JP2001300001A - Slot machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance expectation for game after the end of BB game by keeping a player feeling a specified tension in the bonus game even during the BB game. SOLUTION: The slot machine is provided with a difference information value managing means 63 to manage a difference information value indicating the degree of difference between the number of dispensed medals and the number of slotted medals, a lottery table 62a for higher probability and a lottery table 62b for lower probability previously determining the winning probability of the roles which are used for the lottery of roles by a role lottery means 61, a lottery table switching means 64 adapted to use the lottery table 62b for lower probability when the difference information value exceeds a specified value and to use the lottery table 62a for higher probability when the difference information value is below the specified reference value and an initial difference information value setting means 68 to set an initial value for the difference information value in the game after the end of a special game and the like. The initial information value setting means 68 sets the difference information value below the specified reference value as initial value under a fixed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention can provide a player with an expectation during a special game.
The present invention relates to a slot machine that gives a player a certain profit.

[0002]

2. Description of the Related Art In a conventional slot machine, in a lottery of a role during a normal game, for example, a big bonus which is one of special roles is won and a combination of symbols of reels constituting the big bonus ("7 "-" 7 "-" 7 "
And the like) are aligned on the active line, a big bonus is won, and a game is shifted to a big bonus game which is one of special games. In the big bonus game,
First, a general game in the big bonus game is started, and when a combination of symbols constituting a shift combination for shifting to the bonus game is aligned on an active line during the general game, the game shifts to the bonus game.

[0003] In the bonus game, a gaming state is established in which a predetermined combination is won with a high probability. The bonus game is played until the winning of the predetermined combination reaches the specified number of winnings or the specified number of games, and when the conditions for ending the bonus game are satisfied, the bonus game is ended and the big bonus game is executed again. It returns to the inside general game. As described above, during the big bonus game, the transition from the general game to the bonus game and the transition from the bonus game to the general game are repeated until the end condition of the big bonus game is satisfied. Then, when the big bonus game ends, the game returns to the normal game.

[0004]

However, according to the above-mentioned conventional technique, first, the bonus game in the big bonus game is regarded as a simple digestion game, and the player is particularly nervous. I had no feeling. Secondly, in the normal game in which the game shifts after the end of the big bonus game, the player has no new expectation. Here, in addition to the case where the game is shifted to the normal game after the end of the big bonus game, there is known a game which shifts to a game with a privilege that gives a certain benefit to a player under a certain condition.

However, in a slot machine which shifts to a game with benefits under certain conditions, the number of payouts of a big bonus game must be set in consideration of the number of payouts of medals in games with benefits. For this reason, in the slot machine having the game with the privilege, the number of medals acquired in the big bonus game was smaller than that in the slot machine having no game with the privilege.

Therefore, the problem to be solved by the present invention is to provide a player with a specific feeling of tension even in a bonus game during the big bonus game, and to reduce the number of medals acquired during the big bonus game. Without doing this, it is to increase the sense of expectation in the game after the end of the big bonus game.

[0007]

The present invention solves the above-mentioned problems by the following means. (Claim 1) The invention of claim 1 manages a difference number information value which is a value representing a degree of a difference between the number of paid out medals and the number of inserted medals and calculated based on the number of paid out medals and the number of inserted medals. Difference number information value management means to be performed, a role lottery means for performing a lottery of the role, and is used for the lottery of the role by the role lottery means,
A first lottery table defining a winning probability of a role, and a first lottery table used for a lottery of a role by the role lottery means, wherein the winning probability of at least one role is determined by the first lottery table. The second lottery table, which is set higher than the winning probability of the combination, compares the difference number information value managed by the difference number information value management means with a predetermined reference value. When the value exceeds the value, the first lottery table is used for the lottery of the role by the role lottery means, and when the difference number information value is less than a predetermined reference value, the second lottery table is set to the role of the role lottery means. Lottery table switching means to be used for the lottery, and the condition that the combination of the symbols stopped on the activated line when the reels are stopped coincides with the combination of the symbols constituting the special combination. In the special game shifting means for shifting to another game, the special game ending means for ending the special game when it is determined that the ending condition of the special game is satisfied, and the game after the end of the special game, A difference number information value initial value setting means for setting an initial value, wherein the difference number information value initial value setting means sets a difference number information value less than a predetermined reference value to an initial value under a predetermined condition. It is characterized by the following.

In the present invention, the difference number information value management means calculates the difference number information value based on the payout number and the insertion number of medals during the game, and manages the difference information value. The lottery table switching means switches the lottery table used by the role lottery means based on the difference number information value managed by the difference number information value managing means. The lottery table switching means sets the difference number information value to a predetermined reference value (for example, 0
When the number exceeds the number of coins, the first lottery table is switched to a low winning probability of the winning combination, the number of paid out medals is reduced, and the difference number information value approaches the reference value. On the other hand, when the difference number information value is less than the predetermined reference value, the lottery table switching means switches to the second lottery table having a high winning probability of the hand, increases the number of payout medals, and increases the difference number information value. To approach the reference value.

When returning to the normal game again after the end of the special game, the difference number information value initial value setting means sets an initial value of the difference number information value. Here, the difference number information value initial value setting means sets the difference number information value that is less than a predetermined reference value to an initial value under a certain condition. Therefore, when such a difference number information value is set as an initial value, in the normal game after the end of the special game, for example, the winning probability of the combination increases, and the game in which the payout of medals is large continues.
As a result, without reducing the number of medals from normal,
You can expect to win the special role again. Further, by such a method, it is possible to provide a benefit to the player in the normal game after the end of the special game without reducing the number of payout medals during the special game.

