Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. a3 Nf6 7. Be3 Nc6 8. Bd3
Ne5 9. O-O Neg4 10. Qd2 *
Position (FEN): r1b1kb1r/1pqp1ppp/p3pn2/8/3NP1n1/P1NBB3/1PPQ1PPP/R4RK1 b kq - 8 10
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 728
Best move: Qxh2#