Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. f4 Bg7 6. Nf3 d6 7. O-O Nf6 8. d3
O-O 9. h3 Rb8 10. Qe1 a5 11. a4 Be6 12. b3 Nd7 13. Bd2 Qb6 14. Kh1 d5 15. e5 f6
16. exf6 Rxf6 17. Ng5 Nf8 18. Rf2 h6 19. Nxe6 Rxe6 20. Qf1 Rf6 21. Re1 Qc7 22.
Rfe2 Re8 23. g3 Qd7 24. Kh2 Ne6 25. Nd1 Nd4 26. Bc3 Rf5 27. Bxd4 Bxd4 28. Re6
Kf7 29. Qe2 Rf6 30. Rxf6+ Bxf6 31. Nf2 h5 32. Nd1 Qf5 33. Ne3 Qd7 34. Ng2 c4
35. dxc4 dxc4 36. Qxc4+ Qd5 37. Qxd5+ cxd5 38. Rd1 Rc8 39. Rxd5 Rxc2 40. Rxa5
h4 41. Rb5 hxg3+ 42. Kxg3 Bd4 43. Nh4 Bf2+ 44. Kg4 Be1 45. Nf3 *
Position (FEN): 8/4pk2/6p1/1R6/P4PK1/1P3N1P/2r5/4b3 b - - 6 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 860
Best move: Rg2#