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Rules of Snooker

1. There shall be pockets at the corners (two at the Spot end known as the top pockets and two at the Baulk end known as the bottom pockets) and one each at the middle of the longer sides (known as the centre pockets).
2. The pocket openings shall conform to the templates authorised by the World Professional Billiards and Snooker Association (WPBSA).

• the Spot, 12¾in (324mm) from a point perpendicularly below the face of the top cushion.
• the Centre Spot, located midway between the faces of the top and bottom cushions.
• the Pyramid Spot, located midway between the Centre Spot and the face of the top cushion.
• the Middle of the Baulk-line.

• they shall be of equal weight within a tolerance of 0.5g per set
• a set of balls may be changed by agreement between the players or on a decision by the referee.

1. reaching the end of a specified period of time,
2. either side reaching the number of points specified, or
3. being awarded by the referee under Section 4 Rule 2.

1. A stroke is made when the striker strikes the cue-ball with the tip of the cue.
2. A stroke is fair when no infringement of Rule is made.
3. A stroke is not completed until all balls have come to rest.
4. A stroke may be made directly or indirectly, thus:

1. a stroke is direct when the cue-ball strikes an object ball without first striking a cushion
   
2. a stroke is indirect when the cue-ball strikes one or more cushions before striking the first, or second object ball.

• a pot,
• an in-off,
• two pots,
• a pot and an in-off, or
• two pots and an in-off.

1. before the start of each game,
2. when it has entered a pocket, or
3. when it has been forced off the table.

1. it is played fairly from in-hand,
2. a foul is committed whilst the ball is on the table, or
3. it is spotted under Section 3 Rules 10(c)or 15(c)(ii).

1. after the cue-ball has commenced its forward motion, or
2. as the cue-ball makes contact with an object ball except, where the cue-ball and an object ball are almost touching, it shall not be deemed a push stroke if the cue-ball hits a very fine edge of the object ball.

1. when the cue-ball first strikes one object ball and then jumps over the other ball.
2. when the cue-ball jumps and strikes an object ball, but does not land on the far side of that ball.
3. When, after striking a ball lawfully, the cue-ball jumps over that ball after hitting a cushion or another

• Three balls are used: a plain white by one side, a yellow by the other side, and a red.
• Scoring strokes in a player's turn are made by pots, in-offs and cannons singly or in combination.
• Points awarded for scoring strokes are added to the score of the striker.
• Penalty points from fouls and misses are added to the opponent's score.
• A tactic employed at any time during a game is to leave both object balls in Baulk when the next player is in-hand such that any attempt at disturbing the balls must be by means of an indirect stroke.
• The winner of a game is the player or side

1. who has scored most points in the agreed or stipulated time,
2. who first reaches the agreed or stipulated number of points,
3. to whom the game is awarded under Section 4 Rule 2, or
4. to whom the game is conceded.

• The winner of a match is the player or side winning most games or, where aggregate points are relevant, with the greatest total.

• The order of play thus determined must remain unaltered throughout the game.
• The red is placed on the Spot and the first player plays from in-hand, the game commencing when the cue-ball has been placed on the table and contacted with the tip of the cue, either

1. as a stroke is made, or
2. while addressing the cue-ball

• If the wrong white ball is used for the opening stroke, that stroke is void and the game must be started with the correct ball. Once the game has started, it is the responsibility of the striker to ensure that he plays with the correct white ball even if the wrong white ball is passed to him by the referee.

1. A cannon, pot white and in-off white shall each score two.
2. A pot red and an in-off red shall each score three.
3. If more than one hazard or a combination of hazard/s and cannon are made in the same stroke, all are scored.
4. When an in-off is combined with a cannon, the in-off shall score (additionally to the cannon)

1. three points if the red was struck first by the cue-ball,
2. two points if the object white was struck first, or
3. two points if both object balls were struck simultaneously.

5. End of Session and Game

1. At the end of the period of time set for any session, the referee shall call TIME. Any stroke that has been made shall be allowed to finish and any points scored shall be added to the appropriate side. If other sessions are to follow, the position of all balls shall be measured and noted by the referee so that the next session may commence from the point of interruption.
2. The end of the final session as above is the end of a game in a time format.
3. In a game or match played to a time limit, it is possible that the scores could be level at the end of the period of time allowed and the rules setting the period of time should include any provision for any necessary tie-break.
4. When playing to an agreed or stipulated number of points, the end of the game is reached when a player first reaches or passes the required number. Only the points required are counted, though the player shall be credited with a break that includes all points scored.

