instruction stringlengths 15 30k |
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All odd numbers from 51 to 5001 are written. What is total number of digits used?
|
A standard nonlinear, non-clued wordsearch. Similar to the [Cluelessly searching for words](https://puzzling.stackexchange.com/questions/16087/cluelessly-searching-for-words) series, but here letters can be used by multiple words.
## Rules ##
- The words can run in any direction (orthogonal or diagonal) and do not ... |
[![enter image description here][1]][1]
What fraction of the larger semicircle is filled? The two smaller semicircles are of equal size.
This is a puzzle originally set by Catriona Agg, who is a puzzle setting genius.
[1]: https://i.stack.imgur.com/6XFzI.jpg |
What fraction of the larger semicircle is filled? |
After my [first one](https://puzzling.stackexchange.com/questions/105714/selfmate-in-how-few-1) was solved so quickly, it's time for the next meal! It's another one that I created for the same mentioned site. *Warning*: this is a fairly long one, even with its simple strategy!
Me, SuperProblem.ru on 4/7/2020, After ... |
Selfmate In How Few? #2-Taking Flight |
I have a lover, I love her so
She has a special name as we all do
But I wish, from me to you, not to tell
A secret kept is a secret kept well
*****
But if you truly want to know
I shall soon reveal her name to you
However, first, let's a game, a test
Let's see if I am, by you, get bested
**... |
I'm in a cabal so secret and nefarious that very few of its members even know they are members. Our ranks include:
1. Former Seattle police chief **Carmen Best**
1. Physician and diplomat **Deborah Birx**
1. Writer **Edward Abbey**
1. Washington state representative **Frank Chopp**
1. Model **Kate Moss**
... |
<sub>This is in the spirit of the [What is a Word/Phrase™][1] series started by [JLee][2] with a special brand of [Phrase™][3] and [Word™][4] puzzles.</sub>
If a word conforms to a special rule, I call it a **Icy™** word.
Here is a list of Icy™ and Not Icy™ Words:
| Icy Word™ | Not Icy Word™ |
| ---------- | --... |
What is an Icy Word™? |
If a word conforms to a special rule, I call it a **Fair Word**. If it does not conform to this rule, I call it an **Unfair Word**.
Here is a list (not exhaustive) of some Fair Words and Unfair Words:
| Fair Words | Unfair Words |
| ---------- | ------------ |
| BEDSPREAD | DUVET |
| PRONUNCIATION| SPELL... |
What is a Fair Word? |
I am trying to solve a difficult cryptogram puzzle with a very unusual letter distribution:
Out of 98 letters, it has 13 O's but no more than 6 of any other letter. The remaining letters appear to occur in a normal random distribution: 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 0, 0, and tw... |
I can't tell you what it represents as I suspect it's a pop-culture reference...
>! possibly Star-Wars related as the title is very Yoda-esque,
... but I'm unfamiliar with it, so here's where I've got to with each item:
1.
>! Binary, BIN, the number 1005, or 10-bits. Also a character code for ϭ which looks like... |
I'm in a cabal so secret and nefarious that very few of its members even know they are members. Our ranks include:
1. Former Seattle police chief **Carmen Best**
1. Physician and diplomat **Deborah Birx**
1. Writer **Edward Abbey**
1. Washington state representative **Frank Chopp**
1. Model **Kate Moss**
... |
I am trying to solve a difficult cryptogram puzzle with a very unusual letter distribution:
?QGIYWJUJEAOKGOTKKCGGXGMYPLTOYGFNOPIOZPOMBLOQCCWT
?DONNIOHBRXBMEFJAOXOOLXETCQEYNTZPMFUNENWXOWXFLYRZ
Out of 98 letters, it has 13 O's but no more than 6 of any other letter. The remaining letters appear to occur in a nor... |
I arrived at this ciphertext as a result of a particular decryption step from the famous unsolved "Kryptos 4" cipher. It has a very unusual letter distribution:
?QGIYWJUJEAOKGOTKKCGGXGMYPLTOYGFNOPIOZPOMBLOQCCWT
?DONNIOHBRXBMEFJAOXOOLXETCQEYNTZPMFUNENWXOWXFLYRZ
Out of 98 letters, it has 13 O's but no more than ... |
I'm in a cabal so secret and nefarious that very few of its members even know they are members. Our ranks include:
1. Former Seattle police chief **Carmen Best**
1. Physician and diplomat **Deborah Birx**
1. Writer **Edward Abbey**
1. Washington state representative **Frank Chopp**
1. Model **Kate Moss**
... |
How to solve this 3D wooden puzzle which becomes an interlocking cross? |
Does anybody know the history of the puzzle posted by Mario Bilotti? Who created this puzzle? Who deserves the credit?
