24 Qd5xRd8! destroy crucial Black a8-rook defender of back rank Fressinet vs Macieja, 2008  (C42) Petrov Defense, 24 moves, 1-0 30 ... Rb1xNd1! destroys knight defender of f2-mating square R Rubenchik vs Ashley, 2000  (A30) English, Symmetrical, 30 moves, 0-1 29 ... Ba6xNd3! destroys White d3-knight defender of c5-pawn Motylev vs Navara, 2009  (C41) Philidor Defense, 30 moves, 0-1 39 ... Rf8xBf4! destroys defender of the c1-promotion square Petrosian vs Smyslov, 1959  (D29) Queen's Gambit Accepted, Classical, 39 moves, 0-1 29 .. Rf8xBf4! destroys defender of e3-sq and connecter passers M Fierro vs Yifan Hou, 2009  (C04) French, Tarrasch, Guimard Main line, 31 moves, 0-1 Bologan vs Brunello, 2009  (C84) Ruy Lopez, Closed, 35 moves, 1-0 29 ... Bh3xBf1! destroys f1-bishop defender of g2-mating square Gelfand vs Nakamura, 2010  (E97) King's Indian, 33 moves, 0-1 7 games