Face Turning Octahedron

The Face Turning Octahedron (often abbreviated as FTO) is a combination and mechanical puzzle. Unlike cubic puzzles, the FTO is based on an octahedral geometry with eight triangular faces that rotate independently. Its deep-cut mechanism and interplay of the various piece types give the puzzle a distinctive solving approach compared to other cubic puzzles.^[1] The FTO is notable for being the first octahedral twisty puzzle to feature straight cuts, setting it apart from earlier octahedral designs.