help the predicate to assemble a page in the textbook online puzzle

4x5 - 20 pieces5x6 - 30 pieces6x7 - 42 pieces7x8 - 56 pieces8x9 - 72 pieces9x10 - 90 pieces10x11 - 110 pieces11x12 - 132 pieces12x13 - 156 pieces13x14 - 182 pieces14x15 - 210 pieces15x16 - 240 pieces16x17 - 272 pieces17x18 - 306 pieces18x19 - 342 pieces19x20 - 380 pieces20x21 - 420 pieces21x22 - 462 pieces21x23 - 483 pieces22x24 - 528 pieces23x25 - 575 pieces24x26 - 624 pieces25x27 - 675 pieces26x28 - 728 pieces27x29 - 783 pieces28x30 - 840 pieces29x31 - 899 pieces30x32 - 960 pieces Start a new game Create a multiplayer game table

By solving these puzzles, you show us that they are worth showing to more visitors. Until they become more popular, they are partially hidden.

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