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Chess engine: Velvet 5.1.0 NNUE for Mac


Velvet - UCI Chess Engine
Author: Martin Hornet, 
Rating CEDR (Chess Engines Diary Rating)=3350 (Windows)

It is based upon my previous web-based engine Wasabi, which can be played here.
Installation
x86_64-modern - recommended for recent CPUs from 2013 onwards (requires a CPU with support for the BMI1 instruction sets)
x86_64-popcnt - for older 64-Bit CPUs, which support the POPCNT instruction, but not BMI1
x86_64-vintage - for older 64-Bit CPUs, which support neither POPCNT nor BMI1

v.5.1.0
This releases comes with a bigger neural network and support for Syzygy Tablebase
Estimated strength increase: ~ 40 Elo

Changes
Increased hidden layer size
Re-introduced GPU trainer
Fixed UCI compatibility issue with Nibbler Chess UI
Fixed analysis mode issue when search reaches the maximum depth
Integrated Fathom for Syzygy Tablebase support
Some minor search-related improvements

Individual statistics: 141 Velvet 4.0.1 - 264 games (+102,= 83,- 79), 54.4 % (Windows)

Critter 1.6a                  :   2 (+  2,=  0,-  0), 100.0 %
Fritz 17                      :   2 (+  0,=  2,-  0), 50.0 %
Xiphos 0.6.1                  :  10 (+  4,=  4,-  2), 60.0 %
Lc0 0.29.0-rc0                :   2 (+  0,=  0,-  2),  0.0 %
Devel 4.0.2.3                 :   2 (+  2,=  0,-  0), 100.0 %
Lozza 2.2                     :   2 (+  2,=  0,-  0), 100.0 %
Komodo 13.02                  :   2 (+  1,=  0,-  1), 50.0 %
Stash 33.0                    :   2 (+  1,=  0,-  1), 50.0 %
RofChade 3.0                  :   2 (+  0,=  2,-  0), 50.0 %
Rebel 15x2                    :   2 (+  0,=  1,-  1), 25.0 %
Colossus 2022a                :   4 (+  4,=  0,-  0), 100.0 %
Fisherov chess monk           :   4 (+  0,=  1,-  3), 12.5 %
Deep Shredder 13              :  12 (+  5,=  5,-  2), 62.5 %
Fire 8 NN.MC.3                :   2 (+  0,=  1,-  1), 25.0 %
Marvin 6.0.0                  :   2 (+  0,=  2,-  0), 50.0 %
Knightx 3.3                   :   2 (+  2,=  0,-  0), 100.0 %
Berserk 9                     :   6 (+  0,=  3,-  3), 25.0 %
Fisherov chess monk 1.2       :   2 (+  0,=  1,-  1), 25.0 %
Winter 0.9                    :  10 (+  6,=  4,-  0), 80.0 %
Gargantua 1.0                 :  12 (+  9,=  3,-  0), 87.5 %
Prophet 4.2                   :   2 (+  2,=  0,-  0), 100.0 %
EMAN 8.10                     :   4 (+  0,=  1,-  3), 12.5 %
ProteusSF RBE 008b            :   4 (+  0,=  1,-  3), 12.5 %
Foxsee 8.2                    :  10 (+ 10,=  0,-  0), 100.0 %
Rebel 15.1                    :  24 (+  0,= 14,- 10), 29.2 %
Alexandria 2.3                :  20 (+ 14,=  6,-  0), 85.0 %
Blunder 8.0.0                 :  14 (+ 14,=  0,-  0), 100.0 %
Corchess 110722               :  10 (+  0,=  3,-  7), 15.0 %
Minic 3.24                    :  16 (+  2,= 10,-  4), 43.8 %
Stockfish 110722 Ivec         :  12 (+  0,=  3,-  9), 12.5 %
Belofte 2.1.5                 :   2 (+  2,=  0,-  0), 100.0 %
Cinnamon 2.5                  :   4 (+  3,=  1,-  0), 87.5 %
Frozenight 4.0.0              :   2 (+  2,=  0,-  0), 100.0 %
Simple Chess 1.0.0            :   1 (+  1,=  0,-  0), 100.0 %
Uralochka 3.37c               :   2 (+  1,=  1,-  0), 75.0 %
Crystal 4.1                   :   2 (+  0,=  1,-  1), 25.0 %
Stockfish 040722              :   4 (+  0,=  1,-  3), 12.5 %
Spectral                      :   2 (+  0,=  1,-  1), 25.0 %
Bagatur 3.4b                  :   3 (+  2,=  1,-  0), 83.3 %
FoxSEE 7.36                   :   4 (+  4,=  0,-  0), 100.0 %
Simple Chess 1.1.0            :   2 (+  2,=  0,-  0), 100.0 %
CorChess 110722               :   2 (+  0,=  1,-  1), 25.0 %
Leorik 2.2                    :   2 (+  2,=  0,-  0), 100.0 %
Swordfish 15.3                :   2 (+  0,=  1,-  1), 25.0 %
Kayra 1.5                     :   4 (+  0,=  0,-  4),  0.0 %
Roc 1.9                       :  10 (+  3,=  7,-  0), 65.0 %
Stockfish 130722              :   4 (+  0,=  0,-  4),  0.0 %
CorChess 180722               :   4 (+  0,=  0,-  4),  0.0 %
Dragon 3 by Komodo Chess 64-b :   4 (+  0,=  1,-  3), 12.5 %
Lc0 0.30.0-dev+git.9533e32    :   4 (+  0,=  0,-  4),  0.0 %

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