Final position — White is winning
Scandinavian Defence: Knight Fork (Wall–LonelyMonkey)
White wins in 9 moves with a decisive material gain. (Wall - LonelyMonkey, Internet 1996)
The moves
| 1. | e4 | d5 |
| 2. | exd5 | Qxd5 |
| 3. | Nc3 | Qe5+ |
| 4. | Be2 | Bf5 |
| 5. | Nf3 | Qc5 |
| 6. | d4 | Qb6 |
| 7. | O-O | Nc6 |
| 8. | Nd5 | Qb5 |
| 9. | Nxc7+ |
How the Scandinavian Defence: Knight Fork (Wall–LonelyMonkey) works
The Scandinavian Defence: Knight Fork (Wall–LonelyMonkey) is a classic chess opening trap arising from the Scandinavian Defence. 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 d5 2.exd5 Qxd5 3.Nc3 Qe5+ 4.Be2 Bf5 5.Nf3 Qc5 6.d4 Qb6 7.O-O Nc6 8.Nd5 Qb5 9.Nxc7+. 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 (Wall - LonelyMonkey, Internet 1996). Recognising it early lets you either spring it as White or sidestep it as Black.
Practice this trap move-by-move
Open the Scandinavian Defence: Knight Fork (Wall–LonelyMonkey) 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.