Logic Masters Deutschland e.V.

A Delicate Balance (see-saw lines)

(Published on 8. October 2026, 22:44 by UncleLogic)

A Delicate Balance is a variant Sudoku using See-Saw Lines.

Sudoku:
Place the digits 1–9 in every row, column, and 3×3 box, with no repeats.

See-Saw Lines:
Along each orange line, the sums of adjacent pairs alternate between being less than 10 and greater than 10.
For example, a line may alternate <10, >10, <10, >10, or the reverse.
No adjacent pair on a See-Saw Line may sum to exactly 10.

Play online:
Solve in SudokuPad

I hope you enjoy it!

More puzzles by me can be found at UncleLogic.com.

Solution code: Enter Row 5 from Left to Right

Last changed on on 9. October 2026, 19:56

Solved by lootyloot, sacklunch, nunc, stqrlight618, dumfries, Decapod, jalebc, junwoo, DanishDynamite, PippoForte, Babsi132, MegTheEgg, ryanprobably, allenz0rz, aeck18, Mattzoid, buttons, Aleon, farodin64, tjmac28, Crul, sakulayueer, ghostmary, kangaroo, meowme, ninamitn, DetroitPiston, ringel, JVA, Jesper, macmillan333, Nonio7
Full list

Comments

on 13. October 2026, 10:13 by JVA
Nice idea, but man, does it make you sweat to place every digit on the lines

on 9. October 2026, 19:56 by UncleLogic
Sorry! I fat fingered the solution code text! I have updated it.

on 9. October 2026, 06:43 by Decapod
Solution code is still wrong (enter row 5, not 6).

Interesting constraint that I hadn't used before. Nice puzzle.

on 9. October 2026, 03:33 by stqrlight618
Thanks lootyloot, I would suggest adding not equal to 10, even though it is technically unnecessary.

on 9. October 2026, 00:17 by lootyloot
Great puzzle, the solution code is Row 5 instead of 6

Difficulty:2
Rating:94 %
Solved:32 times
Observed:0 times
ID:000VEH

Variant combination Online solving tool

Enter solution

Solution code:

Login