Obsidian 15.14 JA - new version strong chess engine
Obsidian is a powerful chess engine, in the CEDR ranking it is second behind Stockfish - 3737!
The new version 15.12 SE will be tested by our testers today.
Obsidian, an UCI chess engine written in c++
Rating Chess Engines Diary CEDR=3737
v.15.03:
New net
Elo | 3.58 +- 2.42 (95%)
SPRT | 10.0+0.10s Threads=1 Hash=16MB
LLR | 2.05 (-2.25, 2.89) [0.00, 2.00]
Games | N: 20408 W: 4967 L: 4757 D: 10684
Penta | [59, 2284, 5304, 2502, 55]
Bench 3255732
Obsidian 15.09 SE vs - other engines:
| Caissa 1.21.7 JA | 6/12 | +0 | 12 Games |
| Sting Black Hole 10 | 10/10 | +10 | 10 Games |
| CorChess 20250322 | 5.5/10 | +1 | 10 Games |
| SF-PRO 19.03.2025 | 5/10 | +0 | 10 Games |
| Berserk 20250307b | 4.5/8 | +1 | 8 Games |
| Stockfish 17 | 4/8 | +0 | 8 Games |
| Contact 12 L | 4/8 | +0 | 8 Games |
| Yuliirma 5.0 | 4/8 | +0 | 8 Games |
| DarkSeid 5.6 | 3.5/8 | -1 | 8 Games |
| Stockfish 20250321 Ivec | 3/6 | +0 | 6 Games |
| JudaS ++ 1.02 | 3/6 | +0 | 6 Games |
| Yuliana 7.0 | 3/6 | +0 | 6 Games |
| YuliGM 19 | 3/6 | +0 | 6 Games |
| HypnoS ++ 1.02 | 3/6 | +0 | 6 Games |
| Artemis 10TR | 2.5/6 | -1 | 6 Games |
| Cool Iris 14 | 2.5/6 | -1 | 6 Games |
| Cadabra 2.1.0 JA | 4/4 | +4 | 4 Games |
| Euwe 2.1.0 JA | 4/4 | +4 | 4 Games |
| Prelude Fusion 2.0 | 4/4 | +4 | 4 Games |
| Starzix 6.0 | 3/4 | +2 | 4 Games |
| Horsie 1.0.6 JA | 3/4 | +2 | 4 Games |
Neural network
Obsidian evaluates positions with a neural network trained on Lc0 data.
Jim Ablett compiles:
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