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A polyomino is called a development if it can make a box by folding edges ofunit squares forming the polyomino. It is known that there are developmentsthat can fold into a box (or boxes) in multiple ways. In this work, weconducted a computer search for finding such developments by using a SATsolver. As a result, we found thousands of such developments including apolyomino of area 52 that can fold into a box of size $1 \times 2 \times 8$ infive different ways.

Search for developments of a box having multiple ways of folding by SAT solver