On of my customers (his name is Neil Mclean) made importers for the games for the most popular Go servers. I can't thank him enough for that.
I hope he doesn't give his sources to the "competition" ;-D
The only thing left to do for me was to figure out which encoding is used, and to display this correctly in Moyo Go Studio. Behold the result!
Neil also downloaded and donated 21,000 of the strongest Tygem games, so you can imagine how happy I am.