17 c3-c4! entices Black e6-bishop onto line of c7-queen for pin Smyslov vs Denker, 1946  (B24) Sicilian, Closed, 52 moves, 1-0 Shirov vs Carlsen, 2011  (C65) Ruy Lopez, Berlin Defense, 60 moves, 0-1 27 e5-e6! will make line up a piece with Black g8-king for pin Grischuk vs V Gashimov, 2010  (A62) Benoni, Fianchetto Variation, 40 moves, 1-0 Fischer vs S Schweber, 1970  (C18) French, Winawer, 47 moves, 1-0 4 games