Woodstock is a work in progress! Expect issues.

You can play against Woodstock here.

About

This branch contains the woodstock chess engine and AI in C++, to be compiled to web assembly for running in the browser.

Currently, Woodstock searches

Features

• Magic Bitboards for sliding pieces
• Playable as White/Black
• Minimaxing/Negamaxing/Negascouting with Alpha-Beta pruning
• Playable on Browser with WebAssembly
• Interactable Chessboard
• Load from FEN string
• PGN Export
• Different Mid/Endgame evaluations (WIP)
• Transposition Table with Zobrist Hashing (WIP)
• Iterative Deepening Search (WIP)
• Follows all Chess Rules (Only missing insufficient material & 50 move)
• UCI Compliant (WIP)
• Opening Book (TODO)

Dependencies

• make
• g++ or clang
• clang-format for linting
• emscripten for compiling to web assembly
• python for debug web page serving

Make Commands

General

• clean: Removes the build/ folder
• format: Formats files based on LLVM style

Testing

The following make command can take an optional argument target, which can be web, g++, or clang. The default is web.

• debug: Compiles and runs based target

Example with target:

make debug target=clang

Compilation

The following make command can take an optional argument target, which can be web, g++, or clang. The default is web.

• build: Builds target to build/.
  • Compiles with emcc for web
  • Compiles with g++ for g++
  • Compiles with clang for clang

Running

• run: Runs binary if it exists in build/
• serve Uses python to serve to localhost:8000