(Claim 2) The invention of claim 2 is based on claim 1
Wherein the difference number information value initial value setting means selects any one of a plurality of difference number information value initial values based on a predetermined game result during a special game. It is characterized by the following. In the invention of claim 2, an initial value of the difference number information value is selected according to a predetermined game result during the special game. Therefore, the difference number information value initially set in the normal game after the end of the special game differs depending on the game result during the special game. Thereby, the initial value of the difference number information value reflecting the game result during the special game can be set.

(Claim 3) The invention of claim 3 is based on claim 2
In the slot machine described in the above, the special game is to perform a bonus game in which a predetermined winning combination with a high probability of winning is continued until the specified number of games or the specified number of winnings is reached, and a predetermined game result in the bonus game is determined. Bonus game result determination means, wherein the difference number information value initial value setting means selects an initial value of the difference number information value based on the determination result by the bonus game result determination means.

In the invention according to claim 3, the predetermined game result during the bonus game is determined by the bonus game result determination means, and based on the determination result, the difference number information value in the normal game after the end of the special game is determined. The initial value is selected. Therefore, since the initial value of the difference number information value is set to reflect the game result during the bonus game, a specific feeling of tension can be given to the player without being a monotonous game even in the bonus game.

(Claim 4) The invention of claim 4 is claim 3
In the slot machine described in the above, the difference number information value initial value setting means comprises a plurality of initial value lottery tables selected based on the number of games in which the predetermined combination did not win in the bonus game, each initial value lottery The table is characterized by having a plurality of initial values of difference number information values having different selection probabilities. In the invention according to claim 4, an initial value of the difference number information value is selected based on the number of games in which the predetermined combination has not been won in the bonus game. Therefore,
Tension can be given to the player by winning / non-winning of the predetermined combination during the bonus game.

(Claim 5) The invention of claim 5 is based on claim 1
Wherein the difference number information value initial value setting means selects an initial value from a plurality of initial values of difference number information values by lottery using random numbers. In the invention according to claim 5, the initial value of the difference number information value is set by a lottery using a random number. Therefore, during a special game or at the end of a special game, for example,
If the initial value of the selected difference number information value is notified to the player, the player can be given a sense of expectation and tension until the notification is made.

(Claim 6) The invention of claim 6 is claim 1
6. The slot machine according to any one of claims 1 to 5, wherein the difference number information value initial value setting means selects any one of a plurality of difference number information value initial values, Of the initial values of a plurality of difference number information values,
At least one is a value less than a predetermined reference value;
At least one other is a value equal to a predetermined reference value.

In the invention of claim 6, among the initial values of the selected difference number information value, there are an initial value less than a predetermined reference value and an initial value equal to the predetermined reference value. Therefore, when the former initial value is selected, in the normal game after the end of the special game, for example, the winning probability of the role increases, and the game in which medals are frequently paid out continues. On the other hand, when the latter initial value is selected, in the normal game after the end of the special game, the general game state continues. Therefore, by selecting the initial value of the difference number information value,
In the normal game after the end of the special game, a game in which a certain profit is provided to the player and a game in which no profit is provided can be provided.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an outline of control of the slot machine in the present embodiment. The game control means 60 of the slot machine 10 is a means for integrally controlling the entire slot machine 10 including the progress and effects of the game of the slot machine 10. The game control means 60 includes a CPU for performing calculations and the like, and a ROM for storing programs necessary for the progress of the game and the like, data for effects, and the like.
And a RAM for temporarily storing the data and the like when the CPU performs various controls.

Output side of game control means 60 (right side in the figure)
Are electrically connected to peripheral devices such as a motor 32 described below. The motor 32 is for rotating the reel 31, is connected to the rotation center of the reel 31, and is controlled by the game control means 60.

The reel 31 has a ring shape, and has an outer peripheral surface to which a reel tape on which a plurality of types of symbols (eg, symbols constituting a winning combination) are printed is attached. In this embodiment, three reels 31 are provided in parallel. Each reel 31 is arranged so that three vertically consecutive symbols can be seen from a display window (not shown) provided on the front panel of the slot machine 10. Then, when the reel 31 is rotated by the motor 32, the symbol on the reel 31 is moved and displayed in the display window at a predetermined speed in the vertical direction.

The winning combinations include, for example, special combinations, multiple types of small combinations, and replays (hereinafter abbreviated as RP). The special role is a role for shifting from a normal game to a special game (a game advantageous to the player), and includes a big bonus (hereinafter abbreviated as BB), a regular bonus (hereinafter abbreviated as RB), and A single bonus (hereinafter, abbreviated as SB) is given.

BB is a role of shifting to a BB game which is one of special games. The BB game is a game in which a general game is played within a predetermined number of games, and during this general game, a transition to a bonus game can be made on condition of winning a shift combination for shifting to a bonus game. The bonus game is a game in which a predetermined combination is won with a high probability by a predetermined number of winnings or a predetermined number of games. Then, the general game and the bonus game are repeated until the number of times of the general game reaches the predetermined number or the number of transitions from the general game to the bonus game reaches the predetermined number.

RB is R which is one of special games.
It is a role to shift to the B game. RB game is BB
One set of a game corresponding to a bonus game in the game, that is, a game in which a predetermined combination is won with a high probability is performed a predetermined number of times under a predetermined condition. Furthermore, S
B is a role of shifting to an SB game which is one of special games. The SB game is a game in which a predetermined combination in the above-mentioned bonus game is won with a high probability, and only one game can be played.

