Hey now, tough guy, don't be fooled by sight alone into thinking this one is a cakewalk. So how could a nine-piece puzzle be difficult? After you dig in to One Tough Puzzle, you will feel silly for having asked yourself the question. In a truly outstanding example of something looking far simpler than it really is, we offer One Tough Puzzle: a red-pieced mind menace you are sure to find challenging if not altogether vexing! Assemble the nine pieces, 3 across, three down. There should be 6 interlocks that extend beyond the outline of the square, 6 that are inside the outline of the square, and no holes in the middle. Box of tissues for when this one reduces you to tears is not included.