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Comments and Results for 'Slitherlink 1915'

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StateTypeTitleSizePlayedAvg timeRating (#users)YoursYour bestPublishedExpires
UnplayedSlitherlinkSlitherlink 191512x848213:08Hard (113)Was free until 9th Mar 202223rd FebExpired
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Slowest 10% not shown
0:00
26:48

Solution time without 'show wrong'
Slowest 10% not shown
0:00
22:50

Unaided first solution time
Slowest 10% not shown
0:00
21:57
Completed by172 users
Best time without any aid2:25 by Anonymous
Best time with show wrong
or multiple sessions
1:10 by kazior43
Average solve time with no or minor aid13:24
Average solve time with no aid13:40
Average difficulty rating - all players4.6/10.0
Average difficulty rating - no aid5.3/10.0
Average difficulty rating - minor aid6.6/10.0
Average difficulty rating - major aid5.5/10.0
Average difficulty rating - show wrong or
multiple sessions
4.2/10.0
6 comments (Add new comment)
Posted 25th Feb 2022 at 07:47
Last edited by gareth 26th Feb 2022 at 00:34
JoergWausW Daily subscriber Completion time: 22:29 Used 'show wrong moves'
I don't see the next logical step.
Of course: I could guess and see what happens - but so far I only tried choices with a contradiction after at least 10 more steps.

Screenshot

And for the 2 in the middle of the second row from the bottom, I already used a rather obscure logic ("if the line didn't go along the 0, the it might not be a unique solution")

Posted 26th Feb 2022 at 00:36
Last edited by gareth 26th Feb 2022 at 00:39
gareth Administrator Daily subscriber Rated puzzle: Hard Completion time: 4:59 Used 'show invalid'
I fixed your link, which had an extra '/' on the end.

Other than the odd trivial marking of a definitely empty bar which hasn't helped, I don't immediately see how you can make progress either. I think that experimentation is likely to be the best way to solve this particular puzzle, once you get stuck. (It was made about 15 years ago and has sat in a database ever since, so I can't go back and see what the parameters or intended logic was)

Posted 26th Feb 2022 at 09:00
JoergWausW Daily subscriber Completion time: 22:29 Used 'show wrong moves'
Ok, then it's not us...
I had similar problems a few more times in the last weeks with slitherlinks. So I decided to ask this time.

Maybe the logic was just about giving just enough hints to make the solution unique?

Playing on a computer makes experimenting easy. I imagine that this puzzle would not be suitable for print and pencil - too much rubber involved.

Oh, the / probably came from using your markup example - ...wherever.com /> - there's a /, too.
But I thought I tested the link. Maybe I just pasted it...

Posted 26th Feb 2022 at 09:27
JoergWausW Daily subscriber Completion time: 22:29 Used 'show wrong moves'
I just found another possible step: row 3, the middle of the three 2: the bottom is black. Then it works.
Posted 27th Feb 2022 at 01:43
gareth Administrator Daily subscriber Rated puzzle: Hard Completion time: 4:59 Used 'show invalid'
One day I plan to rewrite my slitherlink code based on everything I've learned about how to solve them in 15 years :) but the existing puzzles are essentially fine so it's never been a priority.
Posted 12th Sep 2022 at 16:16
winterer Daily subscriber Rated puzzle: Moderate Best completion time: 2:19 Time on first attempt: 5:54
Joerg,

I was re-solving some older puzzles to keep in shape and came across your old question.
The continuation is straightforward.
On the right edge, there is a vertical 1/2/1 combination.
In such a case, the right side of the 2 must be black, as otherwise one of the two 1s would have two black edges.
(this applies in general to 1/2/1 combinations at the grid edges: the outer edge of the 2 must be black)
This rest should follow easily.

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Key

  • A yellow/light blue highlight in the time distribution charts highlights your time, where relevant.
  • Rating scores out of 10.0 show the average difficulty rating chosen by users, where 1.0 is "Easy" and 10.0 is "Hard".
  • If a puzzle is opened more than once, including by loading from a saved position, then this is potentially a significant aid so it is listed as being completed with 'multiple sessions' for the purpose of the best time/average rating displays above.
  • Minor aid is defined as no more than one use of 'Check solution' when incomplete and/or no more than one use of 'Check solution' when wrong; and/or using highlighting aids (show repeated digits, show broken inequalities and show valid/invalid placements [slitherlink] only). Major aid is any and all other use of the solving aids except for 'show wrong'.

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