Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nc3 a6 3. g3 e6 4. Bg2 Nc6 5. d3 b5 6. f4 Bb7 7. Nf3 Qc7 8. O-O h5
9. Be3 Nf6 10. h3 Be7 11. e5 Ng8 12. Ne4 Nh6 13. Nxc5 Nf5 14. Nxb7 Nxe3 15.
Nd6+ Bxd6 16. exd6 Qb6 17. Qe2 Nxc2+ 18. Kh2 N2d4 19. Nxd4 Qxd4 20. Bxc6 dxc6
21. Rac1 Kd7 22. Qe5 Qxe5 23. fxe5 Rhf8 24. Rf4 f6 25. Rcf1 f5 26. g4 hxg4 27.
hxg4 g6 28. gxf5 Rxf5 29. Rxf5 gxf5 30. Rg1 Rh8+ 31. Kg2 Rg8+ 32. Kf2 Rxg1 33.
Kxg1 c5 34. b3 b4 35. Kf2 a5 36. Ke3 Kc6 37. d4 cxd4+ 38. Kxd4 Kd7 39. Kc4 Kc6
40. Kd4 Kb6 41. Ke3 Kc6 42. Kf4 Kd7 43. Kg5 Ke8 44. Kf6 f4 45. Kxe6 f3 46. d7+
Kd8 47. Kd6 f2 48. e6 f1=Q *
Position (FEN): 3k4/3P4/3KP3/p7/1p6/1P6/P7/5q2 w - - 0 49
White to move.
Themes: Advanced Pawn Endgame, Queen Endgame Mate in 1 
Puzzle rating: 471
Best move: e7#