As you can see in the picture, 20 matchsticks have been used to form five squares. What you have to do is move two of the matchsticks in a manner that seven squares are formed.
Please note that you cannot overlap the matches or break them. The squares can be on any size but they must be closed squares.
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Solution
As you can see in the picture, we have just moved two of the matchsticks and now we have seven squares of 1x1, 2x2 and 3x3 sizes.
