Fill in the grid so that every row, every 9-cell diagonal and every 3x3 box contains digits 1 through 9. Also in the shorter diagonals all digits must be different. Besides there exist four renban groups, namely R1, R2, R3 and R4. These renban groups must hold consecutive digits, in any order.
Solution code: First enter the contents of row 2 and row 8, then give sum of the digits for each of 4 renban groups decreasing in order.
on 15. August 2021, 23:17 by zhergan
Tags revision..
on 12. May 2012, 22:22 by RobertBe
I have left this far too long; it is not so difficult as I had feared
on 26. July 2010, 16:30 by ibag
Puh, ganz schön schwer, hier die Übersicht zu behalten!
on 22. July 2010, 07:15 by logik66
What a hard work.
on 29. June 2010, 13:11 by Realshaggy
Very nice.
on 27. June 2010, 15:30 by flaemmchen
Hat mir ausgesprochen gut gefallen ... und rechtzeitig vor Deutschland : England fertig geworden :-)))
on 27. June 2010, 03:35 by Le Ahcim
Fetzt!