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New Chess Engines Diary Ranking CEDR - 01.10.2025


Dear readers,

Here is a new CEDR chess engine ranking list. The Chess Engines Diary team has conducted extensive tests, evaluating over 760,000 games. Please note that this database has been "cleaned," and we have excluded games that lasted fewer than 10 moves from the list.


Here is a ranking list TOP 20 chess engines, complete ranking lists on our website: RATING

Chess Engines Diary Rating CEDR – 01.10.2025
generated with Ordo 0.9.9 (anchor Critter 1.6a with 3230)
All 760.349 games, Time:3’+3” Minimum 500 games
Pl Engine Rating Score Games (%)
1 Stockfish dev-20250906 3760.7 520.00 892 58.30
2 Obsidian 15.14 3738.8 314.50 554 56.77
3 Alexandria 8.1.2 3730.6 829.50 1382 60.02
4 PlentyChess 6.0.18 3730.4 872.50 1576 55.36
5 Reckless 0.8.0 3729.9 781.00 1209 64.60
6 Berserk 20250606 3721.9 586.50 1092 53.71
7 Integral 7.0.0 JA 3717.8 2189.00 4053 54.01
8 Dragon 3.3 3717.4 5811.00 11244 51.68
9 Caissa 1.22 3714.5 539.50 1042 51.78
10 Lc0 0.31.0 3703.0 343.50 654 52.52
11 RubiChess 20250520 3702.8 358.00 700 51.14
12 Viridithas 18.0.0 JA 3697.9 452.00 756 59.79
13 Stormphrax 7.0.0 JA 3693.5 637.50 1281 49.77
14 Horsie 1.0.6 JA 3691.5 1149.00 2203 52.16
15 Halogen 15.0.0 3685.9 624.50 1018 61.35
16 Motor 0.9.0 3682.3 1111.00 2254 49.29
17 Lizard 11.2 3680.8 1264.50 2468 51.24
18 Arasan 25.1 3680.0 256.50 544 47.15
19 Astra 6.1.1 3678.0 1161.50 2025 57.36
20 Starzix 6.1 JA 3677.6 620.50 1237 50.16







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