official-stockfish / Stockfish
git clone https://github.com/official-stockfish/Stockfish.git
sf_19 · 1mo ago
A free UCI chess engine that analyzes positions and computes the best moves, derived from Glaurung 2.1.
Why you might care
Stockfish is one of the strongest open-source chess engines, licensed under GPL-3.0 and usable with any UCI-compatible chess GUI. It ships without a GUI, so it works as a backend for analysis tools and other chess software; the README notes testing is distributed via Fishtest.
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stars, 24h · #6,597
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stars, 7 days · #3,432
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stars, 30 days · #2,359
17k
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3.1k
forks · 58 open issues
Star history (as recorded here)
LanguageC++
LicenseGPL-3.0
Created2014-06-18 (12y ago)
Last push5d ago
Watchers266
OwnerOrganization
Seen on GitHub Trending
- 2026-10-29 — #6 weekly in c++ · +120 ★
- 2026-10-28 — #6 weekly in c++ · +135 ★
- 2026-10-27 — #7 weekly in c++ · +143 ★
- 2026-10-25 — #6 weekly in c++ · +153 ★
GitHub topics
Links
- GitHub: github.com/official-stockfish/Stockfish
- Homepage: https://stockfishchess.org/
- Releases · Issues · Hacker News mentions
README
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Blurb generated by claude-haiku-5-5 6d ago. Star deltas marked ~ are extrapolated from partial history.