The Times Difficult Su Doku Book 4: 200 dreadfully tricky Su Doku puzzles

Difficult

by The Times Mind Games

Paperback

ISBN: 978-0-00-736451-0

ISBN-10: 0-00-736451-2

HarperCollins UK · 2011

See also:
2012PaperbackThe Times Difficult Su Doku Book 6: 200 dreadfully tricky Su Doku puzzles
2011PaperbackThe Times Difficult Su Doku Book 5: 200 dreadfully tricky Su Doku puzzles
2009PaperbackThe Times Difficult Su Doku Book 3: 200 dreadfully tricky Su Doku puzzles