Hello Andreas,

In that list are the chess computers, with Hitachi H8 microcontroller, of which we don't yet have a picture of the microcontroller.

Most of these H8 microcontrollers include a "ROM serial" in the part number, in the same way as the Hitachi HD6301 family. At the moment our main interest is to document it, because there are chess computer models that have exactly the same microcontroller (with the same internal ROM) as for example Saitek Centurion, Cosmos, Cougar, etc.

Best,
Gerardo