Chess engine: Kayra 1.4 (is a Stockfish based)

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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