opening / closing plate 102, a probability variation zone 103 is provided at the same position in the left-right direction as the single central passage 23 (see FIG. 2). The probability variation zone 103 is formed to have substantially the same width as, for example, one central passage 23.

  Further, below the opening / closing plate 102, round continuation zones 104 are provided at the upper left and upper right of the probability change transition zone 103, respectively. For example, the round continuation zone 104 is formed to have a width equal to or greater than the total width of the two passages 23 (see FIG. 2).

  A probability variation movable member 105 is provided below each round continuation zone 104. Each probability variation movable member 105 has a thin plate shape and is inclined downward toward the probability variation transition zone 103. Further, as shown in FIG. 21A, each probability variation movable member 105 has a difficult posture in which an end portion on the center side in the left-right direction is relatively separated from the probability variation transition zone 103, and the end portion is a probability variation transition zone. 103 is provided so as to be displaceable in an easy posture relatively close to 103.

  The game ball guided onto the inner surface of the opening / closing plate 102 passes through one of the passages 23, rolls on the lower end portion of the inner surface in a direction along the passage 23, and falls into the machine from the lower end of the inner surface. The game ball that has passed through the passage 23 located above the probability change transition zone 103 passes through the probability change transition zone 103 while dropping from the inner surface of the opening / closing plate 102 into the machine. Further, the game ball that has passed through the passage 23 located above the round continuation zone 104 passes through the round continuation zone 104 while falling from the inner surface of the opening / closing plate 102 into the machine.

  When the probability variation movable member 105 assumes a difficult posture, only a game ball that has passed through the passage 23 positioned above the probability variation transition zone 103 can pass through the probability variation transition zone 103, and the game that has entered the big winning opening 101 The probability that the sphere will pass the probability transition zone 103 is about 1%.

  On the other hand, when the probability variation movable member 105 takes an easy posture, the game ball that has passed through the passage 23 other than the passage 23 located above the probability variation transition zone 103 rolls on the probability variation movable member 105 toward the probability variation transition zone 103. Then, it falls from the probability variation movable member 105 toward the probability variation transition zone 103. Thereby, the probability that the game ball that has entered the special winning opening 101 passes through the probability variation transition zone 103 is about 100%.

  Further, due to the design of each part in the grand prize winning opening 101, the game balls that have entered the big winning prize opening 101 pass through the round continuation zone 104 with a probability of about 95%.

  FIG. 22 is a block diagram showing an electrical configuration of the pachinko machine shown in FIG.

  20, parts corresponding to the parts shown in FIG. 4 are denoted by the same reference numerals as those parts. In the following description, the description of the parts with the same reference numerals is omitted.

  The pachinko machine 1 has a large winning hole sensor 111 that outputs a detection signal in response to a game ball having won the big winning hole 101, and that the gaming ball has passed the probability changing zone 103 in the large winning hole 101. A probability variation V sensor 112 that outputs a detection signal in response to the game, and a continuation V sensor 113 that outputs a detection signal in response to the game ball passing through the round continuation zone 104 in the special winning opening 101. Yes. Detection signals from the big prize opening sensor 111, the probability variation V sensor 112 and the continuation V sensor 113 are input to the main control unit 41.

  The main control unit 41 is connected with a probability changing movable member driving unit 67 that displaces the probability changing movable member 105 between a difficult posture (see FIG. 21A) and an easy posture (see FIG. 21B) as a control target.

  FIG. 23 is a diagram showing a function processing unit substantially included in the main control unit shown in FIG.

  In FIG. 23, parts corresponding to the respective parts shown in FIG. 22 are denoted by the same reference numerals as those of the respective parts. In the following description, the description of the parts with the same reference numerals is omitted.

