Chess puzzle (Checkmate)
Moves: 1. b4 e5 2. Bb2 Nc6 3. b5 Nd4 4. e3 Nf5 5. Bxe5 d6 6. Bb2 Be7 7. e4 Bf6 8. Bxf6
Qxf6 9. Nc3 Nfh6 10. Nd5 Qd8 11. Nf3 Bg4 12. Be2 Nf6 13. Nxf6+ Qxf6 14. O-O O-O
15. h3 Bh5 16. g4 Nxg4 17. hxg4 Bxg4 18. Kh1 Qh6+ 19. Kg1 Bh3 20. Re1 Qg6+ 21.
Kh2 *
Position (FEN): r4rk1/ppp2ppp/3p2q1/1P6/4P3/5N1b/P1PPBP1K/R2QR3 b - - 7 21
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 791
Best move: Qg2#