Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 Bg4 5. cxd5 cxd5 6. Qb3 Bxf3 7. gxf3 b6 8.
Rg1 e6 9. e3 Nbd7 10. Bd2 Bd6 11. Rxg7 Bxh2 12. f4 Rg8 13. Rxg8+ Nxg8 14. O-O-O
Qh4 15. Be1 Bxf4 16. exf4 Qxf4+ 17. Rd2 Ngf6 18. Bb5 Rc8 19. Kb1 Ne4 20. Nxe4
Qxe4+ 21. Qd3 Qxe1+ 22. Rd1 Qe4 23. Qxe4 dxe4 24. d5 exd5 25. Rxd5 Rd8 26. Re5+
Kf8 27. Rxe4 Nc5 28. Rh4 Kg7 29. Rg4+ Kh8 30. a3 Ne6 31. Rh4 Rd1+ 32. Ka2 Rg1
33. f4 Nf8 34. Bc4 Ng6 35. Rh2 Nxf4 36. Bxf7 Nd3 37. Bc4 Nc1+ 38. Kb1 Ne2+ 39.
Kc2 Rc1+ 40. Kb3 Nd4+ 41. Kb4 a5+ 42. Ka4 Rb1 43. b4 axb4 44. axb4 Ra1+ 45. Ba2
b5+ 46. Ka3 Nc6 47. Rg2 Rf1 *
Position (FEN): 7k/7p/2n5/1p6/1P6/K7/B5R1/5r2 w - - 4 48
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 444
Best move: Rg8#