Concentration is a classic memory game consisting of a set of cards that are arranged face down. Each card has a matching pair somewhere on the board. The objective of the game is to flip over two cards at a time to reveal the matching pairs, and then remove them from the board. The game is a fun way to test and improve memory skills, as players need to remember where each card is located. Concentration is an easy-to-learn game that can be enjoyed by players of all ages and is a great way to pass the time!