33 Bb5-c6! gains control of a8-promotion sq of a5-,a6-passers Carlsen vs Y Wang, 2009  (D15) Queen's Gambit Declined Slav, 33 moves, 1-0 24 ... Qe4+ gains control of the b1-promotion square with tempo A Dunkelblum vs Keres, 1937  (A46) Queen's Pawn Game, 22 moves, 0-1 37 ... Ng5! threatens to gain control of g1-promotion square Kasimdzhanov vs A Volokitin, 2003  (E81) King's Indian, Samisch, 37 moves, 0-1 33 Nf4-e6+ ends combination to control the d8-promotion square Gligoric vs B Rabar, 1945  (D51) Queen's Gambit Declined, 37 moves, 1-0 31 ... Bc4-a2! gains control of b1-queening square, wins L Babujian vs Mamedyarov, 2005  (C77) Ruy Lopez, 32 moves, 0-1 White a7-bishop controls b8-promotion square of b7-passed pawn Kramnik vs Leko, 2006  (E32) Nimzo-Indian, Classical, 48 moves, 1-0 42 ... Bf5-c2 gains control of d1-promotion square of d2-passer Onischuk vs Carlsen, 2007  (E20) Nimzo-Indian, 42 moves, 0-1 32 ... Rb4xRb7? 33 c6xb7 White d6-bishop controls b8-promotion Kasparov vs Adams, 1997  (B04) Alekhine's Defense, Modern, 33 moves, 1-0 41 Qc5-d6 Be5-h2! gains control of g1-promotion square, wins Shirov vs Kasparov, 1997  (B90) Sicilian, Najdorf, 40 moves, 0-1 46 Bc3-e5! uses tactic to gain control of b8-promotion square Fischer vs A Di Camillo, 1957  (A07) King's Indian Attack, 49 moves, 1-0 40 Bc5-a7 controls b8-promotion square, winning Black d8-rook Radjabov vs Carlsen, 2008  (C65) Ruy Lopez, Berlin Defense, 43 moves, 1-0 72 Nc5-d7! uses deflection to gain control of b8-promotion sq Mamedyarov vs Bacrot, 2008  (D15) Queen's Gambit Declined Slav, 73 moves, 1-0 61 Nd5-b6! uses tactics to take over c8-promotion square S Volkov vs Y Hou, 2008  (E20) Nimzo-Indian, 61 moves, 1-0 40 Bc2-a4! gains control of e8-promotion square thru b5-rook Morozevich vs E Alekseev, 2008  (A45) Queen's Pawn Game, 40 moves, 1-0 40 Bg2-b7! gains control of c8-promotion square of c7-passer Ivanchuk vs Carlsen, 2008  (D94) Grunfeld, 39 moves, 1-0 36 Bxb2 followed by Bb2-e5 gains control of b8-promotion square N Krogius vs Jansa, 1965  (E60) King's Indian Defense, 36 moves, 1-0 60 Rb6-b8! gains control of the h8-promotion sq of h7-passer Carlsen vs Anand, 2009  (D45) Queen's Gambit Declined Semi-Slav, 77 moves, 1-0 33 Nd4-c6! uses skewer threat to gain control of d8-promotion s H Ni vs A Fier, 2011  (B48) Sicilian, Taimanov Variation, 33 moves, 1-0 35- Re4-d4! and doubled Black rooks gain control of f1-promo sq Gelfand vs Nakamura, 2012  (A88) Dutch, Leningrad, Main Variation with c6, 35 moves, 0-1 19 games