Unanswered Questions
45 questions with no upvoted or accepted answers
27
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0
answers
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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
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
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
7
votes
0
answers
168
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Logic and geometry problem 2
My question is whether or not a deadlock can occur in Crisscross. A deadlock is defined as a position, an arrangement of checkers, in which the board has been filled but neither player has won.
...
- 6,959
6
votes
0
answers
291
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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
190
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Decoding a mystery sequence of falling boulders
I'm trying to unravel the algorithm for an old 1980s game called Wanderer. The game is a simple grid: 16 cells high (all visible in the image) and 40 cells wide (though not all are depicted). In the ...
- 161
6
votes
0
answers
186
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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
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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
5
votes
1
answer
478
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Oh no, my chocolate banana puzzles are not unique!
There is a hidden message (7, 2) inside the solutions of the nine puzzles. An answer will only be accepted if it correctly identifies said message.
Here are the Chocolate Banana puzzle rules. Each ...
CommunityBot
- 1
5
votes
0
answers
263
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The Jumbled Jaunts of Jormungandr
Jormungandr, the Snakebot of Doom has left New York. The world's armies and air forces have been decimated and cannot stop it. It has moved on from New York, and has flattened the following North ...
- 151
4
votes
0
answers
349
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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
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
1
answer
316
views
5 guards, and get rid of the timer!
I like the lies and statistics question, but it is a bit too violent, so I suggest a (slightly harder) and way less violent version.
You are looking at the basement of your house, and you see three ...
- 532
3
votes
0
answers
218
views
Filling in an 8x8 minesweeper grid with mines (Day 2: Diagonal Reverse Synesthesia)
Note: This is based off of Day 30 of the Minesweeper Advent Calendar on heptaveegesimal.com
So my first minesweeper puzzle did not go so well. I will try to do better today.
First off: This is a torus ...
- 2,423
3
votes
0
answers
288
views
Find a missing number in this 28x21 grid
355|066|677|855|677|081|044|855|355|062|216|677|216|855|224|044|034|046|051|677|355|264|044|046|044|351|886|043
043|044|886|357|886|352|225|357|043|222|993|001|233|968|046|225|062|041|351|886|043|227|...
- 21.9k
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
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
197
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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
179
views
Making a large Candy Crush unicolor box
I played the arcade game Klaxxon a lot (comparable mechanics to Candy Crush, long before the latter even existed) and always wondered if I could get a monster super ultra bonus by making a 3 x 3 ...
- 879
2
votes
0
answers
193
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What is the Name of this Toggling Puzzle?
I came across an interesting toggling puzzle while looking through a code repository on GitHub. I want to find out more about it and see if there is any info on how to solve it, how to ensure ...
- 10.3k
2
votes
0
answers
1k
views
How to generate a Zebra Puzzle?
Zebra puzzle, is a very famous puzzle, where several statements are given regarding a group of people and some of their qualities, and the solver has to deduce all the qualities of each person in the ...
- 2,726
2
votes
0
answers
244
views
How to hide coded messages in kaleidoscopes
Has anyone ever made or ever heard of making coded messages using repeating patterns or colors in kaleidoscopes? I had the idea for a project and was wondering if anyone had any experience with ...
- 3,441
2
votes
0
answers
405
views
WITLESS Inscription 5
2 days ago, TheGreatEscaper had to take down Inscription 5 of WITLESS - A Puzzling Journey, due to (can you clarify TheGreatEscaper?) the lack of a solution.
Can anyone think of a valid Inscription ...
CommunityBot
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1
vote
0
answers
33
views
Flea in six boxes
Flea is hiding in one of six boxes. To find the flea you can open a box ( which cost $1). If we did not guess correctly, after closing the box flea will jump randomly to neighboring box to the left or ...
- 13.5k
1
vote
0
answers
191
views
Deadlock possible in Minefield?
A deadlock is a position in which neither player has won and neither player has a legal placement available. My question is, "Can you find a deadlock position in Minefield?" And, if you ...
- 10.3k
1
vote
0
answers
216
views
Multi smol boi puzzle I: apologies
Disclaimer: Jryy, svefg bs nyy, V jbhyq yvxr gb ncbybtvmr. Abg sbe npgvbaf (jryy bxnl, sbe npgvbaf), ohg sbe zl fzby obv pvcure. Vg frrzf gung zl svefg fzby obv chmmyr jnf whfg n ovg gbb uneq. Fb, gb ...
- 2,423
1
vote
0
answers
222
views
Logic puzzles: Flags and Stripes
Puzzle 1
Puzzle 2
Clues
The only instructions given to solve this is that the answer can be alpha-numeric text.
Ideas
Puzzle 1:
3 flagpoles seem to have top-balls (called a truck), while 3 don't
...
