Place the digits 1 to 9 in every row, column, 3x3 standard block and 4 extra regions painted with green. Besides grey painted cells form renban groups. These groups must hold consecutive numbers, in any order.
Solution code: Row 8, followed by column 5.
on 8. December 2024, 02:45 by PinkNickels
Actually quite a nice puzzle! Had to build it in FPuzzles, but well worth it.
on 16. August 2021, 00:53 by zhergan
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