JP2003000805A - Slot machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the game property of a game machine and interest to a game of the player. SOLUTION: Three kinds of symbol combinations of 'red 7, red 7 and red 7', 'blue 7, blue 7 and blue 7' and 'white 7, white 7 and white 7' are made respectively correspondent to individual big bounses BB1, BB2 and BB3. For the individual big bonuses BB1, BB2 and BB3, the same drawing table is used, and concerning the number of the restriction times of a regular bonus, respectively different numbers of times such as three times for BB1, twice for BB2 and once for BB3 are set. Thus, an expectation value to the regular bonus of the player is varied depending on which of the symbol combinations are established by this.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when a plurality of symbol columns are moved and displayed, the movement display of each symbol column is sequentially stopped. The present invention relates to a slot machine in which winning or losing is decided by a combination of symbols established at a predetermined position in a row, and particularly, the present invention is designed to execute a special game in which a winning is established with a high probability when a specific symbol combination is established. Related to the slot machine set to.

[0002]

2. Description of the Related Art In a typical conventional slot machine, three rectangular symbol display windows are provided side by side in a row on a front panel on the front side, and the positions behind the symbol display windows inside the machine body , Reels each having a plurality of types of symbols are arranged on the outer peripheral surface thereof. When the player performs a game start operation, the reels rotate at the same time, and the symbol rows on the outer peripheral surface of the reel are displayed in a moving state in the respective symbol display windows.

At the position where the symbol display window is formed, three horizontal lines of upper, middle, and lower and two diagonal lines of downward rightward and downward leftward are drawn so as to cover each reel. . When the player sequentially performs the stop operation of each reel in the state where the movement display of the symbol row is performed, the corresponding reel is stopped, and when all the reels are stopped, each stop line is displayed. , 3 symbols for each reel are displayed in an aligned state. At this time, if a specific combination of symbols is established on the activated stop line, a prize is won, and the player is provided with a privilege such as payout of a predetermined number of medals.

In this type of slot machine, it is determined whether or not to win the prize by a lottery inside the machine according to the game start operation by the player, and there is a predetermined probability of "big bonus" and "regular". Bonus"
It is set so that the special prize called "etc." When such a special winning is established, thereafter, a special game with a high winning probability (hereinafter referred to as “bonus game”) is executed a predetermined number of times, and a large number of medals are paid out to the player.

In the current slot machine, "BAR"
When a predetermined combination of symbols such as “BAR” and “BAR” is established, a regular bonus is achieved, and a bonus game in which a winning is established with a high probability is executed until winning eight times or up to 12 times. .

When a combination of symbols "7", "7", and "7" is established, a big bonus is given, and in addition to the frequent winning of general winning symbols, the regular bonus described above can be hit with a high probability. The bonus game at the time of the big bonus continues until the game is executed up to 30 times or the regular bonus appears 3 times.

Furthermore, in the current slot machines, a special prize called "single bonus" is set more frequently than the above "regular bonus" and "big bonus". When this single bonus is established, after paying out a predetermined number of medals,
The bonus game is executed only once.

[0008]

As described above, in the slot machine, a game having a content that brings a profit to the player by executing various bonuses is executed. However, the number of executions of the bonus game, the number of winnings, and the winning probability are Since it is fixed, the game development tends to be monotonous. For this reason, there is a problem in that it is not possible to present a surprising game development to the player, and it is not possible to sufficiently arouse the player's expectation and excitement for winning the prize.

The present invention has been made in view of the above problems, and an object thereof is to make the game development complicated so as to greatly enhance the game characteristics of the gaming machine and the player's interest in the game.

[0010]

According to the present invention, a regular bonus that allows a special game to be executed and a regular bonus are provided up to a predetermined number of times, provided with a plurality of symbol arrays for displaying and moving symbols. The big bonus that can be played is applied to the slot machine in which the big bonus is set corresponding to each predetermined symbol combination. The slot machine according to the invention of claim 1 is characterized in that a plurality of symbol combinations are set for the big bonus, and the number of times the regular bonus can be established in the big bonus is changed by these symbol combinations. To do.

In the slot machine according to the second aspect of the present invention, a plurality of symbol combinations are set in the big bonus, and by these symbol combinations,
The probability of winning a prize including a regular bonus in a big bonus is changed.

In the slot machine according to the invention of claim 3, a plurality of symbol combinations are set in the big bonus, and by these symbol combinations,
The number of times a regular bonus can be established in the big bonus and the probability that a prize including the regular bonus will be established in the big bonus are varied.

[0013]

According to the first aspect of the present invention, the number of times the regular bonus can be established varies depending on the combination of the established symbols. Therefore, even with the same big bonus, the expected value for the regular bonus is different. Further, if the lottery tables at the time of the big bonus are the same, the number of games executed at the time of the big bonus can be changed by the combination of the symbols that are established.

According to the invention of claim 2, for example, two kinds of symbol combinations are set for the big bonus, the probability that the regular bonus is established is set high for one symbol combination, and the other symbol combination is set. If the probability of winning a prize other than the regular bonus is set to be high, it is expected that in the former case, the regular bonus will be frequently established and the big bonus will end in a short period. On the other hand, in the latter, it is expected that general prizes will appear with high frequency, and the number of games executed during the regular bonus will increase.

According to the third aspect of the present invention, the number of times the regular bonus can be established and the winning probability can be arbitrarily set for each symbol combination. Therefore, various settings can be made by devising these settings. It becomes possible to execute a big bonus.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the appearance of a slot machine to which the present invention is applied, and FIG. 2 shows the internal structure of the machine.
The machine body 1 of this slot machine comprises a box-shaped main body portion 2 and a door portion 3 attached to the front opening of the main body portion 2 so as to be opened and closed. A reel block 4 and a circuit board 5 on which a control circuit and the like are arranged in an upper position are incorporated in the hollow inside of the main body portion 2, and a medal discharge having a hopper 6a for accommodating a large number of medals is arranged in a lower position. Machine 6 and the like are incorporated.

