JP4873835B2 - Slot machine - Google Patents

Description

  The present invention relates to a slot machine, and more particularly to control of so-called RT (Replay Time) that increases the probability of winning a replay.

  The slot machine generally includes a variable display device having a plurality of reels on which a plurality of types of symbols are drawn on the outer peripheral portion, and a winning is generated according to a display mode when rotation of each reel is stopped. When a prize other than replay occurs, medals are paid out according to the type of the awarded prize, and the number of medals earned by the player increases. Furthermore, depending on the type of winning, the game state is shifted to a game state advantageous to the player, such as a big bonus or a regular bonus, and the player can acquire many medals in such a game state.

  Here, in order for a winning to occur, it is usually necessary to win an internal lottery performed before the display result is derived and displayed on the variable display device, and the winning flag needs to be set. Since the winning probability of this internal lottery varies depending on the number of bets set by the player in each game, the player's involvement will work here. Also, just because an internal lottery is won and the winning flag is set does not necessarily win, and the reel must be stopped at a timing at which the symbol of the combination can be derived. Again, the technical involvement of the player will work. And, it is assumed that the playability is enhanced by the involvement of such a player and the interest of the game is improved.

  Some slot machines have a gaming state advantageous to the player in addition to the big bonus and the regular bonus in order to increase the change in the progress of the game and improve the interest of the game. As a gaming state advantageous to such a player, an AT (Assist Time) for notifying an operating procedure of a stop button for winning a small winning combination internally won, and a CT (Challenge Time) for controlling the stop of a reel without control In addition, there is RT (Replay Time) in which the winning probability other than replay is not changed from the normal gaming state in the internal lottery, and the winning probability only for replay is higher than that in the normal gaming state.

  Here, RT in the conventional slot machine generally shifts after the big bonus ends (see, for example, Patent Document 1). In addition to the RT, there is a slot machine that has a gaming state such as AT, CT, etc., and is shifted to one by lottery after the end of the big bonus (for example, see Patent Document 2). Furthermore, there is a slot machine that determines the number of games for which RT entry lottery is performed after the end of the big bonus, and shifts to RT if the RT entry lottery is won during this time (see, for example, Patent Document 3).

JP 2002-301194 A JP 2002-172206 A JP 2002-360787 A

  However, in the slot machines of Patent Documents 1 to 3, none of the players can be involved in the determination regarding the occurrence of RT, and the gameability due to the player's involvement has not been realized at all. I couldn't improve the fun of the game enough.

  The present invention relates to a slot machine that enhances the fun of gaming by allowing a player to participate in the occurrence of a specific gaming state (so-called RT) in which the probability of allowing the derivation of a re-game display result is higher than that of a normal gaming state The purpose is to provide.

To achieve the above object, a slot machine according to the present invention includes:
The number of bets in multiple modes (1, 2, 3) can be set for one game, and the game can be started by setting the number of bets in any of these modes, and each can be identified. One game is completed when a display result is derived to a variable display device (variable display device 2) that variably displays a plurality of types of identification information, and a predetermined prize can be generated according to the display result of the variable display device. In a slot machine,
The payout rate indicating the ratio of the valuable value given to the player with respect to the bet amount when the bet number of the first mode is set among the bet numbers of the plurality of modes is smaller than the bet number of the first mode It is determined to be higher than the payout rate when the bet number of the second mode is set (FIGS. 5A and 5B), and before the display result of the variable display device is derived, In accordance with a predetermined payout rate, a winning display result including a re-game display result (replay) accompanied by a re-game that can be played without using a valuable value that can be used for setting the bet amount is displayed. Pre-determining means (steps S101 to S107) for determining whether or not to allow derivation;
Fluctuation stop control means (step S5) for causing the variable display device to derive a display result by stopping the fluctuation display of the identification information according to the determination result of the prior determination means;
A specific gaming state (RT) in which the probability that the derivation of the replay display result is allowed to be higher than the normal gaming state without changing the probability that the predetermination means permits the derivation of the winning display result other than the regame display result is changed. ) Specific gaming state determination means (steps S101, S102, S105 to S107) for determining whether or not to control,
Specific game state control means (steps S210, S211) for controlling the game state to the specific game state according to the determination by the specific game state determination means,
The specific gaming state determination means has a first determination probability and a second determination probability higher than the first determination probability when the bet number of the second aspect is set in a predetermined specific period. Specific period state specific gaming state determination means for determining whether or not to control the gaming state to the specific gaming state according to the second determination probability (FIG. 5-in the case of a chance game with 1 bet),
In the game in which the bet number of the second mode in the specific period is set, the prior determination unit determines that the specific game state determination unit controls the specific game state, and the specific game state is determined based on the determination. when it is controlled to the playing state, sets the number of bets the second embodiment during the betting amount of the second aspect of the specific time period that is controlled to the specific game state that is later than the set game Even if the game is played with the number of bets in the first mode set instead of the above, the specific game state is maintained and the replay display result can be derived with a higher probability than the normal game state. (Fig. 5)
It is characterized by that.

In the slot machine, the specific gaming state (so-called RT) that increases the probability that the pre-determining means allows the derivation of the re-game display result is generated according to the determination by the specific gaming state determining means. Here, the specific gaming state determination means increases the determination probability for determining to control to the specific gaming state by following the second determination probability when the bet number of the second mode is set in the specific period. ing. That is, the player can be involved in the occurrence of a specific gaming state by changing the number of bets set for one game, and the gaming property is enhanced. Moreover, in the specific period, even if the number of bets of the second mode with a low payout rate is set, control to the specific gaming state becomes easy and advantageous as a result, so that the gaming property is enhanced. Thereby, the interest of a game can be improved.
In addition, even if the player sets the betting number of the second mode advantageous for generating the specific gaming state in the specific period, the betting of the first mode having a high payout rate in the specific gaming state generated thereafter. It is advantageous to set the number. As a result, the range of progress of the game is widened, and the game progress advantageous to the player can be realized by changing the progress method of the game according to the game state at that time.

  The specific gaming state determination means determines whether or not to control the specific gaming state according to the first determination probability when the bet number of the first mode is set even during the specific period or during the specific period. A decision can be made. Further, the first determination probability may be zero. That is, it is determined whether or not to control the specific gaming state only when the number of bets in the second mode is set in the specific period, and the first mode is not included in the specific period or even in the specific period. When the bet number is set, it is possible that the specific gaming state is not controlled.

In the above slot machine,
The pre-determining means further determines whether or not to allow a special display result (big bonus) with a game value other than a valuable value to be derived as the winning display result,
When the variable stop control means derives the special display result based on the determination result of the prior determination means, a special game state advantageous to a player that is different from the specific game state until a predetermined end condition is satisfied Special game state control means (steps S204 and S205) for controlling the game state may be further included in (big bonus). In this case,
The specific period may be a period of a predetermined number of games after the special gaming state ends (10 games after the end of the big bonus).

  In this way, it is determined to control to the specific game state by using the second determination probability storage means (or by following the second determination control) with the period of the predetermined game after the end of the special game state as the specific period. Therefore, an advantageous gaming state can be easily continued, and the player's sense of expectation can be enhanced and the interest of the game can be improved. The period of the predetermined number of games may be only one game or may be changed by determination.

The slot machine
Specific period notifying means (liquid crystal display 4, step S312) for notifying that it is the specific period may be further provided.

