Chess puzzle (Checkmate)
Moves: 1. g3 d5 2. Bg2 c6 3. b3 Nf6 4. Bb2 e6 5. h3 Bd6 6. a3 O-O 7. g4 Nbd7 8. e3 Re8
9. Nc3 a6 10. g5 Ne4 11. Nxe4 dxe4 12. h4 f5 13. gxf6 Nxf6 14. Ne2 e5 15. Ng3
Bg4 16. Qc1 Bf3 17. Bxf3 exf3 18. d3 e4 19. dxe4 Nxe4 20. Nxe4 Rxe4 21. Qd1 Qe7
22. Qxf3 Rf8 23. Qg2 g6 24. h5 g5 25. Rg1 Bf4 26. O-O-O Be5 27. Qxg5+ Kh8 28.
Qxe7 Bxb2+ 29. Kxb2 Rxe7 30. Rg2 Ref7 31. f4 Rf5 32. Rh2 Re8 33. Rh3 b5 34. Rd6
Rc8 35. h6 a5 36. Re6 c5 37. Rg3 c4 38. Rg5 c3+ 39. Kc1 Rxg5 40. fxg5 Rf8 41.
Kd1 b4 42. axb4 axb4 43. e4 Kg8 44. e5 Rf2 45. Rb6 Rd2+ 46. Kc1 Re2 47. Rxb4 *
Position (FEN): 6k1/7p/7P/4P1P1/1R6/1Pp5/2P1r3/2K5 b - - 0 47
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 928
Best move: Re1#