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01777-950812"500 Sudoku Brain Game For Smart Minds" is a book that offers 500 challenging Sudoku puzzles in four difficulty levels, ranging from easy to expert. Sudoku is a popular logic-based puzzle game that requires players to fill a 9x9 grid with numbers from 1 to 9, using logic and deduction. With its increasing difficulty levels, this book is suitable for Sudoku enthusiasts of all levels and ages, and provides hours of entertainment and brain-stimulating challenges.