The reel block 4 includes a metal frame 7
3 reels 8a, 8b, 8c are integrally assembled. On the outer peripheral surface of each reel 8a, 8b, 8c, three kinds of "7" symbols colored red, blue, and white (hereinafter referred to as "red 7""blue7""white7" for each color) In addition, a plurality of types of symbols, such as a pattern in which letters “BAR” and “fruit (FRUIT)” are arranged, a cherry, a watermelon, and a bell-shaped pattern, are arranged in a predetermined order for 21 frames. Further, the reel block 4 is assembled with stepping motors 9a, 9b, 9c for individually rotating and driving the respective reels 8a, 8b, 8c.

As shown in FIG. 3, each reel 8a, 8b, 8c is provided with a reference signal generator 23 for generating a reference signal which will be described later. The reference signal generator 23 of the illustrated example has a protrusion 2 integrally formed with a shaft portion 40 that connects the outer peripheral frame of each reel 8a, 8b, 8c and the central boss portion.
1 and a photoelectric sensor 22 arranged at the position where the protrusion 21 passes. From the photoelectric sensor 22, a reference signal is generated each time the protrusion 21 blocks the optical path of the photoelectric sensor 22 by the rotation of the reel, and the counting unit 3 of the CPU 27 described later is described.
Given to 4.

The main body of the door portion 3 is composed of a metal frame having a predetermined thickness, three panels 11, 12, 13 are provided in the front opening, and a wiring board for various indicators and operation switches is provided on the rear surface. (Not shown) and the like are assembled.

Each of the panels 11, 12 and 13 is formed by performing silk screen printing on the surface of a transparent synthetic resin plate or tempered glass, and the central front panel 11 is provided at a position corresponding to each reel. Non-colored and transparent symbol display windows 20a, 20b, 20c are formed. The model name, game information, etc. are drawn on the upper panel 12 and the lower panel 13.

A start lever 14 and a stop button switch 1 are provided in a frame portion between the front panel 11 and the lower panel 13.
5a, 15b, 15c, bet button switches 24a, 24
b, 24c, a medal slot 16, etc. are provided, and below the lower panel 13, a medal payout port 17, a medal tray 18, etc. are provided.

Each symbol display window 20a, 20b, 20c
Is 3 when each reel 8a, 8b, 8c is stopped.
Each symbol display window 20a, 20b, 20 of the front panel 11 is formed in a size capable of displaying individual symbols.
At the formation position of c, as shown in FIG. 4, above each window,
A total of five horizontal and diagonal stop lines L1 to L5 are shown so as to cover the symbol display positions in the middle and lower rows. Inside the front panel 11, a lighting device 19 made of a fluorescent lamp is arranged. Lighting device 1 after power on
9 is always lit, and the outer peripheral surface of each reel 8a, 8b, 8c is illuminated obliquely from above.

In this embodiment, the mechanical reel 8 is used.
The symbol columns are moved and displayed by a, 8b, and 8c. Instead of the reels 8a, 8b, and 8c, the symbol columns are moved and displayed by using a rotating body such as a belt or a disc. May be. Alternatively, the symbols may be variably displayed by displaying the symbols as images on a display screen of a liquid crystal display panel or a CRT display and scrolling.

The slot machine of this embodiment is capable of executing a so-called credit type game in which a large number of medals are stored in the machine body and the game is executed by consuming the stored medals. A state in which the game can be started is set by inserting a medal from 16 or consuming the stored medals by pressing the bet button switches 24a to 24c.

Among the bet button switches, a switch 24a provided on the inclined surface below the front panel 11 is provided.
Is for consuming the maximum of three inserted medals, and the switch 2 arranged on the vertical surface of the frame.
4b and 24c are for consuming two and one stored medals, respectively. Further, if the number of inserted medals is one, if only the central stop line L1 is two, and if the three stop lines L1 to L3 of the upper, middle, and lower are three, all The stop lines L1 to L5 are activated respectively.

In the slot machine having the above structure, a predetermined number of stop lines are activated by a player inserting a medal (meaning either inserting the above-mentioned medals or operating the bet button switches 24a to 24c). By operating the starting lever 14, all reels 8a, 8b, 8
When c are simultaneously started, a lottery process is performed in the control circuit unit 25, which will be described later, and it is determined whether the winning symbol combinations are aligned and displayed on the activated line. Then, when it is determined that the “win” by one of the symbols is established, thereafter, the control circuit unit 25 causes the corresponding reels 8a, 8b, 8c to change each time the stop button switches 15a, 15b, 15c are operated. The pull-in control for stopping the symbols determined on the activated line is executed to achieve the winning.

When all the reels 8a, 8b, 8c are stopped and the winning symbols of the same kind are aligned and displayed on the activated line, a predetermined number of medals are paid out. The number of medals to be paid out is individually set according to the established symbol combination, and when a combination of specific symbols for bonus is established (hereinafter, this state will be referred to as “bonus winning”).
That is, the bonus game is executed a predetermined number of times, and the player is given a chance to win many medals.

FIG. 5 shows symbol combinations for bonus winning. In this embodiment, the "red 7", "blue 7",
The symbol combination of "7" for each color of "white 7" is set as the symbol combination for the big bonus. That is, the big bonus is started when the symbols of the same color "7" are aligned on the activated line. Even if the combination of symbols "7" is different, the combination of different colors is processed as "outlier". It

Each combination of "BAR", "BAR", "BAR", or "BAR", "BAR", "red 7" functions as a symbol combination for regular bonus. However, when a regular bonus is won at the time of a big bonus, these symbol combinations are controlled so as not to appear, and instead pull-in control is performed so that the combination of “plum”, “plum”, and “plum” is established.

