For each of five 9x9 grids; place the digits 1 to 9 in every row, column and 3x3 standard block. Besides grey painted cells form renban groups. These groups must hold consecutive digits, in any order.
Solution code: The marked column, followed by the marked row.
on 15. August 2021, 23:23 by zhergan
Tags revision..
on 14. August 2010, 11:39 by ibag
Nice one!
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