  In this case, it can be shown to the player in an easy-to-understand manner whether or not it is a specific period in which the determination probability of the specific game state is high.

In the above slot machine,
The specific game state determination means may determine whether or not to allow a specific display result (RT combination) with control to the specific game state to be derived as the winning display result. In this case,
The specific gaming state control means can control to the specific gaming state when the variation stop control means derives the specific display result based on the determination result of the specific gaming state determination means (step S210, S211).
The slot machine according to any one of claims 1 to 4, characterized in that:

  In this case, the player can be involved not only in setting the bet number for the occurrence of the specific gaming state but also in deriving the display result on the variable display device. Can be further increased, and the interest of the game can be improved.

  Here, the fluctuation stop control means stops the fluctuation display of the identification information in accordance with a predetermined condition (forward push with three bets) when the derivation of the specific display result is allowed by the predetermining means. When it is done, the specific display result can always be derived (symbol arrangement in FIG. 2).

  In this case, when the specific determination information is set, the specific display result can be always derived as long as the variation display of the identification information is stopped according to a predetermined condition. Will not be a disadvantage to the player.

Alternatively, in the slot machine, when the predetermining means determines permission for deriving the special display result, special determination information indicating permission for deriving the special display result is set, and the variable stop control When the means derives a special display result based on the special decision information, the slot machine
Specific determination information carry-over means for carrying over the specific determination information after the next game when the specific display result is not derived in the game in which the specific determination information is set by the prior determination means (step S313: small role winning) (Only the flag is deleted).

  In this case, even if it is not possible to derive the specific display result in a game for which the allowance for deriving the specific display result is determined, the specific display result is derived from the next game or later by carrying over the specific determination information. Therefore, the determination of the permission for deriving the specific display result is not wasted, and the player is not disadvantaged.

The slot machine is
A substrate (external) formed with a signal transmission path capable of connecting external connection means (external output terminal 150b) for outputting the decision information set by the prior decision means as a signal and outputting the signal to an external device An output substrate 105) may be provided.

  In this case, it becomes possible to connect the external connection means to the signal transmission path and output the decision information to the outside. For example, by outputting the derivable information from the external connection means to the test apparatus, it becomes possible to perform a simulation test based on the determination information in the test apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a front view showing the overall structure of the slot machine according to this embodiment. The front door of the slot machine 1 can be opened by inserting a key into the locking device 19 and rotating it clockwise. A variable display device 2 is provided on the upper front side of the slot machine 1. Inside the variable display device 2, a reel unit 3 including three reels 3L, 3C, and 3R is provided. The reels 3L, 3C, and 3R are rotated / stopped by driving the reel motors 3ML, 3MC, and 3MR (see FIG. 3), respectively.

  As shown in FIG. 2, “red 7”, “blue 7”, “BAR”, “JAC”, “watermelon”, “cherry”, “bell”, etc. are provided on the outer periphery of the reels 3L, 3C, 3R. A plurality of types of symbols that can be distinguished from each other are drawn in a predetermined order. In particular, in the reels 3C and 3R, “JAC” is arranged at intervals of 5 frames or less so as to be stopped at any of the upper, middle, and lower stages by the 4-frame pull-in control described later. Moreover, when this is the first reel to stop due to the arrangement of “red 7”, “blue 7”, and two “BARs” on the reel 3L, one of these stops at one of the upper, middle and lower stages. It is supposed to be made. However, the stop of the symbol is in accordance with the setting status of the winning flag described later.

  The symbols drawn on the outer peripheries of the reels 3L, 3C, and 3R are displayed on the variable display device 2 in the upper, middle, and lower three stages. In the reel unit 3, reel sensors 3SL, 3SC, and 3SR (see FIG. 3) for detecting the reference positions of the reels 3L, 3C, and 3R, and a reel lamp 3LP that irradiates light from the back surface. And are provided.

  Various display units are provided around the variable display device 2. Below the variable display device 2, a game number display unit 21, a credit display unit 22, and a payout display unit 23 are provided. The game number display unit 21 is configured by a game number display 51 (see FIG. 3) using a 7-segment display, and displays the value of a counter that counts the number of games and winnings at the time of a big bonus, regular bonus, or RT described later. . The game number display unit 21 may be used to display the value of a counter that counts the number of medals paid out during a big bonus, which will be described later.

  The credit display unit 22 is constituted by a credit display 52 (see FIG. 3) using a 7-segment display, and displays the number of credits accumulated as data according to the number of inserted medals and the number of paid-out coins as will be described later. The payout display unit 23 is composed of a 7-segment display payout display 53 (see FIG. 3), and displays the number of medals to be paid out when winning is achieved.

  On the left side of the variable display device 2, a one-bet display unit 24, two-bet display units 25 and 26, and three-bet display units 27 and 28 are provided. One piece, two pieces, and three pieces bet display sections 24 to 28 correspond to lines activated according to the number of bets (1, 2, or 3) (hereinafter referred to as valid lines), respectively. When the three betting lamps 54 to 58 (see FIG. 3) are turned on, the active line in each game is shown to the player. The 1-sheet, 2-sheet, 3-sheet betting display sections 24 to 28 are also configured so that the 1-sheet, 2-sheet, 3-sheet betting lamps 54-58 are in a blinking state when a winning combination to be described later is made, The active line that won the combination to be described later is shown to the player.

  On the right side of the variable display device 2, an insertion instruction display unit 29, a start display unit 30, a weight display unit 31, a replay display unit 32, and a game over display unit 33 are provided. The insertion instruction display unit 29 indicates that a medal can be inserted by turning on the insertion instruction lamp 59 (see FIG. 3). The start display unit 30 indicates that the start lamp 60 (see FIG. 3) is turned on, so that the start can be started, that is, the operation of the start lever 11 can be accepted. The weight display unit 31 indicates that a weight to be described later is applied when the weight lamp 61 (see FIG. 3) is turned on. The replay display unit 32 indicates that a replay winning that will be described later has been made when the replay lamp 62 (see FIG. 3) is turned on. The game over display unit 33 indicates that the slot machine 1 has been stopped by turning on the game over lamp 63 (see FIG. 3).

  On the upper side of the variable display device 2, a liquid crystal display 4 is provided as a production means. The liquid crystal display 4 displays various effect images according to the gaming state. Examples of the effect by the image displayed on the liquid crystal display 4 include an effect for notifying that a chance game, which will be described later, is in progress, and an effect for notifying that the RT winning flag is set. Further, the liquid crystal display 4 can display various information directly or indirectly related to the game.

  A medal slot 13, a single BET button 14, a MAXBET button 15, and a checkout button 16 are provided on a horizontal surface of a trapezoidal portion provided below the variable display device 2. The BET button lamps 70a and 70b (see FIG. 3), which are turned on when the number of bets can be set from the credits (maximum 50) accumulated as data, are arranged inside the single BET button 14 and the MAX BET button 15. Has been.

  The medal insertion slot 13 is for a player to insert a medal from here, and when the insertion medal sensor 44 detects the insertion of a medal when the insertion instruction unit 29 is lit, the number of bets is set. Alternatively, credits are accumulated as data. The single BET button 14 and the MAX BET button 15 are buttons operated by the player when setting the number of bets (1, 3 respectively) from the credits accumulated as data. When it is detected by the sheet BET switch 45 (see FIG. 3) or the MAXBET switch 46 (see FIG. 3), the bet number from the credit is set. The settlement button 16 is a button for instructing to pay out credits. When an operation is detected by the settlement switch 47 (see FIG. 3), medals corresponding to the credits accumulated as data are paid out.

