Fenzy CA shallower cut Melty C or a Boca Cube with eight sides.
Floppy 2x2x2A twisty puzzle with corners that hang in the air.
Floppy 2x2x3A twisty puzzle with corners that hang in the air.
Floppy 2x3x3A twisty puzzle with corners that hang in the air.
Floppy 3x3x3The concept of the Floppy 1x3x3 applied to a 3x3x3
Fractal TwistFour intersecting circles with growing diameter. Turns of 180° are possible at any time.
Framed CubeA 4x4x4 reduced to the maximum! The inner 2x2x2 is visible and has to be solved too.
Frucht TwistA twisty puzzle without any symmetry and based on a very strange graph.
FudballThe dodecahedral cousin of the Doctor Skewb.
FudgedronA fudged cousin of the Gem III. A hybrid of corner turning and face turning hexahedron which allows 60°-turns on the corners.
FudgidronA face turning chamfered cube. A fudged puzzle.
Full Turn CubeThis is a 3x3x3 which allows only 360° turnes. It is a puzzle that isn't.
FuttminxThe "fudged" cousin of the tuttminx which allows more movements.
Gear and SlideThis puzzles combines gearing and sliding. One of its moves reminds one of the Minimal Twist.