Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. dxe5 d5 5. Bd3 Bf5 6. Bg5 Be7 7. Bxe7 Qxe7 8.
Nbd2 Nd7 9. O-O O-O 10. Re1 Nxd2 11. Qxd2 Bxd3 12. Qxd3 c6 13. Rad1 Nc5 14. Qe3
Ne4 15. c4 Rad8 16. Nd4 Qxe5 17. f3 c5 18. Nb3 dxc4 19. Nxc5 Qxc5 20. Rxd8
Qxe3+ 21. Rxe3 Rxd8 22. Rxe4 Rd1+ 23. Kf2 Rd2+ 24. Kg3 f6 25. Rxc4 Rxb2 26. a3
b5 27. Rc7 a5 28. Ra7 a4 29. Rb7 Rb3 30. Kf4 Rxa3 31. Rxb5 Ra2 32. Kg3 g6 33.
h4 f5 34. Rb4 a3 35. Rb3 Ra1 36. Kf4 a2 37. g3 Kg7 38. Ra3 Kh6 39. Ra7 Re1 40.
Rxa2 Kh5 41. Ra5 h6 42. g4+ Kxh4 43. gxf5 *
Position (FEN): 8/8/6pp/R4P2/5K1k/5P2/8/4r3 b - - 0 43
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1031
Best move: g5#