tablebase

Tablebase server

NhatMinh chess endgame tablebase

Chaxmat: free, open-source chess trainer for desktop and Android (English/French) · entraîneur d'échecs libre. Analyses your chess.com and Lichess games with Stockfish, drills your openings with spaced repetition, trains endgames against the Lichess tablebases.

Benchmark suite and results for lila-tablebase

Tablebase compression tests

Deep learning approach to chess tablebase compression using geometric position encoding. Achieves 99.93% accuracy on 3-piece endgames with 79.7x compression ratio vs Syzygy format.

Exhaustive helpmate tablebases for chess problem composers — CLI, API and Website for helpmate tablebases of fixed material. Datasets at https://huggingface.co/datasets/osick/helpmate-tables complete through 5 pieces. For 6 and 7 pieces contributions wanted.

Confronts lichess puzzles V2 to syzygy tablebase

A Flip Jungle (翻翻棋, hidden-identity animal chess) engine in Rust

syzygy tablebases for chess variants

Low level Rust bindings for https://github.com/tolius/antichess-tb-api

Every American checkers (English draughts) position with four pieces or fewer, solved exactly: 6,408,836 positions with win/loss/draw and the exact distance to the end. 1.8 MB, CC BY 4.0, with a dependency-free Python reader.

Endgame trainer microservice for ilovepawn — perfect-play opponent powered by Syzygy tablebases

Independent checks and tools for chesstb endgame tablebases and cdb: a reference generator, DTM50 PV walker, prober client, benchmarks and a PV trust metric.

SkyLance C++20 UCI chess engine and Syzygy endgame reader, with auditable correctness and performance evidence.

Bounded retrograde exploration and proof propagation for constrained chess research

A Java chess engine with persistent graph exploration, exact endgame solving, and interactive analysis.

Chess engine including board representation, move generation, and tablebase algorithms

Open-source tools for building and improving computer chess opening books, including Source2Metal and SyzygyCheck.

Tablebase generator for Onitama board game