Chess puzzle (Checkmate)
Opening: English_Opening, English_Opening_Kings_English_Variation
Moves: 1. c4 e5 2. Nc3 Nf6 3. e4 Bb4 4. Nge2 O-O 5. g3 d6 6. Bg2 Be6 7. d3 h6 8. O-O
Qd7 9. Kh1 Bh3 10. Bxh3 Qxh3 11. f4 Ng4 12. Ng1 *
Position (FEN): rn3rk1/ppp2pp1/3p3p/4p3/1bP1PPn1/2NP2Pq/PP5P/R1BQ1RNK b - - 2 12
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 920
Best move: Qxh2#