Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nc6 3. e3 Bf5 4. c4 Nf6 5. Nc3 dxc4 6. Bxc4 e6 7. Qb3 Na5 8.
Qa4+ Nc6 9. Bb5 e5 10. Bxc6+ bxc6 11. Bxe5 Bd7 12. Qc2 Nd5 13. Nf3 Nb4 14. Qb3
Be6 15. Qd1 f6 16. Bg3 Bg4 17. a3 Bxf3 18. Qxf3 Nc2+ 19. Ke2 Nxa1 20. Rxa1 Qd7
21. Qe4+ Be7 22. Nb5 O-O 23. Nxc7 Bd6 24. Bxd6 Qxd6 25. Nxa8 Rxa8 26. Rc1 Rb8
27. b4 a6 28. Qxc6 Qxh2 29. Qe6+ Kf8 30. Rc8+ Rxc8 31. Qxc8+ Kf7 32. Qxa6 Qxg2
33. Qc4+ Kg6 34. Qd3+ f5 35. b5 h5 36. b6 h4 37. Qa6 Qc6 38. Kf1 h3 39. Kg1 *
Position (FEN): 8/6p1/QPq3k1/5p2/3P4/P3P2p/5P2/6K1 b - - 1 39
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1103
Best move: Qg2#