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Questions tagged [puzzle-identification]

This tag is for questions about the name or nature of a specific puzzle, given as much descriptive information about it as the asker possesses. For challenge questions where the asker knows the puzzle type and gives cryptic clues about it, use the [reverse-puzzling] tag instead.

36
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3answers
5k views

The coolest checkerboard magic trick

In the small town of Terni (Italy), there's a couple of young friends named Marco and Leonardo, who like to perform magic tricks to a restricted audience of common friends and relatives. They like to ...
31
votes
1answer
2k views

I have forgotten what the puzzle was

I have a notebook in which I draft little puzzles during meetings my free time. I came up with one that was to post the acronym version of famous quotes along with the author's initials and the ...
25
votes
2answers
2k views

Where has the last dollar gone?

Lately I have found different versions of this puzzle, I was wondering if it has a name or belongs to a specific kind, so that I can understand it better. Here it is: Peter got \$10 from his father,...
25
votes
2answers
18k views

What is this magic trick with 6 cards featuring numbers between 1 and 60?

I hope this is on topic. I have a set of kids' magic tricks but I have lost the instructions! I was hoping this might be a good place to get some help. Here is the first one. What is the trick and ...
23
votes
4answers
2k views

How can a logic puzzle be defined?

Myself and two others had a debate earlier over what separates a logic puzzle and a riddle. Friend A was arguing that a logic puzzle was a puzzle that required any kind of logical and lateral ...
19
votes
3answers
3k views

The origin of the blue eyes puzzle

The Blue Eyes puzzle is possibly the most popular induction-based puzzle known. Is it really known who was the first to come up with it (in any form). The link at xkcd says: I didn't come up with ...
18
votes
6answers
2k views

The case of the world’s easiest puzzles

   Welcome back, my friends, to the show that never ends.   We’ re so glad you could attend,    Come inside, come ...
17
votes
1answer
1k views

What is the name (and brand / year) of this puzzle?

First a bit of background. I'm a collector of twisty puzzles. I've been collecting them for almost 3.5 years now. Here is my current collection of 209 puzzles. As you may be able to tell by the ...
15
votes
2answers
1k views

Help with the name of this puzzle

When I was cleaning my basement I found one puzzle that my father gave me when I was a child. I really want to know the name of it! Could someone help me? The puzzle consist in 4 disks, and each ...
15
votes
1answer
2k views

What's the name of this puzzle, which consists of small cubes connected by elastics?

Does anyone knows the name of the puzzle showed in the image below? The objective is to mount a 3x3x3 cube such that all sides of this cube are equal. The small cubes of the image are linked by an ...
14
votes
1answer
2k views

Is this a new kind of liar puzzle?

I would like to ask if anyone has seen elsewhere this variation on the standard truth tellers/liars kind of puzzle. In the usual repertoire it is assumed that every person questioned knows the answer ...
12
votes
2answers
838 views

What is this magic trick with a sarcophagus shaped box and a set of tokens?

I have a set of kids' magic tricks but I have lost the instructions! I was hoping this might be a good place to get some help. Here is the second one. This one might be a little more tricky but what ...
12
votes
1answer
857 views

What is the name of this line-connecting game?

Can you tell me what is the name of the game I used to play in school? It's a game for two players. You need grid paper and two pens. The game is played on a 10x10 arena, shifted by half a grid to ...
11
votes
1answer
971 views

Is there an official name for visual puzzles based on observation skill?

Is there a common/official name for visual puzzles that are based strictly on the observation skill - like the common "Where is Waldo" pictures, "find all faces", "count all X in the picture (or find ...
10
votes
1answer
1k views

Identify an Online Puzzle: Website Based Puzzle

Around 2007-2009, I was introduced to a website which hid puzzle clues in website data such as picture code as well as normal puzzles using various different types of code breaking and cyphers. The ...
9
votes
8answers
2k views

Puzzle similar to 15-puzzle but more moveable pieces?

