Place digits 1-3 in the grid so that in each row and column each digit appears three times. (Twice in the example.) Numbers in grey cells do not share an edge with a cell containing the same number. Numbers in white cells share an edge with at least one cell containing the same number.
Solution code: Row 7, followed by column 2.
on 24. July 2020, 10:31 by Lagavulin
Mal was anderes - hat richtig Spaß gemacht - Danke!
on 16. March 2014, 14:50 by SilBer
Sehr sehr schöne neue Rätselart!
on 7. February 2014, 19:42 by Richard
The (1) in the title implies more puzzle(s) of this type. :-)
on 7. February 2014, 17:10 by Rollo
Add an h and bring some more!
on 7. February 2014, 16:56 by pin7guin
Schöne neue Variante!
on 7. February 2014, 15:12 by flaemmchen
Hat mir sehr gut gefallen ... gibt es jetzt einen "Neigbour-Monat"?? Das wäre schön :-)
on 7. February 2014, 14:00 by ibag
Wirklich originelle Idee!
on 7. February 2014, 13:19 by CHalb
Very nice. Thanks for introducing this type to me. I'm sure there are steps in it I haven't recognized yet. So another one would be fine.