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Chess engine for Android: Caissa 1.0 NNUE



Caissa - UCI chess engine,  Author: Michał Witanowski
Rating CEDR=3238

v.1.0:
Added support for Gaviota tablebases (for now used only for root moves and during training)
Introduced endgame neural network (used for positions with 4 and 5 pieces)
Incrementally updated PSQT [Optimization]
Neural network tuner tweaks
New neural network trained on more data
More hardcoded endgame knowledge
Aspiration windows tweaks



Individual statistics: Caissa 0.5 NNUE - 230 games (+102,= 89,- 39), 63.7 % (for Windows)
Betsabe II 1.96               :   2 (+  1,=  0,-  1), 50.0 %
ECE 20.1                      :   2 (+  1,=  1,-  0), 75.0 %
Dimitri 5.2.3                 :   2 (+  2,=  0,-  0), 100.0 %
Fritz 17                      :   8 (+  3,=  5,-  0), 68.8 %
SeeChess 1.2                  :   2 (+  2,=  0,-  0), 100.0 %
Raubfisch X48e                :   2 (+  0,=  1,-  1), 25.0 %
Kayra 1.3                     :   2 (+  0,=  1,-  1), 25.0 %
Stockfish 15                  :   6 (+  0,=  2,-  4), 16.7 %
Fisherov 0.98k                :   4 (+  0,=  2,-  2), 25.0 %
BrainLearn 17                 :   2 (+  0,=  2,-  0), 50.0 %
Lozza 2.2                     :   4 (+  4,=  0,-  0), 100.0 %
Wasp 5.50                     :   2 (+  1,=  1,-  0), 75.0 %
Rebel 15                      :   2 (+  0,=  1,-  1), 25.0 %
Fisherov 0.98j                :   2 (+  0,=  1,-  1), 25.0 %
Komodo 13.02                  :   4 (+  1,=  3,-  0), 62.5 %
Arasan 23.3                   :   4 (+  0,=  3,-  1), 37.5 %
Barbarossa 0.6.0              :   2 (+  2,=  0,-  0), 100.0 %
Zahak 10.0                    :   2 (+  0,=  2,-  0), 50.0 %
Hiarcs 15.5                   :   4 (+  0,=  4,-  0), 50.0 %
Admete 1.5.0                  :   2 (+  2,=  0,-  0), 100.0 %
Caligula 1.0b                 :   2 (+  2,=  0,-  0), 100.0 %
Protej 0.6.2                  :   2 (+  2,=  0,-  0), 100.0 %
Supernova 2.4                 :   2 (+  1,=  1,-  0), 75.0 %
Zevra 2.5                     :   2 (+  2,=  0,-  0), 100.0 %
K2 0.99                       :   2 (+  2,=  0,-  0), 100.0 %
Raven 1.20                    :   2 (+  2,=  0,-  0), 100.0 %
Novice 3.1                    :   2 (+  2,=  0,-  0), 100.0 %
Ceibo 0.8                     :   2 (+  2,=  0,-  0), 100.0 %
MadChess 3.0                  :   2 (+  2,=  0,-  0), 100.0 %
Paulchen 332 0.1.1            :   2 (+  1,=  1,-  0), 75.0 %
FoxSEE 7.35.0                 :   2 (+  2,=  0,-  0), 100.0 %
Rodent NNUE 1.0               :   4 (+  2,=  2,-  0), 75.0 %
Waxman 2020                   :   2 (+  2,=  0,-  0), 100.0 %
Loki 3.5.0                    :   2 (+  2,=  0,-  0), 100.0 %
Galjoen 0.41.2                :   2 (+  2,=  0,-  0), 100.0 %
MagiC 2                       :   2 (+  2,=  0,-  0), 100.0 %
Cosette 5.1                   :   2 (+  2,=  0,-  0), 100.0 %
Ceechess 1.4                  :   2 (+  2,=  0,-  0), 100.0 %
MinimalChess 0.6              :   2 (+  2,=  0,-  0), 100.0 %
Baislicka dev ac327fd         :   2 (+  2,=  0,-  0), 100.0 %
Isa 2.0.83                    :   2 (+  2,=  0,-  0), 100.0 %
Stash 33.0                    :   2 (+  1,=  1,-  0), 75.0 %
RofChade 3.0                  :   4 (+  0,=  2,-  2), 25.0 %
Horowitz 2.1                  :   2 (+  2,=  0,-  0), 100.0 %
Rebel 15x2                    :  10 (+  3,=  7,-  0), 65.0 %
Minic 3.19                    :   2 (+  0,=  2,-  0), 50.0 %
Stockfish 140522              :   2 (+  0,=  1,-  1), 25.0 %
StockfishMZ 170522            :   6 (+  0,=  0,-  6),  0.0 %
ProteusSF RBE 008             :   4 (+  0,=  4,-  0), 50.0 %
Nalwald 15                    :   2 (+  2,=  0,-  0), 100.0 %
Colossus 2022a                :   6 (+  6,=  0,-  0), 100.0 %
Berserk 9-dev e68765ea32a3    :   2 (+  0,=  1,-  1), 25.0 %
Stockfish 290522 Ivec         :   4 (+  0,=  2,-  2), 25.0 %
Vafra 3.3.2                   :   4 (+  2,=  1,-  1), 62.5 %
Koivisto 8.8                  :   4 (+  0,=  3,-  1), 37.5 %
Halogen 10.23.11              :   2 (+  1,=  1,-  0), 75.0 %
Berserk 9-dev3                :   2 (+  0,=  1,-  1), 25.0 %
Fat Titz 110122               :   2 (+  0,=  1,-  1), 25.0 %
Mayhem 7.3                    :   2 (+  0,=  2,-  0), 50.0 %
Halogen 10.22                 :   2 (+  1,=  1,-  0), 75.0 %
Marvin 6.0.0                  :   6 (+  1,=  5,-  0), 58.3 %
Knightx 3.3                   :   2 (+  1,=  1,-  0), 75.0 %
Journeyman 2.1                :   2 (+  2,=  0,-  0), 100.0 %
CorChess 210622               :   6 (+  0,=  3,-  3), 25.0 %
Gargantua 1.0                 :   2 (+  1,=  1,-  0), 75.0 %
Smallbrain 4.0                :   2 (+  1,=  1,-  0), 75.0 %
Alexandria 2.2                :   2 (+  2,=  0,-  0), 100.0 %
Devre 3.0                     :   2 (+  2,=  0,-  0), 100.0 %
Vafra 12.1 Cfish              :   2 (+  0,=  1,-  1), 25.0 %
Rebel 15.1                    :   4 (+  0,=  4,-  0), 50.0 %
Blunder 8.0.0                 :   4 (+  4,=  0,-  0), 100.0 %
Stockfish 110722 Ivec         :   4 (+  0,=  2,-  2), 25.0 %
Frozenight 4.0.0              :   4 (+  1,=  3,-  0), 62.5 %
Stockfish 040722              :   4 (+  0,=  2,-  2), 25.0 %
Simple Chess 1.1.0            :   4 (+  4,=  0,-  0), 100.0 %
Caissa 0.7.0                  :   4 (+  2,=  2,-  0), 75.0 %
CorChess 110722               :   4 (+  0,=  1,-  3), 12.5 %
FoxSEE 8                      :   4 (+  4,=  0,-  0), 100.0 %


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