19 e4-e5! Black d6-pawn defender must blockade White d5-pawn Korchnoi vs Tal, 1962  (A62) Benoni, Fianchetto Variation, 54 moves, 1-0 NOT! Nepomniachtchi vs Zherebukh, 2012  (B90) Sicilian, Najdorf, 40 moves, 1/2-1/2 N Firman vs McShane, 2012  (C65) Ruy Lopez, Berlin Defense, 60 moves, 0-1 K Bischoff vs M Richter, 2011  (A06) Reti Opening, 78 moves, 1-0 4 games