Daily Chess Improvement: Important Deep Endgame Analysis!

This is an important position to fully analyze

It is white to move! Is this a win or draw for white? What are the key ideas and continuation plans?

Comments (7)
No. 1-7
CraigB
CraigB

It's hardly intuitive for Black to defend by giving up his dark-squared bishop when he has 6 pawns locked on white squares, but he can just defend by getting his K to f6 and the B to e8. Then b5 is reinforced and the K is prepared to follow the White K to the Q-side via e7-d8-c7. I think the key idea that made me think of this was that the dark squared B would be an obstacle to getting the K to c7 in some variation I was looking at.

Yancey_Ward
Yancey_Ward

Editor

Here is what I end up with after exchanging at e7- I can't figure out how to win this:

1.Kg3 Be7 2.Be7 Ke7 3.Kf2 Kd7 4.Ke1 Be8 5.Kd2 Bf7 6.Kc3 Bg6 7.Kb3 Kc7 8.Ka4 Be8 9.Ka5 Bg6 10.a4 Bf7 11.b5 cb5 12.ab5 ab5 13.Kb5 Be8 14.Ka5 Bg6 15.Bb5)

Yancey_Ward
Yancey_Ward

Editor

Right now, Craig, I don't have an answer to this problem. I need to preserve the dark squared bishop to break the hold on b6 in my line (control of c7), but I can't preserve the bishop and keep the black bishop off of h4 after 1.Kg3 Be7. Also, I can't find a way to accomplish my plan without 1.Kg3. I would have to say this is draw.

CraigB
CraigB

I don't see what White can do about 1. Kg3 Be7. If White exchanges, then Black's K just has to shadow White's K; protecting the Bg6 if Whites K stays on the k-side and getting to c7 if White's K marches to the Q-side.

Yancey_Ward
Yancey_Ward

Editor

Here is the idea with a plausible line. I think in this line that white must keep the dark-squared bishop on the h4/d8 diagonal to keep the black bishop from attacking the white pawns from behind, but is done on move 2 in the line below. I guess the real question right now is can black effectively put the other bishop on c8 to prevent the sacrifice at a6.

1.Kg3 Ke8 2.Bh4 Bg7 3.Kf2 Bf7 4.Ke1 Kd7 5.Kd2 Kc7 6.Kc3 Bg6 7.Kb3 Bf7 8.Ka4 Bg6 9.Ka5 Bf7 10.a4 Bg6 11.Ba6 ba6 12.Ka6

Yancey_Ward
Yancey_Ward

Editor

I will try to put together a plausible line for this idea tomorrow- it is late and I need to get some sleep.

Yancey_Ward
Yancey_Ward

Editor

At a first pass look at this, I would be tempted to bring the white king all the way over to a5, then play a4 followed by a sacrifice of the white squared bishop at a6 for the black a and b pawns. Then the white king goes to a7, and white can use a check from d6 to make the black king give up control of the b6 square.

Not really sure this is the right plan, but it is the only one I can at least see might win this. The main problem I would have here is being sure black has no counterplay- I don't see any, but this complicated.



SusanPolgar
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Yancey_Ward
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