- 149
1
vote
0
answers
194
views
Puzzle Challenge: Unraveling the the Circular Conundrum
Known are five numbers: 1, 2, 3, 4, and 5, arranged clockwise. The number after 1 is 2, after 2 is 3, after 3 is 4, after 4 is 5, and after 5 is 1. Whenever two adjacent numbers meet, it triggers a ...
- 6,554
1
vote
0
answers
138
views
Circuissonne Diagrams
This puzzle is part of the Monthly Topic Challenge #7: Board games.
And also, this puzzle is also a parody of XKCD's 730.
We're starting a project on Explain XKCD (link currently not available) to ...
- 2,689
1
vote
0
answers
313
views
What are sequences of letters/symbols for creating a cipher?
I have two gears with different numbers of teeth (20 and 10):
The small gear makes two turnovers, while the large gear makes one turnover only.
My idea is to use a large gear as an alphabet wheel (...
- 10.3k
1
vote
0
answers
283
views
What is the most appropriate clue here?
Background. I'm specifically interested in how to design a puzzles chain for a team (8-10 teenages). We are going to play at a Scientific Museum. The main the idea is to find a key and open a lock.
...
- 13
0
votes
2
answers
117
views
Weighing Coins -- a Different Approach
This is a question of my own devising. You have a double pan scale which will tell you whether 2 coins or 2 groups of coins weigh the same or whether one side is heavier than the other side. You have ...
- 2,497
0
votes
0
answers
211
views
Continue with sudoku - how do I scan for next steps?
I filled some cells, but am stuck here. I cannot go any further.
How do I advance? How would I scan the Sudoku to recognize next steps?
I've taken the puzzle from https://play.google.com/store/apps/...
- 60.6k
0
votes
0
answers
93
views
Heuristic function for estimating nurikabe puzzle state
I am trying to write a program for solving nurikabe puzzle. I need a method to approximately represent the state of the game in one number, to choose the best way for the algorithm to continue. I can'...
- 10.3k
0
votes
0
answers
175
views
How to create a big, but good Hidato puzzle?
The goal of Hidato is to fill the grid with a series of consecutive numbers adjacent to each other orthogonally or diagonally, and all tiles are required to be filled in.
So, as you may or may not ...
- 2,423
0
votes
1
answer
341
views
Sudoku variants #1: Schrödinger's Grave (6x6 grid)
Not in conjunction with my Minesweeper puzzles - that would be concerning!
Inspired by Cracking The Cryptic's video "The Graveyard Of Schrödinger" (original gimmick by fjam)
How this ...
CommunityBot
- 1
0
votes
0
answers
86
views
Filling in an 8x8 minesweeper grid with mines (Day 7: Double Mines)
Note: This uses anti, single, double, and triple mines
Yes, I realize that when I uploaded Day 6, I mentioned in the disclaimer that I planned for this to be released tomorrow, along with Day 8, ...
- 2,423
0
votes
1
answer
498
views
Understanding solution for this puzzle where truth-tellers and liars describe game scores
Source (Page 26-28)
Frieda was fond of visiting exotic locations. On her visit to the island of Yippiekaiyay, she was surprised that the natives of the island could be classified into one of two ...
CommunityBot
- 1
0
votes
0
answers
190
views
A mysterious letter in the mail
The other day I got a letter in the mail....
It was a weird one, one that obviously boasts a puzzle.
The Letter
It states the following
I like pigs, don't you? Won't you come and see the piggies with ...
- 10.3k
0
votes
0
answers
270
views
Reverse Engineering Computer Formula
A computer uses an unknown formula to create a 4 digit Output using specific Input. Here are 3 examples:
Input = 20066 : 020470 : 47 : 1 : 322267 Output = 0927
Input = 20066 : 020470 : 46 : 3 : 198684 ...
CommunityBot
- 1
0
votes
1
answer
203
views
Good cipher with a "password"?
I'm starting to create a puzzle, but I'm going to need a cipher that will be impossible (or at least very difficult) to crack, but can be easily decoded with a key. I first looked at the one-time pad ...
- 1,863
-1
votes
0
answers
127
views
How to match pairs on raw tables?
The idea for the puzzle came from working with test score tables. In this case, the raw tables indicate an internal identifier that differs from user_id. To match, you have to download solutions and ...
- 1,701
-1
votes
2
answers
472
views
Italian Exhibition - A Zebra Puzzle (Einstein's Riddle) Variation
You can play this Zebra Puzzle here: https://www.brainzilla.com/logic/zebra/italian-exhibition/
Woman #1
Woman #2
Woman #3
Woman #4
Woman #5
shirt
name
surname
painter
time
age
Five women are ...
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