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