21 - Nd8 22 Bd7 White d7-bishop controls c8, gives White c-file Alekhine vs A Nimzowitsch, 1930  (C17) French, Winawer, Advance, 30 moves, 1-0 16 Ba6! White a6-bishop controls c8-square, gives White c-file Karpov vs Geller, 1981  (D58) Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst, 33 moves, 1-0 White a5-bishop controls d8 so Black cannot oppose on d-file Kramnik vs Anand, 2007  (E06) Catalan, Closed, 5.Nf3, 53 moves, 1-0 22 ... Bf3 Black gains control of d1-square and hence d-file Carlsen vs Anand, 2007  (D47) Queen's Gambit Declined Semi-Slav, 40 moves, 0-1 26 ... Rb8, 27 ... Rb3 Black g6-bishop controls b1-square Hodgson vs Speelman, 1991 (D00) Queen's Pawn Game, 29 moves, 0-1 18 ... Bc8-g4! Black controls d1-square, controls open d-file Mamedyarov vs Svidler, 2007  (D30) Queen's Gambit Declined, 35 moves, 0-1 25 Bf1-h3 White h3-bishop controling c8 means White owns c-file Petrosian vs Pilnik, 1956  (A56) Benoni Defense, 50 moves, 1-0 7 games