  A start lever 11 and stop buttons 12L, 12C, and 12R are provided on the vertical surface of the trapezoidal portion. The start lever 11 is operated by the player when starting the game. When the operation is detected by the start switch 41 (see FIG. 3), the reel drive motors 3ML, 3MC, 3MR are started to be driven. 3L, 3C, and 3R start to rotate.

  The stop buttons 12L, 12C, and 12R are buttons that the player operates to stop the rotation of the reels 3L, 3C, and 3R at a desired timing, respectively, and the operations are stop switches 42L, 42C, and 42R (see FIG. 3). Is detected, the rotation of the reels 3L, 3C, 3R is stopped. The fact that the operation of the stop buttons 12L, 12C, 12R is possible is indicated to the player by turning on the operation effective lamps 63L, 63C, 63R (see FIG. 3) provided therein.

  Further, a panel that covers the stop buttons 12L, 12C, and 12R is applied as the bonus notification section 36. The bonus notification unit 36 notifies the player that the bonus winning described later is possible when the bonus notification lamp 66 (see FIG. 3) is turned on. Further, on the right side of the stop button 12R, there is provided a medal clogging elimination button 18 that mechanically vibrates the slot machine 1 when a medal is jammed.

  On the lower front side of the slot machine 1, a medal payout port 71 and a medal storage tray 72 are provided. The medal payout port 71 discharges medals paid out by the hopper 80 (see FIG. 3) to the outside. The medal storage tray 72 is for storing paid-out medals. The front panel on the medal storage tray 72 is irradiated with light emitted from the fluorescent lamp 6 (see FIG. 3) installed therein.

  Speakers 7U, 7L, and 7R are provided as rendering means on the lower front side of the slot machine 1 and on the left and right sides of the upper front side, respectively. The speakers 7U, 7L, and 7R output sound effects at the time of winning and bonus entry, output of alarm sound at the time of abnormality, and output of sound for various effects according to the gaming state.

  Further, on the front side of the slot machine 1, an effect by light is performed by light emission of game effect lamps 75 </ b> A to 75 </ b> M (see FIG. 3) as effect means so as to surround the variable display device 2 and the liquid crystal display 4. Game effect display sections 5A to 5M are provided. The game effect display units 5A to 5M perform effects by light in various patterns according to the progress of the game. Note that the light emission colors of the game effect display units 5A to 5M may be either single colors or multiple colors.

  FIG. 3 is a diagram showing the configuration of the control circuit of the slot machine 1. As shown in the figure, the control circuit of the slot machine 1 is roughly divided into a power supply board 100, a game control board 101, an effect control board 102, a reel relay board 103, a reel lamp relay board 104, and an external output board 105. .

  The power supply board 100 transforms an external power supply voltage of AC 100V and supplies operating power to the game control board 101 and other parts of the slot machine 1. In FIG. 3, only the game control board 101, the hopper 80, and the switches 91 to 94 are connected. However, the power supply board 101 also supplies power to other units. The power supply board 100 is provided in the slot machine 1 and is connected to a hopper 80 that includes a hopper motor 82 that performs a medal payout operation and a payout sensor 81 that detects a medal payout operation.

  The power supply board 100 sets a winning probability for an internal lottery to be described later, and a setting switch 91 and a setting switch 91 for changing setting values (setting 1 to setting 6) of medal payout rates calculated based on the probability. Are connected to a setting key switch 92 for enabling the operation, a second reset switch 93 for resetting the internal state (RAM 112), and a main switch 94 for switching the power ON / OFF, and detection of these switches. A signal is sent to the game control board 101. These switches 91 to 94 are provided inside the slot machine 1.

  The game control board 101 is a control board on the main side that controls the overall flow of the game in the slot machine 1, and includes a control unit 110 including a CPU 111, a RAM 112, a ROM 113, and an I / O port 114. It is installed. A random number generation circuit 115, a sampling circuit 116, and other circuits are mounted.

  The CPU 111 has a timekeeping function and a timer interrupt function, executes a program (described later) stored in the ROM 113 to perform processing related to the progress of the game, and directly or indirectly controls each part of the control circuit in the slot machine 1. To control. The RAM 112 is used as a work area when the CPU 111 executes a program. The ROM 113 stores programs executed by the CPU 111 and fixed data. The I / O port 114 inputs and outputs control signals to and from each circuit connected to the game control board 101.

  The random number generation circuit 115 is constituted by a counter that counts up and updates the value every time the system clock generates a predetermined number of pulses, for example, and the sampling circuit 116 acquires the numerical value counted by the random number generation circuit 115. . The random number generation circuit 115 is provided for each type of random number used for the progress of the game, and a range of numerical values to be counted for each type of random number is determined. The CPU 111 sends an instruction to the sampling circuit 116 according to the processing to acquire the numerical value indicated by the random number generation circuit 115 as a random number (hereinafter, this function is referred to as a hardware random number function).

  The CPU 111 also has a function of updating the numerical value of the specific address in the RAM 112 by timer interrupt processing and acquiring the updated numerical value as a random number (hereinafter, this function is referred to as a software random number function). The CPU 111 transmits various commands to the effect control board 102 via the I / O port 114 and outputs various signals to the external output board 105 via the reel relay board 103. Information (command, signal) is sent from the game control board 101 to the effect control board 102 and the external output board 105 in only one direction, and information (command, signal) is sent from the effect control board 102 and the external output board 105 to the game control board 101. Signal) is not sent.

  Connected to the game control board 101 are a single BET switch 45, a MAXBET switch 46, a start switch 41, stop switches 42L, 42C, 42R, a settlement switch 47, a first reset switch 48, and a throw-in medal sensor 44. Detection signals from the switches / sensors are input. In addition, detection signals of the reel sensors 3SL, 3SC, and 3SR are input via the reel relay substrate 103. In accordance with the detection signals of these switches / sensors input via the I / O port 114 or the detection signals of various switches input via the power supply board 100 as described above, the CPU 111 on the game control board 101 Processing is in progress.

  The game control board 101 also includes a flow path switching solenoid 49, a game number display 51, a credit display 52, a payout display 53, a loading instruction lamp 59, a single betting lamp 54, two betting lamps 55, 56, Three betting lamps 57 and 58, a game over lamp 63, a start lamp 60, a replay lamp 62, BET button lamps 70a and 70b, and operation valid lamps 63L, 63C, and 63R are connected, and the CPU 111 follows the progress of the game. These operations are controlled.

  The game control board 101 is connected to reel motors 3ML, 3MC, and 3MR via a reel relay board 103. The CPU 111 refers to the reel control table corresponding to the gaming state in the ROM 113, controls the reel motors 3ML, 3MC, and 3ML via the reel relay board 103, and stops the reels 3L, 3C, and 3R.

