Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Richter-Rauzer_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8.
O-O-O a6 9. f4 Qc7 10. Kb1 b5 11. Nxc6 Qxc6 12. e5 dxe5 13. fxe5 Ng4 14. Qd8+
Bxd8 *
Position (FEN): r1bbk2r/5ppp/p1q1p3/1p2P1B1/6n1/2N5/PPP3PP/1K1R1B1R w kq - 0 15
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 540
Best move: Rxd8#