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Chess engine: Caissa 1.10

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Caissa - UCI chess engine,  Author: Michał Witanowski
Rating CEDR=3510

v.1.10:
This release introduces new neural network architecture. The accumulator is split into whites and blacks perspective. Trained on 1.9B positions. The biggest gains are visible in DFRC. Accumulator size is now 1024 neurons, so the net file is even smaller than in previous release (1536).
Also includes a small fix in search (not updating best move if searched move doesn't beat alpha), worth around 15 Elo.

Elo gain
Book=UHO_XXL_2022_+100_+129.epd, TC=40+0.04

Score of Caissa 1.10 AVX2 vs Caissa 1.9 (AVX2/BMI2): 173 - 102 - 391  [0.553] 666
Elo difference: 37.2 +/- 16.9, LOS: 100.0 %, DrawRatio: 58.7 %
Book=UHO_MEGA_2022_+110_+149.pgn, TC=8+0.08

Score of Caissa 1.10 AVX2 vs Caissa 1.9 (AVX2/BMI2): 267 - 157 - 390  [0.568] 814
Elo difference: 47.2 +/- 17.2, LOS: 100.0 %, DrawRatio: 47.9 %
Book=chess960_3moves.pgn, TC=8+0.08

Score of Caissa 1.10 AVX2 vs Caissa 1.9 (AVX2/BMI2): 76 - 33 - 158  [0.581] 267
Elo difference: 56.4 +/- 26.5, LOS: 100.0 %, DrawRatio: 59.2 %
Book=DFRC.pgn, TC=8+0.08

Score of Caissa 1.10 AVX2 vs Caissa 1.9 (AVX2/BMI2): 216 - 98 - 306  [0.595] 620
Elo difference: 66.9 +/- 19.5, LOS: 100.0 %, DrawRatio: 49.4 %
Book=DFRC.pgn, TC=1+0.01

Score of Caissa 1.10 AVX2 vs Caissa 1.9 (AVX2/BMI2): 228 - 71 - 181  [0.664] 480
Elo difference: 118.0 +/- 25.0, LOS: 100.0 %, DrawRatio: 37.7 %

