3
I Use This!
High Activity
Analyzed about 15 hours ago. based on code collected about 16 hours ago.

Project Summary

Stockfish is a free UCI chess engine derived from Glaurung 2.1. It is
not a complete chess program and requires some UCI-compatible GUI
(e.g. XBoard with PolyGlot, eboard, Arena, Sigma Chess, Shredder, Chess
Partner or Fritz) in order to be used comfortably. Read the
documentation for your GUI of choice for information about how to use
Stockfish with it.

Tags

c++ chess engine uci

Badges

GNU General Public License v3.0 or later
Permitted

Commercial Use

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Sub-License

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Distribute Original

Disclose Source

Include Copyright

State Changes

Include License

Include Install Instructions

These details are provided for information only. No information here is legal advice and should not be used as such.

Project Security

Vulnerabilities per Version ( last 10 releases )

There are no reported vulnerabilities

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

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About Project Security

Languages

C++
88%
Make
5%
3 Other
7%

30 Day Summary

Dec 7 2025 — Jan 6 2026

12 Month Summary

Jan 6 2025 — Jan 6 2026
  • 449 Commits
    Down -43 (8%) from previous 12 months
  • 64 Contributors
    Up + 18 (39%) from previous 12 months