Jan Timman vs Jan M Greben - Amsterdam IBM III 1967.??.??

Jan Timman vs Jan M Greben<br>Amsterdam IBM III Amsterdam NED round 7 1967.??.??<br>King's Indian Defense: Sämisch Variation 0-1<br>https://www.chessgames.com/perl/chessgame?gid=1141715 --- Send in a voice message: https://anchor.fm/blindfoldchess/message