Logic Masters Deutschland e.V.

Zippery When Wet

(Eingestellt am 20. November 2023, 03:01 Uhr von marty_sears)


  • Normal sudoku rules apply.

  • Each cell is either land or water.
  • All cells of the same type must be orthogonally connected.
  • No 2x2 area may be entirely land or entirely water.

  •  Renban  (pink) - Digits on a pink line don't repeat, and form a consecutive sequence, but these can be arranged in any order along the line.
  •  Nabner  (yellow) - A digit on a yellow line cannot be consecutive with (or the same as) any other digit anywhere on the line.
  •  German Whisper  (green) - Adjacent digits on a green line must have a difference of at least 5.
  •  Region sum  (blue) - Digits along a blue line must have the same total within each 3x3 box.
  •  Parity  (red) - Digits along a red line must alternate between odd and even.
  •  Entropic  (orange) - Any group of 3 adjacent digits on an orange line must contain a low digit (1, 2 or 3), a medium digit (4, 5 or 6), and a high digit (7, 8 or 9).
  •  Palindrome  (grey) - A grey line must read the same in either direction.
  •  Same Difference  (turquoise) - Each pair of adjacent digits along a turquoise line must have the same difference.

  • Any line that is completely wet (only entering water cells) loses the property of its presenting colour, and instead becomes a zipper line. Along a zipper line, each pair of digits that are the same distance from the line's central cell, sum to the digit in that centre cell.
  • Any line that is completely dry (only entering land cells) behaves normally, as described in the list above. It does not behave like a zipper line.
  • If a line is partly dry and partly wet, it retains its presenting property, but it is ALSO a zipper line as well.

Click here to play on the CTC app

Click here to play the colourblind-friendly version

Please leave a comment if you enjoy :)

Lösungscode: Water cells in column 1 (reading downwards) followed by water cells in column 2 (reading downwards)

Zuletzt geändert am 21. November 2023, 12:48 Uhr

Gelöst von WedgeOfCheese, gdc, RJBlarmo, SeveNateNine, tuturitu, by81996672, lmdemasi, Sonki, efnenu, Franjo, ViKingPrime, Tompzini, Laake, Fool on Hill, bansalsaab, henrypijames, Paletron, vitaminz, ClarityC, ... h5663454, RubberMittens, GoogleEnPassant, TripleABattery, Stevoid31, polcat, Kaheda, Kallor, dogfarts, MaNCS, Cyanogenoid, jacques_, elpadrinoIV, sorryimLate, karlmortenlunna, jellef, MusicGusto
Komplette Liste


am 20. Dezember 2023, 23:33 Uhr von RubberMittens
Incredible puzzle. Very hard but super enjoyable.

am 9. Dezember 2023, 06:19 Uhr von blackjackfitz

am 23. November 2023, 17:10 Uhr von simoons
Excellent puzzle.
I broke it twice at the exact same place before finally understanding what I did wrong :D

am 23. November 2023, 01:59 Uhr von Ratfinkz
Beautiful puzzle! Broke it more times than I care to admit, but thoroughly enjoyed, thank you!

am 22. November 2023, 21:20 Uhr von anyeyeball
Brilliant puzzle. Very challenging and simple at the same time. I would be very surprised if this was not featured on the CTC channel before the week is out. Thank you for an unforgettable puzzle.

am 22. November 2023, 14:37 Uhr von madhupt
This is an amazing puzzle! Such fun to solve but very hard, at least for me. It took mea long time but once the logic is clear, it felt so smooth. Thanks a lot for sharing this.

am 21. November 2023, 20:26 Uhr von Al Fresco
Lovely interactions. Thank you

am 21. November 2023, 12:14 Uhr von ThePedallingPianist
I'm not at all surprised to see this puzzle inundated with genuflecting comments - another masterpiece by Marty, full of unbelievable creativity!

am 21. November 2023, 11:28 Uhr von Snookerfan
Gorgeous puzzle! Thank you

am 20. November 2023, 23:27 Uhr von BHUNTER47
Fantastic ruleset.

am 20. November 2023, 23:20 Uhr von KNT
extremely fun sudoku! and approachable, too (despite the lengthy rules)

am 20. November 2023, 21:48 Uhr von vitaminz
Very hard for me in the mid-solve but glad I persevered. Some beautiful stuff here.

am 20. November 2023, 18:48 Uhr von Laake
Very fun puzzle, pleasure to test this for you

am 20. November 2023, 18:18 Uhr von bansalsaab
Beautiful setting.

am 20. November 2023, 17:07 Uhr von henrypijames
My reaction after reading the rules was: Are you kidding me?! (I actually said that out loud.) How could one not try it right away when they see a puzzle like this?

am 20. November 2023, 17:00 Uhr von ViKingPrime
You don't need to read the comments to know what you're getting into with a Marty Sears puzzle - a brilliant, innovative puzzle that is both approachable but challenging, and rewarding when you crack it.

am 20. November 2023, 16:15 Uhr von Fool on Hill
That was a lovely puzzle to solve - lots going on, but all interesting.

am 20. November 2023, 13:15 Uhr von Franjo
Beautiful rainbow puzzle. I loved how the last YY-cells unfolded just in the end of the solve. Thank you so much for sharing this masterpiece.

am 20. November 2023, 12:10 Uhr von Sonki
Awesome puzzle, thanks :)

am 20. November 2023, 11:25 Uhr von by81996672
Very fun rule, I broke it several times due to my own negligence when doing the puzzle. But when I looked back after finishing, it was all due to my own lack of caution, and the puzzle itself was not that difficult. Thank you for setting up and looking forward to more good puzzles.

Zuletzt geändert am 20. November 2023, 13:52 Uhr

am 20. November 2023, 06:36 Uhr von SeveNateNine
This was very enjoyable to solve, Thanks!

Zuletzt geändert am 20. November 2023, 09:52 Uhr

am 20. November 2023, 04:38 Uhr von WedgeOfCheese
Fun puzzle, I like this ruleset!

Bewertung:99 %
Gelöst:80 mal
Beobachtet:3 mal


Lösung abgeben