The Times Samurai Su Doku 3: 100 extreme puzzles for the fearless Su Doku warrior by The Times Mind Games (Paperback, 2014)

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AU $27.62

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  • Get it by Wed, 22 Apr - Mon, 4 May from Gloucester, United Kingdom
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This is Su Doku multiplied: every column, row and 3x3 box must contain the digits 1 to 9. Where the puzzles overlap, the rows and columns do not go beyond their usual 9x9 length but the interlocking boxes give you more clues - and more complexity.