Chess puzzle (Checkmate)
Opening: Nimzo-Larsen_Attack, Nimzo-Larsen_Attack_Classical_Variation
Moves: 1. Nf3 d5 2. b3 c5 3. Bb2 Nc6 4. e3 f6 5. c4 e5 6. d4 e4 7. Nfd2 cxd4 8. exd4
Bb4 9. Qh5+ Kf8 10. cxd5 Nce7 11. Bc4 a6 12. d6 Qxd6 *
Position (FEN): r1b2knr/1p2n1pp/p2q1p2/7Q/1bBPp3/1P6/PB1N1PPP/RN2K2R w KQ - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 750
Best move: Qf7#