What is a 'king' in Checkers?

In Checkers, a "king" is a term used to describe a regular checker piece that has reached the opponent's back row, also known as the "king's row." When a player successfully advances one of their pieces to the farthest row of the board closest to their opponent, it gets promoted to a king. Kings are distinguished by stacking an additional checker of the same color on top. An important feature of kings is their enhanced movement abilities. Unlike regular pieces that can only move diagonally forward, kings can move both forward and backward diagonally on the board. This added flexibility makes kings more powerful and strategically advantageous, as they can swiftly navigate the gameplay and capture opponent pieces in various directions.