Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O Qc7 7. c4 Nc6 8. Nb3
Be7 9. Be3 O-O 10. Nc3 b6 11. Kh1 Ne5 12. Rc1 Neg4 13. Bd2 *
Position (FEN): r1b2rk1/2qpbppp/pp2pn2/8/2P1P1n1/1NNB4/PP1B1PPP/2RQ1R1K b - - 5 13
Black to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 870
Best move: Qxh2#