Multi-platform
Native builds for Windows, Linux and Android, supporting Intel, AMD and ARM processors in 32 and 64 bits.
Free chess engine · Since 2000
Serious chess.
Open to everyone.
Alfil is a powerful C++ chess engine with UCI and Winboard support, built for Windows, Linux and Android.
- 2700+ELO
- 3Platforms
- UCI& Winboard
Engine capabilities
Built to play anywhere
From classic desktop interfaces to Android devices, Alfil combines strength, compatibility and years of development.
Openings & tables
CTG opening-book support with three included book sizes, plus Nalimov endgame table compatibility.
Interface friendly
Works with UCI and Winboard chess interfaces, with an accessible Winboard setup in Spanish and English.
Multi-threaded
Use multiple processor cores and play Chess960, the Fischer variant with 960 possible starting positions.
Proven strength
More than 2700 ELO in recent versions, the result of continuous improvement since the first Alfil releases.
Beyond classic chess
Discover walls, holes, missions and alternative objectives in the Chessaria AICE engine.
Explore Chessaria AICE →In action
Screenshots
Choose your build
Download Alfil
Free versions for your preferred platform. Older releases remain available for compatibility and chess-engine history.
Recommended
Windows
Complete installer for Alfil 13.1.
Download installerNo installation
Portable
Run Alfil directly from a folder or USB drive.
Download portableOlder portable build
Alfil 13 portableFor chess GUIs
Engine only
Use Alfil with your preferred UCI or Winboard interface.
Download engineOpen platform
Linux
Multi-threaded Linux builds and classic releases.
Download LinuxMobile
Android
Play on Android or use the engine in a compatible chess app.
Open Google PlayMore than two decades
A chess engine with history
Alfil began as a university project and grew into commercial games, free engines and a new generation of tactical chess experiences.
Chessaria
A fantasy tactical adventure powered by a 2800+ ELO chess engine, story missions and multiple game modes.
Visit Chessaria →Alfil Chess I
Published by Hollywood Publishing, with more than two thousand copies distributed.
Download →TotalChess 2000
The first graphical game featuring the original Alfil engine, later followed by a 3D edition distributed by PC Magazine.
Download →Get in touch
Questions about Alfil?
Send a message for information about the engine, compatibility or its history.
alfilchess@esacosta.com