[https://puzzling.stackexchange.com/questions/2325/find-10-triangles-in-a-five-pointed-star-using-two-straight-lines][1]
Apologies in advance if this isn't what this forum is for.
Thanks in ... |
Does anybody know the history of this star/triangle puzzle? |
Does anybody know the history of the puzzle posted by Mario Bilotti? Who created this puzzle? Who deserves the credit?
[https://puzzling.stackexchange.com/questions/2325/find-10-triangles-in-a-five-pointed-star-using-two-straight-lines][1]
[1]: https://puzzling.stackexchange.com/questions/2325/find-10-triangl... |
I recently came across this question:
https://puzzling.stackexchange.com/questions/36837/one-rectangle-indivisible/36844#36844
The goal is, by tiling 2x1 rectangles, to create a larger rectangle that cannot be split into 2 smaller rectangles.
But my question is this:
if using **m x n** rectangles, when is it im... |
<sub>This is in the spirit of the [What is a Word/Phrase™][1] series started by [JLee][2] with a special brand of [Phrase™][3] and [Word™][4] puzzles.</sub>
If a word conforms to a special rule, I call it a **Icy™** word.
Here is a list of Icy™ and Not Icy™ Words:
| Icy Word™ | Not Icy Word™ |
| ---------- | --... |
<sub>This is in the spirit of the [What is a Word/Phrase™][1] series started by [JLee][2] with a special brand of [Phrase™][3] and [Word™][4] puzzles.</sub>
If a word conforms to a special rule, I call it a **Icy™** word.
Here is a list of Icy™ and Not Icy™ Words:
| Icy Word™ | Not Icy Word™ |
| ---------- | --... |
<sub>This is in the spirit of the [What is a Word/Phrase™][1] series started by [JLee][2] with a special brand of [Phrase™][3] and [Word™][4] puzzles.</sub>
If a word conforms to a special rule, I call it a **Icy™** word.
Here is a list of Icy™ and Not Icy™ Words:
| Icy Word™ | Not Icy Word™ |
| ---------- | --... |
So Graylocke Inc. (the previously hidden competitor to Retudin's Mazes Inc. mentioned [here](https://puzzling.stackexchange.com/questions/104507/chain-puzzle-tabletop-games-7-maze/104529?noredirect=1#comment295394_104529)) has produced a new product *just* in time for the holiday season. We present to you **Graylocke'... |
These are
>! [Magic Eye images](https://en.wikipedia.org/wiki/Magic_Eye)
which
>! each have a letter:
>!
>! He: **O**
>! Ne: **Y**
>! Ar: **D**
>! Kr: **M**
>! Xe: **L**
>! Rn: **E**
>!
