Chess app written in Java in 2005. Winner of the OBEA programming contest at age 17.
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README.rdoc

chess

This is the Chess app that won first prize back in 2005 for the OBEA Computer Programming Contest by Arwid (Arvydas) Bancewicz at age 17.

References

Highlights

Extracted from javadoc.

  • algorithms/

    • MiniMax

      serves as the foundation of chess programs. It is a strategy that minimizes the maximum risk for a player, going through all of the branches in the move tree and evaluating the board position.
    • AlfaBeta

      is a refined minimax strategy that identifies unfavorable branches in the move tree and removes them early, thus speeding up the search process. This technique is called "alfa-beta pruning".
    • NegaScout

      is a variation of the "alfa-beta pruning" technique.
    • PrincipalVariation

      is a variation of alpha-beta search where all nodes outside the principal variation are searched with a minimal window beta = alpha + 1. The idea is that with perfect move ordering all moves outside the principal variation will be worse than the principal variation.
    • MoveAlgorithm (SuperClass)

      is the super class for the search algorithms. It consists of all the required utilities defining a playable chess game, such as: move definitions, composing moves from move definitions, applying board position circumstances to the move definition (eg. a piece cannot move to put it's king in check), composing lists of possible moves, and board evaluations based on piece and position costs.
  • core/

  • gui/

  • media/

  • network/

  • online/

  • properties/

Copyright

Copyright © 2005 Arwid (Arvydas) Bancewicz

GNU GENERAL PUBLIC LICENSE Version 2, June 1991.

See source/chess/GNULicence.txt for details.