Brain Boost Sudoku Puzzles

Train your brain and boost your memory, focus, concentration, and problem solving ability with our Brain Boost Sudoku Puzzles! Our book includes 200 handmade advanced level sudoku puzzles with solutions! With a purchase of our sudoku puzzles, you will not only give your brain a powerful boost, but you will also be helping orphans in Haiti. A portion of the proceeds from all Bella Donis sudoku and activity books is donated to children's homes in Haiti. Thank you for helping us make a difference in children's lives.