89 questions linked to/from Golf you a quine for great good!
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### Source code GO!

Let's use augmented reality to hunt small creatures hidden in source-code. Write a quine program that outputs its own code source, except for 5 consecutive characters that will be modified and that ...
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### A Fragile Quine

A Fragile Quine A fragile quine is a quine that satisfies the property of having each substring made by removing a single character, when evaluated, produces an error. For example. If your program <...
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### Tips for golfing in 2D languages

What general tips do you have for golfing in 2 dimensional programming languages? I'm looking for tips which can be applied to code-golf problems and are specific to 2D programming languages, but not ...
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### Tips for golfing in QBasic

What general tips do you have for golfing in QBasic? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to QBasic (e.g. "remove comments" is ...
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### Is it a substring of itself?

Given a string, return whether the string is a substring of the program's source code. Standard quine rules apply, meaning you cannot read your own source code. The length of the input is guaranteed ...
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### Q​u​i​n​e R​e​l​a​y​!

Quine Relay! A quine relay of order $n$ is a series of programs $P_1\dots P_n$ in distinct languages such that each program $P_i$ outputs $P_{i+1}$ and $P_n$ outputs $P_1$. For example, ...
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### Double-duty quine: quine!dlroW ,olleH

Write a program that will output its own source code when run, and nothing else. Seems easy, right? The catch is that when the source code is reversed, your program must output "Hello, World!" ...
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### Print a quine that contains the input

Task You will be given a string in the input consisting only of the characters from a to z, i.e. the input will match the regex ...
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Intro Reverse and add is as simple as it sounds, take n and add it to its digits in reverse order. (e.g. 234 + 432 = 666). If you apply this process repeatedly ...
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### The meta-polyglot quine

In my time on PPCG, I've noticed that quine problems and polyglot problems are quite popular. Also, meta-solutions to problems, that is, scripts which generate a program which is the solution to a ...
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### Fastest Mini-Flak Quine

Mini-Flak is a subset of the Brain-Flak language, where the <>, <...> and [] ...
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### Quine outputs itself in binary

Your task, if you wish to accept it, is to write a program that outputs its own source code in the binary UTF-8 representation. Rules The source must be at least 1 byte long. Your program must not ...
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