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A shape variant of the 3x3x3. Four rows of three cubies each were glued onto an octagonal prism.
This is one of the shape variants Jean-Claude Constantin custom built in the 1980s and 1990s. Although there are images to proove that Jean-Claude built this puzzle at least once it is unknown when he built it exactly. Also unknown is the name Jean-Claude gave this creation if any.
The year given here is just an upper bound.
The images show a sample remade later.
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