Obsidian is a powerful chess engine, in the CEDR ranking it is second behind Stockfish - 3732!
The new version 15.22 will be tested by our testers today. Keep an eye on our website, results coming soon.
Obsidian, an UCI chess engine written in c++
Rating Chess Engines Diary CEDR=3732
Obsidian 15.14 vs - other engines:
| Clarity 8.0.0 JA | 11.5/16 | +7 | 16 Games |
| Superultra 2.1 JA | 8.5/12 | +5 | 12 Games |
| Viridithas 17.0.0 | 7/12 | +2 | 12 Games |
| Caissa 1.21.7 JA | 6/12 | +0 | 12 Games |
| Booot 7.4 | 7/10 | +4 | 10 Games |
| Horsie 1.0.6 JA | 5.5/10 | +1 | 10 Games |
| PlentyChess 5.0.0 | 5.5/10 | +1 | 10 Games |
| Integral 7.0.0 JA | 5.5/10 | +1 | 10 Games |
| Motor 0.8.0 JA | 5.5/10 | +1 | 10 Games |
| Alexandria 8.0.0 JA | 5/10 | +0 | 10 Games |
| Cool Iris v16 | 5/10 | +0 | 10 Games |
| Berserk 20250307b JA | 5/10 | +0 | 10 Games |
| Pawnocchio 1.5 | 6/6 | +6 | 6 Games |
| Demolito 2025-04-08 | 6/6 | +6 | 6 Games |
| Wasp 7.07 | 5/6 | +4 | 6 Games |
| Artemis 13TR | 3/6 | +0 | 6 Games |
| Stockfish 17.1 | 3/6 | +0 | 6 Games |
| Aku Chess Engine 4.7.0 | 4/4 | +4 | 4 Games |
| Critter 1.6a | 3.5/4 | +3 | 4 Games |
| Pawn 3.0 JA | 2.5/4 | +1 | 4 Games |
| Stockfish dev-20250402 | 2/4 | +0 | 4 Games |
Neural network
Obsidian evaluates positions with a neural network trained on Lc0 data.
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