Become a master in solving Shikaku. You will experience Shikaku 21x21, Shikaku 26x26 and Shikaku 30x30. You get the perfect mix of different sizes of Shikaku to keep you entertained for weeks. After solving all the puzzles in this book, you will be a Shikaku Pro. You start with easy Shikaku puzzles, which keep getting bigger and bigger and you gradually build your way up to extremely hard Shikaku puzzles. Once you pick up this book, you won't be able to put it back down. You have been warned! Only 1 large print puzzle per page, with lots of white space for scribbling. Shikaku Mixed Grids - Easy to Hard is a collection of 156 puzzles: The goal of Shikaku is to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle. I guarantee that every logic puzzle in this Shikaku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution. Shikaku is also known as Divide by Squares, Divide by Box, Number Area.