Pool Checkers game for Windows. The game PLUS900 realizes full rules of Pool Checkers. PLUS900 is self-training game! You play and play against PLUS900, and PLUS900 play more and more strongly! Options: - self-teaching; - "ponder" mode; - any starting position on the board; - save/load position/game; - position/game analysis; - function "undo/repeat moves"; - function "rotate board"; - recording game protocol; - different play opponent: computer, another player or PLUS900 play herself; - multilanguage support; - import/export Database file.