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10
They pack into a 4x4x5 solid 15 different ways. If we eliminate the pieces that are themselves rectagular (E and J) and try to pack them into a 4x4x4 solid there are no solutions. We can find solutions by eliminating one and duplicating another from the remaining eight. But there are only to favorable situations: eliminate D and duplicate F (4 solutions ), or eliminate H and duplicate C (7 solutions ). |
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