Birthday celebration online puzzle

4x2 - 8 pieces5x3 - 15 pieces8x4 - 32 pieces10x5 - 50 pieces11x6 - 66 pieces13x7 - 91 pieces15x8 - 120 pieces17x9 - 153 pieces19x10 - 190 pieces30x16 - 480 pieces Start a new game

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