One of the fundamental principles of kings and pawns endings is opposition. You can see in the following diagrams that the kings are face to face in the same column, separated by an odd number of boxes. The opposition wins the side that does not correspond to play, or what is the same, whoever plays loses the opposition.
The opposition also applies to kings facing in rows or diagonals, and the general peculiarity is that they must always be separated by an odd number of squares.
In the next article we will explain how to use the opposition in the different pawn endings.
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