Further, in this embodiment, the combination in which the "watermelon" or "bell" symbols are arranged is set as the symbol combination for the single bonus. If a big bonus or regular bonus is achieved,
The bonus game is executed a plurality of times, the bonus game is executed only once when the single bonus is established, the regular bonus prize and the general prize prize are each set at a predetermined probability when the big bonus is executed. The point that appears in is the same as the conventional one.

The lottery for determining the symbol combination is
It is executed by using a random number with an integer value within the range of “1” to “16384”, and the control circuit unit 25 has a specific data for each winning as setting data of winning probability of each bonus winning or general winning. A lottery table to which random numbers are assigned is set.

Further, in the slot machine of this embodiment,
A lottery table is provided to set the winning probabilities for each of the six prizes for all winnings so that the probability of winning various winnings can be appropriately changed.

FIG. 6 shows an electrical configuration of the slot machine. In the figure, a control circuit unit 25 is composed of a microcomputer, and a CPU 27 that is a control body, a program, a symbol array table for each reel 8a, 8b, 8c, and a ROM 28 that stores the lottery table described above,
It includes a RAM 29 used for reading and writing data.

The starter lever 14, the stop button switches 15a, 15 are connected to the control circuit section 25 via a bus 26.
b, 15c, bet button switches 24a, 24b, 24
c, the medal sensor 30, the photoelectric sensor 22 for each reel
(Indicated as 22a, 22b, 22c for each reel in the figure),
Input units such as the probability setting switch 38 and output units such as the medal payout machine 6 and reel drive units 31a, 31b, 31c for each reel are connected.

The medal sensor 30 is provided inside the medal insertion slot 16 and detects the insertion of a medal into the machine body. The reel drive units 31a, 31b, 31c are
The stepping motors 9a, 9b, 9c of the reels 8a, 8b, 8c are driven to drive the reels 8a, 8b, 8c, respectively.
Rotate and stop c.

The probability setting switch 38 is used to select the probability of winning a prize, that is, the probability of winning a lottery from the above-mentioned 6-step settings on the game hall side. Will be placed.

FIG. 7 is a functional block diagram showing a part of the functions of the CPU 27. Although only the circuit configuration of the first reel 8a is shown in FIG.
The same configuration is set for the right reels 8b and 8c.

In FIG. 7, a medal detection signal from the medal sensor 30 and an operation signal from the bet button switches 24a to 24c are given to the activated line setting section 32 and selected from the five stop lines L1 to L5. The line corresponding to the number of inserted medals is effectively set.

The reel drive section 31a receives the clock signal to generate a drive pulse P, supplies the drive pulse P to the stepping motor 9a, and drives the reel 8a. A start command and a stop command are given to the reel drive unit 31a from the control unit 33 of the CPU 27.

When the starting lever 14 is operated, the control unit 3
A start signal is input to 3, and in response to this, the control unit 33 issues a start command to the reel drive unit 31a to operate the stepping motor 9a. After this, stop button switch 1
When the stop operation signal is input to the control unit 33 by pressing 5a, the control unit 33 issues a stop command to the reel drive unit 31a to stop the operation of the stepping motor 9a.

During this time, the drive pulse P is given to the counting section 34 of the CPU 27 and counted. The count value K by the counter is reset by the reference signal provided from the photoelectric sensor 22a of the reference signal generator 20 every time the reel 8a makes one rotation. The count value K is for representing a symbol at the current rotation angle position of the reel, in other words, a predetermined reference position (for example, on the stop line L3 at the bottom), and the symbol detection unit 35 uses this symbol. Referring to the symbol array table in the ROM 28 with the numerical value K,
Which symbol on the reel 8a is located on each line is detected, and the detection result is determined by the determination unit 36 and the control unit 3.
Output to 3.

The determination section 36 includes other reels 8b, 8
The symbol detection unit for c also gives the symbol detection result, and when all three reels 8a, 8b, 8c are stopped, it is determined whether or not a winning symbol combination is established. . The determination unit 36 is provided with the setting result of the valid line setting unit 32, and the above determination process is performed for all the activated lines.

In the ROM 28, a random number of a number corresponding to the winning probability of each prize is set for each prize of each of the 6 stages for the various prizes in the general game mode and the bonus game. A lottery table is stored. The lottery section 37 refers to a lottery table according to the situation and probability setting of the game by a random number value generated internally every time there is a game start operation by the player, and decides whether or not to win the prize. .

When the stop operation signal from the stop button switch 15a is input, the control unit 33 enables the symbols determined by the lottery on the activated line based on the detection result by the symbol detection unit 35 at that time. The symbol pull-in control is performed so as to stop as much as possible.

In the slot machine having the above-mentioned configuration, in order to give variations to the game development, a plurality of symbol combinations are set for any one of three types of bonus prizes of big, regular and single, and each combination is set. The bonus game of a different mode is set to be executed (hereinafter, this setting is referred to as "bonus winning pattern variation"). An example of pattern variation for each bonus prize will be given below to specifically describe by what control these bonus games are executed.

(1) Big Bonus Pattern Variation In the following three embodiments, the individual big bonuses BB1, BB2 and BB3 are provided for each symbol combination of "red 7""blue7""white7". The big bonuses BB1, BB2, and BB3 are set to appear with different probabilities, and a different mode of game is executed for each big bonus. Each big bonus is completed when a regular bonus is executed a predetermined number of times or when a bonus game is executed 30 times.

FIG. 8 shows conditions for causing each big bonus to appear with different probabilities. In the figure, the “number of combinations achieved” in the center column indicates the number of combinations forming the symbol combination for each big bonus, out of the 9261 combinations of symbols of 21 frames for each reel 8a, 8b, 8c. The "winning frequency" in the right column refers to the number of random numbers assigned to each big bonus in the lottery table.

