peek at solution solve puzzle
quality: difficulty:
solvability: line logic only
Puzzle Description Suppressed:Click below to view spoilers
#1: Brian Bellis (mootpoint) on Mar 16, 2019
One of my favorite kid joke punch lines. "Look at that S car go."#2: Joe (infrapinklizzard) on Oct 27, 2019 [SPOILER]
Comment Suppressed:Click below to view spoilers#3: Web Paint-By-Number Robot (webpbn) on Oct 27, 2019
Found to have a unique solution by infrapinklizzard.#4: Web Paint-By-Number Robot (webpbn) on Oct 27, 2019
Found to be solvable by line and color logic alone by infrapinklizzard.#5: Jota (jota) on Sep 17, 2020
Funny Brain!#6: CB Paul (cbpaul) on Apr 8, 2021 [SPOILER]
Comment Suppressed:Click below to view spoilers#7: Joe (infrapinklizzard) on Apr 8, 2021
"Found to be solvable by line and color logic alone" is the lowest level of logical solving. I merely choose that from a list - the WebPBN Robot is the one who makes the comment.#8: Yonah Kondor (yokon965) on Apr 16, 2021 [SPOILER]
The site is smart enough to know that the puzzle has only one color (see the solvability at the top of this page: it says "line logic only"), but the robot's responses were probably simplified for ... well, simplicity.
Comment Suppressed:Click below to view spoilers#9: Joe (infrapinklizzard) on Apr 18, 2021
The solvability is usually set when the puzzle is created. There is a solving program that runs on the server that checks and is nearly 100% at catching all line-logic-only puzzles. It is also pretty good at figuring out moderate-lookahead.#10: Karen Scholl (karenttrouble) on Jul 1, 2021
It is also extremely good at figuring out whether the puzzle has a unique solution.
If the checker program cannot figure out one of these things, it leaves it to be set later. (Solvers can vote on these, but only a few people have the ability to *set* these values, because vandalism)
When one of the "moderators" sets the value, then the WebPBN forum robot then makes a comment saying who set the value and to what it was set. (If the puzzle is one of the horrible ones that the checker can't figure out the uniqueness of, then anyone who finds the first alternate solution will trigger the robot's response)
The reason that you find some puzzles with neither set is because we had a server mishap several years ago that wiped out the database - and backups for a couple years. So those have to be redone by hand
Indeed, thinking back to when I made these, I'd make sure the system said the puzzle was solvable with line logic only, then I'd do a test run to make sure it wasn't extremely boring before publishing it.
Show: Spoilers
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