Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8.
O-O Nxc3 9. bxc3 Bxc3 10. Qb3 Bxa1 11. Bxf7+ Kf8 12. Bg5 Ne7 13. Rxa1 d5 14.
Bxd5 h6 15. Bxe7+ Qxe7 16. Re1 Qd6 17. Ne5 c6 18. Qf3+ Ke7 19. Qf7+ Kd8 20. Nc4
Qxd5 *
Position (FEN): r1bk3r/pp3Qp1/2p4p/3q4/2NP4/8/P4PPP/4R1K1 w - - 0 21
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1425
Best move: Qe7#