JP4636492B2 - Slot machine - Google Patents

Description

  The present invention relates to a slot machine in which a winning rate is changed by changing a winning probability of a combination according to the number of inserted game media.

  In a conventional slot machine, for example, the number of inserted medals during a normal game is set so that the player can select from 1 to 3 medals. However, when the number of inserted medals is one or two, since the winning probability of winning combination is set to be low, it is usual to always insert three medals and play a game.

  In addition, when the BB is won and won and the game shifts to the BB game, the general game (first game) is started first. In this general game, a game is played by inserting three medals as in a normal game. When the transition combination is won and won during the general game, a bonus game (second game) is started from the next game. In addition, the winning probability of the transitional combination in the general game of the BB game is about 1/3 to 1/6.

In addition, during the bonus game, the number of medals received is only one, and a predetermined combination is won with a high probability. Since the maximum number of medals to be paid out at the predetermined winning combination is set to 15 at the maximum, the bonus game is positioned as a game with a high payout rate (for example, paragraph numbers “0069” to “0069” in Patent Document 1). (Refer to “0072”).
JP 2004-89299 A

  However, in the above-described conventional technology, the number of medals inserted is determined in advance as 3 in the normal game or the general game of the BB game and 1 in the bonus game of the BB game. There was a problem that the number of medals inserted according to the number was uniform.

  Therefore, the problem to be solved by the present invention is to provide a change in the payout rate that has not been achieved in the past by giving a change to the number of inserted game media (medals) according to the game state.

The present invention solves the above-described problems by the following means.
(Claim 1)
A role lottery table that determines the winning probability of a role, a role lottery means for drawing a role using the role lottery table, and a special role won by the role lottery means during a normal game, corresponding to the special role Special game control means for controlling to execute a special game when the combination of symbols stops on the active line, and the special game control means includes the first game and the per game during the special game. A game in which a payout rate representing an expected value of the number of game media to be paid out with respect to the number of game media to be inserted into the game is set higher than that in the first game, and includes a predetermined combination in the combination lottery means. A control is performed to execute a second game in which a lottery of a combination is executed, and during the first game, a winning combination is won by the combination lottery means, and a combination of symbols corresponding to the transitional combination becomes an active line. When stopped, from the first game to the second game Is the line, in the second game, or game number reaches the specified number of times, or when the winning number of the predetermined combination reaches a specified number of times, shifts from the second game in the first game, the operation of Until the number of game media paid out during the special game reaches a predetermined number, and when the number of game media paid out during the special game reaches the predetermined number, The game is controlled to end, and in the first game of the normal game and the special game, the number of inserted game media is set so that either n or m (n <m) can be selected. In addition, in the second game of the special game, the number of game media inserted is set to the n, and in the role lottery table used in the normal game, the special media when the number of game media inserted is the m. The probability of winning a role is a And the probability of winning the special combination when the number of inserted game media is n is set to a2 (a2 <a1) and is used in the first game of the special game. In the combination lottery table, the probability of winning the transition combination when the number of game media inserted is the m is set to b1, and the transition combination when the number of game media input is the n The probability of winning is set to b2 (b2> b1), and during the normal game, the payout rate is higher when the number of game media inserted is the m than when the number is n. As such, the winning probability of the small role and the replay and the number of game media to be paid out when winning the small role are set, and the number of game media inserted is the m during the first game of the special game. The time when n is more than the time As the payout rate increases, characterized in that the payout speed of the winning probability and small winning combination and migration officers of the winning time of game media of the small winning combination and transition combination is set.

According to the first aspect of the present invention, the first game and the second game are executed during the special game. In addition, the payout rate representing the expected value of the number of game media to be paid out with respect to the number of game media inserted per game is set higher in the second game than in the first game. Furthermore, during the first game, when the winning combination is won by the winning lottery means, and the combination of symbols corresponding to the transferring combination stops on the active line, the first game is shifted to the second game. Further, during the second game, when the number of games reaches the specified number of times, or when the number of winnings of the predetermined role reaches the specified number of times, the game shifts from the second game to the first game. Such an operation is repeated until a special game end condition is satisfied. The special game end condition is that the number of game media paid out during the special game has reached a predetermined number.
In addition, in the first game of the normal game and the special game, the number of inserted game media is set to select either n or m (n <m), and in the second game of the special game, The number of game media inserted is set to n.
Furthermore, during a normal game, the probability of winning a special combination is higher when the number of game media inserted is m than when n. Further, during normal games, the payout rate is higher when the number of inserted game media is m than when n. Therefore, during a normal game, a game is played with the number of game media inserted being m.
In addition, in the first game of the special game, a lottery for the transitional role for shifting to the second game with a high payout rate is performed. The winning probability of this transitional role is higher than when the number of game media input is m. Is higher when n. Furthermore, during the first game of the special game, the payout rate is higher when the number of inserted game media is n than when the number of game media is m. Therefore, during the first game of the special game, the game is performed with the number of inserted game media being n.

In the following embodiment, m is 3 (medals) and n is 1. In addition, the special role winning probability a1 is set to 1/240 (BB) or 1/360 (RB). Furthermore, the special role winning probability a2 is set to 1/1500 (BB and RB).
Furthermore, the winning probability of the transitional combination when n = 1 is set to 1 / 1.2, and the winning probability of the transitional combination when m = 3 is set to 1/20.
Also, the payout rate during the first game is 1.76 when the number of inserted medals is 1, and is 0.373 when the number of inserted medals is 3. Furthermore, the payout rate during the second game is 13.64. Further, during the second game, when the number of games reaches 12 times, or when the number of winnings of a predetermined role reaches 8, the second game is terminated and the first game is returned to. Further, when the number of medals paid out during the special game exceeds 465, the special game is terminated.

