Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 c6 5. e3 Nbd7 6. Nc3 Qa5 7. cxd5 Nxd5 8.
Qc2 Bb4 9. Rc1 Qxa2 10. Bd3 Bxc3+ 11. bxc3 Qxc2 12. Rxc2 h6 13. Bh4 O-O 14. e4
N5f6 15. O-O b6 16. Bg3 Nh5 17. Bd6 Re8 18. g4 Nhf6 19. h3 Bb7 20. c4 Rec8 21.
e5 Ne8 22. c5 Nxd6 23. exd6 b5 24. g5 hxg5 25. Nxg5 a5 26. f4 g6 27. h4 Nf6 28.
h5 Nxh5 29. Ne4 Rd8 30. Kh2 Kg7 31. Kh3 Nf6 32. Ng5 a4 33. Kg3 a3 34. Ra1 b4
35. Bc4 Ba6 36. Bb3 Bd3 37. Rd2 Ne4+ 38. Nxe4 Bxe4 39. Bc4 Bd5 40. Bxd5 exd5
41. Rd3 Kf6 42. Rb3 Ra4 43. Kg4 Rh8 44. Re3 a2 45. Rb3 Rb8 46. Kf3 Kf5 47. Kg3
Ke4 48. Kg4 f6 49. Rb2 b3 50. Rd1 a1=Q *
Position (FEN): 1r6/8/2pP1pp1/2Pp4/r2PkPK1/1p6/1R6/q2R4 w - - 0 51
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 1308
Best move: Re2#