Question about post-game analysis

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Forkmeagain

Aug 17, 2019

I know that I blundered bad as usual in blitz games, but I have a few questions about the london

I'm trying to learn the system and what to do with the dark bishop, because he always gets the door slammed shut behind him in most lines leaving him out to fend for himself.

Questions: Is a trade of dark squared bishops ideal for white in the london in most situations?

Why did the engine tell me to sacrifice my doubled pawn on move 9?

Thanks

notmtwain

Aug 17, 2019

Forkmeagain wrote:

I know that I blundered bad as usual in blitz games, but I have a few questions about the london

I'm trying to learn the system and what to do with the dark bishop, because he always gets the door slammed shut behind him in most lines leaving him out to fend for himself.

Questions: Is a trade of dark squared bishops ideal for white in the london in most situations?

Why did the engine tell me to sacrifice my doubled pawn on move 9?

Thanks

Because if you take the g pawn, you lose the h7 pawn.

Forkmeagain

Aug 17, 2019

Ah got it it threatens g5 kicking the night, got it thanks

Shakaali

Aug 18, 2019

Forkmeagain wrote:

Questions: Is a trade of dark squared bishops ideal for white in the london in most situations?

Don't know about most situations but in you concrete situation it's certainly very good because black's remaing bishop is bad plus the e5-square is now quite weak. Black then makes things even worse for himself by opening the h-file for you and castling directly into the attack which you could have launched with g4.