Obsidian 15.20 - new version strong chess engine


Obsidian is a powerful chess engine, in the CEDR ranking it is second behind Stockfish - 3732!
The new version 15.20 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 JA11.5/16+716 Games
Superultra 2.1 JA8.5/12+512 Games
Viridithas 17.0.07/12+212 Games
Caissa 1.21.7 JA6/12+012 Games
Booot 7.47/10+410 Games
Horsie 1.0.6 JA5.5/10+110 Games
PlentyChess 5.0.05.5/10+110 Games
Integral 7.0.0 JA5.5/10+110 Games
Motor 0.8.0 JA5.5/10+110 Games
Alexandria 8.0.0 JA5/10+010 Games
Cool Iris v165/10+010 Games
Berserk 20250307b JA5/10+010 Games
Pawnocchio 1.56/6+66 Games
Demolito 2025-04-086/6+66 Games
Wasp 7.075/6+46 Games
Artemis 13TR3/6+06 Games
Stockfish 17.13/6+06 Games
Aku Chess Engine 4.7.04/4+44 Games
Critter 1.6a3.5/4+34 Games
Pawn 3.0 JA2.5/4+14 Games
Stockfish dev-202504022/4+04 Games


Neural network
Obsidian evaluates positions with a neural network trained on Lc0 data.



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