4x4x4 Rubik's Cube, Rubik's Cube Toys Wiki

The 4x4x4 Rubik's Cube is also known as the "Rubik's Revenge" and the "Master Cube". It was released in 1981. Invented by Péter Sebestény, the Rubik's Revenge was nearly called the "Sebestény Cube" until a somewhat last-minute decision changed the puzzle's name to attract fans of the original Rubik's Cube. Unlike the original puzzle and the 5×5×5 cube, it has no fixed facets: the center facets (four per face) are free to move to different positions. The 4x4x4 Rubik's Cube has 7,401,196,841,564,9

Rubik's Magic Cube 4x4 Original Puzzles for Kids and Adults Wave 2 : : Toys

The super Rubik's cube. The 4 x 4 requires different moves to solve it than the original 3 x 3 cube, and it's more challenging!

Rubik's Cube 4x4

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Rubik's Cube world record set in 3.13 seconds by Max Park: Watch

File:Cubos 2x2 y 4x4 sin stickers revueltos 04.jpg - Wikimedia Commons

Rubik's Revenge, Rubik's Cube Wiki

4x4x4 Rubik's Cube, Rubik's Cube Toys Wiki

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twisty puzzles - 3x3x3 Rubik's Cube Illegal State - Puzzling Stack Exchange

5x5x5 Rubik's Cube, Rubik's Cube Toys Wiki