A UCI-compatible four-player chess engine
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Updated
Aug 19, 2026 - C++
A UCI-compatible four-player chess engine
Enjoy a game of chess with 4 players! This is a web-based chess game that allows you to play with friends. The game is designed to be played in a web browser and is compatible with most modern browsers. Currently the game is in beta and is being actively developed. The game is open source and contributions are welcome!
command line tool for chess engine matches
A four-player chess engine built to play the strongest 4PC it can. NNUE evaluation, an alpha-beta core in C and a Python root. Perft-verified move generation, all five starting setups, and a browser board to play against it. Plays Teams; FFA rules implemented, FFA search in progress.
A novel four-player chess engine — OPPS + Swarm tactical resolution + MCTS + NNUE. Built from first principles for 14x14 FFA chess
A Chess.com client for connecting UCI-compatible four-player chess engines.
Four-player chess on a 14x14 board. Zero-dependency rules engine validated by differential testing against a second independent implementation.
Chaturaji analysis tool and engine: Flutter UI + C++ MCTS search engine + NNUE evaluation
Team four-player chess engine with live iterative analysis and an interactive local GUI
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