Sicilian Defence, Smith-Morra Gambit, Siberian Trap

This article is about the chess opening. For the geophysical feature, see Siberian Traps.

	a	b	c	d	e	f	g	h
8									8
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2									2
1									1
	a	b	c	d	e	f	g	h

Black wins with 9...Nd4!

The Siberian Trap is a chess opening trap. After a series of natural moves in the Smith-Morra Gambit of the Sicilian Defence, White can lose a queen. The name appears to result from Boris Schipkov of Novosibirsk.

The trap has occurred at least twice in tournament play: Kolenbet–Schipkov, Khabarovsk 1987, and Tesinsky–Magerramov, Budapest 1990.

Here are the moves:

1. e4 c5

This is the Sicilian Defense.

2. d4 cxd4

3. c3 dxc3

White's 3.c3 introduces the Smith-Morra Gambit. Black accepts the gambit pawn.

4. Nxc3 Nc6

5. Nf3 e6

6. Bc4 Qc7

7. 0-0 Nf6

8. Qe2

White prepares e4-e5. This move is playable if White is careful on the next move. After 8.Re1 Bc5 Black has a good game as White's f2 square is sensitive. White also doesn't achieve much after 8.h3 a6. Instead, NCO suggests 8.Nb5 Qb8 9.e5 Nxe5 10.Nxe5 Qxe5 11.Re1 and White has some compensation for the sacrificed pawns.

8. ... Ng4!

9. h3??

(See diagram.) This is a decisive mistake. The same fate befell White after 9.Bb3?? in Kramadzhian-Schipkov, Novosibirsk 1988. Another try that doesn't work is 9.Rd1 Bc5. MCO-14 recommends 9.Nb5! Qb8 (threatening 10...a6 11.Nc3 Nd4!) 10.h3 h5 11.g3 Nge5 12.Nxe5 Nxe5 13.Bf4 a6 with a sharp position with roughly equal chances.

9. ... Nd4!

The Black threat of 10...Nxf3+ followed by 11...Qh2# wins White's queen, at least. If 10.Nxd4?, Qh2#.

References

• Burgess, Graham (1994). Winning with the Smith-Morra Gambit. Batsford. ISBN 0805035745. 
• de Firmian, Nick (1999). Modern Chess Openings: MCO-14. Random House Puzzles & Games. ISBN 0-8129-3084-3. 
• Nunn, John (ed.), et al. (1999). Nunn's Chess Openings. Everyman Chess. ISBN 1-85744-221-0. 
• Langrock, Hannes (2006). The Modern Morra Gambit: A Dynamic Weapon Against the Sicilian. Russell Enterprises. ISBN 1-888690-32-1. 

External links

• Chess Siberia