Logic Masters Deutschland e.V.

Bermuda Triangle

(Eingestellt am 3. Mai 2023, 04:00 Uhr von XeonRisq)

The response from testing and solvers was quite positive for Remote Sums, so I continued to explore how far I could push the idea.
I have introduced another constraint but it mixes quite well and adds additional elements to the solve path.
Again, if you decide to give this new challenge a try, please let me know how your experience went, and of course.. ENJOY!!
  • Normal sudoku rules apply.
  • Remote Sums: A digit X in a cage points to a second digit Y located X cells away on its line. The number in the top left corner of the cage gives the sum of X+Y. (A cage on an intersection of lines is not required to fulfill the sum on both lines, but at least one.)
  • Unique Difference Lines: Adjacent digits along a line must have a unique difference. (Only applies to its own line.)
  • Numbers cannot repeat on the negative diagonal.
  • F-puzzles link - link to solve online
  • SudokuPad link - link to solve online

Lösungscode: Row 7 followed by Column 4

Zuletzt geändert am 5. Mai 2023, 20:22 Uhr

Gelöst von laky, Steven R, Gryllulus, Bellsita, SKORP17, kublai, Paquet Voleur, tangobunni, ScatterBrain, Bankey, Tulrak, marcmees, Samson, bansalsaab, Syzygy, Chilly, AvonD, dumediat, rmm466ss, Felis_Timon
Komplette Liste

Kommentare

Zuletzt geändert am 4. Juli 2023, 19:56 Uhr

am 30. Juni 2023, 15:19 Uhr von rmm466ss
The logic in this was masterfully incorporated! Thanks for the fun puzzle!
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You're quite welcome, and I do appreciate the solve and kind words.

Zuletzt geändert am 2. Juni 2023, 22:32 Uhr

am 20. Mai 2023, 05:02 Uhr von dumediat
I loved the interactions between the cages along lines, plus the global deduction needed is very cool. Thank you for sharing!
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Glad you enjoyed the puzzle, appreciate the solve and feedback.

Zuletzt geändert am 5. Mai 2023, 21:55 Uhr

am 5. Mai 2023, 17:11 Uhr von Chilly
Enjoyed that one - especially the 10-cell line ;)
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Thanks for the solve/feedback. I rather enjoyed that line myself!!

Zuletzt geändert am 4. Mai 2023, 20:50 Uhr

am 4. Mai 2023, 16:31 Uhr von Syzygy
Thank you so much for setting this! Really enjoyed this, with its interesting mechanic.
Lost myself down a rabbit hole of colouring cells, but I think that may have helped as this didn’t feel as mine bending as other 4’s that I’ve done. Thanks again, excellent work
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Thanks for the thorough feedback and the solve. I agree that this wasn't all that difficult, but with a couple of new rulesets, you have to allow for solvers to become accustomed to how they behave/interact.

Zuletzt geändert am 4. Mai 2023, 01:28 Uhr

am 3. Mai 2023, 22:54 Uhr von Tulrak
took me a long time because I was sure that my understanding of the unique difference lines rule breaks all the laws in the universe, but turns out that it didn't, very clever construction
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Appreciate the kind words and solve. The lines are a little awkward at first, but I feel that they grow on you as you work your way through the puzzle.

Zuletzt geändert am 4. Mai 2023, 01:27 Uhr

am 3. Mai 2023, 22:31 Uhr von Bankey
Fantastic puzzle! Thanks, @ XeonRisq :). Also, thanks for your reply to my query; i had in fact already started working on the latter basis, as the former looked infeasible. Thanks :)
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Thanks for giving the puzzle a shot and the feedback. Glad you enjoyed the puzzle and your intuition was correct about the rule; the lines are just too long for the same difference per line.

Zuletzt geändert am 3. Mai 2023, 20:15 Uhr

am 3. Mai 2023, 19:19 Uhr von Paquet Voleur
Lovely sequel! Thanks for setting this puzzle. I also enjoyed that it came with a new flavour (or constraint if you prefer that terminology, but I like flavour because it reminds me of ice cream).
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That's great to hear!! And thrilled you enjoyed the follow up puzzle. (And who doesn't love ice cream?!?)

Zuletzt geändert am 3. Mai 2023, 20:14 Uhr

am 3. Mai 2023, 19:14 Uhr von Bankey
Can you please clarify the unique difference rule? Does it mean that for a given line, every pair of adjacent digits along the line will have the same difference, say "x", and that "x" will have a different value for every line? Or, does it mean that every pair of digits along a line will have a difference that no other pair of adjacent digits along that particular line will have? It looks like the latter, but just asking to be sure. Thanks.
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It's the latter.
Example of good line segment : 1-3-8-4
Differences of 2-5-4 (all unique)
Example of bad line segment : 1-3-5-9
Differences of 2-2-4 (difference of 2 repeats)

Zuletzt geändert am 3. Mai 2023, 14:34 Uhr

am 3. Mai 2023, 14:12 Uhr von Steven R
A new (to me) constraint with some lovely interactions. Thanks for setting this :)
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You are quite welcome, and thanks for the solve/feedback.

Zuletzt geändert am 3. Mai 2023, 14:33 Uhr

am 3. Mai 2023, 10:52 Uhr von wilsig
Almost made it till the end. But code was not accepted. No idea, what I did wrong. I wonder about the "unique difference" of the top right angled line. There are 10 numbers on this line, i.e. 9 differences, which seems impossible.
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Sounds like you managed to work your way around the "triangle", but got tripped up on the additional line. If you give that line a little more thought, I'm sure things will fall into place. I assure you that this line does have a valid arrangement.

Zuletzt geändert am 3. Mai 2023, 15:09 Uhr

am 3. Mai 2023, 10:23 Uhr von laky
Wow,that's pretty interesting logic and amazing construction,but I think the potential of the combination of these rules is huge ,expect your next amazing puzzle ,maybe the next puzzle will have 5 stars difficulty(๑>؂<๑)
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Thanks for the detailed feedback and taking the time to solve this. Really glad you enjoyed the logic in this one.

Schwierigkeit:4
Bewertung:89 %
Gelöst:20 mal
Beobachtet:2 mal
ID:000DSA

Variantenkombination Online-Solving-Tool

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