New Chess Engine Ranking CEDR for Stockfish and clones 01.03.2025

In February 2025, our testers organized chess engine tournaments in which 22,924 games were played. Thanks to this, the ranking is calculated based on 599,651 games!

The list only includes chess engines that have played at least 500 games in our tests.
The game database has been "cleaned" of games that had less than 10 moves.

All 599,651 games download

Here is a ranking list TOP 25 chess engines, complete ranking lists on our website: RATING

Chess Engines Diary Rating CEDR – 01.03.2025
generated with Ordo 0.9.9 (anchor Critter 1.6a with 3230)
All 599.651 games, Time:3’+3” Minimum 500 games
Pl	Engine	Rating	Score	Games	(%)
1	Stockfish 20241208	3768.6	343	624	54.97
	Stockfish 17	3759.1	6143	11308	54.32
2	Obsidian 14.05 SE	3729.5	589	1074	54.84
3	PlentyChess 4.0.1	3723.5	816	1549	52.68
4	Dragon 3.3	3721.2	5239	10160	51.57
5	Integral 7.0.0	3715.9	369	654	56.42
6	Berserk 20250203	3713.2	389.5	685	56.86
7	Alexandria 7.1.0	3710.6	2016	3794	53.14
8	Caissa 1.21	3706.3	2533.5	4766	53.16
9	Lc0 0.31.0	3705.6	343.5	654	52.52
10	Horsie 1.0.6 JA	3701.5	570.5	1038	54.96
11	Viridithas 16.0.0	3685.0	306	540	56.67
12	RubiChess 20240817	3684.0	2307	4470	51.61
13	Ethereal 14.25	3680.3	3642.5	6682	54.51
14	Motor 0.8.0 JA	3675.3	1128	2278	49.52
15	Clover 8.0.1	3672.3	701	1447	48.45
16	Stormphrax 6.0.0	3664.6	947.5	1919	49.37
17	Devre 6.39 JA	3664.5	603.5	1170	51.58
18	Rebel EAS	3653.6	730	1356	53.83
19	Uralochka 3.42 dev7	3647.9	808	1617	49.97
20	Chess-System-Tal-2	3647.2	3898	7531	51.76
21	Titan 1.1.0	3646.4	1641.5	3275	50.12
22	Revenge 4.0	3646.2	480	971	49.43
23	Seer 2.8.0	3643.0	1920	3646	52.66
24	Arasan 25.0	3642.9	530	970	54.64
25	Akimbo 1.1.0 JA	3633.0	392	735	53.33