Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nf6 3. Nf3 Bf5 4. e3 c6 5. c4 e6 6. Nc3 Bb4 7. a3 Bxc3+ 8. bxc3
O-O 9. Bd3 Qa5 10. Qd2 Ne4 11. Bxe4 Bxe4 12. cxd5 cxd5 13. O-O Bxf3 14. gxf3
Nd7 15. Kh1 Nf6 16. Rg1 Nh5 17. Bh6 Kh8 18. Rg5 gxh6 19. Rxh5 Rg8 20. Rxh6 Rg7
21. Rh3 Rag8 22. Rg3 Qd8 23. e4 Qf6 24. Qe2 Rc8 25. Rag1 Rxg3 26. Rxg3 Rxc3 27.
Qb5 Rc1+ 28. Kg2 Qe7 29. exd5 a6 30. Qa5 Qc7 31. Qxc7 Rxc7 32. dxe6 fxe6 33. f4
Rd7 34. Rd3 Kg7 35. Kf3 Kf6 36. Ke4 Rd5 37. Rh3 h5 38. Rc3 Rd7 39. Rc8 Rg7 40.
Rf8+ Ke7 41. Rh8 Rg2 42. Rxh5 Rxf2 43. Ke5 *
Position (FEN): 8/1p2k3/p3p3/4K2R/3P1P2/P7/5r1P/8 b - - 1 43
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 849
Best move: Re2#