computer-chess

C# Chess Engine

Single-file chess engine under 1k LoC of C99 with full FIDE rules and UCI support.

Computer chess index

NNUE Chess engine in C++

Milky // A hopefully strong UCI chess engine

42's club chess engine.

An experimental UCI-compatible chess engine designed to explore Modern B* and custom DCP/DCPS search algorithms. At its core, it combines classical B*, PUCT, and various evaluation and policy networks.

Crafty 25.6.1 with HCE, project-trained NNUE Light, and CraftyNNv2 Heavy evaluation modes.

A free, open-source C++20 UCI chess engine with NNUE evaluation, Lazy SMP multithreading, and Syzygy tablebase support. Named after Coco from Witch Hat Atelier.

A bitboard based chess engine

Multilingual Windows integrity checker for Syzygy chess tablebases, with multithreading, checkpoint/resume and reporting.

Zipped PGNs of the Chesscom CCC

uma engine de xadrez em c++

From-scratch C++ chess engine built around my own search and handcrafted evaluation. Uses bitboards, alpha-beta/PVS, transposition tables, PickleBook, UCI, and WebAssembly browser play. Currently ~2450 local calibrated Elo from engine-v-engine testing.

NARC Engine - a grandmaster-strength UCI chess engine built from scratch with a self-trained NNUE. ~3013 CCRL. Closed source.

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

Public repository for PHILOCHESS, a learning-oriented UCI chess engine written in C++ and designed to provide an accessible introduction to chess-engine development and the fundamental principles of chess.