Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c3 d5 3. h3 Nc6 4. g4 e5 5. Nf3 e4 6. Ng1 Bd6 7. a4 Be6 8. a5 a6
9. Qb3 Qc8 10. Be3 h5 11. g5 Nd7 12. h4 f6 13. Nh3 f5 14. Nd2 g6 15. Bf4 Bxf4
16. Nxf4 Nf8 17. Nxe6 Nxe6 18. e3 f4 19. Qxd5 fxe3 20. fxe3 Qd7 21. Qxe4 O-O-O
22. Qxg6 Qd5 23. e4 Qd6 24. Bh3 Rhe8 25. d5 Kb8 26. Bxe6 Qg3+ 27. Kd1 Ne5 28.
Qxh5 Nd3 29. Kc2 Nf2 30. Qf3 Nxh1 31. Rxh1 Qe5 32. Nc4 Qg7 33. Rg1 Rf8 34. Qe3
Qh7 35. Rh1 Qh5 36. g6 Qxg6 37. Rg1 Qh5 38. Qg5 Qe2+ 39. Kb3 b5 40. Ne5 Qxe4
41. Nc6+ Kb7 42. Nxd8+ Rxd8 43. Qxd8 *
Position (FEN): 3Q4/1kp5/p3B3/Pp1P4/4q2P/1KP5/1P6/6R1 b - - 0 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 969
Best move: Qa4#