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

Intersecting circles
Kornephoros1Two intersecting circles of different size turning in steps of eight.
Kornephoros2Three intersecting circles turning in steps of eight, eight and two.
Kornephoros3Three intersecting circles turning in steps of eight, eight and two.

Kvadratura KrugaA puzzle from the soviet era. Its title translates to "Squaring the circle"
LemonsTwo intersecting circles with different step lengths and different sizes.
Leonidas (unbandaged)Four intersecting circles with five rings and four different possible turns.

Leonidas Doble CrazyFour intersecting circles with five rings and four different possible turns.
LooperThree circles on one line, each allowing 180° turns with a shallow intersections.
LoticaThe original Lotica without images on the pieces.

Mad TriadTen overlapping wheels. Each with six segments.
Magic DigitFour intersecting circles with just seven pieces visible out of twelve pieces in total, with an additional flipping mechanism for the pieces.
Magic Disc (aka Brain Teaser)Four intersecting circles

Magic Disc (aka Brain Teaser) IIFour intersecting circles with a different cutting depth.
Magical GearsA puzzle with two intersecting circles. Produced in low quantity in four different variants.
MagnoliaA variant of the puzzler with rods, recessed and extended by magnets indicate the right position.


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