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