I saw this and thought I've seen this before. Lots of times. Could I remember how to do it? Nope.
Move three toothpicks to change four squares into three. No trickery is involved in the solution. It's really simple.
Answer below.
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Top left, top left side, bottom right, moved to create bottom right square.
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2 comments:
That puzzle always defeated me!
That is a difficult problem.
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