AstrolabiconThree rows of marbles on a sphere split in half.
Chain PuzzleTwo rings with fifteen marbles each, unconnected but exchangeable.
FIDJSeven marbles in eight positions in at most one rail in a body with threefold rotation.
KWOBEleven marbles in twelve positions in at most one rail in a body with fourfold rotation.
PsychlopathThree strangely tangled loops plus one rotated to rearrange them.
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