Evil Sudoku Puzzle Books | Hard to Extra Hard Challenges

Sudoku puzzles are highly addictive because the instructions are unchanging regardless of the degree of difficulty. for this set, however, expect to work on hard to extra hard challenges. remember that sudoku does not come with clues so you really have to figure out the answers on your own. of course, there's no rule saying you can't ask help. you definitely can! senor sudoku is an imprint of editorial imagen llc. senor sudoku specializes in creating sudoku puzzle books, crossword puzzle books and word game books for both kids and adults. our puzzle books are designed to help our users improve memory, stimulate their minds with mathematical and word puzzles, learn fast problem-solving techniques, help improve concentration and most importantly helps adults and children of all ages have as much fun as possible. pick up a copy of any of these fantastic puzzle books today!