The Times Codeword 5: 150 cracking logic puzzles (The Times Puzzle Books)
by Media, Puzzler Puzzler Media,
ISBN 13: 9780007516902
Format: paperback Publisher: Times Books
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The Times Difficult Su Doku Book 7: 200 dreadfully tricky Su Doku puzzles (The Times Su Doku)
by Puzzler Media
ISBN 13: 9780007516919
Format: Paperback (320 pages) Publisher: Collins Published: 08 Jan 2013