Logical book. Killer sudoku. Chain puzzles. Extreme levels.
Subtitle: For adults.
Publisher: Independently Published; Independently published
Published: Aug 04, 2019
Format: paperback
Number of pages: 155
ISBN-13: 9781087402215
Notes: Source title: Logical book. Killer sudoku. Chain puzzles. Extreme levels.: For adults. (Killer sudoku and his friends)