Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. h3 Qc7 5. a3 b5 6. Be2 Bb7 7. O-O Nc6 8. d3 h5
9. Be3 Nf6 10. Nb1 Ng4 11. Bd2 Nd4 12. Nxd4 *
Position (FEN): r3kb1r/1bqp1pp1/p3p3/1pp4p/3NP1n1/P2P3P/1PPBBPP1/RN1Q1RK1 b kq - 0 12
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 981
Best move: Qh2#