Design and Copyright : Bram Cohen (2011). ☞ Unhappy Woodworm 2
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| Pieces | 9 | A-G, H-I are congruent. |
| Goal | 4×4×4 | |
| Holes | 1 | |
| Solutions | 1 |
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| Pieces | 9 | A-F, G-I are congruent. |
| Goal | 4×4×4 | |
| Holes | 1 | |
| Solutions | 1 |
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| Pieces | 9 | A-E, F-I are congruent. |
| Goal | 4×4×4 | |
| Holes | 1 | |
| Solutions | 1 |