25 Ng5xf7! Black f8-rook defends c8-rook from White h3-queen Keres vs Fine, 1946  (A34) English, Symmetrical, 32 moves, 1-0 25 e6-e7! Black d8-queen defends a8-rook from White b7-queen K Shirazi vs C Kleijn, 2006  (B21) Sicilian, 2.f4 and 2.d4, 29 moves, 1-0 33 Rg6xg7! Black g8-rook must protect c8-rook from the b7-queen Ivanchuk vs Fridman, 2011  (D30) Queen's Gambit Declined, 40 moves, 1-0 22 Bd5xf7+! f8-rook must guard the d8-rook, g8-king no defender Le Quang Liem vs D Xiu, 2011  (D38) Queen's Gambit Declined, Ragozin Variation, 43 moves, 1-0 34 Rc7xf7! Koneru vs X Zhao, 2012  (E15) Queen's Indian, 51 moves, 1-0 5 games