Supersoluble Arrangement
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Slothouber Graatsma puzzle is a packing problem that calls for packing six 1 × 2 × 2 blocks and three 1 × 1 × 1 blocks into a 3 × 3 × 3 box. The solution to this puzzle is unique (up to mirror reflections and rotations). The puzzle is essentially the same if the three 1 × 1 × 1 blocks are left out, so that the task is to pack six 1 × 2 × 2 blocks into a cubic box with volume 27. The Slothouber Graatsma puzzle is regarded as the smallest nontrivial 3D packing…mehr

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Slothouber Graatsma puzzle is a packing problem that calls for packing six 1 × 2 × 2 blocks and three 1 × 1 × 1 blocks into a 3 × 3 × 3 box. The solution to this puzzle is unique (up to mirror reflections and rotations). The puzzle is essentially the same if the three 1 × 1 × 1 blocks are left out, so that the task is to pack six 1 × 2 × 2 blocks into a cubic box with volume 27. The Slothouber Graatsma puzzle is regarded as the smallest nontrivial 3D packing problem. The solution of the Slothouber Graatsma puzzle is straightforward when one realizes that the three 1 × 1 × 1 blocks (or the three holes) need to be placed along a body diagonal of the box, as each of the 3 x 3 layers in the various directions needs to contain such a unit block. This follows because the larger blocks can only fill an even number of the 9 cells in each 3 x 3 layer.