Thoughts on this knight sac in the Anglo-Grunfeld?

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Avatar of General-Mayhem

It's not a particularly common line, but I run into it from time to time since I try to move-order my way out of playing against the Grunfeld. Anyway I know Black usually equalises with ...f6 and ...e5, but I found this idea (8. Bf4!?) in a game against Play Magnus age 11. I ended up accepting a threefold repetition after a long endgame struggle, but by my standards that's not bad so the sac can't be losing on the spot at least. Can't find this position in my database so was wondering what people's thoughts were on it.

Basically here are my thoughts, such as they are:

Pros:

White gets 3 pawns for the piece

Gets a protected passer on e4, and a queenside majority (so a possible endgame advantage)

Controls the centre without a decent way for Black to undermine it

Slight lead in development, and may be able to get rooks on the d-file before Black

Cons:

White's down a piece

If Black can force White to exchange a bishop for his knight, Black's bishop pair really comes to life

In some lines (where White plays f3) Black could get a minority-attack-like idea going with g5-g4, as fxg4 isolates the e-pawn and gxf3 gxf3 gives White a weakness on the f-file.

(Fritz thinks it's =, verging on =/+)



Avatar of General-Mayhem

P.S. I would post the game I mentioned but unfortunately the app crashed just after the repetition (!), and it was about 100 moves so can't remember it all...

Avatar of pmcharrison

WHAT GAMBIT IS THIS

Avatar of General-Mayhem
pmcharrison wrote:

WHAT GAMBIT IS THIS

IT IS THE BEST GAMBIT

Avatar of General-Mayhem
shkrelis_nemesis wrote:
General-Mayhem wrote:
pmcharrison wrote:

WHAT GAMBIT IS THIS

IT IS THE BEST GAMBIT

Sounds like you have your mind made up, so why do you need anybody else's thoughts?

 

Ah never mind that, it was an in-joke.

Avatar of General-Mayhem
An example game, if anyone is interested. 

Avatar of pfren

White might draw with some luck, but this is hardly an advertisement of this.

Avatar of General-Mayhem
pfren wrote:

White might draw with some luck, but this is hardly an advertisement of this.

Never claimed that it was. Simply thought it was interesting.