Chess Openings Lab
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Englund Gambit Trap

Black's queen grabs the b2 pawn in the Englund Gambit, and White's 6.Bc3, which attacks the queen, walks straight into a pin. After 6...Bb4 7.Qd2 Bxc3 8.Qxc3, the queen mates on c1.

Opening
Englund Gambit: Main Line
Moves
1.d4 e5 2.dxe5 Nc6 3.Nf3 Qe7 4.Bf4 Qb4+ 5.Bd2 Qxb2 6.Bc3 Bb4 7.Qd2 Bxc3 8.Qxc3 Qc1#
Set by
Black
The mistake
6.Bc3
Checked
every move legal; result confirmed by Stockfish 17.1

How the trap works

The Englund Gambit starts with 1.d4 e5, a pawn offer that the evaluation treats as dubious from the first move. After 2.dxe5 Nc6 3.Nf3 Qe7 4.Bf4, Black plays 4...Qb4+ and after 5.Bd2 takes a second pawn with 5...Qxb2. The queen now attacks the rook on a1.

  • 6.Bc3? is the mistake. It hits the queen and seems to win time, but it puts the bishop on a pinned square.
  • 6...Bb4! pins the c3 bishop. It cannot move without exposing the king, and it is attacked twice.
  • 7.Qd2 defends c3, and 7...Bxc3 takes the bishop anyway.
  • 8.Qxc3 recaptures, but the queen has left the back rank.
  • 8...Qc1#. The queen checks from c1 and covers d1 and d2. The white queen on c3 cannot take because the c2 pawn is in the way, and the knight on b1 blocks the a1 rook.

The tactical idea is a pin followed by a back-rank mate. White's queen had to guard both the pinned bishop and the first rank, and it could not do both.

The exact moment it goes wrong is 6.Bc3. Before that move White was clearly better and the evaluation shows it. Right after it, Black is winning. Developing the b1 knight to c3 is the better choice: it develops a piece, keeps the back rank under control and leaves the bishop on d2 as a guard.

The wider lesson for White is not to chase the queen with pieces that can be pinned. Develop first, and the extra pawns will count later.

How White avoids it

White should play Nc3, developing and covering the queenside squares. The evaluation before the mistake shows White clearly better, so a calm developing move keeps the gambit refuted.

Questions

How does the Englund Gambit Trap work?

After 6.Bc3, Black pins the bishop with 6...Bb4. White defends with 7.Qd2, but after 7...Bxc3 8.Qxc3 the queen has left d1, and 8...Qc1# lands on the back rank where nothing can take it.

What is the losing move in the Englund Gambit Trap?

White's mistake is 6.Bc3. White should play Nc3, developing and covering the queenside squares. The evaluation before the mistake shows White clearly better, so a calm developing move keeps the gambit refuted.

Is the Englund Gambit Trap worth playing for?

No for Black. The Englund Gambit gives White a clear edge from 1...e5 onward, so Black is relying on this exact trap.

Where it comes from

More opening traps