1. The Missing Piece The four partitions are exactly the same in both arrangements. Why is there a hole? Press Stop to drag the pieces yourself. Where does this hole come from? Stop Click Stop to manually move these pieces around. (This interactive visual was generated with AI) Added 1 January 2007 · Updated 12 August 2026 Show Hint Show Solution Hint: This is not an optical illusion. If you print out the puzzle, cut out the pieces and rearrange them, you get the exact same dilemma. Solution: The gradient of the teal hypotenuse is different than the gradient of the red hypotenuse.
Comments (3)
The Missing Piece puzzle is not very easy; it's too simple.
The answer to puzzle number 3 should be thirteen, not fourteen.
I still fail to comprehend how the triangle puzzle works out. Could you please explain it better for me?
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