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12:24 AM
CCCC: Fissure in carboniferous rock yields red dye (9)
2 hours later…
2:44 AM
@GarethMcCaughan I have the feeling this may be CO(CHINE)AL, but I'm not confident about "chine" as "fissure" yet
3:18 AM
@oAlt yep, that seems to be it
oh right! I didn't connect "ravine" with "fissure" for some reason...
even saw it in merriam webster as well
3 hours later…
6:30 AM
heh, my c4 stockpile is close to being depleted
2 hours later…
8:39 AM
Q: n(n+1) as a multiple of 100

Rand al'ThorHere's a puzzle I came up with while walking today: For how many natural numbers $n$ is the number $n(n+1)$ a multiple of $100$? This is true for infinitely many $n$, so "how many" means something like "one in every hundred $n$", an answer in that sort of form. There are some brute-forcey ...

1 hour later…
9:51 AM
10:15 AM
Q: Maximum sum path in a mtrix

Jason ToddGiven a square matrix of size N X N (1 <= N <= 1000) containing positive and negative integers with absolute value not larger than 1000, we need to compute the greatest sum achievable by walking a path, starting at any cell of the matrix and always moving downwards or rightwards. Additionally we ...

10:37 AM
@oAlt Yup!
11:28 AM
CCCC: Federalist is scanning primarily Canadian legislature's first policy (6)
11:41 AM
@oAlt F_ i_ s_ Ca l_ = policy? (But it's not = policy that I know of.)
@jafe correct! (though, what do you mean by that statement?)
ah nvm
Q: Find the next country and the parameters

John BrookfieldsI created this puzzle. Denmark = [1 or 4, 11880, 1, 15, 4.433687003, 4 or 5] India = [11803, 381024, -1, 23, 0.3706062241, 5] New Zealand = [8916100448256 or 302875106592253, 43680, -1, 40, 0.2362925527, 1] Norway = [1 or 4, 13832, 1, 29, 5.609984399,5] Zimbabwe = [4, 15561, -1, 49, 0.574342...

@oAlt Did you mean to @ddress me?
? nope @msh210 , just jafe
Oh, okay, just making sure.
11:54 AM
(wait, did nvm mean something different, by any chance? I was using it as "never mind")
12:32 PM
@oAlt That's all it means that I know of.
@oAlt Then can I have a ruling on my attempt, please?
12:57 PM
I thought jafe answered that one... whoops,,
@msh210 you are correct!
sorry jafe I tagged you by mistake
Q: Move just 2 matchsticks to make three equally sized triangles

Man of MinecraftThere are 9 equally sized matchsticks, move 2 to make 3 equal triangles

