Chess puzzle (Checkmate)
Moves: 1. d4 f5 2. Bf4 e6 3. h4 Nf6 4. e3 Nc6 5. Be2 d6 6. Nc3 Bd7 7. Bb5 a6 8. Ba4
Qe7 9. Bg5 d5 10. Nf3 O-O-O 11. Bxc6 Bxc6 12. Ne5 Be8 13. f3 h6 14. Bf4 Qb4 15.
Nd3 Qb6 16. a4 a5 17. Qe2 Bb4 18. Nxb4 Qxb4 19. Qd3 Nh5 20. Bh2 Rf8 21. O-O f4
22. Rfb1 g5 23. hxg5 hxg5 24. exf4 Nxf4 25. Bxf4 Rxf4 26. Ra3 Rxd4 27. Qe3 Rh4
28. Rb3 Qd6 29. Nb5 Qh2+ 30. Kf2 Bxb5 31. Rxb5 e5 32. Rxa5 d4 33. Qxg5 e4 34.
Ra8+ Kd7 35. Qf5+ Ke7 36. Rxd8 e3+ 37. Ke2 Qxg2+ 38. Kd3 Qd2+ 39. Kc4 d3+ 40.
Kb5 *
Position (FEN): 3R4/1pp1k3/8/1K3Q2/P6r/3ppP2/1PPq4/1R6 b - - 1 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1543
Best move: Qb4#