Jigsaw Sudoku: 400 Medium to Hard Jigsaw Sudoku Puzzles (Paperback) (ISBN-13: 9781728684093)

Also the puzzle may contain the regions of random (irregular) shape; this variant is called Jigsaw Sudoku ("Geometry Sudoku," "Geometry Number Place," "Irregular Sudoku," "Kikagaku Nanpure").

Author: Mindful Puzzle Books
ISBN-10: 1728684099
ISBN-13: 9781728684093
Publisher: Independently Published
Language: English
Published: 10/11/2018
Pages: 232
Format: Paperback
Weight: 0.70lbs
Size: 9.00h x 6.00w x 0.49d