Chess puzzle (Checkmate)
Opening: Nimzowitsch_Defense, Nimzowitsch_Defense_Other_variations
Moves: 1. e4 Nc6 2. Bc4 Nf6 3. Nc3 e6 4. Nf3 d5 5. exd5 exd5 6. Bb3 d4 7. Ne2 Bg4 8.
d3 Bb4+ 9. c3 dxc3 10. bxc3 Ba5 11. Qd2 Bxf3 12. Qe3+ Be4 13. dxe4 Qe7 14. O-O
Nxe4 15. f3 Nxc3 16. Qd3 Nxe2+ 17. Kh1 O-O 18. Bc2 Nb4 *
Position (FEN): r4rk1/ppp1qppp/8/b7/1n6/3Q1P2/P1B1n1PP/R1B2R1K w - - 4 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 824
Best move: Qxh7#