Final position — Black delivers mate
King's Pawn Opening: Bxf2 Sacrifice & Mate
Black wins in 11 moves by checkmate. (Siegemund - Eger, Germany 1979)
The moves
| 1. | e4 | Nc6 |
| 2. | d4 | e5 |
| 3. | d5 | Nce7 |
| 4. | c4 | Ng6 |
| 5. | Nf3 | Bc5 |
| 6. | Nc3 | d6 |
| 7. | Na4 | Bb6 |
| 8. | b4 | Nf6 |
| 9. | Bg5 | Bxf2+ |
| 10. | Ke2 | Nxe4 |
| 11. | Bxd8 | Nf4# |
How the King's Pawn Opening: Bxf2 Sacrifice & Mate works
The King's Pawn Opening: Bxf2 Sacrifice & Mate is a classic chess opening trap arising from the King's pawn opening. In this line Black delivers checkmate on move 11, punishing a natural-looking but losing idea from White.
The full sequence runs 1.e4 Nc6 2.d4 e5 3.d5 Nce7 4.c4 Ng6 5.Nf3 Bc5 6.Nc3 d6 7.Na4 Bb6 8.b4 Nf6 9.Bg5 Bxf2+ 10.Ke2 Nxe4 11.Bxd8 Nf4#. 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 (Siegemund - Eger, Germany 1979). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the King's Pawn Opening: Bxf2 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.