Double Attack
A double attack is any single move that creates two separate threats at once. That's a much wider net than it sounds — a fork is a double attack, a discovered attack is a double attack, even a check combined with an attack on a piece counts. This page is about the general skill of noticing when a move does two jobs, rather than any one specific shape of pieces.
Why this is broader than a fork
A fork specifically means one piece attacking two enemy pieces at the same time, usually in the dramatic, geometry-driven way a knight does it. Double attack doesn't require that at all. The two threats can come from completely different mechanisms — one piece attacking a hanging pawn while a completely separate, pre-existing threat (a mating idea, a pending promotion, a pin that's about to be exploited) becomes relevant because of the same move. The common thread isn't the shape of the attack; it's that the opponent only gets one move to answer two problems.
Starting position. One queen move attacking two undefended pawns on an open rank (illustrative position, not from a recorded game).
A queen move down an open rank attacks two pawns at once — the same underlying idea as a fork, built from a straight line instead of a knight's jump.
The habit of scanning quiet moves, not just tactical ones
Because double attack covers so much ground, the most useful habit isn't memorizing shapes — it's a question to ask before playing any move that looks routine: does this move happen to create a second problem for the opponent beyond the obvious one? A developing move, a pawn push, or a piece simply repositioning can turn out to be a double attack purely by coincidence of where the lines on the board happen to cross, and those are exactly the ones that get missed, because nobody was looking for a tactic on a move that didn't start out looking tactical.
What makes a double attack actually work
Both threats have to be real, and the opponent has to be unable to answer both with the same move. If one of the "two" threats can be neutralized by the exact same defensive move that handles the other, it isn't a genuine double attack — it's one threat that happens to look like two. Before counting on the tactic, verify that no single reply exists that covers both problems at once; this is the step that separates a real double attack from a move that merely looks busy.
Every other tactic here is a flavor of this one
- A fork is a double attack where one piece directly attacks two enemy pieces.
- A discovered attack is a double attack where one piece's move reveals a second piece's threat.
- A skewer is a double attack where the front piece is forced to move, exposing the piece behind it.
- A zwischenzug often works by turning an ordinary reply into a double attack — answering a threat while creating a new one of your own.
For the specific, most dramatic version of this idea — one piece hitting two enemy pieces directly, most famously with a knight — see fork, which this page deliberately doesn't repeat in depth.
Frequently Asked Questions
If double attack includes forks and discovered attacks, why does this site have separate pages for them?
Because each specific shape has its own recognition cues, its own common mistakes, and its own defensive answers that are worth studying on their own terms. This page exists to name the shared idea underneath all of them, not to replace the more specific pages.
Can a double attack combine two threats of completely different types?
Yes, and those are often the hardest ones to spot — a move that attacks a piece while also opening a path toward checkmate, or one that wins a pawn while also setting up a pawn promotion elsewhere, mixes a material threat with a positional or mating one. The defender has to correctly weigh two very different kinds of danger against each other, not just choose which piece to save.
Is a double attack always worth more than a single attack?
Not automatically — if both threatened targets are minor and the opponent can simply give up the less valuable one without real consequence, a double attack might only win a small amount of material. The value of a double attack comes from the opponent genuinely being unable to save both things that matter, not from the label itself.