Chess engine: Eubos 3.9 JA

- February 20, 2025

Eubos - a basic Java chess engine, written for kicks. Uses jcpi for the UCI protocol parts. Kind of weak, doesn't evaluate for king safety, for example. Now uses transpostion hashing, but because it runs in the Java VM on a bog standard PC, doesn't search very deeply (around 100K Nodes/s, though this is actually quite hard to evaluate due to the hashing).

Author: Chris Bolt Rating CEDR=2493

v.3.9 Jim Ablett:

Eubos 3.9 Dev 64 JA

Standalone Windows executable

Eubos 3.5 - results:

Rodent NN JA	0/6	-6	6 Games
Akira CE 1.1.1	4/4	+4	4 Games
Alouette 0.1.7	4/4	+4	4 Games
Sloth 1.8	3/4	+2	4 Games
Oxidation 0.7.0	2.5/4	+1	4 Games
OpenTal 1.1 JA	2/4	+0	4 Games
Mayhem 8.2	1.5/4	-1	4 Games
Tcheran 2.3	1.5/4	-1	4 Games
Pirarucu 3.3.5 JA	0.5/4	-3	4 Games
Toga IV 1.1 JA	0/4	-4	4 Games
Tucano 11.19 JA	0/4	-4	4 Games
Fatalii 0.7.0	0/4	-4	4 Games
Critter 1.6a	0/4	-4	4 Games
Winter 3.10a JA	0/4	-4	4 Games
Piglet 1.3.6	2/2	+2	2 Games
Chessrikus 1.466 JA	2/2	+2	2 Games
GitChess 1.0	2/2	+2	2 Games
Throttle 3.0	1.5/2	+1	2 Games
Arcanum 2.1	1/2	+0	2 Games
Jackychess 24.04	1/2	+0	2 Games
Yakka 1.0	1/2	+0	2 Games