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Demolish the connection, then try to interlock it once more.
Asymmetrical 12-piece burr puzzle which was patented in 1890 under the name of one William Altekruse.
The Altekruse puzzle has an unusual assembly procedure so this is a little bit different to other typical forms of a burr puzzle.
- Difficulty Level: 2 (Intermediate)
- Dimensions: 2.75″ x 2.75″ x 2.75″