The small combination is a combination in which a predetermined number of medals are paid out. Furthermore, the RP is a re-game combination, and is a combination that enables a re-game to be performed while maintaining the number of inserted medals (the number of bets) in the game.

The combinations of the symbols on the reel 31 corresponding to the above various combinations are predetermined. Then, when all the reels 31 are stopped, if the combination of the symbols stopped on the activated line matches the combination of the symbols of the predetermined combination, the winning combination is won.

Here, for example, five effective lines are set in a portion including the display window of the front panel. This effective line is composed of three lines in the upper, middle, and lower stages in the horizontal direction, and two lines in the diagonally downward and rightward directions. Then, the three symbols continuous from above and below the reel 31 seen from each display window are located on three effective lines in the upper, middle, and lower rows in the horizontal direction. This activated line is activated according to the number of inserted medals. When the number of inserted medals is one, the middle one in the horizontal direction
In the case of two effective lines, three effective lines in the horizontal direction when the number is two and all five effective lines when the number is three.

Further, the following peripheral devices are electrically connected to the input side (the left side in the figure) of the game control means 60. The start switch 41 indicates that the player
This is a switch operated when starting one rotation. The stop switch 42 is a switch that is arranged in parallel for each reel 31 independently and is operated by a player when the rotation of each reel 31 is stopped.

In a normal game, a player inserts medals from a medal insertion slot (not shown) or activates an activated line by operating a bet switch (not shown), and turns on a start switch 41. I do. Thereby, all the reels 31 are started. Then, the player stops the rotation of each reel 31 by pressing each stop switch 42. Here, when the combination of the symbols of the reels 31 stopped on the activated line matches a predetermined combination of symbols of some combination, a winning is achieved, and medals are paid out according to the established combination. For example, BB, one of the special roles
Is assumed to be "7"-"7"-"7", the symbol "7" of each reel 31 stops on any one of the activated lines when all the reels 31 are stopped. If it is, the BB wins.

The game control means 60 includes the following means. The following means in the present embodiment are exemplifications, and the game control means 60 is not limited to the means shown in the present embodiment. (Position Lottery Means) The role lottery means 61 performs lottery of a role (special role such as BB, small role or RP). The role lottery means 61 includes, for example, a random number generating means (hard random number or the like) for a role lottery, a random number extracting means for extracting a random number generated by the random number generating means, and a random number value extracted by the random number extracting means. There is provided determination means for determining the presence or absence of a winning combination and determining the winning combination.

The random number generation means of the combination lottery means 61 generates random numbers in a predetermined area (for example, 0 to 65535 in decimal system). 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 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 lottery table 62 (described later). For example, if the extracted random number value belongs to the BB winning area, it is determined that the BB has been won, and if it belongs to the non-winning area, it is determined that it has not been won.

(Lottery Table) The lottery table 62 is used when the lottery means 61 performs a lottery of a role. The lottery table 62 has a random number area (0 to 6553 in the above example) taken by the random number generation unit of the combination lottery unit 61.
5), and each area is divided into a BB winning area, a non-winning area, and the like. These areas are set in advance so that various winning combinations have a predetermined winning probability.

In the present embodiment, the lottery table 62
There are various types of lottery tables 62a and a low probability lottery table 62b. Here, the high-probability lottery table 62a corresponds to the second lottery table in the present invention, and the low-probability lottery table 62a
b corresponds to the first lottery table in the present invention. Furthermore, in the high-probability lottery table 62a and the low-probability lottery table 62b, the winning probability of the special role and the RP is the same, but the winning probability of the specific small role among the small roles is set to be different. . For example, in the high-probability lottery table 62a, the winning probability of the specific small win is set to 1/4, whereas in the low-probability lottery table 62b, the winning probability of the specific small win is set to 1/8. ing. In addition,
Without setting in this way, the winning probabilities of a plurality of roles may be different.

FIG. 2 is a view showing expected values when the high-probability lottery table 62a and the low-probability lottery table 62b are used in a normal game. The expected value indicates the number of payouts (returns) per one inserted medal. In the high probability lottery table 62a, the expected value is 0.45, whereas the low probability lottery table 62a
In b, the expected value is set to 0.35 sheets.

(Difference Number Information Value Management Means) The difference number information value management means 63 is a value indicating the degree of difference between the number of paid out medals and the number of inserted medals, and is calculated based on the number of paid out medals and the number of inserted medals. It manages the information on the number of difference sheets. In the present embodiment, the difference number information management unit 63 includes an inserted medal number counting unit 63a, a payout medal number counting unit 63b, and a difference number information value calculating unit 63c.

At the start of the game, a medal is inserted by the player. Then, in accordance with the game result, for example, when a small winning combination is won, a number of medals corresponding to the small winning combination are paid out. Thus, during the game, the insertion of medals from the player and the payout of medals from the slot machine 10 are continuously performed. Then, the inserted medal number counting means 63a counts the number of medals inserted by the player. Also, the payout medal number counting means 6
3b counts the number of medals paid out from the slot machine 10.

Further, the difference number information value managing means 63 adds 1 to the number of inserted medals every time the inserted medal number counting means 63a counts that one medal has been inserted. Further, every time one payout of one medal is counted by the payout medal number counting means 63b, 1 is added to the payout number. Next, the difference number information value calculating means 63c calculates the difference number information value based on the payout number and the insertion number of medals. This difference number information value is calculated for each game, and the difference number information value management means 63
Manages the calculated difference number information value.

