Sudoku Books 6x6 - Sudoku Book For Kids 6 by 6 Easy Medium Hard: Logic Games For
Each row and each column have only one and exacly one of each of the numbers 1,2,3,4,5,6Feature: This book contains 150 classic sudoku puzzles Sudoku puzzles grid size in the book are 6 x 6 that are played with six number 1,2,3,4,5,6.