There seems something wrong here: What makes Velvet special is its 2nd risky-playing-style net. For using it, there is an UCI-command "Style". In offical Velvet releases, you can set it to "Risky" or "Normal". But here, only Normal is allowed, Risky is gone ???Jim Ablett wrote: ↑Wed Jul 16, 2025 12:19 am
I've updated the Proton link with new Windows & Linux builds. The previous ones had avx512 instructions in all the builds.
Jim.
New J.A Compiles
Moderator: Ras
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Re: New J.A Compiles
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Re: New J.A Compiles
https://github.com/mhonert/velvet-chess ... d6ef695f42pohl4711 wrote: ↑Wed Jul 16, 2025 5:47 amThere seems something wrong here: What makes Velvet special is its 2nd risky-playing-style net. For using it, there is an UCI-command "Style". In offical Velvet releases, you can set it to "Risky" or "Normal". But here, only Normal is allowed, Risky is gone ???Jim Ablett wrote: ↑Wed Jul 16, 2025 12:19 am
I've updated the Proton link with new Windows & Linux builds. The previous ones had avx512 instructions in all the builds.
Jim.
Jim.## Changes
- New default network with increased hidden layer size (2x1024 => 2x1536) trained using new generated training data
- Temporarily removed the "Risky" style net, as a new version has not yet been trained for the increased hidden layer size
- Increased maximum thread count
- Increased maximum hash size
- Some refactorings
- Bugfix for movelists out of bound access, which caused segfault in TCEC test game
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Re: New J.A Compiles
I compiled the last dev version a few months back > https://drive.proton.me/urls/7D0ZKKFMS0#WhLWAAIowNT2Frank Quisinsky wrote: ↑Wed Jul 16, 2025 3:34 am Good morning Jim,
now its hard to create a wish for you.
Thanks again for your last compiles.
This one is definitiv very intersting!!
Illumina 3 NN
https://github.com/Mergener/illumina
by Thomas Mergener, Brazil
Best
Frank
Jim.
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Re: New J.A Compiles
Hi Jim,
sorry, not saw your compile for Illumina3, great!
Have a nice day!
Best
Frank
sorry, not saw your compile for Illumina3, great!
Have a nice day!
Best
Frank
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Re: New J.A Compiles

Tomcat 1.0 by Gunnar Harms
Tomcat is 'Bobcat' by Gunnar Harms with enhancements by Norman Schmidt.
Tomcat 1.0 64 JAchess engine based on Bobcat 8.0 by Gunnar Harms
https://github.com/Bobcat/bobcat
- code optimizations and eval tuning
development tests (ultra-fast/self-play) indicate about a 45 elo improvement
Norman Schmidt firefather@telenet.be 6/26/2017
Code ported to Linux by me.
Windows/Linux & Android profiled builds
Proton link:
https://drive.proton.me/urls/N9HHM9605M#KOi4tD8ZkDPa
Smash link:
https://fromsmash.com/Tomcat10JA
Jim.
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Re: New J.A Compiles
Good morning Jim,
I overwork my overview for most of TOP-100 engines (urls, information and direct links about your compiles).
I do that after I not saw that Illumina is compiled by yourself and found a lot of mistakes.
https://www.amateurschach.de/download/_overview.zip ... *.htm file (~ 0,317 Mb)
Two wishes:
1. Cinder (your last compile is version 0.1.3
https://github.com/brunocodutra/cinder
2 Zahak 10.0 (your last compile is version 7.1)
https://github.com/amanjpro/zahak/
If you have time?!
The current dev from Cinder seems to be very interesting, many changes since 0.2.0.
Best
Frank
3. Maybe a new Sapling?
Current version is v1.2.7, your last compile is from 240910 dev.
https://github.com/Timmoth/Sapling
I overwork my overview for most of TOP-100 engines (urls, information and direct links about your compiles).
I do that after I not saw that Illumina is compiled by yourself and found a lot of mistakes.
https://www.amateurschach.de/download/_overview.zip ... *.htm file (~ 0,317 Mb)
Two wishes:
1. Cinder (your last compile is version 0.1.3
https://github.com/brunocodutra/cinder
2 Zahak 10.0 (your last compile is version 7.1)
https://github.com/amanjpro/zahak/
If you have time?!
