In chess, when a pawn reaches the opposite side of the board, it can be promoted to any piece, except for a king, based on the players preference. This is known as pawn promotion. The most common and powerful choice is promoting the pawn to a queen, as it grants a formidable piece capable of dominating the board in both offense and defense. However, there are other intriguing options to consider, such as promoting the pawn to a bishop, rook, or knight. There are no restrictions to how many pieces of a given type you can have via promotion.