Obsidian is a powerful chess engine, in the CEDR ranking it is second behind Stockfish - 3740!
The new version 15.03 SE will be tested by our testers today.
Obsidian, an UCI chess engine written in c++
Rating Chess Engines Diary CEDR=3740
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 14.14 SE vs - other engines:
| Integral v6 | 18/30 | +6 | 30 Games |
| PlentyChess 3.0.1 | 17/30 | +4 | 30 Games |
| RubiChess 20240817 | 17/30 | +4 | 30 Games |
| Berserk 20241119 | 15/30 | +0 | 30 Games |
| Caissa 1.21 | 14.5/30 | -1 | 30 Games |
| Alexandria 7.1.0 | 14/30 | -2 | 30 Games |
Neural network
Obsidian evaluates positions with a neural network trained on Lc0 data.
Jim Ablett compiles:
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