Unanswered Questions
377 questions with no upvoted or accepted answers
32
votes
3
answers
2k
views
The First Gate: Why So Tense?
Greetings fellow puzzlers and puzzled alike! I’ve concocted a little puzzle for you all... Well little may be an understatement, but I'll come back to that.
Before starting, you should know that the ...
CommunityBot
- 1
27
votes
0
answers
2k
views
Is there a move-efficient way to rotate the center pieces on the Octo-Star?
I'm looking for a more efficient algorithm to rotate the center column of the Octo-Star puzzle 45 degrees.
The situation below occurs when four properly-oriented edges are next to each other, ...
- 53
25
votes
0
answers
2k
views
Decrypting the Key: "Phage is Spreading.."
I've been trying to solve this puzzle called "Phage is Spreading.."
...
- 10.1k
22
votes
0
answers
2k
views
REALLY important days in history
@Z. Dailey asks a mathematical puzzle Important days in history... and to come! with a series of dates in years 1973, 1978, 1983, 1992, 2005.
My puzzle asks the question: What is the previous date in ...
- 187
21
votes
0
answers
2k
views
Noita Eye Glyphs
A puzzle found hidden between the background layers of the computer game Noita. The puzzle has not been solved since it was added to the game in October of 2020.
It is made of thousands of eye images, ...
- 3,697
19
votes
0
answers
929
views
Alternate, complex potions puzzle from HP fanfic
A long narrow room. The entrance is blocked by purple flame, the path onward blocked by black flame. On a table, the only thing in the room, are two dozen potions in opaque bottles. Half green glass, ...
- 191
16
votes
0
answers
2k
views
The Moldy Square Grid
This puzzle is part of the Monthly Topic Challenge #14: Think inside the (very small) box!.
What is in the middle space?
Hint:
Hint 2:
Hint 3:
- 24.5k
16
votes
0
answers
2k
views
What does this mathematical operator do?
The solution to this puzzle is one I came up with when working on this puzzle: What is the answer of this math puzzle?
For two natural numbers a,b, can you figure ...
- 552
14
votes
0
answers
629
views
Qubes: Oh, For the Love Of
TL;DR: This is a mixture between a tribute/spin-off puzzle and an attempt at a new puzzle type, greatly inspired by the notorious arcade game, Q*bert, published originally by Gottlieb Amusement Games. ...
- 792
14
votes
0
answers
1k
views
13
votes
0
answers
342
views
Largest smallest unattainable score in Scrabble
Consider the following Scrabble board:
We can play NO for 1 point, AI for 2 points, NOSE for 3 points etc as indicated on the right. All this obviously depends on having the correct letters on your ...
- 7,444
13
votes
0
answers
2k
views
Crack the pigeon code
Can you crack this message? It was discovered in a chimney in 2012 attached to a carrier pigeon and was most likely sent during the D-day invasions. The GCHQ was not able to crack it, even after ...
- 10.1k
13
votes
0
answers
513
views
Determining the meaning of a challenge coin
I saw this rather cool looking challenge coin the other day, and I was wondering what the associated binary on the back of it means, as it isn't standard ASCII. I'd appreciate it if you all have any ...
- 35.6k
13
votes
0
answers
674
views
Grandma's keynote
Found this note which is addressed
To my grandma, in her chest
Since she's passed now, here's my quest..
What tickled her interest?
And who invited her as guest?
- 2,555
12
votes
0
answers
695
views
Dissecting a figure into 2, 3, 4, and 5 parts but not 6
This figure is divided in 2, 3 and 4 equal parts of same size and shape, but it is not possible to do it in 5 equal parts of same size and shape.
Is it possible to find a figure that can be divided ...
