Snooker game continues in this manner until all the reds are potted and only the six colours are left on the table. At this point the colours must be potted in the order from least to most valuable ball – that is, yellow first (two points), then green (three points), brown (four points), blue (five points), pink (six points) and finally black (seven points), the balls not being returned to play. When the final ball is potted, the player with more points wins. If the scores are equal when all the balls have been potted, the black is placed back on
Rules of snooker play a shot that leaves the opponent unable to hit a ball "on" directly. This is most commonly called "snookering" one's opponent, or alternatively "laying a snooker" or putting the other player "in a snooker". Because players receive points for fouls by their opponents, repeatedly snookering one's opponent is a possible way of winning a frame when potting all the balls on the table would be insufficient to ensure a win or tie. This portion of the frame is known as the "snookers-required" stage. A free ball is a player-nominated substitute for the ball "on" when a player becomes snookered