Polaroid CubeA 2x2x2 consisting only of rails. It uses polarizing filters instead of stickers.
Polo CubeA puzzle combining a 2x2x2 with a Sliding-2x2x2 which therefore lacks one cubies.
Puck 2/16Two 16-segmented circles on a 1x1x2.
PyrafusionAn arbitrarily truncated Pyraminx. Almost impossible to recreate.
PyrainxA Megaminx in shape of a tetrahedron
Pyramus & ThisbeA puzzle which is based on the fourth dimensional symmetry (edge-transitivity) of the 4D polytope Tetrahedral prism
PyraUfoAn Ufo stuck in midturn transformed into the shape of a tetrahedron.
Quad-XAn edge turning hexahedron with cuts deeper than the Helicopter Cube.
Quarter CubeAlso known as Latch Cube II. Another design by the famous Katsuhiko Okamoto.
QuartetA four-sided puzzle comparable to the Grimace.