Farmland GearA puzzle with intersecting circles. Compared with similar circles this puzzle has additional gears inside the big square-like pieces.
Firebolt pillA cylinder with 4*8 tiles which can be moved in two completely different ways.
Flip-SideTen tiles, one rotatable plane and two additional plungers.
ForamenCombines two intersecting circles with one plunger.
FormalhautTwo circles with different degree of rotation in a puzzle that is still doctrinaire.
Four by four - AnimalsAlternative versions of Tsukuda square with a several animals instead of coloured or numbered pieces.
Fractal TwistFour intersecting circles with growing diameter. Turns of 180° are possible at any time.
GacruxTwo intersecting circles with eightfold turns but not in steps of 45°. A jumbling-only puzzle.
GeraniumFive intersecting circles cut with fivefold symmetry imposing unprecedented theoretical challenges.
Geranium ButterflyA version of Geranium with six circles in a line-like pattern similar to the olympic rings.