A skewer attacks a valuable piece that must move out of the way, exposing a less valuable piece behind it to be captured.
Follow the lesson one board at a time. The teacher answer key includes the move list.
Solve each position on paper first. Answers live only in the separate teacher/parent key.
White to move. Check the king, then win the piece behind it.
White to move. Check the king, then win the piece behind it.
White to move. Check the king, then win the piece behind it.
Play this position with a partner. Look for any check that would force the king to move and expose another piece behind it - that is a skewer.
Teacher/parent key for Worksheet: Skewers.
Prompt: Explain the difference between a pin and a skewer.
In a pin the less valuable piece is in front; in a skewer the more valuable piece is in front and forced to move.
Prompt: In the mini-game position, is there a piece lined up behind the black king on a file, rank, or diagonal?
Answers will vary based on the position reached.
Prompt: Solve the 3 skewer puzzles and write down the forced reply move for each.
See practice positions above for each puzzle's forced reply and follow-up capture.
White to move. Check the king, then win the piece behind it.
Solution: Ra8+ Ke7 Rxh8
Ra8+ checks the king on the back rank. The pawns on d7 and f7 block every other escape square, so Ke7 is forced. Once the king steps off the 8th rank, the rook captures the queen on h8 — a skewer.
White to move. Check the king, then win the piece behind it.
Solution: Ra8+ Ke7 Rxg8
Ra8+ checks the king along the 8th rank. With d7 and f7 blocked by pawns, Ke7 is the only legal reply. That clears the rank so the rook can capture the rook on g8 next move.
White to move. Check the king, then win the piece behind it.
Solution: Qa8+ Ke7 Qxh8
Qa8+ checks the king along the back rank, and the pawns on d7/f7 leave Ke7 as the only escape. Once the king steps aside, the queen captures the bishop on h8 — the same skewer idea, with a queen instead of a rook.