Chess puzzle (Checkmate)
Opening: Czech_Defense, Czech_Defense_Other_variations
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. f4 Qa5 5. Bd3 e5 6. dxe5 dxe5 7. f5 Bc5 8. Nf3
Ng4 9. Rf1 Bd4 10. Bd2 Qb6 11. Rb1 Bf2+ 12. Rxf2 *
Position (FEN): rnb1k2r/pp3ppp/1qp5/4pP2/4P1n1/2NB1N2/PPPB1RPP/1R1QK3 b kq - 0 12
Black to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 707
Best move: Qxf2#