Final position — White is winning
Vienna Game: Opening Trap (Wessman–Becx)
White wins in 9 moves with a decisive material gain. (Wessman - Becx, Reykjavik 1990)
The moves
| 1. | e4 | e5 |
| 2. | Nc3 | Nf6 |
| 3. | f4 | d5 |
| 4. | fxe5 | Nxe4 |
| 5. | Nf3 | Bg4 |
| 6. | Qe2 | Nc6 |
| 7. | Nxe4 | Nd4 |
| 8. | Qd3 | Bxf3 |
| 9. | Ng3 |
How the Vienna Game: Opening Trap (Wessman–Becx) works
The Vienna Game: Opening Trap (Wessman–Becx) is a classic chess opening trap arising from the Vienna Game. In this line White wins decisive material by move 9, punishing a natural-looking but losing idea from Black.
The full sequence runs 1.e4 e5 2.Nc3 Nf6 3.f4 d5 4.fxe5 Nxe4 5.Nf3 Bg4 6.Qe2 Nc6 7.Nxe4 Nd4 8.Qd3 Bxf3 9.Ng3. Each move looks reasonable, which is exactly why the trap is so effective over the board — Black walks into it while trying to play "normal" developing moves.
This pattern is well known from master and correspondence play (Wessman - Becx, Reykjavik 1990). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the Vienna Game: Opening Trap (Wessman–Becx) 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.