what happens when you forget to say check in chess
Check (chess) 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).
Chinese checkers Chinese checkers (US and Canadian spelling) or Chinese chequers (UK spelling)[1] is a strategy board game of German origin (named "Sternhalma") which can be played by two, three, four, or six people, playing individually or with partners.[2] The game is a modern and simplified variation of the American game Halma.[3]