Obsidian, an UCI chess engine written in c++
Rating CEDR=3660
Obsidian 11 - results:
| RubiChess 20240112 | 17/34 | +0 | 34 Games |
| Black Marlin 9.0 | 22.5/33 | +12 | 33 Games |
| Viridithas 12.0.0 | 21.5/33 | +10 | 33 Games |
| Rebel 16.3 | 16.5/31 | +2 | 31 Games |
| Seer 2.8.0 | 15.5/30 | +1 | 30 Games |
| Caissa 1.17 | 14.5/30 | -1 | 30 Games |
| Ethereal 14.25 | 13.5/30 | -3 | 30 Games |
| Velvet 7.0.0 | 15.5/24 | +7 | 24 Games |
| Chess-System-Tal-2 | 11.5/22 | +1 | 22 Games |
| RofChade 3.1 | 11.5/20 | +3 | 20 Games |
| Uralochka 3.41 dev3 | 11/20 | +2 | 20 Games |
| Clover 6.1 | 11/20 | +2 | 20 Games |
| Clover 6.1.19 | 10/19 | +1 | 19 Games |
| Equisetum 1.0 | 13/18 | +8 | 18 Games |
| Lizard 10.3 | 9/17 | +1 | 17 Games |
| Berserk 12.1 | 7.5/16 | -1 | 16 Games |
| Stockfish 16.1 | 6/16 | -4 | 16 Games |
| Velvet 7.1.0 | 10.5/15 | +6 | 15 Games |
| Fire 9.3 | 9.5/15 | +4 | 15 Games |
| Igel 3.5.5 | 8.5/13 | +4 | 13 Games |
| Berserk 20240311 | 5.5/12 | -1 | 12 Games |
v.12.0:
The Elo gain of this update comes mostly from improvements of the neural network, however there were a few search tweaks too.
Due to the new type of neural network, v12.0 doesn't use anymore extra 150 MB of memory.
Lastly, I fixed some bugs here and there.
Obsidian 12.0 vs Obsidian 11.0 (STC)
Elo | 56.70 +- 5.42 (95%)
Conf | 10.0+0.10s Threads=1 Hash=16MB
Games | N: 8006 W: 2672 L: 1377 D: 3957
Penta | [9, 525, 1767, 1566, 136]
This new release is about on par with Berserk 12 (slightly stronger or slightly weaker depending on the time control).
The goal for the next release is to take down Dragon 3.3
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