  The effect control board 102 is a sub-side control board that controls the execution of effects in the slot machine 1, and is equipped with a control unit 120 including a one-chip microcomputer including a CPU 121, a RAM 122, a ROM 123, and an I / O port 124. Yes. In addition, the random number generation circuit 125 and the sampling circuit 126 are mounted, and the CPU 121 obtains the value counted by the random number generation circuit 125 by the sampling circuit 126, so that the hardware random number function similar to that of the game control board 101 is obtained. Is forming. It also has a software random number function by interrupt processing.

  The CPU 121 executes a program (described later) stored in the ROM 123 to perform processing related to the execution of the effect, and controls each circuit in the effect control board 102 and each circuit connected thereto. The performance is executed based on a command received from the game control board 101 via the buffer circuit 127 and the I / O port 124. The RAM 122 is used as a work area when the CPU 121 executes a program. The ROM 123 stores programs executed by the CPU 121 and fixed data. The I / O port 124 inputs and outputs control signals to and from each circuit connected to the effect control board 102.

  The effect control board 102 is connected with game effect lamps 75A to 75M, a liquid crystal display 4, speakers 7L, 7R, and 7U, a fluorescent lamp 6, a weight lamp 61, and a bonus notification lamp 66. A reel lamp 3LP is connected via a reel lamp relay substrate 104. The control unit of the effect control board 102 performs these effects by controlling these parts.

  The reel relay board 103 relays between the game control board 101, the external output board 105 and the reel unit 3. The reel relay substrate 103 is also connected with a full sensor 90, and its detection signal is input. The full tank sensor 90 is provided inside the slot machine 1 and detects that the medals in the overflow tank storing the medals overflowed from the hopper 80 are full. The reel lamp relay board 104 relays between the effect control board 102 and the reel unit 3.

  The external output board 105 outputs various signals input via the game control board 103 to an external device such as a test device or a hall management computer. FIG. 4 is a diagram showing the configuration of the external output board 105 in detail. The external output board 105 is composed of a main part 105a and a sub-part 105b that can be cut off and removed. The main part 105a and the sub part 105b are provided with external output terminals 150a and 150b, respectively. By connecting an external device to the external output terminals 150a and 150b, various signals can be output to the external device.

  The signals input from the game control board 101 via the reel relay board 103 and output to the outside of the external output board 105 include a regular bonus medium signal, a big bonus medium signal, an RT signal, a reel control signal, and a stop switch signal. , A medal IN signal, a medal OUT signal, and a winning status signal. Among these, only the transmission path (wiring) of the winning status signal is connected to the external output terminal 150b of the sub part 105b, and the other signal transmission path (wiring) is connected to the external output terminal 150a of the main part 105a. ing.

  In the test before market introduction, the external output board 105 is used without breaking the sub-part 105b, and the regular bonus medium signal, big bonus medium signal, RT signal, reel control signal, stop switch signal, medal IN The signal, the medal OUT signal, and the winning status signal can be output from the respective transmission lines to the test apparatus via the external output terminals 150a and 150b.

  However, at the time of market entry, the sub-part 105b is broken, and the transmission path of the winning status signal is not connected to the external output terminal 150b. That is, only a regular bonus signal, a big bonus signal, an RT signal, a reel control signal, a stop switch signal, a medal IN signal, and a medal OUT signal whose transmission path is connected to the external output terminal 150a of the main unit 105a. Can be output to the hall management computer.

  In the slot machine 1, a winning is awarded when the symbols are arranged on the active line set according to the betting number of the variable display device 2. In order to win a prize, it is necessary to win an internal lottery and to set the internal winning flag of the combination. Also, medals are paid out in accordance with winning, and the gaming state is changed. FIG. 5 is a table showing the types of winning combinations determined in this slot machine 1 and the winning probabilities in the respective internal lotteries. The winning probability in the internal lottery varies depending on the set value and the bet number, and a table is prepared for each set value and bet number.

  In the normal gaming state (including the chance game) or during RT, when three “BARs” are aligned on the active line according to the number of bets, a regular bonus is awarded and the gaming state shifts to a regular bonus. . The regular bonus is a game called a regular bonus game (JAC game) that is performed a predetermined number of times (for example, 12 times) or a predetermined number of times (for example, 8 times) ("JAC" is displayed on the active line). Complete: JAC prize). The RAM 112 of the game control board 101 is provided with a counter for counting the number of regular bonus games and the number of winnings. When shifting to the regular bonus, the regular bonus flag is set in the RAM 112.

  If you have 3 “Red 7” or 3 “Blue 7” on the active line according to the number of bets in the normal gaming state (including the chance game) or RT, you will win a big bonus. , The gaming state shifts to a big bonus. In the big bonus, a small role game in which “JAC” is arranged on the active line with a relatively high probability (JACIN winning) is provided, and when the JACIN winning is awarded, the regular bonus (JAC game) described above is provided.

  The big bonus ends when the number of medals paid out during the period reaches 360. The RAM 112 of the game control board 101 is provided with a counter that counts the number of medals paid out during the big bonus. When shifting to the big bonus, a big bonus medium flag is set in the RAM 112. When a JAC game is provided by JACIN, a regular bonus medium flag is also set.

  After the big bonus is over, a chance game lottery with a winning probability of 1/2 is performed on condition that the number of bets at the time of winning the big bonus is three. When the chance game lottery is won, 10 is set in the chance game counter of the RAM 112, and a chance game described later is provided when the value of the counter is 1 or more. The value of the chance game counter is decremented by 1 when one game is consumed. If the bet number is 3 or 2, the chance game does not change from the normal gaming state, but if the bet number is 1, the RT winning probability increases as will be described later.

  In a normal gaming state (including during a chance game), if “Red 7 or Blue 7 or BAR-JAC-JAC” is aligned on the active line according to the number of bets, an RT prize will be awarded and the gaming state will be RT Migrate to In RT, the winning probability of the other role (except RT itself) is not changed from the normal gaming state, and only the winning probability of replay is increased. RT ends when the predetermined game is digested. The RAM 112 of the game control board 101 is provided with a counter for counting the number of games during RT. When shifting to RT, an RT flag is set in the RAM 112.

  In games other than the regular bonus game or JAC game, when “watermelon” or “bell” appears on the active line, or “cherry” appears on the left reel 3L, the watermelon, bell, and cherry Small role winning. If “JAC” is available on the active line, except for the small role game, JAC game, and regular bonus game provided during the big bonus period, a replay win is awarded. When other display modes are derived and displayed on the variable display device 2, no winning combination has been won, that is, the game is lost.

  In this embodiment, “small role” includes not only a watermelon, bell, cherry small role and group small role, but also a replay or the like (replay, JAC and JACIN) in the case specifically described. There shall be. In the case of simply “bonus”, it includes a big bonus and a regular bonus, and in the case of being specifically described, it may include RT. The same applies not only to the type of combination but also to the case of winning or winning flags.

  When there is a winning combination as described above, the number of medals corresponding to each winning combination is paid out (except for the case where the winning combination is 50 until the number of credits reaches 50). A corresponding number of credits are accumulated as data, and in this case as well, medals are paid out as valuable value). In addition, the number of medals to be paid out is 15 in all cases, except that there are 8 bell small roles and 2 cherry small roles. In the case of a replay winning, the same bet number as the current game is automatically set and the game is started as it is, even if the player does not set the bet number from the medal or credit on hand in the next game. Is possible.

