43 ... Qa4-d1! attacks undef h5-knight, pins f1-bishop to g1-K D Howell vs Carlsen, 2010  (B90) Sicilian, Najdorf, 55 moves, 0-1 16 ... Qd8-d4 forks undef c3-knight, *PINS* f2-rook to g1-king Tiviakov vs Shirov, 2010  (B25) Sicilian, Closed, 31 moves, 0-1 20 Qh4-g3! threatens loose g6-sq, create disc againt undef c3-Q V Iordachescu vs Raul Schmidt, 2010  (C19) French, Winawer, Advance, 19 moves, 1-0 21 .. Qf6-g5! makes disc chain White d2-queen + Black f4-knight Dolmatov vs Yusupov, 1982  (C50) Giuoco Piano, 21 moves, 0-1 79 .. Qe6-d5+ gives check, forms disc chain with undef a8-queen Adams vs Carlsen, 2007  (C96) Ruy Lopez, Closed, 83 moves, 1/2-1/2 28 Qe3-e4! threatens c6-forking sq, pinning chain on undef h7-Q Carlsen vs Nakamura, 2011  (D10) Queen's Gambit Declined Slav, 40 moves, 1-0 Spassky vs Hjartarson, 1988  (A07) King's Indian Attack, 24 moves, 1-0 21 Qd2-g5! creates pinning chain, attacks Black e5-pawn S Ter-Sahakyan vs J K Duda, 2013  (C95) Ruy Lopez, Closed, Breyer, 92 moves, 1-0 8 games