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

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Puzzler - NoviceCreate a solid blue circle to solve. The simplest of three different versions.
Puzzler - PrototypeOne of the first Puzzler variants made by the inventor himself.
Puzzler - StreakerOne of the lesser known versions of Puzzler by Douglas Engel.

Puzzler - StripesOne of the lesser known versions of Puzzler by Douglas Engel.
Puzzler - TricolorOne of the lesser known versions of Puzzler by Douglas Engel.
QuadriA very rare version of the original Swissmad. It presumably never made it into production.

Quadro 3An redesigned and improved version of Slide Rule Duel.
Quadruple DiskTwo Double Disks fused into one puzzle.
Rack 'Em Up (Milton Bradley)Milton Bradley version. Organize the 16 pieces into rows.

Rack 'Em Up (Tomy)Tomy version. Organize the 16 thingies into rows.
Radosza's RingsA heavily simplified relative of the Equator.
Ramka A puzzle from the soviet union with intersecting plungers made in the eighties.

Ranking StarsTwo sets of three intersecting plungers. It comes with two blocks for bandaging the puzzle additionally.
Rashkey 1First of a series of three similar puzzles. The three differ only by the colors of the pieces.
Rashkey 2Second of a series of three similar puzzles. The three differ only by the colors of the pieces.


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