6. Playing from In-hand
To play from in-hand, the cue-ball must be struck from a position on or within the lines of the "D", and

1. the referee will state, if asked, whether the cue-ball is properly placed (that is, not outside the lines of the "D").
2. if the tip of the cue should touch the cue-ball while positioning it, and the referee is satisfied that the striker was not attempting to play a stroke, then the cue-ball is not in play.
3. The cue-ball must be played out of Baulk. If it contacts an object ball that is out of Baulk, the cue-ball is held to have been played out of Baulk even though it may not physically cross the Baulk-line.
4. The cue-ball must contact a cushion or ball out of Baulk before re-entering and coming to rest in Baulk, or before hitting a ball in Baulk.
5. The cue-ball may be played against a cushion in Baulk before hitting a ball out of Baulk.
6. If an object ball is in Baulk, no part of its surface may be played on directly from in-hand, even if that part of its surface is above the Baulk-line.

7. Ball on Baulk-line
The referee shall state, if asked, whether a ball on or near the Baulk-line is in Baulk or out of Baulk.

8. Spotting Object Balls

1. If the red is pocketed or forced off the table, it is placed on the Spot, or

1. if the Spot is occupied, it shall be placed on the Pyramid Spot
2. if both the Spot and the Pyramid Spot are occupied, it shall be placed on the Centre Spot.

2. If the red is potted twice in succession in one break from the Spot or from the Pyramid Spot, not in conjunction with another score, it shall be placed on the Centre Spot, or

1. if the Centre Spot is occupied, it shall be placed on the Pyramid Spot.
2. if both the Centre Spot and the Pyramid Spot are occupied, it shall be placed on the Spot.

3. For continued pots of the red, not in conjunction with another score, it shall be placed on the Spot twice, then the Centre Spot once, in sequence while those spots are not occupied.
4. The referee shall inform the striker upon request how many consecutive pots have been made off the same spot.
5. A ball is not considered to be on any spot unless it was placed there by hand.
6. If another ball should touch any ball that has been placed by hand on a spot, that ball is no longer considered to be on that spot, even though it may not have moved.
7.  A player shall not be held responsible for any mistake by the referee in failing to spot correctly any object ball.

9. Limitation of Cannons
Consecutive cannons, not in conjunction with a hazard, are limited to seventy-five.

1. After seventy such cannons, the referee shall state SEVENTY CANNONS. If the referee should fail to announce when seventy cannons have been made, the striker shall be entitled to make five more such cannons after the referee does announce SEVENTY CANNONS.
2. The referee shall inform the striker upon request how many consecutive strokes of cannons have been made.

10. Limitation of Hazards
Consecutive hazards, not in conjunction with a cannon, are limited to fifteen strokes.

1. After ten such strokes of hazards, the referee shall state TEN HAZARDS. If the referee should fail to announce when ten hazards have been made, the striker shall be entitled to make five more such hazards after the referee does announce TEN HAZARDS.
2. The referee shall inform the striker upon request how many consecutive strokes of hazards have been made.
3. If the non-striker's ball is off the table as a result of the non-striker's last stroke, it shall be placed on the Middle of the Baulk-line after the fifteenth hazard or, if that is occupied, on the right-hand corner of the "D", viewed from the bottom end of the table.

11. Ball on Edge of Pocket

1. If a ball falls into a pocket without being hit by another ball, and being no part of any stroke in progress, it shall be replaced and any points scored shall count.
2. If it would have been hit by any ball involved in a stroke:

1. with no infringement of these Rules, all balls will be replaced and the same stroke played again, or a different stroke may be played at his discretion, by the same striker.
2. if a foul is committed all balls will be replaced and the next player has the usual options after a foul.

3. If a ball balances momentarily on the edge of a pocket and then falls in, it shall count as in the pocket and not be replaced.

12. Ball Moved by Other than Striker
If a ball, stationary or moving, is disturbed other than by the striker, it shall be re-positioned by the referee to the place he judges the ball was, or would have finished.

13. Touching Ball
When the striker's ball remains touching another ball, red shall be placed on the Spot, the non-striker's ball, if on the table, shall be placed on the Centre Spot, and the striker shall play from in-hand.

