DoppelkreisA derivate of the hungarian rings with less marbles in only two colours. It resembles the original patent from 1893!
Dual LoopsTwo intersecting rings with one or two independent rings depending on the circle in the middle.
Duplex 3Two circles of marbles that would not intersect if it weren't for the twist of the Duplex puzzles.
EglutÄ—A small puzzle with moving marbles.
EntrapmentA strange puzzle with moving marbles that came in two different versions.
Five CirclesFive separated circles with 17 marbles each. Connected by two giant concentric circle.
FlowerBring the marbles back to the circle of their colour.
Game 7Six numbered pieces in two intersecting rings.
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