Silent Sweeper
(Eingestellt am 22. Oktober 2025, 14:54 Uhr von gdc)
Inspired by SONAR. This puzzle was originally set for sudoku adventure, but got rejected because the difficlty is too high. Accoing to testers (thanks everyone), it should be a 1-1.5 star. Hope you enjoy!
Mein Sweeper: A digit in a circle counts the number of the (up to 8) surrounding digits that differ by 3 or more from it. For example: If r2c3 is 2, then exactly two of the eight cells surrounding it contain a 5 or 6.
Lösungscode: Row 3 left to right (6 digits)
Kommentare
am 10. November 2025, 04:17 Uhr von Aronana
Very cute. Hope not to step on any bombs. I have a family..
am 5. November 2025, 08:29 Uhr von JVA
Very nice puzzle, perhaps a high 1*, but not 2
am 23. Oktober 2025, 19:38 Uhr von googuee
Enjoyed solving this puzzle!
am 23. Oktober 2025, 18:32 Uhr von Winterbeard
I think it’s a solid 1 star, but for those with a bit of experience in variant sudokus.
It could be nice to see a bit of nuance in the star rating. Eg I’m a solid 1 star player, who has completed one or two 2 star, but tend to stay away from them. But if I could see it was a 2.1 star, I’d be tempted and maybe push my level a bit.
am 23. Oktober 2025, 14:14 Uhr von AshBrown
Nice puzzle. 2 stars for me Clive
am 23. Oktober 2025, 14:13 Uhr von Winterbeard
I think it’s a solid 1 star, but for those with a bit of experience in variant sudokus.
It could be nice to see a bit of nuance in the star rating. Eg I’m a solid 1 star player, who has completed one or two 2 star, but tend to stay away from them. But if I could see it was a 2.1 star, rather than a 2.8star, I’d be tempted and maybe push my level a bit.
am 23. Oktober 2025, 09:57 Uhr von jorningekr
Very nice. Clear 2 star 6x6 for me
am 23. Oktober 2025, 09:46 Uhr von abw
Great puzzle! I started by writing out all the possibilities for mined numbers, e.g. 1 must be surrounded by one of 4, 5 or 6. 2 must have two of 5 or 6 and so on. That was a great help in understanding the constraint. After that it was a series of logical steps to reach the solution. Not too hard, but not trivial either. Very enjoyable for a relatively inexperienced solver like myself.
am 22. Oktober 2025, 18:47 Uhr von Snookerfan
Very nice! Understanding the implications of the ruleset is harder than 1 star in my opinion, but after that it is a quick and smooth solve. 2 stars for me. Thank you
am 22. Oktober 2025, 18:46 Uhr von Zibl
Lovely puzzle! Thank you!
am 22. Oktober 2025, 17:59 Uhr von damo_89
@MattYDdraig as there is nothing new under the sun, andrewsarchus earlier set a puzzle with this ruleset: https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000IT0
am 22. Oktober 2025, 17:01 Uhr von SamuPiano
Great puzzle, thank you!
am 22. Oktober 2025, 16:57 Uhr von gdc
@MattYDdraig: Thanks! The puzzle I linked at the very top (P60) is a 9x9 with the same rules by @damo_89.
am 22. Oktober 2025, 16:46 Uhr von sujoyku
Nice one! Thank you, gdc!
am 22. Oktober 2025, 16:26 Uhr von ChinStrap
Elegant, smooth, and still surprising at the same time.
am 22. Oktober 2025, 16:18 Uhr von MattYDdraig
Very elegant simple snack with excellent use of the power of the constraint. Would be interesting to see how it scales.
am 22. Oktober 2025, 15:51 Uhr von damo_89
I love the visuals! Really lovely and smooth.
am 22. Oktober 2025, 15:35 Uhr von Nebuzaradan
Great introductory puzzle to an unfamiliar constraint! Extremely smooth after discovering the constraint's implications. No need for massive bifurcation or deep study.
am 22. Oktober 2025, 15:29 Uhr von VitP
shouldn't take too long to figure out that the constraint is very weak. thus you have 2 choices:
1) massive bifurcation
2) deep study to try to find patterns, which may or may not exist.
3) probably both
so, definitely NOT level 1
