Pawns, Bishops, and Knights are pieces in the game of chess. Pawns are the smallest pieces on the board, typically represented by a small, cylindrical object, and are used for a variety of purposes such as defending your own pieces, blocking your opponent, or capturing enemy pieces. Bishops are typically represented by tall, thin pieces and can move diagonally along the board, while Knights have a distinctive L-shape and can jump over other pieces. Each piece has its own unique set of abilities and strengths, making chess a strategic and challenging game.