The main control unit 41 includes a first special figure random number obtaining unit 81, a second special figure random number obtaining unit 82, a general figure random number obtaining unit 83, and a special figure as function processing units realized by software by program processing by the CPU 43. In addition to the random number determination unit 84, the regular random number determination unit 85, the jackpot symbol determination unit 86, the jackpot game execution unit 87, the next round permission unit 90, the probability variation / normal mode setting unit 91 and the time / non-time reduction mode setting unit 92, A posture pattern setting unit 93 is substantially included.
<Attitude pattern setting unit>

  24 and 25 are setting tables used for setting the posture pattern of the probability variation movable member.

  The ROM 44 of the main control unit 41 stores a setting table T3 shown in FIG. 24 and a setting table T4 shown in FIG. The setting table T3 stores the posture pattern of the probability variation movable member 105 in association with each big hit symbol 1-16. In the setting table T4, the posture pattern of the probability variation movable member 105 is stored in association with the big hit symbol 17.

  When a big hit is made in the first special drawing lottery, the posture pattern setting unit 93 refers to the setting table T3 shown in FIG. 24 and based on the big hit symbols 1 to 16 determined by the big hit symbol determination unit 86, The posture pattern of the probability changing movable member 105 in the big hit game with respect to the big hit is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 1, the probability variation movable member 105 makes a difficult posture in each round of the first to fifteenth rounds, and in the sixteenth round A posture pattern in which the probability variation movable member 105 takes an easy posture is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 2, the probability variation movable member 105 has a difficult posture in each round of the first to fourteenth rounds. A posture pattern in which the probability variation movable member 105 makes an easy posture in a round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 3, the probability variation movable member 105 has a difficult posture in each of the first to thirteenth rounds, and the fourteenth to sixteenth A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 4, the probability variation movable member 105 takes a difficult posture in each round of the first to twelfth rounds, and the thirteenth to sixteenths. A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 5, the probability variation movable member 105 has a difficult posture in each of the first to eleventh rounds, and the twelfth to sixteenth. A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 6, the probability variation movable member 105 takes a difficult posture in each round of the first to tenth rounds, A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 7, the probability variation movable member 105 has a difficult posture in each of the first to ninth rounds, and the tenth to sixteenth. A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 8, the probability variation movable member 105 takes a difficult posture in each round of the first to eighth rounds, and the ninth to sixteenth A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 9, the probability variation movable member 105 has a difficult posture in each of the first to seventh rounds, and the eighth to sixteenth. A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 10, the probability variation movable member 105 has a difficult posture in each of the first to sixth rounds, and the seventh to sixteenth A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 11, the probability variation movable member 105 takes a difficult posture in each of the first to fifth rounds, and the sixth to sixteenth A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 12, the probability variation movable member 105 has a difficult posture in each round of the first to fourth rounds, A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 13, the probability variation movable member 105 has a difficult posture in each of the first to third rounds, and the fourth to sixteenth. A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 14, the probability variation movable member 105 takes a difficult posture in each of the first and second rounds, and the third to sixteenth A posture pattern in which the probability variation movable member 105 takes an easy posture in each round is set.

  When it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 15, the probability variation movable member 105 takes a difficult posture in the first round, and in each round of the second to sixteenth rounds. A posture pattern in which the probability variation movable member 105 takes an easy posture is set.

  If it is determined that the first special symbol displayed on the first special symbol display device 7 is the jackpot symbol 16, a posture pattern in which the probability variation movable member 105 takes an easy posture is set in each round of the first to sixteenth rounds. The

When a big hit comes out in the second special drawing lottery, the opening pattern setting unit 88 refers to the setting table T4 shown in FIG. 25, and the posture pattern of the probability changing movable member 105 stored in association with the big hit symbol 17 is stored. Is set. That is, the posture pattern in which the probability variation movable member 105 takes an easy posture is set in each of the first to sixteenth rounds.
<Pachinko game>

  When the normal game on the pachinko machine 1 progresses and a big hit is made in the first special drawing lottery, the first special symbol (hit symbol) representing the big hit is displayed on the first special drawing display device 7 and also represents the big hit The effect image is displayed on the effect display device 5. Prior to the start of the big hit game, for example, a navigation message “Right-hand!” Is displayed on the effect display device 5 in order to prompt the player to turn the handle to the maximum, so-called right-handed.