In all of the three embodiments, the symbols for each reel 8a, 8b, 8c are arranged so that the number of combinations A, B, C for each big bonus satisfies the condition of the expression (1). , While suppressing the appearance probability of the symbol combination for the big bonus on the symbol array to be less than 1/1500, and (2) to (4) between the number A, B, C of winning combination and the winning frequency X, Y, Z. ), A lottery table that satisfies the condition is set, and the probability of winning the bonus prize for each big bonus is 30% or more than the probability of the corresponding symbol combination appearing on the symbol array. It is limited to the range where does not occur.

[0049] (A + B + C) / 9261 ≦ 1/1500 (1) A × 0.7 / 9261 ≦ X / 16384 ≦ A × 1.3 / 9261 (2) B × 0.7 / 9261 ≦ Y / 16384 ≦ B × 1.3 / 9261 (3) C × 0.7 / 9261 ≦ Z / 16384 ≦ C × 1.3 / 9261 (4)

FIG. 9 shows the number of combinations A, B and C satisfying the above equation (1) and the big bonuses BB1 and BB.
2, a specific example of a lottery table for establishing BB3 under the conditions of the expressions (2) to (4) is shown. In addition, although the lottery table is represented here by the winning frequency, the actual RO
The table stored in M28 has a data format in which a random number value of the number of hits shown in the figure is assigned to each winning prize (the same applies to the following embodiments).

In the illustrated example, each reel 8a, 8b, 8c
Further, the symbol arrangement is performed such that each of the symbol combinations of "red 7", "blue 7", and "white 7" can be realized in three patterns, one pattern, and two patterns. Also, each big bonus BB
1, BB2, BB3, the higher the probability setting value,
The higher the number of inserted medals, the higher the winning probability.

The following embodiments are shown in FIG.
This setting condition is an example, and for example, each big bonus BB1, BB2,
The condition of the number A, B, C of the combination of BB3 established is as described in (1) above.
The expression may be changed to the following expressions (5) to (7). In addition to this, the number of combinations A, B and C, the number of hits X,
The Y and Z setting conditions can be changed as appropriate.

[0053] A / 9261 ≦ 1/1500 (5) B / 9261 ≦ 2/1500 (6) C / 9261 ≦ 2/1500 (7)

<Embodiment> In this embodiment, for each of the above-mentioned big bonuses BB1, BB2, and BB3, a bonus game based on the same probability table is developed, but the restriction of the regular bonus which is one condition for completing the bonus game. The number of times is set to "3 times" for BB1, "2 times" for BB2, and "1 time" for BB3. As a result, the expected value for the regular bonus of the player also varies depending on which color "7" symbol combination is established on the activated line.

FIG. 10 shows a lottery table at the time of a big bonus, together with the number of medals paid out at the time of winning for each winning. In the figure, "RB _BB " in the upper row means the regular bonus prize in the big bonus (that is, the prize by the symbol "plum" shown in FIG. 4) regardless of the probability setting or the number of inserted medals. "500
The hit frequency of "0" is set (that is, 30.5).
The regular bonus will be established with% probability). In addition, at the time of big bonus, "cherry"
The winnings by the combination of the symbols and the winnings by the combination of the “fruit” symbols (hereinafter abbreviated as “cherry winning” and “fruit winning”) are set to be established more frequently as the number of inserted medals increases.

As described above, each big bonus BB1,
Although there is no difference in the winning probability or the number of paid out medals between BB2 and BB3, the expected number of regular bonuses is different even for the same big bonus because the regular bonus limit number is different. Since the same lottery table is set for each big bonus, the number of games to be executed is BB3, BB2, BB.
It is expected to increase in the order of 1.

<Embodiment> In this embodiment, in each of the big bonuses BB1, BB2 and BB3, the regular bonus limit number during the big bonus is unified to three, and instead, various prizes including the regular bonus are established. The probability of playing is changed for each big bonus. However, the payout number of medals for each prize and the content of winning the regular bonus (the number of bonus games executed by the establishment of the regular bonus) are set to be the same for each big bonus.

FIG. 11 shows a setting example of the lottery table used in this embodiment, together with the number of medals paid out for each winning. In this embodiment, each big bonus BB1, B
An individual lottery table is set for each of B2 and BB3.
The winning frequency for the regular bonus is set uniformly for each big bonus regardless of the probability setting value and the number of inserted medals, but in BB1, it is "5000", BB
Different frequencies are set for each big bonus, such as "3000" for 2 and "2000" for BB3.

Focusing on the winning frequency of the general winning, the BB with the highest regular bonus
A higher frequency is set for BB2 and BB3 than for 1, and the winning frequency of the fruit prize particularly when three medals are thrown is "8500" for BB2 and "900" for BB3.
"0" is set to a very high frequency.

As described above, each big bonus ends at the time when the regular bonus is executed three times or when the bonus game is executed 30 times. Therefore, if BB1 of the big bonuses is achieved, the regular bonus will appear frequently, and the cherry prize and the fruit prize will not be won so much, and the regular bonus will be established three times in a short number of games. It is expected to return to the normal game mode.

On the other hand, in BB2 and BB3, the probability of winning the regular bonus is low, but the probability of winning the cherry prize or the fruit prize is high.
It is expected that these general prizes will appear with high frequency until the regular bonus is established once, and the number of games executed during the regular bonus will increase.

<Embodiment> This embodiment is based on the first and second embodiments.
Each Big Bonus B
The limit number of regular bonuses in B1, BB2, and BB3 is changed to "3 times", "2 times", and "1 time", and a lottery table similar to that shown in FIG. 11 is set for each big bonus. , The probability of winning various prizes is changed.

