Hello,

As you may know, Saitek marketed many chess computers with the same program by Frans Morsch. The most "repeated" case is that of chess computers with Hitachi HD6433214A20P (H8/3214). The ROM Serial is "A20". We have found this MCU in at least these models:

• Saitek Centurion (10 MHz)
• Saitek Cosmos (10 MHz)
• Saitek Cougar (16 MHz)
• Mephisto Mystery (12 MHz)
• Saitek "Mephisto" Chess Challenger (10 MHz)
• Saitek "Mephisto" Explorer Pro (16 MHz)
• Saitek "Mephisto" Expert Travel Chess (10 MHz)

If we dump the rom of this microcontroller, we could have all of them emulated on MAME.

So... If anyone has a unit in bad condition that they want to get rid of, no matter if it is defective (it's unlikely that the microcontroller is faulty), please contact me, because I have been trying for days to get one at a good price for this job and I can't get it. I will pay for it (somewhat reasonably) as well as the shipping costs.

Best

Edit: Achim has now confirmed to me the clock frequencies of the chess computers that I have not been able to check for myself.