White #21 - Sunday, 13.05.2012

B94 Sicilian Najdorf / Sizilianisch Najdorf Sicilian Defense: Najdorf Variation

Boris Spassky vs. Tigran Vartanovich Petrosian (1-0)

Petrosian - Spassky World Championship Rematch, 1969

r2qrb1k/1p1b2p1/p2ppn1p/8/3NP3/1BN5/PPP3QP/1K3RR1 w - - 0 21