Created in 2010, Suko was the second of the puzzles created by Kobayaashi Studios to feature in the puzzle pages of national newspapers. Beginning in the Times and the Telegraph in 2011, Suko has gone from strength to strength, and now - twelve years later - features in newspapers and magazines around the UK, and internationally. This 'Third Collection' features 300 Suko puzzles of varying difficulty to test your grey matter and exercise your mental muscles. To play Suko, all you need to do is to place the numbers 1-9 in the spaces, so that the number in each circle is equal to the sum of the four surrounding spaces, and the totals for each coloured area are correct. Happy Puzzling!
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