Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c5 3. dxc5 e6 4. cxd5 exd5 5. Nf3 Bxc5 6. Bg5 Nf6 7. e3 Be6 8.
Nc3 Bb4 9. Qd4 Nc6 10. Qh4 a6 11. Bxf6 gxf6 12. a3 Be7 13. Qa4 Qd7 14. Be2 Rg8
15. O-O h5 16. h4 Bd6 17. Rfd1 Bc7 18. e4 O-O-O 19. exd5 Rxg2+ 20. Kxg2 Bh3+
21. Kh1 Rg8 22. Rg1 Bg2+ 23. Rxg2 Qh3+ 24. Rh2 Bxh2 25. Nxh2 *
Position (FEN): 2k3r1/1p3p2/p1n2p2/3P3p/Q6P/P1N4q/1P2BP1N/R6K b - - 0 25
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1113
Best move: Qg2#