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1:44 AM
@GarethMcCaughan ROMANTIC, from RON (Eglash's Race, Sex, and NERDS)+AC (a current)+MTI (University in Cairo). Genre of literature is the def
 
2:37 AM
On second thought, that's quite the stretch
 
2:51 AM
i think it's SF (sci-fi, a genre of literature) plus I (current) inside MIT'S (technical university's) for MISFITS (nerds)
 
that is less stretchy
 
3:06 AM
That's practically rigid
 
 
2 hours later…
5:26 AM
0
Q: Show that every finite directed acyclic graph has at least one source vertex

Hemant AgarwalEasy puzzle courtesy of a paper I'm reading rn: Show that every finite directed acyclic graph has at least one source vertex. That is, a vertex such that all the directed edges incident to it are directed away from said vertex. Source : The above is the exact text from a post on the facebook grou...

 
 
5 hours later…
10:05 AM
@AncientSwordRage nope!
@Jafe yup!
 
@Jafe The genre in question is indeed current among technical university's nerds.
And current (I) is another genre (well, topic) of literature among said nerds.
 
10:29 AM
The first of those observations is one reason why I like the clue. The second is not. (And, actually, maybe it would have been better if the genre hadn't really been one that "fits" so well, on the general principle that you want the surface reading and the actual wordplay to be as far away from one another as possible.)
 
CCCC: Lose dairy-based beverage competition? (5,3)
 
@Jafe shake off ddef :-)
 
that was a very swift solve
 
10:45 AM
I spotted the "off" part pretty much as soon as I saw the clue, and then spent several minutes wondering what the drink could be. I even checked a milk-based drink list online (though "shake" didn't appear).
 
(note: while this was indeed an admirably swift solve, that wasn't the only reason for my comment)
 
11:06 AM
that's correct!
 
@Stiv ahh, thanks
 
 
1 hour later…
12:24 PM
CCCC: Game player is keeping track (4)
 
RISK
Def: Game, playeR IS Keeping... I'm not familiar with track being a containment indicator but it must be right?
 
12:57 PM
@AncientSwordRage yep! I was thinking of a track meaning a segment of a longer thing, like on a music CD.
 
AH!
gotcha
CCCC: State 31 or 99 of heat ( 7 )
 
CCCC: CALORIC - CALifornia OR IC
 
1:17 PM
@ChrisCudmore correct!
 
1:58 PM
CCCC: Position in the penalty box perhaps. (6)
 
Does Position clue PEL? I was thinking of P (ARC) EL
 
2:35 PM
I don't understand the rest of the logic there either
 
2:50 PM
Nor me.
 
@ChrisCudmore Is this OFFICE (as in "OFF ICE" which is where the penalty box would be in ice hockey)
 
That's it.
 
@ChrisCudmore That's a good one
 
Thank you.
 
CCCC: Rob your secret (8)
 
3:29 PM
@hexomino Answer to your CCCC is STEAL + THY = STEALTHY.
 
@GarethMcCaughan Yep, that's it!
 
3:43 PM
0
Q: Why can R2c3 not be a 4?

jeykTake the following Killer Sudoku I have been struggling with for the last few hours. "Penciled" numbers are my notes about which numbers are possible in the cells. I cannot seem to find the next step. The App I am using says that R2c3 can only be a 5. However, I fail to see the reason. Anything ...

 
@Sphinx it's not that it can't be a 4, it's that it must be a 5. But I'll wait for OP clarifications & sourcing information before I post an answer
 
Sid
I think OP meant R1C3 instead of R2C3
 
I assume so as well, but I'm feeling nitpicking about sourcing right now
@mods (I would @Rubio but they're not pingable) I think I will write up a draft of an FAQ/summary for our attribution policy at some point Soon (tm).
Unless anyone else wants to, but with the lovely level/lack of meta participation on my custom close reason I doubt so...
... and someone FGITW'ed an answer before the clarifications. Of course.
 
What's FGITW?
 
Fastest Gun In The West
1465
Q: Fastest Gun in the West Problem

Omer van KloetenI feel like there's a problem with Stack Overflow, as the number of people prowling it increases. Each question's answers are sorted by descending score and then by descending time of posting. This means that if a person sits down and answers a question in a long, thorough way, going through eve...

 
4:00 PM
oopsie, sorry bobble.
 
