A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
For challenges related to the processing of text input.
This challenge is related to the C# language. Note that challenges that require the answers to be in a specific language are generally discouraged.
Challenges relating to producing an audible output or an audio file which could then be played. If a challenge relates to textual representation of sound, it may fit better in the [music] tag.
For challenges that involve error output, such as compiler/interpreter warnings or errors.
Challenges which relate to calculating some type of edit distance (such as Levenshtein distance), or where answers are expected to satisfy some property related to edit distance.
For challenges relating to approximating a value, typically a constant or something related to the program's input
Used for challenges that require user interaction during their runtime
Challenge related to the concept of trees present in graph theory.
For challenges related to programming or markup language syntax, including but not limited to checking syntax for validity, converting from one syntax to another or fixing invalid syntax. See also the…
For challenges involving a small number of words, usually related to word generation. Do not use for "Hello, World!"-like challenges.
For challenges that involve polyominoes of some sort. Polyominoes are shapes made of concatenating the edges of equally sized squares to create a form of square tiling. Tetris is a well known example …
For challenges related to topology the mathematical study of open sets.
Challenges related to the arrangement, layout, or formatting of monospace plain text.
This challenge is related to the Haskell language. Note that challenges that require the answers to be in a specific language are generally discouraged.
For challenges regarding fitting the most number of a certain shape into another shape, or for packing a number of a certain shape into the most compact form.
This challenge is about or related to encoding a plaintext, usually with one or more keys.
This challenge is related to the Brain-flak esoteric language and languages based on Brain-Flak. Note that challenges that require the answers to be in a specific language are generally discouraged.
Substitution is the act of replacing one part of a string with another.
For challenges asking participants to design a language or parts of a language, or tips questions about golfing language design.
Puzzles involving a word search - a word game that consists of the letters of words placed in a grid, which usually has a rectangular or square shape. Usually, the objective of this puzzle is to find…
Tasks involving writing compilers for various languages or formalisms.
For challenges related to the classic arcade game Tetris.
For challenges about matching a particular pattern or patterns.
indicates that a challenge is related to crossword puzzles.
A challenge where answers are scored on some metric of their output.
The puzzle or challenge involves repeated application of some transformation to the input. These puzzles often involve mathematical sequences or fractals.
For challenges about dominoes, the game pieces.
Sliding puzzles are combination puzzles that involve moving flat pieces around to achieve a target configuration. Examples are 15-game or 2048.
For challenges pertaining to Combinatory Logic model of computing.
Fewest operations measures the number of specified "operations" performed at run time, and not the amount of operations used in the source code.
For challenges pertaining to Lambda Calculus model of computing.
For challenges that require answers to perform network requests, etc.
Challenges related to number sequences with replacement of some exact multiples.
This challenge is related to the Lisp family of languages. Note that challenges that require the answers to be in a specific language are generally discouraged.
This challenge is related to APL (A Programming Language). Note that challenges that require the answers to be in a specific language are generally discouraged.