doubled g-pawns Keres vs B Rabar, 1942  (C90) Ruy Lopez, Closed, 32 moves, 1-0 Queen trap followed by mating attack A Parnas vs Tal, 1949  (C91) Ruy Lopez, Closed, 33 moves, 0-1 Open disaster for Korchnoi Karpov vs Korchnoi, 1978  (C80) Ruy Lopez, Open, 28 moves, 1-0 Worrall Attack Spassky vs J H Donner, 1966  (C86) Ruy Lopez, Worrall Attack, 35 moves, 1-0 4 games