Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. g3 Nf6 5. Bg2 Bg4 6. O-O Nbd7 7. h3 Bh5 8.
d3 e6 9. g4 Bg6 10. Nc3 h5 11. g5 Ng8 12. h4 Ne7 13. Bf4 a6 14. Ne5 Nxe5 15.
Bxe5 Nf5 16. Bg3 Bb4 17. Ne2 Qb6 18. c3 Be7 19. b3 Nxg3 20. Nxg3 Bd6 21. d4
Bxg3 22. fxg3 Qc7 23. Kh2 Qxc3 24. Re1 O-O 25. Rc1 Qd3 26. Qxd3 Bxd3 27. Rc7
Rab8 28. Bf3 g6 29. g4 hxg4 30. Bxg4 Be4 31. Kg3 Rfc8 32. Rec1 Rd8 33. h5 gxh5
34. Bxh5 Rf8 35. Re7 b5 36. Rcc7 Bb1 37. Bxf7+ Kh8 38. Bxe6 Rbd8 39. Rh7+ Bxh7
40. Rc6 Rg8 41. Bxg8 Rxg8 42. Kh4 Ra8 43. Kh5 Ra7 44. g6 Bg8 45. Kh6 a5 46. a3
a4 47. b4 Rb7 48. Rf6 Re7 49. Rf4 Re8 *
Position (FEN): 4r1bk/8/6PK/1p1p4/pP1P1R2/P7/8/8 w - - 5 50
White to move.
Themes: Advanced Pawn Endgame Mate in 1 
Puzzle rating: 798
Best move: g7#