Entertainment Handy Version of Professor Ryuta Kawashima's 150 Day Puzzle

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Various Arts and Entertainment
5 minutes a day will make your brain younger! Train your brain power with various puzzles that are fun and can't be stopped such as Sudoku, connecting points, crosswords, searching for mistakes, mini black, etc. This puzzle to train your brain power is proposed by Professor Ryuta Kawashima of Tohoku University, a leading authority of BRAIN AGE: Train Your Brain in Minutes a Day!. It contains one question per day and 150 days' worth of puzzles to train your brain power. It is important to continue brain training! This book collects a wide variety of questions that you will want to work on while enjoying every day. You can feel the results of 5 months from the brain age check test at the beginning and end of the book. Because it is a handy version, you can enjoy it while waiting or while traveling.