Mario Bertok vs Lev Polugaevsky - Chigorin Memorial 1966.07.??

Mario Bertok vs Lev Polugaevsky<br>Chigorin Memorial Sochi URS round 8 1966.07.??<br>Catalan Opening: Open Defense, Classical Line 1/2-1/2<br>https://www.chessgames.com/perl/chessgame?gid=1111761 --- Send in a voice message: https://anchor.fm/blindfoldchess/message