Sudoku Großdruck: 100 einfache und mittlere Rätsel (leichte Sudoku Bücher) [Taschenbuch]
12,09 €
This sudoku puzzle book is designed for you who want challenging - but not too challenging - sudokus. The brain is like a muscle. It's getting stronger the more you train it. Solving sudoku puzzles is a perfect way to train your brain and make sure you stay sharp.
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