41. b6! solves a Saturday puzzle A Beliavsky vs Kotronias, 2009  (E55) Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation, 53 moves, 1-0 56...Rxb6! prepares 57...d3!! -+ Smyslov vs Botvinnik, 1941  (C77) Ruy Lopez, 60 moves, 0-1 49. Kc3! sets a trap for 49...Rg3+ 50. Kb4 Rxh3?? Korchnoi vs Karpov, 1978  (D35) Queen's Gambit Declined, 71 moves, 1-0 3 games