According to the above setting, in BB1,
Similar to the above embodiment, regular bonuses are frequently established with high probability, while cherry or fruit prizes are less likely to be established, and it is expected that the bonus game will end relatively early. On the other hand, in BB2 and BB3,
The lower the number of times regular bonuses are established, the higher the probability that cherry or fruit prizes will be established. Therefore, at the time of these big bonuses, a larger number of games are executed than BB1 and a large number of general prizes are established. Expected.

Further, in this embodiment, the number of times the regular bonus is limited for each big bonus and the winning probability can be arbitrarily set, so by devising these settings, various kinds of big bonuses can be executed. Becomes

According to the settings as in the above embodiments,
Even with the same big bonus, different game developments will appear depending on the type of symbol combination that has been established, and it is possible to greatly enhance the game quality at the time of the big bonus and attract the player. Further, since the player pays attention to the stopping operation of each reel 8a, 8b, 8c in order to confirm which type of big bonus is realized, the player can greatly concentrate on the game.

(2) Pattern Change of Regular Bonus The following three embodiments have two variations in the normal game.
Regular bonuses RB1 and RB2 having different modes are set for the respective symbol combinations, and the regular bonuses RB1 and RB2 are caused to appear with different probabilities.

[0067] In each embodiment, as shown in FIG. 12, a big bonus during regular bonus "RB _BB" also each regular bonus including RB1, RB2, the RB _BB, different combinations established number a respective, b, c, Hit frequency x,
Set y and z. In particular, for RB1 and RB2, the following combinations (7) to
By setting the condition of equation (9), the probability of appearance of symbol combinations for regular bonuses is limited to 1/500 or less of all combinations, and the probability that each regular bonus will be established by lottery will be The probability of appearing on the symbol array is limited to a range in which there is no difference of 30% or more.

[0068]   (A + b) / 9261 ≦ 1/500 (7)   a × 0.7 / 9261 ≦ x / 16384 ≦ a × 1.3 / 9261 (8)   b × 0.7 / 9261 ≦ y / 16384 ≦ b × 1.3 / 9261 (9)

FIG. 13 shows the number of combinations a and b based on the equation (7) and the regular bonuses RB1 and RB.
2 is a specific example of a lottery table for satisfying the condition 2 of the above formulas (8) and (9), and each reel 8a, 8b, 8c
"BAR", "BAR", "BAR" for RB1
6 symbol combinations are established, and RB2
"BAR" so that the symbol combinations of "BAR", "BAR", and "Red 7" can be achieved in four patterns.
Each symbol of "red 7" is arranged. Further, each of the regular bonuses RB1 and RB2 is set so that the winning probability increases as the set value of the probability variation increases and the number of inserted medals increases.

The number c of combinations that can be established for RB _BB is
It is set arbitrarily regardless of a and b. The appearance probability of RB _BB at the time of the big bonus is set to a uniform value as shown in FIG.

<Embodiment> FIG. 14 shows an example of setting the regular bonuses RB1, RB2 and RB _{BB according} to this embodiment. In the figure, the "maximum number of games" in the left column shows the upper limit of the bonus games that can be executed by the establishment of the regular bonus, and the "maximum number of winnings" in the center column shows the number of winnings. In the right column, "Winning frequency (winning probability)" is applied to each bonus game,
In the OM 28, a lottery table based on this frequency data is set for each regular bonus.

In this embodiment, each regular bonus R
Both B1 and RB2 are set so that the bonus game wins with a probability of 75%. RB1 allows up to 10 bonus games or 6 wins, while RB2 allows up to 8 wins. It is set to end when the bonus game is repeated four times or the prize is won four times. Regular bonus RB at the time of big bonus
_{The BB} can win a maximum of 12 bonus games or 8 times of winnings, and the winning probability of each bonus game is set to 90%, which is higher than in the normal game.

According to the above settings, during the normal game,
It is more likely that the game will be developed more advantageously for the player when RB1 is established than when RB2 is established. Therefore, it is considered that the player expects to establish a more advantageous symbol combination of RB1.

[0074] <Example> This example, each regular bonus RB1, RB2, RB _BB both, the maximum number of games,
While the maximum number of winnings is set to the same number, the winning probability for each bonus game is changed. Figure 1
5 is a setting example of regular bonuses RB1, RB2, RB _BB , and the same settings are made such that the maximum number of games is 12 and the maximum number of winnings is 8 in each case. However, regarding the winning probability, RB1 is 75%, RB
2 is 85% and RB _BB is 90%, and individual values are set.

According to the above setting, even if the regular bonuses RB1, RB2 and RB _BB have the same number of winnings, the lower the winning probability is, the more difficult it is to win eight winnings. . Therefore, in the normal game, it is more likely that more prizes will be established when RB2 is established than RB1, and it is expected that the degree of expectation for the prizes will be higher than RB2.

[0076] <Example> This example, for each regular bonus RB1, RB2, RB _BB, the maximum number of games,
All the setting values of the maximum winning number and the winning probability are changed, and a specific example of the setting is shown in FIG.

In the illustrated example, RB1 is capable of winning a maximum of 10 bonus games or winning a maximum of 6 times,
A winning probability of 86.1% is set for each bonus game. On the other hand, in RB2, a maximum of 8 bonus games,
Alternatively, the game content is finished when the winning is completed four times, and the winning probability is 85%, which is a more disadvantageous game content than RB1. Regular bonus RB _BB at the time of big bonus
Then, the most advantageous game content is set such that 12 bonus games or 8 winnings can be established, and that each bonus game has a 90% probability of winning.

According to the above-described embodiment, there is a clear difference in the game contents between RB1 and RB2 in the general game, which makes the game development in the general game complicated and attracts the player. . Moreover, RB
Since each symbol combination forming 1, RB2 is a combination in which “BAR” is located in the left and center,
When the left and center reels 8a and 8b are stopped, "BA
Even if the symbols “R” and “BAR” are aligned, the player cannot determine which regular bonus is won until the final reel 8c is stopped, and pays close attention to the stopping operation of the reel 8c. Come to do.

