Hobbes 2.1 wins Arena New Engines Test - 03.06.2026

Hobbes 2.1 emerged victorious in the new chess engine tournament, where the Critter engine served as the benchmark to filter qualifiers for our Chess Engine League. Raphael 4.1.1 JA and PZChessbot 7.0 JA secured second and third places, respectively.

CEDR 885.750 games download (01.06.2026)

💾 Tournament download with 276 games
💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Arena
#chessenginesdiary Country - Poland, City - Malbork  🕓 Time 3'+3"

Ran	Engine	Author	CEDR	Score	%	S-B
01	Hobbes 2.1	Dan Kelsey	2400	21.0/23	91.3	216,50
02	Raphael 4.1.1 JA	Rei Meguro	2400	21.0/23	91.3	216,00
03	PZChessbot 7.0 JA	Kevlu & Wdotmathree	3560	20.0/23	86.9	200,25
04	Icarus 1.0 JA	Sp00ph	2400	19.0/23	82.6	181,50
05	Triumviratus 3.3	Francesco Torsello	2400	18.0/23	78.2	166,75
06	Bread 3.1.0	Nonlinear	2400	18.0/23	78.2	163,50
07	Gargantua 2.1	Claudio M. Camacho	3126	18.0/23	78.2	163,00
08	Clockwork dev-20260530	Clockwork community	2400	17.5/23	76.0	153,75
09	Catalyst 3.0.0 JA	Anany Tanwar	2400	14.5/23	63.0	108,25
10	GOOB 2.0 JA	Gabriel Montes	3084	14.5/23	63.0	108,00
11	Critter 1.6a	Richard Vida	3230	14.5/23	63.0	106,50
12	Revolver 2.0 JA	Deshawn Mohan	2400	12.5/23	54.3	80,75
13	Prophet 5.2.1 JA	James Swafford	2370	9.5/23	41.3	46,75
14	Ratsu 2.0.0	Eetu Rantala	2400	9.5/23	41.3	45,75
15	Basilisk 1.2.2	Miloslav Macurek	2400	9.0/23	39.1	48,75
16	Aurora 1.27.0	Kjljixx	2370	8.5/23	36.9	35,75
17	Facon 1.5	Carlos M. Canavessi	2400	8.0/23	34.7	32,50
18	Dual 0.2.9	Tomasz Stawowy	2400	5.0/23	21.7	18,75
19	Rudim 2.1.3	Vishnu B	2400	5.0/23	21.7	16,00
20	Eleanor 4.1 JA	Rektdie	2400	4.0/23	17.3	20,50
21	CapiZero 2.8.0 JA	Hugo Souza	2400	3.5/23	15.2	8,75
22	Hydra 1.1.1	Miloslav Macurek	2400	3.0/23	13.0	6,50
23	Ember 0.9.1	Rust	2400	1.5/23	6.5	2,75
24	Hynobius 0.3.0 beta3	EmmetThor	2400	1.0/23	4.3	4,00