Region Sum Lines Sudoku
(Eingestellt am 14. Januar 2022, 20:20 Uhr von Qodec)
Hat tip to rangsk for this fantastic constraint!
- Normal sudoku rules apply: Each row, column, and region indicated by thick borders in the grid must contain the digits 1 to 9 once each.
- Region sum lines: for each line, digits on the line have an equal sum N within each box it passes through. If a line passes through the same box more than once, each individual segment of such a line within that box sums to N separately. (There are no overlapping lines. Lines do not branch. When lines cross over each other at corners, they always go straight ahead.)
You can play this puzzle online using:
- CTC app: https://tinyurl.com/2p8ucay3
- f-puzzles: https://f-puzzles.com/?id=y2g4deps
Hope you'll enjoy!
Lösungscode: Row 5 and column 8. I.e. the 9 digits in row 5 from left to right, followed by the 9 digits in column 8 from top to bottom, for example: 123456789123456789
Kommentare
am 19. Juli 2024, 18:15 Uhr von StephenR
A very elegant construction, thanks.
am 15. November 2022, 19:50 Uhr von Richard
Lovely, but pretty tough puzzle. Thx!
am 5. September 2022, 00:59 Uhr von Christounet
Coloring was fun and the clues felt very precisely crafted to help at several stages of the souvent. Tanks.
am 21. März 2022, 22:08 Uhr von Aswen
Fantastic puzzle. Thank you for making it.
am 9. Februar 2022, 16:25 Uhr von Klausku
Beautiful construction and a smooth solving path. I really liked it. Thanks.
am 9. Februar 2022, 03:53 Uhr von apiyo
Love the puzzle Qodec! I reckon I would have just about matched Simon's time if I weren't even worse at scanning than him! =D
am 9. Februar 2022, 01:10 Uhr von kuraban
Lovely puzzle. Was genuinely surprised that was so easily solvable without a given digit, but everything comes together beautifully.
am 17. Januar 2022, 19:28 Uhr von Qodec
Thanks for the kind feedback everyone!
am 17. Januar 2022, 13:36 Uhr von stimim
Very cool puzzle, very enjoyed!
am 16. Januar 2022, 20:37 Uhr von Philipp Huber
Took me a long time, but I loved it!
am 15. Januar 2022, 15:42 Uhr von Manycoloredcoat
Great introduction to region sum lines sudoku, this is the puzzle I would recommend everyone new to the ruleset (unless there is an actual GAS I have missed) It was the first puzzle with this ruleset I managed to solve and while it definitely wasn't easy (3.5/5-4/5), every deduction still seemed quite fair and elegant. Of course I couldn't have solved this without watching a ton of CTC over the last year:D
am 15. Januar 2022, 15:24 Uhr von Kabuki73
Nice opening, than a bit tricky and finally a smooth finish! Loved it!
am 15. Januar 2022, 15:13 Uhr von abed hawila
Beautiful puzzle, loved it!
am 15. Januar 2022, 14:04 Uhr von Tilberg
Very, very nice, with some beautiful and eye-opening logic.
am 15. Januar 2022, 01:11 Uhr von tallcat
Stunning piece of work! Loved it.
am 14. Januar 2022, 22:31 Uhr von glum_hippo
It’s a gem
am 14. Januar 2022, 21:17 Uhr von Jesper
Good one, some really clever deductions, thanks!
am 14. Januar 2022, 21:13 Uhr von Playmaker6174
Lovely and very satisfying puzzle! The fact that this puzzle doesn't need a given digit really amuses me too :)
am 14. Januar 2022, 21:11 Uhr von Mad-Tyas
What a beautiful puzzle! Loved everything in it from start to finish. Thank you!
In my experience it was rather 3/5 for difficulty. But this is probably due to the experience from setting my Equalines puzzles.
