Mess is an open source, UCI-compliant chess engine. Mess is not a complete chess program and requires an UCI-compliant chess graphical user interface(e.g. XBoard with PolyGlot, Scid, Cute Chess, eboard, Arena, Sigma Chess, Shredder, Chess Partner or Fritz) to be used comfortably.

Mess's code structure is extremely modular and thus it may be used as a library for developing chess engines in go. The ./pkg directory will contain all the packages that are available for use publicly.

The MessChessEngine Bot is currently hosted on my laptop, and therefore might not always be online. The most reliable way to play against mess is to download the engine and use it with an UCI-compliant graphical user interface.

• 🖥️ Watch Mess Play on Lichess
• 🎮 Challange Mess on Lichess

Prebuilt binaries for mess can be found in the releases section of this repository. Binaries are only provided for release versions of Mess. Binaries have been provided for all the major operating systems, including Windows, Linux, and Darwin.

A list of all of Mess's releases can be found here.

The following need to be installed before you can install Mess:

• The Go Programming Language
• Git (for building from source)

go install laptudirm.com/x/mess@latest

# downloard mess (other methods also work)
git clone https://github.com/rakarchive/mess.git
cd mess

# building mess binary
make EXE=path # creates binary in path

Mess is licensed under the Apache 2.0 License.