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.
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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