Place the digits 1 to 9 in every row, column, 3x3 standard block. All digits inside 4 extra windows (represented by dashed lines) must also be different. Two same digits can not touch each other diagonally. Besides yellow 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, 00:44 by zhergan
Tags and labels revision..
on 16. March 2014, 00:43 by Danielle
Very nice! I did not find a start, so I tried different cases. They all led to contradictions ;-) , but with it I understood the puzzle better and could solve it without case discrimination.
on 19. February 2014, 19:56 by CHalb
Great construction.
on 28. March 2013, 11:29 by Andre
Sehr schön! Und immer wieder eine Frage der Konzentration.
Danke
on 30. January 2013, 10:31 by Richard
Very interesting puzzle with only 8 givens. Brilliant!
on 26. January 2013, 20:04 by flaemmchen
Sehr schöne 3er-Kombi :-))
on 26. January 2013, 15:46 by zhergan
Hi to all. I've decided to add 3 more digits. Regards...
on 26. January 2013, 14:06 by zhergan
I've corrected it. Sorry for this mistake. Thanks for warning...
on 26. January 2013, 14:02 by dm_litv
It would be nice to see the solution code on the German page also :)