Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bg5 Nc6 7. Qd2 b5 8.
Nxc6 dxc6 9. O-O-O c5 10. Bxb5+ axb5 11. Nxb5 Qb6 12. Qd8+ Qxd8 *
Position (FEN): r1bqkbnr/5ppp/4p3/1Np3B1/4P3/8/PPP2PPP/2KR3R w kq - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1208
Best move: Rxd8#