This question already has an answer here:
This challenge is currently in the process of being closed as 'too-narrow', which in this context means "this challenge is too hard/has too many restrictions, and thus is off-topic".
I don't think we should allow this. Compare to Build a working game of Tetris in Conway's Game of Life. Both are ridiculously hard, but neither have been proven impossible yet.
Do we vote to close challenges because they are too hard?