Logic Masters Deutschland e.V.

Gatekeeper

(Eingestellt am 27. März 2025, 13:26 Uhr von IcyFruit)

Normal sudoku rules apply.

Along a line, each set of 3 adjacent digits sums to multiple of 5.

Digits around a black dot must have a ratio of 2:1.

Play online (SudokuPad)

Lösungscode: Column 9

Zuletzt geändert -

Gelöst von Yaoning, CaballeroOscuro, krytolandros, SKORP17, Jesper, Fool on Hill, TripleABattery, Tilberg, tangobunni, AzureFire, SincereEngineer, Bjd, Elliott810, smckinley, Da Letter El, byeler, ManlyPebbles, ... MikeMeech, morgannamodeaura, SudokuHero, Jackler, MonsieurTRISTE, feverlute, Ramez, Dentones, Uhu, Hazem-77, SirJefferE, Reenolex, Default, willi, Chishiri, dennischen, pescirope, lmdemasi, mang0
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Kommentare

am 21. April 2025, 21:07 Uhr von Jackler
Feels like people are yanking my chain. Felt way easier than 5 stars.

Zuletzt geändert am 7. April 2025, 09:58 Uhr

am 2. April 2025, 09:23 Uhr von TheNineElements
Solve Time: 77:58

I rated this 4/5 difficulty.

This was an absolutely brilliant puzzle! It had some very beautiful geometric ideas, my favorite of which was showcased via the break-in. Additionally, this one was surprisingly approachable for puzzle that is considered "very hard", and I found the solve path to be fairly intuitive (meaning I " knew" where to focus) and very enjoyable.

To be completely honest, I generally don't gravitate towards this "type" of variant line rule (it isn't my 'favorite', though I don't actively avoid such rules or anything), but this puzzle was definitely an exception. When I say "type," I’m referring to variant line rules that group adjacent cells in a way that forces interactions between multiple [overlapping] subsets of digits within the line. Similar to entropic or modular lines (or possibly ten-sum lines). Either way, I found this implementation & use of the rule to be really engaging/fun.

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I found it hard to assign this puzzle an overall difficulty score. It was definitely within the 4-5* range, but I eventually landed on an overall 4* difficulty.

I think the early break-in was surprisingly straightforward/approachable (probably 3-4*). For some reason I got very stuck (for like 35 minutes with very slow progress) towards the bottom of the puzzle in the early midgame. I spent a very long time experimenting with different digit possibilities in box 8 to no avail, but after realizing I couldn't make significant progress with the line clue logic, I started scanning and realized that I had overlooked some very obvious/basic classic sudoku deductions. Had I simply thought to check for sudoku eliminations, my solve time probably would have been around 50 minutes.

Typically a puzzle taking me nearly 80 mins would almost certainly warrant a 5* difficulty rating. However, since nearly half of that time is a result of my failure to consider beginner sudoku rules, that rating really wouldn't reflect the actual difficulty/complexity of the logic. I really felt like the variant logic and "big ideas" for this puzzle were totally fair and did not feel particularly difficult at any point (once I got unstuck). I think an intermediate solver would have no issue understanding/tracking the logic and the puzzle would be 'doable' - though it would still be quite a hard puzzle. Based on these factors, I think 4* is probably a better reflection of the difficulty (IMO, of course).

Thanks for sharing!

am 29. März 2025, 17:50 Uhr von askaksaksask
Brilliant as ever. I felt the logic and solve path were much more accessible and flowy compared to previous entries like Taiga, but this puzzle is so much fun it would be a crime to pass this up. Thank you!

am 29. März 2025, 13:18 Uhr von BHUNTER47
Awesome ruleset. Don't think this puzzle is nearly 5 star difficulty, but it is still brilliant.

am 29. März 2025, 04:45 Uhr von waffles_the_dog
Fantastic break in, the logic flowed really nicely after the initial break in. Only problem I encountered was incorrectly leaving out an option in the line going through r9c5, *after* noting the option existed but then forgetting to actually think about it :D

Other than that hiccup none of the individual deductions seemed incredibly difficult, just a bit of care needed to not be a muppet like I was :D

am 28. März 2025, 20:35 Uhr von madhupt
Brilliant puzzle! Mighty happy that I could solve an @IcyFruit puzzle at one go. Thanks for sharing this.

am 28. März 2025, 12:10 Uhr von Snookerfan
Great puzzle! In my opinion the difficulty is 3 stars at most, because there are no really hard steps in the logic. The puzzle resolves very beautifully and smoothly, there were a lot of steps that made me smile. Thank you

am 27. März 2025, 23:34 Uhr von Elliott810
Brilliant puzzle! Thank you:)

Schwierigkeit:5
Bewertung:96 %
Gelöst:111 mal
Beobachtet:6 mal
ID:000MF6

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Lösungscode:

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