The current dev from Cinder seems to be very interesting, many changes since 0.2.0.
Best
Frank
3. Maybe a new Sapling?
Current version is v1.2.7, your last compile is from 240910 dev.
https://github.com/Timmoth/Sapling
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Re: New J.A Compiles
Good morning Jim,
I checked older compiles by yourself.
The following compiles are clearly slower or light slower as the original compiles by the programmers:
1. Avalanche 2.1.0 NN JA
2. BlackCore 6.0 NN JA
3. Carp 3.01 NN JA
4. Odonata 1.0.0 NN JA
5. Rice 8.0.0 NN JA (as dev in your directory, but same version as 8.0.0)
6. Smallbrain 7.0.0 NN JA (as dev in your directory, but the same version as 7.0)
7. Peacekepper 3.01 NN JA (if I compare the original with your compiles ... eval is allways 0,00 in search ... something seems to be wrong).
Best
Frank
I checked older compiles by yourself.
The following compiles are clearly slower or light slower as the original compiles by the programmers:
1. Avalanche 2.1.0 NN JA
2. BlackCore 6.0 NN JA
3. Carp 3.01 NN JA
4. Odonata 1.0.0 NN JA
5. Rice 8.0.0 NN JA (as dev in your directory, but same version as 8.0.0)
6. Smallbrain 7.0.0 NN JA (as dev in your directory, but the same version as 7.0)
7. Peacekepper 3.01 NN JA (if I compare the original with your compiles ... eval is allways 0,00 in search ... something seems to be wrong).
Best
Frank
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Re: New J.A Compiles
Hi Jim,
now that you're cursing me ... hope not!
From the following engine versions are newer compiles online.
1. Bagatur 5.3 (your last compile is 5.2c)
https://github.com/bagaturchess/Bagatur
2. pawnocchio 1.7.2 (your last compile is 1.7.1)
https://github.com/JonathanHallstrom/pawnocchio
3. Sapling 1.2.7 (your last compile is 240910 dev)
https://github.com/Timmoth/Sapling
4. Cinder 0.2.0 (your last compile is 0.1.3) ... but a newer dev could be interesting, see one of my last messages
https://github.com/brunocodutra/cinder
5. And interesting could be Saturn 1.3 (never compiled by yourself)
https://github.com/egormoroz/saturn
Enough is enough ...
After these three messages, I no longer dare to enter the forum.
Best
Frank
But perhaps somebody know the country of the programmer from Iris?
now that you're cursing me ... hope not!
From the following engine versions are newer compiles online.
1. Bagatur 5.3 (your last compile is 5.2c)
https://github.com/bagaturchess/Bagatur
2. pawnocchio 1.7.2 (your last compile is 1.7.1)
https://github.com/JonathanHallstrom/pawnocchio
3. Sapling 1.2.7 (your last compile is 240910 dev)
https://github.com/Timmoth/Sapling
4. Cinder 0.2.0 (your last compile is 0.1.3) ... but a newer dev could be interesting, see one of my last messages
https://github.com/brunocodutra/cinder
5. And interesting could be Saturn 1.3 (never compiled by yourself)
https://github.com/egormoroz/saturn
Enough is enough ...
After these three messages, I no longer dare to enter the forum.
Best
Frank
But perhaps somebody know the country of the programmer from Iris?
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Re: New J.A Compiles

https://github.com/amanjpro/zahak
Zahak 10.0 by Amanj Sherwany
Zahak 10.0 64 JA
Windows bmi2 build
Proton link:
https://drive.proton.me/urls/434S21BPZC#dx6e8i3uXIOR
Smash link:
https://fromsmash.com/Zahak-100JA
Jim.
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Re: New J.A Compiles
Hi Jim,
short information!
Zahak 10.0 NN JA is clearly faster as the compile by the programmer!
Perhaps a bit animation for the programmer of Zahak, gave us so many years a fantastic "endgame" engine.
Great!
Best
Frank
short information!
Zahak 10.0 NN JA is clearly faster as the compile by the programmer!
Perhaps a bit animation for the programmer of Zahak, gave us so many years a fantastic "endgame" engine.
Great!
Best
Frank