Game of skill

A game whose outcome is determined predominantly by players’ abilities rather than random events. The distinction from a game of chance is important in laws governing gambling.

Game of chance: A game whose outcomes depend substantially on random events rather than players’ abilities. It is the legal and conceptual opposite used to define games of skill.
Game theory: The mathematical study of strategic interaction among decision-makers. It models how choices by competing players affect outcomes in games of skill.
Gambling law: The body of law regulating wagering, betting, lotteries, and related activities. It uses the skill-versus-chance distinction to determine which activities require regulation.
Scrabble: A word game in which players place letter tiles on a board to score points. Vocabulary and strategy matter, while random tile draws introduce chance.
Gambling: Wagering money or something of value on an uncertain outcome. Whether a game is predominantly skill-based can determine whether wagers on it count as gambling.
Skill: The ability to perform tasks effectively through knowledge, practice, or aptitude. A player’s skill is the defining source of advantage in this kind of game.
United States gambling law: Federal and state laws governing gambling in the United States. U.S. jurisdictions apply differing tests to decide whether games are predominantly skill-based.
Backgammon: A board game in which players race checkers according to dice rolls and strategic moves. Its dice and strategic choices make it a classic example of a mixed skill-and-chance game.
Poker: A family of card games in which players wager on hands ranked by fixed rules. Its mix of strategic decisions and random card draws makes it a prominent classification dispute.
Randomness: The lack of a predictable pattern in an outcome or process. Randomness is the competing influence that legal tests weigh against player skill.

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Illegal gamblingCompared with: The legal boundary between gambling and skill-based play can determine whether an activity is prohibited.