36 ... Qxh5! wins a piece by exploiting White's weak back rank Y Erturan vs Potkin, 2001  (C01) French, Exchange, 36 moves, 0-1 Black f8-queen defends back rank b8-square not g7, so 36 Bxg7+! Grischuk vs Sutovsky, 2006  (C83) Ruy Lopez, Open, 36 moves, 1-0 18 Qd8! one back rank defender cannot keep out Q+R battery Unzicker vs K Skold, 1950  (E61) King's Indian, 22 moves, 1-0 White c1-bishop stops a1-rook from defending back rank A Silver vs A Wahono, 2006  (C59) Two Knights, 23 moves, 0-1 25 Qxg6! since Black g8-rook must defend back rank h8-square Spassky vs Evans, 1962  (E80) King's Indian, Samisch Variation, 26 moves, 1-0 29 ... Nd3! White d1-rook must defend a1-checking focal point Gligoric vs Fischer, 1970  (A77) Benoni, Classical, 9...Re8, 10.Nd2, 35 moves, 0-1 29 Re4xBe7! Black d8-queen keeps White g4-queen out of c8 Capablanca vs Spielmann, 1911  (D02) Queen's Pawn Game, 30 moves, 1-0 23 Qg4xRd7! Black d8-rook must defend e8-checking focal point Kasparov vs Karpov, 1985  (E21) Nimzo-Indian, Three Knights, 25 moves, 1-0 20 ... Qh5-e2! wins since 21 Re1xQe2 Rb2-b1+ mates on back rank Bacrot vs Anand, 2001  (E20) Nimzo-Indian, 21 moves, 0-1 26 Nc6-d4?? Bc5xNd4 White d1-rook tied down to weak e1-square Tarrasch vs Lasker, 1908  (C49) Four Knights, 26 moves, 0-1 17 Bc4xf7+! Black f8-rook must defend e8-back rank square V Soldatenkov vs S Durnovo, 1898  (C21) Center Game, 24 moves, 1-0 34 - Qd5-d1+! mates since Black e5-bishop covers h2-luft square G Mammadova vs O Girya, 2001  (B22) Sicilian, Alapin, 35 moves, 0-1 29 ... Ra8-c8! rook moves for free by threatening mate on c1-sq Onischuk vs Shirov, 2008  (D27) Queen's Gambit Accepted, Classical, 29 moves, 0-1 26 Qb2-e5! explots fact that 26 ... Rd8xNd7?? 27 Qe5-e8+ mates Aronian vs Gelfand, 2008  (E15) Queen's Indian, 26 moves, 1-0 27 Rf4-f2?? traps White g1-king on back rank for 27 .. Qe6xBe4! Korchnoi vs I Krush, 2007  (A28) English, 27 moves, 0-1 24 Qd5xRd8! exploits Black g8-king being trapped on back rank Fressinet vs Macieja, 2008  (C42) Petrov Defense, 24 moves, 1-0 26 ... d4-d3! possible by White g1-king trapped on back rank Sokolsky vs Botvinnik, 1938  (D94) Grunfeld, 40 moves, 0-1 25 Qh4-f2? traps White g1-king on back rank for 25 .. Qc4xBc1+! Colle vs Capablanca, 1929  (A47) Queen's Indian, 34 moves, 0-1 35 Nd6-f5!! traps Black f8-king on back rank by covering e7,g7 Dominguez Perez vs Morozevich, 2009  (B90) Sicilian, Najdorf, 36 moves, 1-0 35 ... Rd8xd6?? utterly fails to exploit White's weak back rank Svidler vs P Nikolic, 2009  (C03) French, Tarrasch, 36 moves, 1-0 Rubelvsky's 26 ... Nf4-h3+!! leads to brilliant back rank mate A Galliamova vs Rublevsky, 1998  (D20) Queen's Gambit Accepted, 26 moves, 0-1 J Tisdall vs Polgar, 1988  (B81) Sicilian, Scheveningen, Keres Attack, 33 moves, 0-1 29 Qc5xRc8+! based on Black g8-king trapped on the back rank Sutovsky vs Kamsky, 2010  (B43) Sicilian, Kan, 5.Nc3, 30 moves, 1-0 Tomashevsky vs Svidler, 2007  (A29) English, Four Knights, Kingside Fianchetto, 45 moves, 1-0 T Kosintseva vs A Stefanova, 2011  (B12) Caro-Kann Defense, 32 moves, 1-0 34 Qb1-f5!! Aronian vs Giri, 2011  (D37) Queen's Gambit Declined, 43 moves, 1-0 Alekhine vs Reshevsky, 1937  (B04) Alekhine's Defense, Modern, 36 moves, 1-0 27 games