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Math Games For Second Grade: Foseruzu Puzzles - 100 Large Puzzles For Kids
Math Games For Second Grade: Foseruzu Puzzles - 100 Large Puzzles For Kids
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("Four Cells") is a type of math logic puzzle published by Nikoli. The goal is to divide the grid into regions of exactly four cells. The number inside a cell represents how many of its four sides are segments of region borders (including the border of the grid).