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1:22 AM
Q: Functional Equation: Squeeze it

Culver KwanDetermine whether there exists a function $f:\mathbb{R}\rightarrow\mathbb{R}$ such that $$f\big(x^3+x\big)\le x\le\big(f(x)\big)^3+f(x)$$ for all $x\in\mathbb{R}$. Source: Math Excalibur Volume 22 No. 4 Page 3 Problem 536 rephrased

1:46 AM
Q: There are 2,001 doors leading to 2,001 hallways. How quickly can you find the way out?

Tanner SwettOnce again, you have angered the Emperor, and she has imprisoned you in a special prison. “I do have a bit of good news for you,” the Emperor has told you. “You're only two doors away from freedom, and I've left all the doors unlocked for you!” Of course, she neglected to mention the details. S...

4 hours later…
5:53 AM
Q: Fairground Disappointment

Rand al'Thor This Welsh town's northern fair is, after all, very backward: firstly popcorn with lemon; secondly, bloody agility swings; finally, scary clown going away without starting. All agog, very chewy outer layers right now. Selling wares from wardrobes: two ewes, four fifties, inner pants. Outwardly...

6:09 AM
Q: Question about Puzzle Creation Etiquette

Jeremy DoverI have created a puzzle that includes multiple steps, that I'd like to post on the site. However, two of the steps use standard puzzles as part of making progress. Assuming I attribute the source, is it fair game for me to find an instance of these standard puzzles on the Internet, or use a p...

@jafe "My word" is the definition half, and signifies that it's a word you invented (for this C4). The rest is the wordplay. :-)
7:12 AM
@msh210 heheheh
CCCC hint: "My word!" may not be a very intuitive match for what it stands for. A more straightforward alternative would be "Greetings!"
7:57 AM
@jafe Is al'Thor (the fantasy character or maybe our own) a HIREDHAND perchance? HI + R(E D_ H)AND. AFAIK that's usually written with a space, but so many words are losing their spaces these days. (Though the clue would probably then have "e.g." or the like at the end. And "separately" would be extraneous.)
the wordplay would make sense if they were!
but that it's not the intended solution
@msh210 Sheepherder, not hired hand.
(The fantasy character, not me.)
oh well
CHARACTER could be the def, I suppose. Or if any of his various titles have 9 letters.
I looked up his names/titles online, as well as those of his adoptive parents, and none seem to have nine letters. CHARACTER or MODERATOR would seem to require an "e.g." or the like at the end, but I'm certainly willing to consider them as possible solutions anyway.
8:08 AM
I wonder if "by Rand al'Thor" could mean something I or the character created.
CALLANDOR (his sword) is nine letters, and might be found by his side.
"My word!" is a CALL. "heroin" is NOR< ("ron"). I don't see a reversal indicator. "a bit of DXM" is D. So "a bit of DXM and heroin separately ingested" could sort of maybe be NDOR if we find a reversal indicator and squint a bit.
Oh, maybe "separately" is "after being separated into its component characters" i.e. an anagram indicator. Then "a bit of DXM and heroin separately ingested" is easily NDOR.
But "Ecstasy" would then have to be A.
. . . which it doesn't seem to be.
> Oh, maybe "separately" is "after being separated into its component characters" i.e. an anagram indicator. Then "a bit of DXM and heroin separately ingested" is easily NDOR.
No, that would be an indirect anagram. Oops.
@Randal'Thor maybe "ingested by Rand al'Thor" could be a definition? Is there an adjective or collective noun referring to what (or whom) he eats/kills/subsumes/is possessed by? (In case you can't tell, I know nothing about this character. I don't even know if this "Wheel of Time" thing is a book or a game or a movie or what - though I'm sure that's easily Googlable.)
It's a series of books :-) Probably one of the longest fantasy epics, at 14 novels and over 4 million words.
And I can't think of anything specific that could be defined by "ingested by Rand al'Thor".
The One Power, specifically saidin, is the type of magic he uses, but that's channelling, not ingesting.
8:25 AM
And, more importantly, only six characters.
Maybe Thor is the definition.
But then the wordplay seems too long: something, something, something, and something else all ingested by RANDAL is at least 10 letters.
Ooh, maybe they're separately ingested by R and AL.
2 hours later…
11:00 AM
^ those types of clues are starting to be my favorite, singular words that can be broken up cryptically
altho I think there are limitations to it, and some people don't want it at all
11:14 AM
(well, "Rand al" ain't a single word but you get me)
11:29 AM
@Randal'Thor I've never read it, but I understand Dune is over 4 million novels. But I don't know whether it's a "fantasy epic".
(I exaggerate, of course.)
11:46 AM
I'd been thinking (1) that "Rand al'Thor" might mean ALTHOR*, and (2) that "My word!" might mean some notably Finnish word. But the only 9-letter Finnish greeting I can find is TERVEHDYS and while it does contain an E, an D, and an H, all I can get out of what remains is VESTRY* which seems not very useful.
Taking "Rand" to mean "R and" is a clever idea, though.
ah, wait
@GarethMcCaughan I thought it might be Finnish, but the hint seems to indicate otherwise.
it's gotta be HEYERDAHL somehow
HEY will be "my word" / "greetings"
there we go! so Thor is the def.
we have an E, and then a D and an H inserted seperately into "R and AL"
11:49 AM
That's pretty convoluted.
(And pretty, and convoluted.)
it's neat; I like it
(I'm not a big fan of "My word" cluing "hey" though. But the hint helped.)
anyway, as so often it'll be a little while before I have a replacement. (I don't have a clue bank, though I do have a bunch of failed past attempts and probably some of them are salvageable.)
hey = the speaker is protesting (or greeting). my word = the speaker is shocked, or aghast.
@GarethMcCaughan that is correct
and yeah the hey = my word connection is pretty weak, although both can be found in the dictionary as "expression of surprise"
fair enough then
11:52 AM
i wasn't thinking of "R and", though, just R = (south african) rand
@jafe ohhhhh
that's nicer
I thought using "Rand al" to clue "R and AL" was considered naughty in a cryptic clue?
I got some disapproval before for making clues where, for example, "insect" meant putting something inside SECT.
12:07 PM
@Randal'Thor some certainly consider it so. Note though that that's not what jafe did.
12:29 PM
Q: My Lovely Connect Wall

