Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. Nf3 d5 3. e5 Bg4 4. d4 e6 5. Be2 f6 6. O-O fxe5 7. Nxe5 Bxe2 8.
Qxe2 Bd6 9. c4 Nf6 10. c5 Bc7 11. Bg5 Nbd7 12. b4 Qe7 13. a4 h6 14. Bxf6 gxf6
15. Nxd7 Kxd7 16. b5 Rhg8 17. a5 Rg6 18. Nc3 Rag8 19. g3 h5 20. h4 f5 21. Qxh5
Bxg3 22. fxg3 Rxg3+ 23. Kh2 Qg7 24. Ra2 Rh3+ 25. Kxh3 *
Position (FEN): 6r1/pp1k2q1/2p1p3/PPPp1p1Q/3P3P/2N4K/R7/5R2 b - - 0 25
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1000
Best move: Qg3#