1:17 PM
CCCC: Maybe Gareth McCaughan's C4 initially is gotten by Rand al'Thor (9)
(which is also a rhyming couplet, completely unintentionally)
1:33 PM
what a cute surface
CCCC is Cryptic Clue Chat Chains! Latest clue is ⤴/⤵ there! Join the fun! See Deusovi's Cryptic Clue Guide and GPR's Archive & Statistics of past clues.
(just noticed that the C4-explainer had fallen off the starboard again)
2:18 PM
@GarethMcCaughan "…never let it fade away…"
@GarethMcCaughan it doesn't seem to have pasted properly though
you're missing )** of past clues.
2:36 PM
I'm gonna be offline for forty-eight hours, so am again posting a hash of my intended solution to the C4, found by using emn178.github.io/online-tools/sha256.html , so people can check theirs (preferably after posting it here) and my absence doesn't hinder progress. It's 3870fc2eed1ae359313e012144f78d4c5e81327c731ec3e820da14998e7e9f2d
3:10 PM
That's the hash of the capitalized answer, I should note.
3:46 PM
Hi everybody
Does anyone else feel the puzzles in SE as "too hard"?
There are puzzles are varying difficulties. A lot of them are quite difficult but a lot of them aren't.
I think the puzzles should be categorised
@Mithical Thank you
@Sphinx This one i could do with 3 matchstic movement
but 2?
It's going to be... very difficult to categorize by difficulty. Aside from the fact that it's very difficult for the creator to know how hard something is going to be, there's also the problem of a puzzle that's extremely difficult for one person could be a piece of cake for someone else.
Does the original posters publish the answer if they know?
After a certain period IMO intended answers should be published
depends on the poster... there are questions from years ago that are still unanswered
4:00 PM
4:18 PM
@AlwaysConfused Yeah, there's no feasible way to assign a 'difficulty rating' to each puzzle -- even if we could get past the technical issues, difficulty is completely subjective.
(I do think people should keep adding hints if it's unsolved, or give the answer if they can't give any more hints. But some people don't do that.)
4:30 PM
I have 3 unsolved puzzles, not sure what to do about it
Not sure about the riddle, but for the other two it seems like your intended answer was 'bypassed' - it might be worth just explaining how it was intended to be gotten.
@Deusovi thank you
@Deusovi You were on the right lines with the chemical number one, want to have another go?
Oh, I knew there was more to it than my answer - I posted it to make a point that the question was underspecified. (I figured they were atomic masses or something along those lines, but didn't bother to check.)
Omega Krypton's followup answer seems perfectly fine to me.
There's a tiny bit I'm missing:
> You're close but not quite, what links these elements together?
4:42 PM
Yes, I know. I'm not really interested in playing "guess what I'm thinking" here -- you've given six examples and zero counterexamples, so there are a ton of possible options.
I'll add some counter examples
Sorry, that came off as harsher than intended, but still - the question is underspecified, and I'm currently not really interested in figuring it out.
Q: Around the Bend

bobbleI saw this crossword type in a book and decided to make one. It's called an around-the-bend because each word goes... around the bend. I have both the board and the clues as a text file, but I have no idea how to put that in the question. Rules Each word goes from left to right on its numbered...

Posted an answer to the riddle, I intended the Where am I now? puzzle to be a series but I don't think I'll make any more as it wasn't well supported and because of this have no motivation to do so
1 hour later…
6:08 PM
Q: please help I'm stuck on this question

maydayA ______________________is a group of stars that has been given a name to help us find certain stars or recognize them. ________________ is the “hunter”.

Q: Intersecting shapes on a flat surface

Alex ChengIf I draw two circles and two triangles on a flat surface, how many bounded regions are created to the maximum?

6:38 PM
I see LOCAL and can't help but think about low calorie (LO CAL) foods for some reason
6:57 PM
Q: What is a 21 + 3113 Word™?

Thomas MarkovThis is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles. If a word adheres to a certain rule I call it a 21 + 3113 Word™. Text-only version in CSV form: "MINUTELY","BACON" "INFLECTS","TOUGH" "ZESTFUL","TASTEFUL" "UTENSIL",...

7:12 PM
Also, how might one clue (DELIVERY - E)* = DEVILRY?
that's an indirect anagram, so one might not.
8:11 PM
Oh, that's unfortunate
2 hours later…
9:54 PM
@Mithical Good catch. Will fix.
Fixed now.
10:17 PM
Q: EDUCATION becomes a pandigital number

Bernardo Recamán SantosEach of the letters of the word EDUCATION is assigned a different integer value between 1 and 9, for a total value for the word of 45. With the same value for each of the letters, the total values of the letters in each of the six words below are all different prime numbers. Moreover, the six wor...

Q: Matrix Pattern matching Puzzle

Asif ShirazThis puzzle is part of the openly available questions from a book. I'm trying to solve it, but cannot find any solution to it. The book inside preview says the answer is top right one (two solid circles diagonal and one empty circle bottom left). Answer is here (patterns at play answers section q...

10:41 PM
Q: Cryptic Family Reunion #9

Jeremy DoverThe answer to this puzzle is a list of ten thematically related words or proper names or phrases. Each of these is clued cryptically, and the theme is to be determined. Since the definition part of a cryptic clue would give away the theme, these cryptic clues use a family member (e.g., mom, siste...


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