(Claim 2)
The invention according to claim 2 is the slot machine according to claim 1, wherein in the first game of the special game, the effect control is performed so as to output an effect that the number of inserted game media should be n. Means are provided.
In the invention of claim 2, in the first game of the special game, the effect control means outputs an effect that the number of game media to be inserted should be n.
In the following embodiment, notification is performed by the inserted number notification means 69a of the effect control means 69.

(Claim 1)
According to the invention of claim 1, since the special game end condition is set such that the number of game media paid out during the special game exceeds the upper limit, the number of game media input can be reduced. Since the number of game media is increased when the special game is digested, it is more advantageous for the player to reduce the number of games in the first game and increase the number of games in the second game. Become. Therefore, in the first game of the special game, it is possible to play the game with the number of inserted game media being n, and to win and win the transition role as soon as possible, so that it is advantageous to move to the second game. .

(Claim 2)
According to the invention of claim 2, it is possible to notify the optimal number of game media inserted in the first game of the special game.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an outline of control of the slot machine 10 in the present embodiment.
(Game control means)
The game control means 60 of the slot machine 10 is a means for overall control of the entire slot machine 10 including the progress and effects of the game of the slot machine 10, and the lottery of the role, the drive control of the reel 31, and the payout at the time of winning, Control the output of the production.

  The game control means 60 is provided on a control board, and performs various controls by the CPU that performs calculations, a ROM that stores programs necessary for the progress of games, data for effects, and the like. A RAM or the like for temporarily storing the fetched data or the like when performing.

(Bet switch, start switch, stop switch)
As shown in FIG. 1, a bet switch 40, a start switch 41, and a stop switch 42 are electrically connected to the input side (left side in FIG. 1) of the game control means 60.
The bet switch 40 is a switch that is operated when a player inserts a stored medal when a game is started, and is a switch for setting an effective line by the operation.

  Although the medal insertion slot is not shown in FIG. 1, the medal insertion slot is a part for inserting an actual medal for setting an effective line, like the bet switch 40. The insertion of medals is included in the operation of the bet switch 40.

The start switch 41 is a switch operated by the player when starting the reel 31.
Furthermore, three stop switches 42 are provided corresponding to the three reels 31 and are operated by the player when stopping the corresponding reels 31.

(Motor, reel)
Peripheral devices such as the motor 32 described below are electrically connected to the output side (right side in FIG. 1) of the game control means 60.
The motor 32 is for rotating the reel 31, is connected to the center of rotation of the reel 31, and is controlled by the game control means 60.
The reel 31 is ring-shaped, and a reel tape on which a plurality of types of symbols (such as symbols constituting a role) are printed is attached to the outer peripheral surface thereof.

  In the present embodiment, three reels 31 are provided in parallel. Each reel 31 is arranged so that three symbols that are continuous in the vertical direction can be seen from a display window (not shown) provided on the front panel of the slot machine 10. Therefore, nine symbols are arranged so that a total of nine symbols can be seen from the display window of the slot machine 10.

  When the start switch 41 is operated, a signal generated at that time is input to the game control means 60. When receiving this signal, the game control means 60 controls to drive all the motors 32 and rotate all the reels 31. As the reel 31 is rotated by the motor 32 in this way, the symbols on the reel 31 are moved and displayed in the vertical direction in the display window at a predetermined speed.

  When the stop switch 42 is operated, a signal generated at that time is input to the game control means 60. When the game control means 60 (specifically, a reel stop control means 64 described later) receives this signal, the game control means 60 controls driving of the motor 32 corresponding to the stop switch 42 and stops the reel 31 related to the motor 32. Take control.

  Here, in the present embodiment, the reel 31 is provided with left, middle, and right three, and the stop switch 42 is provided with left, middle, and right three correspondingly. That is, the reel 31 corresponding to the left stop switch 42 is the left reel 31, the reel 31 corresponding to the middle stop switch 42 is the middle reel 31, and the reel 31 corresponding to the right stop switch 42 is the right reel 31.

(Production output devices (lamps, speakers, image display devices))
Furthermore, on the output side (right side in FIG. 1) of the game control means 60, effect output devices such as the lamp 21, the speaker 22, and the image display device 23 are electrically connected.
The lamps 21 are effects lamps for the slot machine 10 and are turned on in a predetermined pattern when predetermined conditions are satisfied. The lamp 21 includes a back lamp (not shown) fixed to the inner peripheral side of each reel 31, an upper lamp and a side lamp that are arranged on the front surface of the housing of the slot machine 10 and blink when a winning combination is made. A lamp (not shown) and the like are included.

The speaker 22 outputs a predetermined sound when a predetermined condition is satisfied in order to perform various effects during the game.
Furthermore, the image display device 23 is composed of a liquid crystal image display device, a dot display, or the like, and displays various effect images and predetermined information during the game, as well as information on the number of inserted medals as will be described later in the present embodiment. It is to inform.
These effect output devices are controlled by effect control means 69 described later.

  At the start of the game, the player operates the bet switch 40 to insert a previously stored medal, or inserts a medal from the medal slot to set an effective line, and turns on the start switch 41. When the start switch 41 is turned on, the number of effective lines is determined and all the reels 31 are started (rotation is started).

