Rules of Snooker
1. A legally potted ball entitles the striker to continue at the table until
he fails to legally pot a ball.
2. On all shots, the striker must comply with the appropriate requirements
of Rules of Play 5 and 6. It is not necessary to cause the cue ball or an object
ball to contact a cushion or drop in a pocket after the cue ball has contacted
a legal object ball (ball on). Failure to contact a legal object ball first
is a foul.
3. As long as reds are on the table, the incoming striker (player taking his
first stroke of an inning) always has a red as his legal object ball (ball
on).
4. Any red balls potted on a legal shot are legally potted balls; the striker
need not call any particular red ball(s), pocket(s) or details of how the pot
will be played.
5. When the striker has a red ball as his "ball on" (legal object ball), he
must cause the cue ball's first contact to be with a red ball. Failure to do
so is a foul (See Penalties For Fouls)
6. After the striker has scored a red ball initially, his next legal object
is a color, and as long as reds remain on the table he must alternate his play
between reds and colors (though within each group he may play a ball of his
choice). When reds remain on the table and a color is his object, the striker
must (a) designate prior to stroking which color ball is his object (that specific
color is then his "ball on"), and (b) cause the cue ball's first contact with
a ball to be with that colored ball. If the striker fails to meet these requirements,
it is a foul (See Penalties For Fouls).
7. If the striker's ball on is a red, and he pots a color, it is a foul.
8. If the striker's ball on is a color, and he pots any other ball, it is
a foul.
9. Jump shots are illegal in International Snooker. It is a foul if the striker
intentionally causes the cue ball to jump (rise from the bed of the table)
by any means, if the jump is an effort to clear an obstructing ball.
10. While reds remain on the table, each potted color is spotted prior to
the next stroke (see Spotting Balls below for spotting rules). After a color
has been spotted, if the striker plays while that ball is incorrectly spotted
(and opponent or referee calls it before two such plays have been taken), the
shot taken is a foul. If the striker plays two strokes after such error without
its being announced by opponent or referee, he is free of penalty and continues
playing and scoring normally as though the spotting error simply had not occurred.
The striker is responsible for ensuring that all balls are correctly spotted
before striking. If the striker plays while a ball(s) that should be on the
table is not a foul may be awarded whenever the foul is discovered during the
striker's inning. Any scoring prior to the discovery of the foul will count.
11. When no reds remain on the table, striker's balls on become the colors,
in ascending numerical order (2,3,4,5,6,7). These legally potted colors are
not spotted after each is potted; they remain off the table. (The black (7)
ball is an exception in the case of a tie score; see Scoring.)
Illegally Potted Ball:
Reds illegally potted are not spotted; they
remain off the table. Colors illegally potted are spotted. (See Spotting Balls.)
Object Balls Jumped off the Table:
Reds jumped off the table are not
spotted and the striker has committed a foul. Colors jumped off the table are
spotted and the striker has committed a foul. (See Penalties For Fouls)
Spotting Balls:
Reds are never spotted. Colors to be spotted are placed
as at the start of the game. If a color's spot is occupied (to mean that to
spot it would make it touch a ball), it is placed on the spot of the highest
value color that is unoccupied. If all spots are occupied, the color is spotted
as close as possible to its original spot on a straight line between its spot
and the nearest point on the top (foot) cushion.
Cue Ball after Jumping off the Table:
Incoming player has cue ball
in hand within the Half Circle. When cue ball is in hand within the Half Circle
(except the opening break), there is no restriction (based on position of reds
or colors) as to what balls may be played; striker may play at any ball on
regardless of where it is on the table.
Touching a Ball:
While balls are in play it is a foul if the striker
touches any object ball or if the striker touches the cue ball with anything
other than the tip during a legal stroke.
Snookered:
The cue ball is snookered when a direct stroke in a straight
line to any part of every ball on is obstructed by a ball or balls not on.
If there is any one ball that is not so obstructed, the cue ball is not snookered.
