Extreme Sudoku is the most difficult Sudoku book out there. The book feature over 100 Evil Level puzzles with the fewest numbers on the grid to begin. As you begin solving your cognitive abilities will be tested to its limits, you might reach a breaking point where you will find that on the last chapter we have some easy puzzles to stop you from falling out of love with Sudoku. Breakdown of Puzzles in this book; 30 Hard Level 70 Expert Level 120 Evil Level 30 Easy Level Solutions. Benefits of Solving Difficult Sudoku Puzzles: Mental Stimulation: Sudoku puzzles are an excellent workout for your brain. They challenge you to think critically, apply deductive reasoning, and improve your problem-solving abilities. Regularly engaging with Sudoku puzzles can enhance memory, concentration, and overall cognitive performance. Relaxation and Stress Relief: As you delve into the intricate patterns of Sudoku, you'll experience a sense of relaxation and focus. Solving puzzles can be a therapeutic escape from the demands of daily life, offering a tranquil oasis for your mind. Improved Numerical Skills: Sudoku requires a keen understanding of numbers and their relationships. As you progress through the puzzles, you'll develop a more intuitive grasp of numerical patterns and sequences. Boosted Confidence: With each completed puzzle, a sense of accomplishment washes over you, boosting your self-confidence and instilling a "can-do" attitude towards overcoming challenges in other areas of life. Mindful Meditative Practice: Engaging in Sudoku encourages mindfulness, as it demands your full attention in the present moment. This meditative practice fosters mental clarity and helps you develop better focus and patience. Update your progress on social media using #extremesudokujourney