Hello everyone!

I have to ask about this picture:
https://www.schach-computer.info/wik...-Mainboard.jpg

The rightmost chip is marked as GAL but all models of this type that I saw have about 14-22pins while this one has 64 and it looks more like a HITACHI H8 or some kind of... Also these special functions of TurboKing as storing user's games / opening lines cant be handle with installed ordinar ROMs / RAMs, if I understand this stuff correctly.
So Im very confused what is the type of this chip? The information is required for tuning because currently it allows only 6Mhz to run - with higher frequency quartz it doesnt want to work (faster EPROMS already set)...

Thanks in advance!