's kay, the answer's been given and the clarifications were provided. Everyone goes home happy.
 
didn't see this discussion in the chat, and the "ooh finally a question that I can answer" temptation was too great.
 
It's more of a worry when, for example, someone posts an answer to a question that looks like it could be an attempt to cheat on something. Then we'd prefer for answerers to stay out until enough sourcing information is provided to be sure that we're not helping people cheat
@infinigon I know this painfully well - a few of my early answers I have deleted, realizing later that I sacrificed quality for "me want some rep!". At least your answer is a good one here.
If you're interested in Sudokus, may I indoctrinate you into the cult of introduce you to grid-deductions in general? There are a bunch of genres, and I would love for there to be more setters around here.
(setters = "people who set/make grid deduction puzzles")
 
I do like my grid deduction puzzles!
They're a huge time sink though. I've more recently been trying to channel my time into learning to solve cryptics instead :)
 
Which are somehow less of a time sink? I think not! ;p
 
4:08 PM
dropped into the chat because I saw the CCCC series. They're really cool, but I can't solve them (quick enough) yet :P
 
Oh, we're not always so fast. There have been clues which were up for days on end before.
 
well, I gotta pick a sink to pour my time down
 
Feel free to check in every once in a while to see if there's an active clue. Or more often if you want to be privy to all the randomness that happens here.
 
I tried my hand at making my first cryptic clues last night. Hoping to make it a CCCC and seeing how others feel about it. But it might take a while before I crack someone else's.
 
If you want practice, just post your clues (not part of the chain) and this chatroom is happy to offer constructive criticism
That's how I learned cryptic clues, a while back - trial and error (with a distinct emphasis on error) until the rules finally clicked
Also, don't think we've been properly introduced. I'm bobble, a sentient crown and/or incoming first-year university student :)
I am also a bit much, a prolific linker, and a fast typist
 
4:17 PM
honoured to be graced with your presence.
being a student right now must be rough, I imagine.
classes all still remote?
 
My university's fall classes haven't started yet, but they're going to be primarily in-person.
 
I did the whole education thing and now I'm doing the whole work-from-home thing, and soon the work-from-office thing, but sneaking in a few puzzles whilst I'm still working from home.
whilst I still can, during the workday :)
 
They also have a vaccine mandate, testing/contact tracing protocols, and hopefully that'll be enough. Remote high school was a pain.
 
that is good to hear. exciting times for you!
 
I'm back in the office mostly. I can't stand work from home, especially when the kids are off school.
 
4:21 PM
One of my parents is work-from-home (but that was true before the pandemic, too) and the other is effectively hybrid because he keeps getting called in for Important Meetings (tm)
 
my colleagues are split between the opinion of work-from-home being difficult with kids, and work-from-office being sad because you can't spend time with the kids
 
Sid
All my friends have started Work-From-Home while I have to go join the office, in person. :(
 
My kids are 15, so they're not needing as much time with me as before.
 
I think the conclusion is, kids are just hard.
 
Actually, the pandemic came at exactly the right time. 14-15 is peek a**hole for boys. So we more or less avoided it.
With twins, the worst part is 2-4. When they can't be left alone for even a minute, and there's two of them going off in different directions.
 
Sid
4:26 PM
@ChrisCudmore Ha! I have twin nephews and they turned 2 on, I think April.
 
Don't let yourself be outnumbered.
 
@bobble good advice. I should stop umming and ahhing about then not being able to use it in CCCC
 
my very first clue is not PG, so let's go with the second one I made:
Turn words into actions, say (9)
 
whispers I would like a hint
 
I don't see an obvious def/wordplay split here.
 
4:38 PM
it's a double definition
 
So Turn isn't and anagram indicator.
an.
 
ah, I see what happened here.
no, turn is not an anagram indicator
 
I would more naturally see "turn" as a reversal indicator, but then
Jan 4 at 15:11, by msh210
@LukasRotter Leur's rule: For every word, there's at least one person who considers it an anagram indicator.
 
how do crossword setters (or any puzzle setters) gauge difficulty
 
IMPLEMENT fits one definition before the comma, but "say" doesn't fit.
 
