2 queen mate!
How are we to know what 41. Qxf6# means...
...if no game is posted?
2 queen mate is too common already. Nothing interesting with it. If you can have a knight and bishop checkmating the opponent, I may just be interested in looking at the game.
The checkmate can be prevented with 38 ... Bd7+! forking white´s queen and king. It´s game over for white as black has 7 queens on the board and a forced mate in 3.