(3) Single Bonus Pattern Variation In the following embodiment, different single bonuses SB1 and SB2 are set for the two combinations for single bonus shown in FIG. 4, and these single bonuses are set. SB1 and SB2 are made to appear with different probabilities.

Here, as shown in FIG. 17, different combination establishment numbers a1 and b1 and winning frequencies x1 and y1 are set to the single bonuses SB1 and SB2, respectively. It should be noted that these set values a1, b1, x1, y1 are the same as the above (8).
The same conditions as in formula (9) are set, and the probability that each single bonus will be established by lottery x1 / 16384, y1 / 1
6384 is the probabilities a1 / 9261 and b1 / 926 that the corresponding symbol combinations appear on the symbol array.
It is limited to a range in which a difference of 30% or more with respect to 1 does not occur. In the illustrated example, the number of medals to be paid out when each single bonus is established is 5 in SB1.
The number of sheets is fluctuating, such as 15 sheets for SB2.

FIG. 18 shows each single bonus SB1, S.
The number of combinations a1 and b1 for each combination B2, and the lottery table for establishing each symbol combination under the above conditions are shown. In the illustrated example, each reel 8a, 8b, 8c has an SB
Symbols such that the “watermelon”, “watermelon” and “watermelon” symbol combinations according to 1 are established in 60 patterns, and the “bell”, “bell” and “bell” symbol combinations according to SB2 are established in 36 patterns. Set the array. Further, in each of the single bonuses SB1 and SB2, the winning probability is set higher as the number of inserted medals increases, but the same winning probability is set regardless of the probability setting value.

<Embodiment> When the single bonus is established, as described above, the bonus game is executed only once. In this embodiment, as described above, the number of medals paid out when the single bonus is established is varied between the single bonuses SB1 and SB2, and the winning probabilities of the subsequent bonus games are set differently.

FIG. 19 shows the setting of the bonus game in this embodiment. Here, the two types of single bonuses SB1 and SB2 as well as the regular bonus RB at the time of a normal winning (in this embodiment, regardless of the combination of symbols) No, only one type of game is performed), and the regular bonus RB _BB at the time of big bonus is shown in comparison with the winning content and the winning frequency (winning probability).

In the illustrated example, in any of the bonus games in the bonus winning, the winning is achieved by the combination of the symbols of "plum" and 15 medals are paid out, but the winning probability in SB1 is relatively high at 50%. While low, SB2 has a high winning probability of 90%. The winning probability in RB is 85%, RB _BB
The winning probability at 86.1% is limited to a value lower than SB2.

According to the settings of FIGS. 18 and 19, SB
Although 1 appears more frequently than SB2, the number of paid-out medals is as small as 5, and the probability of winning the bonus game is only 50%. On the other hand, SB2 is S
There is an advantage that 15 payout medals are obtained instead of the appearance frequency less than B1, and that the bonus game is won with a very high probability.

With such a setting, it is possible to provide a plurality of kinds of modes for winning a small amount which appears more frequently than a big bonus or a regular bonus. It is possible to perform symbol display that enhances the property.

<Embodiment> This embodiment also changes the mode of the special game associated with each single bonus SB1, SB2 as in the above embodiment, but here, instead of the bonus game, "high probability" is used. The execution pattern of the probability variation game called "gaming game" is targeted for variation.

The "high-probability accessory game" is a game in which the probability of hitting a single bonus is changed to several times that of a normal bonus, and the above-mentioned lottery for winning determination is conducted by a lottery separate from the above. Whether or not the winning probability of the single bonus is changed is determined.

In this embodiment, after the single bonus is established, a lottery is carried out as to whether or not to start the high-probability accessory game. The probability of winning this lottery is
As shown in 0, 40% is established when SB1 is established, and 20% is established when SB2 is established. Also, regarding the variation value of the winning probability of the single bonus in the high-probability accessory game, it is 5 when SB1 is established.
A different multiplying factor is set for each single bonus, that is, 10 times when the SB2 is established.

According to the above embodiment, the probability of winning a prize in the subsequent games and the fluctuation range of the probability change depending on which of the single bonuses SB1 and SB2 is established. The player will be highly interested in the game even during the regular game.

In each of the above-mentioned embodiments, a different game mode is set for each of a plurality of types of symbol combinations, but the present invention is not limited to this, and one game mode
Two or more symbol combinations may be associated with each other. For example, as a symbol for a big bonus, in addition to the above-mentioned three-color “7” symbol, a green “7” symbol (green 7) is further prepared, and “red 7” and “red 7”
The symbol combination of either “red 7” or “green 7” “green 7” “green 7” can be set to execute the big bonus in the form of BB1.

21 to 24 show the flow of control of the slot machine by the control circuit section 25. The procedure shown here is
It is applicable to any of the above-mentioned Examples,
Specific processing when each embodiment is applied will be described as appropriate. In the figure, BB, RB, and SB are a big bonus, a regular bonus, and a single bonus, respectively.
“ST” indicates each step of control.

First, FIG. 21 shows the procedure in the normal game mode. At ST1, the game start operation by the player, that is, the medal insertion operation and the start lever 14 is performed.
CPU 27, all the reels 8a, 8
While rotating b and 8c all at once, the lottery using the lottery table in the ROM 28 is executed (ST2, 3).

In this lottery process, when the pattern change of the big bonus is set, the big bonuses BB1 and BB are made by the lottery table shown in FIG.
A lottery will be conducted for each of 2 and BB3. Similarly, when the pattern of the regular bonus is changed, the regular bonuses RB1 and RB are selected according to the lottery table shown in FIG.
When the lottery for each 2 is performed and the pattern of the single bonus is changed, the lottery for each single bonus SB1, SB2 is executed by the lottery table shown in FIG.

