Final position — White is winning
Sacrifice on F7
White wins in 11 moves with a decisive material gain. (50 Opening Traps,Part 1 - Sacrifice on F7 - A13 - https://lichess.org/@/CHESSLUCAFD)
The moves
| 1. | Nf3 | Nf6 |
| 2. | c4 | e6 |
| 3. | g3 | d5 |
| 4. | Bg2 | dxc4 |
| 5. | O-O | a6 |
| 6. | Na3 | c5 |
| 7. | Nxc4 | b5 |
| 8. | Nce5 | Bb7 |
| 9. | Nxf7 | Kxf7 |
| 10. | Ng5+ | Ke8 |
| 11. | Bxb7 |
How the Sacrifice on F7 works
The Sacrifice on F7 is a classic chess opening trap arising from the Reti Opening. In this line White wins decisive material by move 11, punishing a natural-looking but losing idea from Black.
The full sequence runs 1.Nf3 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.O-O a6 6.Na3 c5 7.Nxc4 b5 8.Nce5 Bb7 9.Nxf7 Kxf7 10.Ng5+ Ke8 11.Bxb7. 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 (50 Opening Traps,Part 1 - Sacrifice on F7 - A13 - https://lichess.org/@/CHESSLUCAFD). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the Sacrifice on F7 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.