Famous Frog Sudoku 2,000 Puzzles, 1,000 Hard and 1,000 Very Hard
Subtitle: Largest Sudoku Puzzle Book Ever with Only Two Levels of Difficulty to Take Your Playing to the Next Level. Great Gift for Sudoku Enthusiasts!
Publisher: CreateSpace Independent Publishing Platform
Published: 2016
Language: eng
Number of pages: 678
ISBN-13: 9781540791405