Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3 c6 7. Be2 Bf5 8. O-O
a6 9. c5 Nfd7 10. Nh4 e5 11. Nxf5 gxf5 12. Bg3 e4 13. f3 Qg5 14. fxe4 fxe4 15.
Bf4 Qe7 16. Bg4 Re8 17. Qe1 Nf6 18. Be2 Nbd7 19. Qg3 Kh8 20. Bg5 Rg8 21. Qh4
Qe6 22. Rf2 Ne8 23. Raf1 Qg6 24. Kh1 Bxd4 25. exd4 Qxg5 26. Qxg5 Rxg5 27. Rxf7
Rd8 28. Nd1 Ng7 29. Ne3 Nh5 30. g3 b6 31. b4 bxc5 32. bxc5 Nb8 33. Rb7 Rdg8 34.
Rff7 R5g7 35. Bxh5 Rxf7 36. Rxf7 a5 37. Nf5 Na6 38. Nd6 Nb4 39. Ra7 Nd3 40.
Nf7+ Kg7 41. Ne5+ Kh6 42. g4 Ne1 43. Bf7 Rf8 44. Nxc6 Kg7 45. Bxd5+ Kh8 46.
Bxe4 *
Position (FEN): 5r1k/R6p/2N5/p1P5/3PB1P1/8/P6P/4n2K b - - 0 46
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 670
Best move: Rf1#