Natural regions online puzzle

3x3 - 9 pieces5x6 - 30 pieces7x8 - 56 pieces8x9 - 72 pieces8x10 - 80 pieces9x11 - 99 pieces10x12 - 120 pieces11x13 - 143 pieces13x15 - 195 pieces20x24 - 480 pieces Start a new game

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