In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: In friendly games, the checking player customarily says ''check'' when making a checking move. Announcing ''check'' is not required under the rules of chess and it is usually not done in formal games. Until the early 20th century a player was expected to announce ''check'', and some sources of rules even required it (Hooper & Whyld 1992:74).
question: do you need to say check in chess?
No