Recognise the Pattern # 34

Today we will see another typical way to destroy a king’s shelter, this time by sacrificing material on g7/g2. This sacrifice often opens the h1-a8 (a1-h8) diagonal and the g-file and the success of such an attack usually depends upon available whether these can be used. You may need to check the possibilities of further sacrifices to drag out the opponent’s monarch into the danger zone which is very typical with this theme.

Ralf Lau (2460) against Sergey Smagin (2520) in 1990

Q: White’s last move was Nf3-e5. How would you evaluate this move?

Solution: White’s last move was a big mistake as it allows Black to gain a very valuable tempo on the knight by playing d7-d6, which opens up the light square bishop and prepares the typical sacrifice.

19…d6! 20. Nd3 Nxg2!!

Nxc6 leads to the same continuation as the game.

21. Kxg2??
This leads to mate in 5 although 21.f3/f4 doesn’t change the outcome because after Nxe1, black is pawn and exchange up in addition to this Safety of white’s Monarch has been already compromised.

21….Bh3!!

The only way to win.

22. Kxh3 Qf3
23. g5
and White resigned here.

Work for readers!!

Here are some instructive games on the same theme to study:

Bogoljubov against Mieses
Spielmann against Tartakower

Ashvin Chauhan