Lajos Portisch vs Tigran Vartanovich Petrosian - Petrosian - Portisch Candidates Quarterfinal 1974.02.15

Lajos Portisch vs Tigran Vartanovich Petrosian<br>Petrosian - Portisch Candidates Quarterfinal Palma ESP round 12 1974.02.15<br>Slav Defense 1-0<br>https://www.chessgames.com/perl/chessgame?gid=1107047 --- Send in a voice message: https://anchor.fm/blindfoldchess/message