Chess engine: Alexandria
Author: PGG106 Rating CEDR=3347
v.4.0
What's Changed
TM is now more sophisticated and couples hard/soft bounds with a scaling based on nodes
Greatly improved search
Improved NNUE arch and data
NNUE changes
Alexandria's net arch changed from 768->512->1 to a relative 768->512x2->1, many thanks to cosmo for Pr #148, providing the current inference code for a relative net and the net that has been used to test alex patches up to #209.
The 200M fens of koivisto data that were previously used to train alex nets have been swapped out for 370M fens of leela data. Thanks to the koi boys for letting me use koi data for so long and to the leela team for making their data publicly available (and thank you linrock for the very cool binpack on kaggle).
Individual statistics: Alexandria 3.5 - 234 games (+ 91,= 89,- 54), 57.9 %
Andscacs 0.95092 : 2 (+ 0,= 1,- 1), 25.0 %
Laser 1.7 : 2 (+ 2,= 0,- 0), 100.0 %
Critter 1.6a : 14 (+ 8,= 6,- 0), 78.6 %
Fat Fritz (in lc0) : 1 (+ 1,= 0,- 0), 100.0 %
Monolith 2 : 2 (+ 2,= 0,- 0), 100.0 %
Komodo 13.02 : 2 (+ 1,= 1,- 0), 75.0 %
Zahak 10.0 : 2 (+ 2,= 0,- 0), 100.0 %
Gogobello 3.0 : 2 (+ 0,= 2,- 0), 50.0 %
Toga IV : 2 (+ 0,= 2,- 0), 50.0 %
Coiled 1.1 : 2 (+ 1,= 1,- 0), 75.0 %
Amoeba 3.4 : 2 (+ 2,= 0,- 0), 100.0 %
DanaSah 9.0 : 2 (+ 2,= 0,- 0), 100.0 %
Combusken 2.0.0 : 2 (+ 1,= 1,- 0), 75.0 %
MrBob 1.1.0 : 2 (+ 1,= 1,- 0), 75.0 %
Fisherov chess monk 1.2 : 2 (+ 0,= 1,- 1), 25.0 %
Defenchess 2.3 : 2 (+ 0,= 1,- 1), 25.0 %
GreKo 2021.08 NNUE : 2 (+ 1,= 1,- 0), 75.0 %
Tornado Dec 9 2020 : 2 (+ 1,= 0,- 1), 50.0 %
Nirvanachess 2.5 : 2 (+ 0,= 1,- 1), 25.0 %
Demolito 2021-10-21 : 2 (+ 1,= 1,- 0), 75.0 %
Beef 0.3.6 : 2 (+ 1,= 1,- 0), 75.0 %
Blunder 8.5.5 : 2 (+ 2,= 0,- 0), 100.0 %
Roc 2022Aug18 : 2 (+ 0,= 1,- 1), 25.0 %
Mantissa 3.7.2 : 2 (+ 0,= 2,- 0), 50.0 %
Devre 4.0 : 2 (+ 0,= 2,- 0), 50.0 %
Weiss 2.1 dev : 2 (+ 0,= 2,- 0), 50.0 %
Booot 7.0 : 4 (+ 0,= 1,- 3), 12.5 %
StockNemo 5.7.0.0 : 2 (+ 1,= 1,- 0), 75.0 %
Seer 2.6 : 2 (+ 0,= 1,- 1), 25.0 %
Stash 34.0 : 2 (+ 0,= 0,- 2), 0.0 %
Kayra 1.7 : 2 (+ 0,= 1,- 1), 25.0 %
Counter 5.0 : 2 (+ 0,= 2,- 0), 50.0 %
Kuma 1.0 : 2 (+ 1,= 1,- 0), 75.0 %
Little Goliath 3.16 : 4 (+ 1,= 2,- 1), 50.0 %
Dragon 3.2 : 2 (+ 0,= 1,- 1), 25.0 %
Charisma Diamond : 2 (+ 0,= 0,- 2), 0.0 %
Igel 3.3.0 : 2 (+ 0,= 2,- 0), 50.0 %
Frozenight 6.0.0 : 2 (+ 0,= 2,- 0), 50.0 %
Winter 2.0 : 4 (+ 2,= 2,- 0), 75.0 %
Eman 8.70 : 2 (+ 0,= 1,- 1), 25.0 %
RukChess 3.0.15 NNUE2 : 4 (+ 4,= 0,- 0), 100.0 %
Mess 0.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Koivisto 9.2 : 4 (+ 0,= 1,- 3), 12.5 %
Caissa 1.6 : 4 (+ 3,= 0,- 1), 75.0 %
Predator X5 : 2 (+ 0,= 0,- 2), 0.0 %
Svart 1.0.0 : 2 (+ 2,= 0,- 0), 100.0 %
Renegade 0.8.1 : 8 (+ 8,= 0,- 0), 100.0 %
Clover 3.3 : 3 (+ 0,= 2,- 1), 33.3 %
Velvet 5.1.0 : 10 (+ 4,= 4,- 2), 60.0 %
Fat Fritz 2 : 4 (+ 0,= 2,- 2), 25.0 %
4ku 2.0 : 4 (+ 3,= 1,- 0), 87.5 %
Camel 0.3.1 GS : 4 (+ 4,= 0,- 0), 100.0 %
Zagreus 2.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Patzer AI 020223 : 2 (+ 0,= 0,- 2), 0.0 %
Berserk 11 : 6 (+ 0,= 0,- 6), 0.0 %
Flounder 0.3.0.0 : 8 (+ 2,= 6,- 0), 62.5 %
Booot 6.1 : 6 (+ 4,= 2,- 0), 83.3 %
Clover 3.3.1 : 8 (+ 1,= 3,- 4), 31.2 %
Caissa 1.6.3 : 10 (+ 1,= 9,- 0), 55.0 %
Bagatur 3.7a : 6 (+ 4,= 2,- 0), 83.3 %
Rebel 16.2 : 6 (+ 1,= 1,- 4), 25.0 %
Stockfish 20230218 : 4 (+ 0,= 2,- 2), 25.0 %
Cfish 190223 : 2 (+ 0,= 1,- 1), 25.0 %
CorChess 20230219 : 2 (+ 0,= 1,- 1), 25.0 %
SimpleChess 1.3 : 4 (+ 4,= 0,- 0), 100.0 %
Peacekeeper 1.2 : 2 (+ 2,= 0,- 0), 100.0 %
Berserk 11.1 : 2 (+ 0,= 0,- 2), 0.0 %
BlackCore 6.0 : 4 (+ 1,= 3,- 0), 62.5 %
Clovis III : 2 (+ 2,= 0,- 0), 100.0 %
Flounder 0.4.0.0 : 2 (+ 1,= 1,- 0), 75.0 %
Eman 8.90 : 2 (+ 0,= 0,- 2), 0.0 %
Arasan 23.5 : 2 (+ 0,= 1,- 1), 25.0 %
Knightx 3.7b : 2 (+ 2,= 0,- 0), 100.0 %
Tenax 0.7.7 : 2 (+ 0,= 2,- 0), 50.0 %
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