What Is Attraction in Chess (And How It Differs From a Decoy)

Some tactics lure a piece somewhere it shouldn't go. Attraction does that too, but with a narrower, more ruthless target: the king. Instead of tricking any old piece onto a bad square, attraction forces the king itself onto a square where the rest of your army is waiting to strike through it.

What attraction actually is

Attraction is a sacrifice or forcing check that drags the enemy king onto a specific square or file — one it has no real choice about entering — so that a follow-up tactic, almost always a discovered attack or discovered check, can land once it's there.

The king isn't a bystander like a rook or knight might be in other tactics. It's a piece that must respond to check, and that obligation is exactly what attraction exploits. You're not hoping the king wanders into danger. You're giving it one legal move, and that move is the trap.

The classic shape

A bishop or rook sacrifices itself with check, the king captures because there's nothing better to do, and the instant it lands on that square, a piece you had lined up behind the sacrificed one — a queen, a rook, another bishop — delivers a discovered check or wins material outright through the newly opened line.

The sacrifice itself is rarely the point. It's cheap, sometimes even a pawn. What matters is the square it forces the king onto, because that square sits on a rank, file, or diagonal you already control one move away from being revealed.

Attraction vs. decoy: where the line actually is

These two look alike because both involve baiting a piece onto a square you've chosen in advance. The difference is who gets lured and why they have to go.

A decoy works on any piece, and it works because the bait is something the opponent wants — a free queen, an undefended rook, a capture that looks completely safe. The opponent walks into it out of greed or a lack of better options.

Attraction works almost exclusively on the king, and it works because the king has no choice at all. Check isn't optional. If capturing or blocking on a specific square is the only legal response, you don't need the move to look tempting — you just need it to be forced. That's a meaningfully different kind of trap: decoy persuades, attraction compels.

Why it's so easy to walk into

Attraction is dangerous precisely because the losing side feels like they're following the rules, not making a mistake. Responding to check isn't a choice you weigh — it's the move the position demands. Nobody double-checks a forced recapture the way they'd double-check a greedy one.

That's also why attraction so often sets up discovered check rather than an ordinary discovered attack. Once the king is pinned to that square by its own forced move, it can't simply step away from whatever gets revealed next. The sacrifice bought exactly one square, and that square turns out to be the only one where the rest of your pieces can hit two targets at once.

How to spot it before you give up the material

Before you play a sacrifice "just to see what happens," work backward from the square it forces the king onto. Ask what's sitting behind the piece you're giving up — is there a queen, rook, or bishop that only needs that square cleared to attack through it? If the king's single legal reply drops it onto a rank or diagonal you already occupy one square further back, you're not sacrificing material. You're buying a square, and the king is required to stand on it.

The habit that makes this easier to find: when you see a check that the opponent must answer with the king (not a block, not a capture by another piece), stop and look at every line that passes through the square the king is forced to land on. If one of your long-range pieces is already aimed down that line, the attraction is sitting right there waiting to be played.

Ready to put this into practice?