Working historical MAME engines in picochess v.3.4

[Luigi Vogliobene]

Hi, would it be possible to have a list of historical engines tested and working correctly in picochess v.3.4 64bit (armv8)? Thank you. Luigi

[Randy Reade]

They are listed in /opt/picochess/engines/aarch64/engines_ini/all-retro.ini.

Randy

On Wed, Mar 4, 2026 at 5:41 AM Luigi Vogliobene <lvogl...@gmail.com> wrote:

Hi, would it be possible to have a list of historical engines tested and working correctly in picochess v.3.4 64bit (armv8)? Thank you. Luigi

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[Luigi Vogliobene]

I know but not all these engines working in picochess. Luigi

[Randy Reade]

Let me know which ones and I’ll have a look.

Randy

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[Luigi Vogliobene]

Mephisto Polgar, the 1st I remember

[Randy Reade]

I just tested Mephisto Polgar and it's working for me. Make sure you are using roms that are compatible with the MAME version.

'cd /opt/picochess/engines/mame_emulation'

'./mess -version'

'./mess -verifyroms polgar'

Randy

[Luigi Vogliobene]

Thank you Randy.

My MESS version is 0.279 and the romset Polgar is declared bad in my RPi5.

Luigi