Individual statistics: Caissa 1.8 - 902 games (+308,=396,-198), 56.1   %
Critter 1.6a                  :  14 (+ 10,=  4,-  0), 85.7 %
Hiarcs 15.5                   :   2 (+  1,=  1,-  0), 75.0 %
Hopper 1.7                    :   2 (+  2,=  0,-  0), 100.0 %
Slowchess 2.9                 :   8 (+  0,=  7,-  1), 43.8 %
Journeyman 2.1                :   2 (+  2,=  0,-  0), 100.0 %
Fisherov chess monk 1.2       :  24 (+  0,= 14,- 10), 29.2 %
Revenge 3.0                   :  10 (+  0,=  8,-  2), 40.0 %
Seer 2.6                      :  14 (+  0,= 11,-  3), 39.3 %
Stockfish 14.1                :   2 (+  0,=  1,-  1), 25.0 %
CDrill 2000                   :   2 (+  2,=  0,-  0), 100.0 %
Fornax 4.0                    :   2 (+  2,=  0,-  0), 100.0 %
Crystal 5 KWK                 :   4 (+  0,=  2,-  2), 25.0 %
Kayra 1.7                     :   8 (+  0,=  3,-  5), 18.8 %
MadChess 3.2 beta             :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 15.1                :  22 (+  0,= 14,-  8), 31.8 %
Axon 0.2                      :   1 (+  1,=  0,-  0), 100.0 %
Dragon 3.2                    :  10 (+  1,=  6,-  3), 40.0 %
Charisma Diamond              :   2 (+  0,=  2,-  0), 50.0 %
Minic 3.33                    :  12 (+  2,=  8,-  2), 50.0 %
Uralochka 3.39d               :  12 (+  1,=  9,-  2), 45.8 %
Protej 0.6.4                  :   2 (+  2,=  0,-  0), 100.0 %
Igel 3.4.0                    :  18 (+  0,= 15,-  3), 41.7 %
Koivisto 9.2                  :  18 (+  0,= 13,-  5), 36.1 %
Velvet 5.1.0                  :   2 (+  1,=  1,-  0), 75.0 %
Rebel 16.2                    :  26 (+  2,= 22,-  2), 50.0 %
Berserk 11.1                  :  20 (+  0,= 13,-  7), 32.5 %
Ethereal 14.00 NNUE           :  12 (+  0,=  6,-  6), 25.0 %
BlackCore 6.0                 :  12 (+  7,=  5,-  0), 79.2 %
Booot 7.1                     :  14 (+  3,= 11,-  0), 60.7 %
YuliGM PrO 5.0                :   4 (+  0,=  2,-  2), 25.0 %
Wasp 6.50                     :  10 (+  3,=  6,-  1), 60.0 %
Clovis III                    :   6 (+  5,=  1,-  0), 91.7 %
Yuliirma 1.0                  :   2 (+  0,=  1,-  1), 25.0 %
Captain 4.0                   :   4 (+  4,=  0,-  0), 100.0 %
Pawn 1.0                      :   4 (+  3,=  1,-  0), 87.5 %
Komodo 14.1                   :   4 (+  2,=  2,-  0), 75.0 %
Blue Marlin 15.7              :   8 (+  0,=  1,-  7),  6.2 %
Viridithas 8.1.0              :   4 (+  3,=  1,-  0), 87.5 %
Eman 8.90                     :  12 (+  0,=  6,-  6), 25.0 %
Deep Blue 230329              :   2 (+  0,=  0,-  2),  0.0 %
Arasan 23.5                   :  18 (+  3,= 14,-  1), 55.6 %
Knightx 3.7b                  :   6 (+  6,=  0,-  0), 100.0 %
Altair 2.0.0                  :   4 (+  4,=  0,-  0), 100.0 %
BrainLearn 23.1               :   2 (+  0,=  0,-  2),  0.0 %
Jangine 2023-03-31            :   6 (+  6,=  0,-  0), 100.0 %
MrBob 1.2.0                   :   6 (+  4,=  2,-  0), 83.3 %
RubiChess 20230410            :   2 (+  0,=  2,-  0), 50.0 %
AI 28.0                       :   8 (+  0,=  4,-  4), 25.0 %
ShashChess 31.1               :   2 (+  0,=  1,-  1), 25.0 %
Akimbo 0.2.0                  :   2 (+  2,=  0,-  0), 100.0 %
Clover 4.0                    :  12 (+  2,=  8,-  2), 50.0 %
SFT-PB                        :   2 (+  0,=  1,-  1), 25.0 %
Tenax 0.7.9                   :  16 (+  8,=  7,-  1), 71.9 %
CorChess 20230423             :   2 (+  0,=  1,-  1), 25.0 %
Zangdar 2.15.03               :   6 (+  6,=  0,-  0), 100.0 %
Polaris 1.5.0                 :   6 (+  6,=  0,-  0), 100.0 %
Svart 4                       :   4 (+  4,=  0,-  0), 100.0 %
SF PB 220423                  :   4 (+  0,=  2,-  2), 25.0 %
RubiChess 20230407            :  18 (+  0,=  9,-  9), 25.0 %
DarkSisTer 5.0                :   2 (+  0,=  0,-  2),  0.0 %
Polyfish 20230426             :   2 (+  0,=  1,-  1), 25.0 %
SFT 26.04.2023                :  18 (+  0,= 13,-  5), 36.1 %
Mess 0.2.0                    :   6 (+  6,=  0,-  0), 100.0 %
Apotheosis 3.0.0              :   4 (+  4,=  0,-  0), 100.0 %
Queen 4.05                    :   6 (+  6,=  0,-  0), 100.0 %
Rice 5.0.0                    :   8 (+  6,=  2,-  0), 87.5 %