(Difference Number Information Value) In this embodiment, the difference number information value is calculated as follows. (Equation 1) Difference number information value = Number of payouts−Number of inserts × Inclination data / 256 Here, “inclination data” is a value that differs for each set value of the payout rate of the slot machine 10. In this embodiment,
The set value of the payout rate of the slot machine 10 is provided in six stages (setting 1 to setting 6), and the payout rate is set higher as the set value is higher. At this time, the inclination data for each setting value is defined as, for example, 97 for setting 1, 98 for setting 2 and setting 3, 100 for setting 4, 102 for setting 5, and 105 for setting 6. .

For example, when the payout rate is set to setting 4, when three medals are inserted in a certain game, and no role is won (when no medals are paid out). Is, the difference number information value n in the game is as follows: difference number information value n = 0−3 × 100/256. Then, assuming that the difference number information value up to the previous game is N, the difference number information value N 'up to the game is N' = N + n.

The difference number information value is calculated for each game and is updated sequentially.
At the time of winning, the calculation (update) of the difference number information value is not performed.
When the data stored in the RAM is initialized when the power is turned on, when the set value of the payout rate of the slot machine 10 is changed (when the switch for changing the set value is operated), one of the special games is performed. At the end of a certain BB game, the difference number information value is set to an initial value. Here, when the power is turned on or when the set value of the payout rate is changed, the initial value of the difference number information value is set to a predetermined reference value (0 in the present embodiment). In contrast,
At the end of the BB game, an initial value of the difference number information value is set by the difference number information value initial value setting means 68 described later,
There is a case where a value different from the predetermined reference value is set.

(Lottery Table Switching Means) The lottery table switching means 64 controls the lottery table used by the role lottery means 61 based on the difference number information value managed by the difference number information value management means 63. It is.
In the present embodiment, the lottery table switching means 64 compares the difference number information value with a predetermined reference value. As a result of this comparison, when the difference number information value is less than the reference value, in order to increase the winning probability of the role and bring the difference number information value closer to the reference value,
The lottery table switching means 64 switches the lottery table used by the role lottery means 61 to the high probability lottery table 62a.

On the other hand, when the difference number information value exceeds the reference value, the lottery table switching means 64 controls the lottery lottery means 61 to lower the winning probability of the hand and bring the difference number information value closer to the reference value. The lottery table to be used is switched to the low probability lottery table 62b.

FIG. 3A is a graph showing the medal reduction rate in a graph. In FIG. 3A, the horizontal axis indicates the number of games, and the vertical axis indicates the difference number (the number obtained by subtracting the number of inserted medals from the number of paid out medals). Also, the solid line indicates the reduction rate of medals in an actual game, and the broken line indicates the reference reduction rate.
FIG. 3B is a graph showing the relationship between the number of games and the difference number information value. In FIG. 3B, the horizontal axis is
The number of games is shown, and the vertical axis shows the difference number information value calculated by the above equation 1.

As shown in FIG. 3A, the reference reduction rate is
Each time the number of games increases, the difference number is set to decrease at a predetermined rate (so that the number of inserted medals is larger than the number of paid out medals). However, the reduction rate in the actual game does not always match the reference reduction rate.

In FIG. 3B, the predetermined reference value in this embodiment is set to 0 (sheets). Therefore, when the difference number information value becomes a negative value,
The selection is switched to the high probability lottery table 62a. As a result, the number of wins of the specific small win increases, and the difference number information value in the actual game gradually approaches zero. On the other hand, when the game is continued using the high-probability lottery table 62a, the difference number information value becomes a positive value. When the difference number information value becomes a positive value, the low probability lottery table 6 is again set.
2b. As a result, the winning of the specific small win decreases, and the difference number information value gradually approaches zero. When the power is turned on, the initial value of the difference number information value is set to 0, and in the first game after the power is turned on, the low probability lottery table 62b is selected.

(Special game transfer means) Special game transfer means 6
5 is, for example, "7"-"7"-"7" on condition that the combination of symbols stopped on the activated line when the reel 31 stops is identical to the combination of symbols constituting the special combination.
When the combination of symbols is aligned with any of the activated lines, the normal game is shifted to the BB game which is one of the special games.

(Special Game Game Control Means) The special game game control means 66 controls the progress of the game during the special game. For example, when the special game is a BB game, a means for counting the number of general games in the BB game, a means for counting the number of winnings and the number of games of a predetermined combination in each bonus game in the BB game, A means for counting the number of transitions from a game to a bonus game is provided. Further, in the present embodiment, there is provided a means for counting the number of games in which the predetermined combination has not won (the number of predetermined combination non-prize-winning games) through all the bonus games.

(Special game ending means) Special game ending means 6
Numeral 7 determines whether or not a special game end condition is satisfied. If it is determined that the special game end condition is satisfied, control is performed to end the special game. For example, when the special game is a BB game, when the number of general games in the BB game reaches the specified number, or when the number of transitions from the general game to the bonus game in the BB game is the specified number of times, the bonus game ends. When it is determined that the end condition of the BB game is satisfied,
Control is performed to end the BB game.

(Difference Number Information Value Initial Value Setting Means) Difference number information value initial value setting means 68 sets an initial value of the difference number information value in the game after the end of the special game (BB game in this embodiment). Is what you do. Here, after the end of the special game, the difference number information value is usually set to 0 (the same value as the reference value). However, in the present invention, under a certain condition, a value less than the reference value is set as the initial value of the difference number information value. In the present embodiment, the initial value of the difference number information value is 0.
, -32, -64, and -128. That is, one of the initial values of the four types of difference number information values has the same value as the reference value (zero), but the other three values are less than the reference value. The difference number information value initial value setting means 68 selects one of the difference number information value initial values by lottery according to the game result of the bonus game in the BB game.

