Final position — Black delivers mate
Budapest Defence: Nxf2 Sacrifice & Mate
Black wins in 10 moves by checkmate. (Fomin - Fedossov, USSR 1988)
The moves
| 1. | d4 | Nf6 |
| 2. | c4 | e5 |
| 3. | dxe5 | Ng4 |
| 4. | Nc3 | d6 |
| 5. | exd6 | Bxd6 |
| 6. | h3 | Nxf2 |
| 7. | Kxf2 | Qh4+ |
| 8. | Kf3 | Qg3+ |
| 9. | Ke4 | Bf5+ |
| 10. | Kxf5 | Qg6# |
How the Budapest Defence: Nxf2 Sacrifice & Mate works
The Budapest Defence: Nxf2 Sacrifice & Mate 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.Nc3 d6 5.exd6 Bxd6 6.h3 Nxf2 7.Kxf2 Qh4+ 8.Kf3 Qg3+ 9.Ke4 Bf5+ 10.Kxf5 Qg6#. 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 (Fomin - Fedossov, USSR 1988). 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: Nxf2 Sacrifice & Mate 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.