Kasparov vs Topalov, 1999  (B07) Pirc, 44 moves, 1-0 Tal vs Simagin, 1956  (B07) Pirc, 45 moves, 1-0 W Liu vs J H Donner, 1978  (B07) Pirc, 20 moves, 1-0 V Kovacevic vs Seirawan, 1980  (B07) Pirc, 33 moves, 0-1 K Behting vs A Nimzowitsch, 1910  (B07) Pirc, 50 moves, 0-1 Sax vs H Kestler, 1974  (B07) Pirc, 27 moves, 0-1 6 games