Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. f4 Qh4+ 3. g3 Qe7 4. Nf3 exf4 5. d3 fxg3 6. Bf4 gxh2 7. Nbd2 d6 8.
Rxh2 Be6 9. Qe2 Nd7 10. Nd4 a6 11. Nxe6 fxe6 12. Bh3 h6 13. O-O-O O-O-O 14. Kb1
Kb8 15. Nc4 g5 16. Be3 c5 17. c3 Bg7 18. d4 d5 19. Na5 cxd4 20. cxd4 dxe4 21.
Qc2 Rc8 22. Qb3 Rc7 23. Rf2 Qd6 24. Bf1 Ne7 25. Rfd2 Rhc8 26. Bg1 Nc6 27. Nc4
Qd5 28. Ne3 Qxb3 29. axb3 Nb4 30. Bh2 e5 31. Nf5 Bf6 32. Nd6 Rf8 33. Nxe4 Bg7
34. dxe5 Nxe5 35. Rd8+ Rxd8 36. Rxd8+ Rc8 37. Rd7 Bh8 38. Re7 Nc6 39. Nd6 Rd8
40. Rxb7+ Ka8 41. Rh7 Rxd6 42. Rxh8+ Kb7 43. Rh7+ Kb6 44. Bg1+ Nd4 45. Bg2 g4
46. Be4 Nf3 47. b4 Nxg1 *
Position (FEN): 8/7R/pk1r3p/8/1P1nB1p1/8/1P6/1K4n1 w - - 0 48
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 880
Best move: Rb7#