v4 x86_64 Engines Pack

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RandyR

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Nov 25, 2025, 4:21:40 PM11/25/25
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Hi Everyone,

For those who want to run v4 on an x86_64 Linux machine (running a Debian based OS) I have put together an engine pack that you can use to replace the /opt/picochess/engines folder (backup your original).

Once the PicoChess install scripts are able to set up a PicoChess installation on an x86 system perhaps Johan can provide this package as a resource. Note that some engines might require further apt packages or python modules to run, depending on your current setup.

Randy

Here is the link:

Johan Sjöblom

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Nov 26, 2025, 1:00:16 PM11/26/25
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Nice :-)
I will have a look at this and see if I can make it a "lite" package for Debian x86_64.

Luigi Vogliobene

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Dec 25, 2025, 2:46:23 PM12/25/25
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Hi and Merry Christmas to everyone:

I wonder if the Johann's install-picochess.sh script asis do work in a x86_64 Debian 13.2 amd64 laptop (user account pi) or if
there are some further customization to get it work properly.

Thank you.

Luigi

RandyR

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Feb 8, 2026, 2:31:05 PM (19 hours ago) Feb 8
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I have updated the x86_64 Engines Pack with a fixed MAME compile which was missing the no-nag code. Sorry for any frustrations caused. Hopefully, with the correct rom version, PicoChess should no longer freeze when using a rom with known issues (and no pop-up warning window should appear with retro artwork enabled). Perhaps Johan can update his x86_64_mame_lite.tar.gz resource file.

This also works in PicoChess v3.4 but requires more effort to install on x86_64.

The link to the Engines Pack is the same:


If you just want the corrected MAME file (mess), you can download it here:


Randy

Ro Bert

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4:34 AM (5 hours ago) 4:34 AM
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Hi Randy,

in my v4.2.1 installation only a few MAME engines are chooseable via the webinterface.
I did a "/install-picochess.sh lite" installation. Is there anything i should do to get access to
the full pack as in your v4_x86_64_engines.7z ?

Robert
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