The Sphinx's Lair

12:05 AM

Q: Prime magic star

Can you replace the letters with 10 consecutive primes such that the sum of numbers on each line is equal? Good luck!

4 hours later…

Q: Number Sequence Puzzles : Find missing number in triangle

4:12 AM

-1

Solve this question plz send me answer

mathematics

micsthepick

If we made an actual crossword with the CCCCs from here, how difficult would it be compared to your average cryptic?

@EricTressler has there been an update to Tametsi relating to DPI/scaling?

things are suddenly tiny and blurry at the same resolution

Deusovi

probably harder than the average (though crossing letters would help)

micsthepick

hmm, seems like windows just got itself in a twist. I went to check the scaling settings, and it instantly jumped to a higher scale, so now I reduced the scale back to 100%, and restarted, and it seems fine

@Deusovi technically for some CCCCs they have helped, because people sometimes give that information as hints

1 hour later…

Q: 4x7 rectangle divided into 7 different rectangles

5:54 AM

Can you divide a 4x7 rectangle into 7 rectangles all of different area? Can you find multiple solutions? Good luck! P.S. @Deusovi wanted me to make puzzles that have an "aha moment", so here is my attempt at that.

mathematics geometry

Q: 7x13 rectangle divided into 13 different rectangles

6:15 AM

Can you divide a 7x13 rectangle into 13 rectangles all of different area? Can you find multiple solutions? Note that rotations and mirrors don't count as separate solutions. Here is a similar puzzle for a 4x7: 4x7 rectangle divided into 7 different rectangles Good luck!

mathematics geometry

Q: 10x10 divided into the most number of rectangles of different area

6:35 AM

How can a 10x10 be divided into rectangles such that there are as many as possible and they all have different area? Can you find multiple solutions that are not mirror/rotation of each other? Good luck!

mathematics geometry

2 hours later…

jafe

8:48 AM

i wouldn't oppose a cccc hint

looks like another &lit...

John Dvorak

Should we have a persistent feed that pops up when there's a new CC? Perhaps due to all the ongoing drama, I missed again that there's a new one.

Q: Find the missing link of this unique chain

A link is missing from the following line, can you find it? The answer is one word. bass gland venom guitar

riddle word lateral-thinking

Adam

@Sphinx This user has updated their about section in response to the reaction to their puzzles

Q: It's right here. It's very very far

9:39 AM

IT IS DIVINE IT’S A KILLER IT’S A GIFT IT’S A MEASURE IT’S A SOLID IT’S A LIQUID IT’S QUICK IT’S A CAR IT’S HERE IN A GLASS HOUSE IT’S VERY VERY FAR What one word is it?

word knowledge

Q: Family Relations

Now I am not sure if these kind of questions are allowed on this site but I found it interesting so here i go A points to B and says " His grandfather adopted my grandfather " . Now what is relation between A and B. There can be more then 1 answer. Actually it is real situation I got a com...

family

micsthepick

10:06 AM

@OmegaKrypton I hadn't considered that as a possibility, but now that I do it seems likely to me too

10:47 AM

@jafe My clues end in "!" if, and only if, they're &lits.

@msh210 hah!

I thought that might've been clear from stuff I've said in the past, which is why I thought this one would go quickly.

18 hours ago, by msh210

CCCC sorta-hint: unfeasible vs. infeasible is not relevant. I used what I thought was the more common word. Sorry for any resulting confusion.

Oct 10 at 8:43, by msh210

A sort-of hint for the CCCC is that the definition part is not an exact part-of-speech match for the answer. But you probably should've realized that anyway, since the definition part doesn't have a clear part of speech altogether.

Want more?

I can do a letter, too, if desired.

yeah a letter please

@OmegaKrypton L is the fifth.

Q: How to flip top row center pieces on a 4x4 rubiks cube

Im trying to solve a 4x4 by first reducing it to 3x3 and im stuck in the end. Ive completed all sides, matched all corners but two pieces remain and i cant figure out how to flip them withouth disturbing anything else. By the way even if i break it down to the point it resembles a 3x3 and start s...

rubiks-cube

11:01 AM

@msh210 >SENIL+_E

nice clue... been thinking of this since your posting ;)

11:40 AM

@OmegaKrypton Yes!

@OmegaKrypton thanks

jafe

i like it

thanks

Q: How to fill up the numbers in a set of empty discs drawing a pentagon?

12:01 PM

The following pentagon is composed by $10$ discs. Each disc must be filled with one number. The allowed numbers to be used are the first $10$ even positive numbers. The sum of the numbers to be placed in each side of the pentagon must be the same and the maximum posible. Find the sum of the numbe...

calculation-puzzle

M Oehm

I don't know what to say about that clue. Or maybe I've just forgotten what I wanted to say.

12:58 PM

LOL @MOehm

Eric Tressler

1:13 PM

@micsthepick no; I had a request to make the UI scale with resolution, but it's actually more work than i think i want to take on

Q: 8x8 grid with no unpainted pentominoes

What is the smallest number of cells you need to paint in an 8x8 grid, such that it contains no unpainted pentominoes? Note that a pentomino is a set of 5 adjacent cells (horizontally or vertically). Good luck!

mathematics combinatorics

Q: 10x10 grid with no unpainted hexominoes

1:43 PM

What is the smallest number of cells you need to paint in an 10x10 grid, such that it contains no unpainted hexominoes? Note that a hexomino is a set of 6 adjacent cells (horizontally or vertically). Here is a similar puzzle for pentominoes on an 8x8: 8x8 grid with no unpainted pentominoes Good...

mathematics combinatorics

1 hour later…