Sudoku Skyscrapers - 200 Hard to Master Puzzles 8x8 (Volume 6) by Dart Veider (E
15,70 €
By Dart Veider. Author Dart Veider. Skyscrapers consists of a square grid. The goal is to fill in each cell with numbers from 1 to N, where N is the size of the puzzle's side. No number may appear twice in any row or column.
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