Chess puzzle (Checkmate)
Opening: Rapport-Jobava_System, Rapport-Jobava_System_Other_variations
Moves: 1. d4 d5 2. Nc3 Nf6 3. Bf4 Nc6 4. Nb5 e5 5. Bxe5 Nxe5 6. dxe5 Nd7 7. Qxd5 c6 8.
Nd6+ Bxd6 9. Qxd6 Qa5+ 10. c3 Nxe5 11. Nf3 Nc4 12. O-O-O Qxa2 *
Position (FEN): r1b1k2r/pp3ppp/2pQ4/8/2n5/2P2N2/qP2PPPP/2KR1B1R w kq - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 957
Best move: Qd8#