Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4 4. d4 O-O 5. Bg5 d6 6. Qc2 Nbd7 7. e4 e5 8.
O-O-O Re8 9. Nd5 Ba5 10. dxe5 Nxe5 11. Nxe5 Rxe5 12. Nxf6+ gxf6 13. Bf4 Re8 14.
Rd5 Bb6 15. f3 Be6 16. Rd1 a5 17. Bd3 a4 18. Qe2 a3 19. b3 Bd4 20. Qe1 Bb2+ 21.
Kb1 Be5 22. Bh6 Kh8 23. f4 Bb2 24. Qh4 Rg8 25. e5 f5 26. Bg5 Rxg5 27. fxg5 Bxe5
28. g4 Qd7 29. Rhf1 f6 30. gxf6 f4 31. g5 Bf5 32. Rf3 Bxd3+ 33. Rdxd3 Qf5 34.
Kc1 Qe4 35. Rh3 Re8 36. Qh5 Bb2+ 37. Kc2 Qg2+ 38. Rd2 Qe4+ 39. Rhd3 Rf8 40. Qf3
Qf5 41. h4 Be5 42. Rg2 c6 43. h5 b5 44. Qxc6 bxc4 45. bxc4 Rc8 46. Qd5 f3 47.
g6 fxg2 *
Position (FEN): 2r4k/7p/3p1PP1/3Qbq1P/2P5/p2R4/P1K3p1/8 w - - 0 48
White to move.
Themes: Advanced Pawn Endgame Mate in 1 
Puzzle rating: 1139
Best move: g7#