CalcuDoku
Subtitle: 250 Medium to Hard 9x9 Square Wisdom Puzzles
Publisher: Independently published; Independently Published
Published: May 20, 2019
Format: paperback
Number of pages: 144
ISBN-13: 9781099464867
Notes: Source title: CalcuDoku: 250 Medium to Hard 9x9 Square Wisdom Puzzles (KenDoku)