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

Dmitry Andreev
Irregular Puzzler 2.1The Irregular Puzzler with a third additional circle.
Irregular Puzzler 2.2The Irregular Puzzler with a third additional circle.
Irregular Puzzler 2.3The Irregular Puzzler with two additional circles.

IzarFour intersecting circles in a jumbling puzzle. Two turns in five steps. Two in irrational angles.
Keid 3Three circles turning in steps of 180° and one central circle to exchange pieces between them.
Keid 4Four circles turning in steps of 180° and one central circle to exchange pieces between them.

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.

MagnoliaA variant of the puzzler with rods, recessed and extended by magnets indicate the right position.
MatrioshkaThree intersecting circles with one embedded in another.
Matrioshka 2Two intersecting circles with three possible turns.

MeissaA simplified version of the Puzzler but with the additional mechanism of the Auzzle.
MimosaTwo intersecting circles that return with steps of 2 and 5 with very deep intersectins beyond the centres of the circles.
Mimosa CrazyAn enhanced variant of Mimosa with a small additional circle.


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