sunfish

Repository facts

Stars

3,299

Forks

582

Open issues and pull requests

4

Primary language

Python

License

Other license

Owner

thomasahle · Personal account

Created

Feb 10, 2014

Last push

Aug 27, 2026

Topics

• ai
• chess
• chess-ai
• chess-engine
• python
• sunfish

Rank #2,389 of 9,507 in AI on GitHub, by stars. Data from the GitHub API, fetched Oct 18, 2026; star counts change daily. Stars measure popularity, not quality or safety, and a listing is not an endorsement. How this list is made

Related projects

Projects that share this one’s GitHub topics.

• 2,420

  Rank 2,420: LeelaChessZero/lc0

  Open source neural network chess engine with GPU acceleration and broad hardware support.

  3,247 starsC++GPL-3.0Last push Oct 10, 2026

• 9,234

  Rank 9,234: clarkerubber/irwin

  irwin - the protector of lichess from all chess players villainous

  529 starsPythonAGPL-3.0Last push Dec 26, 2022

• 5,215

  Rank 5,215: CSSLab/maia-chess

  Maia is a human-like neural network chess engine trained on millions of human games.

  1,257 starsPythonGPL-3.0Last push May 24, 2026

• 9,130

  Rank 9,130: chrisbutner/ChessCoach

  Neural network-based chess engine capable of natural language commentary

  537 starsC++GPL-3.0Last push Nov 15, 2022

• 8,069

  Rank 8,069: sotetsuk/pgx

  ♟️ Vectorized RL game environments in JAX

  654 starsPythonApache-2.0Last push Mar 6, 2025

• 3,359

  Rank 3,359: Zeta36/chess-alpha-zero

  Chess reinforcement learning by AlphaGo Zero methods.

  2,229 starsJupyter NotebookMITLast push Mar 24, 2023