Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 Qc7 7. Bg2 Nf6 8. O-O
d6 9. Be3 Bd7 10. Qe2 Be7 11. Rad1 O-O 12. f4 Rfe8 13. Nb3 b5 14. a3 b4 15.
axb4 Nxb4 16. e5 dxe5 17. Bxa8 Rxa8 18. fxe5 Qxe5 19. Bd4 Qxe2 20. Nxe2 Bb5 21.
Bxf6 Bxf6 22. Rd2 Bg5 23. Nf4 Bxf1 24. Kxf1 Bxf4 25. gxf4 g6 26. c3 Nd5 27. Rf2
Rb8 28. Nc5 a5 29. Kg2 Ne3+ 30. Kf3 Nd1 31. Rd2 Nxb2 32. Nd7 Rb3 33. Kg4 Rxc3
34. Rxb2 Kg7 35. Ra2 h5+ 36. Kh4 Rf3 37. Ra4 f6 38. Nc5 e5 39. fxe5 Kh6 40.
exf6 *
Position (FEN): 8/8/5Ppk/p1N4p/R6K/5r2/7P/8 b - - 0 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 975
Best move: g5#