Unanswered Questions
24 questions with no upvoted or accepted answers
8
votes
0
answers
201
views
Is it possible to create a knot that is locked only when the rope is stretched?
Is it possible to create a knot that is stable/locked when the rope is stretched?
When the tension is relived the knot should open.
- 8,333
6
votes
0
answers
186
views
How many items are there in the lab?
I am looking for how to complete the following question so that it gives a unique solution. Maybe somebody can give a visual solution.
A lab contains experimental equipment. 24 items are ready to use ...
- 117k
6
votes
1
answer
306
views
Creating accessible crosswords
Often, crosswords* posted to Puzzling have at least one of the grid or clues in an image. For visually impaired, blind, and/or screen-reader using people, or those who can't see images for some other ...
- 15.4k
4
votes
0
answers
349
views
Do minecart puzzles like this, with buttons that rotate track, exist?
This is the end result of me messing around with minecarts and moving floors.
The buttons change the orientation of either their nearest or their same-color track. Now I'm not asking you to solve the ...
- 143
4
votes
0
answers
158
views
Ideas on spatial puzzles for a city walk
Background.
With the relaxation of covid-related restrictions, there was a need for intelligent city walks. Walk here is a moving between city objects by a certain (deterministic/stochastic) route.
I ...
- 18.9k
4
votes
0
answers
124
views
Is there a Sudoku answer that has only a single minimal clue set?
User Abigail comments on the titling of "Do sudoku answers always have a single minimal clue set?"
:
I'd be surprised if there were a Sudoku which doesn't have at least 2 disjoint clue-sets.
Well ...
- 423
4
votes
0
answers
90
views
How to create a puzzle from a pre-existing, fixed data source?
Examples of what I mean:
Instructions lead puzzlers to a library where the names of donors are inscribed on bricks out front. Along with some piece of information that is given to them on a piece of ...
- 2,124
3
votes
0
answers
184
views
Seeking Software to Convert Line Drawings into Connect-the-Dots Puzzles
I am on the lookout for a software solution, whether free or premium, that is capable of transforming line drawing images into connect-the-dots puzzles. My interest lies in both vector and bitmap ...
- 2,423
3
votes
0
answers
181
views
Designing a new type of twisty puzzle
Recently, I was fiddling with my Rubik's cube and tried scrambling it only using R and U moves. I then tried to solve it using only R and U moves. I didn't use any cube rotations.
It was an ...
- 10.3k
3
votes
0
answers
424
views
How to solve this puzzle?
I have solved the sudoku. Scratching my head on the second part. Any hints?
It is not picked from any competition. One of my office colleagues usually post these types of puzzles on emails for fun ...
- 39
3
votes
0
answers
453
views
Logical descriptions of logic puzzles
What notations are there to describe a logic puzzle format? Here, I'm talking about logic puzzles like Sudoku, Bridges, Kakuro, Tents; games with exact rules and an exact & finite number of ...
- 131
2
votes
0
answers
85
views
What is the number of essentially different solutions for a 3Doku?
The 3Doku is a Sudoku-like puzzle with blocks of 4×4 cells on the faces of a cube. Instead of columns and rows, it has bands of cells that loop around the cube.
It has me wondering how many ...
- 5,148
2
votes
0
answers
197
views
What is the church secret?
This is really a request to make a puzzle. I am sometimes made to go to church. On the wall will be a series of what I would to think are secret clues and I would love to make a puzzle from them. The ...
- 7,845
2
votes
0
answers
89
views
Looking for a book or collection of specific type of puzzles
This is a reference request: my apologies in advance if it's not entirely appropriate for this SE. I recently came across this little puzzle: There are 20 apples in a basket on the floor. Around the ...
- 156
2
votes
0
answers
433
views
Most objective online linkable sudoku grader?
A Sudoku's difficulty level is often the first thing readers notice about a puzzle. For questions and answers showing a puzzle it would be nice to have a relatively objective linkable tester.
I've ...
- 10.3k