Help KID theory by analyzing this endgame. - Chess Forums

NimzoPatzer

Sep 30, 2016

0

#1

I am right now doing some home analysis (which perhaps may be flawed and worthy of a patzer) on the Bronstein Queen sac line, and after move 30 or so I reached this position:

Black is solid, has the bishop pair and a pawn for the exchange, but is this enough to win? How do you evaluate this endgame? Is there a clear way to activate White's rook? Can Black succesfully defend on the queenside?

Depending on the analysis provided, this line may be busted or it may be good for Black.

Arisktotle

Oct 1, 2016

0

#2

My gut feeling is that white should try to exchange h3 for h7 to get relief from defending this pawn. After 1. h4 Bg4 (presuming black tries to prevent it) 2. Nd1 Bf4 3. Ne3, black faces the choice between burying his bishop on h5, exchanging bishop for knight (not advised) and allowing h5 to go through. After the pawn exchange, white has his hands (more or less) free to start a line opening action on the queen side to get his rook working. Of course he must now keep the passed pawn g6 in check, but black will hesitate to push it and deliver f5 to the white knight.

Just a few thoughts but certainly not exhaustive. I am not strong enough as a chess player to properly judge this position though I am quite a bit better than my blitz rating suggests. Hopefully, you'll get an IM to look at it and give his views.

LalappanStrikes

Oct 1, 2016

0

#3

NimzoPatzer wrote:

I am right now doing some home analysis (which perhaps may be flawed and worthy of a patzer) on the Bronstein Queen sac line, and after move 30 or so I reached this position:

Black is solid, has the bishop pair and a pawn for the exchange, but is this enough to win? How do you evaluate this endgame? Is there a clear way to activate White's rook? Can Black succesfully defend on the queenside?

Depending on the analysis provided, this line may be busted or it may be good for Black.

Since the white rook is not so active,the position is equal.

NimzoPatzer

Oct 1, 2016

0

#4

LalappanStrikes escribió:

NimzoPatzer wrote:

I am right now doing some home analysis (which perhaps may be flawed and worthy of a patzer) on the Bronstein Queen sac line, and after move 30 or so I reached this position:

Black is solid, has the bishop pair and a pawn for the exchange, but is this enough to win? How do you evaluate this endgame? Is there a clear way to activate White's rook? Can Black succesfully defend on the queenside?

Depending on the analysis provided, this line may be busted or it may be good for Black.

Since the white rook is not so active,the position is equal.

I dont think you can analyze a position like that, yes, the rook is not active for the moment, but if White manages to activate it Black will have a hard time, so, is there a way to activate the rook? Can Black build some fortress or quickly exchange pawns of the board?

IM pfren

Oct 1, 2016

0

#5

Doesn't look like a very interesting position. In general the bishop pair almost compensates for rook and knight, and black also has an extra pawn- but here the bishops have limited power due to the closed center. Black will be lucky to draw, although I don't believe he can against best play.

Is it white, or black to play?

LalappanStrikes

Oct 1, 2016

0

#6

NimzoPatzer wrote:

LalappanStrikes escribió:

NimzoPatzer wrote:

I am right now doing some home analysis (which perhaps may be flawed and worthy of a patzer) on the Bronstein Queen sac line, and after move 30 or so I reached this position:

Black is solid, has the bishop pair and a pawn for the exchange, but is this enough to win? How do you evaluate this endgame? Is there a clear way to activate White's rook? Can Black succesfully defend on the queenside?

Depending on the analysis provided, this line may be busted or it may be good for Black.

Since the white rook is not so active,the position is equal.

I dont think you can analyze a position like that, yes, the rook is not active for the moment, but if White manages to activate it Black will have a hard time, so, is there a way to activate the rook? Can Black build some fortress or quickly exchange pawns of the board?

It is really hard to open up a position like this.

NimzoPatzer

Oct 1, 2016

0

#7

pfren escribió:

Doesn't look like a very interesting position. In general the bishop pair almost compensates for rook and knight, and black also has an extra pawn- but here the bishops have limited power due to the closed center. Black will be lucky to draw, although I don't believe he can against best play.

Is it white, or black to play?

Yeah, I was scared of reading that. Black position is solid but as soon as he plays c6 or something like that to open up the position I am afraid all the position will colapse. In the position it is White to play, Black just played a6 avoiding Nb5.

NimzoPatzer

Oct 1, 2016

0

#8

Lappan, what about Rb1-b4-b5, it was my first idea when seeing the position for White, seems like if he somehow manages to get rid or defend his h-pawn and play Rb1-b4-b5 Black will have a horrible time defending.

NimzoPatzer

Oct 1, 2016

0

#9

Arisktotle escribió:

My gut feeling is that white should try to exchange h3 for h7 to get relief from defending this pawn. After 1. h4 Bg4 (presuming black tries to prevent it) 2. Nd1 Bf4 3. Ne3, black faces the choice between burying his bishop on h5, exchanging bishop for knight (not advised) and allowing h5 to go through. After the pawn exchange, white has his hands (more or less) free to start a line opening action on the queen side to get his rook working. Of course he must now keep the passed pawn g6 in check, but black will hesitate to push it and deliver f5 to the white knight.

Just a few thoughts but certainly not exhaustive. I am not strong enough as a chess player to properly judge this position though I am quite a bit better than my blitz rating suggests. Hopefully, you'll get an IM to look at it and give his views.

Thanks, that ws exactly what I was thinking, as soon as the h-pawn problem dissapears White has his hands free on the kingside.

NimzoPatzer

Oct 1, 2016

0

#10

If someone is interested on seeing how my analysis reached that position look at post 12 in this thread:

https://www.chess.com/forum/view/chess-openings/bronstein-s-mainline-queen-sac