Inside our book will find 3000 challenging extreme sudoku puzzles! It will definitely provide lots of hours of fun and brain exercises! Book is recommended for experienced puzzlers. Each page contains 8 sudoku grids, at the end of the book we placed sudoku's solutions. Our book is also made of a very good quality paper. Don't wait, grab your pen and challenge yourself! Great Christmas or Birthday gift idea. Visit LogiMindBooks author Page to see other book releases and click follow to receive notification each time we publish a new book. ★★★ BOOK DETAILS ★★★ Size: 8.5 x 11 Inches 3000 Very Hard Puzzles 8 puzzles per page Paper: White Cover: Glossy