Logic Masters Deutschland e.V.

GAS Pump

(Published on 7. September 2026, 22:23 by lgastako)

Here's another quick little GAS. I hope you enjoy. As always, feedback is welcomed and encouraged.

  • Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each.
  • German Whispers: Along green lines, digits must differ from their neighbors by at least 5.
  • Dutch Whispers: Along orange lines, digits must differ from their neighbors by at least 4.
  • Renban: Purple lines contain a non-repeating set of consecutive digits in any order.
  • Palindrome Lines: Digits along a gray palindrome line must read the same forwards and backwards in either direction.
  • V: Cells separated by V must sum to 5.
  • Negative Diagonal: Digits along the negative diagonal (R1C1 to R9C9) must be unique.

Play online using Sudokupad

Solution code: Row 6 from left to right.


Solved by forsen, sparkymanu, Mutiny, flaemmchen, Decapod, nunc, em0748, benvegmond, CatusDC, fuxia, L00ping007, MarthaB, aldango, allama, sujoyku, Elizy, andylis0305, Miatc, DiegoDsD, macintux, raaaaa, ... Tompzini, Crul, turtleducktess, buffygoth, cegie, lordtom, Montikulum, Supalea, pmatos, koiking, SS20x3, Gilma, BMP.Freak, illicitonion, NEWS, Aleon, MorsBe, lueluelue, waldomiro, tetchytomcat
Full list

Comments

on 9. September 2026, 22:03 by ofsmul
I enjoyed that! 6 minute solve time, but maybe just a bit too overloaded to call a GAS, IMO.

on 9. September 2026, 00:49 by Ceramics-Quintet6
took 20 minutes

on 8. September 2026, 18:39 by Supertaster
Good puzzle, but above GAS level.

on 8. September 2026, 15:17 by Inge
That was fun, thank you

on 8. September 2026, 13:15 by anothermember
Very nice puzzle. Quite tricky though, I wouldn't call it a GAS unless there's some piece of obvious logic I missed and didn't use.

on 8. September 2026, 09:05 by Peteronium
Exquisite puzzle

on 8. September 2026, 03:51 by darylkay
I didn't think about how the diagonal rules interact, and it turned it into a fun 3/4 star puzzle that took 40 minutes with colors until I finally realized I missed something lol, fun puzzle

on 8. September 2026, 03:11 by macintux
Quite fun, slowed down a bit by the fact that there was so much information to keep track of. A good problem to have.

Difficulty:1
Rating:94 %
Solved:183 times
Observed:0 times
ID:000UPU

Enter solution

Solution code:

Login