Chess puzzle (Checkmate)
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3 O-O 6. Bd3 c6 7. O-O a5 8. a4 h6
9. e5 dxe5 10. dxe5 Nh7 11. Be3 Nd7 12. Qe2 Bxe5 13. Nxe5 Nxe5 14. Bxh6 Nxd3
15. Bxf8 Nf4 16. Qf3 Ne6 17. Bh6 Qc7 18. Rad1 b6 19. Nb5 Qb8 20. Qxc6 Bb7 21.
Qxb6 Ra6 22. Qe3 Nf6 23. Bg5 Qe8 24. Bxf6 exf6 25. Rfe1 Kg7 26. Nc7 Qc6 27.
Nxa6 *
Position (FEN): 8/1b3pk1/N1q1npp1/p7/P7/4Q2P/1PP2PP1/3RR1K1 b - - 0 27
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 622
Best move: Qxg2#