211212121 online puzzle

5x4 - 20 pieces7x5 - 35 pieces8x6 - 48 pieces10x7 - 70 pieces11x8 - 88 pieces13x9 - 117 pieces14x10 - 140 pieces16x11 - 176 pieces17x12 - 204 pieces19x13 - 247 pieces20x14 - 280 pieces22x15 - 330 pieces23x16 - 368 pieces25x17 - 425 pieces26x18 - 468 pieces28x19 - 532 pieces29x20 - 580 pieces Start a new game Create a multiplayer game table

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