200 fun easy to moderate sudoku puzzles for brain gym. Great Christmas gift for sudoku lovers. 200 fun and easy with solution provide at the back of the book. LOTS of puzzles: 100 Easy, 100 Moderate with the solutions at the back. 2 Big puzzles on each page gives you space to note. Easy to tear out to grab and go. Large print on white paper. Size 8.5x11 similar A4 size but shorter in height. So many volume versions of your choices, the game inside not duplicate you can buy for the Christmas gift as much as for your need!! Or can get more than one book in the same vol. and arrange a friend challenge for Christmas Party. Let's start to enjoy this Sudoku simple for your brain gym and have fun.!!