  Next, the internal lottery will be described. In the internal lottery, whether or not a winning for each combination described later is permitted is determined before the display result is derived and displayed on the variable display device 2 (actually, when the start lever 11 is operated). Refer to the winning determination table prepared in the ROM 113 based on the random number for internal lottery acquired using the hardware random number function, the setting by the setting switch 91, the bet number set by the player, and the current gaming state This is what the CPU 111 performs. Winning in the internal lottery is exclusive, and a plurality of winnings are not won simultaneously in one game.

  Since different winning determination tables for the internal lottery are prepared for each set value, the winning probabilities for each combination in the internal lottery vary depending on the set value, but FIG. FIG. 5B shows a case where the set value is 6 and the bet number is 3, and FIG. 5B shows an example where the set value is 6 and the bet number is 1. Also, since different winning determination tables are prepared depending on the gaming state, as shown in FIGS. 5A and 5B, the winning probability of each combination in the internal lottery varies depending on the gaming state. Yes.

  Here, the replay winning probability is the same regardless of the number of bets, and is higher than the normal gaming state (including the chance game) when the gaming state is at RT. In the normal gaming state, chance game, and RT, if the set value and the bet number are the same, the winning probability of the role other than RT is the same, and the larger bet number is the same or higher than the smaller bet number. ing. However, the RT winning probability in the chance game is 1/1200 when the bet number is 3, which is the same as the normal game state and RT, but when the bet number is 1, it becomes 1/20 when the bet number is 1, and the normal game state and It is much higher than RT.

  Although not shown in the figure, if the gaming state and the number of bets are the same, the winning probability of each combination decreases as the setting value decreases (however, the winning probability is assumed to be the same with different setting values). There may be a role that has). In the chance game, the RT winning probability when the bet number is 1 also decreases as the set value decreases, but does not become lower than the RT winning probability when the bet number is 2 or 3. With such setting of the winning probability, the medal payout rate calculated based on the internal lottery probability with respect to the bet number set by the player increases as the bet number increases.

  The internal lottery is performed for each game, and the winning flag is set in the RAM 112 according to the result. However, the winning flag of the small role (including replay etc.) is won based on this. Regardless of whether or not it is played, it will be erased for each game. The same applies to the SCT winning flag. On the other hand, the winning flag for the bonus (including RT) is carried over from the next game until a prize is generated based on the winning flag.

  When the bonus winning flag is already set by the internal lottery before the previous game, the bonus (including RT) lottery is not performed, and multiple types of bonus winning flags (including the RT winning flag) are set simultaneously. It will not be done. Even if the bonus winning flag has already been set, the small role (including replay) will be drawn, so when you win the small role (including replay), the bonus winning flag and small role winning flag (replay winning flag will be displayed). May be duplicated and set. When the bonus winning flag and the small role winning flag (including the replay winning flag) are set to overlap, the small role winning flag is prioritized in the control of the reels 3L, 3C, and 3R.

  Hereinafter, a gaming operation in the slot machine 1 according to this embodiment will be described. In the following description, the term “game” means, in a narrow sense, from the operation of the start lever 11 until the reels 3L, 3C, 3R are stopped. However, when a game is played, the number of bets before the operation of the start lever 11 is set, and medals are paid out and the game state is shifted after the reels 3L, 3C, 3R are stopped. Is also included in the “game” in a broad sense.

  FIG. 6 is a flowchart showing processing for one game executed by the CPU 111 of the game control board 101. This process is also executed after the power is turned on and a predetermined boot process is performed, or immediately after the setting is changed by operating the setting switch 91. When the process of one game is started, first, an initial process including a process of clearing a predetermined area of the RAM 112 is performed (step S1).

  Next, by operating the single BET button 14 or the MAXBET button 15 or by inserting medals from the medal insertion slot 13, the number of bets of 1, 2 or 3 is set and the start lever 11 is operated. By doing so, a BET process for instructing the substantial start of the game is performed (step S2). However, if the player has won a replay in the previous game, the same number of bets as the previous game are automatically set by the replay flag (the replay flag is erased at this stage), so the start lever 11 is operated as it is. You can tell the start of the game.

  When the bet number is set by the BET process and the start lever 11 is operated, an internal lottery is performed to determine whether or not the winning of each winning combination is allowed according to the set value, the bet number and the gaming state, A lottery process for setting a winning flag according to the result is performed (step S3). This lottery process includes a process for manipulating the value of the chance game counter. Details of the lottery process will be described later.

  When the lottery process ends, a reel fluctuation start process is performed (step S4). In the reel fluctuation start process, the reels 3L, 3C, and 3R in the previous game are processed on the condition that a predetermined time (for example, 4.1 seconds) has elapsed from the start of rotation of the reels 3L, 3C, 3R The motors 3ML, 3MC, and 3MR are driven to start rotation of all the left, middle, and right reels 3L, 3C, and 3R. Thereby, the symbols are variably displayed on the variable display device 2. Here, when a predetermined time has not elapsed since the start of rotation in the previous game, the rotation is awaited for rotation, and the weight display unit 31 is notified by lighting the weight lamp 61. Also, the timing of one game timer for the next game is started.

  Thereafter, reel fluctuation stop processing is performed (step S5). In the reel fluctuation stop process, after a predetermined condition is established from the start of reel rotation (the reference position is detected by the reel sensors 3SL, 3SC, 3SR after the rotation speed reaches a certain speed), the stop buttons 12L, 12C , 12R is made effective, and the reel motors 3ML, 3MC, and 3MR are stopped by being operated by the player, and the rotation of the reels 3L, 3C, and 3R is stopped. At this time, pull-in control is performed within a range of 4 frames or less according to the winning flag. Further, when the elapsed time after the predetermined condition is satisfied reaches a predetermined time (for example, 30 seconds), the driving of the reels 3L, 3C, and 3R is forcibly stopped.

  When the driving of each of the reels 3L, 3C, 3R is stopped, in the display mode at the time of stopping, is any of the above-mentioned role symbols derived and displayed on the active line corresponding to the bet number set in the BET process in step S2 A winning determination process for determining whether or not is performed (step S6). If it is determined in this winning determination process that a winning combination has been won, various processes corresponding to the winnings generated on the game control board 101 are performed. Here, when the bet number is 3 and the big bonus is won, a 3 BET flag is set in the RAM 112 for the chance game lottery. Details of the winning determination process will be described later.

  When the winning determination process ends, a payout process is performed (step S7). In the payout process, the credit is increased by the number of payout scheduled medals set in the winning determination process. However, when the number of credits accumulated as data reaches 50, the hopper motor 82 is driven to pay out an excess number of medals from the medal payout slot 71. Various settings not related to winning are also made. Here, when the big bonus with 3 bets is over, a chance game lottery is performed. Details of the payout process will be described later. Then, the process for one game ends, and the process for the next one game starts.

  Next, the lottery process in step S3 will be described in detail. FIG. 7 is a flowchart showing in detail the lottery process executed by the CPU 111 in step S3. First, a random number for internal lottery is extracted using the hardware random number function, and the extracted random number value is temporarily stored in the RAM 112 (step S101). Further, the random number value temporarily stored in the RAM 112 is changed to the probability setting by the setting switch 91, the bet number set by the BET process in step S2, and the current gaming state (normal, chance game, RT, regular bonus, big bonus). The corresponding winning determination table is compared (step S102).

