No 2×2 Squares Fillomino

Divide the grid into connected blocks whose size matches the number in every cell. No 2×2 area may contain the same number.
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Fill every cell with a number. Connected cells with the same number form a block, and the number equals the block’s cell count. Blocks of the same size cannot share an edge. No 2×2 area may contain the same number in all four cells.
Logic · Numbers · Deduction · Grid
Brain training · PuzGo