In the name of Science!™, I'm trying to look for (or, in the worst case, create) a puzzle/game similar to the n-puzzle whereby a player or player(s) have to put some pieces in a particular order (e.g. ...
9
votes
1answer
679 views

Looking to find the name and objective of this puzzle

I'm playing an escape room game that requires me to play this game. It's my first time coming across this type of puzzle so I'm confused as to what I am suppose to do with it. If anyone can tell me ...
9
votes
2answers
1k views

How do I find more enigmatic, no-clues-given puzzles?

Most of my awareness of puzzles and puzzle games has come from a decade of haphazardly stumbling around the internet. There's a flavor/genre that I particularly enjoy, but I haven't had much luck ...
8
votes
1answer
1k views

I'm stumped on a simple roman numeral puzzle

I was working on this puzzle called cupid which listed a bunch of greek gods. I filled in all the answers in the answer grid which were their roman counterparts. Since these answers were now left ...
8
votes
2answers
716 views

Is reverse-engineering crossword puzzles a thing?

I was recently trying to recreate a crossword puzzle based off of a picture of half the puzzle and the answer key. I found it to be very enjoyable. Is this a thing? Is there anywhere that I can find ...
8
votes
2answers
1k views

What puzzles can I make out of origami?

I recently made and solved a soma cube puzzle out of origami. What other puzzles can I make out of origami?                &...
8
votes
1answer
346 views

Kruskal's hard to refold envelope

In Wikipedia's bibliography of Martin Kruskal it is said: Martin, who had a great love of games, puzzles, and word play of all kinds, also invented several quite unusual origami models including ...
7
votes
5answers
1k views

Single letter chemical elements on a 2x2 grid

In the past somebody showed me the puzzle below. I remember the answer but not the entire solution. Here it goes: On a grid of 2x2 put four single letter chemical elements. The result should have ...
7
votes
6answers
755 views

A riddle in James Still's “River of Earth”

I'm working on paper for SAMLA 88 on riddles in James Still's novel River of Earth. There is one I can't seem to find an answer for. It goes like this: First green and then yeller, (sic. yellow) ...
7
votes
2answers
1k views

Need help solving this code puzzle. Possible binary?

Me and a friend are trying to solve a series of puzzles, and this is the last one I need to solve and I'm stumped. It's a Christmas themed puzzle titled 'bLitZEN'. The only hints given are that the ...
7
votes
2answers
377 views

Any ideas how to solve this wooden puzzle? (And anyone happen to know what it's called?)

Goal is to move all the red balls to one side, and all the "white" balls to the other side. The center piece slides left and right, and the balls can be slid around each side.
6
votes
2answers
332 views

Physical Teamwork Puzzles for Adolescents

I am trying to develop a list of physical teamwork puzzles for 11-16 year olds at camp. When I was a kid at camp, we sometimes had to solve puzzles that depended on equally team work, fitness and ...
6
votes
2answers
4k views

Remove first or last letter - What is the name of this word puzzle/type of word?

When I was a child I had a puzzle book. One of the puzzles involved finding words where you can remove one letter from the beginning or end of the word, and you still have a valid word. You can ...
6
votes
1answer
1k views

What is the difference between enigma puzzle and cryptograms?

Title is self-explanatory. I know that this question is bit too dumb. But I don't know how to say for sure if a puzzle is enigma or cryptogram. Both of them has a message to decipher. So, finally, ...
6
votes
1answer
196 views

Is there another name or site for this “Dominotion” puzzle?

I discovered this very old Javascript game in my old bookmarks. It's a great puzzle. http://www.math.ucla.edu/~tom/Games/dominotion.html Does anyone know another name for this puzzle or a site or ...
6
votes
1answer
190 views

What is this type of puzzle called?

for these puzzles you're given a set of letter pairings that you line up into a code via the overlapping letters as an example: you have pairs "CA", "CO", "DC" and "OD" for a 5-letter code. with the ...
6
votes
1answer
368 views

I have a puzzle and a solution… it's the method I'm after

The cipher message is: J B A Z R X K Z N T W K O Y E Z The answer is: T O N G L A N D B R I D G E How did I (or more accurately my father) arrive at the answer?
5
votes
3answers
450 views

what can we call this?

