DDifficult Sudoku BookDifficult Sudoku Bookde DjapeEdiciones (1)Difficult Sudoku Book (2015)CreateSpace Independent Publishing Platform · inglés · ISBN 9781514117866Más obras de DjapePPicross Griddlers Nonograms Hanjie BookPicross Griddlers Nonograms Hanjie BookLarge Print Word Fill-insThe Book of Number Searches