Max of 24 players. Players are divided in groups of four to play on 3 tables. Then new groups are formed and so on until all players have faced with each oponent. After that, the best 12 players are split in two groups of 6, where they play on the same machine, eliminating the worst score. Again the same procedure for the remaining 5 and so on until there is only 2 players per group. The 4 players then play the final game.