Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Mason_Variation
Moves: 1. d4 d5 2. Bf4 a6 3. e3 Nc6 4. c4 e6 5. cxd5 Qxd5 6. Nc3 Bb4 7. Bxc7 Bxc3+ 8.
bxc3 Nf6 9. Nf3 Ne4 10. Rc1 Qxa2 11. Bd3 *
Position (FEN): r1b1k2r/1pB2ppp/p1n1p3/8/3Pn3/2PBPN2/q4PPP/2RQK2R b Kkq - 1 11
Black to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1030
Best move: Qxf2#