The King's Gambit trap: why fxe5 loses to ...Qh4+

The King's Gambit, 1.e4 e5 2.f4, moves the pawn that was shielding White's king, so the diagonal from h4 to e1 is open. When Black declines the pawn, the natural capture on e5 can lose on the spot: ...Qh4+ checks, and if White blocks with g3, ...Qxe4+ checks again and takes the rook on h1 next.

The line

The trap comes in three ways. Black can answer 2.f4 with 2...d5 (the Falkbeer Countergambit), 2...d6 or 2...f5. Here is the first, played out.

After 1.e4 e5 2.f4 d5. Step through 3.fxe5?? to see the trap.

After 2...d5: 3.exd5

3.exd5 is the main move: it takes the pawn that attacks e4, so there's nothing for the queen to take. 3.Nf3 also holds, because the knight covers h4.

3.fxe5?? is the well-known blunder. 3...Qh4+ 4.g3 Qxe4+ forks the king and the rook on h1. Stepping aside with 4.Ke2 is even worse: 4...Qxe4+ 5.Kf2 Bc5+ 6.d4 Bxd4+, and White has to give up the queen to avoid being mated.

In rated online games in our library, 5% of players who reached this position played 3.fxe5??

After 2...d6: develop first

Here the pawn on e4 is loose in the same way. 3.Nf3 is the simplest: the knight covers h4, so there's no check. 3.d3 and 3.Nc3, protecting e4, are also fine.

Both pawn moves walk into the check. After 3.fxe5? Qh4+, 4.g3 Qxe4+ forks king and rook, and 4.Ke2 keeps the rook but leaves White's king stuck in the middle and White clearly worse. 3.f5??, pushing past, loses the rook the same way.

After 1.e4 e5 2.f4 d6. Step through 3.f5?? to see the same fork.

In rated online games in our library, 3% of players who reached this position played 3.f5??

After 2...f5: 3.exf5

Black answers the gambit with a gambit of its own. 3.exf5 is right: White's pawn leaves e4, so ...Qh4+ and ...Qxe4+ win nothing.

3.fxe5?? loses the rook: 3...Qh4+ 4.g3 Qxe4+ 5.Ne2 Qxh1.

After 1.e4 e5 2.f4 f5. Step through 3.fxe5?? to see the trap.

In rated online games in our library, 20% of players who reached this position played 3.fxe5??, one in five.

The idea to remember

Once your f-pawn has gone, ...Qh4+ is always there. Before you take on e5, ask what the check does: if g3 is your only good answer and your pawn on e4 is unprotected, ...Qxe4+ wins the rook. Nf3, covering h4, stops the check altogether.

Train it

This is one of the opening traps OptiChess teaches as a play-through: the moves play themselves until the moment you need to look closely, then you find the move. The habit behind it, asking what your opponent can do after your move, is the blunder check.

Why puzzles don't transfer to your games

Try it. Real positions, set at your level, every answer checked against the board. No account needed to start.

Start training