Chess engine: ShashChess 25.1 (Windows, Android and Linux)

ShashChess - UCI chess engine.
Rating CEDR=3564

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

v.25.1:

ShashChess 25.1

Fixed mcts by Shashin

Stockfish patch

Fix tablebase probe for dtz >1000 w/o 50 move rule

For qn4N1/6R1/3K4/8/B2k4/8/8/8 w - - 0 1, white loses with DTZ 1034.

See https://syzygy-tables.info/?fen=qn4N1/6R1/3K4/8/B2k4/8/8/8_w_-_-_0_1

Prior to this fix, due to a too small hard-coded value, Stockfish interpreted this as winning.

The new value picked (1<<18) is large enough to deal with the largest DTZ values that can be stored in the current syzygy format.

closes #4187

Individual statistics: ShashChess 22 - 184 games CEDR (+ 21,=162,-  1), 55.4 %

Raubfisch X48e                :   4 (+  0,=  4,-  0), 50.0 %

SugaR AI 2.50                 :   4 (+  0,=  4,-  0), 50.0 %

Kayra 1.3                     :   4 (+  0,=  4,-  0), 50.0 %

Koivisto 8.6                  :   2 (+  2,=  0,-  0), 100.0 %

Stockfish 15                  :   6 (+  0,=  6,-  0), 50.0 %

Fisherov 0.98k                :  28 (+  0,= 28,-  0), 50.0 %

BrainLearn 17                 :  28 (+  0,= 28,-  0), 50.0 %

Fisherov 0.98g                :   4 (+  0,=  4,-  0), 50.0 %

EMAN 7.93                     :   8 (+  0,=  8,-  0), 50.0 %

Lc0 0.29.0-rc0                :   4 (+  1,=  3,-  0), 62.5 %

Weiawaga 5.0.0                :   2 (+  2,=  0,-  0), 100.0 %

Wasp 5.50                     :   4 (+  2,=  2,-  0), 75.0 %

Rebel 15                      :   4 (+  3,=  1,-  0), 87.5 %

Fisherov 0.98j                :   2 (+  0,=  2,-  0), 50.0 %

Eman 7.40                     :   2 (+  0,=  2,-  0), 50.0 %

Komodo 13.02                  :   4 (+  4,=  0,-  0), 100.0 %

Arasan 23.3                   :   2 (+  0,=  2,-  0), 50.0 %

Avalanche 0.3a                :   2 (+  2,=  0,-  0), 100.0 %

Swordfish 15.1                :   2 (+  0,=  2,-  0), 50.0 %

Rebel 14.2                    :   2 (+  2,=  0,-  0), 100.0 %

Seer 2.5                      :   2 (+  1,=  1,-  0), 75.0 %

Blue Marlin 15.1              :   2 (+  0,=  2,-  0), 50.0 %

Berserk 9-dev e68765ea32a3    :   2 (+  1,=  1,-  0), 75.0 %

CorChess 290522               :  20 (+  0,= 20,-  0), 50.0 %

Fisherov chess monk 1.1       :  20 (+  1,= 19,-  0), 52.5 %

Stockfish 070622              :  20 (+  0,= 19,-  1), 47.5 %

ShashChess 25.1 - download 

github:https://github.com/amchess/ShashChess/releases/tag/25.1