Duplex 2Two intersecting circles of which one can be twisted.
Duplex 3Two circles of marbles that would not intersect if it weren't for the twist of the Duplex puzzles.
ForamenCombines two intersecting circles with one plunger.
FormalhautTwo circles with different degree of rotation in a puzzle that is still doctrinaire.
GacruxTwo intersecting circles with eightfold turns but not in steps of 45°. A jumbling-only puzzle.
HadarThree intersecting circles that return with steps of 2, 5 and 6 but still being doctrinaire.
MatrioshkaThree intersecting circles with one embedded in another.
Matrioshka 2Two intersecting circles with three possible turns.
MimosaTwo intersecting circles that return with steps of 2 and 5 with very deep intersectins beyond the centres of the circles.
MintakaTwo circles intersecting in a doctrinaire fashion with four steps each and with vastly different radii.
MiraThree intersecting circles, two are 5-fold, one is 2-fold.
MizarFour circles of which two could form a doctrinaire puzzle despite a fivefold rotation.