  Then, the player presses each stop switch 42 to stop the rotation of each reel 31. When all the reels 31 are stopped, the combination of symbols of any combination stops on the active line, and when a winning combination of the combination is made, a medal is paid out according to the established combination.

(Design combination line, effective line)
Although not shown, a symbol combination line is provided in a portion including the display window of the slot machine 10.
Here, the “symbol combination line” is a line of symbols when the reel 31 is stopped, and is a line that forms a combination of symbols. In the present embodiment, it is composed of a total of five lines: lines provided respectively in the middle, upper, and lower stages in the horizontal direction, and diagonal lines in the downward and leftward diagonal directions. The three symbols that are continuous above and below each reel 31 are positioned on one or more symbol combination lines.

  Further, among the five symbol combination lines, an effective line and an invalid line are set from the symbol combination lines according to the number of medals inserted by the player. Here, in the present embodiment, the “effective line” is a line for winning a combination when a combination of symbols corresponding to any combination stops on the line.

  On the other hand, an “invalid line” is a line that is not set as an effective line among symbol combination lines, and even if a combination of symbols corresponding to any combination stops on that line, This is a line that does not give profits (medal payout etc.). In other words, the invalid line is a line that is not a target of combination of symbols in the first place.

In the present embodiment, the player can select the number of medals inserted in the first game (general game) of the normal game and the BB game from either one or three. When the number of medals inserted is 1, the horizontal symbol combination line (one line) is set as an effective line, and the remaining four symbol combination lines are set as invalid lines. When the number of inserted medals is 3, all symbol combination lines (a total of 5) are set as valid lines, and there are no invalid lines.
In this embodiment, it is not assumed that the number of inserted medals is two. However, if the number of inserted medals is two, the symbol combination lines in the horizontal middle, upper, and lower (three in total) ) Is set as an effective line, and the other two symbol combination lines are set as invalid lines.

  Further, in the second game (bonus game) of the BB game and the RB game, the number of inserted medals is set to only one (the maximum number received is only one). As a result, the horizontal symbol combination line (one line) is set as an effective line, and the remaining four symbol combination lines are set as invalid lines.

(Role)
FIG. 2 is a diagram showing the combinations set in the combination lottery table 62 (a first combination lottery table 62a to a third combination lottery table 62c described later) and their winning probabilities. As shown in FIG. 2, in this embodiment, BB and RB which are special roles, small roles 1, small roles 2 and 3 which are small roles, replays, transitional roles and predetermined roles are provided as roles. Yes.

  The special role is a role that shifts from a normal game to a special game (a game that can be expected to win medals more than a normal game and is advantageous to the player). In the present embodiment, BB (Big Bonus) and RB (Regular Bonus) are provided as special roles. BB is a role for shifting to a BB game, which is one of special games, and RB is a role for shifting to an RB game, which is another one of special games. In addition, although SB (single bonus) is mentioned as another special combination, in this embodiment, BB and RB are provided and SB is not provided.

The small combination is a combination in which a predetermined number of medals are paid out. In this embodiment, three types of small combinations 1 to 3 are provided. As shown in FIG. 2, the small combinations 1 to 3 are set such that the combination of the corresponding symbols and the number of medals to be paid out differ depending on the type of the small combination.
Furthermore, the replay is a re-playing role that allows the re-playing while maintaining the number of medals inserted in the game.

Furthermore, the transitional combination is a combination that is drawn by lottery only during the first game of the BB game. When the winning combination is won and won, the BB game shifts from the first game to the second game.
Further, the predetermined combination is a combination that is drawn in the second game of the BB game and in the RB game. Like the small combination, a predetermined number of medals are paid out when winning or winning.

In each of the above combinations, if the combination of symbols corresponding to the combination does not stop on the active line in the game selected for the combination, a combination that is carried over after the next game and a combination that is not carried over are determined. .
Special roles (BB and RB) are mentioned as the carry-over. When the special role is won, when the reel 31 is stopped, the special combination is won after the next game until the combination of symbols corresponding to the special role stops on the active line (until the special role is won). It is controlled to carry over.

  A game in which a special role is not won, that is, a game in which a special role is not carried over is referred to as “non-inside”. In addition, a special combination is won in the game or in the previous game, but the combination of symbols corresponding to the selected special combination is not stopped on the active line (not winning), that is, the special combination A game in which the winning is carried over is called "inside".

  As described above, the winning of the special role is carried over, but no role other than the special role is carried over. When a role other than the special role is won in the lottery of the role, the winning role is valid only in the game, and the winning is not carried over after the next game. In other words, in the game where these winning combinations are won, the reel 31 is controlled to stop so that the combination of symbols corresponding to the winning combination can be stopped (winning) on the active line. Regardless, at the end of the game, the right to the winning role will cease. Note that “stop (winning) is possible” means that the reel 31 stops (wins) within the range of the stoppable position of the reel 31 (within the range of stop control).

  In addition, combinations of symbols of the reel 31 corresponding to the above various combinations are determined in advance. In FIG. 2, what is displayed in parentheses on the right side of each combination indicates a symbol constituting a combination of symbols on the reel 31. For example, the symbol combination of BB is “7”-“7”-“7”, and the symbol combination of RB is “BAR”-“BAR”-“BAR”.

