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  2. Matchbox Educable Noughts and Crosses Engine - Wikipedia

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

    Each box had a code number, which was keyed into a chart. This chart had drawings of tic-tac-toe game grids with various configurations of X, O, and empty squares, [4] corresponding to all possible permutations a game could go through as it progressed. [11]

  3. Negamax - Wikipedia

    en.wikipedia.org/wiki/Negamax

    Negamax search is a variant form of minimax search that relies on the zero-sum property of a two-player game.. This algorithm relies on the fact that ⁠ (,) = (,) ⁠ to simplify the implementation of the minimax algorithm.

  4. 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.

  5. 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 ...

  6. Rosetta Code - Wikipedia

    en.wikipedia.org/wiki/Rosetta_Code

    Rosetta Code is a wiki-based programming chrestomathy website with implementations of common algorithms and solutions to various programming problems in many different programming languages. [ 1 ] [ 2 ] It is named for the Rosetta Stone , which has the same text inscribed on it in three languages, and thus allowed Egyptian hieroglyphs to be ...

  7. Takuzu - Wikipedia

    en.wikipedia.org/wiki/Takuzu

    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. The two-player game's goal is to create three in a row, while in Tic-Tac-Logic, the goal is to prevent any three in a row. [4]

  8. 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]

  9. Breadth-first search - Wikipedia

    en.wikipedia.org/wiki/Breadth-first_search

    Animated example of a breadth-first search. Black: explored, grey: queued to be explored later on BFS on Maze-solving algorithm Top part of Tic-tac-toe game tree. Breadth-first search (BFS) is an algorithm for searching a tree data structure for a node that satisfies a given property.