The Times Ultimate Killer Su Doku Book 7: 120 of the deadliest Su Doku puzzles (The Times Su Doku)
by The Times Mind Games, . . The Times Mind Games,
ISBN 13: 9780008127534
Format: paperback Publisher: HarperCollins UK
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The Times 2 Jumbo Crossword Book 10: 60 of the World’s Biggest Puzzles from the Times 2 (The Times Crosswords)
ISBN 13: 9780008127558