Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Nbd2 a6 6. g3 b5 7. b3 Nbd7 8. Bg2
Be7 9. O-O O-O 10. e4 Bb7 11. e5 Ne8 12. cxd5 cxd5 13. h4 Rc8 14. Qd3 Nc7 15.
h5 Na8 16. h6 g6 17. Re1 Nab6 18. Nf1 b4 19. Bf4 Rc3 20. Qd2 Qc7 21. Ne3 Rc8
22. Bf1 a5 23. Bd3 Qb8 24. Ng4 Qa8 25. Bg5 Bf8 26. Rad1 Ba6 27. Bxa6 Qxa6 28.
Qf4 Rc2 29. Bf6 Qb7 30. Ng5 Nb8 31. Bg7 Bxg7 32. hxg7 Qe7 33. Nf6+ Kxg7 34.
Ngxh7 Rh8 35. Ng5 N8d7 36. Ng4 Rh5 37. Nf3 Rc8 38. Kg2 Rch8 39. Rh1 Rf5 40. Qe3
Rhh5 41. Rc1 Qd8 42. Rxh5 Rxh5 43. Rc6 Rh8 44. Qf4 Qe7 45. Ng5 Rh5 46. Nf3 Rh8
47. Rc7 Qd8 48. Ra7 Qb8 49. Rxa5 Qc7 50. Nf6 Nc4 51. Nxd7 Nxa5 52. Qf6+ Kg8 53.
Nc5 Nc6 54. Nxe6 Qe7 *
Position (FEN): 6kr/4qp2/2n1NQp1/3pP3/1p1P4/1P3NP1/P4PK1/8 w - - 1 55
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 880
Best move: Qg7#