FIG. 4 is a diagram showing theoretical values at each initial value of the difference number information value. FIG. 4 shows the number of games that can be performed with 50 medals and the probability of winning a special role with 50 medals for each initial value of the difference number information value. Normal,
When the initial value of the difference number information value is 0, the medal 50
The number of games (expected value) that can be performed with one sheet is 31.69 times,
The special role winning probability with 50 medals is 19.10
%.

On the other hand, for example, when the initial value of the difference number information value is −128, which is the smallest value, the number of games that can be performed with 50 medals is 112.83, and Has a special role election probability of 52.99%
It is. As described above, the smaller the initial value of the difference number information value, the more advantageous to the player. That is, the fact that the initial value of the difference number information value is less than the reference value means that the number of inserted medals is larger than the number of paid out medals. For this reason, when such a difference number information value is set as an initial value, the slot machine 10 performs lottery selection using the high probability lottery table 62a until the difference number information value becomes zero. , The winning probability of the role increases.

The difference number information value initial value setting means 68
In the present embodiment, the bonus game result determination means 68
a, a first initial value lottery table 68b, and a second initial value lottery table 68c. The bonus game result determination means 68a is provided by the game control means 66 during special game.
From the count results of the number of games in which the predetermined combination did not win in all the bonus games in the game (the number of predetermined combination non-prize games), whether the number of non-prize games is 0 to 5 or 6 to
It is determined whether the number is 27 times.

As described above, in the BB game, it is possible to shift to the bonus game a predetermined number of times, and in this bonus game, a predetermined winning combination with a high probability is played a predetermined number of times under a certain condition. Things. Here, the maximum number of times that the player can shift to the bonus game during the BB game is three times. Also, one bonus game is played until a maximum of nine games are played or a predetermined combination is won eight times. At this time, the minimum value of the number of non-prize-winning games of the predetermined combination becomes 0 and the maximum value becomes 27 through the three bonus games.

FIG. 5 is a diagram for explaining three bonus games in the BB game and winning modes thereof as an example.
In FIG. 5, “○” indicates a game in which the predetermined combination has won in the bonus game, and “×” indicates a game in which the predetermined combination has not won. In Example 1 of FIG. 5, in the first bonus game, the predetermined winning combination is non-winning in the first six games consecutively, and thereafter, the predetermined winning combination wins three times in succession. However, since the number of games reaches nine times, This shows a state in which the bonus game has been completed.

In the second and third bonus games, the predetermined combination wins in all the games, reaches the maximum number of winnings of eight, and ends the bonus game without performing the ninth game. The state is shown. Therefore, in the case of Example 1, the non-winning number is counted as six.

On the other hand, in Example 2, in the first bonus game, the fourth and ninth games do not win, and in the second bonus game, the first game does not win, and the third bonus game does. Shows a state in which no winning has been achieved in the second to fourth games. Therefore, in the case of Example 2, the non-winning number is counted as six.

However, focusing on the total number of winnings in the bonus game in each of Examples 1 and 2, the number is 19 in Example 1 and 21 in Example 2. Here, in all three bonus games, if the predetermined combination is the maximum number of winnings of eight, a total of 24 predetermined combinations are won. Therefore, the number of winning losses of the predetermined combination is five in the case of Example 1 and three in the case of Example 2.

The number of medals paid out at the time of winning the predetermined combination is 15
In the case of Example 1, the number of lost cards with respect to the maximum number of obtained medals in the bonus game is 75 (15 sheets ×
5), and in the case of Example 2, the number is 45 (15 × 3). As described above, depending on the timing at which the non-prize-winning game of the predetermined combination appears during the bonus game, the number of wins of the predetermined combination is the same, but the number of non-wins may be five or six. Furthermore, as in the above example, the number of non-winning games is the same at six times, but the number of medals obtained in the bonus game may be different.

Then, the bonus game result determination means 68
“a” determines from the count result of the predetermined combination non-prize-winning game number whether the predetermined combination non-prize-winning game number belongs to a range of 0 to 5 or 6 to 27. Further, based on the result of the determination, the difference number information value initial value setting means 68 selects the first initial value lottery table 68b when the number of predetermined combination non-winning games belongs to the range of 0 to 5, and selects the predetermined combination. When the number of winning games belongs to the range of 6 to 27 times, the second initial value lottery table 68c is selected.

FIG. 6 is a diagram showing the selection probabilities of the initial values of the difference number information values of the first initial value lottery table 68b and the second initial value lottery table 68c. In the first initial value lottery table 68b, the probability of selecting the zero difference number information value as the initial value is the highest, that is, 50%. The probability of selecting the number information value as the initial value is only 2%.

On the other hand, the second initial value lottery table 68
In c, the probability that the difference information value of −64 is selected as the initial value is 40%, which is the highest, and the difference information value of 0 is selected as the initial value, as opposed to the first initial value lottery table 68b. The lowest probability is 15%. Thus, B
In the bonus game during the B game, when the number of predetermined non-prize-winning games is small, the probability that a small difference number information value is selected as an initial value decreases. On the other hand, when the number of times of the predetermined combination non-winning game is large, the probability that the small number difference information value is selected as the initial value increases.

