Place the digits 1 to 9 in every row, column, 3x3 standard block. The numbers outside the grid are the sum of the digits in the row or column. While obtaining these sums, digits in white cells are counted as positive and digits in yellow cells are counted negative. Besides shaded cells form renban groups. These groups must hold consecutive numbers, in any order.
Solution code: Row 5, followed by column 7.
on 15. August 2021, 23:27 by zhergan
Tags revision..
on 17. February 2013, 12:09 by ibag
It would be a very nice puzzle with one ore two more hints. So it took me lots of T&E.
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