Hard Very Hard Sudoku for Adult 365 Sudoku Puzzle
Subtitle: Easy Medium Hard 365 Sudoku Puzzles for Adults. 9X9 Grid, 4 Puzzles per Page. Sudoku Instructions, Basic Strategy, and Solutions to Puzzles Included Improve Your Memory & Prevent Neurological Disorder
Publisher: Independently Published
Published: 2020
Language: eng
ISBN-13: 9781657405806