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Chess Engine Ranking CEDR for Stockfish and clones 01.04.2025

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During the month of March, our testers conducted tournaments with over 25,000 games played. Thanks to this, the CEDR ranking for April 1, 2025 was calculated based on over 625,000 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.


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

Chess Engines Diary Rating CEDR – 01.04.2025
generated with Ordo 0.9.9 (anchor Critter 1.6a with 3230)
All 625.428 games, Time:3’+3” Minimum 500 games
Pl Engine Rating Score Games (%)
1 Stockfish 20241208 3766.6 343.00 624 54.97

Stockfish 17 3756.9 6921.00 12796 54.09
2 Obsidian 15.04 SE 3737.0 597.50 1080 55.32
3 Alexandria 8.0.0 JA 3728.7 398.50 738 54.00
4 PlentyChess 4.0.1 3720.9 1069.50 2019 52.97
5 Dragon 3.3 3719.8 5285.00 10240 51.61
6 Integral 7.0.0 JA 3716.6 575.00 1032 55.72
7 Berserk 13 3710.9 4575.50 8171 56.00
8 Caissa 1.21.7 JA 3709.0 349.50 684 51.10
9 Lc0 0.31.0 3705.5 343.50 654 52.52
10 Horsie 1.0.6 JA 3696.4 886.00 1674 52.93
11 Lizard 11.2 3685.5 990.00 1924 51.46
12 Viridithas 16.0.0 3684.2 417.00 758 55.01
13 RubiChess 20240817 3682.6 2324.50 4500 51.66
14 Ethereal 14.25 3679.2 3642.50 6682 54.51
15 Motor 0.8.0 JA 3673.2 1381.00 2816 49.04
16 Clover 8.0.1 3671.0 701.00 1447 48.45
17 Booot 7.4 3666.6 593.00 1194 49.66
18 Stormphrax 6.0.0 3663.6 977.00 1979 49.37
19 Devre 6.39 JA 3661.6 629.00 1230 51.14
20 Seer 2.8.0 JA 3660.7 339.50 730 46.51
21 Rebel EAS 3652.9 730.00 1356 53.83
22 Chess-System-Tal-2 3646.3 3926.00 7591 51.72
23 Uralochka 3.42 dev7 3646.3 835.00 1677 49.79
24 Titan 1.1.0 3645.8 1670.50 3335 50.09
25 Revenge 4.0 3645.0 692.50 1456 47.56

Stockfish and derivatives:
Stockfish and derivatives Rating CEDR – 01.04.2025
generated with Ordo 0.9.9 (anchor Critter 1.6a with 3230)
All 625.428 games, Time:3’+3” Minimum 500 games
Pl Engine Rating Score Games (%)
1 Stockfish 20241208 3766.6 343.00 624 54.97
2 JigSaw 5.9 3765.0 1732.00 2824 61.33
3 SpecTral PB 071124 3763.0 921.00 1687 54.59
4 CorChess 20240927 3762.6 685.50 1200 57.13
5 Killfish 021224 3762.2 786.00 1483 53.00
6 SF-PRO2 04.12.2024 3762.0 341.00 555 61.44
7 Polyfish 221009 3761.9 315.00 520 60.58
8 Sailfish 4.0 3761.4 534.00 1001 53.35
9 BrainLearn 29 3761.3 625.00 1126 55.51
10 Dark SisTer 4 3761.2 304.00 503 60.44
11 Stockfish 20241122 Ivec 3761.2 346.50 592 58.53
12 HypnoS 160524 3761.0 514.50 936 54.97
13 Yuliana 5.50 3760.7 1852.00 3267 56.69
14 Tactical Titan 3760.0 1057.00 2010 52.59
15 ShashChess 37 3759.8 1788.00 3328 53.73
16 Kookaburra 3.10 3759.7 341.50 618 55.26
17 Rems Sep24 3759.5 541.00 917 59.00
18 Perelandra 2.0 3759.3 378.50 648 58.41
19 YuliGM 19 3759.3 1185.00 2158 54.91
20 Deep Blue 20240518 3759.2 1407.50 2689 52.34
21 Artemis 4TR 3758.9 994.00 1811 54.89
22 Marauders 3.9 3758.6 722.50 1282 56.36
23 Raid 3.6 TR 3758.5 4136.50 7711 53.64
24 TROY 042025 3758.4 773.50 1408 54.94
25 Contact 12 3758.3 489.50 832 58.83

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