Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nc6 4. d4 cxd4 5. cxd4 h5 6. Bb5 a6 7. Bxc6+ bxc6 8.
a3 g6 9. Ng5 Bg7 10. Qf3 Nf6 11. e5 Bg4 12. Qf4 dxe5 13. dxe5 *
Position (FEN): r2qk2r/4ppb1/p1p2np1/4P1Np/5Qb1/P7/1P3PPP/RNB1K2R b KQkq - 0 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1157
Best move: Qd1#