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A tag for puzzles dependent upon some degree of computer literacy - for instance, requiring basic familiarity with operating system usage, encryption or programming.

-3
votes
1answer
65 views

You see me right now… but you can't

Look over here! Oh... that's right. I'm too small to be seen. But you are still looking at me. Crazy! I know right? Here, how about this? You guess what I am! Okay. Well if I get too much ...
8
votes
2answers
239 views

Ornithogenic Turnover

Peptiberg: Hello, friend. Why do you look so pleased? Tippgeber: My friend just had a change of profession - from a divisive one to a constructive one. Peptiberg: Was it a smooth transition? ...
27
votes
3answers
1k views

Mysterious Flash Drive

First puzzle I ever do! Hopefully it won't be too easy or too challenging. My co-worker just gave me a USB flash drive, which was supposed to contain a couple files of code for me to review. ...
8
votes
2answers
312 views

The “foo” encoding

This puzzle has been solved. Please skip to the bottom of this question for the answer. Introducing the mysterious foo encoding... based on the common computer programming template variables ...
4
votes
1answer
146 views

What does one do to decrypt this?

'Encrypted': 10101110001011101000000001110111000101011100011101110000000011101110100010111000111010111011100 Context: This is simpler than you think. So simple the solution to this problem would be ...
8
votes
1answer
190 views

Once again, another Linux movie quote!

Because I can't get off this linux movie quote train, here is another one! Can you find the famous movie quote hidden in this linux block? ...
12
votes
2answers
1k views

Yet another movie line on the Linux terminal

What famous quote does the following terminal session refer to? $ ps -o ppid= -p $u 28342 $ echo $$ 28342
11
votes
3answers
5k views

My co-workers left me a message

While refactoring a massive chunk of old code, I found a rather curious section of code commented out that wasn't there the day before. Can you tell me what it means? ...
6
votes
6answers
694 views

Why did the function not run in the marathon? [closed]

Please help me with this, I'm not sure what tags to use. It also has a somewhat programming background. Question: Why did the function not run in the marathon?
9
votes
1answer
472 views

Yet another movie quote hidden in Linux

Inspired by this question and this question, can you guess the famous movie quote hidden in this Linux block? ...
13
votes
1answer
1k views

Another Linux movie command

Inspired by this question, here's another Linux command representing a famous line: cp -a ~she ~ Which line is it?
34
votes
1answer
4k views

Chuck Norris vs. This Question

public var c: = Infinity; public var w:Array = [,<...
2
votes
3answers
235 views

Coding puzzles with pen and paper

At work we are doing a coding competition on hackerrank – it is real coding – you are given input and you have to code a program that produces the correct output. Now, I would like to promote this ...
2
votes
1answer
118 views

Where is my brother?

Couple days ago, my brother went missing. It seems like he's ran away from home. I decided to search his computer, to see if there are any clues to where he might have gone. All I've found was this ...
11
votes
3answers
2k views

A Programmers Riddle

A programmer friend left me a riddle: ...
2
votes
1answer
119 views

Breaking into your friend's computer

You're trying to break into your friends laptop. However, his computer is password protected. Luckily he has a password hint on his computer. The password you are looking forˏ is not easy like ...
4
votes
1answer
123 views

Where is my coworker from? [duplicate]

My new coworker sent me some code. He wants me to figure out where he was born. I believe there are some hints within the code, but I cannot figure it out. Here is the code block: ...
1
vote
3answers
136 views

Looking for a place

Seems overwhelming but pretty simple. clue.txt http://junewi.000webhostapp.com/testing/clue.txt tdHCR6ieFHNqUv1zQHE0KRiAfypNTApKi2xlN4CMYK2beP3M1u2mgUvRvDmx0M8heyKebUVEsGcbHrnymUIeviUN/...
9
votes
1answer
331 views

First Cryptography Puzzle

When adam and eve sinned, apple was the key. Lies of the Serpent, they both believed. Alternate: 56 108 87 97 119 53 97 43 57 49 68 105 66 51 121 115 84 54 120 51 81 65 61 61 I'm looking for just ...
4
votes
3answers
192 views

Critters Ate My Clue

I recently visited a rummage sale at my local community college, which was trying to get rid of a ton of old and outdated equipment in storage to make way for a new Makerspace. As I browsed through ...
1
vote
0answers
83 views

Honda tutu del moto - Words which say something

You find a paper lying on the sand. Does it mean something ... an imgur maze, maybe ? Cultures reserve glasses. Twin economists migrates with tails in a fine risk. Conglomerate ... voo dun saga ...
6
votes
2answers
163 views

Mathematical formulation for Dr. Eureka

I have to prepare an algorithm to solve the puzzle part of Dr. Eureka, a multiplayer game from Blue Orange Games. This is part of a research project that also involves computer vision and robotics. ...
6
votes
1answer
293 views

Base what? Oh, great, now I need magic

This cipher's too hard to solve by itself. This short riddle provides sufficient help. You must consult the fifth man; He'll lend a hand, And less information quite appropriate. <...
5
votes
1answer
204 views

How to choose the next board in the 8-puzzle?

I hope to have your help to solve the problem I am facing. I'm trying to make an 8-puzzle solver but I'm in doubt about how to select the next board, from the one they have already given me. Below I ...
12
votes
4answers
3k views

A dice game, what is the optimal strategy?

