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  2. 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 ...

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

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

    However, Nim with the 1-3-5-7 starting position is a second-player-win. The classic game of Connect Four has been mathematically proven to be first-player-win. With perfect play, checkers has been determined to be a draw; neither player can force a win. [1] Another example of a game which leads to a draw with perfect play is tic-tac-toe, and ...

  4. Tic-tac-toe variants - Wikipedia

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

    In wild tic-tac-toe, players can choose to place either an X or O on each move. [7] [39] [40] [41] It can be played as a normal game where the player who makes three in a row wins or a misere game where they would lose. [7] This game is also called your-choice tic-tac-toe [42] or Devil's tic-tac-toe. [citation needed]

  5. Strong positional game - Wikipedia

    en.wikipedia.org/wiki/Strong_positional_game

    It is played by two players, called First and Second, who alternately take previously untaken positions. In a strong positional game, the winner is the first player who holds all the elements of a winning-set. If all positions are taken and no player wins, then it is a draw. Classic Tic-tac-toe is an example of a strong positional game.

  6. 3D tic-tac-toe - Wikipedia

    en.wikipedia.org/wiki/3D_tic-tac-toe

    3-D Tic-Tac-Toe played with glass beads. 3D tic-tac-toe, also known by the trade name Qubic, is an abstract strategy board game, generally for two players. It is similar in concept to traditional tic-tac-toe but is played in a cubical array of cells, usually 4×4×4. Players take turns placing their markers in blank cells in the array.

  7. Positional game - Wikipedia

    en.wikipedia.org/wiki/Positional_game

    The classic example of a positional game is tic-tac-toe. In it, X {\displaystyle X} contains the 9 squares of the game-board, F {\displaystyle {\mathcal {F}}} contains the 8 lines that determine a victory (3 horizontal, 3 vertical and 2 diagonal), and the winning criterion is: the first player who holds an entire winning-set wins.

  8. SOS (paper-and-pencil game) - Wikipedia

    en.wikipedia.org/wiki/SOS_(paper-and-pencil_game)

    An incomplete game of SOS. SOS is paper and pencil game for two or more players. It is similar to tic-tac-toe and dots and boxes, but has much greater complexity. [1] SOS is a combinatorial game when played with two players. In terms of game theory, it is a zero-sum, sequential game with perfect information.

  9. nd game - Wikipedia

    en.wikipedia.org/wiki/Nd_game

    A n d game (or n k game) is a generalization of the combinatorial game tic-tac-toe to higher dimensions. [1] [2] [3] It is a game played on a n d hypercube with 2 players. [1] [2] [4] [5] If one player creates a line of length n of their symbol (X or O) they win the game. However, if all n d spaces are filled then the game is a draw. [4] Tic ...