14. Fouls
The following acts are fouls:

15. Action after a Foul
When a foul is committed, the referee shall immediately call FOUL.

1. If the striker has not made a stroke, his turn ends immediately.
2. All points scored in a break before a foul is awarded are allowed but the striker shall not score any points in a stroke called foul.
3. All fouls will incur a penalty of two points but not more than two points shall be forfeited in any one stroke. Additionally, the next player shall have the option of playing

1. from where the balls have come to rest, the red if not correctly spotted remaining where positioned except that if off the table it shall be correctly spotted, or
2. from in-hand with the red placed on the Spot and the object white placed on the Centre Spot.

4. If the foul is neither awarded by the referee, nor successfully claimed by the non-striker before the next stroke is made, it is condoned.

16. Action after a Miss
If a miss is made when the striker is in-hand with no object ball out of Baulk, the referee shall call MISS. A penalty of two points is incurred, which is added to the opponent's score. Any other miss is a foul.

17. Four-handed Billiards

1. The side to make the first stroke is decided by the winner of the stringing, as per Section 3 Rule 2. The order of play is then determined by the next player after which the order must remain unchanged throughout the game.
2. Partners may confer during a game but not

1. whilst one is the striker and at the table, nor
2. after the first stroke of the striker's turn until the break ends.

18. Use of Ancillary Equipment
It is the responsibility if the striker to both place and remove any equipment he may use at the table.

1. The striker is responsible for all items including, but not limited to, rests and extensions that he brings to the table, whether owned by him or borrowed (except from the referee), and he will be penalised for any fouls made by him when using this equipment.
2. Equipment normally found at the table which has been provided by another party including the referee are not responsibility of the striker. Should this equipment prove to be faulty and thereby cause the striker to touch a ball or balls, no foul will be called. The referee will, if necessary, reposition any balls in accordance with Rule 12 above and the striker, if in a break, will be allowed to continue without penalty.

19. Interpretation

1. Throughout these Rules and Definitions, words implying the masculine gender shall equally apply to and include the female gender.
2. Circumstances may necessitate adjustment in how Rules are applied for persons with physical handicaps. In particular and for example Section 3 Rule 14(c) cannot be applied to players in wheelchairs.
3. When there is no referee, such as in a social game, the opposing player will be regarded as such for the purpose of these Rules.
   

2. Unfair Conduct
For refusing to continue a game, or for conduct which, in the opinion of the referee is wilfully or persistently unfair, including continued time wasting after being warned under Rule 1 above or ungentlemanly conduct, a player shall lose the game.

3. Penalty
When a game is forfeited under this Section

1. if it was to be decided on an agreed or stipulated number of points, the offender shall forfeit all points scored and the non-offender shall win the game by the agreed or stipulated number of points to nil, or
2. if it was over an agreed or stipulated period of time and forms part of a match, the match shall be forfeited.

4. Non-Striker
The non-striker shall, when the striker is playing, avoid standing or moving in the line of sight of the striker. He shall sit or stand at a reasonable distance from the table.

5. Absence
In the case of his absence from the room, the non-striker may appoint a deputy to watch his interests and claim a foul if necessary. Such appointment must be made known to the referee prior to departure.

6. Conceding
A player may only concede when he is the striker. The opponent has the right to accept or refuse the concession, which becomes null and void if the opponent chooses to play on.

SECTION 5. THE OFFICIALS

1. The Referee

1. the referee shall

1. be the sole judge of fair and unfair play
2. be free to make a decision in the interests of fair play for any situation not covered adequately by Rule,
3. be responsible for the proper conduct of the game under these Rules,
4. intervene if he sees any infringement of these Rules,
5. clean any ball upon reasonable request by a player.

2. The referee shall not

1. answer any question not authorised in these Rules,
2. give any indication that a player is about to make a foul stroke,
3. give any advice or opinion on points affecting play, nor
4. answer any question regarding the difference in scores.

3. If the referee has failed to notice any incident, he may take the evidence of the marker or other officials or spectators best placed for observation to assist his decision.

2. The Marker
The marker shall keep the score on the scoreboard and assist the referee in carrying out his duties. He shall also act as recorder if necessary.

3. The Recorder
The recorder shall maintain a record of each stroke played, showing fouls, hazards and cannons where appropriate and how many points are scored by each player or side as required. He shall also make a note of break totals, and calculate average scores per turn after the completion of the game.

4. Assistance by Officials

1. At the striker's request, the referee or marker shall move and hold in position any lighting apparatus that interferes with the action of the striker in making a stroke.
2. It is permissible for the referee or marker to give necessary assistance to handicapped players according to their circumstances