Hardest Difficulty Sudoku Puzzles for the Advanced Puzzle Solver by Coop, Puzzle
10,16 €
Would you like to know why everyone is addicted to Sudoku? Then open a book and find out for yourself! The main addicting ingredient to this game is that it strengthens your pattern detecting muscle. Your brain is wired to see and recognize patterns so it's just a matter of boosting that ability. Join the addiction. Play Sudoku today!
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