Observer Killer Sudoku
Source: Life and style | guardian.co.uk
Fill the grid using the numbers 1 to 9. Each number must appear just once in every row, column and 3×3 box.Buy next week’s Observer or subscribe to our Digital Edition to see the completed puzzle.guardian.co.uk © Guardian News & Media Limited 2010 | Use of this content is subject to our Terms & Conditions | More Feeds
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