  When the right strike is performed, the game ball falls on the right side of the center unit 4. Due to the gauge configuration, a part of the game ball that falls on the right side of the center unit 4 passes through the open gate 13 and the normal gate 11 continuously.

  When the game ball passes through the open gate 13, a big hit game is started.

  Below, the case where the big hit symbol 1 is displayed on the 1st special figure display apparatus 7 as an example is assumed.

  At the start of the big hit game, for example, a navigation message such as “If you finish to the 16th round is surely confirmed!” Or “If you finish to the goal is surely confirmed!” Is displayed on the effect display device 5.

  In the big hit game, the grand prize winning opening 101 is opened at least twice. Further, in each round after the second round, when the game ball passes through the round continuation zone 104 in the big winning opening 101, the big winning opening 101 is opened up to 16 times (see FIG. 24). In the first to fifteenth rounds, the probability variation movable member 105 is in a difficult posture. Then, when the game ball passes through the round continuation zone 104 in the big winning opening 101 in the fifteenth round, the probability variation movable member 105 takes an easy posture in the sixteenth round. When the probability variation movable member 105 takes an easy posture, the probability that the game ball that has entered the special winning opening 101 passes the probability variation transition zone 103 is about 100%. Therefore, as the player approaches the final sixteenth round, the player increases his expectation for entering the probability change mode.

  After the big hit game ends, the probability variation mode and the time reduction mode are set. While the time reduction mode is set, the player makes a right turn.

  When a game ball that falls on the right side of the center unit 4 passes through the general gate 11, a general lottery is performed. In the regular drawing lottery in the short-time mode, the winning comes out with a high probability, so the electric chute 9 opens and closes frequently, and game balls frequently win the second starting port 8. Accordingly, in the time reduction mode, normally, there is a state where there is one or more second special figure hold, the second special figure lottery is repeatedly performed, and the second special symbol representing the result of the second special figure lottery is the second special figure. One after another is displayed on the display device 10.

  In the probability variation mode and the time reduction mode, the total number of times the first special symbol is displayed on the first special figure display device 7 and the second special symbol is displayed on the second special figure display device 10 reaches 100 times. (Normally, until the second special symbol is displayed 100 times on the second special symbol display device 10).

  When a big hit is made in the second special drawing lottery in the probability variation / short time mode in which the probability variation mode and the time reduction mode are set, the big special symbol 17 is displayed on the second special figure display device 10, so the big hit game for the big hit Then, the probability variation movable member 105 takes an easy posture in each of the first to sixteenth rounds. Therefore, after the big hit game is over, the player enters the probability change / short time state again.

On the other hand, the number of times the first special symbol is displayed on the first special symbol display device 7 and the number of times the second special symbol is displayed on the second special symbol display device 10 without a big hit in the second special symbol lottery. When the total reaches 100 times, the probability variation mode and the time reduction mode are terminated, and the normal mode and the non-time reduction mode are entered (the normal / non-time reduction mode is set). In the non-short-time mode, the player strikes left and aims to enter the game ball into the first starting port 6.
<Effect>

Also with the above configuration, the same effects as the configuration of the first embodiment can be achieved.
<Modification 4>

  FIGS. 26A, 26B, and 26C are front views schematically illustrating another configuration within the special winning opening.

  In FIGS. 26A, 26B, and 26C, portions corresponding to the portions shown in FIGS. 21A and 21B are denoted by the same reference numerals as those portions. In the following description, the description of the parts with the same reference numerals is omitted.

  In the big prize opening 101, the round continuation zone 104 and the probability variation transition zone 103 are spaced apart from each other in the vertical direction below the zone 121 where the passing of the game ball can be detected by the big prize opening sensor 111 (see FIG. 22). They are arranged side by side.

