Helger: I have not seen any of those games myself. Are the links bogus? Any comments are welcome.
Robsy: Currently looking for more information on this topic. It would be interesting to recover these games.
Shiruf?: The place is legit. I have the ROM file of the second program (although I haven't tried it yet). There are others. I have a Tsumego cartridge right in front of me (google for "MXCP-11006 MSX", although it's usually missing the "-s-").
- Go (Shodan Software, 1985)
robsy: Again, it was advertised in different British magazines, but the actual game is missing. Was it ever published? Any information will be of course welcome.