Final position — Black delivers mate
Budapest Defence: Smothered Mate (Heuston–Wall)
Black wins in 10 moves by checkmate. (Heuston - Wall, Fremont, CA 1991)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | e5 |
| 3. | dxe5 | Ng4 |
| 4. | Nf3 | Nc6 |
| 5. | Bf4 | Bb4+ |
| 6. | Nc3 | Qe7 |
| 7. | g3 | Ncxe5 |
| 8. | Ng5 | h6 |
| 9. | Ne4 | f5 |
| 10. | Nd2 | Nd3# |
How the Budapest Defence: Smothered Mate (Heuston–Wall) works
The Budapest Defence: Smothered Mate (Heuston–Wall) is a classic chess opening trap arising from the Budapest Defence. In this line Black delivers checkmate on move 10, punishing a natural-looking but losing idea from White.
The full sequence runs 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 Nc6 5.Bf4 Bb4+ 6.Nc3 Qe7 7.g3 Ncxe5 8.Ng5 h6 9.Ne4 f5 10.Nd2 Nd3#. 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 (Heuston - Wall, Fremont, CA 1991). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Budapest Defence: Smothered Mate (Heuston–Wall) 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.