>! These letters anagram to MELODY, which might be the intended answer? (I'm not seeing a 'nicer' ... |
So I decided to write this puzzle with a story, something like [that](https://puzzling.stackexchange.com/questions/30309/my-puzzling-girlfriend), hope you like it. Happy puzzling! Here is a story:
<hr>
The undercover agent John has been infiltrated into a terrorist cell. They was planning something bad. Some hack o... |
Ohh, NSA Again? |
So I decided to write this puzzle with a story, something like [that](https://puzzling.stackexchange.com/questions/30309/my-puzzling-girlfriend), hope you like it. Happy puzzling! Here is a story:
<hr>
The undercover agent John had infiltrated a terrorist cell. They were planning something bad, a hack or something.... |
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 with the numbers 1 to 9. One number on the grid is circled. The aim is to remove numbers (you can't remove th... |
This is an attempt at understanding how @Vepir's answer works. Is it just a crazy coincidence or can we expect other similar solutions?
So what we need to get a handle on is why 1111 divides 6^5+1 in other words why 6^5 = -1 mod 1111. First thing to observe is 1111 = 11x101 with 11 and 101 prime numbers. Time for F... |
* You could say I'm straight, or you could say I'm gay.
* You could say I'm a virgin, or you could say I've had sex.
* You could say I've always been the youngest of my family, or you could say I had a little brother.
* You could say I'm just as happy to date a man as a women, but you can't say I'm Bi.
* You could ... |
> I am not real, <br />
but I am part of a complicated thing. <br />
Two is negative?
> What am I? |
* You could say I'm straight, or you could say I'm gay.
* You could say I'm a virgin, or you could say I've had sex.
* You could say I've always been the youngest of my family, or you could say I had a little brother.
* You could say I'm just as happy to date a man as a women, but you can't say I'm Bi.
* You could ... |
Monday morning baby Alex awoke in his mother's loving embrace. His mother changed him, fed him, and snuggled him, which he of course loved. But when she went to get her coat and suitcase baby Alex got upset as he realized she was getting ready to leave him for work. Not wanting her to go he cried and cried begging h... |
<sup>An entry in [Fortnightly Topic Challenge #45: Flags](https://puzzling.meta.stackexchange.com/questions/7099/fortnightly-topic-challenge-45-flags)</sup>
The cheesemonger wants to arrange the wheels of cheese on display. The display case has two shelves with space for three wheels of cheese on each. He has six wh... |
What is the most number of **consecutive captures** that you can have on the **same square** in a standard game of Chess? Assume that black and white alternate in taking turns. Good luck! |
I got this question in an online assessment for a job interview, and it's still puzzling me.
This is the sequence:
> 7, 30, 84, 81, ?
Possible answers are:
> -77, -93, 106, 73 |
What's the most logical next number in this integer sequence? |
Previous Puzzle:- https://puzzling.stackexchange.com/questions/105989/kyudoku-introduction
There will be numbers in a grid. You just have to circle nine unique numbers (1 to 9) such that each row and column has sum of 9 or less. In some puzzles, one or more circled numbers may already be given.
Here is today's pu... |
Kyudoku :- Merry Christmas? |
Previous Puzzle:- https://puzzling.stackexchange.com/questions/105989/kyudoku-introduction
There will be numbers in a grid. You just have to circle nine unique numbers (1 to 9) such that each row and column has sum of 9 or less. In some puzzles, one or more circled numbers may already be given.
Here is today's pu... |
Previous Puzzle:- https://puzzling.stackexchange.com/questions/105989/kyudoku-introduction
There will be numbers in a grid. You just have to circle nine unique numbers (1 to 9) such that each row and column has sum of 9 or less. In some puzzles, one or more circled numbers may already be given.
Here is today's pu... |
Are you
>! A work?
Explanation:
>! Worms aren't gender differentiable; they have the same organs. When two worms made, either one of them may end up carrying the baby. |
Are you
>! A worm?
Explanation:
>! Worms aren't gender differentiable; they have the same organs. When two worms made, either one of them may end up carrying the baby. |
Previous Puzzle:- https://puzzling.stackexchange.com/questions/105989/kyudoku-introduction
There will be numbers in a grid. You just have to circle nine unique numbers (1 to 9) such that each row and column has sum of 9 or less. In some puzzles, one or more circled numbers may already be given.