4:44 PM
In generally, badly
 
in my mind I had convinced myself "this is obvious" and "someone's sure to have seen this before"
 
.. And it's only 8 characters. Never mind.
 
it is not implement
the split is at the comma though.
 
there is also this
48
Q: The many-eyes effect

xnorI want to alert puzzle writers to a potential cognitive bias I'll call the many-eyes effect. Many people try to solve your puzzle, but only those who succeed post. It's tempting to imagine the posters as typical solvers and forget the many invisible people who tried and got stuck. As a result, yo...

 
sometimes it's really obvious after the fact. You struggle for a while then it's "Duh! of course!"
 
4:46 PM
ah, yes, interesting bobble.
 
VERBALIZE ?
 
yes!
I only realised after you mentioned turn that the clue is actually misleading with its faux indicator words
 
I'm not sure on "Turn words into actions" = VERBALIZE - isn't "verbalizing" when you say something, not when you do something?
 
ah, that refers to the definition of verbalize as in to turn a word into a verb
 
oh, like verbing
 
4:53 PM
yeah, that's what I was going for.
 
okay :) it's a fair clue, and a pretty nice one too, in my book
 
why thank you kindly
though most of the credit has to go to the word verbalize for being such an oddball
 
That's the point of good cryptic clues - exploit the weirdness of the English language
 
I feel like choice of word does most of the work in making a DD
for the setter it's like "just add water"
 
Completely unrelated, I saw this on the sidebar and it annoyed me:
terrible, terrible titles
 
4:56 PM
hah. let me guess
stackexchange won't let you create a question if the title has been used before
 
I usually try to stick the sequence itself into the title to make them at least semi-useful
@infinigon yup! There are workarounds, of course, but the easiest is to change some of the small words around
 
hence all of the small variations
amazing.
 
I hate sequence puzzles.
This one is apparently from an MCAT test review. What aptitude does it even test for? puzzling.stackexchange.com/questions/111316/…
 
I downvote the ones that seem to come from IQ-adjacent tests and the ones which appear to be guess-what-I'm-thinking puzzles, and upvote the rare interesting one
 
@ChrisCudmore When I started my draft process in the military, there were a couple tests where you had to figure out "what shape is next?" within a time limit. The result was basically how they computed your "intelligence score".
(Which itself was a major part of your overall score, which affected what positions you could get into.)
 
5:04 PM
Let me guess - Triangle, Square, Pentagon ...
 
More like this:
 
title: "Progressive matrix puzzle with crosshatched diagonal lines and a central cross"
it's reflexive at this point
I edit so many of those
 
You have 30 minutes to get through 30 of them, so it'd be a bit hard to ask for help on PSE :D
 
1.
given that each row and each column has one each of | - and +, with one of each background.
 
Yep. That was my first instinct, as well.
 
5:10 PM
they've elected for unusual placeholder shape, instead of a question mark or something like that
 
There's also diagonalization arguments that fit that answer as well.
 
it's like "no no, you have to put your piece in this way round, never mind that all these shapes are rotationally symmetric"
 
I'm pretty sure on the tests themselves it was a question mark, but... *shrugs*
 
14
A: Add title uniqueness to the heuristics for detecting low-quality questions

Marc GravellAs noted, the data shows that there's a good chance of duplication of titles, despite the existing UI that offers suggestions: Basically, "we agree", so there will* be a strong check on adding new duplicates, including a link to (one of the) pre-existing questions (so you can go and see if tha...

there's the implementation of the title-uniqueness requirement
reluctantly drags self away to do Useful Things
 
 
1 hour later…
6:29 PM
@bobble c.f. "What's the title of this movie/manga/manwha/book?" On SFF
 
@AncientSwordRage I try to help every so often there :)
 
@bobble it's appreciated
 
 
4 hours later…
10:04 PM
CCCC: Honour without consent, perhaps (5)
 
 
1 hour later…
11:12 PM
0
Q: A Glutton and a Split Check

FeryllN, T, A, B are arbitrary constants in this problem. I have only definitively solved the N=1 subproblem, so, if the general problem cannot be solved, I will be satisfied to mark as accepted a solution to this subproblem. I may put a bounty out for the general solution before that. Problem Statemen...

 
11:36 PM
@GarethMcCaughan M(ay)BE
 
@msh210 Yep! Well done.
 
Thanks. I haven't one prepared, so the next will have to wait a few hours, I'm afraid.
 

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