/4ku-executable

Trying to fit a UCI chess engine into 4,096 bytes.

Primary LanguageC++MIT LicenseMIT

4ku

Trying to fit a chess engine into 4,096 bytes with some mild success. Uses xz.

Build

git clone https://github.com/kz04px/4ku
cd 4ku
sh build-linux.sh

Executable Size

Varies from system to system, but for me it's currently at 2,970 bytes.

UCI Support

The UCI protocol isn't strictly followed in the interests of space:

  • The first line of input after startup will be interpreted as "uci" even if it isn't.
  • "stop" is unsupported.
  • Both "position fen [fen]" and "position startpos" are ignored.
  • Only wtime and btime are supported.

Thanks

  • Catch2 -- A modern, C++-native, header-only, test framework for unit-tests, TDD and BDD - using C++11, C++14, C++17 and later.
  • Roman Hartmann's perft suite.
  • Thanks to friends for help with compiler flags, xz scripts, and code review.