Rubik's Cube Rubik's Cube Rubik's Cube is a 3-D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the Magic Cube, the puzzle was licensed by Rubik to be sold by Ideal Toy Corp. in 1980 via businessman Tibor Laczi and Seven Towns founder Tom Kremer, and won the German Game of the Year special award for Best Puzzle that year. , 350 million cubes had been sold worldwide making it the world's top-selling puzzle game. It is widely considered to be the world's best-selling toy. On the original classic Rubik's Cube, each of the
Nurikabe (puzzle) to "Nurikabe" and employ similar solution methods. The binary determination puzzle Atsumari is similar to "Nurikabe" but based upon a hexagonal tiling rather than a square tiling. Mochikoro is a variant of the Nurikabe puzzle: Nurikabe (puzzle) Nurikabe (hiragana: ぬりかべ) is a binary determination puzzle named for Nurikabe, an invisible wall in Japanese folklore that blocks roads and delays foot travel. Nurikabe was apparently invented and named by Nikoli; other names (and attempts at localization) for the puzzle include "Cell Structure" and "Islands in the Stream". The puzzle is played on a typically rectangular grid of cells, some of which