  In such a case, when all the reels 31 are stopped, the combination of symbols corresponding to any of the combinations stops on the active line, and when the winning combination of the combination is made, the number of medals corresponding to the combination is received. To be paid out. For example, when the combination of symbols “watermelon”-“watermelon”-“watermelon” is stopped on any one of the active lines when all the reels 31 are stopped, the winning combination of the small role 1 is determined in advance. A predetermined number of medals are paid out.

  The game control means 60 includes the following part lottery means 61 and the like. The following means in the present embodiment are examples, and the game control means 60 is not limited to the means shown in the present embodiment.

(Role lottery means)
The role lottery means 61 performs lottery of a role (BB and RB, which are the special roles described above, small role 1, small role 2, and small role 3, replay, transitional role or predetermined role). The role lottery means 61 includes, for example, a random number generator for hardware lottery (a random number generator composed of hardware), a random number extractor that extracts a random number generated by the random number generator, and a random value extracted by the random number extractor. And determining means for determining the presence / absence of a winning combination and the winning combination.

  The random number generation means (random number generator) of this embodiment generates a 16-bit random number (for example, 0 to 65535 in decimal notation). The random number extracting means extracts the random number generated by the random number generating means at a predetermined time, in this embodiment, when the start switch 41 is turned on (operated) by the player. The determination unit determines the combination corresponding to the area to which the random number value belongs by comparing the random number value extracted by the random number extraction unit with a combination lottery table 70 described later. For example, if the extracted random number value belongs to the BB winning area, it is determined as BB winning, and if it belongs to the non-winning area, it is determined as non-winning.

  In the normal game (non-inside), the role lottery means 61, as shown in FIG. 2, BB and RB which are special roles, small roles 1, small roles 2 and 3 which are small roles, replay and non-play Based on the random number extracted from the winning, the presence / absence of winning and the winning combination are determined.

(Role drawing table)
As shown in FIG. 2, the combination lottery table 62 defines the types of combinations to be selected and the winning probability of each combination. The combination lottery table 62 has a predetermined range of lottery areas. The lottery area is divided into a winning area and a non-winning area for each combination. The predetermined ratio is set so as to be.

Further, the role lottery table 62 is provided with a specific role lottery table 62 for each gaming state (normal game and special game).
First, a first combination lottery table 62a is provided as a combination lottery table 62 used for normal games. In the first combination lottery table 62a, when the special combination is won during the normal game and becomes the inside, the special combination is excluded from the combination selected.

The second combination lottery table 62b is used in the first game of the BB game. In the first game of the BB game, unlike the normal game, the special combination and the replay are not drawn. Furthermore, the small role is drawn in the same manner as in the normal game. Further, a transitional role is provided as a role unique to the first game of the BB game.
The third combination lottery table 62c is used in the second game of the BB game and the RB game. In the second game of the BB game, only a predetermined combination is provided as a combination to be drawn.

  Furthermore, the winning area and the non-winning area of each combination in the combination lottery table 62 are determined for each set value of the payout rate. Further, in the first combination lottery table 62a and the second combination lottery table 62b, a winning area and a non-winning area for each combination are determined for each number of inserted medals (one or three). On the other hand, in the second game and the RB game of the BB game, the number of inserted medals is only one. Therefore, in the third combination lottery table 62c, the winning area of each combination only when the number of inserted medals is one and Non-winning areas are defined.

As shown in FIG. 2, in the first combination lottery table 62a and the second combination lottery table 62b, the winning probability of the special combination, the small combination 1 and the small combination 3 when the number of inserted medals is one is three. It is set lower than there is. In the present embodiment, the winning probabilities for the small combination 2 and the replay are the same for the 1 and 3 medals inserted.
In addition, the winning probability of the transitional combination is set higher when the number is one than when the number is three.

Furthermore, the winning probability of each winning combination and the number of medals to be paid out when winning each winning combination are set to have a predetermined payout rate.
Here, the payout rate represents an expected value of the number of medals to be paid out with respect to the number of medals inserted per game. That is, when the payout rate exceeds 1, the number of owned medals increases, and when the payout rate falls below 1, the number of owned medals decreases.

For example, it is assumed that the number of payouts at the time of winning the winning combination of the small combination 1 is 15, the small combination 2 is 8, the small combination 3 is 2, and the transitional combination is 1. In this case, the payout rate during the first game of the BB game is as follows.
First, the expected value of the number of payouts per game when the number of input is one is
15/500 (small role 1) +8/9 (small role 2) +2/500 (small role 3) + 1 / 1.2 (transfer role)
≒ 1.76 (sheets)
It becomes.
Therefore, the payout rate is
1.76 (expected value of number of payouts) / 1 (number of input sheets)
= 1.76
It becomes.

When the number of inserted sheets is 3,
15/100 (small role 1) +8/9 (small role 2) +2/64 (small role 3) +1/20 (transfer role)
≒ 1.12 (sheets)
It becomes.
Therefore, the payout rate is
1.12 (Expected value of the number of payouts) / 3 (Number of input)
≒ 0.373
It becomes.

  From the above, during the first game of the BB game, when the number of inserted medals is 1, the payout rate exceeds 1, but when the number of inserted medals is 3, the payout rate is less than 1. Is set to Therefore, the payout rate is higher when the number of inserted medals is one than when the number is one. In addition, when the number of inserted medals is 1, it is easier to win the transitional role (it is easier to shift to the second game), but when there are 3 medals, the transitional role is won as compared to the case of one. It becomes difficult.

