Final position — Black is winning
Polish Opening: Opening Trap
Black wins in 7 moves with a decisive material gain. (Campbell - Blaine, Ohio 1982)
The moves
| 1. | b4 | e5 |
| 2. | a4 | d5 |
| 3. | c4 | dxc4 |
| 4. | Qc2 | Nc6 |
| 5. | Qxc4 | Be6 |
| 6. | Qc2 | Nd4 |
| 7. | Qd1 | Bb3 |
How the Polish Opening: Opening Trap works
The Polish Opening: Opening Trap is a classic chess opening trap arising from the Polish Opening. In this line Black wins decisive material by move 7, punishing a natural-looking but losing idea from White.
The full sequence runs 1.b4 e5 2.a4 d5 3.c4 dxc4 4.Qc2 Nc6 5.Qxc4 Be6 6.Qc2 Nd4 7.Qd1 Bb3. 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 (Campbell - Blaine, Ohio 1982). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Polish Opening: Opening Trap 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.