earth system online puzzle

4x2 - 8 pieces7x4 - 28 pieces9x5 - 45 pieces11x6 - 66 pieces13x7 - 91 pieces15x8 - 120 pieces16x9 - 144 pieces20x11 - 220 pieces31x17 - 527 pieces42x23 - 966 pieces Start a new game

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