Final position — Black is winning
Benko Gambit: Opening Trap (Domanski–Schlesinger)
Black wins in 11 moves with a decisive material gain. (Domanski - Schlesinger, Giessen 1991)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | c5 |
| 3. | d5 | b5 |
| 4. | cxb5 | a6 |
| 5. | e3 | axb5 |
| 6. | Bxb5 | Qa5+ |
| 7. | Nc3 | Bb7 |
| 8. | Bd2 | Qb6 |
| 9. | Bc4 | e6 |
| 10. | Bc1 | Qb4 |
| 11. | Qb3 | exd5 |
How the Benko Gambit: Opening Trap (Domanski–Schlesinger) works
The Benko Gambit: Opening Trap (Domanski–Schlesinger) is a classic chess opening trap arising from the Benko Gambit. In this line Black wins decisive material by move 11, punishing a natural-looking but losing idea from White.
The full sequence runs 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.e3 axb5 6.Bxb5 Qa5+ 7.Nc3 Bb7 8.Bd2 Qb6 9.Bc4 e6 10.Bc1 Qb4 11.Qb3 exd5. 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 (Domanski - Schlesinger, Giessen 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: Opening Trap (Domanski–Schlesinger) 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.