I have recently received this woody puzzle toy. What's its name ?
5
votes
1answer
300 views

3-sided pyramid with 9 red and white triangular pieces on each side

When I was in my teens in 1980s Britain a puzzle was created that came with a prize of 1 million pounds sterling (USD$ 1.6m) for the person who submitted the solution. It consisted of a pyramid with ...
5
votes
1answer
2k views

Can anyone help me identify these logic puzzles?

Can anyone help me find out what these kinds of puzzles are? 1. B&W Grid Puzzle There's a grid with black & white blocks. A black block will turn white if it's surrounded by 3 white blocks. ...
5
votes
2answers
1k views

What are these types of puzzles called?

What is the name/type/search term I can use to find similar puzzles to the one below (so I can practice them, as I really struggle currently wrapping my head around them)? Any type of question where ...
4
votes
3answers
214 views

Calculating with Symbols

& x & = €& What is &? Each Symbol is one Number. Possible answers: 0, 3 , 7 , 6 Correct answer: $6$, because $6 \times 6 = 36$ What is the correct name of this kind of ...
4
votes
3answers
394 views

Do Magicians Really Exist?

Disclaimer: I am not affiliated with the following two users in any way: What I would like to know is: Does the following paradox have a name? What is the fallacy of the argument? If possible, where ...
4
votes
2answers
394 views

Puzzle that consists of all possible combinations of pieces containing 5 squares

When I was a child my father gave me a wooden puzzle that consisted of pieces that represented every possible combination of 5 squares. The goal was to arrange the pieces in various rectangular ...
4
votes
2answers
120 views

Identify this type of graph puzzle

There are $V-1$ pieces, each with an identifying symbol. The board is a graph with $V$ vertices and some number of edges $E$. The idea is to move around the pieces so that each piece's symbol matches ...
4
votes
1answer
138 views

Switching puzzle identification

I'm looking for the name of a puzzle where the goal is to activate (or deactivate) a set of buttons. If you activate a button, it switches the state of this button and of its neighbour. Say you ...
4
votes
1answer
112 views

Is there a name for a puzzle class where later puzzles rely on effects of previous puzzles' answers?

There's a class of puzzles where: The puzzles come in a themed set Usually, the puzzle requires you to answer by listing the steps to do something The subsequent puzzles are often reliant on facts ...
4
votes
1answer
657 views

Number circle with gaps

Does anyone know what this is and how to solve it? Thank you.
4
votes
1answer
274 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 ...
4
votes
5answers
701 views

Trying to find a water measuring puzzle

I am trying to find this puzzle which I once came across as a kid, but can't seem to recall it properly now (or find it). It goes something like this. There is a reservoir of capacity 20 litres ...
3
votes
3answers
1k views

Neanderthal Man

A neanderthal walks into a room. Inside are a man and a woman with large sticks, surrounded by dozens of unintelligible glass discs and squares. The man (with the stick) comments he can see the ...
3
votes
3answers
503 views

Name of this kind of word puzzle: find a word with string of letters in the middle

This is a puzzle I have used with my school students, and I am wondering if it already has a name. The idea is to give a string of (often three) letters and to find a word with that string of letters ...
3
votes
1answer
317 views

Is there a more specific name for this type of arithmetic puzzle?

There are arithmetic puzzles with some numbers (typically four) and rules for combining them (perhaps just the four basic arithmetic operators or including things like combining digits 2 and 3 to make ...
3
votes
1answer
175 views

Arithmetic Puzzle

The British Independent and i newspapers run what they call an "Arithmetic Puzzle", which comprises a grid of nine cells, with each cell separated from the others by arithmetic symbols: (+ - / *), and ...
3
votes
1answer
260 views

What makes the “Who has the hat puzzle” so hard? How can this be effectively reused?

TL;DR: How do I use "outside of the box" thinking well in puzzle making? One of my friends came to school with a puzzle. It's a rather popular puzzle, but, us never having heard of it before, were ...