Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Nxe4 5. Nxf7 Qh4 6. O-O Nxf2 7. Rxf2 Qxc4
8. Nxh8 Bc5 9. Qh5+ g6 10. Qf3 Nd4 11. Qf6 Ne2+ 12. Kh1 Bxf2 13. Qxf2 Nxc1 14.
d3 Nxd3 15. cxd3 Qc1+ 16. Qg1 Qxb2 17. Qf1 d5 18. Qf7+ Kd8 19. Qxd5+ Bd7 20.
Nf7+ Ke7 21. Nxe5 *
Position (FEN): r7/pppbk2p/6p1/3QN3/8/3P4/Pq4PP/RN5K b - - 0 21
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 1445
Best move: Qc1#