Outside Sudoku and its variants

In this variant of sudoku puzzles, you start with a completely empty grid. It is up to you to solve all 81 cells! The clues, which are given outside the grid, tell you which numbers must appear in the first 3 cells of the same row (or column).


In addition to Outside sudoku puzzles, in this book you will also find Outside sudoku variants, including: outside jigsaw sudoku, outside consecutive sudoku, outside non-consecutive sudoku, outside hyper sudoku (windoku), outside odd/even sudoku and...