When you buy this book you get an electronic version (PDF file) of the interior of this book.

Become a master in solving Frame Sudoku. After solving all the puzzles in this book, you will be a Frame Sudoku Pro. Once you pick up this book, you won't be able to put it back down. You have been warned!

Frame Sudoku is a collection of 276 puzzles:

The goal of Frame Sudoku is to fill in the empty cells, one number in each, so that each column, row, and region contains the numbers 1-9 exactly once. Numbers in the outside frame equal the sum of the first three numbers in the corresponding row or column in the given direction.

I guarantee that every logic puzzle in this Frame Sudoku puzzle book has been carefully checked to ensure that each puzzle has only 1 solution.

None of the puzzles in this book will appear in any of the other English PuzzleBooks.net books.

Frame Sudoku is also known as Outside Sum Sudoku.