birthday online puzzle

5x3 - 15 pieces6x4 - 24 pieces9x6 - 54 pieces11x7 - 77 pieces13x8 - 104 pieces14x9 - 126 pieces15x10 - 150 pieces16x10 - 160 pieces17x11 - 187 pieces28x18 - 504 pieces39x25 - 975 pieces Start a new game

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