stairs from books online puzzle

3x3 - 9 pieces5x5 - 25 pieces7x7 - 49 pieces8x8 - 64 pieces9x9 - 81 pieces10x10 - 100 pieces11x11 - 121 pieces13x12 - 156 pieces15x14 - 210 pieces23x22 - 506 pieces Start a new game

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