Chess puzzle (Checkmate)
Moves: 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. a3 d5 5. b4 a6 6. c4 dxc4 7. Bxc4 b5 8. Bb3
Be7 9. Nc3 O-O 10. Nf3 Bb7 11. O-O e4 12. Ng5 Ne5 13. Ncxe4 Nc4 14. Bxf6 Bxf6
15. Rc1 Bxg5 16. Bxc4 Bxe4 17. Bb3 Qf6 18. f4 Bh4 19. g3 Qg6 20. f5 Qg5 21. Rf4
Bxg3 22. Qg4 Bxh2+ 23. Kxh2 Qh6+ 24. Kg3 Bb7 25. Rxc7 Rab8 26. f6 g5 27. Rf2
Ba8 28. Bc2 Rb6 29. Qd4 Rc6 30. Rxc6 Bxc6 31. Qd6 *
Position (FEN): 5rk1/5p1p/p1bQ1P1q/1p4p1/1P6/P3P1K1/2BP1R2/8 b - - 1 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 820
Best move: Qh4#