Under normal circumstances, the highest possible century in snooker is 147 (a "maximum break"), composed of 15 reds (one point each), 15 blacks (seven points each) and the six remaining colours; yellow, green, brown, blue, pink and black potted consecutively (two through seven points each for a total of 27). If for example only the least-valued colour (yellow, two points) would be used instead of the black ball, the break value would only be 72 points. This means that only a single century break is possible in a frame of snooker under a limited number of combinations, but it requires the potting of at least 25 consecutive balls (10 x (1 + 7) + 2 + 3 + 4 + 5 + 6 = 100).[1] To score one, there must be at least ten reds on the table when the player comes to play since if there are only nine reds left, only 99 (= 9 × (1 + 7) + 27) points may be scored.