After starting all the reels 8a, 8b, 8c,
When the player performs the first stop operation, ST4 becomes "YES", and the CPU 27 checks whether the lottery is "win" in the next ST5. If this determination is “YES”, the process proceeds to ST6, and the pull-in control for stopping the symbol corresponding to the lottery result on the predetermined effective line is executed.

If the lottery has not been won, ST5 becomes "NO" and the process proceeds to ST7, and the reel which has been stopped is controlled so as to stop at a position corresponding to the stop operation in principle.

Similarly, every time there is a second or third stop operation, the CPU 27 stops the corresponding reel at a timing based on the lottery result. However, when the target symbol cannot be drawn in even after the predetermined number of frames have been moved since the stop operation, the stop-operated reel is basically controlled to stop at a position corresponding to the stop operation. Even if the lottery has not been won, if there is a possibility that a win will be established when the reels are finally stopped, it is necessary to execute the pull-in control for avoiding the win.

In this way, all reels 8a, 8
When b and 8c are stopped, ST8 becomes “YES”, and when a winning symbol combination is established on any of the activated lines, ST9 becomes “YES” and the winning content is changed. Several medals are paid out (ST10).

Thereafter, if the established symbol combination is a big bonus, ST11 becomes "YES" and a series of big bonus routines are executed (S).
T14). When the regular bonus is established, ST12 becomes "YES", and the routine shifts to the regular bonus routine of ST15. When the single bonus is established, ST13 becomes "YES" and ST1.
Six single bonus routines are executed.

FIG. 22 shows the detailed procedure of the big bonus routine of ST14. In the procedure of the figure, bk is a counter for counting the number of executions of the bonus game, bn is a counter for counting the number of times the regular bonus is established, both of which are the first ST10.
At 1, it is initialized to "0".

At the next ST102, the CPU 27 causes the RO
From M28, the regular bonus limit number BN is read out, and the access destination for the lottery process is changed from the lottery table for the general game to the lottery table for the big bonus. At this time, if the embodiment or is executed, a lottery table corresponding to the symbol combination established in the preceding game is selected from among the three lottery tables shown in FIG. Is set. The regular bonus limit number BN in the embodiment is “3 times”, “2 times”, “1 time” according to the symbol combination established in the preceding game.
Is set to any value of.

Next, when there is a game start operation by the player, each reel 8a, 8b, 8c is started at the same time as in the normal game, and a lottery is executed based on the set lottery table (ST103). ~ 105). After that, each time there is a stop operation by the player, reel stop control is performed according to the lottery result, and in the case of winning, one of "plum", "cherry", and "fruit" depending on the lottery result. The pull-in control is performed so that the symbols of are aligned on the effective line. When the lottery is missed, as a general rule, the reel stop process corresponding to the stop operation is executed (ST106 to 113).

Thus, all reels 8a, 8b, 8c
Is stopped, ST114 becomes "YES", the counter bk is incremented at this point, and if the winning is established, the number of medals corresponding to the winning is paid out (ST115 to 117).

If the symbol combination established in ST118 is a "plum" combination, the regular bonus RB _BB is established, and the routine proceeds to RB _BB routine in ST119. Note that this routine is based on the regular bonus routine for the general game described in FIG. 23, and detailed description thereof will be omitted here.

When returning from the RB _BB routine, the CP
U27 increments the regular bonus counter bn (ST120). Counter bn at this point
Has reached the above-mentioned limit number BN or the number of bonus games bk has reached 30 (ST121,
If any of ST122 is "YES"), the routine ends, and the procedure returns to the procedure for the general game.

FIG. 23 shows a detailed procedure of the regular bonus routine of ST15. First ST20
At 1, both the counter rk for counting the number of executions of this bonus game and the counter rn for measuring the number of winnings are initially set to "0".

Next, the CPU 27 reads the setting data of the maximum game number RK, the maximum winning number RN, and the bonus game winning probability from the ROM 28. In this case, if the above-mentioned embodiment is adopted, R
Each set value of K and RN is selected from one of two modes according to the combination of symbols that are established as a regular bonus. Similarly, when the or embodiment is adopted, one of the two winning probabilities is selected according to the combination of the established symbols.

After this, when the player performs a game start operation, the reels 8a, 8b, 8c are simultaneously started, and a lottery is executed based on the set winning probability (ST203).
~ 205). Then, each time the player makes a stop operation, pull-in control of the "plum" symbol or reel stop control according to the stop operation is executed according to the lottery result (S).
T206-209).

As a result, all reels 8a, 8b, 8
When c stops, the counter rk is incremented (ST210, 211). Further, when the symbol "plum" is established on the activated line, ST212 becomes "YES" and the counter rn is incremented after the predetermined number of medals are paid out. At this point, if the counter rn reaches the maximum winning number RN or the game execution number rk reaches the maximum game number RK, ST
215 or ST216 becomes "YES", and the routine ends.

FIG. 24 shows the detailed procedure of the single bonus routine of ST16. In the first step ST301, the winning probability of the bonus game and the set value of the number of paid-out medals at the time of winning are read from the ROM 28. At this time, if the embodiment is adopted, 50% depending on the symbol combination established as the single bonus.
Alternatively, any winning probability of 90% will be set.

After that, in ST302 to ST304, the reels 8a, 8b, 8c are responded to by the game start operation by the player.
And the lottery process is performed, and thereafter, every time the player performs a stop operation, the corresponding reel is stopped (ST30.
5-308). At this time, if the lottery is successful, the symbol combination of the plums will be established on the activated line, and after the number of medals based on the setting data read in ST301 is paid out, the routine is ended. (ST310, 311).