Furthermore, in the second game of the BB game, if the number of payouts at the time of winning a predetermined role is 15, the expected number of payout numbers is
15 / 1.1
≒ 13.64 (sheets)
It becomes.
Therefore, the payout rate is
13.64 / 1
= 13.64
It becomes.
From the above, the payout rate during the second game is set higher than the payout rate during the first game.

Although details will be described later, in this embodiment, the BB game end condition is set such that the number of medals paid out during the BB game exceeds the upper limit. For this reason, if the number of inserted medals is reduced and the BB game is digested, the number of medals is increased. That is, it is more advantageous for the player to increase the number of games of the second game by decreasing the number of games of the first game.
Therefore, in the present embodiment, in the first game of the BB game, it is advantageous to perform the game with the number of inserted medals being one, win the winning combination as soon as possible, and shift to the second game.

(Means to carry over special roles)
In the game until the special combination (BB or RB) is won, until the combination of symbols corresponding to the special combination stops on the active line (until the special combination wins), It controls to carry on the special role winning after the next game.

  In the present embodiment, when a special combination is won, a special combination flag 63a is provided for each type of special combination in order to store the special combination. For example, when winning BB, the special combination flag 63a related to BB is turned on (from OFF), and when winning RB, the special combination flag 63a related to RB is turned on. The on state of these special combination flags 63a is maintained until BB or RB wins, and is turned from on to off when BB or RB wins.

(Reel stop control means)
The reel stop control means 64 is based on the lottery result of the winning combination by the winning lottery means 61 when the stop switch 42 is operated and the timing when the stop switch 42 is operated. , The stop position of the reel 31 corresponding to the stop switch 42 is determined, and the motor 32 is driven and controlled to stop the reel 31 at the determined position.

  For example, in the game where the small combination 1 is won, the reel stop control means 64 is a combination of symbols corresponding to the small combination 1 ("watermelon"-"watermelon"-"watermelon") within the range where the reel 31 can be stopped. The reel 31 is controlled to stop on the effective line, and the reel 31 is controlled to stop the combination of symbols corresponding to the combination other than the small combination 1 on the effective line.

  In addition, the reel stop control means 64, when the game won for the special role or the special role win is carried over (the special role flag 63a is on), and the special role is not selected in the game. The reel 31 is controlled to stop so that the combination of symbols corresponding to is stopped on the effective line.

(Stop position determination table)
The stop position determination table 65 defines the stop position of the reel 31 from the lottery result of the combination by the combination lottery means 61 and the position of the reel 31 at the moment when the stop switch 42 is operated.
The stop position determination table 65 is provided for each combination. The BB table, the RB table, the small combination 1 table, the small combination 2 table, the small combination 3 table, the replay table, the transition combination table, the predetermined combination table, and the non-winning table. Provide a table.

The BB table is a game won by BB, or a case where BB is won (when the special combination flag 63a related to BB is turned on) and no combination is won in the game. Is used as a condition.
In addition, the RB table is a game won for RB, or when the RB is won (when the special combination flag 63a related to RB is turned on), and any combination is won in the game. It is used on condition that there is no.

Furthermore, the small role 1 table, the small role 2 table, the small role 3 table, the replay table, the transitional role table, or the predetermined role table are the small role 1, small role 2, small role 3, replay, transitional role or predetermined, respectively. Used in games when winning a role.
Further, the non-winning table is used in a game in which no winning combination is won.

In addition, the BB table, the RB table, the small role 1 table, the small role 2 table, the small role 3 table, the replay table, the transitional role table, or the predetermined role table are within the range of the stoptable position of the reel 31, respectively. , RB, small combination 1, small combination 2, small combination 3, replay, transition combination or combination of symbols corresponding to a predetermined combination is stopped on the active line and a combination other than the combination (for example, small combination in the small combination 1 table) The combination of symbols when the reel 31 is stopped is determined so that the combination of symbols corresponding to the combination other than 1) is not stopped on the effective line.
Furthermore, the non-winning table defines a combination of symbols when the reel 31 is stopped so that a combination of symbols corresponding to any combination is not stopped on the active line.

  Here, in the present embodiment, “within the range where the reel 31 can be stopped” in the stop position determination table 65 means (1) from when the stop switch 42 is operated (momentary) to when the reel 31 is stopped. This means that the movement control amount of the reel 31 is within 5 symbols, or (2) the stop control time from when the stop switch 42 is operated (instant) until the reel 31 is stopped is within 190 ms.

  Using any of the stop position determination tables 65 described above, the reel stop control means 64, when stopping the combination of symbols corresponding to any of the combinations on the effective line, within the range of the stoptable position of the reel 31. Then, control is performed so that the symbols constituting the combination of symbols corresponding to the combination are stopped on the active line.

  In addition, when a small combination or replay is won during the normal game, the small combination or replay won in the game is given priority as the winning combination. In the normal game, the combination of symbols corresponding to the special combination can be stopped on the active line. However, in the game, the small combination or replay won in the game is given priority, and the reel stop control means 64 Then, the reel 31 is controlled to stop so that the selected small role or replay can be won. That is, in this case, the BB table or the RB table is not used, and the small combination 1 to small combination 3 table or the replay table is used.

(Stop symbol discrimination means)
The stop symbol discriminating means 66 discriminates whether or not the symbol combination of the reel 31 stopped on the effective line matches the symbol combination corresponding to any combination when the reel 31 is stopped. The stop symbol discriminating means 66 discriminates the symbol on the effective line by detecting, for example, the angle or the number of steps when the motor 32 is stopped.

