XIVI Sudoku
Inspiriation for this type comes from WSC 2017.
Solve online in Penpa+ (thx Nick Smirnov!)
Place the digits from 1 to 9 in every row, column and 3x3-block. Adjacent cells with digits summing to 6 are marked by VI, while those summing to 11 are marked by XI. All possible VI and XI are marked.
Solution code: Row 4, followed by column 9.
on 23. August 2022, 06:19 by Richard
Added links and tag for online solving. Thx Nick!
on 27. September 2021, 19:26 by Nick Smirnov
Penpa:
https://git.io/Jz58s
on 28. December 2017, 05:59 by Richard
Thanks!
Typos fixed.
on 26. December 2017, 23:53 by azalozni
I wish you to continue this
marvelous series in 2018 and
more.
Pass auf: toT (in 1 tot 9) ist
zurueck seit #210 (in englischer version)
on 26. December 2017, 12:52 by HaSe
Leicht, aber wie immer sehr schön, Richard, frohes Fest noch und guten Rutsch. Kleiner Fehler in der Anleitung IX statt XI.