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Chess engine: Nalwald 16

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Nalwald - Chess engine written in NimAuthor: Jost Triller  Rating JCER=2804

v.16:
Changes
performance improvements
bigger passed pawn evaluation table
improved hash table
better optimization data
bug fix in repetition check
extended killers

103 ยฑ17 Elo in selfplay vs Nalwald 15 at 15s+0.3s.
Probably ~50 Elo better against other engines.

Binaries
Windows:
using BMI2 and POPCOUNT: Nalwald-16-modern.exe
for old computers: Nalwald-16.exe
Intel CPUs including and after Haswell (2013) support BMI2 and POPCOUNT
AMD CPUs including and after Zen 1 (2017) support BMI2 and POPCOUNT

Individual statistics: Nalwald 15 - 135 games CEDR (+ 35,= 25,- 75), 35.2 %
Baron 3.44.1                  :   4 (+  1,=  3,-  0), 62.5 %
Ruydos 1.1.11                 :   4 (+  2,=  1,-  1), 62.5 %
Delocto 0.61n                 :   4 (+  4,=  0,-  0), 100.0 %
Fridolin 3.10                 :   2 (+  0,=  2,-  0), 50.0 %
ECE 20.1                      :   2 (+  1,=  1,-  0), 75.0 %
Godel 7.0                     :   2 (+  0,=  2,-  0), 50.0 %
Asymptote 0.8                 :   2 (+  1,=  1,-  0), 75.0 %
Kayra 1.3                     :   2 (+  0,=  0,-  2),  0.0 %
Stockfish 15                  :   2 (+  0,=  0,-  2),  0.0 %
Fisherov 0.98k                :   4 (+  0,=  0,-  4),  0.0 %
BrainLearn 17                 :   2 (+  0,=  0,-  2),  0.0 %
Devel 4.0.2.3                 :   4 (+  2,=  2,-  0), 75.0 %
Cheese 3.0.1                  :   4 (+  3,=  1,-  0), 87.5 %
Wasp 5.50                     :   2 (+  0,=  1,-  1), 25.0 %
Komodo 13.02                  :   4 (+  0,=  0,-  4),  0.0 %
Arasan 23.3                   :   2 (+  0,=  0,-  2),  0.0 %
Zahak 10.0                    :   2 (+  0,=  0,-  2),  0.0 %
Hiarcs 15.5                   :   2 (+  0,=  0,-  2),  0.0 %
Protej 0.6.2                  :   2 (+  0,=  1,-  1), 25.0 %
OliThink 5.10.1               :   4 (+  2,=  1,-  1), 62.5 %
Mantissa 3.3.0                :   2 (+  0,=  0,-  2),  0.0 %
Caissa 0.5                    :   2 (+  0,=  0,-  2),  0.0 %
Stash 33.0                    :   2 (+  0,=  0,-  2),  0.0 %
Horowitz 2.1                  :   2 (+  2,=  0,-  0), 100.0 %
Rebel 15x2                    :   2 (+  0,=  0,-  2),  0.0 %
Minic 3.19                    :   2 (+  0,=  0,-  2),  0.0 %
StockfishMZ 170522            :   2 (+  0,=  0,-  2),  0.0 %
ProteusSF RBE 008             :   2 (+  0,=  0,-  2),  0.0 %
Coiled 1.1                    :   2 (+  0,=  0,-  2),  0.0 %
Devre 2.0                     :   4 (+  0,=  2,-  2), 25.0 %
Dumb 1.9                      :   4 (+  3,=  1,-  0), 87.5 %
Vafra 3.3.1                   :   2 (+  1,=  1,-  0), 75.0 %
Mayhem 7.2                    :   2 (+  2,=  0,-  0), 100.0 %
Benjamin 1.1                  :   4 (+  2,=  1,-  1), 62.5 %
NiCim 3.4                     :   2 (+  1,=  0,-  1), 50.0 %
Colossus 2022a                :   2 (+  2,=  0,-  0), 100.0 %
Bagatur 3.3                   :   4 (+  4,=  0,-  0), 100.0 %
Vafra 3.3.2                   :   4 (+  0,=  2,-  2), 25.0 %
Koivisto 8.8                  :   2 (+  0,=  0,-  2),  0.0 %
Kayra 1.4                     :   2 (+  0,=  0,-  2),  0.0 %
Deep Shredder 13              :   2 (+  0,=  0,-  2),  0.0 %
Fritz 15                      :   2 (+  0,=  1,-  1), 25.0 %
Igel 3.1.0                    :   2 (+  0,=  0,-  2),  0.0 %
Halogen 10.22                 :   2 (+  0,=  0,-  2),  0.0 %
Minic 3.22                    :   2 (+  0,=  0,-  2),  0.0 %
Blue Marlin 15.2a             :   2 (+  0,=  0,-  2),  0.0 %
Koivisto 8.13                 :   2 (+  0,=  0,-  2),  0.0 %
Marvin 6.0.0                  :   2 (+  0,=  0,-  2),  0.0 %
Protej 0.6.3                  :   1 (+  1,=  0,-  0), 100.0 %
Stockfish 070622              :   2 (+  0,=  0,-  2),  0.0 %
Knightx 3.3                   :   2 (+  1,=  0,-  1), 50.0 %
CorChess 080622               :   2 (+  0,=  0,-  2),  0.0 %
Crystal 060622                :   2 (+  0,=  0,-  2),  0.0 %
EMAN 8.03                     :   2 (+  0,=  0,-  2),  0.0 %
NiCim 3.4.1                   :   2 (+  0,=  1,-  1), 25.0 %

Nalwald 16 download


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