Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. c4 c5 3. Nc3 a6 4. Nf3 Nf6 5. g3 Nc6 6. Bg2 Be7 7. d4 cxd4 8. Nxd4
O-O 9. O-O Bc5 10. Nb3 Be7 11. Bf4 e5 12. Bg5 d6 13. Kh1 h6 14. Bxf6 Bxf6 15.
f4 exf4 16. Nd5 fxg3 17. Nxf6+ gxf6 18. Qh5 Kh7 19. Rf4 Rg8 20. Qxf7+ Rg7 21.
Qd5 gxh2 22. Rh4 Ne7 23. Qd3 Qg8 24. e5+ Bf5 25. Qd2 Rg6 26. Bxb7 Rg1+ 27. Kxh2
*
Position (FEN): r5q1/1B2n2k/p2p1p1p/4Pb2/2P4R/1N6/PP1Q3K/R5r1 b - - 0 27
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1171
Best move: Qg3#