Spiral Sudoku in 2D with Renban Groups
(Published on 26. February 2010, 00:00 by zhergan)
Place the digits 1 to 9 in every row and column. Each digit must appear exactly once in the fields with same color. Besides shaded cells form renban groups. These groups must hold consecutive numbers, in any order.
Solution code: First enter the contents of column 5 followed by row 5, then give sum of the digits for each of 4 renban groups decreasing in order.
Comments
on 15. August 2021, 23:06 by zhergan
Tags revision..
on 8. April 2017, 02:26 by sf2l
Although I am seven years late, I also agree with Jörg
on 14. February 2011, 00:33 by Realshaggy
Although I'm one year late, Jörg is absolutely right :-)
on 19. March 2010, 13:16 by Statistica
It's always a great pleasure to find the logical way through your puzzles!!! Even it takes a lot of hours to see it... THX!
