Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 a6 5. f4 d5 6. d3 d4 7. Nce2 f6 8. Nf3 Bd6
9. O-O Nge7 10. c3 e5 11. Qb3 b5 12. Qc2 O-O 13. f5 Kh8 14. Nh4 Rg8 15. g4 Bd7
16. Rf3 g6 17. Rh3 gxf5 18. Nxf5 Nxf5 19. gxf5 Rg7 20. Qd2 Qe7 21. Ng3 Rg5 22.
Qe2 Rg7 23. Nh5 Rf7 24. Qd2 Rg8 25. Qh6 Qf8 26. Nxf6 Qxh6 27. Rxh6 Rgg7 28. Nd5
Rg4 29. Rxd6 Rfg7 30. Rxd7 Rxg2+ 31. Kh1 *
Position (FEN): 7k/3R2rp/p1n5/1ppNpP2/3pP3/2PP4/PP4rP/R1B4K b - - 1 31
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 581
Best move: Rg1#