Wingspan
(Published on 9. March 2026, 08:00 by Kaktuslav)
Rules: Normal sudoku rules apply. Region sum lines: Box borders divide each blue line into segments with the same sum.
Solution code: Column 4
Comments
on 1. April 2026, 23:45 by greebug
Stunning! Thank you for the excellent construction.
on 15. March 2026, 16:37 by Klausku
Wow. Probably the bet region sum lines puzzle that I have done so far. Thanks!
on 12. March 2026, 14:52 by henrypijames
How does this fairly difficulty puzzle get so many solves in a few days - without being featured on CtC?!
on 11. March 2026, 20:39 by a2k
Wouw, amazing. Loved it!
on 11. March 2026, 05:17 by skuntsel
Kaktuslav has a rare gift to produce extraordinary puzzles. Even on terra cognita like region sums where it seemed that nothing novel can be done. Stunning ambiguity elimination and great resolution thereafter. Props to you!
on 10. March 2026, 18:33 by Djirt
Спасибо, настоящая жемчужина!
on 10. March 2026, 16:18 by GeorgeTheToad2
I wonder if Simon will attempt this beautiful puzzle. Harder than most region sum lines but the number of wow moments made it worth while. Fantastic setting.
on 10. March 2026, 13:00 by hundertzwoelf
One of my favorite RSL puzzles of all times. Kaktuslav, you're really a master of your trade.
on 10. March 2026, 12:27 by Chaka
Absolutely fantastic! I love RSL puzzles in general but for me this one is one of the best so far! Thanks a lot for sharing, Kaktuslav.
on 10. March 2026, 02:33 by fitiavana
Amazing puzzle ! Thank you
on 9. March 2026, 19:38 by Exigus
Fantastic region sums with really cool symmetry. Thanks!
on 9. March 2026, 17:04 by Snookerfan
Brilliant puzzle! Really fun disambiguation between the wings. Thanks
on 9. March 2026, 15:28 by pep9
Incredible puzzle! For sure one of the most enjoyable ones for me.
on 9. March 2026, 13:20 by Franjo
Thank you very much for creating and sharing another beautiful puzzle. Maybe I was lucky looking at the right spots, so I gave 3*…
