Sam Loyd was only 17 when his “Trick Mules Puzzle” swept the country in 1858. He finally sold it to P.T. Barnum for $10,000.
Print this page and cut out the three pieces along the dashed lines. Now arrange them so that it looks like each jockey is riding a mule. You may overlap the pieces, but you mustn’t fold them.
It’s harder than it looks.