  The stop symbol discriminating means 66 does not discriminate the symbol combination after the reel 31 is actually stopped. Instead, the stop symbol discriminating unit 66 uses the stop position determination table 65 to determine the reel from the position of the reel 31 at the moment when the stop switch 42 is operated. It is also possible to determine a combination of symbols on the effective line when 31 stop positions are determined.

(Payment means)
The payout unit 67 determines that the combination of symbols stopped on the active line when the reel 31 is stopped matches the combination of symbols corresponding to any of the combinations by the stop symbol determining unit 66 and the winning combination is won. In addition, a predetermined number of medals corresponding to the winning combination is paid out to the player, or processing such as credit addition is performed. Further, at the time of replay winning, control is performed so that the number of medals inserted in the game is automatically inserted without paying out medals.

(Special game control means)
The special game control means 68 starts the special game (BB game or RB game) (transition from the normal game to the special game), progress of the game during the special game, and end of the special game (from the special game to the normal game). Transition) and the like.

  The special game control means 68 shifts from the normal game to the BB game when the combination of specific symbols corresponding to BB stops on the active line. Further, when the combination of specific symbols corresponding to RB stops on the active line, the game is shifted from the normal game to the RB game. Furthermore, the special game control means 68 is used to inform the player that the game is to be transferred to the special game when shifting to the special game, that is, the lamp 21 is turned on, the sound is output from the speaker 22, and the image display device 23 is used. Control is performed to perform various effects such as image display.

  First, during the normal game, when the symbol combination corresponding to BB stops on the active line, BB is won and the BB game is started from the next game.

  When the BB game is started, the special game control means 68 first starts the first game (general game). When the transition combination is won during the first game of the BB game and the transition combination wins, the second game (bonus game) is started from the next game. During the second game, the number of games or the number of winning of a predetermined role is counted. When the number of games reaches the specified number of times (12 in this embodiment) or when the number of winning a predetermined role reaches the specified number of times (8 in this embodiment), the second game is terminated, Control to return to the game. Then, during the first game, the game is continued until the winning combination is won and won, and when the winning combination wins, control is performed so that the second game is transferred again.

In this way, during the BB game, the first game and the second game are moved back and forth until the end condition is satisfied.
In the present embodiment, the BB game end condition is set such that the number of medals paid out during the BB game exceeds the upper limit. Here, the upper limit value of the present embodiment is set to 465 sheets.

  Therefore, in this embodiment, the special game control means 68 counts the number of medals paid out during the BB game, and keeps updating the number of coins paid out for each game. When the special game control means 68 determines that the counted number of payouts exceeds the upper limit value (exceeds 465), it determines that the BB game end condition is satisfied.

  When the number of payouts in the game exceeds 465, it is determined that the upper limit has been exceeded, and the BB game ends in the game. On the other hand, when the number of payouts in the game is 465 or less, it is not determined that the upper limit value has been exceeded, so that the BB game is also performed in the next game. For example, when the number of payouts is 465 at the end of the game, it is not determined that the upper limit has been exceeded, so the process proceeds to the next game. Then, when the small game 1 (15 cards) is won and won in the next game, the payout number in the BB game is 465 + 15 = 480 cards.

  In the RB game, the second game in the above-mentioned BB game is performed until one set, that is, until the number of wins for a predetermined role reaches eight times or until the number of games reaches twelve times. In the RB game, the special game control means 68 continues to count the number of games or the number of winnings of a predetermined role.

(Production control means)
The effect control means 69 controls the output of various effects during the game. Based on the selected effect pattern, the effect output device (lamp 21, speaker 22, and image display device 23) described above. Control production output.
Further, when the start switch 41 is operated (when the rotation of the reel 31 is started) or when each stop switch 42 is operated (when each reel 31 is stopped), a production effect (operation sound or the like) is output. Control. Furthermore, when any of the winning combinations is won when all the reels 31 are stopped, control is performed so that an effect based on the winning is output.
Furthermore, when a special role is won, control is performed so as to output an effect to start a special game.

(Insert number notification means)
Furthermore, the effect control means 69 of the present embodiment includes the number-of-insertions notification means 69a.
The inserted number notifying means 69a notifies (outputs an effect) that the number of inserted medals should be one in the first game of the BB game.

As described above, in the first game of the BB game, the probability of winning the transitional combination is higher when the number of inserted medals is one than when the number is three. The person who wins the transitional role and shifts to the second game sooner can increase the net number of medals in the BB game. For this reason, in the first game of the BB game, it is advantageous that the number of inserted medals is one. Therefore, in the first game of the BB game, it is notified that the medal insertion number should be one as a condition that is advantageous to the player.
As the effect output device used for the notification, for example, the above-described image display device 23 is cited, and information such as “please insert one medal” is notified to the image display device 23.

Next, the flow of processing during a game in the present embodiment will be described based on a flowchart.
3 and 4 are flowcharts showing the flow of processing during the BB game. FIG. 4 is a flowchart following FIG.
First, in step S11, the special game control means 68 performs a first game start process.
In the next step S12, the inserted number notifying means 69a performs notification (effect) that the number of inserted sheets should be one.

