Orientation
(Published on 26. April 2026, 18:46 by zetamath)
Normal sudoku rules apply.
Rossini: Arrows indicate the direction in which the first three digits in that row or column (nearest the arrow) increase or decrease. For instance, r7c1 is less than r7c2 is less than r7c3. If no arrow appears adjacent to a row or column, the three nearest digits must not be in increasing or decreasing order (that is, the central digit must be the highest or lowest).
Have fun, leave a comment if you enjoy the puzzle!
PS: I stream solving sudoku like puzzles on Sundays, as well as posting Let's Plays of puzzle games like Blue Prince. You can check out the channel, as well as some videos I have made about setting puzzles, at my YouTube channel here.
Solution code: Row 8
Comments
on 6. May 2026, 00:55 by ViKingPrime
Really happy to see Rossini arrows make a sudden resurgence. Its such an interesting constraint.
on 6. May 2026, 00:25 by MikeMeech
I'm confused by the rules saying increase or decrease. If it could be either one, couldn't the arrow point in either direction?
Based on your example, I'm guessing the direction of the arrow always indicates which way it increases. Is that correct?
[Yes that's right, sorry I could have been clearer! -z]
Thanks so much, I really appreciate the clarification!
on 5. May 2026, 01:10 by Mgbator
This was really fun. Many thanks.
on 30. April 2026, 09:30 by Crusader175
Fun puzzle!
on 28. April 2026, 12:55 by Franjo
Thank you very much for creating and sharing this wonderful puzzle. And for reminding us of the old Rossini- constraint in such a perfect setting.
on 27. April 2026, 22:45 by blackjackfitz
Huzzah!
on 27. April 2026, 20:52 by Moonsinh
Absolutely stunning logic, the way the deductions race across the grid feels like an intricate dance, and there was always another thread to pull on somewhere until the whole thing unravelled.
on 27. April 2026, 16:40 by FullHouse07
This was one of the best sudokus I've ever solved.
on 27. April 2026, 16:31 by pms_headache
Very nice, clean solve. Can I offer a suggestion for the rules? The arrow indicates the direction of increase, not increase or decrease. Thx for another entertaining puzzle!
on 27. April 2026, 03:37 by egglet
was tedious in the beginning but i enjoyed it as i got into a groove. until i embarrassingly missed out a really obvious step in my way & got stuck for over an hour. was still really fun
on 26. April 2026, 22:38 by Piatato
I'm always a bit surprised at how much I enjoy Rossini sudokus. Fun!
on 26. April 2026, 21:19 by wuc
What s refreshing puzzle. New to me too. Very rewarding. Great fun thx.
on 26. April 2026, 19:13 by Dr Logic
Interesting rule set, never seen these arrows before! Thank you for the great puzzle!
