The article discusses how board games share common ideas like rules and controls. The researchers introduce the concept of game concepts to help understand board games better. They use the Ludii General Game System to describe concepts at different levels, like the game itself and the moves played. This new approach can help in creating advanced AI agents, transferring AI learning between games, and explaining AI techniques using game terms. It can also be used to reconstruct rules for ancient games and recommend board games to players.