Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 b6 8. O-O
Ba6 9. Bxa6 Nxa6 10. a4 Nab8 11. a5 Nc6 12. axb6 axb6 13. Rxa8 Qxa8 14. dxc5
bxc5 15. c4 Ncxe5 16. Nxe5 Nxe5 17. cxd5 Qxd5 18. Qa4+ Nd7 19. Nc4 O-O 20. Rd1
Qa8 21. Qxa8 Rxa8 22. Rxd7 Ra1 23. Rd1 f5 24. f4 Bf6 25. Kf1 Ra4 26. b3 Ra1 27.
Ke2 Kf7 28. Be3 Ra2+ 29. Rd2 Ra1 30. Bxc5 Bc3 31. Rc2 Bf6 32. b4 Rb1 33. b5 h6
34. b6 Kg6 35. Nd6 Kh5 36. Nc4 g5 37. fxg5 hxg5 38. h3 e5 39. Nd6 f4 40. Ne4
Bd8 41. Nc3 Rb3 42. Nd5 e4 43. Be7 Bxb6 44. Nxb6 Rxb6 45. Rc5 Rg6 46. Re5 e3
47. Kf3 Kh4 48. Rxg5 Rxg5 49. Kxf4 e2 50. Bxg5+ Kh5 51. Kf5 e1=Q *
Position (FEN): 8/8/8/5KBk/8/7P/6P1/4q3 w - - 0 52
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 783
Best move: g4#