Sudoku Puzzle Books are a great way to stimulate the mind and challenge yourself. Sudoku Scientist, Winners Series puzzle books provide the level of difficulty that's comfortable for you. Feeling as if you can take on any obstacle? The Sudoku Scientist Advanced Edition is the perfect version for you to test your persistence. You deserve a round of applause if you can finish this edition correctly! Good luck! Whether just passing time with Sudoku puzzle books for adults or Sudoku for kids, you can't go wrong with this game enjoyed by many. If you enjoy an exciting challenge every now and then, you'll absolutely love Sudoku Scientist's Easy Edition puzzle book. Sudoku Scientist Advanced Edition brings the fun and challenge of Sudoku to you in Volume 4, the Winners Series. You'll find 200 puzzles for you to dive right into and solve at your leisure. Sudoku puzzle books get your mental juices flowing.