1. The trap

2. References

The Marshall Trap is a chess opening trap in Petrov's Defence named after Frank Marshall.

The trap

The trap begins with Black playing Petrov's Defence.

3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 Bg4 9. cxd5 f5 10. Re1? (see diagram)

White should play 10.Nc3 instead.

An unexpected blow.

Black forks the white queen and bishop, forcing the queen to move.

Followed by 15...Qxe1 winning the e1-rook. Black has a winning material advantage.

References

• {{cite book | author=Hooper, David and Kenneth Whyld | title=The Oxford Companion to Chess | publisher=Oxford University| year=1996 | isbn=0-19-280049-3}}

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