Horowitz is a UCI-compatible open source chess engine initially written in Go. Now rewritten in C++.
Logo from Darius (I couldn't find the Horowitz engine logo anywhere).
Here is what author OliveriQ wrote about the latest version:
This version essentially consists of a simpler evaluation function and a much faster search function. This has produced a reasonable gain in playing strength. Evaluation now uses PSQT's + Material (both now incrementally updated) and mop-up evaluation for converting late endgame positions. Other changes include various bug fixes.
Here are the final scores of v2.1.0 vs v2.0.0 in a match consisting of 100 games (TC 40/10s + 0.1):
With well-written code, the Horowitz-2.1.0 chess engine can be easily compiled for popular operating systems.
Below are compilations for Linux (arm, intel), Mac (apple silicon, intel) and of course for Windows.
We wish the author good luck and joy in developing this cool chess engine :)