Logic Masters Deutschland e.V.

X---V*2

(Published on 21. March 2025, 08:00 by NurglesGift)

Normal sudoku rules apply.

Orthogonally adjacent cells can not sum to 5 or 10.

Digits in a cage can not be orthogonally adjacent with a consecutive digit.

Two lines of the same length and same color are connected X lines.

Counting from the bulb, the first cell of each connected X line sum to 10. the second cell of each line sum to 10 etc.

5 can never be on a line.

Link to sudokupad

Link to f-puzzle

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Feel free to recommend this puzzle to anyone.

Feel free to take special rules for your own puzzle.

Feel free to give feedback.

Bless you!

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Example

Solution code: give the digits of row 4 (left to right)

Last changed on -

Solved by Bjd, tgstar, Chlorophyll, ppdswiss, totem_mapr, akamchinjir, Danica, Dentones, mcc, Chelo, OutOfMyMindBRB, SKORP17, c373s, weiken, keesh, kmoter, Andrewmi3, harryb, Onkel_Dagobert, Elliott810, ... Villse, TroublesomeOrca, hanna_werner, by81996672, ZornsLemon, feverlute, lianarox, ryan_campbell2010, shteev, Csmith928, waltzoftheflowers, xrrx, xxxigua, ManuH, arauwer, Clairitin, separovich
Full list

Comments

on 13. April 2025, 06:12 by ClayLovesLogic
What a brilliant puzzle. This took just under two hours with on restart 20 minutes in. I filmed it so I will update this comment once I upload the video. Absolutely excellent. My first four star solve and it really made me think.

Last changed on 27. March 2025, 23:52

on 27. March 2025, 23:52 by LeaVulpina
These puzzles are both really, really lovely, although definitely quite tough! Around an hour for each of them. I weirdly found this second one easier? Although I possibly missed some intended logic, cos I did do a fair bit of look-ahead.

on 26. March 2025, 12:35 by NurglesGift
Thank you!

on 25. March 2025, 20:40 by puzzlepandit
This is really crazy. Till end I was not sure how this will have unique solution. But the twist at the end clears all the doubts. Great construction.

on 23. March 2025, 17:54 by AnebodaSlatorp
Thank you! I think my head just fell off though

on 22. March 2025, 14:55 by Bionic Cheese
Really like the connected X lines idea

on 21. March 2025, 18:29 by c373s
Really liked that one :)

on 21. March 2025, 16:22 by NurglesGift
As long as you had fun :)

on 21. March 2025, 14:31 by ppdswiss
This was a really tough one. LOTS of Algebra, LOTS of colouring, LOTS of jumping around the puzzle to find the opposite cells on lines that therefore add up to 10 . . . Over 3hrs on this with a couple of interruptions. But a really great puzzle

Difficulty:4
Rating:95 %
Solved:107 times
Observed:5 times
ID:000MI0

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