Chess puzzle (Checkmate)
Moves: 1. c4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e6 5. e4 a6 6. Nge2 Qc7 7. O-O Be7 8. d3
d6 9. f4 Rb8 10. f5 b5 11. cxb5 axb5 12. d4 cxd4 13. Nxd4 Qb6 14. Be3 b4 15.
Na4 Qa6 16. Nxc6 Qxc6 17. e5 Nd5 18. f6 gxf6 19. exf6 Bd8 20. Bh6 Bb6+ 21. Nxb6
Qxb6+ 22. Kh1 Bb7 23. Qg4 Kd7 24. Qg7 Rhf8 25. Qxh7 Ne3 26. Bxb7 Qxb7+ 27. Kg1
*
Position (FEN): 1r3r2/1q1k1p1Q/3ppP1B/8/1p6/4n1P1/PP5P/R4RK1 b - - 1 27
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1113
Best move: Qg2#