Mikhail Botvinnik vs Predrag Ostojic - Belgrade 1969.12.??

Mikhail Botvinnik vs Predrag Ostojic<br>Belgrade Belgrade YUG round 9 1969.12.??<br>Modern Defense: Averbakh System 1-0<br>https://www.chessgames.com/perl/chessgame?gid=1032799 --- Send in a voice message: https://anchor.fm/blindfoldchess/message