Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. e3 e6 3. c4 c6 4. Nf3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. a3 Bxc3 8. Bxc3
Ne4 9. cxd5 cxd5 10. Bd3 Nxc3 11. bxc3 Qa5 12. Qb3 b6 13. O-O Bd7 14. Ne5 Ba4
15. Qb2 Nc6 16. Nd7 Rfc8 17. Ne5 Nxe5 18. dxe5 Rxc3 19. Qb1 Rac8 20. Bxh7+ Kh8
21. Bd3 Bc2 22. Bxc2 Rxc2 23. Ra2 Qd2 24. Rxc2 Qxc2 25. Qxc2 Rxc2 26. Ra1 Rc4
27. a4 a5 28. f4 Rc3 29. Kf2 Rb3 30. g4 Kh7 31. h4 Kg6 32. h5+ Kh6 33. Rh1 Ra3
34. g5+ Kh7 35. h6 g6 36. Rb1 Rxa4 37. Rxb6 Ra2+ 38. Kf3 a4 39. Ra6 a3 40. Ra7
Kg8 41. Ra8+ Kh7 42. Ra7 Kg8 43. Kg3 Ra1 44. Ra8+ Kh7 45. Ra7 a2 46. Rxf7+ Kg8
47. Rg7+ Kh8 48. Rxg6 Rg1+ 49. Kh4 a1=Q 50. Rxe6 Qe1+ 51. Kh5 Qe2+ 52. Kg6 Qxe3
*
Position (FEN): 7k/8/4R1KP/3pP1P1/5P2/4q3/8/6r1 w - - 0 53
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 420
Best move: Re8#