Sudoku X Puzzles - 200 Hard 16x16 Vol.13 (Sudoku X Puzzles) [Paperback] NEU
16,50 €
Each puzzle consists of a 16x16 grid containing given clues in various places. The object is to fill all empty squares so that the numbers 1 to 16 appear exactly once in each row, column, diagonal and 4x4 box.
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