Orbital PuzzleThree intersecting rings in a 2D-puzzle of soviet origin.
Orion-14Four intersecting circles (in steps of 90°) in a 2D-puzzle of soviet origin.
Rota - NumbersA version of the swissmade 2x2x2 puzzle named "Rota" with numbers on the stickers.
Rotating pillsOne rotating circle and one plunger rotate and move several pieces that look like pills.
Rubik's Magic Strategy Game"Easy to learn, a challenge to win." (Not to be confused with Rubik's Infinity, which is "easy to learn, a challenge to master"!)
SpectraTwelve circles with six sectors, eight colours on 9 arms.
Spin-OutTry and remove the inner sliding mechanism, blocked by knobs you can only turn one at a time.
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