Basic Opposition

When kings face each other with one square between them, the side not to move often has the stronger seat.

Why This Matters

Opposition is a king-versus-king idea: the kings face each other with one square between them.
Whoever must move may lose ground, because kings cannot step next to each other.
This simple idea is the heart of many pawn endings and also helps rook mates work.

Recognize direct opposition on a file or rank, and know that diagonal opposition is a related but distinct idea.
Use a king move to take opposition when the kings are close.
Explain why the side to move can be the side that has to give way.

Step 0 of 7

Try to play move 1:(Expected idea from lesson line)

Find the move yourself — the answer stays hidden until you solve it or reveal it.

Practice 1 of 3

Take opposition on the same file and keep it after Black moves.

Practice 2 of 3

Use the same idea when the kings are more sideways than straight on.

Practice 3 of 3

Play three king moves and finish with direct opposition again.

Play king versus king. On every move, say whether you are taking opposition, keeping opposition, or giving it away.

Print one board per step to review the full sequence offline.