Final position — White is winning
Sicilian Defence: Knight Fork
White wins in 10 moves with a decisive material gain. (P. Mecking - Sepulveda, Internet 1995)
The moves
| 1. | e4 | c5 |
| 2. | Nf3 | Nc6 |
| 3. | d4 | cxd4 |
| 4. | Nxd4 | Nf6 |
| 5. | Nc3 | d6 |
| 6. | Bg5 | Bd7 |
| 7. | Be2 | e5 |
| 8. | Ndb5 | Bc8 |
| 9. | Nd5 | Be6 |
| 10. | Nbc7+ |
How the Sicilian Defence: Knight Fork works
The Sicilian Defence: Knight Fork is a classic chess opening trap arising from the Sicilian Defence. In this line White wins decisive material by move 10, punishing a natural-looking but losing idea from Black.
The full sequence runs 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Be2 e5 8.Ndb5 Bc8 9.Nd5 Be6 10.Nbc7+. 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 (P. Mecking - Sepulveda, Internet 1995). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the Sicilian Defence: 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.