Caissa - UCI chess engine, Author: Michał Witanowski
Rating CEDR=3431
v.1.7:
Changes:
Increase neural net accumulator size from 1024 to 1536
New neural network trained on 750M positions
Refactor move generation
Refactor counter move history
Skipping quiet moves generation when late move prunning triggers
Tweaking Late Move Reductions
Tweaking Singular Extensions
Introduce Counter Moves
Staged generation of Killer and Counter Moves
Fix bug in Static Exchange Evaluation
Store only 1 move in Transposition Table entry (instead of 3)
Optimize neural net's last layer evaluation
Don't report PV lines in first 5ms of search
Prune only really bad captures in QSearch
Adding some KQvKRP endgame knowledge
Introduced 'hashfull' UCI reporting
Tweaking various parameters
Individual statistics: Caissa 1.6.3 - 213 games (+ 66,= 86,- 61), 51.2 %
Schooner 2.2 : 2 (+ 2,= 0,- 0), 100.0 %
Critter 1.6a : 6 (+ 4,= 2,- 0), 83.3 %
Xiphos 0.6.1 : 2 (+ 1,= 1,- 0), 75.0 %
Zahak 10.0 : 2 (+ 1,= 0,- 1), 50.0 %
Hiarcs 15.5 : 2 (+ 1,= 0,- 1), 50.0 %
Tucano 10.00 : 2 (+ 0,= 1,- 1), 25.0 %
RofChade 3.0 : 4 (+ 0,= 2,- 2), 25.0 %
Pedone 3.1 : 2 (+ 1,= 1,- 0), 75.0 %
Fisherov chess monk 1.2 : 2 (+ 0,= 1,- 1), 25.0 %
Nemorino 6.00 : 2 (+ 0,= 2,- 0), 50.0 %
Blunder 8.5.5 : 2 (+ 2,= 0,- 0), 100.0 %
Fritz 18 : 2 (+ 0,= 2,- 0), 50.0 %
Arasan 23.4 : 2 (+ 0,= 2,- 0), 50.0 %
Revenge 3.0 : 4 (+ 0,= 2,- 2), 25.0 %
Weiss 2.1 dev : 2 (+ 1,= 1,- 0), 75.0 %
Booot 7.0 : 4 (+ 3,= 0,- 1), 75.0 %
Marvin 6.1.0 : 2 (+ 1,= 1,- 0), 75.0 %
Fire NN 1072022 : 2 (+ 0,= 2,- 0), 50.0 %
Seer 2.6 : 4 (+ 0,= 1,- 3), 12.5 %
Kayra 1.7 : 2 (+ 0,= 0,- 2), 0.0 %
Kuma 1.0 : 2 (+ 2,= 0,- 0), 100.0 %
RubiChess 20221203 : 4 (+ 0,= 2,- 2), 25.0 %
Kookaburra 1.03a : 2 (+ 0,= 1,- 1), 25.0 %
Little Goliath 3.16 : 2 (+ 1,= 1,- 0), 75.0 %
Dragon 3.2 : 2 (+ 0,= 0,- 2), 0.0 %
Minic 3.33 : 2 (+ 0,= 2,- 0), 50.0 %
Uralochka 3.39d : 4 (+ 1,= 3,- 0), 62.5 %
Blue Marlin 15.6 : 2 (+ 0,= 1,- 1), 25.0 %
BrainLearn 21.1 : 2 (+ 0,= 1,- 1), 25.0 %
Viridithas 7.0.0 : 4 (+ 1,= 3,- 0), 62.5 %
Winter 2.0 : 2 (+ 2,= 0,- 0), 100.0 %
Eman 8.70 : 4 (+ 0,= 2,- 2), 25.0 %
Igel 3.4.0 : 6 (+ 0,= 4,- 2), 33.3 %
Polyfish 230202 : 2 (+ 0,= 0,- 2), 0.0 %
ShashChess 28 : 2 (+ 0,= 1,- 1), 25.0 %
Mess 0.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Koivisto 9.2 hotfix : 4 (+ 0,= 3,- 1), 37.5 %
CorChess 20230210 : 2 (+ 0,= 1,- 1), 25.0 %
Predator X5 : 2 (+ 0,= 0,- 2), 0.0 %
Svart 1.0.0 : 1 (+ 1,= 0,- 0), 100.0 %
Alexandria 3.5 : 8 (+ 0,= 7,- 1), 43.8 %
Renegade 0.8.1 : 4 (+ 4,= 0,- 0), 100.0 %
Velvet 5.1.0 : 10 (+ 3,= 4,- 3), 50.0 %
Fat Fritz 2 : 4 (+ 0,= 1,- 3), 12.5 %
4ku 2.0 : 2 (+ 2,= 0,- 0), 100.0 %
Camel 0.3.1 GS : 4 (+ 4,= 0,- 0), 100.0 %
Zagreus 2.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
RukChess 3.0.15 : 2 (+ 2,= 0,- 0), 100.0 %
Patzer AI 020223 : 2 (+ 0,= 0,- 2), 0.0 %
Berserk 11 : 8 (+ 0,= 3,- 5), 18.8 %
Flounder 0.3.0.0 : 6 (+ 6,= 0,- 0), 100.0 %
Booot 6.1 : 6 (+ 5,= 1,- 0), 91.7 %
Clover 3.3.1 : 12 (+ 2,= 7,- 3), 45.8 %
Bagatur 3.7a : 4 (+ 4,= 0,- 0), 100.0 %
Rebel 16.2 : 8 (+ 1,= 5,- 2), 43.8 %
Stockfish 20230218 : 6 (+ 0,= 1,- 5), 8.3 %
Cfish 190223 : 2 (+ 0,= 0,- 2), 0.0 %
CorChess 20230219 : 2 (+ 0,= 2,- 0), 50.0 %
SimpleChess 1.3 : 2 (+ 2,= 0,- 0), 100.0 %
RapShortCs 2023-02-21 : 2 (+ 2,= 0,- 0), 100.0 %
Berserk 11.1 : 2 (+ 0,= 2,- 0), 50.0 %
Koivisto 9.2 : 4 (+ 0,= 3,- 1), 37.5 %
Charisma Blitz : 2 (+ 0,= 1,- 1), 25.0 %
Ethereal 14.00 NNUE : 4 (+ 0,= 3,- 1), 37.5 %
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