tic3 (pronounced "tick cubed") is a variant of 3D ultimate tic-tac-toe.
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The board is divided into 3x3x3 "supercubes", which each contain 3x3x3 "subcubes".
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If you win three subcubes in a line, you win the corresponding supercube.
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If you win three supercubes in a line, you win the game.
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The subcube that you select determines which supercube your opponent will play in next.
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If you send your opponent to a completed supercube, they can play anywhere.
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You may not play in the centre supercube on the first turn of the game.
"Unity" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License