What Is a Decoy in Chess?
A decoy lures an enemy piece — often the king — to a square where it can be attacked, forked, or mated. It's a tactical device that forces the opponent's piece somewhere it doesn't want to go.
How decoys work
A decoy usually comes as a sacrifice: you offer material that the opponent is more or less forced to accept, because the alternative is worse. Once the enemy piece takes the bait and lands on the target square, a follow-up move — a fork, a discovered check, or a mating net — punishes it for being there.
Decoying the king
The most dramatic decoys drag the enemy king out of safety. A well-known pattern is sacrificing a queen or rook on a square the king must capture, only for the king to walk into a fork or checkmate a move or two later. These combinations often look like the attacker is giving away material, when in fact they're setting a trap.
Decoys beyond the king
Decoys aren't limited to kings — any defender can be lured away from its job. Forcing a rook to capture on a specific square, for instance, can pull it off a file it was guarding, letting another piece invade. Recognising when a 'free' piece is actually bait is a key defensive skill too.
Frequently asked questions
Is a decoy always a sacrifice?
Usually, yes — decoys typically involve giving up material to force the enemy piece onto the target square, with the tactical payoff coming right after.
How is a decoy different from a deflection?
A decoy lures a piece TO a specific square where it becomes vulnerable. A deflection pulls a piece AWAY from a square it's defending. They're closely related but aim at opposite goals.
Why do decoys often target the king?
Because forcing the king to a specific square is especially powerful — once it's there, checks and forks can end the game outright rather than just winning material.