The difference number information value initial value setting means 68 includes a first
After selecting the initial value lottery table 68b or the second initial value lottery table 68c, an initial value of the difference number information value is selected using random numbers. As a selection method, a random number generation unit, a random number extraction unit, and a determination unit similar to the above-mentioned combination lottery unit 61 may be provided. Then, the extracted random number value is set to the first
The initial value lottery table 68b or the second initial value lottery table 68c may be checked to determine the initial value of the difference number information value corresponding to the area to which the random value belongs.

When the initial value of the difference number information value is selected, the difference number information value initial value setting means 68 writes the difference number information value (initial value) into a RAM or the like which stores the difference number information value. Here, as described above, the difference number information value is not calculated during the special game, but the difference number information value until immediately before the transition to the special game is calculated and stored. Therefore, the difference number information value is deleted or the difference number information value is overwritten.

As described above, by determining the initial value of the difference number information value, an advantage / disadvantage occurs depending on the timing at which the non-winning game of the predetermined combination appears during the bonus game. Thereby, the player always pays attention to the number of winning / non-winning of the predetermined combination and the timing thereof even during the bonus game, so that the tension is maintained even during the bonus game. When a small value is selected as the initial value of the difference number information value, in the normal game after the end of the BB game, the high probability lottery table 62 is used for a while.
Since “a” is continuously selected, it is possible to expect the BB to be won again without reducing the number of medals from the normal time.

Although not shown, the game control means 60
Comprises reel stop control means, winning detection means, payout means, and the like. The reel stop control means determines the stop position of the reel 31 from the game state (normal game state, special game state, etc.), the lottery result of the role lottery means 61, the timing when the stop switch 42 is turned on, and the like. At the same time, the reel 31 is controlled to stop at the determined position.

The reel stop control means selects a predetermined stop position determination table corresponding to the lottery result of the combination lottery means 61 and the like. When the stop switch 42 is turned on, the stop position determination table is determined based on the timing. The stop position of the reel 31 is determined with reference to this. Note that the stop position of the reel 31 may be determined without using the stop position determination table. For example, when the stop switch 42 is turned on, it is possible to search for a stoppable position and determine an appropriate stop position within the range of the stoppable position.

The reel stop control means includes a motor 3
2 to control the reel 31 to stop at a predetermined position. Here, when any combination is won by the combination lottery means 61, the combination of the symbols on the reel 31 corresponding to the winning combination is controlled so as to stop on the activated line as much as possible. In addition, when the lottery means 61 does not win in the lottery, the reel 31 is controlled to stop so that any combination of symbols of the role does not stop on the activated line.

When the reel 31 is stopped, the winning detection means
It is to detect whether or not the combination of the symbols stopped on any of the activated lines matches the combination of the symbols constituting any of the predetermined combinations. The prize detecting means detects, for example, the angle when the motor 32 is stopped,
The symbols on the activated line are determined, and based on this, the presence / absence of a winning combination is detected.

The payout means, when it is detected by the prize detecting means that the combination of the symbols stopped on the activated line when the reel 31 is stopped coincides with the combination of the symbols of any of the combinations, the payout unit is provided in accordance with the established combination. This controls the payout of a predetermined number of medals to the player. Note that RP
At the time of winning, the number of medals inserted in the game is controlled to be automatically inserted without paying out medals.

Next, the flow of the processing of this embodiment will be described with reference to the flowchart. FIG. 7 is a flowchart illustrating the flow of processing until the initial value of the difference number information value is set after the end of the BB game.

First, in step S1 of FIG. 7, when the normal game is started, in the next step S2, the winning detection means continues to detect the winning of BB. When the winning detection means detects that the combination of the symbols stopped on the activated line coincides with the combination of the symbols of BB when all the reels 31 are stopped, the process proceeds to step S3. Step S3
Then, the game is shifted to the BB game by the special game shifting means 65, and the special game in-game control means 66 progresses the game during the BB game. Further, as described above, the special game control unit 66 counts the number of non-prize winning games in the bonus game.

In the next step S4, the special game ending means 67 continues to determine whether or not the BB game ending condition is satisfied. Then, when the number of general games in the BB game has reached the specified number, or when the number of transitions to the bonus game in the BB game is the specified number of bonus games ends,
The special game ending means 67 determines that the BB game ending condition is satisfied, and proceeds to step S5. In step S5,
The bonus game result determination means 68a of the difference number initial value setting means 68 determines whether or not the number of predetermined role non-winning games in the bonus game in the BB game is 0 to 5 times. If it is determined that the number of predetermined role non-winning games is 0 to 5, the process proceeds to step S6. If it is determined that the number of predetermined role non-winning games is not 0 to 5, the process proceeds to step S7.

In step S6, the difference number information initial value setting means 68 performs lottery of the initial value of the difference number information value using the first initial value lottery table 68b. On the other hand, step S
In 7, the difference number information initial value setting means 68 performs a lottery of the initial value of the difference number information value using the second initial value lottery table 68c. Then, after the lottery in step S6 or step S7, the process proceeds to step S8, and the initial value of the selected difference number information value is set. When the initial value of the difference number information value is set, the process returns to the normal game of step S1.

FIGS. 8 and 9 are flowcharts illustrating the flow of the process of calculating the difference number information value and switching the lottery table used by the winning lottery means 61 in the normal game. FIG. 9 is a flowchart following FIG. First,
In step S11 in FIG. 8, the lottery table switching means 64 compares the difference number information value with a predetermined reference value (0 in this embodiment) and determines whether the difference number information value is equal to or greater than the reference value. Judge.

