Online since 2002. The most comprehensive site for all around twisty puzzles.
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Guido Lap
Brainstring AdvancedAn improved design and an additional set of strings set this version apart from the original.
Brainstring OriginalTwelve elastic strings are moved around within a transparent cube.
Brainstring RThe third puzzle named "Brainstring". A minimal twist with elastic string within it.
CrossteaserRotate colour wheels into the open space to move them.
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