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.

A puzzle relating to physical equations or physical principles such as energy, entropy, and classical/quantum mechanics. General physics questions are off-topic here but can usually be asked at Physic…
Puzzles that involve strategic decision making, usually involving either competitive or cooperative choices between a number of participants.
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physically made and have some sort of mechanism for turning or moving them, such as Rubik's Cubes or trick boxes.
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A puzzle related to magic squares: grids of integers where all rows, columns, and diagonals have the same sum.
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A geometric puzzle centered around geometric figures formed from unit-squares.
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A puzzle from 2-dimensional or 3-dimensional geometry centered around matchsticks.
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primarily built around a well-known book, novel, drama, poem, or a well-known author.
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For puzzles centered around playing cards. For questions about card games themselves, visit our sister site Board & Card Games Stack Exchange.
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Puzzles tagged with word-search should generally be about finding words within a grid, these types of puzzles are mass-producible so adding a twist or spin to them is a good idea.
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a technique employed to determine which events occurred leading up to a given situation.
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Nonograms (also known as *Hanjie* or *Japanese Puzzle*) are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a hidden…
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A question about how a puzzle can be solved.
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A puzzle involving a set of words which must be divided into groups such that the words in each group share some connection.
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A puzzle that requires an example to be built that fits certain criteria.
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A puzzle related to the main concepts of computer science, like algorithmics or information theory.
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For puzzles involving any form of dice.
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a puzzle composed out of the solutions to other mostly disjoint puzzles.
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told different pieces of information, and the reader must figure out something based on their words and actions.
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for questions where the answerer must identify a puzzle type based on deliberately limited information about its nature, such as notes made in the course of solving it. For questions where…
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A question relating to interpretation of clues in a crossword puzzle, or to generation of clues in a crossword puzzle. Use [cryptic-clues] for clues obeying the conventions of cryptic crosswords, [cro…
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A puzzle on a discrete system where one has to decide whether a certain system state can be reached through a finite number of steps.
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A puzzle in which certain letters, e.g. of each word, line, or paragraph, form a meaningful word or words when put together.
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A mathematical puzzle about the manipulation and solution of equations.
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For puzzles that contain an element of humour or wit. Please do not use this tag to post simple jokes which are not puzzles, and remember that questions should be uniquely answerable.
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Puzzles that use number properties such as even and odd, multiples of numbers, part of a well-known sequence (i.e. Fibonacci) or theorem (Pythagorean relations) or others in part of the method to solv…
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a puzzle which involves sliding blocks into a desired end configuration.
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a square grid of letters in which every row and column of forms a word. They can be clued just like normal crossword puzzles.
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A puzzle related to sports competitions, sports tables, sports records, or history of sports.
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For puzzles on spotting an odd-one-out item in a list.
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a 5-line poem with a strict AABBA rhyme scheme, often with five-line anapestic meter, sometimes obscene with humorous intent.
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In a treasure hunt, one or more players try to find hidden articles, locations or places by using a series of clues.
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A word ladder puzzle has a source word and a target word, and to solve the puzzle you must find a chain of words to link the two.
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For puzzles related to or involving animals. This tag is not to be used for questions about animals.
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A puzzle pertaining to topics associated with space like astronomy, space travel, and cosmology.
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Cooperative games where a team of players must try to guess the color of their hat, but can only see their teammates' hats.
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A puzzle that makes use of chemical knowledge, such as the names and atomic numbers of chemical elements.
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