Logical book. Killer sudoku. Chain puzzles. Hard - extreme levels.
Subtitle: For adults.
Publisher: Independently published; Independently Published
Published: Aug 05, 2019
Format: paperback
Number of pages: 155
ISBN-13: 9781088514573
Notes: Source title: Logical book. Killer sudoku. Chain puzzles. Hard - extreme levels.: For adults. (Killer sudoku and his friends)