Alice was walking on the street when she came across a man playing with a die. She could not help trying to check if the die was loaded and while she was concluding that it wasn't loaded, the man ...
20
votes
1answer
731 views

Code Movie Wall

An entry in Fortnightly Topic Challenge #36: Twisted Classics 1 I'm thinking of a movie. The Connecting Wall below (click it for a bigger version) should have made guessing the movie really simple, ...
5
votes
2answers
220 views

Tiling rectangles with Heptomino plus rectangle #6

Inspired by Polyomino T hexomino and rectangle packing into rectangle See also series Tiling rectangles with F pentomino plus rectangles and Tiling rectangles with Hexomino plus rectangle #1 ...
3
votes
2answers
129 views

Tiling rectangles with Hexomino plus rectangle #3

Inspired by Polyomino T hexomino and rectangle packing into rectangle See also series Tiling rectangles with F pentomino plus rectangles and Tiling rectangles with Hexomino plus rectangle #1 ...
3
votes
2answers
116 views

Tiling rectangles with Heptomino plus rectangle #4

Inspired by Polyomino T hexomino and rectangle packing into rectangle See also series Tiling rectangles with F pentomino plus rectangles and Tiling rectangles with Hexomino plus rectangle #1 ...
2
votes
1answer
117 views

Tiling rectangles with Heptomino plus rectangle #3

Inspired by Polyomino T hexomino and rectangle packing into rectangle See also series Tiling rectangles with F pentomino plus rectangles and Tiling rectangles with Hexomino plus rectangle #1 Next ...
12
votes
2answers
1k views

Tricky wild goose-chase puzzle

Your obnoxious little brother loves to outwit you. He asks you to find the message hidden in the following image You are determined and ready to teach your brother a lesson. But can you ?
26
votes
1answer
985 views

Self-Description

Part of the Fortnightly Topic Challenge #35: Restricted Title 1 This text has ? l's and ? n's, but its ?th most frequent letter is f. This text also has ? letters that are used ? times or less. Its ...
5
votes
1answer
210 views

Tiling rectangles with Hexomino plus rectangle #1

Inspired by Polyomino T hexomino and rectangle packing into rectangle See also series Tiling rectangles with F pentomino plus rectangles and Tiling rectangles with Hexomino plus rectangle #1 Next ...
12
votes
1answer
385 views

Computational Linguists

An entry in Fortnightly Topic Challenge #35: Restricted Title 1.Computational Linguists In order to help me boost my paltry grades, the professor of my computer class has given me an extra credit ...
6
votes
0answers
175 views

Generating different difficulties in custom puzzle

first of all this is my first time asking something here so please let me know if I am doing something wrong or asking it on the wrong place. I have a custom puzzle model where I need to generate ...
51
votes
3answers
3k views

Regular Expressions

...
-7
votes
3answers
196 views

Function that returns 1 for all numbers equal to or above 1 [closed]

What's a function (intended to use in a Python program) that returns 1 for all numbers that are >= 1 and ...
9
votes
6answers
1k views

Optimizing month abbreviation to number

(This comes from a real-world requirement.) The idea is easy - if you have the three-letter abbreviated name of a month, say "Jan", get the numeric month number (for "Jan", 1). Sure, sure, pick a ...
33
votes
25answers
8k views

I shouldn't have asked him

My roommate (rm) always looks busy in front of his laptop, so I try to start talking to him Me : "Hey, You always look busy, so how do you entertain yourself? Do you have a favorite book, movie, ...
7
votes
1answer
519 views

How to test for logic operator precedence

While coding in Python, I realized I couldn't remember which is evaluated first: and (the logical conjunctive operator), or (...
5
votes
2answers
183 views

20 right isosceles triangles into a square

Similar: Unlucky tiling: Arrange thirteen right isosceles triangles into a square Five graded difficulty isosceles right triangle into square tilings Two difficult "Seventeen right isosceles ...
10
votes
1answer
675 views

“I like things done once”

You disable the security shields. Dr P releases his minions. Suddenly you hear the red siren. 'Code-Red' says the computer. You smell smoke. You see the background a blur and noises in the air. ...
2
votes
2answers
131 views

Two difficult “Seventeen right isosceles triangles into a square” tilings

Similar to: Unlucky tiling: Arrange thirteen right isosceles triangles into a square Five graded difficulty isosceles right triangle into square tilings V.hard problem, 20 right isosceles triangles ...
5
votes
2answers
179 views

Five graded difficulty isosceles right triangle into square tilings

Similar to: Unlucky tiling: Arrange thirteen right isosceles triangles into a square Two difficult "Seventeen right isosceles triangles into a square" tilings V.hard problem, 20 right ...
22
votes
2answers
645 views

A Racing Heart!

This puzzle is about an athletic, hearty person. Therefore, there are 3 pieces of information hidden accordingly: For each clue, including trailing remarks such as "(2 words)", remove all numbers, ...
12
votes
2answers
240 views

Unlucky tiling: Arrange thirteen right isosceles triangles into a square

Link to next puzzle in this series:Five graded difficulty isosceles right triangle into square tilings Two difficult "Seventeen right isosceles triangles into a square" tilings V.hard ...
13
votes
4answers
2k views

What is the password in the image?

For my first puzzle I made this, everything you need is in the image. The goal is the find the hidden password. You must look at the image to solve this puzzle, but here's a transcript of the letters ...
6
votes
3answers
249 views

Tiling rectangles with X pentomino plus rectangles

Inspired by Polyomino Z pentomino and rectangle packing into rectangle Also in this series: Tiling rectangles with F pentomino plus rectangles Tiling rectangles with N pentomino plus rectangles ...
6
votes
2answers
227 views

Tiling rectangles with V pentomino plus rectangles

Inspired by Polyomino Z pentomino and rectangle packing into rectangle Also in this series: Tiling rectangles with F pentomino plus rectangles Tiling rectangles with N pentomino plus rectangles ...
3
votes
3answers
177 views

Tiling rectangles with U pentomino plus rectangles

Inspired by Polyomino Z pentomino and rectangle packing into rectangle Also in this series: Tiling rectangles with F pentomino plus rectangles Tiling rectangles with N pentomino plus rectangles ...