Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. Nc3 cxd4 4. Qxd4 Nc6 5. Qd1 e5 6. e4 Bb4 7. Bd3 O-O 8.
Nf3 Re8 9. Bg5 d6 10. O-O Bxc3 11. bxc3 Bg4 12. h3 Bh5 13. Be2 Bg6 14. Qd3 Rc8
15. Rad1 Na5 16. Qxd6 Qxd6 17. Rxd6 Nxc4 18. Bxc4 Rxc4 19. Bxf6 gxf6 20. Rxf6
Rxe4 21. Rb1 b6 22. Rb5 Rc4 23. Nxe5 Rxc3 24. Nxg6 hxg6 25. a4 Rc1+ 26. Kh2 Ra1
27. Rf4 Re2 28. f3 Kg7 29. Kg3 Raa2 30. Kh4 Rxg2 31. Rd5 Rae2 32. Rd7 Re8 33.
Rfxf7+ Kg8 34. Rxa7 g5+ 35. Kh5 Rh2 36. Rg7+ Kh8 37. Rh7+ Kg8 38. Kxg5 Rg2+ 39.
Kf4 Rg6 40. Rhb7 Rf8+ 41. Ke3 Re8+ 42. Kf2 Rc8 43. h4 Rc2+ 44. Ke1 *
Position (FEN): 6k1/RR6/1p4r1/8/P6P/5P2/2r5/4K3 b - - 2 44
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 991
Best move: Rg1#