Casual x Rated ?

Hi, everybody! I've read the Frequently Asked Questions and couldn't find the answer: what's the difference between Casual and Rated games?

Oh, it's very simple: rating games affect the rating, casual games do not.

Wow, what a 1970s thread title!

A chess rating system is a system used in chess to estimate the strength of a player, based on their performance versus other players. They are used by organizations such as FIDE, the US Chess Federation (USCF or US Chess), International Correspondence Chess Federation, and the English Chess Federation. Most of the systems are used to recalculate ratings after a tournament or match but some are used to recalculate ratings after individual games. Popular online chess sites such as chess.com, Lichess, and Internet Chess Club also implement rating systems. In almost all systems, a higher number indicates a stronger player. In general, players' ratings go up if they perform better than expected and down if they perform worse than expected. The magnitude of the change depends on the rating of their opponents. The Elo rating system is currently the most widely used.

Rated Games: It affects your rating. You win your rating go up, lose rating goes down or up/down for draws.(draw against highed rated opponent-rating increase slightly, against lower rated rating decreases slightly)

Casual games: Unrated games which doesnt affect your rating. Most tournaments on lichess are rated and most challenges are rated(its written in game info)

on rating: youtu.be/AsYfbmp0To0

chess resource for beginner(check full playlist): youtu.be/GQvR_fLkNKo

@jorgemarmion I must computer games are usually unrated/casual