HHard Sudoku PuzzlesHard Sudoku Puzzlesde DjapeEdiciones (1)Hard Sudoku Puzzles (2016)CreateSpace Independent Publishing Platform · inglés · ISBN 9781534950894Más obras de DjapePPicross Griddlers Nonograms Hanjie BookPicross Griddlers Nonograms Hanjie BookLarge Print Word Fill-insThe Book of Number Searches