Worksheet: Basic Opposition
Topic: endgame | Level: 3
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.
Practice Tasks
- Draw two kings in direct opposition and label the square between them.
- Why can the side to move be the side with the problem in king endings?
- Solve the practice positions and write where the kings stand at the end of each line.
Board Evolution (One Step per Board)
Step 0: Starting Position
Practice Positions
Find each move on paper, then check the Answer Key at the end.
Practice 1
Take opposition on the same file and keep it after Black moves.
Practice 2
Use the same idea when the kings are more sideways than straight on.
Practice 3
Play three king moves and finish with direct opposition again.
Mini-Game
Play king versus king. On every move, say whether you are taking opposition, keeping opposition, or giving it away.
Answer Key
- The kings should face each other with exactly one square between them.
- Because the side to move may have to step aside first and allow the other king to enter.
- Each practice line ends with direct opposition on the e-file.
Practice Position Solutions
- Practice 1: Kd3 Ke5 Ke3 — White steps in front, Black slides, and White slides too. The kings finish with one square between them on the e-file.
- Practice 2: Kd2 Ke4 Ke2 — White walks into the right line, Black replies, and White keeps the direct opposition on the e-file.
- Practice 3: Kd4 Ke6 Ke4 — White moves into line with the black king and ends with one square between the kings on the e-file.