hexominoThe 16 words below may be partitioned into 4 groups of 4 connected words. Additionally, each of the four groups can be represented by a single group-word. Finally, the four group-words are connected by a single five-letter word. +--------------+--------------+--------------+--------------+ ...

2 hours later…
2:08 PM
Q: Creating the hardest 6x6 maze

Dmitry KamenetskyYou are given an empty 6x6 grid. You are allowed to paint some of its cells as walls (black), while the remaining cells stay empty (white). A robot is programmed to start in one corner of the grid and visit the other three corners^ in the least number of steps possible. At each step, the robot mo...

3 hours later…
5:25 PM
Q: Multiplicative sudoku (don’t use computers please)

user69609If I place all the numbers from 1 to 9 in a 3x3 grid and I add the products of each row and column, then what is the minimal and the maximal sum? For example, the sum is 450 on the picture below.

5:50 PM
Q: Table covering with tablecoths

Alex ChengIn front of me stands a table with the shape of an equilateral triangle with side lengths 1. I can cover the whole surface with five isometric circular tablecloths. What’s the minimum radius for a tablecloth? (The tablecloths can of course)

2 hours later…
8:06 PM
Q: Impossible matrices – endgame

ErinIf you can solve these, then you probably are one of the Avengers. I find these six random puzzles to be impossible. Any Tony Stark IQs out there (maybe @Deusovi :D)?

8:58 PM
Q: Geometry optimization

Alex Cheng Three equilateral triangles with side lengths 28 are placed in the position as shown in the picture above. All the contacts are perfect and a circle passes by exactly one vertex per triangle. What’s the minimal radius?

9:23 PM
Q: Simple game of dice - what is the optimal strategy?

non-user38741The game is pretty simple, whoever reaches 50 first wins, but there are a few important details: 2 players, one die. Players take turns. Rolled values are simply added up When you roll a 6, however, the sum of the current turn is discarded When you decide to stop your turn, the current turn's s...

9:49 PM
Q: Homeworlds: Mini Doomsday Machine

QuuxplusoneLoosely inspired by the Babson task, here's my first attempt at a Binary Homeworlds problem in the same vein as Simple, Monopoly, Inheritance or Insurance Fraud, and Blastdoor. Lee (0, g3b2) r1r3g1b1- Ray (1, r1r3) -y2g3b3 DS1 (y2) b2-r1r3 DS2 (g1) g1g2- DS3 (g2) y2- DS4 (b2) r2-g3 The stash...

2 hours later…
11:32 PM
Q: Three out of four ain't bad

msh210The set of sixteen words below can be partitioned. Each partition is of four words that have something in common. I invite you to figure out the partitions and commonalities. ACORN, ALI, BRADLEY, CLEAN, COUNTY, FIRE, HAM, HERSHEY, INNOCENT, IS, LEO, MAMET, MARTIN, RUN, URBAN, VERITE


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