ISBN 9781699463543 books & textbook
Pocket Sudoku - a compact & travel-friendly puzzle book: only 4 x 6 inches in size | 5 Difficulty Levels | easy - normal - hard - very hard - extreme | 150+ Grids With Answers At The Back
Independently published /2019-10-12 Paperback / 108 Pages
isbn-10: 1699463549 / isbn-13: 9781699463543
