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

Moving: Tiles
Cor CaroliThree intersecting circles rotating around two centres.
Corner of InfinityA three circle puzzle centered on the corner of a hexagonally tiled infinite plane.
Corner of Infinity UnbandagedAn unbandaged version of the Corner of Infinity.

Crazy LekkiTwo intersecting circles with four rings and three different possible turns.
Crazy LooperThree circles on one line, each allowing 180° turns with a shallow intersections. Plus three additional inner circles.
Crazy LoticaA reimplemented Lotica with an additional inner circle.

Crazy RodiumThe Puzzler with two concentric circles per half.
Crazy Rodium 3The Crazy Rodium with three circles instead of two.
Crazy Super LooperThree circles on one line, each allowing 180° turns with deeper intersections. Plus four additional inner circles.

Crazy TrioFour intersecting circles with a bunch of cuts.
Crazy puzzlerFour intersecting circles, two are 6-fold and two are 3-fold.
CrazyLoid V1Two circles with three turns. One turning in steps of 90°, the other with halfturns.

CrazyLoid V2Two circles with four turns. One turning in steps of 90�, the other in steps of 180°.
CrazyLoid V3Two circles of order 4 and 2, both with two concentric turns in different depths.
Crossover puzzleA puzzle back from the early 1980s produced by Nintendo. It works with intersecting plunges and polarised light.


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