It`s GOLDEN SUDOKU - Champion Level - Very Hard - Vol. 27
Subtitle: 50 Sixstardoku + 50 Killer X Diagonal - Central Points + 50 Stepdoku X Diagonal + 50 Onefiguredoku + 50 Skyscraper - X Diagonal Anti-Knight. This Is Excellent Sudoku for You
Publisher: CreateSpace Independent Publishing Platform
Published: 2018
Language: eng
Number of pages: 150
ISBN-13: 9781719251143