A man possessed a square-shaped estate.
He bequeathed to his widow the quarter of it that is shaded
The remainder was to be divided equitably amongst his four sons, so
that each should receive land of exactly the same area and exactly
similar in shape.
We are shown how this was done.
But the remainder of the story is not so generally known.
In the centre of the estate was a well, indicated by the dark spot, and
Benjamin, Charles, and David complained that the division was not
"equitable," since Alfred had access to this well, while they could not
reach it without trespassing on somebody else's land.
The puzzle is to show how the estate is to be apportioned so that each
son shall have land of the same shape and area, and each have access to
the well without going off his own land.