it's education for your kids.
Every with 30page not include answer page.
saiz as same as a A4 paper size.
It is fun to play.
3pcs sudoku
Challenge your puzzle-soloving skills with these large-print Sudoku Each volume contains 100 mind-sharpening Sudoku puzzles progressing from Easy , to Medium , to Hard levels of difficulty. So , sharpen your pencil - or be daring and use a pen! - and test your skill !