Final position — Black is winning
King's Pawn Opening: Black Queen Trap (Bouillon–Schwab)
Black wins in 13 moves with a decisive material gain. (Bouillon - Schwab, 1991.??.??)
The moves
| 1. | e4 | Nc6 |
| 2. | d4 | e5 |
| 3. | dxe5 | Nxe5 |
| 4. | Nf3 | Qf6 |
| 5. | Nxe5 | Qxe5 |
| 6. | Bd3 | Bc5 |
| 7. | O-O | Nf6 |
| 8. | Nc3 | d6 |
| 9. | h3 | Bxh3 |
| 10. | Nd5 | Qg3 |
| 11. | Nxf6+ | gxf6 |
| 12. | Qf3 | Qxf3 |
| 13. | gxf3 | Rg8+ |
How the King's Pawn Opening: Black Queen Trap (Bouillon–Schwab) works
The King's Pawn Opening: Black Queen Trap (Bouillon–Schwab) is a classic chess opening trap arising from the King's pawn opening. In this line Black wins decisive material by move 13, punishing a natural-looking but losing idea from White.
The full sequence runs 1.e4 Nc6 2.d4 e5 3.dxe5 Nxe5 4.Nf3 Qf6 5.Nxe5 Qxe5 6.Bd3 Bc5 7.O-O Nf6 8.Nc3 d6 9.h3 Bxh3 10.Nd5 Qg3 11.Nxf6+ gxf6 12.Qf3 Qxf3 13.gxf3 Rg8+. 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 (Bouillon - Schwab, 1991.??.??). Recognising it early lets you either spring it as Black or sidestep it as White.
Practice this trap move-by-move
Open the King's Pawn Opening: Black Queen Trap (Bouillon–Schwab) 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.