Design and Copyright : Mitsuhiro Odawara. Following 6 pieces (Hexominoes) will be assembled. The name of each piece is as follows.
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9×4×1 : 1 solution.
6×6×1 : 1 solution.
4×3×3 : 1 solution.
These pieces are chosen on the following conditions.
That 3 rectangulars can be assembled has only 7 ways under these conditions. (see Hexominoes about the number of pieces)
| Piece Set | 9×4×1 | 6×6×1 | 4×3×3 | Remark | |
|---|---|---|---|---|---|
| 1. | 5 6 8 12 16 18 | 1 | 1 | 1 | Triple Unique |
| 2. | 5 6 10 16 18 24 | 4 | 1 | 1 | |
| 3. | 5 6 12 14 16 18 | 8 | 4 | 1 | |
| 4. | 5 7 8 12 16 24 | 4 | 1 | 1 | |
| 5. | 5 8 9 12 14 24 | 8 | 2 | 1 | |
| 6. | 5 12 13 14 16 26 | 8 | 5 | 1 | |
| 7. | 7 8 9 12 14 16 | 48 | 1 | 24 |
