The most important piece on the board is the King. The king can move any side one square(left, right, forward, backward, and diagonally).
King (K)
![](https://giraffechess.com/wp-content/uploads/2019/01/king.png)
The most important piece on the board is the King. The king can move any side one square(left, right, forward, backward, and diagonally).