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Tac Tix Online Game

Tac Tix is an online game, in which you and your computer take turns removing counters from the board. The goal of the game is to force your computer to be the one to remove the last counter. Tac Tix is a variation of Nim, one of the oldest of mathematical games.

Instructions: On any turn, you may remove counters from either a single row or a single column. The counters must be on adjacent squares (for example, you could not legally remove only two corner counters). You may remove as few as 1 or as many as 4 counters on your turn. To make a move, use the mouse to select the counters you want to remove from the board (hold down the Ctrl key to select more than one counter, then press the Move button. Selecting a counter twice will cancel the selection. The computer will make its move automatically after yours. To pass at the beginning of a game and have the computer make the first move, simply press the Move button without selecting any counters.

Note: it has been proven that the player who moves second can always win, if he or she plays perfectly. At the Expert level, the TacTix program will indeed play a perfect game. So if you want to win at the Expert level, you must let the computer move first!