Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. e4 dxe4 3. Ng5 Nf6 4. d3 exd3 5. Bxd3 Nc6 6. O-O e5 7. Be3 Bd6 8.
Nc3 O-O 9. a3 h6 10. Nf3 Be6 11. Qd2 Nd5 12. Bxh6 gxh6 13. Qxh6 Nf6 14. Ne4 Ng4
15. Qh5 f5 16. Nxd6 cxd6 17. Ng5 Qe7 18. Qg6+ Kh8 19. Nxe6 Qh7 20. Qxh7+ Kxh7
21. Nxf8+ Rxf8 22. h3 Nh6 23. Kh2 e4 24. Bc4 Nd4 25. c3 Nc6 26. Rad1 Rd8 27. f3
Ne5 28. Bd5 exf3 29. gxf3 f4 30. Bxb7 Rb8 31. Be4+ Kg7 32. Rxd6 Rxb2+ 33. Kh1
Nhf7 34. Ra6 Rb3 35. Rc1 Ng5 36. Rxa7+ Kf6 37. Bd5 Rb2 38. h4 Ngxf3 39. Bxf3
Nxf3 40. Rf1 *
Position (FEN): 8/R7/5k2/8/5p1P/P1P2n2/1r6/5R1K b - - 1 40
Black to move.
Themes:  Endgame Arabian Mate, Mate in 1 
Puzzle rating: 670
Best move: Rh2#