Square-1 (puzzle)
= Square-1 (puzzle)
{wiki=Square-1_(puzzle)}
Square-1, also known as the Square-1 puzzle or Shape Shifter, is a twisty puzzle similar to a Rubik's Cube but with a distinct design and mechanics. The puzzle is cube-shaped and consists of a mechanism that allows it to change shape as it is manipulated. It features a series of square and triangular faces that can rotate.