Rotating pillsOne rotating circle and one plunger rotate and move several pieces that look like pills.
Roto 36Four circles. One with 120°-steps, three with 60°-steps.
Roto 44Four circles in square configuration with a fifth in the center.
RotosEast german puzzle of overlapping disks.
Rubik's Fifteen (XV)Rubik's 15 (XV) is 2 puzzles in one. Arrange the numbers in sequence 1 to 15. On the other side there is a magic square challenge.
Sando RingSimilar to a King Ring. With touchable symbols.
Screw EnigmaEngel's Enigma with an additional dimension because of a screw like mechanism.
ShaulaThree intersecting circles each with three steps and with different distances between the centers. All that with a doctrinaire puzzle.
Shaula 2An unbandaged version of Shaula.
Side ViewMechanically this is a simple puzzle with four intersecting circles. Innovative is the fact that one can only see the side of the pieces which is still enough to solve it.
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