When the above-mentioned embodiment is adopted, the routine is ended after executing the procedure of FIG. 24 and further executing each procedure of the following FIG. That is, when a series of single bonuses is completed by executing ST301 to ST311, the CPU 27 causes the ROM 28 to
The reading of the winning probability and the probability variation value for the high probability accessory game is started (ST312). The data read here varies depending on the execution mode of the upper single bonus. According to FIG. 20, when SB1 is executed, the winning probability of 40% and the probability fluctuation value of 5 times are SB.
When 2 is executed, a winning probability of 20% and a probability variation value of 10 times are set respectively.

At the next step ST313, the CPU 27 executes a lottery using the winning probability. When this lottery is successful, the winning probability of the single bonus is changed based on the probability variation value (ST314, 315). After that, the game based on the changed winning probability is executed a predetermined number of times (ST316), and the game is returned to the normal game.

Note that ST301 to ST31 of FIGS.
It is possible to continuously execute the embodiment by executing 6 in series. In this case, after the pattern of the single bonus is changed according to the established symbol combination, the lottery for the higher probability accessory game is executed while changing the winning probability. Can be greatly increased.

Similarly, by combining each of the embodiments 1 to 3, it is possible to change the pattern for each big, regular, and single bonus winning, or to change the pattern of bonus winning and the winning variation of high-probability winning amusement game. Various settings are possible, such as executing. Further, if these pattern variations are executed in combination with a plurality of types of notification modes, it is possible to execute a game development with a variety of tastes.

Here, each example in which the present invention is applied to a bonus game or a high probability winning game is described, but the present invention is not limited to these examples and is referred to as, for example, "challenge time". Is at least 1
It can also be applied to a special game in which the drawing control of one reel is released. In this case, a game in which the number of times the game is executed and the number of medals paid out is set for each of a plurality of symbol combinations, and at the time of the "challenge time", a game having the content corresponding to the established symbol combination is developed. become.

[0117]

According to the present invention, a plurality of symbol combinations are set in the big bonus, and the number of times the regular bonus can be established in the big bonus and the number of times the game can be executed are determined depending on which of these symbol combinations is established. The game development becomes different depending on the established symbol combination, such as a change in. Therefore, the game property at the time of a big bonus can be greatly improved and the player can be attracted. Further, since the player pays attention to the stop of the moving display of the symbols in order to confirm which type of big bonus is realized, the player can concentrate on the game.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a slot machine according to an embodiment of the present invention.

FIG. 2 is a front view showing an internal configuration of a slot machine body.

FIG. 3 is a perspective view showing a configuration of a reference signal generator.

FIG. 4 is a front view showing a configuration of a front panel.

FIG. 5 is an explanatory diagram showing symbol combinations related to a bonus winning.

FIG. 6 is a block diagram showing a circuit configuration of a slot machine.

FIG. 7 is a block diagram showing a part of the functions of the CPU.

FIG. 8 is an explanatory diagram showing conditions for changing a big bonus pattern.

9 is an explanatory diagram showing a specific setting example of FIG.

FIG. 10 is an explanatory diagram showing a setting example of a lottery table at the time of a big bonus applied to the embodiment.

FIG. 11 is an explanatory diagram showing a setting example of a lottery table at the time of a big bonus applied to the embodiment.

FIG. 12 is an explanatory diagram showing conditions for varying a regular bonus pattern.

FIG. 13 is an explanatory diagram showing a specific setting example of FIG.

FIG. 14 is an explanatory diagram showing a setting example of each regular bonus applied to the embodiment.

FIG. 15 is an explanatory diagram showing a setting example of each regular bonus applied to the embodiment.

FIG. 16 is an explanatory diagram showing a setting example of each regular bonus applied to the embodiment.

FIG. 17 is an explanatory diagram showing conditions for changing a single bonus pattern.

FIG. 18 is an explanatory diagram showing a specific setting example of FIG.

FIG. 19 is an explanatory diagram showing a setting example of a single bonus and a regular bonus applied to the embodiment.

FIG. 20 is an explanatory diagram showing an example of setting conditions for a high-probability accessory game applied to the embodiment.

FIG. 21 is a flowchart showing the procedure of a general game.

FIG. 22 is a flowchart showing a procedure for establishing a big bonus.

FIG. 23 is a flowchart showing a procedure for establishing a regular bonus.

FIG. 24 is a flowchart showing a procedure when a single bonus is established.

FIG. 25 is a flowchart showing a procedure for executing a high-probability accessory game.

[Explanation of symbols]

8a, 8b, 8c reels 20a, 20b, 20c Symbol display window 25 Control circuit section 27 CPU 28 ROM

Claims (3)

[Claims] 1. A regular bonus that allows a special game to be executed, and a big bonus that allows the regular bonus to be established up to a predetermined number of times, by providing a plurality of symbol arrays for displaying and moving symbols. In a slot machine in which and are set corresponding to predetermined symbol combinations, multiple combinations of symbols are set for the big bonus, and the number of times the regular bonus can be established in the big bonus is changed by these symbol combinations. A slot machine characterized by being adapted to. 2. A regular bonus that allows a special game to be executed, and a big bonus that allows the regular bonus to be established up to a predetermined number of times, by providing a plurality of symbol arrays for displaying and moving symbols. In a slot machine in which and are set in correspondence with predetermined symbol combinations, multiple combinations of symbols are set for the big bonus, and winnings including regular bonuses are achieved in the big bonus by these symbol combinations. A slot machine characterized by varying the probability. 3. A regular bonus that allows a special game to be executed, and a big bonus that allows the regular bonus to be established up to a predetermined number of times, by providing a plurality of symbol arrays for displaying and moving symbols. In a slot machine in which and are set in correspondence with predetermined symbol combinations, a plurality of symbol combinations are set for the big bonus, and the number of times the regular bonus in the big bonus can be established, and A slot machine characterized by changing the probability of winning a prize including a regular bonus in a big bonus.