9.a4 Spassky vs Fischer, 1972  (B04) Alekhine's Defense, Modern, 74 moves, 0-1 44.a6, or, rather, the lack there of M Ronteltap / Allies vs R Barber / Allies, 2006   (B53) Sicilian, 55 moves, 1/2-1/2 35...a1=Q Fischer vs Petrosian, 1959  (B11) Caro-Kann, Two Knights, 3...Bg4, 48 moves, 1/2-1/2 36.axb5 Deep Blue vs Kasparov, 1997  (C93) Ruy Lopez, Closed, Smyslov Defense, 45 moves, 1-0 1...a6 Karpov vs Miles, 1980   (B00) Uncommon King's Pawn Opening, 46 moves, 0-1 5 games