Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 O-O 8.
Qxe4 Re8 9. Ne5 f6 10. Bd3 g6 11. Qc4 Bd6 12. O-O fxe5 13. f5 gxf5 14. Bxf5
Bxf5 15. Rxf5 Nd7 16. Bg5 Be7 17. d6+ Kg7 18. dxe7 Qc8 19. Qg4 Kh8 20. Rxe5 c6
21. Qf5 Nxe5 22. Qxe5+ Kg8 23. Bh6 Qg4 24. Nc3 Qg6 25. Bf8 Rxf8 26. exf8=Q+
Rxf8 27. Qe4 Qf6 28. h3 Qf2+ 29. Kh1 Rf7 30. Re1 Qg3 31. Qg4+ Qxg4 32. hxg4 Kf8
33. Re2 Rf4 34. g5 Kf7 35. Ne4 Kg6 36. g3 Rf1+ 37. Kg2 Ra1 38. b3 Rxa2 39. Kf3
b5 40. Kg4 a5 41. Nc5 Kf7 42. Ne6 a4 43. Nc5 axb3 44. Nxb3 Ra4+ 45. Kh5 Rc4 46.
Kh6 Rg4 47. Re3 b4 48. Nc5 Rc4 49. Nd3 Rxc2 50. Nxb4 *
Position (FEN): 8/5k1p/2p4K/6P1/1N6/4R1P1/2r5/8 b - - 0 50
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 878
Best move: Rh2#