  A continuous movable member 122 is provided between the zone 121 and the round continuation zone 104. The continuously movable member 122 is displaced into a blocking posture (see FIG. 26C) that prevents the game ball that has passed through the zone 121 from passing through the round continuation zone 104 and an allowable posture (see FIGS. 26A and 26B) that allows the passage. .

  Further, a probability variation movable member 123 is provided between the round continuation zone 104 and the probability variation transition zone 103. The probability variation movable member 123 is displaced into a blocking posture (see FIGS. 26B and 26C) that prevents the game ball that has passed through the round continuation zone 104 from passing through the probability variation transition zone 103 and an allowable posture (see FIG. 26A) that allows the passage. Is done.

  In the state shown in FIG. 26A, both the continuous movable member 122 and the probability variation movable member 123 are in the allowable posture. In this state, the game ball that has passed through the zone 121 passes through the round continuation zone 104 and the probability change transition zone 103 in this order with a probability of 100%.

  In the state shown in FIG. 26B, the continuous movable member 122 has an allowable posture, and the probability variation movable member 123 has a blocking posture. In this state, the game ball that has passed through the zone 121 passes through the round continuation zone 104 with a probability of 100%, but does not pass through the probability transition zone 103 with a probability of 100%.

  In the state shown in FIG. 26C, both the continuous movable member 122 and the probability variation movable member 123 are in the blocking posture. In this state, the game ball that has passed through the zone 121 does not pass through the round continuation zone 104 and the probability variation transition zone 103 with a probability of 100%.

  When this configuration is adopted, for example, when the jackpot symbol 1 (see FIG. 24) is displayed on the first special chart display device 7, the rounds 1 to 15 in the jackpot game are shown in FIG. 26B. The postures of the continuously movable member 122 and the probability-changing movable member 123 are such that the time for making the state is the longest, the time for making the state shown in FIG. 26C is the next longest, and the time for making the state shown in FIG. Be controlled. Further, in the sixteenth round, the time for forming the state shown in FIG. 26A is the longest, the time for forming the state shown in FIG. 26B is the next longest, and the time for forming the state shown in FIG. The postures of the continuously movable member 122 and the probability variation movable member 123 are controlled.

  This also improves the probability that a game ball enters the probability change transition zone 103 in the sixteenth round, compared to the probability that the game ball enters the probability change transition zone 103 in the first to fifteenth rounds.

Note that the sixteenth round may be in the state shown in FIG. 26A during the round.
<Modification 5>

  In the pachinko machine 1 shown in FIG. 20, each round from one or more rounds to the previous round of the round in which the probability variation movable member 105 makes an easy posture is set as a short-time opening round, and the short-time opening is performed. The opening time of the big winning opening 101 in the round may be set shorter than the opening time of the big winning opening 101 in the other rounds.

  Thereby, there can exist an effect similar to the effect mentioned regarding the modification 3.

  As mentioned above, although two embodiment of this invention and those modifications were described, this invention can also be implemented with another form.

  For example, the number of times the first special symbol is displayed on the first special symbol display device 7 and the number of times the second special symbol is displayed on the second special symbol display device 10 without a big win in the second special symbol lottery. When the total reaches 100 times, the mode is changed from the probability variation mode to the normal mode. However, the present invention is not limited to this, and a falling lottery that determines whether or not to shift from the probability variation mode to the normal mode every time the first special diagram lottery or the second special diagram lottery is executed while the probability variation mode is set. Is executed, and in response to winning the falling lottery, the normal mode may be shifted from the probability variation mode. In addition, when the number of times of setting the probability variation mode reaches a predetermined number, after the subsequent big hit game is finished, the normal mode is set regardless of whether or not the game ball has passed to the probability variation transition zones 24, 35, and 103. It may be set.

  In addition, various design changes can be made to the above-described configuration within the scope of the matters described in the claims.

