Place the digits 1 to 9 in every row, column, 3x3 standard block. The cells along the grey painted line must form a palindromic sequence, such that the digits of the sequence must be identical in both directions. Besides blue painted cells form renban groups. These groups must hold consecutive digits, in any order.
Solution code: Row 3, followed by column 7.
on 16. August 2021, 00:37 by zhergan
Tags and labels revision..
on 30. October 2011, 05:32 by Richard
Thanks for this tough but nice puzzle!
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