Calcudoku Japanese Logic Puzzles: 180 Fun And Challenging 9x9 Logic Puzzles To Make You Smarter in a 6x9 Travel Size Edition/ Great Alternative To Sudoku Puzzle Books

Alternative

by Creative Logic Press

Paperback

ISBN: 978-1-0778-7413-8

ISBN-10: 1-0778-7413-8

Independently published · July 2019