Place the digits 1 to 9 in every row, column, 3x3 standard block and given blue painted cells. Besides grey painted cells form renban groups. These groups must hold consecutive numbers, in any order.
Solution code: Both diagonals, first the one from top left to the bottom right, then the one from top right to the bottom left.
on 15. August 2021, 23:51 by zhergan
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