Chess puzzle (Checkmate)
Moves: 1. e4 Nc6 2. d4 e6 3. d5 exd5 4. exd5 Nce7 5. Bc4 d6 6. Qe2 g6 7. Bg5 Bg7 8. c3
Nf6 9. Nf3 Bg4 10. O-O O-O 11. Nbd2 Re8 12. Rfe1 Qd7 13. h3 Bxf3 14. Qxf3 Qf5
15. Bh4 g5 16. Rxe7 Qxf3 17. Rxe8+ Rxe8 18. Nxf3 gxh4 19. Nxh4 Re4 20. Nf5 Rxc4
21. Nxg7 Kxg7 22. Rd1 h5 23. Rd3 Kh6 24. b3 Re4 25. Rf3 Re1+ 26. Kh2 Nxd5 27.
c4 Nb4 28. a3 Nc6 29. Rxf7 Re7 30. Rf6+ Kg7 31. Rf3 Rf7 32. Rg3+ Kh6 33. Kg1
Ne5 34. a4 h4 35. Re3 Kh5 36. f3 Rg7 37. Kf2 b6 38. f4 Nc6 39. Kf3 Rf7 40. Re8
Nd4+ 41. Ke3 Nxb3 42. Rh8+ Kg6 43. Rxh4 Nc5 44. Rg4+ Kf6 45. h4 Re7+ 46. Kf3
Nxa4 47. h5 Rh7 48. Rg6+ Kf5 *
Position (FEN): 8/p1p4r/1p1p2R1/5k1P/n1P2P2/5K2/6P1/8 w - - 3 49
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1541
Best move: g4#