Chess engine: Dumb 2.3 (Windows and Linux)
Author: Richard Delorme, Rating CED=2805
Dumb,a simple and stupid UCI compliant open source chess engine by Richard Delorme, written in the D programming language, released in June 2017 under the MIT License.
Dumb is a dumbed down version of Amoeba with just a basic evaluation function and basic search algorithms. Its purpose is to be a benchmark for weak engines [source].
Dumb version 2.3:
use magic bitboard for move generation
retuned evaluation function (still limited to material & positional square table).
retuned search parameters + probcut added
much better comments following the D convention
added logging facilities & eval/board display to better understand how the engine works
This version is bout 20 Elo stronger than version 2.1. Version 2.3 fix a regression introduced in 2.2
Dumb 2.3 - download
Dumb 2.1 - results:
| Ceibo 1.0 | 2/7 | -3 | 7 Games |
| Ares 2.3.14 | 5/6 | +4 | 6 Games |
| Apotheosis 4.0.1 | 4/6 | +2 | 6 Games |
| Ivanhoe 66 | 3.5/5 | +2 | 5 Games |
| Colossus 2022a | 3/5 | +1 | 5 Games |
| Ice4 v4 | 0/5 | -5 | 5 Games |
| Blunder 8.5.5 | 4/4 | +4 | 4 Games |
| ShenYu 2.0.1 | 4/4 | +4 | 4 Games |
| Piglet 1.3.6 | 4/4 | +4 | 4 Games |
| Akira CE 1.0.16 | 4/4 | +4 | 4 Games |
| Camel 1.5.1 | 3.5/4 | +3 | 4 Games |
| Zevra 2.5 | 3.5/4 | +3 | 4 Games |
| Floyd 0.9 JA | 3.5/4 | +3 | 4 Games |
| Galjoen 0.41.2 | 3/4 | +2 | 4 Games |
| Lishex 1.1.1 | 3/4 | +2 | 4 Games |
| Fornax 4.0 | 3/4 | +2 | 4 Games |
| Rengar 2.1.1 | 2/4 | +0 | 4 Games |
| Princhess 0.19.0 | 1/4 | -2 | 4 Games |
| Kobra 1.2 | 1/4 | -2 | 4 Games |
| Pirarucu 3.3.5 JA | 1/4 | -2 | 4 Games |
| Leorik 3.0 | 0.5/4 | -3 | 4 Games |
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