  In the next step S13, the game control means 60 continues to detect whether or not the start switch 41 is turned on, and when on is detected, the process proceeds to step S14. In step S14, the game control means 60 determines an effective line based on the number of inserted medals and controls to start rotation of all the reels 31. Here, in step S12, since the notification that the number of inserted medals should be one is performed, usually one medal is inserted and one effective line in the horizontal middle is determined. In the next step S15, the part lottery means 61 performs a part lottery. Note that the winning combinations are a small combination and a transitional combination as shown in FIG.

  In step S16, the game control means 60 continues to detect whether or not the stop switch 42 is turned on, and when on is detected, the process proceeds to step S17. In step S17, the reel stop control means 64 uses the stop position determination table 65 corresponding to the lottery result of the combination in step S15 to determine the stop position of the reel 31 related to the operated stop switch 42 and the motor. 32 is driven and controlled to stop the reel 31 at the determined position.

  Next, proceeding to step S18, the game control means 60 determines whether or not all the reels 31 have stopped, and when determining that they have stopped, proceeds to step S19. On the other hand, when it is determined that all the reels 31 have not stopped yet, the process returns to step S16.

  In step S19, the stop symbol determination means 66 determines whether or not any winning combination has been won, that is, whether or not the combination of symbols corresponding to any winning combination has stopped on the active line. When it is determined that it has been stopped, the process proceeds to step S20. When it is determined that it has not been stopped, the process returns to step S12 to continue the first game. In step S20, the payout means 67 performs a medal payout process corresponding to the winning combination. Then, the process proceeds to step S21.

  In step S21, the special game control means 68 performs a process of updating the number of medals to be paid out (total number) during the BB game. Specifically, when a payout process is performed in step S20, a process of adding the number of medals paid out is performed. Next, proceeding to step S22, the special game control means 68 determines whether or not the number of medals paid out in the BB game has exceeded the upper limit M (465 in this embodiment). When it is determined that the upper limit value M has been exceeded, the special game control means 68 controls to end the BB game. On the other hand, when it is determined that the upper limit value M is not exceeded, the process proceeds to step S23.

  In step S23, the stop symbol determination means 66 determines whether or not the transition combination has won a prize in the game. If it is determined that the winning combination has won, the process proceeds to step S31 (FIG. 4) and subsequent steps. On the other hand, when it is determined that the winning combination has not won, the process returns to step S12 to control the first game to be continued.

  In step S31, the special game control means 68 performs the second game start process. Specifically, an initial value is set for the (remaining) game count X of the second game (in this embodiment, an initial value of the game count X = 12), and an initial value is set for the (remaining) winning count Y. (In this embodiment, the initial value of the number of winning times Y = 8).

  In the next step S32, the game control means 60 continues to detect whether or not the start switch 41 is turned on. When the start switch 41 is detected, the game control means 60 proceeds to step S33, and the game control means 60 rotates the reels 31. Control to start. Here, in the second game, since only one medal can be accepted, one effective line is determined. In the next step S34, the special game control means 68 subtracts 1 from the number X of games of the second game (X = X-1). In the next step S35, the part lottery means 61 performs a part lottery. As shown in FIG. 2, only a predetermined combination is selected as a winning combination.

  In the next step S36, the game control means 60 continues to detect whether or not the stop switch 42 is turned on, and when on is detected, the process proceeds to step S37. In step S37, the reel stop control means 64 follows the stop position determination table 65 corresponding to the lottery result of the combination in step S35 (the predetermined combination table when the predetermined combination is won or the non-winning table when the combination is not selected). The stop position of the reel 31 is determined based on the timing when the stop switch 42 is operated, and the reel 31 is controlled to stop at the determined position. Then, the process proceeds to step S38.

  In step S38, the game control means 60 determines whether or not all the reels 31 are stopped. If it is determined that all the reels 31 are stopped, the process proceeds to step S39. On the other hand, when it is determined in step S38 that all the reels 31 are not stopped, the process returns to step S36.

  In step S39, the stop symbol determination means 66 determines whether or not the combination of symbols corresponding to the predetermined combination has stopped on the active line (whether or not the predetermined combination has won a prize). When it is determined that the predetermined combination has won, the process proceeds to step S40. On the other hand, when it is determined that the predetermined combination has not won, the process proceeds to step S44.

In step S40, the payout means 67 pays out medals corresponding to a predetermined winning combination (payout of 15 medals), and proceeds to step S41. In step S41, the special game control means 68 updates the payout number (total number) of medals in the BB game, and proceeds to step S42.
In step S42, the special game control means 68 subtracts 1 from the winning count Y of the second game (Y = Y-1). Then, the process proceeds to step S43.

In step S43, the special game control means 68 determines whether or not the number of medals paid out exceeds the upper limit value M. When it is determined that the upper limit value M has been exceeded, the special game control means 68 controls to end the BB game. On the other hand, when it is determined that the upper limit value M is not exceeded, the process proceeds to step S44.
In step S44, the special game control means 68 determines whether or not the second game end condition is satisfied. In the present embodiment, it is determined that the condition for ending the second game is satisfied when the predetermined game winning number in the second game is 8 or the game number is 12.

  When it is determined that the end condition is satisfied, the process returns to step 11 and the control is performed so that the first game of the BB game is started again. On the other hand, if it is determined in step S44 that it is not yet satisfied, the process returns to step S32, and the special game control means 68 continues the second game.

