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  2. Takuzu - Wikipedia

    en.wikipedia.org/wiki/Takuzu

    There are two competing origins to the puzzle, both created around the same time. Tohu wa Vohu was invented by Italian Adolfo Zanellati. [3] Binairo was created by Belgians Peter De Schepper and Frank Coussement in 2009. [1] [13] Tic-Tac-Logic claims its origin on creating a single-player version of tic-tac-toe. Like tic-tac-toe, it uses Xs and Os.

  3. 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 ...

  4. Treblecross - Wikipedia

    en.wikipedia.org/wiki/Treblecross

    A completed game of Treblecross. Treblecross is a degenerate tic-tac toe variant. [1] The game is an octal game, [2] [3] played on a one-dimensional board and both players play using the same piece (an X or a black chip [4]). [5] [1] [3] Each player on their turn plays a piece in an unoccupied space. The game is won if a player on their turn ...

  5. Paper-and-pencil game - Wikipedia

    en.wikipedia.org/wiki/Paper-and-pencil_game

    In recent times, they have been supplanted by mobile games. [2] Some popular examples of pencil-and-paper games include tic-tac-toe, sprouts, dots and boxes, hangman, MASH, paper soccer, and spellbinder. [3] The term is unrelated to the use in role-playing games to differentiate tabletop games from role-playing video games.

  6. Three men's morris - Wikipedia

    en.wikipedia.org/wiki/Three_men's_morris

    In tic-tac-toe, pieces are placed (or marks are made) until the board is full; if neither player has an orthogonal or diagonal line at this point, the game is a draw. Extended tic-tac-toe, like the three men's morris game, each player has three pieces, but when moving pieces, players must first move their first pieces, then the second pieces ...

  7. Pigpen cipher - Wikipedia

    en.wikipedia.org/wiki/Pigpen_cipher

    The pigpen cipher uses graphical symbols assigned according to a key similar to the above diagram. [1]The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid.

  8. Tic-tac-toe variants - Wikipedia

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

    A complete game of Notakto, a misère variant of the game. Tic-tac-toe is an instance of an m,n,k-game, where two players alternate taking turns on an m×n board until one of them gets k in a row. [1] Harary's generalized tic-tac-toe is an even broader generalization. The game can also be generalized as a n d game. [2]

  9. 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.