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Saturday 1 November 2014

Quiz 135

There are five squares (one 3x3 and four 1x1) formed with 20 matchsticks, as shown in the illustration. Move two matchstick to get seven squares. Overlapping or breaking of matchsticks or "loose ends" are not allowed
Answer: Seven squares are formed: five 1x1 squares, one 2x2 square, and one 3x3 square