Can we make our own puzzle and publish it??
Click Insert Board, Theme, Then Tick Puzzles, then you can set up the position and the moves and press publish.
This only happens in comments though.
This only works if black makes mistakes. For example, after Qa1, black can block with ...Bd4, protected by the knight. In fact, in the analysis board, after Qa1 Bd4, the engine finds a forced mate in 12 for black. There could be faster solutions, I didn't explore very far.