Logic Masters Deutschland e.V.

Rainbow Constraint

(Eingestellt am 17. Juni 2025, 00:02 Uhr von ebiggie)

RULE SET:

Normal Sudoku rules apply. Place the digits 1 through 9 in each row, column, and box.

KROPKI: Cells separated by a black dot are a 1:2 ratio. ALL dots are given! There is a negative constraint for black dots in this puzzle.

KILLER CAGES: The sum of the cells in a cage must equal the total given for that cage. Digits in a cage do not repeat.

DUTCH WHISPER (ORANGE): Adjacent digits along the orange Dutch Whispers line must differ by at least 4. Digits may repeat if other rules allow.

PALINDROME (GREY): Digits along the grey palindrome line must read the same forwards and backwards.

GERMAN WHISPER (GREEN): Adjacent digits along the green German Whispers line must differ by at least 5. Digits may repeat if other rules allow.

REGION SUM LINE (BLUE): Box borders divide the blue line into segments of the same sum of values.

RENBAN (PURPLE): Digits along the purple Renban line must be a set of consecutive non-repeating digits, and may appear in any order.


For our color blind friends:

There's only one of each line type in the puzzle.

From left to right: Dutch Whisper, Palindrome, German Whisper, RSL, Renban.


Click the Link to Play: Sudokupad


Lösungscode: Please provide the digits from row 9 (left to right):


Gelöst von AnebodaSlatorp, BrendanD, GorgeousNicko, MarthaB, sujoyku, bbutrosghali, maniacaljackal, sacklunch, gonzalez87, 9x9, Dermerlin, Willkimo, RussKozerski, mathpesto, RedBarchetta, Pairot, sze, ... mogest, stafen, iWoodyy, emertrdgkh, Zarlino, Xinory, moss, Baconator, PalkaSalyami, mkx, pepe74287, byale, jjtheplum, meowng, geronimo92, radium, frosto, imperius, Qtpie, Snue, jsxft, konfetti
Komplette Liste

Kommentare

am 26. Juli 2025, 10:08 Uhr von frosto
ahhhh, the negative constraint...
Once you remember it it flows like a charm.
Very nice puzzle.

Zuletzt geändert am 23. Juni 2025, 11:37 Uhr

am 23. Juni 2025, 11:36 Uhr von TommiH
Lovely puzzle! That negative constraint cannot be emphasised any better (unless Sven implements a flashing text that hovers on top of the puzzle all the time) and even though I totally knew it was ther I was at times trying to solve the puzzle without using it, making it harder for myself. Silly brain. Anyway, great puzzle!

am 19. Juni 2025, 22:19 Uhr von ebiggie
Wow! I can't believe so many missed the negative constraint rule. I will heavily highlight that in the rule set for future puzzles! Thank you everyone for all the comments :)

am 19. Juni 2025, 15:34 Uhr von JVA
darn negative constraint

am 19. Juni 2025, 00:33 Uhr von maiaz
If you get stuck just before the end, you've forgotten the negative constraint. It's almost (but not quite) possible to solve without it.

Probably worth putting in something to highlight the negative constraint given how many comments are about misssing it.

am 19. Juni 2025, 00:32 Uhr von maiaz
If you get stuck just before the end, you've forgotten the negative constraint. It's almost (but not quite) possible to solve without it.

am 18. Juni 2025, 13:32 Uhr von TeddieMilo
Missed the negative constraint. Very nice.

am 18. Juni 2025, 05:49 Uhr von gregui
Very cool looking! And also nicely done. I spent way longer than I should have for not reading the rules entirely :/

am 18. Juni 2025, 03:48 Uhr von shikage5
Reading comprehension will be the death of me -_-. Great puzzle once I knew what I was doing

am 18. Juni 2025, 00:22 Uhr von garycblack
just the last 4 cells before the negative constraint was required. I knew I missed something when I saw the deadly pattern!

am 17. Juni 2025, 20:51 Uhr von josemadre
Negative constraint...reading is fundamental, I feel silly

am 17. Juni 2025, 19:39 Uhr von Myfyr MJ
Very nice and easy puzzle

am 17. Juni 2025, 16:05 Uhr von PinkNickels
I made this one so much harder by not reading the rules carefully. LOL

am 17. Juni 2025, 01:22 Uhr von bbutrosghali
This was much easier once I fully read the rules

am 17. Juni 2025, 01:14 Uhr von sujoyku
Same here. Re-reading rules made it much less impossible. :)
Thank you for the fun puzzle, ebiggie!

am 17. Juni 2025, 01:13 Uhr von BrendanD
Oops..missed that! Sorry

am 17. Juni 2025, 01:04 Uhr von GorgeousNicko
@BrendanD

No, there isn't - but you may need to read the rules again. I certainly did!

Schwierigkeit:1
Bewertung:95 %
Gelöst:224 mal
Beobachtet:2 mal
ID:000MXK

Standardrätsel Rätselvariante Variantenkombination

Lösung abgeben

Lösungscode:

Anmelden