Martin vs The world Analysis thread

Isn’t Bc3 illegal? On the page with the DBs it said a bishop on f1 couldn’t move to d3 so a bishop in c1 shouldn’t be able to move to e3

It needs a clear, unbroken path.  Think about your "argument" and let me know what you conclude.

Btw, I already know the answer, and I haven't even consulted a board to check my opinion.