1 Pachinko machine 5 Production display device (notification means)
6 First start port 9 Electric Chu (switching device)
13 Open gate (game start gate)
14 1st Grand Prize Exit 15 2nd Grand Prize Exit 24 Probability Transition Zone 25 Round Continuation Zone 35 Probability Transition Zone 36 Round Continuation Zone 81 First Special Figure Random Number Acquisition Unit (Big Bonus Lottery Execution Means)
82 2nd Special Figure Random Number Acquisition Unit (Big Bonus Lottery Execution Unit)
84 Special figure random number judgment part (Big hit lottery execution means)
86 jackpot symbol determination part (probability change probability improvement means)
87 jackpot game execution part (jackpot game execution means)
88 Opening pattern setting section (Probability change probability improvement means)
89 Opening time setting section (opening time setting means)
90th round permission section (next round permission means)
91 Probability / normal mode setting section (Probability / normal mode setting means)
92 Time reduction / non-time reduction mode setting section (time reduction / non-time reduction mode setting means)
101 Grand prize opening 103 Probability change zone 104 Round continuation zone 105 Probability change movable member

Claims (31)

The starting port,
The big prize opening,
A round continuation zone provided in the big prize opening;
Probability transition zone provided in the big prize winning mouth,
A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
In the jackpot game, on the condition of reaching a predetermined round, a probability change transition probability improving means for improving a probability that a game ball enters the probability change transition zone;
A special figure display device for displaying a special symbol representing the result of the jackpot lottery,
As the special symbol indicating that the result of the jackpot lottery is a jackpot, a jackpot symbol is prepared,
Wherein the predetermined rounds, the big hit symbol and is determined to correspond, pachinko machine. There are several types of jackpot symbols,
The pachinko machine according to claim 1 , wherein the predetermined round is determined in association with each jackpot symbol. The grand prize winners include a first grand prize winner and a second grand prize winner,
The round continuation zone is provided at the first grand prize opening,
The pachinko machine according to claim 1 or 2 , wherein the probability transition zone is provided at the second grand prize winning opening. The probability variation zone is provided in the first grand prize winning port and the second grand prize winning port,
The first grand prize opening and the second big prize opening are such that a game ball entering the probability variation transition zone of the first grand prize opening is a game ball entering the probability variation transition zone of the second grand prize opening. The pachinko machine according to claim 3 , which is designed to be more difficult than entering a ball.   The starting port,
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, including the probability change transition probability improving means for improving the probability that a game ball enters the probability change transition zone on condition that a predetermined round is reached,
  The grand prize winners include a first grand prize winner and a second grand prize winner,
  The round continuation zone is provided at the first grand prize opening,
  The probability variation zone is provided in the first grand prize winning port and the second grand prize winning port,
  The first grand prize opening and the second big prize opening are such that a game ball entering the probability variation transition zone of the first grand prize opening is a game ball entering the probability variation transition zone of the second grand prize opening. A pachinko machine designed to be more difficult than entering a ball. In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
In the jackpot game, the probability variation transition probability improving means determines the first big prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and in the predetermined round The pachinko machine according to any one of claims 3 to 5 , wherein the second big prize opening is determined as the opening.   In the jackpot game, each round from one or more previous rounds to the previous round is defined as a short open round, and rounds other than the short open round are defined as long open rounds. An opening time setting means for setting the opening time of the first big prize opening in the opening round to a relatively short time and setting the opening time of the first big winning opening in the long opening round to a relatively long time. The pachinko machine according to claim 6, further comprising:   The starting port,
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, including the probability change transition probability improving means for improving the probability that a game ball enters the probability change transition zone on condition that a predetermined round is reached,
  The grand prize winners include a first grand prize winner and a second grand prize winner,
  The round continuation zone is provided at the first grand prize opening,
  The probability transition zone is provided at the second grand prize opening,
  In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
  In the jackpot game, the probability variation transition probability improving means determines the first big prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and in the predetermined round , Determine the second grand prize opening as the opening,
