Hyper Sudoku: 400 Hard Level Sudoku, Sudoku Hard Puzzle Books, Hard Sudoku Books
12,41 €
The goal of Hyper Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains each number exactly once. Furthermore, Hyper Sudoku contains four colored regions, each colored region contains each number exactly once.Solving Sudoku is a lot of fun and very easy to learn.
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