Pigeon is a 64-bit chess engine, written by
Stuart Riffle.
It runs on Windows and Linux, and will plug into any UCI-compatible
chess GUI.
Full C++
source code is available on GitHub,
under the
MIT license.
Download Pigeon
The latest version is rated about
2000 against humans online at
ICC
and
FICS, which is pretty good (for a bird). Playing against
other chess engines, it has a
CCRL 40/4 rating of about
1750, which is... somewhat less good.
But Pigeon always tries very hard. Here it is playing on
lichess:
