An interesting book online puzzle

3x3 - 9 pieces5x6 - 30 pieces7x8 - 56 pieces8x9 - 72 pieces9x10 - 90 pieces9x11 - 99 pieces10x12 - 120 pieces11x13 - 143 pieces13x15 - 195 pieces21x24 - 504 pieces Start a new game

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

9

3