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Chess engine ShashChess 30



ShashChess - UCI chess engine.
Rating CEDR=3719 (01.03.2023)

ShashChess is a free UCI chess engine derived from Stockfish family chess engines. 

v.30:
Solved a bug in winProbability implementation (replaced the map with an array).
Improvements in Shashin theory.
New net from stockfish testing framework, slightly better than the original one.
Stockfish patch:
Remove 'si' StateInfo variable/parameter.
Since st is a member of position we don't need to pass it separately as
parameter.
While being there also remove some line in pos_is_ok, where
a copy of StateInfo was made by using default copy constructor and then verified it's correctedness by doing a memcmp.
There is no point in doing that.

Individual statistics: ShashChess 26.1 - 110 games (+ 33,= 76,- 1), 64.5  %
Slowchess 2.9                 :   4 (+  2,=  2,-  0), 75.0 %
Fisherov chess monk 1.2       :   4 (+  1,=  3,-  0), 62.5 %
RubiChess 20220813            :   4 (+  1,=  3,-  0), 62.5 %
Velvet 4.1.0                  :   4 (+  2,=  2,-  0), 75.0 %
Dragon 3.1 by Komodo          :   4 (+  1,=  3,-  0), 62.5 %
Revenge 3.0                   :   4 (+  1,=  3,-  0), 62.5 %
Teal Oracle                   :   2 (+  0,=  2,-  0), 50.0 %
ProteusSF Piranha 220904      :   4 (+  0,=  3,-  1), 37.5 %
Minic 3.30                    :   4 (+  3,=  1,-  0), 87.5 %
Ethereal 13.88 Plus NNUE      :   4 (+  2,=  2,-  0), 75.0 %
Koivisto 8.16                 :   4 (+  1,=  3,-  0), 62.5 %
Uralochka 3.38c               :   4 (+  3,=  1,-  0), 87.5 %
Halogen 11                    :   4 (+  3,=  1,-  0), 87.5 %
Seer 2.6                      :   4 (+  1,=  3,-  0), 62.5 %
Berserk 20220725              :   2 (+  1,=  1,-  0), 75.0 %
pHoBiA 4.1                    :   2 (+  0,=  2,-  0), 50.0 %
Crystal 5 KWK                 :   4 (+  0,=  4,-  0), 50.0 %
Kayra 1.7                     :   4 (+  0,=  4,-  0), 50.0 %
Cool Iris 5.2                 :   2 (+  1,=  1,-  0), 75.0 %
Caissa 1.3                    :   2 (+  2,=  0,-  0), 100.0 %
Brainlearn 20                 :   2 (+  0,=  2,-  0), 50.0 %
Stockfish dev-20221123        :   4 (+  0,=  4,-  0), 50.0 %
CorChess 20221121             :   2 (+  0,=  2,-  0), 50.0 %
Reksio                        :   4 (+  0,=  4,-  0), 50.0 %
Genko 1.0a                    :   2 (+  0,=  2,-  0), 50.0 %
Dark Sister 4.0               :   4 (+  0,=  4,-  0), 50.0 %
Solidor                       :   4 (+  1,=  3,-  0), 62.5 %
Spectral Tactical 1.80        :   4 (+  0,=  4,-  0), 50.0 %
Viridithas 5.0.0              :   4 (+  4,=  0,-  0), 100.0 %
Berserk 20221129              :   2 (+  1,=  1,-  0), 75.0 %
Caissa 1.4                    :   2 (+  2,=  0,-  0), 100.0 %
Rebel 16                      :   2 (+  0,=  2,-  0), 50.0 %
Brainlearn 20.1 vulkan        :   2 (+  0,=  2,-  0), 50.0 %
Genko 1.0                     :   2 (+  0,=  2,-  0), 50.0 %

ShashChess 30 - download 
github:https://github.com/amchess/ShashChess/releases/tag/30

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