Can Black survive?

Game 1737288

The above is a recent game I played with chessicle. I - as black - resigned on move 47, facing a seemingly unstoppable pawn barrage, and feeling somewhat livid with not having played Kd6 when I had the chance. The final position (black to play) looks like this:



Looking at it again it's not such an immediate win for white as I had first thought.

What is white's winning line, or can black survive?

Originally posted by T1000
Game 1737288

The above is a recent game I played with chessicle. I - as black - resigned on move 47, facing a seemingly unstoppable pawn barrage, and feeling somewhat livid with not having played Kd6 when I had the chance. The final position (black to play) looks like this:

[fen]8/p1p5/1PP5/K1P1k1pp/4p3/4N1P1/4b2P/8 b - - 0 47[/fen]

Looking at i white as I had first thought. What is white's winning line? (Black can't survive... can he?)

Originally posted by zebano
if cxb6+ then cxb6
if Kd6 then bxa7;
if axb6+, Kxb6 wins (your bishop cant get back and his king holds yours off.
if axb6+ then cxb6;
If then Kd6 then b7
If if cxb6+ Kxb6 is the same as above.

47...axb6 48. cxb6 cxb6 49. Kxb6 Kd6 is forced, imo.

[Edit]Then 50. Nf5+ wins.

This was my analysis before I found the Nf5+ move.
"
Then 50. c7 Ba6 offering to sac the bishop for the crucial passed pawn, and forcing the white king to the edge, allowing the black king to reach the centre of the board first.

If the bishop gets to c8, its a touch position to break down, so i think I'd take the bishop, but then it gets really complicated. More calculation required."

D

Originally posted by zebano
if cxb6+ then cxb6
if Kd6 then bxa7;
if axb6+, Kxb6 wins (your bishop cant get back and his king holds yours off.

Originally posted by Ragnorak
47...axb6 48. cxb6 cxb6 49. Kxb6 Kd6 is forced, imo.

Then 50. Ba6 offering to sac the bishop for the crucial passed pawn, and forcing the white king to the edge, allowing the black king to reach the centre of the board first.

If the bishop gets to c8, its a touch position to break down, so i think I'd take the bishop, but then it gets really complicated. More calculation required.

D

Originally posted by T1000
Aye, that's kind of where I'm heading, though 49. ... Ke6 is (I think, maybe) better for black than 49. ... Kd6.

Originally posted by Ragnorak
Even after 49...Ke6 (which probably is a better move than Kd6) 50. Nf5+ wins. (See edit above)

D

Originally posted by T1000
51. ... Bc4 maybe in response to 50. Nf5+

Edit: Scrub that. The knight is still too active - so that even if the c pawn is stopped the knight will start mopping up the pawns. Does look like a definite loss for black.

Originally posted by Ragnorak
The knight isn't really active as he is too concerned with the passed e pawn. If he goes after the others, white is lost.

I think the key move comes after 47...axb6 48. cxb6 cxb6 49. Kxb6 Ke6

So 50. c7 Kd7 51. Nd5 should do the job, I think (again 🙄)

Certainly a very complicated and interesting position. And well worth playing on in.

D

Originally posted by Ragnorak
The knight isn't really active as he is too concerned with the passed e pawn. If he goes after the others, white is lost.

I think the key move comes after 47...axb6 48. cxb6 cxb6 49. Kxb6 Ke6

So 50. c7 Kd7 51. Nd5 should do the job, I think (again 🙄)

Certainly a very complicated and interesting position. And well worth playing on in.

D

Originally posted by T1000
Game 1737288

The above is a recent game I played with chessicle. I - as black - resigned on move 47, facing a seemingly unstoppable pawn barrage, and feeling somewhat livid with not having played Kd6 when I had the chance. The final position (black to play) looks like this:

[fen]8/p1p5/1PP5/K1P1k1pp/4p3/4N1P1/4b2P/8 b - - 0 47[/fen]

Looking at i ...[text shortened]... win for white as I had first thought.

What is white's winning line, or can black survive?

Originally posted by Testrider
I think it is game over for black, after Nd5 he has no decent way to prevent queening, the toughest defence seems Bg4 which is followed by Nf6+ Nxe4 and Nxg5 where it is really hopeless for black.

Originally posted by Kirwan
It's a clear win for white.

Originally posted by Trains44
I dont understand the resigning. Why? You had nothing to lose to continue in spite of the pawn advance. If you took a little more time you would of seen KD6. People are always in a rush to resign for some strange reason.