Final position — Black is winning
Benko Gambit: Wins a Pawn (Dobosz–Massing)
Black wins in 14 moves with a decisive material gain. (Dobosz - Massing, Goch 1991)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | c5 |
| 3. | d5 | b5 |
| 4. | Nd2 | Qa5 |
| 5. | e4 | Nxe4 |
| 6. | b4 | Qxb4 |
| 7. | Rb1 | Qc3 |
| 8. | Rxb5 | Qd4 |
| 9. | Nxe4 | Qxe4+ |
| 10. | Be3 | g6 |
| 11. | Nf3 | Bg7 |
| 12. | Bd3 | Qg4 |
| 13. | h3 | Qxg2 |
| 14. | Rh2 |
How the Benko Gambit: Wins a Pawn (Dobosz–Massing) works
The Benko Gambit: Wins a Pawn (Dobosz–Massing) is a classic chess opening trap arising from the Benko Gambit. In this line Black wins decisive material by move 14, punishing a natural-looking but losing idea from White.
The full sequence runs 1.d4 Nf6 2.c4 c5 3.d5 b5 4.Nd2 Qa5 5.e4 Nxe4 6.b4 Qxb4 7.Rb1 Qc3 8.Rxb5 Qd4 9.Nxe4 Qxe4+ 10.Be3 g6 11.Nf3 Bg7 12.Bd3 Qg4 13.h3 Qxg2 14.Rh2. 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 (Dobosz - Massing, Goch 1991). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Benko Gambit: Wins a Pawn (Dobosz–Massing) 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.