Orlov fourThe successor of the Orlov with four gears, even with the same middle pieces.
Orlov gearInspired by the gear puzzles from Douglas Engel. Three circles and irregular center pieces.
OrpheusA hybrid of 2x2x2 and DeCETH.
Other 4x4x4 (aka Puzzle 19)Designed to be a 4x4x4 with exposed new theoretical pieces. Although it has 64 pieces it presents itself as a superset of the 3x3x3.
Padlock CubeA 3x3x3 with bars attached to two edges. This concept implements a new type of bandaging.
Paladin cubeCould also be named curved deltoidal hexahedron.
Pandora CubeWorks like a 3x3x3 but with challenging new exterior.
Penrose 2x2x2The shape transformation of the Penrose Cube implemented with a 2x2x2.
Penrose Bump 4x4x4A Bump 4x4x4 (aka Mirror 4x4x4) truncated into three round surfaces in a spiral pattern.
Penrose CandadoA 2x2x3 placed in midturn and truncated into three round surfaces in a spiral pattern.