Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2
Bb7 9. g4 d5 10. exd5 Nxd5 11. Nxc6 Bxc6 12. Nxd5 Qxd5 13. Qxd5 Bxd5 14. Kf2
Rc8 15. Bd3 Be7 16. a4 bxa4 17. Rxa4 Bf6 18. b3 O-O 19. Rxa6 Rc3 20. h4 Bxb3
21. g5 Bxc2 22. gxf6 Bxd3 23. fxg7 Rfc8 24. Ra2 h5 25. Rha1 Bg6 26. Ra8 Rc2+
27. Kg3 Kxg7 28. Rxc8 Rxc8 29. Bd4+ Kh7 30. Ra7 Rc4 31. Bf2 Kg7 32. Kg2 Bf5 33.
Bg3 Rc2+ 34. Kg1 Bh3 35. Be5+ Kg6 36. Ra8 Rg2+ 37. Kh1 Re2 38. Rg8+ Kf5 *
Position (FEN): 6R1/5p2/4p3/4Bk1p/7P/5P1b/4r3/7K w - - 20 39
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 509
Best move: Rg5#