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Puzzles involving various geometric shapes, in a flat plane and in three-dimensional space.

Latest: (7x7-1) = 2(5x5-1) Rating: 5.00

Take a 7x7 grid of squares and remove the center square.

Take two 5x5 grids of squares and remove each center square.

Cut the smaller figures into as few pieces as possible and reassemble to form the larger.

Is it possible to use fewer pieces if you are allowed to remove a different square than the center any of the original shapes?

Submitted on 2019-06-25 by Jer

Page 2 of 32

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