Tigran Petrosian's Immortal Chess Game vs Spassky - Hijacking diagonals! Queen Sac! - Brilliancy!

Tactics Time Newsletters. Vol.3 Chess Tactics From The Real Games of Everyday Chess Players, PDF, Board Games

Fischer vs Petrosian: The Immortal Game Of Four Queens

Match of the Century & Spassky's Immortal: 50 years on

The Complete Guide to Attacking Chess

Why do piece sacrifices work in high-level chess, where presumably the other player can see why his or her opponent is sacrificing a piece? - Quora

Tigran V Petrosian vs Boris Spassky (1966) Boris Bad and Off

How common is queen sacrifice in chess? And early queen sacrifice? - Quora

Spectator columns from 24 March 2001 onwards - with column text

Tigran Petrosian Sacrifices THE ROOoOoOOK!!! (and queen)

Petrosian's World Championship Immortal! - Best Of The 60s - Petrosian vs. Spassky, 1966

Tigran Petrosian's Immortal Chess Game vs Spassky - Hijacking diagonals! Queen Sac! - Brilliancy!