Zoltan Ribli vs Rainer F A Knaak - Leipzig DSV 1973.10.22

Zoltan Ribli vs Rainer F A Knaak<br>Leipzig DSV Leipzig GDR round 9 1973.10.22<br>Colle System: Rhamphorhynchus Variation 1/2-1/2<br>https://www.chessgames.com/perl/chessgame?gid=1471365 --- Send in a voice message: https://anchor.fm/blindfoldchess/message