Chess puzzle (Checkmate)
Opening: Zukertort_Opening, Zukertort_Opening_Other_variations
Moves: 1. Nf3 d5 2. e3 Nc6 3. c4 d4 4. exd4 e5 5. dxe5 f5 6. exf6 Nxf6 7. Be2 Bc5 8.
Nc3 O-O 9. O-O Qd6 10. Na4 Ng4 11. Nxc5 Rxf3 12. Ne4 *
Position (FEN): r1b3k1/ppp3pp/2nq4/8/2P1N1n1/5r2/PP1PBPPP/R1BQ1RK1 b - - 1 12
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 861
Best move: Qxh2#