Logic Masters Deutschland e.V.

Right Angles Wrong Quads

(Published on 7. June 2026, 00:00 by Scojo)

Rules:
  • Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
  • Anti-Quadruples: Digits in a red circle may not appear in any of the four cells touching that circle.
  • Zipper Lines: On lavender lines, pairs of digits equidistant from the center of the line sum to the digit in the center of the line.

Solve in SudokuPad

Solution code: Row 7

Last changed on -

Solved by StefanSch, jordanza, sircumnavigate, Calvinball, apendleton, aqjhs, jalebc, sedici, tuturitu, joelagibbs, selador31, FlashZange, damo_89, Wuschel, monononono, kehan628, Janie, Krisonium, Bjd, Nagesh, ... garage, koiking, abinchen, Kurogamo, donEsa, OGRussHood, Quidrex, roco, k2u5as, zee_zuper_beeg, seaweed, Ramez, erkiraak, Baconator, nirina, dp198879, TommyHMBK, AwesomePhoenix, Uhu, ninjamunk
Full list

Comments

Last changed on 14. September 2026, 09:10

on 14. September 2026, 09:08 by SirRanch
Haven't played a puzzle deserving of "very nice" in a while. I would rate it higher if I could. This was excellent. Thank You

on 12. September 2026, 13:11 by AnebodaSlatorp
Beautiful and a little bit head-spinning in a good way. Truly enjoyable.

on 11. September 2026, 23:37 by QuiltyAsCharged
Truly an elegant puzzle! If these quads are wrong I ain't anglin' to be right

Last changed on 11. September 2026, 23:39

on 11. September 2026, 23:29 by deleva
This is a cosmic class artwork.
Throughout my solve, I felt in awe of your astounding genius and creativity.

on 11. September 2026, 22:28 by ViKingPrime
One of the finest puzzles I have ever seen. This could very well be your best and that is truly saying something.

on 26. August 2026, 05:04 by Atticus837
That was a fun one! Really enjoyed the way the geometry seemed to feed deductions into itself.

on 25. August 2026, 02:45 by juggler
Classic Scojo puzzle. There was some really interesting Sudoku at the beginning, that was cool.

Last changed on 25. August 2026, 00:00

on 25. August 2026, 00:00 by sujoyku
Lovely puzzle! Beautiful geometry and excellent use of the zippers.
Thank you, Scojo!

on 11. June 2026, 16:50 by CitrusGremlin
Clever zipper lines! I'm surprised how well it all worked together.

on 9. June 2026, 03:43 by PinkNickels
Stupendous

on 8. June 2026, 14:08 by GrenP78
Great puzzle

on 7. June 2026, 18:14 by Franjo
Thank you very much for creating and sharing this awesome puzzle.

Difficulty:2
Rating:96 %
Solved:217 times
Observed:0 times
ID:000T4H

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