Aura
(Published on 5. October 2025, 20:41 by Gerhard1963)
Aura
Here is my third quartet lines puzzle. This is my best one so far, I'd say.
Rules:
- Standard sudoku rules apply: The digits 1
through 9 appear in every row, column, and
box.
- Quartet Lines: Red lines may have no more than 4 different digits.
- Cages: Digits in cages cannot repeat and
must sum to the value shown in the upper
left corner of the cage.
SudokuPad
My Puzzle Catalogue

Solution code: The digits on the positive diagonal (from bottom left to top right).
Solved by Harold, Duarte-Carvalho, jalebc, SKORP17, ludvigr04, NorthCoastAsher, forsen, OutOfMyMindBRB, josemadre, Gnubeutel, trencaclosques, maniacaljackal, Testpilot Pirx, Debba, e5ten, Kigor, DeckersYay, ... stafen, Tompzini, Nonio7, yusuf17, Zibl, H.I. McDunnough, Voidslime, mezkur7, allama, dielilla, Gizmo, Frank Puzzles, zilla, Slumped_5, Lovejoy , AlexRaetselt, OBu42, neroute2, Selsted, Zarlino, Uhu
Comments
on 8. October 2025, 03:52 by TeddieMilo
Something new for me.. very nice and relaxing puzzle. TQ!
on 6. October 2025, 17:43 by sujoyku
Wonderful puzzle! Thank you, Gerhard1963!