18 July 2015

269. Move 6 to create 18 parallelograms

Easy Medium Hard Extreme

There are 20 triangles in the above figure. (12 of size 1X1, 6 of size 2X2 and 2 of size 3X3)

Move 6 sticks to create 18 parallelograms. There must be no remaining triangles in your solution.

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