Final position — White is winning
Scandinavian Defence: Wins a Piece (Cagle–Wall)
White wins in 8 moves with a decisive material gain. (Cagle - Wall, Bill, 1976.??.??)
The moves
| 1. | e4 | d5 |
| 2. | exd5 | e6 |
| 3. | dxe6 | Bxe6 |
| 4. | d4 | Nf6 |
| 5. | Nc3 | Bd6 |
| 6. | d5 | Nxd5 |
| 7. | Nxd5 | Bxd5 |
| 8. | Qxd5 | Bb4+ |
How the Scandinavian Defence: Wins a Piece (Cagle–Wall) works
The Scandinavian Defence: Wins a Piece (Cagle–Wall) is a classic chess opening trap arising from the Scandinavian Defence. In this line White wins decisive material by move 8, punishing a natural-looking but losing idea from Black.
The full sequence runs 1.e4 d5 2.exd5 e6 3.dxe6 Bxe6 4.d4 Nf6 5.Nc3 Bd6 6.d5 Nxd5 7.Nxd5 Bxd5 8.Qxd5 Bb4+. 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 (Cagle - Wall, Bill, 1976.??.??). 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: Wins a Piece (Cagle–Wall) 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.