When it is determined that the difference number information value is equal to or larger than the reference value, the process proceeds to step S12, and the lottery table switching means 64 includes the low probability lottery table 62b in Is set. On the other hand, if it is determined in step S11 that the difference number information value is not greater than or equal to the reference value, the process proceeds to step S13, and the lottery table switching means 64 sets the lottery table used in the lottery selection of the role 62
Set a.

Then, step S12 or step S1
When the lottery table is set in step 3, the process proceeds to step S14, where the game control unit 60 continues to detect the insertion of medals, and when the insertion of medals is detected, the process proceeds to step S15, where the inserted medal number counting unit 63a sets the The number of medals is counted. In the next step S16,
The game control means 60 controls the start switch 4 by the player.
If the start switch 41 is turned on, the process proceeds to step S17, where the role lottery means 61 uses the lottery table selected in step S12 or step S13, respectively. , Draw lots.

Next, proceeding to step S18, the game control means 60 continues to detect whether or not the stop switch 42 has been turned on by the player. If the stop switch 42 has been detected, the flow proceeds to step S19, in which the game control means 60 stops reeling. The control means stops the reel 31 corresponding to the stop switch 42 at a predetermined position based on the lottery result of the combination lottery means 61 and the like.

Next, proceeding to step S20 in FIG. 9, the game control means 60 determines whether or not all the reels 31 have stopped. If it is determined that the vehicle has not stopped, the process proceeds to step S
Returning to 18, the detection of whether or not the stop switch 42 is turned on is continued. On the other hand, if it is determined in step S20 that all the reels 31 have stopped, the process proceeds to step S20.
The game proceeds to 21, where the winning detection means of the game control means 60 detects the presence or absence of a winning combination. If a winning combination is detected here, the process proceeds to step S22, the payout unit of the game control unit 60 performs processing such as payout of medals according to the winning combination, and proceeds to step S23. On the other hand, if no winning combination is detected in step S21, the process of step S22 is skipped and the process proceeds to step S23.

In step S23, the payout number counting means 63b counts the number of paid out medals. For example, when winning of 15 small wins is detected in step S21 and 15 medals are paid out in step S22, the number is counted as 15. Next, step S24
The difference number information value calculating means 63c proceeds to step S1.
5. The number of inserted medals counted in step 5, and step S2
From the number of payouts counted in 3, the above (Equation 1)
, The difference number information value up to the game is calculated. Then, the process returns to step S11 in FIG.

While the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications as described below are possible. (1) In the present embodiment, as the initial value of the difference number information value,
Although four types have been described as examples, the present invention is not limited to this, and any number may be provided. Further, all of the initial values of the difference number information value may be values less than the reference value. Alternatively, a value exceeding the reference value may be provided in part.

(2) By comparing the difference number information value with the reference value, the lottery table used by the role lottery means 61 is switched depending on whether the difference number information value exceeds the reference value or is less than the reference value. I made it. Here, in this embodiment, the reference value is set to zero, but may be set to any value. Further, a fixed width may be provided for the reference value. For example,
The reference value is set to -10 to +10, and when it exceeds +10, the low probability lottery table 62b is selected.
If less than -10 sheets, high probability lottery table 62a
May be selected.

(3) In the present embodiment, the initial value of the difference number information value is selected based on the number of non-winning games of the predetermined combination in the bonus game in the BB game. However, the present invention is not limited to this. Even if the initial value of the difference number information value is set based on the number of non-prize-winning games or the number of small-prize winnings in the general game during the BB game, the number of medals acquired in the BB game, good. Further, the setting of the initial value of the difference number information value is not limited to the lottery, and a predetermined value may be selected based on a game result during the BB game.

(4) The difference number information value is not limited to the value calculated by the equation shown in (Equation 1) of the present embodiment, but the number of medals paid out, the number inserted, the number of games, the slot machine 10 The difference number information value can be calculated by various methods in consideration of the set value and the like. Also, if the formula for calculating the difference number information value is different, the reference value will also be different. Depending on the method of calculating the difference number information value, the reference value may be a positive value or a negative value.

(5) In the present embodiment, two lottery tables, a high probability lottery table 62a and a low probability lottery table 62b, are provided as lottery tables used in the lottery of the role of the role lottery means 61. However, without being limited to this, another lottery table may be provided, and switching may be performed based on the difference number information value. Further, when the initial value of the difference number information value is set to a value less than the reference value, a dedicated lottery table may be provided in advance at that time, and the lottery of the hand may be performed using the lottery table. . For example, it is possible to use a lottery table in which the winning probability of a combination is set higher than that of the high probability lottery table 62a.

(6) When the initial value of the difference number information value is selected, it is possible to prevent the player from knowing what initial value has been selected. Thus, the contents regarding the initial value of the difference number information value may be notified to the player. As a means for notifying, output of a specific sound, lighting of a specific pattern of lamps,
Alternatively, an image display by a liquid crystal display device or the like can be given.

(7) In the present embodiment, the initial value of the difference number information value is set by the difference number information value initial value setting means 68 in the game after the end of the BB game. However, the present invention is not limited to this. When the power is turned on or when the set value of the payout rate is changed, the initial value of the difference number information value is set by the difference number information value initial value setting means 68. May be set as the initial value. For example, when the power is turned on, the initial value of the difference information value is set by the difference information value initial value setting means 68, and a value less than the reference value may be set as the initial value in addition to the reference value. To In this way, when the power is turned on,
A value less than the reference value is set as the initial value of the difference number information value, and a mode in which the high probability lottery table 62a is selected from the first game after the power is turned on can be created.

