Chess puzzle (Checkmate)
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. a4 a5 5. g3 e5 6. Nge2 Be7 7. Bg2 O-O 8. h3 Na6
9. O-O Nb4 10. Be3 Qc7 11. Qd2 b6 12. f4 Ba6 13. Rf2 Rad8 14. g4 exd4 15. Nxd4
d5 16. e5 Ne4 17. Nxe4 dxe4 18. Qe1 c5 19. Nf5 Bb7 20. Ng3 Bh4 21. Re2 g5 22.
Kh2 f6 23. Qc1 gxf4 24. Bxf4 fxe5 25. Bg5 Bxg5 26. Qxg5+ Qg7 27. Nxe4 Bxe4 28.
Qxg7+ Kxg7 29. Bxe4 Rf4 30. c3 Na6 31. Bf5 Nb8 32. Rxe5 Rd2+ 33. Kg3 Rff2 34.
Re8 Nc6 35. Re6 Nd8 36. Rxb6 Nf7 37. Re1 Rg2+ 38. Kh4 Rxb2 39. Rxb2 Rxb2 40.
Re7 Kf6 41. Rc7 Rb3 42. Rc6+ Ke7 43. Rxc5 Ra3 44. Rxa5 Rxc3 45. Bxh7 Rc4 46.
Bg6 Nd6 47. Ra7+ Kf6 48. Bh5 *
Position (FEN): 8/R7/3n1k2/7B/P1r3PK/7P/8/8 b - - 6 48
Black to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 803
Best move: Nf5#