Fischer vs. Petrosian!

In this game, Robert Fischer battles Tigran Petrosian playing the King's Indian Defence: Six Pawns Attack. Even though Fischer missed 21... Bxf4 22. Rxf4 Nf2+ which would make for an easier win... After 36... Qf2 there was no hope for Petrosian. Play continued until 42... Rxg2 where White resigns!