Online since 2002. The most comprehensive site for all around twisty puzzles.

Moving: Marbles
MastrolabacusA bigger version of Astrolabacus with five grooves. Maybe the first puzzle with moving marbles that jumbles.
Midi Barrel (Japanese)A japanese version of the wellknown Ten Billion Barrel
Moeraki Games Nr. 3One of a series of Moving marbles games.

Moeraki Games Nr. 4One of a series of Moving marbles games.
Monroe's MarblesMove the marbles from one column to the next by tilting and turning. Try to get each column a single colour.
Muschel DrehholzFour rings of six balls each.

Möbius LoopOne (!) ring of marbles plus one rotation.
Olympic RingsFive intersecting rings of marbles in a solid body.
One At A TimeTwo intersecting rings with three non-intersecting circles connected by gears.

One Circle - Two Circles24 marbles in 6 colours which can be moved in either one closed loop or twi distinct circles.
Orb (aka Orb-It) (english versions)A bead-moving puzzle that came in at least four different versions. The non-english versions have their own entry.
Orb (aka Orb-It) (non-english versions)Versions of Orb-It produced for the non-english speaking market.

OrganolabacusAn extremely big variant of Astrolabacus with eighteen segments but with six channels of beads.
Over & Under 5-loop Chain PuzzleFive rings with twentyfour marbles each, unconnected but exchangeable.
Over-and-UnderThree rings with seventeen marbles each, unconnected but exchangeable.


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