  Next, as a result of comparing the value of the random number with the winning determination table, it is determined whether or not any kind of small role (including replay or the like) has been won (step S103). If any kind of small combination (including replay and the like) has been won, the winning flag of the selected small combination (including replay and the like) is set in the RAM 112 (step S104). Then, the process proceeds to step S112.

  If any kind of small role (including replay) has not been won, the bonus winning flag (including RT) has already been set in the RAM 112 in the previous game, and no bonus winning has occurred. It is determined whether it has been carried over (step S105). If the bonus winning flag is not set, it is determined whether or not any type of bonus (including RT) has been won as a result of comparing the random number value with the winning determination table (step S106).

  If the bonus winning flag has already been set, or if the bonus winning flag has not been set, the process proceeds to step S112. On the other hand, if any type of bonus (including RT) has been won, a winning flag of the winning bonus (including RT) is set in the RAM 112 (step S107).

  When the bonus winning flag is set, the chance game ends there, so the value of the chance game counter in the RAM 112 is initialized to 0 (step S108), a predetermined command is transmitted to the effect control board 102, and the liquid crystal is displayed. The notification that the chance game is in progress on the display 4 is terminated (step S109). Further, it is determined whether or not the type of bonus won this time is RT (step S110). If the RT is won, a predetermined command is transmitted to the effect control board 102 and the fact is notified by the liquid crystal display 4 (step S111). Then, the lottery process is terminated, and the process returns to the flowchart of FIG. If the RT is not won, the lottery process is terminated and the process returns to the flowchart of FIG.

  In step S112, it is determined whether or not the game has been a chance game up to the current game, depending on whether the value of the chance game counter in the RAM 112 is 1 or more. If it is not a chance game, the lottery process is terminated as it is, and the process returns to the flowchart of FIG. If it is a chance game, it means that one chance game has been consumed, so the value of the chance game counter in the RAM 112 is decremented by 1 (step S113).

  As a result, it is determined whether or not the value of the chance game counter has become 0 (step S114). If the value of the chance game counter is not 0, the lottery process is terminated as it is, and the process returns to the flowchart of FIG. When the value of the chance game counter becomes 0, the chance game ends here, so a predetermined command is transmitted to the effect control board 102 to notify that the liquid crystal display 4 is in the chance game. Is terminated (step S115). Then, the lottery process is terminated, and the process returns to the flowchart of FIG.

  Next, the winning determination process in step S6 will be described in detail. FIG. 8 is a flowchart showing in detail the winning determination process executed by the CPU 111 in step S6. First, it is determined whether or not symbols serving as a winning display mode are arranged on the active line set according to the number of bets (step S201). If there are no symbols for displaying the winning display, the winning determination process is terminated and the process returns to the flowchart of FIG.

  If the winning display pattern is complete, the winning display mode is a bonus (including RT) winning display mode, and the corresponding bonus winning flag (including the RT winning flag) is set in the RAM 112. It is determined whether it has not been performed (step S202). If the winning display mode is a bonus winning display mode in which the winning flag is not set, the process ends in error. The error processing at this time is not related to the present invention, and thus description thereof is omitted.

  If the winning display mode is not the bonus winning display mode in which the winning flag is not set, the one, two, or three betting lamps 54 to 58 corresponding to the active line on which the winning display mode is derived and displayed are displayed. A blinking display is made (step S203). Next, it is determined whether or not the winning display mode is a big bonus display mode (step S204). In the case of the big bonus display mode, the big bonus winning flag set in the RAM 112 is erased and a big bonus medium flag is set in the RAM 112 (step S205).

  Further, it is determined whether or not the number of bets on the current game for which the display mode of the big bonus has been derived is 3 (step S206). If the number of bets on the current game is 3, a 3 BET flag is set in the RAM 112 in order to perform a chance game lottery after the end of the big bonus (step S207). Then, the process proceeds to step S214. If the number of bets on the current game is not 3, the process proceeds directly to step S214.

  If the winning display mode is not the big bonus display mode, it is determined whether the winning display mode is a regular bonus display mode (including JACIN) (step S208). If the regular bonus display mode is selected, the regular bonus winning flag set in the RAM 112 is erased (none in the case of JACIN), and the regular bonus medium flag is set in the RAM 112 (step S209). Then, the process proceeds to step S214.

  If the winning display mode is not the big bonus display mode, it is determined whether or not the winning display mode is the RT display mode (step S210). If the display mode is RT, the RT winning flag set in the RAM 112 is erased and the RT flag is set in the RAM 112 (step S211). Then, the process proceeds to step S214.

  If the winning display mode is not the RT display mode, it is determined whether or not the winning display mode is the replay display mode (step S212). If the replay display mode is selected, a replay flag is set in the RAM 112 (step S213). This replay flag is deleted when the bet number is automatically set in the next game. Then, the winning determination process is terminated, and the process returns to the flowchart of FIG. If it is not the replay display mode, it is the small mode (including JAC) display mode. In this case, the process proceeds to step S215.

  In step S214, since one of the big bonus, regular bonus, and RT is won, the value of a counter provided in the RAM 112 for counting the number of paid-out medals, the number of games, or the number of winnings in these gaming states is set. initialize. Then, the process proceeds to step S215.

  In step S215, since a winning combination other than replay is won, the number of medals paid out according to the winning display mode (two cherries, eight bells, and fifteen other medals) is paid out. The planned number is set in the RAM 112. Then, the winning determination process is terminated, and the process returns to the flowchart of FIG.

  Next, the payout process in step S7 will be described in detail. FIG. 9 is a flowchart showing in detail the payout process executed by the CPU 111 in step S7. First, the number corresponding to the winning combination is determined by controlling the hopper 80 and discharging the medals one by one while subtracting the planned payout number by 1 until the planned payout number set in the RAM 112 becomes 0. Pay out the medal to the player. However, if the number of credits has not reached 50, the number of credits is incremented by 1 instead of discharging medals one by one (step S301).

  Next, it is determined whether or not the current gaming state is in bonus depending on whether the regular bonus flag, big bonus flag or RT flag is set in the RAM 112 (step S302). If the current gaming state is not in bonus, the process proceeds to step S313. If the current gaming state is a bonus, the number of payout medals after the gaming state is transferred to the bonus using various counters of the RAM 112 (the number of games and winnings for a regular bonus, The number of games and the number of winnings in the regular bonus are also counted (step S303).

  Next, it is determined whether the end result of the bonus (including the regular bonus in the big bonus) is satisfied as a counting result of the number of paid-out medals (step S304). If the bonus end condition is not satisfied, the process proceeds to step S313. If the bonus end condition is met, the corresponding bonus flag in the RAM 112 is erased. However, when only the regular bonus in the big bonus is finished, only the regular bonus flag is deleted without deleting the big bonus flag (step S305).

  Next, it is determined whether or not the bonus type which has been ended by deleting the mid-bonus flag is a big bonus (step S306). If it is not the end of the big bonus, the process proceeds to step S313. If the big bonus is ended, it is further determined whether or not the 3BET flag is set in the RAM 112, that is, whether or not the number of bets at the time of winning the big bonus is three (step S307). If the 3BET flag is not set, the process proceeds to step S313 as it is.