  In addition, about the flow of RB game, illustration by a flowchart is abbreviate | omitted. When the RB game is entered, the processing after step S31 in FIG. 4 is performed. However, in the RB game, the process of step S43 (determination of whether or not the number of payouts exceeds the upper limit value) is not performed. In the RB game, when at least one of X = 0 or Y = 0 is satisfied in step S44, the RB game is controlled to end.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to embodiment mentioned above, For example, the following various deformation | transformation is possible.
(1) In this embodiment, medals are used as game media. However, the present invention can also be applied to slot machines that use game media other than medals, such as game balls.

  (2) In this embodiment, the winning probability of BB and RB when the number of inserted medals is 1 is set to 1/1500, and the winning probability of BB when the number of inserted medals is 3 is set to 1. / 240, RB winning probability was set to 1/360. However, the present invention is not limited to this, and any value can be set as long as the winning probability of the special combination when the number of inserted medals is one is set lower than the winning probability of the special combination when the number is three. good. However, in order to exert the effect of the present invention, as in the present embodiment, when the number of inserted medals is 1, the winning probability of the special role is 1/3 of the winning probability when the number is three. The following is preferable.

  (3) Similarly, in this embodiment, the winning combination probability when the number of inserted medals is 1 is set to 1 / 1.2, and the transitional combination when the number of inserted medals is 3 is set. The winning probability was set to 1/20. However, the present invention is not limited to this, and any value can be set as long as the winning probability of the transitional combination when the number of inserted medals is one is set higher than the winning probability of the transitional combination when the number is three. good. However, as in this embodiment, if the winning probability of the transitional combination when the number of inserted medals is one is set to a value close to 1, when the transition to the first game of the BB game is made, the transition is made immediately. It is preferable because the winning combination can be won and won and transferred to the second game.

  (4) In the present embodiment, in the second game of the BB game, only lottery for a predetermined role is performed. However, as in the first game, a lottery for a combination including a plurality of types of small roles may be performed.

  (5) The winning probability of each combination and the number of medals to be paid out at the time of winning are not limited to the above-described example. In particular, in the present invention, it is only necessary that the payout rate in the second game of the BB game is set higher than the payout rate in the first game. However, in order for the second game to be a more advantageous game for the player, it is preferable that the difference in the payout rate between the first game and the second game is larger. In the second game, it is preferable to set the payout rate high by setting the number of medals inserted to be small and setting the winning combination with a high probability to win and win.

(6) In the present embodiment, during the first game of the BB game, notification is made that the number of inserted medals should be one, but such notification may not be performed.
(7) In this embodiment, the BB game end condition is set when the number of acquired medals exceeds 465, but the present invention is not limited to this, and various conditions can be set.

It is a block diagram which shows the outline of control of the slot machine in this embodiment. It is a figure which shows the combination set in the combination lottery table and its winning probability. It is a flowchart which shows the flow of a process in BB game. It is a flowchart which shows the flow of a process in BB game, Comprising: It is a flowchart following FIG.

Explanation of symbols

10 slot machine 21 lamp 22 speaker 23 image display device 31 reel 32 motor 40 bet switch 41 start switch 42 stop switch 60 game control means 61 role lottery means 62 role lottery table 62a first role lottery table 62b second role lottery table 62c second 3-role lottery table 63 Special-role winning selection means 63a Special-role flag 64 Reel stop control means 65 Stop position determination table 66 Stop symbol determination means 67 Dispensing means 68 Special game control means 69 Production control means 69a Inserted number notification means

Claims (2)

A role lottery table that determines the winning probability of a role,
A role lottery means for drawing a role using the role lottery table;
Special game control means for controlling to execute a special game when a special combination is won by the combination lottery means during a normal game and the combination of symbols corresponding to the special combination is stopped on the active line,
In the special game control means, during the special game, a payout rate representing an expected value of the number of game media to be paid out with respect to the number of game media inserted per first game and one game is the first game. A game set higher than a game and controlled to execute a second game in which a lottery of a role including a predetermined role is performed by the role lottery means , and during the first game, the role lottery When the transition combination is won by means and the combination of symbols corresponding to the transition combination stops on the active line, the first game is shifted to the second game, and the number of games is set to the specified number during the second game. The predetermined number of game media paid out during the special game is an operation of shifting from the second game to the first game when the predetermined number of winnings of the predetermined role reaches a specified number. Control to repeat until reaching and before When the number of game media paid out during the special game reaches a predetermined number, and controlled to terminate the special game,
In the first game of the normal game and the special game, the number of inserted game media is set so that either n or m (n <m) can be selected, and the second game of the special game is selected. In the game, the number of game media inserted is set to n,
In the combination lottery table used in the normal game, the probability of winning the special combination when the number of game media inserted is the m is set to a1, and the number of game media inserted is the n. The probability of winning the special role is set to a2 (a2 <a1)
In the combination lottery table used in the first game of the special game, the probability of winning the transition combination when the number of game media input is the m is set to b1, and the input of game media The probability of winning the transition combination when the number is n is set to b2 (b2> b1),
During the normal game, the winning probability of the small role and the replay and the winning of the small role are so that the payout rate is higher when the number of inserted game media is m than when the number is n. The number of game media to be paid out is set,
During the first game of the special game, the winning probabilities of the small role and the transitional role are such that the winning rate is higher when the number of game media is n than when the number is m. and slot machine wherein the payout number of winning during a game medium of a small winning combination and transition combination is set. The slot machine according to claim 1, wherein
In the first game of the special game, there is provided slot control means for controlling so as to output an effect indicating that the number of inserted game media should be n.

Images