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vision-chess's Introduction

Description:

Vision-Chess is a UCI compatible chess engine written in C++. It is capable of 200m+ leaf nodes per second during perft search, and around 2m nodes per second during a real search. In the starting position, it searches to depth 16 in about 5 seconds. Building target 'Vision' gives you the UCI engine, while building 'test' runs a benchmark on several perft positions and puzzles.

Optimizations used include:

  • bitboard board representation
  • magic bitboard move generation
  • transposition hash table
  • alpha-beta pruning
  • move ordering hueristics
    • counter-move hueristic
    • history hueristic
  • late move depth reduction
  • quiescence search
  • search extension for checks in quiescence search

Work is currently being done to implement an NNUE structure to improve position evaluation

vision-chess's People

Contributors

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Stargazers

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Watchers

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vision-chess's Issues

crash

crashes when searching followin position

r3k2r/ppp2ppp/1q2p3/3p2P1/1b1Pb3/2B1PN1P/PPP2P2/1R1QK2R w Kkq - 2 14

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