Flutter-by
(Published on 2. June 2026, 16:12 by Dr Logic)
Preamble
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This puzzle was inspired and created for June's Monthly puzzle prompt over on the CTC discord.
Let me know what you thought of it in the comments!
A colourblind friendly grid has also been provided with each line labelled.
Happy solving!
Dr Logic
Rules:
- Normal sudoku rules apply.
- All constraints are given as standard:
- Region Sum Lines: Along blue lines, box borders divide the line into segments that all sum to the same total. This total is not necessarily the same for different lines.
- Renban Lines: Digits along purple lines form a non-repeating consecutive set of digits, in any order.
- German Whispers Lines: Adjacent digits along green lines must differ by at least 5.
- Ratio kropki: Digits separated by black dots are in a 1:2 ratio.
- Consecutive kropki: Digits separated by white dots are consecutive.
- No negative constraint on dots.
If you liked this puzzle I am sure you would LOVE another puzzle by me! The puzzle below is a 3 star puzzle that requires small amounts of arithmetic. Please enjoy!
Solution code: Row 8 followed by Row 9
Solved by jalebc, SKORP17, keenbowl, L00ping007, Krisonium, Malakree, Crusader175, Myfyr MJ, sanabas, jez9999, Photyne
Comments
on 7. June 2026, 15:01 by jez9999
Fiendish. Also, for me, required some bifurcation to distinguish the totals of the large region sum lines.
on 5. June 2026, 22:03 by Myfyr MJ
Very nice but very difficult to solve the two longest region sum lines - 64 minutes, ouch!
on 3. June 2026, 18:47 by keenbowl
I guess that one is not 2*? Or is everybody missing something obvious?
