*** a SUDOKU PUZZLE 600 Challenging Puzzles with Answers EASY to HARD LEVEL *
Subtitle: *** A_SUDOKU_PUZZLE _ 600_Challenging_Puzzles_with_Answers_EASY_TO_ HARD_LEVEL *
Publisher: CreateSpace Independent Publishing Platform
Published: 2017
Language: eng
Number of pages: 314
ISBN-13: 9781543059779