It's an illusion. The lines they draw are not actually perpendicular to each other, which means the angles of the pieces are not really parallel when they rotate them. The pieces after moving them actually have some overlap equal to one square.
It's an illusion. The lines they draw are not actually perpendicular to each other, which means the angles of the pieces are not really parallel when they rotate them. The pieces after moving them actually have some overlap equal to one square.
It's an illusion. The lines they draw are not actually perpendicular to each other, which means the angles of the pieces are not really parallel when they rotate them. The pieces after moving them actually have some overlap equal to one square.
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