This means that in order to establish a legal hit, the cue ball must contact the lowest numbered ball first, and subsequently at least one ball must hit any rail or be pocketed, without the cue ball being pocketed. Most of the same rules apply as in nine-ball. The 10 balls are racked in a triangle as in the game of eight-ball (but with 10 instead of 15 object balls, forming a tetractys), with the 1 ball positioned at the apex of the rack, the 2 and 3 balls on the bottom corners of the triangle (non-specific), the 10 ball positioned in the middle of the rack, and the other balls placed randomly throughout, with the apex ball on the foot spot. The World Pool-Billiard Association (WPA) World Standardized Rules for 10-ball are very similar to those for nine-ball, but with key changes to ensure the difficulty of the game and its marketability as an alternative to nine-ball. Ten-ball is preferred over nine-ball by some professionals as a more challenging discipline than nine-ball, because it is slightly harder to pocket any balls on the break shot with the more crowded rack, the initial shooter cannot instantly win the game by pocketing the 10 on the break, all shots must be called, and performing a string of break-and-runs on successive racks is statistically more difficult to achieve.ДЄlthough the game has existed for a long time, its popularity has risen in recent years as a result of concerns that nine-ball has suffered as a result of flaws in its fundamental structure (particularly the ease with which players can often make balls from the break). It is a rotation game very similar to nine-ball, but more difficult, using 10 balls instead of nine, and with the 10 ball instead of the nine as the ' money ball'.

The remaining balls can be in any position. A valid ten-ball rack the 1 is at the apex on the foot spot, the 2 and 3 balls are on the corners, and the 10 (the money ball) is in the center.

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