Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d3 Nf6 5. h3 Nc6 6. Nf3 Ne5 7. Nxe5 Qxe5+ 8.
Be3 Nd5 9. Qf3 e6 10. Be2 Be7 11. O-O O-O 12. Nd2 Bd6 13. Nc4 *
Position (FEN): r1b2rk1/pp3ppp/3bp3/2pnq3/2N5/2PPBQ1P/PP2BPP1/R4RK1 b - - 7 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 871
Best move: Qh2#