Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 Nxc6 5. Bb5 e6 6. Nf3 Bd6 7. O-O O-O 8.
Bg5 h6 9. Bh4 Be7 10. c3 Nd5 11. Bxe7 Ndxe7 12. Nbd2 a6 13. Bd3 b5 14. Ne4 Bb7
15. Nc5 Rb8 16. a4 bxa4 17. Rxa4 Nd5 18. Qc2 Qd6 19. Nxb7 Rxb7 20. Rxa6 Rfb8
21. b4 Qc7 22. Rfa1 Ncxb4 23. cxb4 Qxc2 24. Bxc2 Nxb4 25. Be4 Nxa6 26. Bxb7
Rxb7 27. Kf1 Nb4 28. Rb1 Rb6 29. Ke2 Nd5 30. Rxb6 Nxb6 31. Kd3 Kf8 32. Ke4 Ke7
33. Ke5 f5 34. Nd2 g5 35. f4 *
Position (FEN): 8/4k3/1n2p2p/4Kpp1/3P1P2/8/3N2PP/8 b - - 0 35
Black to move.
Themes:  Endgame, Knight Endgame Mate in 1 
Puzzle rating: 1655
Best move: Nd7#