  In the jackpot game, each round from one or more previous rounds to the previous round is defined as a short open round, and rounds other than the short open round are defined as long open rounds. An opening time setting means for setting the opening time of the first big prize opening in the opening round to a relatively short time and setting the opening time of the first big winning opening in the long opening round to a relatively long time. In addition, a pachinko machine. The pachinko machine according to any one of claims 3 to 8 , wherein the round continuation zone is provided at the first grand prize winning port and the second grand prize winning port.   The starting port,
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, including the probability change transition probability improving means for improving the probability that a game ball enters the probability change transition zone on condition that a predetermined round is reached,
  The grand prize winners include a first grand prize winner and a second grand prize winner,
  The probability transition zone is provided at the second grand prize opening,
  The round continuation zone is a pachinko machine provided at the first grand prize winning port and the second grand prize winning port.   In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
  In the jackpot game, the probability variation transition probability improving means determines the first big prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and in the predetermined round The pachinko machine according to claim 10, wherein the second big prize opening is determined as the opening. In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
In the jackpot game, the probability change probability improving means determines the first winning prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and after the predetermined round The pachinko machine according to any one of claims 9 to 11 , wherein, in each round, the second big prize opening is determined as the opening. Provided in the large winning opening, a difficult posture that makes it relatively difficult for a game ball to enter the probability variation transition zone, and an easy posture that makes it easier for a game ball to enter the probability variation transition zone Further includes a variable displacement movable member that is displaceable,
In the jackpot game, the probability variation transition probability improving means displaces the probability variation movable member to the difficult posture in each round from a first round to a round immediately before the predetermined round, and in the predetermined round, The pachinko machine according to claim 1 or 2 , wherein the probability-variable movable member is displaced to the easy posture.   The starting port,
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, on the condition of reaching a predetermined round, a probability change transition probability improving means for improving a probability that a game ball enters the probability change transition zone;
  Provided in the large winning opening, a difficult posture that makes it relatively difficult for a game ball to enter the probability variation transition zone, and an easy posture that makes it easier for a game ball to enter the probability variation transition zone Including a variable displacement movable member that can be displaced to
  In the jackpot game, the probability variation transition probability improving means displaces the probability variation movable member to the difficult posture in each round from a first round to a round immediately before the predetermined round, and in the predetermined round, A pachinko machine that displaces a probable moving member to the easy posture. The pachinko machine according to claim 13 or 14 , wherein the probability variation transition probability improving means displaces the probability variation movable member to the easy posture in each round after the predetermined round. Displaced into a posture that is provided in the big prize opening and makes it relatively difficult for a game ball to enter the round continuation zone and a posture that makes it relatively easy to enter a game ball into the round continuation zone The pachinko machine according to any one of claims 13 to 15 , further comprising a possible continuously movable member. In the jackpot game, each round from one or more previous rounds to the previous round is defined as a short open round, and rounds other than the short open round are defined as long open rounds. An opening time setting means for setting the opening time of the big prize opening in the opening round to a relatively short time and setting the opening time of the big winning opening in the long opening round to a relatively long time; The pachinko machine according to any one of claims 13 to 16 . It further includes a jackpot game start gate through which game balls can pass,
The pachinko machine according to any one of claims 1 to 17 , wherein the jackpot game execution means starts the jackpot game in response to a game ball passing through the jackpot game start gate.   The starting port,
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, on the condition of reaching a predetermined round, a probability change transition probability improving means for improving a probability that a game ball enters the probability change transition zone;
  Including a jackpot game start gate through which game balls can pass,
  The pachinko machine, wherein the jackpot game execution means starts the jackpot game in response to a game ball passing through the jackpot game start gate.   The grand prize winners include a first grand prize winner and a second grand prize winner,
  The round continuation zone is provided at the first grand prize opening,
  The pachinko machine according to claim 19, wherein the probability transition zone is provided at the second grand prize opening.   In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