Here is today's pu... |
What's the next number in this sequence? - 7, 30, 84, 81,? |
What's the next number in this sequence? 7, 30, 84, 81,? |
Previous Puzzle:- https://puzzling.stackexchange.com/questions/105989/kyudoku-introduction
There will be numbers in a grid. You just have to circle nine unique numbers (1 to 9) such that each row and column has sum of 9 or less. In some puzzles, one or more circled numbers may already be given.
Here is today's pu... |
Since we are talking about a standard game of chess (although with both players co-operating), we know that there are four pieces that cannot possibly make a capture in the series:
* the two bishops on the wrong coloured squares
* one of the kings (the other can be the last to capture)
* the first piece that gets ... |
Not the answer to the grid but the bonus question:
The answer is:
>! 0 as the number of the shaded grid as the numbers represent decimals of $\pi$
Also:
>! Is it related to the title? |
Previous Puzzle:- https://puzzling.stackexchange.com/questions/105989/kyudoku-introduction
There will be numbers in a grid. You just have to circle nine unique numbers (1 to 9) such that each row and column has sum of 9 or less. In some puzzles, one or more circled numbers may already be given.
Here is today's pu... |
So Graylocke Inc. (the previously hidden competitor to Retudin's Mazes Inc. mentioned [here](https://puzzling.stackexchange.com/questions/104507/chain-puzzle-tabletop-games-7-maze/104529?noredirect=1#comment295394_104529)) has produced a new product *just* in time for the holiday season. We present to you **Graylocke'... |
So Graylocke Inc. (the previously hidden competitor to Retudin's Mazes Inc. mentioned [here](https://puzzling.stackexchange.com/questions/104507/chain-puzzle-tabletop-games-7-maze/104529?noredirect=1#comment295394_104529)) has produced a new product *just* in time for the holiday season. We present to you **Graylocke'... |
What is the most number of **consecutive captures** that you can have on the **same square** in a standard game of chess? Assume that black and white alternate in taking turns. Good luck! |
A hastily-made festive gift for PSE, and a test to see whether it is ever possible to make a puzzle faster than it takes someone here to solve it! :P
[![enter image description here][1]][1]
**Clues:**
1A One of us in gold-coated regret
4A Mixing up dictionary with basic directions is more mature?
5A Stop... |
There are 8 soldiers, gathering and lining up every morning for their military service. The commanders at the head of these soldiers demand that the morning lineup of these soldiers be arranged differently from the next day according to the following rule:
- Any three soldiers cannot be lined up next to each other i... |
There are 8 soldiers, gathering and lining up every morning for their military service. The commanders at the head of these soldiers demand that the morning lineup of these soldiers be arranged differently from the next day according to the following rule:
- Any three soldiers cannot be lined up next to each other i... |
There are 8 soldiers, gathering and lining up every morning for their military service. The commander at the head of these soldiers demands that the morning lineup of these soldiers be arranged differently for every next day according to the following rule:
- Any three soldiers cannot be lined up next to each other ... |
I can see how promoting a pawn to a knight can be beneficial if it can attack immediately in L-shape. However is it ever beneficial to promote a pawn to a bishop or a rook, instead of a queen in standard Chess? |
Show how the following words and phrases may be sorted into pairs.
<pre>
+--------------+--------------+--------------+--------------+
| REITERATING | DRILLING | MR GUM | LONG |
+--------------+--------------+--------------+--------------+
| ANGLICANS | MAN SINS | ... |
Happy Boxing Day! Yesterday was Christmas Day, and in a few days, it will be New Year's Day. Each holiday season, those two holidays are always on the same day of the week (in this case, Friday). But in 1914, Christmas Day and New Year's Day were on different days of the week. Why? |
Would it be because:
>! the question references both holidays as being of the same year? 12/25/14 and 1/1/15 would be the same day of the week, but 12/25/1914 and 1/1/1914 are not necessarily. |
I believe not. We did just learn about it existing a few days ago. Plus, googling the word Kyudoku gives [this link][1] and [this video][2], so I believe that Kyudoku is the only existing name.
