Chess puzzle (Checkmate)
Moves: 1. e4 Nc6 2. Bc4 f5 3. exf5 Ne5 4. Bb3 g6 5. fxg6 hxg6 6. d4 Nf7 7. Qf3 Rh7 8.
Be3 e6 9. Nc3 d5 10. a3 Bd6 11. O-O-O c6 12. Nh3 g5 13. Qe2 e5 14. dxe5 Bf8 15.
f4 Bf5 16. Nxg5 Nxg5 17. fxg5 Qc8 18. h3 Bg7 19. g4 Bg6 20. Rdf1 a6 21. Bc5 Ne7
22. Bxe7 Kxe7 23. Na4 Rb8 24. Nc5 Ke8 25. Nd3 Kd8 26. Nf4 Be4 27. Rh2 Kc7 28.
Nd3 Qe8 29. Kb1 Bxd3 30. Qxd3 Qxe5 31. Qxh7 *
Position (FEN): 1r6/1pk3bQ/p1p5/3pq1P1/6P1/PB5P/1PP4R/1K3R2 b - - 0 31
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1011
Best move: Qxb2#