Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Lolli_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxd4 exd4 5. Qxd4 d6 6. Nc3 Be6 7. e5 dxe5 8.
Qxe5 Bd6 9. Qxg7 Qf6 10. Qxf6 Nxf6 11. Nb5 O-O-O 12. Nxa7+ Kb8 13. Nb5 Bb4+ 14.
c3 Bc5 15. b4 Bb6 16. a4 Rhe8 17. a5 Bb3+ 18. Be2 *
Position (FEN): 1k1rr3/1pp2p1p/1b3n2/PN6/1P6/1bP5/4BPPP/R1B1K2R b KQ - 2 18
Black to move.
Themes: Pin Middlegame Mate in 1 
Puzzle rating: 1409
Best move: Rd1#