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Fork

Tactics

Photo : Praveen Thirumurugan
Tactics

A fork is a chess tactic in which a single piece attacks two or more enemy pieces at the same time, forcing the opponent to give up at least one of them.

It is one of the most common tactics at every level of play. For example, a knight on e5 can simultaneously attack an enemy queen on c6 and a rook on g4: the opponent can only save one piece, allowing the player to win material. Any piece can execute a fork — the knight is the most dangerous practitioner, because its L-shaped movement is notoriously hard to anticipate.

In practice, before playing a move, check whether your piece can land on a square where it attacks two targets at once. Look for unprotected or high-value enemy pieces: these make the best fork targets.

How to exploit it — and defend against it

To execute a fork, first identify two valuable enemy pieces that your piece can attack from the same square. If that ideal square is defended, a preliminary sacrifice may clear the way. To protect yourself against forks, avoid leaving two important pieces on squares reachable in a single enemy move, and always watch for potential knight attacks on your king and queen.

Your turn to play

Find the best move in this real position.

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Real examples

Positions drawn from real games (anonymised) where this motif occurred.

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Fork: Qc2 — the queen on c2 attacks a rook (d1) and a bishop (b2) at once. Line: Qc2 Re1 Qxb2 Qc6.

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Fork: Qd5+ — the queen on d5 attacks the king (g8), a knight (c6) and a bishop (c5) at once. Line: Qd5+ Be6 Qxe6+ Qf7.

Learn more

Related terms

Frequently asked questions

Which piece is best at executing a fork in chess?
The knight is the most effective piece for executing a fork, because its L-shaped movement lets it attack squares of different colors and is difficult to predict. However, every piece — pawn, bishop, rook, queen, and even the king — can deliver a fork.
How do I avoid getting forked by a knight?
Avoid leaving your king and queen (or two valuable pieces) on squares a knight can reach in one move. Identify squares where an enemy knight could land and make sure they are controlled or defended.
Can a pawn execute a fork?
Yes, a pawn can execute a fork by advancing to a square where it attacks two enemy pieces diagonally. This is a common tactic in the center, especially when a pawn simultaneously threatens a knight and a bishop.

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