The following rules have been adapted to fit the characteristics of computer game play. All the basic rules of pool apply except for the rules which are not specifically supported by the functions of the program. Rules that are not applied are not listed in the rules text.
The Rules in RealPool™ are based on the standardized rules of the BCA. Applicable rules text courtesy of “The Billiards Congress of America”.
GENERAL RULES OF POCKET BILLIARDS
These general rules apply to all pocket billiard games, UNLESS specifically noted to the contrary in the individual game rules.
1. TABLES, BALLS, EQUIPMENT. All games described in these rules are designed for tables, balls and equipment meeting the standards prescribed in the BCA Equipment Specifications
2. RACKING THE BALLS. When racking the balls a triangle must be used and the apex ball is to be spotted on the foot spot. All the balls must be lined up behind the apex ball and pressed together so that they all have contact with each other.
3. STRIKING CUE BALL. Legal shots require that the cue ball be struck only with the cue tip. Failure to meet this requirement is a foul.
4. FAILURE TO POCKET A BALL. If a player fails to pocket a ball on a legal shot, the player’s inning is over, and it is the opponent’s turn at the table.
5. CUE BALL ON OPENING BREAK. The opening break shot is taken with cue ball in hand behind the head string. The object balls are positioned according to the specific game rules. On the opening break, the game is considered to have commenced once the cue ball has been struck by the cue tip and crosses the head string.
6. CUE BALL IN HAND BEHIND THE HEAD STRING. This situation applies in specific games whereby the opening break is administered or a player’s scratching is penalized by the incoming player having cue ball in hand behind the head string. The incoming player may place the cue ball anywhere behind the head string. The shooting player may shoot at any object ball as long as the base of the object ball is on or below the head string. He may not shoot at any ball, the base of which is above the head string, unless he first shoots the cue ball below the head string and then by hitting a rail causes the cue ball to come back above the head string and hit the object ball. The base of the ball (the point of the ball touching the table) determines whether it is above or below the head string. When the cue ball is in hand behind the head string, it remains in hand (not in play) until the player drives the cue ball past the head string by striking it with his cue tip. The cue ball may be adjusted by the player’s hand, cue, etc., so long as it remains in hand. Once the cue ball is in play per the above, it may not be impeded in any way by the player; to do so is to commit a foul.
7. POCKETED BALLS. A ball is considered as a pocketed ball if as a result of an otherwise legal shot, it drops off the bed of the table into the pocket and remains there. A ball that rebounds from a pocket back onto the table bed is not a pocketed ball.
8. POSITION OF BALLS. The position of a ball is judged by where its base (or center) rests.
9. SHOOTING WITH BALLS IN MOTION. It is a foul if a player shoots while the cue ball or any object ball is in motion (a spinning ball is in motion).
10. COMPLETION OF STROKE. A stroke is not complete (and therefore is not counted) until all balls on the table have become motionless after the stroke (a spinning ball is in motion).
11. HEAD STRING DEFINED. The area behind the head string does not include the head string. Thus an object ball that is dead center on the head string is playable when specific game rules require that a player must shoot at a ball past the head string. Likewise, the cue ball when being put in play behind the head string (cue ball in hand behind the head string), may not be placed directly on the head string; it must be behind it.
12. GENERAL RULE, ALL FOULS. Though the penalties for fouls differ from game to game, the following apply to all fouls: (1) player’s inning ends; (2) if on a stroke, the stroke is invalid and any pocketed balls are not counted to the shooter’s credit; and (3) any ball(s) is respotted only if the rules of the specific game require it.
13. FAILURE TO CONTACT OBJECT BALL. It is a foul if on a stroke the cue balls fails to make contact with any legal object ball first. Playing away from a touching ball does not constitute having hit that ball.
14. LEGAL SHOT. Unless otherwise stated in a specific game rule, a player must cause the cue ball to contact a legal object ball and then (1) pocket a numbered ball, or (2) cause the cue ball or any numbered ball to contact a cushion. Failure to meet these requirements is a foul.
15. CUE BALL SCRATCH. It is a foul (scratch) if on a stroke, the cue ball is pocketed.
16. ONE FOUL LIMIT. Unless specific game rules dictate otherwise, only one foul is assessed on a player in each inning; if different penalties can apply, the most severe penalty is the factor determining which foul is assessed.
17. SPOTTING BALLS. When a specific game rules calls for spotting balls, they shall be replaced on the table on the long string after the stroke is complete. A single ball is placed on the foot spot; if more than one ball is to be spotted, they are placed on the long string in ascending numerical order, beginning on the foot spot and advancing toward the foot rail. When balls on or near the foot spot or long string interfere with the spotting of balls, the balls to be spotted are placed on the long string as close as possible to the foot spot without moving the interfering balls. Spotted balls are to be placed as close as possible to such interfering balls, except when the cue ball is interfering; balls to be spotted against the cue ball are placed as close as possible. If there is insufficient room on the long string between the foot spot and the foot rail cushion for balls that must be spotted, such balls are then placed on the extension of the long string “in front” of the foot spot (between the foot spot and the center spot), as near as possible to the foot spot and in the same numerical order as if they were spotted “behind” the foot spot (lowest numbered ball closest to the foot spot).
18. BREAKING SUBSEQUENT RACKS. In a match that consists of short rack games, the loser of each game breaks in the next.
19. PLAY BY INNINGS. During the course of play, players alternate turns (innings) at the table, with a player’s inning ending when he either fails to legally pocket a ball, or fouls. When an inning ends free of a foul, the incoming player accepts the table in position.
20. PLAYING FROM BEHIND THE STRING. When a player has the cue ball in hand behind the string (in the kitchen), he must drive the cue ball to a point outside the kitchen before it contacts either a cushion or an object ball. Failure to do so is a foul.
21. CUE BALL IN HAND FOUL. During cue ball in hand placement, the player may use his hand or any part of his cue (including the tip) to position the cue ball. When placing the cue ball in position, any forward stroke motion contacting the cue ball will be a foul, if not a legal shot.