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Order and chaos

variant of tic-tac-toe on a 6×6 board, invented by S. Sniderman in 1981, in which the player Order tries to create a 5-in-a-row (either X or O); the opponent Chaos tries to stop this

Pronunciation
/ˈɔːdə ənd ˈkeɪɒs/
/ˈɔrdər ænd ˈkeɪˌɑs/