Cubism? (Region Sum Lines)
(Published on 28. August 2025, 04:37 by tallcat)
Normal sudoku rules apply
Region Sum Lines: Box borders divide each blue line into segments with the same sum. Different lines may have different sums.
Can be played online at f-puzzles and Sudokupad
Solution code: Column 7 (Top to bottom; 9 digits, no spaces)
Comments
yesterday, 21:18 by BorisTheSnake
Love love loved this one! Puzzles like this are the reason I love sudoku. Constant challenge until the very end, but so logical and transparent.
on 31. August 2025, 18:05 by Phistomefel
Such wonderful ideas in there! Thanks a lot for constructing this beauty, tallcat!
on 30. August 2025, 00:27 by Christounet
Well worth the year and a half of maturation! Opening is beautifully crafted and the remaining clues bring the whole thing to a satisfying conclusion. Thanks :)
on 29. August 2025, 13:37 by Black_Doom
Wow. Just wow
on 29. August 2025, 06:19 by Piatato
Very neat!
on 29. August 2025, 04:15 by Agent
Wow! It's rare that a variant sudoku impresses me nowadays, but this one did.
on 28. August 2025, 23:46 by Djirt
Спасибо, великолепный пазл!)
on 28. August 2025, 21:29 by Exigus
Very nice construction, some digits almost dancing into place (even though that makes it sound easier than it was). Thanks!
on 28. August 2025, 19:00 by keenbowl
Just phenomenal, chapeau!
on 28. August 2025, 18:16 by Treme
Very nice! I found it hard but soldiered through, thank you
on 28. August 2025, 16:17 by Franjo
Absolutely fascinating! I think the amazing break-in was the original idea, but the rest of the setting isn’t less admirable. Thank you very much for creating and sharing this fantastic puzzle.
on 28. August 2025, 15:30 by rameshsrivats
Beautiful puzzle. Delightfully clever break-in and super smooth after that.
on 28. August 2025, 12:02 by bboom
Frankly still not quite sure what the idea was that led to this puzzle, but I did enjoy solving it. Never easy, but always some place to chip away at options until you find a new limitation.
on 28. August 2025, 10:27 by Snookerfan
Clever setup in an approachable puzzle, thank you!
