Chess puzzle (Checkmate)
Moves: 1. e3 e5 2. Nc3 Nc6 3. b3 Nf6 4. Bb2 a6 5. Nf3 h6 6. Bc4 d5 7. Be2 e4 8. Nd4
Ne5 9. f4 exf3 10. Nxf3 Bd6 11. d4 Nxf3+ 12. Bxf3 Bf5 13. O-O c6 14. h3 Qc7 15.
Ne2 O-O-O 16. c4 g5 17. Nc3 Ne4 18. Bxe4 Bxe4 19. Nxe4 dxe4 20. d5 c5 21. Bxh8
Bh2+ 22. Kf2 Qg3+ 23. Ke2 Qxg2+ 24. Rf2 Qxh3 25. Bf6 Rd6 26. Qf1 Qh5+ 27. Kd2
Bg3 28. Rg2 Bh4 29. Qf5+ Kb8 30. Be5 Qg6 31. Bxd6+ Qxd6 32. Qxf7 Ka7 33. Rf1
Qe5 34. Qf6 Qc7 35. d6 Qa5+ 36. Kc2 Qxa2+ 37. Kc3 Qxg2 38. d7 g4 39. Qxh4 Qxf1
40. d8=Q *
Position (FEN): 3Q4/kp6/p6p/2p5/2P1p1pQ/1PK1P3/8/5q2 b - - 0 40
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1451
Best move: Qc1#