If in-hand within the Half Circle, the cue ball is snookered only if obstructed
from all positions on or within the Half Circle. If the cue ball is obstructed
by more than one ball, the one nearest to the cue ball is the effective snookering
ball.
Angled:
The cue ball is angled when a direct stroke in a straight line
to any part of every ball on is obstructed by a corner of the cushion. If there
is any one ball on that is not so obstructed, the cue ball is not angled. If
angled after a foul the referee or player will state "Angled Ball", and the
striker has the choice to either (1) play from that position or (2) play from
in hand within the Half Circle.
Occupied:
A spot is said to be occupied if a ball cannot be placed
on it without its touching another ball.
Touching Ball:
If the cue ball is touching another ball which is, or
can be, on, the referee or player shall state "Touching Ball." Thereafter the
striker must play away from it or it is a push stroke (foul). No penalty is
incurred for thus playing away if (1) the ball is not on; the ball is on and
the striker nominates such ball; or (3) the ball is on and the striker nominates,
and first hits, another ball. [If the referee considers that a touching ball
has moved through an agency other than the player, it is not a foul.]
Push Stroke:
A push stroke is a foul and is made when the tip of the
cue remains in contact with the cue ball (1) when the cue ball makes contact
with the object ball, or (2) after the cue ball has commenced its forward motion.
Provided that where the cue ball and an object ball are almost touching, it
shall be deemed a legal stroke if the cue ball hits the finest possible edge
of the object ball.
Miss:
The striker shall to the best of his ability endeavor to hit
the ball on. If the referee considers the rule infringed he shall call foul
and a "miss." The incoming player (1) may play the ball(s) as they lie, or
(2) may request that the ball(s) be returned to the original position and have
the offending player play the stroke again. Note: if the ball on cannot possibly
be hit, the striker is judged to be attempting to hit the ball on.
Free Ball:
After a foul, if the cue ball is snookered, the referee
or player shall state "Free Ball." If the non-offending layer takes the next
stroke he may nominate any ball as on. For this stroke, such ball shall be
regarded as, and acquire the value of, the ball on. It is a foul should the
cue ball fail to first hit, or - except when only the pink and black remain
on the table - be snookered by, the free ball. If the "free ball" is potted,
is is spotted, and the value of the ball on is scored. if the ball on is potted
it is scored. If both the "free ball" and the ball on are potted, only the
value of the ball on is scored.
Fouls
If a foul is committed:
1. the player who committed the foul incurs the penalty prescribed (which
is added to the opponent's score), and has to play again if requested by the
next player. Once such a request has been made it cannot be withdrawn. 2. should
more than one foul be committed in the same stroke the highest value penalty
shall be incurred. 3. any ball improperly spotted shall remain where positioned,
except that if off the table it shall be correctly spotted.
Penalties for Fouls
The following are fouls and incur a penalty of four points or the higher one
prescribed:
1. value of the ball on -
by striking:
a) when the balls are still moving from the previous shot. b) the cue ball
more than once (double hit). c) without at least one foot on the floor. d)
out of turn. e) improperly from in hand within the Half Circle.
by causing:
f) the cue ball to miss all object balls. g) the cue ball to enter a pocket.
h) a snooker with free ball. i) a jump shot.
2. value of the ball on or ball concerned -
by causing:
a) a ball not on to enter a pocket. b) the cue ball to first hit a ball not
on. c) a push stroke. d) by striking with a ball not correctly spotted. e)
by touching a ball with other than the tip of the cue. f) by forcing a ball
off the table.
3. value of the ball on or higher value of the two balls by causing the cue
ball to hit simultaneously two balls other than two reds or a "free ball" and
the ball on.
4. penalty of seven points is incurred if -
the striker
a) after potting a red commits a foul before nominating a color.
b) uses a ball off the table for any purpose.
c) plays at reds in successive strokes.
d) uses as the cue ball any ball other than the white one.