Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nc3 e6 3. e4 d5 4. Bg5 Be7 5. Bxf6 Bxf6 6. Nf3 O-O 7. Bd3 c5 8. e5
Be7 9. dxc5 Nc6 10. Qe2 h6 11. O-O-O Bxc5 12. h4 Nb4 13. Kb1 Bd7 14. a3 Nxd3
15. Qxd3 Rc8 16. Ng5 hxg5 17. hxg5 Re8 18. Qh7+ Kf8 19. Qh8+ Ke7 20. Qxg7 Rg8
21. Qh6 Rg6 22. Qh4 Qa5 23. Na2 Qa4 24. Qg3 b5 25. c3 Qb3 26. Rh7 Bxa3 27. Rd2
b4 28. Nc1 Qc4 29. Qf3 Rf8 30. bxa3 bxc3 31. Rc2 Rb8+ 32. Ka1 Be8 33. Qxc3 Qb5
34. f4 *
Position (FEN): 1r2b3/p3kp1R/4p1r1/1q1pP1P1/5P2/P1Q5/2R3P1/K1N5 b - - 0 34
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 719
Best move: Qb1#