Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Bd3 Nc6 5. e5 Nd7 6. c3 f6 7. Qh5+ Ke7 8. Ngf3
Qe8 9. Qh4 Qf7 10. O-O Ke8 11. Re1 f5 12. Ng5 Qg6 13. Ndf3 Be7 14. Qh3 h6 15.
Nh4 Qh5 16. Nxe6 Qxh4 17. Nxc7+ Kd8 18. Qxh4 Bxh4 19. Nxa8 Nf8 20. Be3 Be6 21.
f4 Nd7 22. g3 Be7 23. b3 Kc8 24. c4 Kb8 25. cxd5 Bxd5 26. Bxf5 Nf8 27. Bd3 Kxa8
28. f5 Nd7 29. g4 Bg5 30. Bxg5 hxg5 31. Rad1 Nxd4 32. Be4 Bxe4 33. Rxe4 Nf3+
34. Kg2 Ndxe5 35. h3 Nh4+ 36. Kg3 Nc6 37. Rd7 a6 38. Rxg7 Rd8 39. f6 Rd2 40. f7
*
Position (FEN): k7/1p3PR1/p1n5/6p1/4R1Pn/1P4KP/P2r4/8 b - - 0 40
Black to move.
Themes:  Endgame Hook Mate, Mate in 1 
Puzzle rating: 1269
Best move: Rg2#