What is tie in chess tournaments and its happen?

In Chess tournaments, a tie occurs when two or more players finish with the same score, typically based on the number of points earned from wins and draws. This situation can arise in round-robin formats or Swiss-system tournaments, where players compete against each other over several rounds. To break ties, organizers often use tiebreak criteria such as head-to-head results, Sonneborn-Berger score, or playoff matches, depending on the tournament rules. Ties highlight the competitive balance among players and can add excitement to the final standings.