Final position — White is winning
King's Pawn Opening: Bxf7 Sacrifice (Laszlo–Biro)
White wins in 9 moves with a decisive material gain. (Laszlo - Biro, 1940.??.??)
The moves
| 1. | e4 | d6 |
| 2. | d4 | g6 |
| 3. | Nf3 | Bg7 |
| 4. | Bc4 | Bg4 |
| 5. | Bxf7+ | Kf8 |
| 6. | Bb3 | Bf6 |
| 7. | h3 | Bd7 |
| 8. | e5 | Bg7 |
| 9. | Ng5 |
How the King's Pawn Opening: Bxf7 Sacrifice (Laszlo–Biro) works
The King's Pawn Opening: Bxf7 Sacrifice (Laszlo–Biro) is a classic chess opening trap arising from the King's pawn opening. 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 d6 2.d4 g6 3.Nf3 Bg7 4.Bc4 Bg4 5.Bxf7+ Kf8 6.Bb3 Bf6 7.h3 Bd7 8.e5 Bg7 9.Ng5. 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 (Laszlo - Biro, 1940.??.??). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the King's Pawn Opening: Bxf7 Sacrifice (Laszlo–Biro) 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.