[0085]

According to the first aspect of the present invention,
When a value less than the reference value is set as the initial value of the difference number information value, in the normal game after the end of the special game, for example,
The winning probability of the role is increased, and a game in which a lot of medals are paid out continues. As a result, it is possible to expect the special role to be won again without reducing the number of medals from the normal time. Further, by such a method, it is possible to provide a benefit to the player in the normal game after the end of the special game without reducing the number of payout medals during the special game.

(Claim 2) According to the invention of claim 2, the difference information value initially set in the normal game after the end of the special game differs depending on the game result during the special game. . Thereby, the initial value of the difference number information value reflecting the game result during the special game can be set.

(Claim 3) According to the invention of claim 3, since the initial value of the difference number information value is set by reflecting the game result during the bonus game, the game is not monotonous even in the bonus game. A specific tension can be given to the player. (Claim 4) According to the invention of claim 4, it is possible to give a sense of tension to the player by winning / non-winning of the predetermined combination during the bonus game.

(Claim 5) According to the invention of claim 5, if the initial value of the selected difference number information value is notified to the player during the special game or at the end of the special game, for example,
Until the notification is given, it is possible to give the player a sense of expectation and tension. (Claim 6) According to the invention of claim 6,
By selecting the initial value of the difference number information value, in the normal game after the end of the special game, it is possible to provide a game in which a certain profit is provided to the player and a game in which no profit is provided.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of control of a slot machine according to the embodiment.

FIG. 2 is a diagram showing expected values when a high-probability lottery table and a low-probability lottery table are used in a normal game.

FIG. 3A is a graph showing a medal reduction rate in a graph, and FIG. 3B is a graph showing a relationship between the number of games and the difference number information value.

FIG. 4 is a diagram showing theoretical values at respective initial values of difference number information values.

FIG. 5 is a diagram illustrating three bonus games in a BB game and a winning mode thereof as an example.

FIG. 6 is a diagram illustrating selection probabilities of initial values of difference number information values in a first initial value lottery table and a second initial value lottery table.

FIG. 7 is a flowchart illustrating a flow of a process until the initial value of the difference number information value is set after the BB game ends.

FIG. 8 is a flowchart illustrating a flow of a process of calculating a difference number information value and switching a lottery table used by the winning lottery means in a normal game.

9 is a flowchart illustrating a flow of a process of calculating a difference number information value and switching a lottery table used by the winning lottery means in a normal game, and is a flowchart subsequent to FIG. 8;

[Explanation of symbols]

 Reference Signs List 10 slot machine 31 reel 32 motor 41 start switch 42 stop switch 60 game control means 61 role lottery means 62 lottery table 62a high probability lottery table (second lottery table) 62b low probability lottery table (first lottery table) 63 difference Number information value management means 63a Inserted medal number counting means 63b Payout medal number counting means 63c Difference number information value calculating means 64 Lottery table switching means 65 Special game transfer means 66 Special game control means 67 Special game end means 68 Difference number information Value initial value setting means 68a bonus game result determination means 68b first initial value lottery table 68c second initial value lottery table

Claims (6)

[Claims] 1. A difference number information value management means for managing a difference number information value which is a value indicating a degree of a difference between a payout number and a insertion number of medals and calculated based on the payout number and the insertion number of medals. A role lottery means for performing a role lottery, a first lottery table used for the role lottery by the role lottery means, and a winning probability of the role, and a role lottery used for the role lottery by the role lottery means; A second lottery table in which the winning probability of at least one role is set higher than the winning probability of the role in the first lottery table, and managed by the difference number information value managing means. The difference number information value is compared with a predetermined reference value. If the difference number information value exceeds a predetermined reference value, the first lottery table is used for the lottery of the role by the role lottery means. Information value is a predetermined standard A lottery table switching means for using the second lottery table for the lottery of the role by the role lottery means if the number of symbols is less than the symbol drawn on the activated line when the reels are stopped. Special game transition means for transitioning from a normal game to a special game on condition that they match the combination of the special game; special game termination means for terminating the special game when it is determined that the termination condition of the special game is satisfied; In the game after the end of the game, comprises a difference number information value initial value setting means for setting an initial value of the difference number information value, the difference number information value initial value setting means, under a certain condition, a predetermined reference value A slot number information value less than the initial value. 2. The slot machine according to claim 1, wherein the difference number information value initial value setting means selects one of a plurality of difference number information value initial values based on a predetermined game result during a special game. A slot machine characterized by selecting one of the initial values. 3. The slot machine according to claim 2, wherein the special game is a bonus game in which a game in which a predetermined combination wins with a high probability is continued until a predetermined number of games or a predetermined number of winnings is reached. A bonus game result determining unit that determines a predetermined game result in the game; the difference number information value initial value setting unit selects an initial value of the difference number information value based on a determination result by the bonus game result determining unit. A slot machine characterized by: 4. The slot machine according to claim 3, wherein the number-of-differences information value initial value setting means selects a plurality of initial value lottery tables selected based on the number of games in which the predetermined combination has not been won in the bonus game. Wherein each of the initial value lottery tables has a plurality of initial values of difference number information values having different selection probabilities. 5. The slot machine according to claim 1, wherein the difference number information value initial value setting means selects an initial value from among a plurality of difference number information value initial values by a lottery using random numbers. A slot machine characterized in that: 6. Any one of claims 1 to 5
In the slot machine described in the paragraph, the difference number information value initial value setting means selects any one of the plurality of difference number information value initial values from among a plurality of difference number information value initial values, and sets a plurality of difference number information value initial values. Wherein at least one is a value less than a predetermined reference value, and at least another is a value equal to the predetermined reference value.