400 NUMBRICKS Puzzles 9 X 9 HARD - VERY HARD + BONUS 250 LABYRINTH 25 X 25
Subtitle: Sudoku with Hard - VERY HARD Levels Puzzles and a Labyrinth Very Hard Levels
Publisher: CreateSpace Independent Publishing Platform
Published: 2018
Language: eng
Number of pages: 104
ISBN-13: 9781727438789