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
Black Box (game) each misidentified atom position costs penalty points: ten in the original Waddingtons rules, five in the Parker Brothers version and most computer editions. Different atom positions lead to different average scores - a very easy four-ball game might average eight or nine points to solve, while a very hard game might average 18 points. The most common variant of "Black Box" is played on an 8×8 grid with five (or more) atoms. Five-atom configurations allow for positions that cannot be unambiguously determined by probes. The grid at left shows an example of this. If the fifth atom is in any