[1]: https://www.geniol.com.br/logica/kyudoku/
[2]: https://www.youtube.com/watch?v=N1_6VPd3W_s |
<sup>An entry in [Fortnightly Topic Challenge #45: Flags](https://puzzling.meta.stackexchange.com/questions/7099/fortnightly-topic-challenge-45-flags)</sup>
---
"Hey Pat, I got your latest tour brochure. It looks really fun; you know I love military history! But times are tough, and I did ask you for something from... |
Einstein had made quite a good zebra puzzle tough enough to confuse many people's brains. Today I present even more tougher one, will you be able to solve it?
There are 5 customers , who bought a different set of furniture, each with different prices. Every customer wore a different coloured shirt and they all had d... |
There are 8 soldiers, gathering and lining up every morning for their military service. The commander at the head of these soldiers demands that the morning lineup of these soldiers be arranged differently for every next day according to the following rule:
- Any three soldiers cannot be lined up next to each other ... |
Einstein had made quite a good zebra puzzle tough enough to confuse many people's brains. Today I present even tougher one, will you be able to solve it?
There are 5 customers, who bought a different set of furniture, each with different prices. Every customer wore a different coloured shirt and they all had differe... |
Show how the following words and phrases may be sorted into pairs.
| | | | |
|:------------:|:------------:|:------------:|:------------:|
| REITERATING | DRILLING | MR GUM | LONG |
| ANGLICANS | MAN SINS | ULSTER | GRIPES ... |
[![enter image description here][1]][1]
Listen to the mp3 file present at the link: https://drive.google.com/file/d/1nmuXIomqWKSmP4yXQ92E0DQhgVAPUnXL/view?usp=sharing
[1]: https://i.stack.imgur.com/Hn2C4.jpg |
> I am not real, <br />
but I am part of a complicated thing. <br />
Two is negative?
> What am I? |
There is a cluster of islands, which a private pilot flies over at dawn. The pilot can see 17 islands. A week later, she makes the same flight, at dawn, following the same altitude, speed, path and direction, and this time she sees 11 islands. Why did the count change?
The pilot has perfect vision, a clear view of ... |
Why did the number of islands change? |
> There's this little helpless creature that would fear,
>
> how Christmas is over and coming is a new year.
>
> For a demon horned creature would shortly arise,
>
> to take the little creature's home, despite its cries.
What are the two creatures? |
*Not mathematical yet I represent a half of sorts,*
*With furrowed brows and a holy sign I am formed,*
*My colouring a little 'boorish' you could say,*
*My opposite North-easterly?!*
What am I?
|
What two words am I looking for in the puzzle below? (The title too is a clue).
*35437*
*When a Deity sees its reflection,*
*Clip the best of rediscoveries approximately.*
*Blow has been blown when it is done below the belt,*
*Being confused with the quartet's sound,*
*Making a faux faith, inside... |
If you choose an answer to this question at random, what is the chance you will be correct?
A) 25%
B) 50%
C) 60%
D) 25%
[![][1]][1]
<sub>(source: [twimg.com](https://pbs.twimg.com/media/B57kNq4IYAEA-Zj.jpg:large))</sub>
[1]: https://i.stack.imgur.com/qhIKi.jpg |
There are many solutions with:
>! 9 tetronimos.
Here is another one:
>! [![][1]][1]
<sub>(source: [jinchess.com](http://www.jinchess.com/chessboard/?p=-P--p-P--PPpppPP-P--P-P-pppPP-p--p--Pppp--Pp--P-PPPppPP----p--P-&ps=mark-flat))</sub>
>! (Thanks Sleafar for showing me how to post a solution without m... |
Can you help me with this riddle?