  If the 3BET flag has been set, the 3BET flag is first deleted (step S308). Next, a random number for the chance game lottery is extracted by the software random number function, and a chance game lottery is performed to determine whether or not to shift to the chance game according to the extracted random number value (step S309). Here, it is determined whether or not the chance game lottery is won based on the extracted random value (step S310). If the chance game lottery is not won, the process proceeds to step S313.

  When the chance game lottery is won, 10 is set as an initial value in the chance game counter of the RAM 112 (step S311). In addition, since 10 is set in the chance game counter, the next game becomes a chance game, so a predetermined command is transmitted to the effect control board 102 to notify the liquid crystal display 4 that the chance game is in progress. (Step S312). Then, the process proceeds to step S313.

  In step S313, if an SCT winning flag or a winning combination (including replay or the like) winning flag is set in the RAM 112, it is deleted. Other regular bonus winning flags, big bonus winning flags or CT winning flags are not erased but carried over to the next game. Then, the payout process is terminated, and the process returns to the flowchart of FIG. When returning to the flowchart of FIG. 6, the processing for one game is finished as it is.

  In the repetition of the game as described above, the CPU 111 of the game control board 101 shifts the game state between the normal game state, the regular bonus, the big bonus, and the RT, and various kinds of games are performed according to the progress of the game. A command is transmitted to the effect control board 102. On the other hand, the CPU 121 of the effect control board 102 performs an effect based on the command received from the game control board 101. However, the effects other than the above-mentioned notification that the chance game is in progress and the notification of RT winning are not directly related to the present invention, and thus detailed description thereof is omitted.

  As described above, in the slot machine 1 according to this embodiment, the RT winning probability in the internal lottery is when the bet number is 2 or 3 when the bet number is 1 in each game during the chance game period. Higher than that. That is, the player can be involved in the occurrence of RT by changing the number of bets set in each game during the chance game period, so that the gameability is improved. Thereby, the interest of a game can be improved.

  However, RT does not occur only by winning RT in the internal lottery, but RT winning must occur based on the set RT winning flag. The RT prize is generated by aligning the RT symbol on the active line by operating the stop buttons 12L, 12C, and 12R, so that the player's involvement also acts on the occurrence of RT, and the gameability is further improved. Can be made.

  Here, even if the RT winning flag cannot be generated due to inappropriate operation of the stop buttons 12L, 12C, and 12R, the RT winning flag is carried over after the next game. And will not be detrimental to the player. In addition, when the RT winning flag is set, if the bet number is set to 3 and the stop buttons 12L, 12C, 12R are pushed in order from the left, it is always possible to make an RT prize. Can be prevented. In addition, since the fact that the RT has been won is notified by the liquid crystal display 4, at least the next game in which the RT has been won can always be awarded RT, and the player's disadvantage can be prevented.

  By the way, in the chance game period, the RT win probability is higher when the game is played with 1 bet, so RT is more likely to occur. However, in the RT where the bet number is 1, the bet number is 3 Even if the game is played, the replay winning probability is higher than that in the normal gaming state as in the case where the game is played with the bet number 1. Considering the internal winning probabilities of other roles as shown in FIG. 5, it is advantageous to play the game with 3 bets other than the chance game period. That is, since the player can select and set an advantageous bet number according to the state at that time, the range of the progress of the game is widened, and the interest of the game can be improved. In addition, it is possible to realize gameability advantageous to the player in accordance with the degree of player's involvement, and further improve the interest of the game.

  Also, during the chance game period, playing a game with a bet number of 1 is advantageous to the player because the RT winning probability is higher, but in order to obtain this chance game period, The game must be played as 3 to generate a big bonus. Since the player can easily generate RT by selecting and setting different bet numbers depending on whether or not it is a chance game period, the player's involvement in the occurrence of RT increases, and the game The property is improved.

  Furthermore, during the chance game period, if the number of bets is 1 and the game is played, the player loses from the viewpoint of the payout rate based on the internal winning probability, but the RT winning probability becomes high and the gaming state becomes RT. Since there are many cases where it is transferred, the player will eventually gain. As described above, since the profit or loss according to the payout rate is not simply determined based on the payout rate based on the internal winning probability, the fun is increased and the game is high.

  Here, when there is a chance game period in which the RT winning probability can be increased with one bet as a bet, the fact is notified by the liquid crystal display 4. For this reason, it is easy for the player to know that it is in the chance game period, and it is possible to prevent the player from accidentally setting an unfavorable bet number (here, 2, 3) and starting the game. become able to. Furthermore, the fact that the RT is won during the chance game period is also notified by the liquid crystal display 4 (however, the RT winning other than the chance game period is also notified), so the player can change the bet number to be set immediately. RT can be generated at an early stage.

  Moreover, the chance game period is obtained as a result of the chance game lottery performed after the end of the big bonus when the bet number is 3 and the short-term chance game is sandwiched immediately after the big bonus ends. RT can be generated. In this way, if the player is awarded a big bonus with 3 bets, the game state that is advantageous to the player is likely to continue, so the player's expectation of winning the big bonus (winning) may be increased. And can further enhance the fun of the game.

  Further, the setting status of the winning flag set in the RAM 112 according to the result of the internal lottery is output from the external output board 105 to the outside of the slot machine 1 by the winning status signal generated by the CPU 111. By connecting a test device to the external output board 105 and monitoring the winning status signal, the test device can simulate the case where the number of payout medals is the largest based on the setting status of the winning flag. Become.

  Here, the external output board 105 that outputs various signals including the winning status signal to the outside is configured to be divided into a main part 105a and a sub part 105b provided with external output terminals 150a and 150b, respectively. Since the main part 105a is not removed in the test before market entry or after market entry, various signals other than the winning status signal are also sent to the test apparatus from the external output terminal 150a provided here. You can also output to the management computer.

  On the other hand, the sub part 105b is not removed in the test before being put on the market, but is cut off from the main part 105a and removed when the part is put on the market. Therefore, the test apparatus can be connected to the external output terminal 150b that should be mounted on the sub-part 105b, but the management computer cannot be connected. As a result, it is possible to prevent fraud such that the winning status signal is directly input to the management computer or the like and analyzed. Furthermore, unauthorized modification such as connecting to a control board that is illegally configured to the external output terminal 150b and making it possible to produce an effect based on the setting status of the winning flag cannot be easily performed.

  The present invention is not limited to the above-described embodiment, and various modifications and applications are possible. Hereinafter, modifications of the above-described embodiment applicable to the present invention will be described.

  In the above embodiment, if the bet number is 1 in the chance game, RT is won with a probability of 1/20. However, even if it is other than the chance game, or the bet number is 2 or 3, 1 It was assumed that RT was won at a probability of / 1200 (provided that the set value is 6). The same can be said for other set values. On the other hand, the RT is won only in the chance game with the bet number being 1, and the RT may not be won in other cases (that is, the RT winning probability is 0).

  In the above-described embodiment, the RT gaming state is ended when a predetermined number of games are consumed. However, for example, the RT gaming state may be ended by winning an RT punk lottery performed in each game during RT. Further, for example, RTs having different degrees of advantage may be generated in accordance with the number of games until RT winning (winning) in the chance game period. The advantage of RT can be distinguished by the difference in the number of games until the end, the winning probability of RT punk lottery, or the replay winning probability during RT (but higher than the normal gaming state). When the number of games until the end of RT increases (including the case where the winning probability of RT punk lottery decreases and the number of games increases as a result), or the probability of replay winning during RT increases, the player sets the number of bets Since the number of medals invested in is small, the advantage as RT is high.

