Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. g3 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Bg2 Ngxe5 7. Nxe5 Nxe5
8. O-O d6 9. Nc3 O-O 10. Nd5 c6 11. Nf4 Bg4 12. Qd2 Nf3+ 13. Bxf3 Bxf3 14. b4
Bb6 15. Bb2 Qd7 16. Qc3 f6 17. h4 Rae8 18. Rfe1 d5 19. h5 Bc7 20. h6 g5 21. Kh2
Qg4 22. Nh3 Re4 23. b5 Qxh3+ 24. Kxh3 Rh4+ 25. gxh4 *
Position (FEN): 5rk1/ppb4p/2p2p1P/1P1p2p1/7P/2Q1Pb1K/PBP2P2/R3R3 b - - 0 25
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1344
Best move: g4#