16 - Be7-b4+! blocks line from White b3-queen to loose b5-bisho Karpov vs J Polgar, 2003  (E12) Queen's Indian, 33 moves, 0-1 54 Rd6-d5! blocks line from Black a5-queen to loose e5-knight Anand vs Shirov, 2010  (C78) Ruy Lopez, 55 moves, 1-0 20 Rd1-d6! blocks line from Black c6-queen to loose e6-bishop Aronian vs Smeets, 2010  (D10) Queen's Gambit Declined Slav, 37 moves, 1-0 20 ... e4-e3! closes line of life-giving force to the g5-knight Carlsen vs Giri, 2011  (D71) Neo-Grunfeld, 22 moves, 0-1 37 bb6-c7! blocks guard line b7-d7, vacates b6 for knight fork T Sachdev vs J de Jong, 2011  (D39) Queen's Gambit Declined, Ragozin, Vienna Variation, 46 moves, 1-0 24 Rd1-d5! blocks guard line to loose c5-knight, attacks h5-Q Aronian vs Shirov, 2011  (D52) Queen's Gambit Declined, 53 moves, 1-0 20 ... Nc6-d4! cuts off White d5-rook from protecting d1-rook A Timofeev vs Jakovenko, 2012  (D16) Queen's Gambit Declined Slav, 29 moves, 0-1 31 Nd3-e5+!! blocks guard line from Black h2-queen to c7-square Aronian vs F Vallejo Pons, 2012  (D39) Queen's Gambit Declined, Ragozin, Vienna Variation, 33 moves, 1/2-1/2 24 Nh5-f6+! E Postny vs D Zoler, 2013  (A52) Budapest Gambit, 42 moves, 1-0 32 Rd8-d6! breaks communication from Black a6-queen to f6-pawn A Kashlinskaya vs E Paehtz, 2013  (E46) Nimzo-Indian, 36 moves, 1-0 10 games