https://www.hachettebookgroup.com/titles/nikoli-publishing/expert-sudoku/9780761158356/?lens=workman-publishing-company
Hachette Book Group is a leading book publisher based in New York and a division of Hachette Livre, the third-largest publisher in the world.
hachette book groupexpert sudokunikolipublishing
https://www.lulu.com/shop/selzzup-puzzles/sudoku-puzzles-for-adults-2025-easy-to-expert-levels/paperback/product-e7ryymd.html
Unwind and stimulate your mind with this thoughtfully crafted Sudoku book, perfect for adults and seniors of all skill levels. Here's what you'll find inside:...
sudoku puzzlesadultseasyexpertlevels
https://www.hachettebookgroup.com/titles/peter-gordon/skill-builder-sudoku-hard-to-expert/9781454958888/
Hachette Book Group is a leading book publisher based in New York and a division of Hachette Livre, the third-largest publisher in the world.
skill buildersudoku hardpeter gordonexpertfrank