Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 dxc4 5. Bxc4 Be7 6. e4 O-O 7. Nf3 b6 8. O-O
Bb7 9. e5 Nd5 10. Nxd5 Bxd5 11. Bd3 c5 12. Be3 cxd4 13. Bxd4 Nc6 14. Bc3 Nb4
15. Bxb4 Bxb4 16. Bc2 Rc8 17. Rc1 Bxa2 18. Qxd8 Rfxd8 19. Be4 Bd5 20. Bxd5 Rxc1
21. Rxc1 Rxd5 22. Rc8+ Bf8 23. h3 h6 24. Ra8 a5 25. Ra6 Rb5 26. Nd4 Rxb2 27.
Nc6 Bc5 28. Ra8+ Kh7 29. Rb8 Bxf2+ 30. Kh2 a4 31. Ra8 b5 32. Rf8 Kg6 33. Ne7+
Kg5 34. Rxf7 g6 35. Rf6 Bd4 36. Rxg6+ Kf4 37. Rxe6 Bxe5 38. Ng6+ Kf5+ 39. Rxe5+
Kxg6 40. Re6+ Kg7 41. Re7+ Kf6 42. Rb7 a3 43. Rb6+ Kg5 44. Ra6 a2 45. Kg3 b4
46. h4+ Kh5 47. Kh3 b3 *
Position (FEN): 8/8/R6p/7k/7P/1p5K/pr4P1/8 w - - 0 48
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1453
Best move: g4#