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PostPosted: Thu Aug 02, 2018 16:14 
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Joined: Thu Apr 26, 2007 18:51
Posts: 954
Location: FRANCE
Hi,

The following position appears during last Nijmegen Open at the 7th round

Antony Alavoine - Arnoud de Greef
Position after 34.48x37
Image
Black to play

Previously in the game Black got a winning position but after a weak black move white reached the following position with some compensations for the man down.
My question is the following: is the position still a winning one for black?

My first searchs with Damy told me that the position may be a drawing position but I am not sure at all!
Can you help me?

_________________
Gérard


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PostPosted: Thu Aug 02, 2018 17:16 
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Joined: Wed Apr 14, 2004 16:04
Posts: 1609
TAILLE wrote:
Hi,

The following position appears during last Nijmegen Open at the 7th round

Antony Alavoine - Arnoud de Greef
Position after 34.48x37
Image
Black to play

Previously in the game Black got a winning position but after a weak black move white reached the following position with some compensations for the man down.
My question is the following: is the position still a winning one for black?

My first searchs with Damy told me that the position may be a drawing position but I am not sure at all!
Can you help me?


Since this is regular draughts, and it's an 8 vs 7 position, it's a draw :) No seriously, how is black going to win? Kingsrow sees +68 after 5 minutes thinking, so it's never going to win.


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PostPosted: Thu Aug 02, 2018 18:01 
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Joined: Thu Apr 26, 2007 18:51
Posts: 954
Location: FRANCE
Rein Halbersma wrote:
TAILLE wrote:
Hi,

The following position appears during last Nijmegen Open at the 7th round

Antony Alavoine - Arnoud de Greef
Position after 34.48x37
Image
Black to play

Previously in the game Black got a winning position but after a weak black move white reached the following position with some compensations for the man down.
My question is the following: is the position still a winning one for black?

My first searchs with Damy told me that the position may be a drawing position but I am not sure at all!
Can you help me?


Since this is regular draughts, and it's an 8 vs 7 position, it's a draw :) No seriously, how is black going to win? Kingsrow sees +68 after 5 minutes thinking, so it's never going to win.


It sounds for me as a confirmation it is a draw.
Can you tell me if the score done by Kingsrow is decreasing with the time?
+68 is still a substantial advantage isn't it?

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Gérard


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PostPosted: Thu Aug 02, 2018 18:26 
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Joined: Wed Apr 14, 2004 16:04
Posts: 1609
TAILLE wrote:
It sounds for me as a confirmation it is a draw.
Can you tell me if the score done by Kingsrow is decreasing with the time?
+68 is still a substantial advantage isn't it?


I will let it run overnight. But +68 is less than 1 piece, and in endgames, it's drawish (in the opening / early middle game, it's pretty good of course). Usually when Kingsrow is having trouble proving a win, the score is around +200-300.


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