Chess Tactics

Fundamentals

Forks

Attacks multiple pieces simultaneously, forcing losses. chess.com/terms/fork-chess
- Knight: Jumps to hit unguarded targets.
- Pawn: Diagonal forks in endgames.
- Queen: Multi-directional but risky.

Pins

Immobilizes piece shielding higher value (e.g., king). chess.com/terms/pin-chess
- Absolute: To king; can't move.
- Relative: To queen/other; movable but costly.
- Exploit: Attack pinned piece repeatedly.

Skewers

Attacks valuable piece fronting lesser one. chess.com/terms/skewer-chess
- forces move, exposes rear.
- By queens/rooks/bishops on lines.

Discovered Attacks

Moving piece unveils attack from behind. chess.com/terms/discovered-attack-chess
- Potent with checks; double threats.
- Variants: Double discovered.

Decoys and Deflections

Decoy lures to bad square; deflection overloads. chess.com/terms/decoy-chess and chess.com/terms/deflection-chess
- Decoy: Sacrifice for position.
- Deflection: Force abandonment of duty.

Zwischenzug

Intermediate move disrupting sequence. chess.com/terms/zwischenzug-chess
- Often check before recapture.

Overloading

Piece defends too much; exploited. chess.com/terms/overloading-chess
- Attack one duty to collapse others.

Interference

Blocks enemy lines, disrupting coordination. chess.com/terms/interference-chess
- Sacrifice to sever paths.

Back-Rank Weakness

Exploits trapped king on rank 1/8. chess.com/terms/back-rank-mate-chess
- Rook/queen checks if pawns block escape.

Battery

Aligned pieces reinforce attack. chess.com/terms/battery-chess
- Queen behind rook, etc.

X-Ray Attacks

Indirect attack through pieces. chessfox.com/x-ray
- Long-range pressure.

Windmill

Repeated discovered checks, capturing. chess.com/terms/windmill-chess
- Rook-bishop combo.

Double Check

Two pieces check king simultaneously. chess.com/terms/double-check-chess
- Forces king move only.
- Aaron Nimzowitsch: "Even the laziest king flees wildly in the face of a double check."

Clearance Sacrifice

Sacs to vacate square for own piece. chess.com/lessons/champion-tactics-with-gm-wolff-clearance-sacrifice
- Opens lines/attacks.

Trapped Piece

Piece immobilized, capturable. chess.com/terms/trapped-piece-chess
- No safe moves.

Removal of the Defender

Captures guardian, exposes target. chess.com/terms/removing-the-defender-chess
- Quick collapses.

Promotion Tactics

Pawns advance to queen/other. chess.com/terms/pawn-promotion
- Underpromotion rare but key.

Decoy

Sacrifice lures enemy piece to vulnerable square. en.wikipedia.org/wiki/Decoy_(chess)
- Similar to decoy.
GM Example: Morphy vs. Duke of Brunswick, 1858 – Attracts king to mating net.

Desperado

Piece about to be captured sacs itself first. chess.com/terms/desperado-chess
- Minimizes loss.

Smothered Mate

Knight mates king surrounded by own pieces. chess.com/terms/smothered-mate
- Often queen sac draws knight in.

Greek Gift Sacrifice

Bishop sac on h7/h2 vs castled king. chess.com/terms/greek-gift-chess
- Opens h-file for attack.

Alekhine's Gun

Two rooks behind queen on file. chess.com/terms/alekhines-gun-chess
- Massive pressure.

Perpetual Check

Repeated checks for draw. chess.com/terms/perpetual-check-chess
- King can't escape.

Zugzwang

Any move worsens position. chess.com/terms/zugzwang-chess
- Often endgames.

En Passant Capture

Special pawn capture after two-square advance. chess.com/terms/en-passant
- Disrupts structures.

Attacking the Castled King

Sacs/pawn storms vs castled position. chess.com/blog/ChessPawn921/attacking-the-castled-king-same-side-castling-edition - Breaks defenses.

Simplification

Trading to winning endgame. chess.com/terms/simplification-chess
- Secures result.

Anastasia's Mate

Knight and rook/queen mate on edge. chess.com/terms/anastasias-mate-chess
- Knight blocks escapes; heavy piece attacks.

Cross-Check

Block check with own check. chess.com/terms/cross-check-chess
- Bc2 blocks and checks.

Double Attack

Multiple pieces attack targets. chess.com/terms/double-attack-chess

Hanging Piece

Undefended piece capturable. chess.com/terms/hanging-piece-chess
- Loose targets.

Opening Traps

https://www.chess.com/article/view/10-opening-traps-that-work - Noah's Ark - Legal's Mate - Cambridge Springs Trap - Lasker Trap - Rubinstein Trap - Siberian Trap - Fajarowicz Gambit - Blackburne Shilling Trap - Budapest Gambit Smothered Mate - Fishing Pole Trap