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Chess egnine: Crystallite 1.1a (a simple modification of Crystal 3.1)

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Crystallite 
Crystallite is a UCI chess engine derived from Stockfish. Crystallite is a simple modification of an old Crystal 3.1 by Joseph Ellis. Crystallite is made especially for fortress positions. It recognizes them better than Crystal 3.1, Crystal 3.2 and Crystal 4.0.

Crystallite 1.1a is the same engine as Crystallite 1.1 but it is faster: AVX2 (+4.3%), BMI2 (+5.8%), modern (+1.6%). The exception is base engine, where old 1.1 turned out to be faster than 1.1a by 7.5%, so this version remains unchanged.

Crystallite 1.1a - Rating CEDR=3314

Individual statistics: Crystallite 1.1 - 44 games (+ 10,= 27,-  7), 53.4 %
Lc0 0.28.0                    :   2 (+  1,=  1,-  0), 75.0 %
Fisherov 0.98h                :   4 (+  0,=  3,-  1), 37.5 %
Blue Marlin 14.4a             :   2 (+  0,=  1,-  1), 25.0 %
CorChess 111121               :   2 (+  0,=  2,-  0), 50.0 %
Marvin 5.2.0                  :   2 (+  1,=  1,-  0), 75.0 %
Belofte 2.1.4                 :   2 (+  2,=  0,-  0), 100.0 %
BrainLearn 15                 :   2 (+  0,=  1,-  1), 25.0 %
Wasp 5.00                     :   2 (+  2,=  0,-  0), 100.0 %
ShashChess 20                 :   2 (+  0,=  2,-  0), 50.0 %
SugaR AI 2.50                 :   4 (+  0,=  4,-  0), 50.0 %
Kayra 1.0 v4                  :   2 (+  0,=  2,-  0), 50.0 %
Mayhem 6.2                    :   2 (+  1,=  1,-  0), 75.0 %
Koivisto 7.8                  :   4 (+  1,=  3,-  0), 62.5 %
Lynx 0.8.1                    :   2 (+  2,=  0,-  0), 100.0 %
Raubfisch X47d3               :   4 (+  0,=  3,-  1), 37.5 %
Raubfisch GTZ26d3             :   2 (+  0,=  1,-  1), 25.0 %
Crystal 3.2                   :   2 (+  0,=  1,-  1), 25.0 %
Stockfish 211121              :   2 (+  0,=  1,-  1), 25.0 %


Crystal seeks to address the following issues where chess engines often have trouble:

    1) Positional or tactical blindness due to over reductions or over pruning.
    2) Draw blindess due to the move horizon (50 move rule).
    3) Displayed PV reliability.

Crystallite 1.1a download


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