Final position — Black is winning
Queen's Gambit Declined: Wins a Pawn
Black wins in 7 moves with a decisive material gain. (Unknown - Bruning, USA 1907)
The moves
| 1. | d4 | d5 |
| 2. | c4 | e6 |
| 3. | Bf4 | c5 |
| 4. | Nc3 | cxd4 |
| 5. | Bxb8 | dxc3 |
| 6. | Be5 | cxb2 |
| 7. | Bxb2 | Bb4+ |
How the Queen's Gambit Declined: Wins a Pawn works
The Queen's Gambit Declined: Wins a Pawn is a classic chess opening trap arising from the Queen's gambit declined. In this line Black wins decisive material by move 7, punishing a natural-looking but losing idea from White.
The full sequence runs 1.d4 d5 2.c4 e6 3.Bf4 c5 4.Nc3 cxd4 5.Bxb8 dxc3 6.Be5 cxb2 7.Bxb2 Bb4+. Each move looks reasonable, which is exactly why the trap is so effective over the board — White walks into it while trying to play "normal" developing moves.
This pattern is well known from master and correspondence play (Unknown - Bruning, USA 1907). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Queen's Gambit Declined: Wins a Pawn in the Trapsterapp to play it out on a live board, drill it in practice mode, and learn how to avoid it when it's set for you — along with the full library of chess traps and gambits, fully offline.