Sequence is a classic strategy board game where players form lines of five of their colored chips on the game board by playing cards from their hands that match the cards on the board. The goal is to get two lines in a two-player game or one line in a three-player/team game, using strategy to block opponents and leverage wild Jacks (two-eyed Jacks) to place chips anywhere or use one-eyed Jacks to remove opponents' chips.