A person is trapped in a room that has 3 locked doors and there are three colored keys: red,yellow, and green. He was provided the following information:
- Each of the green and the yellow keys can unlock only one door, but the red key can be used to unlock two of the doors
- Once... |
What should replace the question mark on this list?
> JBNRS, HF, GM, JPD, VL, AELMP, MS, WB, CB, GS, EC, SV, PD, PEJP, ?, …
Hint, added later:
>! There's a hint alluded to via wordplay in the post title. |
Can you help me with this puzzle?
A person is trapped in a room that has 3 locked doors and there are three colored keys: red, yellow, and green. He was provided the following information:
- Each of the green and the yellow keys can unlock only one door, but the red key can be used to unlock two of the doors
- Onc... |
*Not mathematical yet I represent a half of sorts,*
*With furrowed brows and a holy sign I am formed,*
*My colouring a little 'boorish' you could say,*
*My opposite North-eastern?!*
What am I?
|
*Not mathematical yet I represent a half of sorts,*
*With furrowed brows and a holey sign I am formed,*
*My colouring a little 'boorish' you could say,*
*My opposite North-eastern?!*
What am I?
|
Have fun with this riddle:
> I am everywhere but I am relative.<br/>
That means, I am slower when I move fast.<br/>
I am also faster if something interesting happens.<br/>
I was born with an explosion, with a human or with an operating system, depending on what is important to you. <br/>
I am unidirectional but ... |
This is my second (easy) riddle:
You can see me but you see through me.
I can fill the room but I will vanish as soon as nobody creates me.
I transport energy but I am not sure if I am made of physical matter.
Nobody is faster than me but I cannot drive on regular streets.
I do not need anything to survi... |
I've been notably absent for some years now. So I thought it was about time to come back and mess with you a little. However, as soon as I entered PSE Deusovi put me in a prison cell! ... I know right? He's insane!
*The following image shows me in my prison cell. Don't go there if you can't take it...*
>! [</sup>
---
"Hey Pat, I got your latest tour brochure. It looks really fun; you know I love military history! But times are tough, and I did ask you for something from... |
My answer:
>! 225
---
My colouring a little 'boorish' you could say,
>! the color of rgb 225
With furrowed brows and a holey sign I am formed,
>! the number's shape.
My opposite North-eastern?! (I got the hint from this)
>! Northeast (NE), 45°'s opposite is 225°
I don't know about the first clue. |
Alice and Bob play the following game with two heaps of 10,000 and 20,000 marbles.
* Alice and Bob move alternatingly. Alice makes the first move.
* In every move, the active player may
(i) either remove ≥ 1 marbles from the first heap,
(ii) or remove ≥ 1 marbles from the second heap,
(iii) or remove ≥... |
Can you help me with this puzzle?
A person is trapped in a room that has 3 locked doors and there are three colored keys: red, yellow, and green. He was provided the following information:
- Each of the green and the yellow keys can unlock only one door, but the red key can be used to unlock two of the doors
- Onc... |
I've been notably absent for some years now. So I thought it was about time to come back and mess with you a little. However, as soon as I entered PSE Deusovi put me in a prison cell! ... I know right? He's insane!
*The following image shows me in my prison cell. Don't go there if you can't take it...*
>! [. Hope like this story. Here it is:
<hr>
John got the **target**, it was `Stack`. Problem is, it can be `Stack Overflow` or `Stack Exchange`.
Another problem is that it doesn't concern NSA.... |
This puzzle is the second part of story [Ohh, NSA again?](https://puzzling.stackexchange.com/questions/105998/ohh-nsa-again). Hope like this story. Here it is:
<hr>
John got the **target**, it was *Stack*. Problem is, it can be *Stack Overflow* or *Stack Exchange*.
Another problem is that it doesn't concern NSA.... |
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