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Chess engine: Kayra 1.4 (is a Stockfish based)

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From author:
Kayra chess engine is a Stockfish based engine and it's an early development version. I have been working on this chess engine for a short time.
Kayra is not an another Stockfish clone. I made very serious changes in the most critical parts of Stockfish, especially in the evaluation section.
I made very agressive changes more than 50 parameters in the evalution code. I made very aggressive changes at psqt and pawns sections. I changed more than 250 parameters at psqt and pawns section. I weakened Stockfish a lot at the start of all these critical changes, but I'm finally getting close to balancing it.
Although I made very critical changes in Stockfish codes and more than 300 parameters, the fact that Kayra didn' t perform badly gave me hope for the future. This version of Kayra is an early test version. If it reaches the level I want, there is no doubt that I' ll publish Kayra as open code source chess engine.
Rating CEDR=3479

Individual statistics: Kayra 1.1 - 248 games (+ 77,=170,-  1), 65.3 %
Komodo 12.1.1                 :   2 (+  1,=  1,-  0), 75.0 %
Fritz 17                      :   6 (+  4,=  2,-  0), 83.3 %
Fire 8 NN MC.3                :   2 (+  1,=  1,-  0), 75.0 %
GreKo 2021.08 NNUE            :   2 (+  2,=  0,-  0), 100.0 %
Benjamin 1.1                  :   2 (+  2,=  0,-  0), 100.0 %
Barbarossa 0.6.0              :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 14.1                :   8 (+  0,=  8,-  0), 50.0 %
Nemorino 6.00                 :   2 (+  2,=  0,-  0), 100.0 %
SugaR AI 2.50                 :   4 (+  0,=  4,-  0), 50.0 %
Fisherov 0.98i                :   8 (+  0,=  8,-  0), 50.0 %
Arasan 23.2                   :   2 (+  2,=  0,-  0), 100.0 %
Fisherov 0.98j                :  42 (+  0,= 42,-  0), 50.0 %
Rodent NNUE 1.0               :   2 (+  2,=  0,-  0), 100.0 %
Lc0 0.28.2                    :   4 (+  2,=  2,-  0), 75.0 %
Bagatur 3.0                   :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 020122              :   2 (+  0,=  2,-  0), 50.0 %
Wasp 5.20                     :   2 (+  2,=  0,-  0), 100.0 %
Berserk 8.5                   :   2 (+  0,=  2,-  0), 50.0 %
GreKo 2021.12                 :   2 (+  2,=  0,-  0), 100.0 %
Wasp 5.20 second compiles     :   2 (+  1,=  1,-  0), 75.0 %
Swordfish 14.7                :   2 (+  0,=  2,-  0), 50.0 %
Halogen 10.22                 :   2 (+  1,=  1,-  0), 75.0 %
Blue Marlin 14.7              :   2 (+  0,=  2,-  0), 50.0 %
Fritz 15                      :   4 (+  4,=  0,-  0), 100.0 %
Devel 4.0.2.3                 :   2 (+  2,=  0,-  0), 100.0 %
Mantissa 3.3.0                :   2 (+  2,=  0,-  0), 100.0 %
Raubfisch X48c                :  52 (+  2,= 50,-  0), 51.9 %
Bagatur 3.2                   :   2 (+  2,=  0,-  0), 100.0 %
Myrddin 0.89                  :   2 (+  2,=  0,-  0), 100.0 %
Cheese 3.0.1                  :   2 (+  2,=  0,-  0), 100.0 %
Raubfisch X48c2               :   2 (+  0,=  2,-  0), 50.0 %
Black Marlin 4.0              :   2 (+  1,=  1,-  0), 75.0 %
ShashChess 20.2               :   2 (+  0,=  2,-  0), 50.0 %
BrainLearn 15.2               :   2 (+  0,=  2,-  0), 50.0 %
Combusken 2.0.0               :   4 (+  3,=  1,-  0), 87.5 %
Stockfish 170122              :   4 (+  0,=  4,-  0), 50.0 %
Rebel 14 NNUE                 :   2 (+  2,=  0,-  0), 100.0 %
RubiChess 2021                :   2 (+  1,=  1,-  0), 75.0 %
Raubfisch X48c1               :   4 (+  0,=  4,-  0), 50.0 %
Stockfish 10                  :   4 (+  1,=  3,-  0), 62.5 %
Little Goliath 3.15           :   2 (+  2,=  0,-  0), 100.0 %
Velvet 3.1.3                  :   2 (+  2,=  0,-  0), 100.0 %
Protej 0.6.1                  :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 250122              :   2 (+  0,=  2,-  0), 50.0 %
Clover 3.0                    :   2 (+  2,=  0,-  0), 100.0 %
Anka 0.6.3                    :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 130122              :   2 (+  0,=  2,-  0), 50.0 %
Eman 7.80                     :   2 (+  0,=  2,-  0), 50.0 %
CorChess 070222               :   2 (+  0,=  2,-  0), 50.0 %
Mayhem 6.7                    :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 170222              :   2 (+  0,=  2,-  0), 50.0 %
Keele 1.0                     :   2 (+  2,=  0,-  0), 100.0 %
Fire 8.2                      :   2 (+  1,=  1,-  0), 75.0 %
Leorik 1.0                    :   2 (+  1,=  0,-  1), 50.0 %
Rebel 14.2                    :   2 (+  1,=  1,-  0), 75.0 %
Lozza 2.2                     :   2 (+  1,=  1,-  0), 75.0 %
Arasan 23.3                   :   2 (+  1,=  1,-  0), 75.0 %
Mayhem 6.9                    :   2 (+  1,=  1,-  0), 75.0 %
Caissa 0.5                    :   2 (+  1,=  1,-  0), 75.0 %
Princhess 0.7.0               :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 200322 Ivec         :   2 (+  0,=  2,-  0), 50.0 %
CorChess 200322               :   2 (+  0,=  2,-  0), 50.0 %
Frozenight 2.1.0              :   2 (+  2,=  0,-  0), 100.0 %
Kayra 1.2                     :   2 (+  0,=  2,-  0), 50.0 %

Chess engine: Kayra 1.4 download


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