Chess Tactics

Tactics are short sequences of moves that win material or force checkmate. Recognizing tactical patterns is the single most important skill for improving at chess. Each motif below links to its full guide with verified positions.

Forks

  • Fork - One piece attacks two or more enemy pieces at once. The opponent can only save one. Forks are the most common winning tactic at every level, and the knight is the piece that delivers them most often because its jump is so easy to miss.
  • Knight Fork - A knight attacks two or more pieces at once. Especially dangerous because knights jump over pieces, so the attack arrives from a square nobody was watching.
  • Pawn Fork - A pawn attacks two pieces diagonally. Effective because the pawn is the least valuable piece: the opponent cannot profitably capture it.
  • Royal Fork - A fork that attacks both the king and queen simultaneously. The king must step out of check, so the queen is lost.

Pins

  • Pin - A piece is attacked and cannot move, or should not move, because a more valuable piece sits behind it on the same line. Bishops, rooks and queens are the only pieces that can pin.
  • Absolute Pin - The piece is pinned to its king and cannot legally move at all. The pinned piece is frozen in place until the pin is broken.
  • Relative Pin - The piece is pinned to something more valuable than itself, such as a knight in front of the queen. It can legally move, but doing so loses material.

Skewers and X-Rays

  • Skewer - The reverse of a pin. A more valuable piece is attacked and forced to move, exposing a less valuable piece behind it. Checking a king to win the queen behind it is the classic example.
  • X-Ray Attack - A piece attacks or defends through another piece on the same line, so a square that looks covered by one piece is really covered by two.

Discovered Attacks

  • Discovered Attack - Moving one piece reveals an attack by another piece behind it. The moved piece can make its own threat at the same time, giving the opponent two problems to solve with one move.
  • Discovered Check - A discovered attack where the revealed attack is a check. The opponent must deal with the check, leaving the moved piece free to capture or threaten anything it likes.
  • Double Check - Both the moved piece and the revealed piece give check simultaneously. The king must move, because no single block or capture can answer two checks at once.

Removing Defenders

  • Removing the Defender - Capturing or driving away the piece that protects a key square or piece. Once the defender is gone, the target it was guarding falls.
  • Deflection - Forcing a defending piece away from its duty, for example by attacking the rook that guards the back rank so it has to abandon the mate square.
  • Overloading - One piece is asked to do two defensive jobs at once. Attack one of the things it protects and the other falls.

Sacrifices and Lures

  • Attraction - Luring an enemy piece, usually the king, onto a square where it becomes vulnerable to the next tactical blow. Most attraction tactics begin with a sacrifice.
  • Clearance - Moving one of your own pieces out of the way, sometimes giving it up, to open a line, file or diagonal for another piece.
  • The Greek Gift - The classic bishop sacrifice on h7 (Bxh7+) against a castled king, followed by a knight check and the queen joining the attack. Every attacking player learns to spot when it works.

Other Tactical Motifs

  • Trapped Piece - A piece has no safe squares and will be captured. Knights and bishops are trapped most often, usually after venturing too deep into enemy territory.
  • Interference - Placing a piece between two enemy pieces to cut the line that connects them, breaking a defense along a rank, file or diagonal.
  • Zwischenzug - An in-between move. Instead of the expected recapture, you play an intermediate move, often a check, that improves your position first.
  • Smothered Mate - A knight delivers checkmate to a king boxed in by its own pieces. The tactic that turns a fork, a pin and a queen sacrifice into a single forced sequence.

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