Final position — White is winning
Budapest Defence: Bxf2 Sacrifice
White wins in 9 moves with a decisive material gain. (Zak - Mieses, London 1944)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | e5 |
| 3. | dxe5 | Ng4 |
| 4. | Nf3 | Bc5 |
| 5. | e4 | Nc6 |
| 6. | Bg5 | Bxf2+ |
| 7. | Ke2 | Nd4+ |
| 8. | Qxd4 | Bxd4 |
| 9. | Bxd8 | Bxb2 |
How the Budapest Defence: Bxf2 Sacrifice works
The Budapest Defence: Bxf2 Sacrifice is a classic chess opening trap arising from the Budapest Defence. In this line White wins decisive material by move 9, punishing a natural-looking but losing idea from Black.
The full sequence runs 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 Bc5 5.e4 Nc6 6.Bg5 Bxf2+ 7.Ke2 Nd4+ 8.Qxd4 Bxd4 9.Bxd8 Bxb2. 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 (Zak - Mieses, London 1944). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the Budapest Defence: Bxf2 Sacrifice 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.