Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. Bf4 Bg7 3. Nc3 d6 4. e4 Nc6 5. d5 Ne5 6. Qd2 Nf6 7. f3 a6 8. Bh6
O-O 9. O-O-O c5 10. dxc6 bxc6 11. h4 Be6 12. h5 Nxh5 13. Rxh5 gxh5 14. Qg5 Ng6
15. Bxg7 Kxg7 16. f4 f6 17. Qg3 f5 18. exf5 Bxf5 19. Nf3 Rf6 20. Nh4 Bg4 21.
Rd2 Rxf4 22. Nxg6 hxg6 23. Qxf4 e5 24. Qb4 c5 25. Qb7+ Kh6 26. Rxd6 Qxd6 27.
Qxa8 Qd4 28. Qe4 Qg1 29. Qe1 a5 30. b3 Qd4 31. Qd2+ g5 32. Be2 Bf5 33. Nb5 *
Position (FEN): 8/8/7k/pNp1pbpp/3q4/1P6/P1PQB1P1/2K5 b - - 3 33
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1082
Best move: Qa1#