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  2. How to Win Tic-Tac-Toe: The Strategies You Need to Master - AOL

    www.aol.com/win-tic-tac-toe-strategies-190027489...

    How to win tic tac toe requires strategic thinking and planning to win the game or force a draw. When you’re the first one up, there is a simple strategy on how to win tic tac toe: put your ‘X ...

  3. First-player and second-player win - Wikipedia

    en.wikipedia.org/wiki/First-player_and_second...

    Diagram showing optimal strategy for tic-tac-toe.With perfect play, and from any initial move, both players can always force a draw. In combinatorial game theory, a two-player deterministic perfect information turn-based game is a first-player-win if with perfect play the first player to move can always force a win.

  4. Tic-tac-toe - Wikipedia

    en.wikipedia.org/wiki/Tic-tac-toe

    Tic-tac-toe A completed game of tic-tac-toe Other names Noughts and Crosses Xs and Os Genres Paper-and-pencil game Players 2 Setup time Minimal Playing time ~1 minute Chance None Skills Strategy, tactics, observation Tic-tac-toe (American English), noughts and crosses (Commonwealth English), or Xs and Os (Canadian or Irish English) is a paper-and-pencil game for two players who take turns ...

  5. Matchbox Educable Noughts and Crosses Engine - Wikipedia

    en.wikipedia.org/wiki/Matchbox_Educable_Noughts...

    It was designed to play human opponents in games of noughts and crosses (tic-tac-toe) by returning a move for any given state of play and to refine its strategy through reinforcement learning. This was one of the first types of artificial intelligence.

  6. Strategy-stealing argument - Wikipedia

    en.wikipedia.org/wiki/Strategy-stealing_argument

    A strategy-stealing argument can be used on the example of the game of tic-tac-toe, for a board and winning rows of any size. [2] [3] Suppose that the second player (P2) is using a strategy S which guarantees a win. The first player (P1) places an X in an arbitrary position. P2 responds by placing an O according to S.

  7. nd game - Wikipedia

    en.wikipedia.org/wiki/Nd_game

    Tic-tac-toe is the game where n equals 3 and d equals 2 (3, 2). [4] Qubic is the (4, 3) game. [4] The (n > 0, 0) or (1, 1) games are trivially won by the first player as there is only one space (n 0 = 1 and 1 1 = 1). A game with d = 1 and n > 1 cannot be won if both players are playing well as an opponent's piece will block the one-dimensional ...

  8. Pairing strategy - Wikipedia

    en.wikipedia.org/wiki/Pairing_strategy

    An example of such pairing-strategy for 5-by-5 tic-tac-toe is shown above. [1]: 2–3 show other examples for 4x4 and 6x6 tic-tac-toe. Another simple case when Breaker has a pairing-strategy is when all winning-sets are pairwise-disjoint and their size is at least 2.

  9. Solved game - Wikipedia

    en.wikipedia.org/wiki/Solved_game

    A solved game is a game whose outcome (win, lose or draw) can be correctly predicted from any position, assuming that both players play perfectly.This concept is usually applied to abstract strategy games, and especially to games with full information and no element of chance; solving such a game may use combinatorial game theory and/or computer assistance.