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

Karolis Kairys
Quadrastic-4A variant of the Tetrakium bandaged in a highly symmetrical fashion.
QuadrismFive circles rotating by 90°, one of them spanning almost the whole puzzle.
Quadro 3An redesigned and improved version of Slide Rule Duel.

QuadrocollideThree circles of different sizes, all of which rotate by 90° and intersect.
RadiowavesFive circles (three concentric) of different sizes, all of which rotate by 180°.
RokettoThree intersecting circles allowing turns in 180° and sometimes 36°.

RootingerTwo intersecting circles combined with a plunger.
Rota-RiusTwo very small circles and one plunger with six tiles.
Rotator 120Six circles rotatable in steps of 120°

Rub el HizbOne circle rotating by 45° plus one plunger to exchange pieces.
SemiCollideFive circle of different sizes, all of which rotate by 90°.
ShatkonaTwo circles turning in steps of 60° with one plunger for intersecting pieces.

Sliderblox 2Four plungers in two sets intersect orthogonally.
Snowflake DUOSixteen pieces can be moved with two holes.
Snowflake TrioTwenty six pieces can be moved with three holes.


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