Online since 2002. The most comprehensive site for all around twisty puzzles.

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Mind TwisterSix circles each with eight pieces and one hole.
Wisdom Ball - AdvancedSix rotating disks with eight numbered tiles each and one moving hole.
Wisdom Ball - BreakthroughSix rotating disks with eight numbered tiles each and one moving hole. This version is somewhere between ADVANCED and the traditional puzzle.

Wisdom Ball - InspireSix circles each with eight pieces and one hole. The versions named Wisdom Ball.
Wisdom PyramidThe tetrahedral version of the Wisdom Ball although an octahedron would have been better.

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