Velvet - UCI Chess Engine
Author: Martin Hornet,
Rating CEDR (Chess Engines Diary Rating)=3357
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
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.5.0.0
This release provides new engine features (e.g. MultiPV analysis) and a small strength increase
Estimated strength increase: ~ 30 Elo
Changes
Add support for MultiPV analysis
Add support for UCI "go mate ..." command
Add support for UCI "go searchmoves ..." command
Improved training set generator and NN trainer
New neural network based upon 4.1.0 self-play training data
Some minor search improvements
Some minor optimizations
Update to latest Rust version (1.66.0)
Due to the lack of an ARM-based (Apple Silicon) computer, the new "apple-silicon" builds are untested.
Individual statistics: 141 Velvet 4.0.1 - 264 games (+102,= 83,- 79), 54.4 %
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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