Marshall Trap

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This article uses algebraic notation to describe chess moves.
Image:chess_zhor_26.png
Image:chess_zver_26.png
a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 b1 c1 d1 e1 f1 g1 h1
Image:chess_zver_26.png
Image:chess_zhor_26.png
Position after 10.Re1?
Black wins with 10...Bxh2+!

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

The trap begins with the moves

1. e4 e5
2. Nf3 Nf6

Black plays 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.

10. ... Bxh2+!

An unexpected blow.

11. Kxh2 Nxf2

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

12. Qe2 Nxd3
13. Qxd3 Bxf3

Black threatens ...Qh4+ forking the white king and rook, winning material.

[edit] References