  In the jackpot game, the probability variation transition probability improving means determines the first big prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and in the predetermined round The pachinko machine according to claim 20, wherein the second grand prize winning port is determined as the open port. The start port includes a first start port and a second start port,
An opening / closing device displaceable between an open posture for guiding the winning of the game ball to the second starting port and a closed posture for preventing the winning of the game ball to the second starting port;
If a game ball enters the probability transition zone during the jackpot game, it is relatively easy to win the game ball to the second starting port for a predetermined short time period after the jackpot game ends. The time-saving mode in which the switchgear operates is set in such a manner that the switchgear is in a mode in which it is relatively difficult to win a game ball to the second start port during a non-time-short period other than the time-shortened period. The pachinko machine according to any one of claims 1 to 21 , further comprising a time reduction / non-time reduction mode setting means for setting a non-time reduction mode to operate.   A start port including a first start port and a second start port;
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, on the condition of reaching a predetermined round, a probability change transition probability improving means for improving a probability that a game ball enters the probability change transition zone;
  An opening / closing device displaceable between an open posture for guiding the winning of the game ball to the second starting port and a closed posture for preventing the winning of the game ball to the second starting port;
  If a game ball enters the probability transition zone during the jackpot game, it is relatively easy to win the game ball to the second starting port for a predetermined short time period after the jackpot game ends. The time-saving mode in which the switchgear operates is set in such a manner that the switchgear is in a mode in which it is relatively difficult to win a game ball to the second start port during a non-time-short period other than the time-shortened period. A pachinko machine including a time reduction / non-time reduction mode setting means for setting a non-time reduction mode to operate.   The grand prize winners include a first grand prize winner and a second grand prize winner,
  The round continuation zone is provided at the first grand prize opening,
  The pachinko machine according to claim 23, wherein the probability transition zone is provided at the second grand prize winning opening.   In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
  In the jackpot game, the probability variation transition probability improving means determines the first big prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and in the predetermined round The pachinko machine according to claim 24, wherein the second big prize opening is determined as the opening. The pachinko machine according to any one of claims 1 to 25 , further comprising an informing means for informing which round the predetermined round is.   The starting port,
  The big prize opening,
  A round continuation zone provided in the big prize opening;
  Probability transition zone provided in the big prize winning mouth,
  A jackpot lottery execution means for performing a jackpot lottery in response to a winning of a game ball at the start opening;
  A jackpot game executing means for executing a jackpot game in which the action is repeated up to the maximum round, with the action of opening the jackpot for a predetermined period as a round for the jackpot in the jackpot lottery,
  Next round permission means for permitting the operation of the next round in the jackpot game on condition that the game ball enters the round continuation zone;
  When there is a game ball entering the probability change transition zone during the jackpot game, after the jackpot game is finished, set a probability change mode with a relatively high probability of jackpot lottery in the jackpot lottery, When there is no game ball entering the probability change transition zone during the big hit game, a probability mode / normal mode in which a normal mode in which the probability of a big hit in the big hit lottery is relatively low is set after the big hit game ends. Mode setting means;
  In the jackpot game, on the condition of reaching a predetermined round, a probability change transition probability improving means for improving a probability that a game ball enters the probability change transition zone;
  A pachinko machine including notification means for informing which round the predetermined round is.   The grand prize winners include a first grand prize winner and a second grand prize winner,
  The round continuation zone is provided at the first grand prize opening,
  28. The pachinko machine according to claim 27, wherein the probability transition zone is provided at the second grand prize opening.   In the jackpot game, in each round, one of the first big prize opening and the second big prize opening is opened as an opening,
  In the jackpot game, the probability variation transition probability improving means determines the first big prize opening as the opening in each round from the first round to the round immediately before the predetermined round, and in the predetermined round The pachinko machine according to claim 28, wherein the second grand prize winning opening is determined as the opening opening. 30. The pachinko machine according to any one of claims 26 to 29, wherein the notification by the notification means is performed at the start or midway of the jackpot game. The pachinko machine according to any one of claims 26 to 30 , further comprising false notification means for reporting a round different from the actual predetermined round as the predetermined round.

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