Unanswered Questions
25 questions with no upvoted or accepted answers
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
10
votes
0
answers
2k
views
3D ring/rope wooden puzzle solution?
I have a Eureka 3d "Puzzle G":*
The box lists 3 puzzles:
Remove the ring
Remove the rope
Move the ring to the other side
While I was able to solve shows the first puzzle, I haven't ...
- 406
9
votes
1
answer
2k
views
Is there another name for this puzzle? (Kyudoku, Nine Find)
Is there another name for this type of puzzle? I can only find two examples of it online:
https://www.brainzilla.com/logic/kyudoku/
http://ninefind.com/
In the game you start with a 6x6 grid filled ...
CommunityBot
- 1
8
votes
0
answers
277
views
Doubling the cube with rational Meccano strips
In three monographs published in 2006, 2008 and 2014 Gerard 't Hooft considered "Meccano mathematics": how to construct specified distances and regular polygons by a rigid system of ideal ...
- 7,820
7
votes
0
answers
387
views
Wooden disentanglement puzzle with two metal parts, and a string ended by two wood balls
I am convinced this puzzle is not possible, yet it is not easy to prove. It seems, by analogy with another puzzle, that if the board can't pass into a metal ring, it can't be solved.
Description:
A ...
- 10.3k
7
votes
1
answer
1k
views
Name and solution of puzzle to rotate all arrows to same direction
In this puzzle, when you click an arrow, all arrows immediately next to it (diagonally included), as well as the arrow you clicked itself rotate 90 degrees. The goal is to get all the of arrows to ...
CommunityBot
- 1
6
votes
0
answers
291
views
Trying to find a 2020 puzzle hunt with a puzzle based on Among Us
I am trying to find a puzzle hunt that I believe was held in 2020. It contained a puzzle based on the game Among Us with 26 characters, and you had to decide who were the imposters. The imposters all ...
- 10.3k
6
votes
0
answers
314
views
Looking for a kid's puzzle, cannot remember title
I'm looking for a kids' logical puzzle I saw in a Brazilian puzzle magazine several years ago. A farmer had a square farm with four houses and twelve trees and he wanted to divide it between his four ...
- 35.6k
6
votes
1
answer
505
views
Late 18th/early 19th century numbers grid
I was researching an historical figure on the Isle of Man, Capt George Quayle (b.1751 - d.1835), and in amongst the museum's papers was this numbers grid which was part of his effects. The museum ...
CommunityBot
- 1
4
votes
0
answers
164
views
Wooden puzzle with multiple balls on strings attached to a central hook, from which metal arms connect top and bottom
I bought this puzzle few years ago at a market. I couldn't solve it since. I started to think it was wrongly assembled, therefore can not be solved. Tried to find the solution on the internet/YouTube ...
- 10.3k
4
votes
0
answers
251
views
Is there a name for crosswords where the surface of the vertical clues resemble the solutions to the horizontal and vice versa?
Occasionally a crossword (often cryptic ones) would have a twist to them, such as being a 'nina':
A Nina is a special feature of the crossword grid: a word, words or phrase hidden within a pattern of ...
- 6,000
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
418
views
What type of puzzles are the statue puzzles in Super Lucky's Tale, and what method should be used for solving them?
This question is about a set of puzzles in the video game "Super Lucky's Tale" (as well as its Nintendo Switch remake "New Super Lucky's Tale"). They are known as statue puzzles as ...
- 299
2
votes
0
answers
187
views
Do puzzles like "write 120 using four 8" have a specific name?
Here on puzzling SE there is the category "calculation puzzle", but it's very broad. I'd like to know if somebody gave a specific name for such puzzles.
- 10.3k
2
votes
1
answer
266
views
Strange configuration for last layer
I am trying to solve my Rubik's cube but last layer has got strange configuration which I am not able to solve. I'm following algorithm shown on this page.
Here is the layout:
As you can see green ...
CommunityBot
- 1