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============================== My email: jotes@go2.pl



Chess engine: Kayra 1.6 (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=3543

Individual statistics: Kayra 1.4 - 410 games 3'+3" (+144,=266,-  0), 67.6 %
Fritz 17                      :   8 (+  7,=  1,-  0), 93.8 %
N2                            :   2 (+  1,=  1,-  0), 75.0 %
Raubfisch X48e                :   3 (+  0,=  3,-  0), 50.0 %
SugaR AI 2.50                 :   3 (+  0,=  3,-  0), 50.0 %
Stockfish 15                  :  15 (+  0,= 15,-  0), 50.0 %
Fisherov 0.98k                :  13 (+  0,= 13,-  0), 50.0 %
BrainLearn 17                 :   1 (+  0,=  1,-  0), 50.0 %
EMAN 7.93                     :   4 (+  0,=  4,-  0), 50.0 %
Lc0 0.29.0-rc0                :   7 (+  1,=  6,-  0), 57.1 %
Pigeon 1.5.1 fix              :   2 (+  2,=  0,-  0), 100.0 %
Wasp 5.50                     :   5 (+  3,=  2,-  0), 80.0 %
Komodo 13.02                  :  15 (+ 11,=  4,-  0), 86.7 %
Arasan 23.3                   :   4 (+  2,=  2,-  0), 75.0 %
Stockfish 030522              :   2 (+  0,=  2,-  0), 50.0 %
Zahak 10.0                    :   4 (+  3,=  1,-  0), 87.5 %
Hiarcs 15.5                   :   4 (+  2,=  2,-  0), 75.0 %
Caligula 1.0b                 :   4 (+  4,=  0,-  0), 100.0 %
Rodent NNUE 1.0               :   2 (+  2,=  0,-  0), 100.0 %
Loki 3.5.0                    :   2 (+  2,=  0,-  0), 100.0 %
Stash 33.0                    :   4 (+  3,=  1,-  0), 87.5 %
Avalanche 0.3a                :   2 (+  2,=  0,-  0), 100.0 %
Toga IV                       :   2 (+  2,=  0,-  0), 100.0 %
Tucano 10.00                  :   2 (+  2,=  0,-  0), 100.0 %
RofChade 3.0                  :   7 (+  2,=  5,-  0), 64.3 %
Horowitz 2.1                  :   2 (+  2,=  0,-  0), 100.0 %
Rebel 15x2                    :  10 (+  8,=  2,-  0), 90.0 %
StockfishMZ 170522            :   4 (+  0,=  4,-  0), 50.0 %
ProteusSF RBE 008             :   8 (+  0,=  8,-  0), 50.0 %
Nalwald 15                    :   2 (+  2,=  0,-  0), 100.0 %
Colossus 2022a                :   2 (+  2,=  0,-  0), 100.0 %
Blue Marlin 15.1              :   2 (+  0,=  2,-  0), 50.0 %
CorChess 290522               :   2 (+  0,=  2,-  0), 50.0 %
Fisherov chess monk 1.1       :   2 (+  0,=  2,-  0), 50.0 %
Bagatur 3.3                   :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 290522 Ivec         :   4 (+  0,=  4,-  0), 50.0 %
Berserk 9-dev3                :  19 (+  9,= 10,-  0), 73.7 %
Koivisto 8.9                  :  14 (+  2,= 12,-  0), 57.1 %
Swordfish 15.2                :  19 (+  0,= 19,-  0), 50.0 %
Fisherov chess monk           :  14 (+  0,= 14,-  0), 50.0 %
StockfishMZ Iccf 240522       :   8 (+  1,=  7,-  0), 56.2 %
Raubfisch X48d3               :   2 (+  0,=  2,-  0), 50.0 %
Cfish 260621                  :   2 (+  0,=  2,-  0), 50.0 %
Deep Shredder 13              :   4 (+  4,=  0,-  0), 100.0 %
Fritz 15                      :   4 (+  4,=  0,-  0), 100.0 %
Fat Titz 130122               :   2 (+  1,=  1,-  0), 75.0 %
Fat Titz 110122               :   2 (+  0,=  2,-  0), 50.0 %
Igel 3.1.0                    :   2 (+  1,=  1,-  0), 75.0 %
Blue Marlin 14.7              :   2 (+  0,=  2,-  0), 50.0 %
Slowchess 2.9                 :   2 (+  0,=  2,-  0), 50.0 %
Minic 3.22                    :   2 (+  1,=  1,-  0), 75.0 %
Blue Marlin 15.2a             :   5 (+  0,=  5,-  0), 50.0 %
Koivisto 8.13                 :  10 (+  2,=  8,-  0), 60.0 %
Marvin 6.0.0                  :   4 (+  4,=  0,-  0), 100.0 %
Protej 0.6.3                  :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 070622              :   8 (+  0,=  8,-  0), 50.0 %
Knightx 3.3                   :   4 (+  4,=  0,-  0), 100.0 %
CorChess 080622               :  14 (+  0,= 14,-  0), 50.0 %
Crystal 060622                :   2 (+  1,=  1,-  0), 75.0 %
EMAN 8.03                     :   9 (+  0,=  9,-  0), 50.0 %
Berserk 9                     :   9 (+  3,=  6,-  0), 66.7 %
Fisherov chess monk 1.2       :  13 (+  0,= 13,-  0), 50.0 %
RubiChess 20220223            :   2 (+  2,=  0,-  0), 100.0 %
GreKo 2021.08 NNUE            :   2 (+  2,=  0,-  0), 100.0 %
CorChess 210622               :   3 (+  0,=  3,-  0), 50.0 %
Gargantua 1.0                 :   3 (+  3,=  0,-  0), 100.0 %
Smallbrain 4.0                :   3 (+  3,=  0,-  0), 100.0 %
Alexandria 2.2                :   2 (+  2,=  0,-  0), 100.0 %
Devre 3.0                     :   2 (+  2,=  0,-  0), 100.0 %
Vafra 12.1 Cfish              :   2 (+  0,=  2,-  0), 50.0 %
Stockfish 200622              :   6 (+  0,=  6,-  0), 50.0 %
Dragon 3 by Komodo            :   6 (+  0,=  6,-  0), 50.0 %
Lc0 0.30.0-dev+git.3439f6c    :   6 (+  3,=  3,-  0), 75.0 %
EMAN 8.10                     :  10 (+  0,= 10,-  0), 50.0 %
Blunder 8.0.0                 :   6 (+  6,=  0,-  0), 100.0 %
Hiarcs 15.5 x64               :   2 (+  0,=  2,-  0), 50.0 %
Smallbrain 5.0                :   2 (+  2,=  0,-  0), 100.0 %
FoxSEE 8.2                    :   2 (+  2,=  0,-  0), 100.0 %
Leorik 2.2                    :   2 (+  2,=  0,-  0), 100.0 %
Swordfish 15.3                :   2 (+  0,=  2,-  0), 50.0 %
Dumb 1.10                     :   2 (+  2,=  0,-  0), 100.0 %
Kayra 1.5                     :   2 (+  0,=  2,-  0), 50.0 %
Maelstrom 1.0.0               :   2 (+  2,=  0,-  0), 100.0 %
StockNemo 3.0.0.2             :   2 (+  2,=  0,-  0), 100.0 %
Black Marlin 6.0              :   2 (+  1,=  1,-  0), 75.0 %
Blunder 8.5.5                 :   2 (+  2,=  0,-  0), 100.0 %

Chess engine: Kayra 1.6 download


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