Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Four_Knights_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Be3 Bb4 7. Qd2 Qa5 8.
Bd3 Bxc3 9. bxc3 O-O 10. O-O Ng4 11. Nb3 Qh5 12. Be2 *
Position (FEN): r1b2rk1/pp1p1ppp/2n1p3/7q/4P1n1/1NP1B3/P1PQBPPP/R4RK1 b - - 6 12
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1006
Best move: Qxh2#