CatroPOLY 1.7 20230505        :  10 (+  0,=  6,-  4), 30.0 %
CorChess dev-20230504         :  16 (+  0,=  6,- 10), 18.8 %
KnightX 3.7b                  :   4 (+  4,=  0,-  0), 100.0 %
Polyfish 230426               :  16 (+  0,=  8,-  8), 25.0 %
Stockfish dev-20230503 Ivec   :  10 (+  0,=  3,-  7), 15.0 %
Stockfish dev-20230503        :   8 (+  0,=  5,-  3), 31.2 %
Polaris 1.6.1                 :   4 (+  3,=  1,-  0), 87.5 %
Bagatur 3.7c                  :   8 (+  8,=  0,-  0), 100.0 %
Viridithas 9.0.0              :  14 (+  2,= 12,-  0), 57.1 %
Vengeance 2.0.0               :   6 (+  5,=  1,-  0), 91.7 %
Midnight 6                    :  12 (+ 11,=  1,-  0), 95.8 %
CatroPOLY 1.8 20230506        :   6 (+  0,=  2,-  4), 16.7 %
Vafra 12.4 Cfish              :   4 (+  0,=  2,-  2), 25.0 %
SFT-BIN-CTG 07.05.2023        :   4 (+  0,=  2,-  2), 25.0 %
Polyfish 230509               :   2 (+  0,=  1,-  1), 25.0 %
ShashChess GZ                 :  16 (+  0,=  6,- 10), 18.8 %
4ku 3.0                       :  10 (+ 10,=  0,-  0), 100.0 %
Ice4 v3                       :   8 (+  8,=  0,-  0), 100.0 %
Kuma 1.1                      :  10 (+  9,=  1,-  0), 95.0 %
Apotheosis 4.0.1              :  10 (+  9,=  1,-  0), 95.0 %
Fire 5032023                  :   4 (+  2,=  2,-  0), 75.0 %
Eubos 2.20                    :   2 (+  2,=  0,-  0), 100.0 %
Ippolit 051323                :   6 (+  5,=  1,-  0), 91.7 %
Velvet 5.2.0                  :   8 (+  2,=  5,-  1), 56.2 %
Willow 2.8                    :   4 (+  3,=  1,-  0), 87.5 %
TheBaron 3.45                 :   4 (+  4,=  0,-  0), 100.0 %
Clover 4.1                    :  10 (+  0,=  7,-  3), 35.0 %
Fire 5192023                  :   6 (+  3,=  2,-  1), 66.7 %
Princhess 0.11.0              :   2 (+  2,=  0,-  0), 100.0 %
StoneChess 2023-05-20         :   2 (+  2,=  0,-  0), 100.0 %
Axon 0.3                      :   2 (+  2,=  0,-  0), 100.0 %
Drofa 4.0.0                   :   2 (+  2,=  0,-  0), 100.0 %
NIppolit                      :   8 (+  8,=  0,-  0), 100.0 %
Fire 4292023                  :   8 (+  5,=  2,-  1), 75.0 %
SugaR AI SE                   :   2 (+  2,=  0,-  0), 100.0 %
SugaR AI ICCF SE              :   5 (+  1,=  4,-  0), 60.0 %
Flounder 0.5.0.0              :  14 (+ 11,=  3,-  0), 89.3 %
Roc 2.0.0                     :  14 (+ 10,=  3,-  1), 82.1 %
Fire NN 5162023               :   2 (+  0,=  2,-  0), 50.0 %
ShashChess 32                 :   2 (+  0,=  0,-  2),  0.0 %
Brainlearn 24                 :   2 (+  0,=  1,-  1), 25.0 %
Crystal 6 PMT                 :   4 (+  0,=  2,-  2), 25.0 %
Fire Zero 5192023             :   4 (+  2,=  2,-  0), 75.0 %
Stockfish dev-20230520        :   2 (+  0,=  1,-  1), 25.0 %
Stockfish dev-20230520 Ivec   :   2 (+  0,=  1,-  1), 25.0 %
CorChess dev-20230521         :   2 (+  0,=  1,-  1), 25.0 %
Brainlearn 23.1               :   6 (+  0,=  5,-  1), 41.7 %
CorChess dev-20230423         :   4 (+  0,=  2,-  2), 25.0 %
Dark SisTer 5.0               :   6 (+  0,=  3,-  3), 25.0 %
Little Beast sl               :   2 (+  0,=  1,-  1), 25.0 %
Stockfish dev-20230425        :   2 (+  0,=  0,-  2),  0.0 %
SFT-BIN-CTG                   :   6 (+  0,=  4,-  2), 33.3 %
Stockfish dev-20230505        :   4 (+  0,=  2,-  2), 25.0 %
Little Beast 2 sl             :  10 (+  0,=  4,-  6), 20.0 %
Drofa 3.3.27                  :   4 (+  3,=  1,-  0), 87.5 %
Peacekeeper 1.4               :   2 (+  2,=  0,-  0), 100.0 %
Polaris 1.6.0                 :  12 (+ 11,=  1,-  0), 95.8 %
Dark SisTer 4.6               :   2 (+  0,=  2,-  0), 50.0 %
ChessKISS 1.8d                :   4 (+  4,=  0,-  0), 100.0 %
Svart 4.0.0                   :   4 (+  4,=  0,-  0), 100.0 %
Peacekeeper 1.40              :   4 (+  4,=  0,-  0), 100.0 %
nIPPOLIT                      :   8 (+  7,=  1,-  0), 93.8 %
Stockfish 20230422 Ivec       :   2 (+  0,=  2,-  0), 50.0 %
Stockfish 2030422             :   2 (+  0,=  2,-  0), 50.0 %
SF-PB 220423                  :   2 (+  0,=  2,-  0), 50.0 %
Corchess 20230422             :   2 (+  0,=  2,-  0), 50.0 %
Fire 532023                   :   2 (+  2,=  0,-  0), 100.0 %




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