Alternative chess engines: Komodo and old Mephisto Modules

[Axel]

Hello together,

first of all: Congratulations to picochess - it seems to be really great!

As a newbe to raspberry and picochess (which will change - I'll get my Raspberry 2 B today ;-) ) I have 3 questions:

• Is it possible to use the latest Komodo engine (version 9.2) with picochess?
• Is it possible to use uci-versions of these classical mephisto chess computer modules: http://www.top-5000.nl/mephisto.htm ?
• Which image do I have to use: Picochess-RaspberryPiB-v0.45.img.xz oder Picochess-RaspberryPi2-v0.45.img.xz?

Thank you very much in advance!

Best regards

Axel (Germany / Hamburg)

[Raimar Goldschmidt]

Hi Axel,

As a newbe to raspberry and picochess (which will change - I'll get my Raspberry 2 B today ;-) ) I have 3 questions:

• Is it possible to use the latest Komodo engine (version 9.2) with picochess?
• Is it possible to use uci-versions of these classical mephisto chess computer modules: http://www.top-5000.nl/mephisto.htm ?

Let me answer this two questions with one answer. :-)

Short answer: No.

Long answer: Your Raspberry uses a different instruction set as your PC. Its ARM based, Your PC uses most likely a Win32 or an AMD64 instructions set. To make an chess engine run at raspberry you "only" need to compile the source code. With Open Source engines its no problem (e.g. Stockfish/Fruit). However, pre-compiled engines without source code won't run.

• Which image do I have to use: Picochess-RaspberryPiB-v0.45.img.xz oder Picochess-RaspberryPi2-v0.45.img.xz?

I run Picochess-RaspberryPi2-v0.45.img.xz. Connect it to your network and let it update itself.

Have fun with it!

Raimar 

[Axel]

Hi Raimar,

thanks for your fast reply! 

I've just installed the Pi2-Image. Unfortunately I could not connect to the Pi2. There was no bluetooth connection and no acess from the network.

I restarted the Pi2 and then it worked somehow. I could connect via the IP-adress in the browser.

When I connect via SSH and executed: "sudo apt-get install bluez-utils blueman" then bluetooth connection worked. But the clock did not work with the Pi2.

I then installed Putty on my PC (Windows 10) and tried to connect to the Pi2. It worked somehow but I did not find any directories or files I expected (e. g. the picochess directory or the picochess.ini file).

Have I to login as another user (e. g. "picochess.local")? Or is it possible, that the autoupdate was not succesfully done before I restarted the Pi2 (my image had the version 0.45 and the web-interface showed me version 0.51).

Do you have any suggestions?

Best regards

Axel

[Axel]

Hi Raima,

a few reboots have helped! Now most works sufficiently and I already had some fun.

Best regards
Axel

[Axel]

Hi Raimar,

[Günter Stertenbrink]

you could also emulate the x86 instructions by arm instructions.

But that could be slow ... loosing some 100 elo