On your Sudoku Challenge Cube 3×3 V1, all individual pieces (centers, edges and corners) have the same shared color, which makes the challenge a bit easier than on the V2 and V3, where the same piece can have several different colors on it. The V3, in turn, is even more difficult than the V2, due to the way the different colors are arranged on the pieces. However, all puzzles are much more difficult to solve than a regular 3×3 cube, and will give you a long and fun challenge.
If you want to buy all the cubes included in the series at a discounted price, the package product is available here .
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