Cell Block

Divide a grid of squares into blocks according to simple logical rules.

  • Number Puzzle
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As with all the best logical puzzles, the rules of Cell Block (aka Shikaku) are simple. We present the solver with a grid of squares, some of which contain numbers. The solver’s challenge is to divide the grid squares into blocks that are either rectangular or square.

Each block must contain a single number, and that number must correspond with the number of squares in the block – so, for example, the number 3 will be contained in a three-square rectangular block.

Cell Block puzzles come in a variety of sizes, with difficulty level generally increasing with grid size.



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