Pyraminx vs Square-1
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Pyraminx
The Pyraminx is a tetrahedral combination puzzle invented by Uwe Meffert and commercially introduced in 1981. Its four axial turning mechanisms allow sections of the puzzle to rotate, with the objective of restoring a uniform color to each face. Although its triangular form distinguishes it from cube-shaped twisty puzzles, solving it likewise requires spatial reasoning and learned move sequences....
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Square-1
Square-1, also known as Cube 21, is a shape-shifting twisty puzzle invented in Czechoslovakia by Karel Hršel and Vojtěch Kopský and released commercially in 1990. Unlike standard 3×3×3 cubes, its mechanism allows the three layers to be cut at varying angles, causing the puzzle to deform into non-cubic polyhedral shapes when scrambled. Solving requires returning the pieces to a cube shape and then...
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