  In the above embodiment, when the RT winning flag is set by the internal lottery and the RT combination is not won based on the flag, the RT winning flag is carried over after the next game. However, the RT winning flag may be deleted in each game in the same manner as the small role winning flag. In this case, it is preferable from the viewpoint of preventing a player's disadvantage that the symbol arrangement of the reels 3L, 3C, 3R is not lost even if one bet is placed.

  In the above embodiment, not only that the chance game is being played but also that the RT is won is notified, but the notification about the RT winning may not be performed. In this case, it is preferable to carry over at least the RT winning flag until the first game after the chance game is over. After the chance game is over, if the player sets the bet number to 3 and presses the stop buttons 12L, 12C, 12R in order from the left, the player can always win the RT role. This is because it can be prevented.

  In the above embodiment, the number of chance games that are awarded in the chance game lottery after the end of the big bonus won with 3 bets is fixed to 10 games. However, the number of continuation games of the chance game is arbitrary, and can be only one game. Further, the number of chance games can be arbitrarily determined in the chance game lottery. In this case, not only the fact that the chance game is being played, but also the number of games of the chance game, or the number of games played or the number of remaining games can be notified. Thereby, game nature can further increase and the interest of a game can be improved.

  In the above-described embodiment, ten chance games are given on the condition that the chance game lottery is won after the end of the big bonus when the bet number is three. On the other hand, a chance game may be given after the end of the big bonus that has been won with 3 bets. The chance game lottery is performed even after the end of the big bonus that has been won with any bet number, but the winning probability may be increased as the bet number is larger.

  Further, the chance game may be given not only after the end of the big bonus but also after the end of RT. The chance game after the end of RT may be always given (however, the number of games is equal to or less than the inverse of the RT winning probability) or may be given by winning the chance game lottery. As a result, it becomes possible to realize a so-called RT chain in which a new RT is generated immediately after one RT is completed, and greatly increases the player's expectation for the first RT occurrence. In addition, the interest of the game can be further improved.

  In the above embodiment, the winning of each combination in the internal lottery is determined using the winning determination table, and the winning flag is set according to the result of referring to the table according to the extracted random number for internal lottery. I was supposed to do. On the other hand, by jumping to a different control routine according to the extracted internal lottery value, setting value, bet number, and gaming state without using the winning determination table, depending on each role It is also possible to set a winning flag.

  In the above embodiment, the external output board 105 is composed of the main part 105a and the sub part 105b, and the sub part 105b is removed at the time of entering the market so that the signal wiring of the winning status signal is not connected to the external output terminal 150b. As a result, the winning status signal was not output to the hall management computer. However, the configuration for preventing the winning status signal from being output to the external device at the time of market entry is not limited to this. For example, it is assumed that the CPU 111 of the game control 101 encrypts and outputs the winning status signal, and provides a circuit for decrypting the encrypted winning status signal on the external output board 105 only at the time of the test before entering the market. Also good.

  In the above embodiment, the variable display device 2 includes the three reels 3L, 3C, and 3R in which a plurality of symbols are arranged in a predetermined order on the outer peripheral portion, and the symbols are driven by rotational driving of these reels 3L, 3C, and 3R. Was variably displayed. However, a device that virtually displays a symbol on a display device such as a liquid crystal display device may be used instead of the variable display device 2 described above.

FIG. 3 is a front view showing the overall structure of the slot machine according to the embodiment of the present invention. It is a figure which shows the arrangement | sequence of the symbol in each reel which comprises a variable display apparatus. FIG. 2 is a block diagram showing an overall configuration of a control circuit of the slot machine of FIG. 1. It is a figure which shows the structure of the external control board of FIG. 3 in detail. It is a figure which shows the internal winning probability of each combination in each game state. It is a flowchart which shows the process which the control part in a game control board performs for every game. It is a flowchart which shows the lottery process of FIG. 6 in detail. It is a flowchart which shows the winning determination process of FIG. 6 in detail. It is a flowchart which shows the payout process of FIG. 6 in detail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slot machine 2 Variable display device 4 Liquid crystal display 101 Game control board 105 External output board

Claims (6)

A number of bets can be set for one game, and the game can be started by setting the number of bets in any one of them. In a slot machine in which a display result is derived to a variable display device to be displayed, one game is completed, and a predetermined winning can be generated according to the display result of the variable display device.
The payout rate indicating the ratio of the valuable value given to the player with respect to the bet amount when the bet number of the first mode is set among the bet numbers of the plurality of modes is smaller than the bet number of the first mode The bet number of the second aspect is determined to be higher than the payout rate when the bet number is set, and the bet is determined according to the predetermined payout rate before the display result of the variable display device is derived. Pre-decision to determine whether or not to allow a winning display result including a replay display result with re-game granting that can be played without using a valuable value that can be used for setting the number to be derived Means,
Fluctuation stop control means for causing the variable display device to derive a display result by stopping the fluctuation display of the identification information according to the determination result of the prior determination means,
Control to a specific gaming state in which the probability that the derivation of the replay display result is allowed to be higher than the normal gaming state without changing the probability that the pre-determining means permits the derivation of the winning display result other than the regame display result Specific gaming state determining means for determining whether or not to do;
Specific game state control means for controlling the game state to the specific game state according to the determination by the specific game state determination means,
The specific gaming state determination means has a first determination probability and a second determination probability higher than the first determination probability when the bet number of the second aspect is set in a predetermined specific period. Specific period state specific gaming state determination means for determining whether to control the gaming state to the specific gaming state according to the second determination probability of
In the game in which the bet number of the second mode in the specific period is set, the prior determination unit determines that the specific game state determination unit controls the specific game state, and the specific game state is determined based on the determination. when it is controlled to the playing state, sets the number of bets the second embodiment during the betting amount of the second aspect of the specific time period that is controlled to the specific game state that is later than the set game Even if the game is played with the number of bets in the first mode set instead of the above, the specific game state is maintained and the replay display result can be derived with a higher probability than the normal game state. A slot machine characterized by deciding to do. The pre-determining means further determines whether or not to allow a special display result with a game value other than valuable value to be derived as the winning display result,
When the variable stop control means derives the special display result based on the determination result of the prior determination means, a special game state advantageous to a player that is different from the specific game state until a predetermined end condition is satisfied And a special gaming state control means for controlling the gaming state,
The slot machine according to claim 1, wherein the specific period is a period of a predetermined number of games after the special gaming state has ended. The slot machine according to claim 1, further comprising a specific period notifying unit that notifies that the specific period is reached. The specific game state determination means determines whether or not to allow a specific display result with control to the specific game state to be derived as the winning display result,
The specific game state control means controls the specific game state when the variation stop control means derives the specific display result based on a determination result of the specific game state determination means. The slot machine according to any one of 1 to 3. The variation stop control means derives the specific display result whenever the variation display of the identification information is stopped according to a predetermined condition when the specific determination result is allowed to be derived by the prior determination means. The slot machine according to claim 4. A decision circuit set by the pre-decision unit is converted into a signal and output, and a substrate having a signal transmission path capable of connecting an external connection unit that outputs the signal to an external device is provided. Item 6. The slot machine according to any one of Items 1 to 5.

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