Oldworld 0.6.0
==============

A UCI compliant chess engine with a hand-crafted classical evaluation.

Setup
-----
1. Unzip this folder wherever you keep your chess engines.
2. In your chess GUI, add a new UCI engine and point it at oldworld.exe.
3. Set Hash and Threads to suit your machine. Nothing else is required.

There is no network file or any other dependency. The engine is self-contained.

Which build to use
------------------
oldworld.exe in this archive is the x86-64-v2 (compatible) build.

  x86-64-v3  - faster; needs a CPU with AVX2 (roughly 2015 and newer).
  x86-64-v2  - compatible; runs on much older hardware.

If the v3 build fails to start, use the v2 archive instead.

For maximum speed on your own machine, build from source with
ARCH=native, which tunes the binary to your exact CPU.

Endgame tablebases
------------------
Syzygy tablebases are optional and not included (about 1 GB of external
data). To use them, put a folder named "syzygy" next to oldworld.exe, or
set the SyzygyPath option in your GUI.

Source and licence
------------------
Oldworld is free software under the GNU General Public License v3.
Full source: https://github.com/impossible1660/Oldworld

Copyright (C) 2026 Abrac.
Based on Berserk, Copyright (C) 2024 Jay Honnold.
