Final position — Black is winning
Alapin's Opening: Knight Fork
Black wins in 10 moves with a decisive material gain. (Seibot - Luetz, St. Petersburg 1902)
The moves
| 1. | e4 | e5 |
| 2. | Ne2 | Nf6 |
| 3. | f4 | exf4 |
| 4. | Nxf4 | Nxe4 |
| 5. | Qe2 | Qe7 |
| 6. | Nd5 | Qe5 |
| 7. | Nbc3 | c6 |
| 8. | d4 | Qf5 |
| 9. | Nxe4 | cxd5 |
| 10. | Nd6+ |
How the Alapin's Opening: Knight Fork works
The Alapin's Opening: Knight Fork is a classic chess opening trap arising from the Alapin's Opening. In this line Black wins decisive material by move 10, punishing a natural-looking but losing idea from White.
The full sequence runs 1.e4 e5 2.Ne2 Nf6 3.f4 exf4 4.Nxf4 Nxe4 5.Qe2 Qe7 6.Nd5 Qe5 7.N1c3 c6 8.d4 Qf5 9.Nxe4 cxd5 10.Nd6+. 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 (Seibot - Luetz, St. Petersburg 1902). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the Alapin's Opening: Knight Fork 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.