Chess puzzle (Checkmate)
Opening: Trompowsky_Attack, Trompowsky_Attack_Other_variations
Moves: 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d6 4. f3 Nf6 5. e4 g6 6. Nc3 Bg7 7. e5 dxe5 8. dxe5
Nh5 9. Qxd8+ Kxd8 10. Rd1+ Ke8 11. Nd5 Nxf4 12. Nxc7+ Kf8 *
Position (FEN): rnb2k1r/ppN1ppbp/6p1/4P3/5n2/5P2/PPP3PP/3RKBNR w K - 1 13
White to move.
Themes:  Opening Back Rank Mate, Mate in 1 
Puzzle rating: 1253
Best move: Rd8#