Final position — Black is winning
Queen's Gambit Declined: Wins a Piece
Black wins in 10 moves with a decisive material gain. (Khalilbeili - Furman, 1956.??.??)
The moves
| 1. | d4 | d5 |
| 2. | c4 | e6 |
| 3. | Nc3 | c5 |
| 4. | cxd5 | exd5 |
| 5. | Nf3 | Nc6 |
| 6. | g3 | c4 |
| 7. | e4 | dxe4 |
| 8. | Ng5 | Qxd4 |
| 9. | Bf4 | Bb4 |
| 10. | Nxe4 | Qxe4+ |
How the Queen's Gambit Declined: Wins a Piece works
The Queen's Gambit Declined: Wins a Piece is a classic chess opening trap arising from the Queen's gambit declined. In this line Black wins decisive material by move 10, punishing a natural-looking but losing idea from White.
The full sequence runs 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 c4 7.e4 dxe4 8.Ng5 Qxd4 9.Bf4 Bb4 10.Ngxe4 Qxe4+. 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 (Khalilbeili - Furman, 1956.??.??). 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 Piece 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.