Classical rules of sudoku,
Grey cells form renban groups. These groups must hold consecutive digits, in any order.
I'm preparing grids for a tournament. This one was not adapted for the tournament, but it is adapted for logic-masters.de (I hope).
Solution code: Row 4, followed by column 2.
on 16. August 2015, 16:26 by Joe Average
I'm sure it's pure coincidence, but I was a bit disturbed by the fact that the shape of the marked areas resembles a swastika. Maybe it would be better to mirror the design left to right?
on 8. March 2011, 10:26 by saskia-daniela
Danke schööön!
;-)
on 8. March 2011, 08:46 by ibag
@saskia-daniela: Glueckwunsch zur 1000! ;-)