Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Lasker-Pelikan_Variation
Moves: 1. e4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Ndb5 d6 7. Be3 a6 8.
Na3 b5 9. Nd5 Nxe4 10. Qf3 f5 11. Bb6 Qg5 12. Nc7+ Kd7 13. Nxa8 *
Position (FEN): N1b2b1r/3k2pp/pBnp4/1p2ppq1/4n3/N4Q2/PPP2PPP/R3KB1R b KQ - 0 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 837
Best move: Qd2#