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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. 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. Game complexity - Wikipedia

    en.wikipedia.org/wiki/Game_complexity

    The game tree size is the total number of possible games that can be played. This is the number of leaf nodes in the game tree rooted at the game's initial position.. The game tree is typically vastly larger than the state-space because the same positions can occur in many games by making moves in a different order (for example, in a tic-tac-toe game with two X and one O on the board, this ...

  5. Alpha–beta pruning - Wikipedia

    en.wikipedia.org/wiki/Alpha–beta_pruning

    Alpha–beta pruning is a search algorithm that seeks to decrease the number of nodes that are evaluated by the minimax algorithm in its search tree.It is an adversarial search algorithm used commonly for machine playing of two-player combinatorial games (Tic-tac-toe, Chess, Connect 4, etc.).

  6. Endgame tablebase - Wikipedia

    en.wikipedia.org/wiki/Endgame_tablebase

    The tablebases of all endgames with up to seven pieces are available for free download, and may also be queried using web interfaces. [28] Research on creating an eight-piece tablebase started in 2021. [29] During an interview with Google in 2010, Garry Kasparov said that "maybe" the limit will be 8 pieces. Because the starting position of ...

  7. Monte Carlo tree search - Wikipedia

    en.wikipedia.org/wiki/Monte_Carlo_tree_search

    The rating of best Go-playing programs on the KGS server since 2007. Since 2006, all the best programs use Monte Carlo tree search. [14]In 2006, inspired by its predecessors, [15] Rémi Coulom described the application of the Monte Carlo method to game-tree search and coined the name Monte Carlo tree search, [16] L. Kocsis and Cs.

  8. Notakto - Wikipedia

    en.wikipedia.org/wiki/Notakto

    Notakto is a tic-tac-toe variant, also known as neutral or impartial tic-tac-toe. [ 1 ] [ 2 ] The game is a combination of the games tic-tac-toe and Nim , [ 1 ] [ 3 ] played across one or several boards with both of the players playing the same piece (an "X" or cross).

  9. Quantum tic-tac-toe - Wikipedia

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

    Quantum tic-tac-toe is a "quantum generalization" of tic-tac-toe in which the players' moves are "superpositions" of plays in the classical game. The game was invented by Allan Goff of Novatia Labs , who describes it as "a way of introducing quantum physics without mathematics", and offering "a conceptual foundation for understanding the ...