Question 14
Determine all $ m \times n $ rectangles that can be covered with hooks made up of 6 unit squares, as in the figure:
Rotations and reflections of hooks are allowed. The rectangle must be covered without gaps and overlaps. No part of a hook may cover area outside the rectangle.
Rotations and reflections of hooks are allowed. The rectangle must be covered without gaps and overlaps. No part of a hook may cover area outside the rectangle.