Sudoku Puzzles for Adults : EASY, MEDIUM, HARD, 60 sudoku puzzles, difficulty 20-50, difficult sudokus, solutions for all puzzles, activity book for adults teenagers puzzles brain training (Series #1) (Paperback)

This challenging sudoku puzzles activity book for adults provides you with long hours of brain workout which will make you smarter!

There are 60 sudoku puzzles in total, which are organized into 4 difficulty categories - from the easy ("20") to hard ("50"). Take a look inside to see the examples. If you are not sure what kind of difficulty you should choose this activity book is perfect for you, because it will allow you to challenge sudokus at different difficulty levels.

There is one sudoku per page which gives you clear view on the whole puzzle and let you focus your mind on it. At the end of this activity book you can find the solutions to all of the sudokus - this might be helpful if you get stuck.

You will literally feel how your brain cells grow while trying to solve these sudokus, especially the harder ones. And when you finish this set of riddles - you can always choose the next one: )

We also highly recommend our maze puzzles for adults series! Take a look by clicking on the author's name, if that sounds interesting!