2017 World Cup 2-27 September, Tbilisi

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JustinHorton
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by JustinHorton » Mon Sep 04, 2017 5:19 pm

And just when it was there....

....it was gone.
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John Moore
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by John Moore » Mon Sep 04, 2017 5:29 pm

Erdos-Amin shows another strong GM missing the stalemate defence. Certainly, one that's worth remembering in Rook and Pawn endings.

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Christopher Kreuzer
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by Christopher Kreuzer » Mon Sep 04, 2017 5:32 pm

JustinHorton wrote:And just when it was there....

....it was gone.
Was there a winning chance there? What would be the continuation after 81.Be5+ (instead of 81.Rf8)?

Chris Rice
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by Chris Rice » Mon Sep 04, 2017 5:58 pm

Christopher Kreuzer wrote:
JustinHorton wrote:And just when it was there....

....it was gone.
Was there a winning chance there? What would be the continuation after 81.Be5+ (instead of 81.Rf8)?
Gawain on FB "Well I played a lot of moves. Sure someone can tell me if I was winning with my plan had I not blundered away the pawn. Well done to Cori"

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JustinHorton
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by JustinHorton » Mon Sep 04, 2017 6:10 pm

John Moore wrote:Erdos-Amin shows another strong GM missing the stalemate defence. Certainly, one that's worth remembering in Rook and Pawn endings.
This is hilarious (unless you're Amin) and everybody should see it.
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JustinHorton
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by JustinHorton » Mon Sep 04, 2017 7:37 pm

Christopher Kreuzer wrote:
JustinHorton wrote:And just when it was there....

....it was gone.
Was there a winning chance there? What would be the continuation after 81.Be5+ (instead of 81.Rf8)?
81 Kf3 might be an idea. I think we might need the combination of good players and computers to know whether it wins (or whether anything else does).
"Do you play chess?"
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Chris Rice
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by Chris Rice » Tue Sep 05, 2017 9:05 am

The Peter Doggers report highlights:

- The only big name to be eliminated after the first two days is Eljanov;
- The stalemate defence that Bassem missed was also once missed by Smyslov. It also stopped Bassem becoming the first Egyptian player to cross the 2700 barrier;
- Gawain did have a win and it was indeed Justin's 81 Kf3 that would have been the killer waiting move.

The ChessBase report further puts the boot in regarding Bassem's error and has a lot of intersting photos. It also notes there are 22 tie breakers today (includes David Howell and Mickey Adams). Should be fantastic entertainment but probably not much fun for the players who I noted in interviews often said that this type of event ages them.

Given that the aim is to get through to the next round for most players and draws versus lesser mortals are quite common for the top players we can expect quite a bit of turbulence with the live ratings during this tournament. Here are today's current standings with Aronian as the number 2 player in the world http://2700chess.com/

The Chess Mind report makes mention of the incredible save in the Nisipeanu-Sevian game:

"Finally, Sam Sevian really, really should have qualified, with a winning position with Black against Liviu-Dieter Nisipeanu, but he got a taste of his own medicine. Sevian is known for playing out lost positions more than a little too long, always hoping for a last cheapo. Today, he was the victim of the cheapo, as Nisipeanu swindled a draw. (A double swindle, I think, as it seems that even the "official" swindle fails to equalize.) Fortunately, the match remained even, and they'll continue to tiebreaks tomorrow."

A few Twitter quotes:

Piorun (on his loss to Hou Yifan) "Well, I've tried, guys, but... s.... happens, hope another Polish players achieve more; thanks for the support, now it is time to get rest"

Matthew Sadler (on David Howell) "Aaagh, hiding behind the sofa now! The Chess24 clock keeps on counting down to 0 in David's game!"

Wojtaszek after qualifying for Round 2: "Here any bad move and you're out!"

Gawain "Somehow in Doha. Rather further away from home than 4 hours ago but somehow quickest/cheapest way home. Sure it'd make sense with sleep."

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JustinHorton
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by JustinHorton » Tue Sep 05, 2017 10:01 am

Chris Rice wrote:Gawain did have a win and it was indeed Justin's 81 Kf3 that would have been the killer waiting move.
Maybe, but but but....

i. Doggers gives this line:
Black seems to be in Zugzwang after 81. Kf3 e.g. 81... Bg4+ 82. Ke3 Bf5 and now 83. Rf8 does work: 83... Rc6 (83... Rxc7 84. Rxf5 Rc3+ 85. Kd4) 84. Rf6 Rc4 85. Be5 Kg8 86. Rxf5 gxf5 87. Kd3 Rc6 88. Kd4 Kf7 89. Kd5 Rc2 90. Bd6 Ke8 91. Ke6 f4 92. g6 and wins.
Ok, but does he have to play 83...Rc6? Does he have to play 82...Bf5? (How about 82...Bh3.)

ii. Baburin in Chess Today 6146 gives a different line: 1.Ke3 Re4+ 82.Kf3 Rc4 83.Kf2!

He gives a for-example line: 83...Kf7 84.Ke3 Kg7 (84...Re4+ 85.Kd3 Rg4+ 86.Kc3) 85.Rf8 Rc6 (85...Rxc7? 86.Rxf5) 86.Rf6 Rc4 87.Kg3 Kg8 88.Rxf5 gxf5 89.Kd3 Rc6 90.Kd4 Kf7 91.Kd5 Rc1 92.Bf4 Rc2 93.Kd6.

If Black leaves the king on g7, and plays say 83....Bh3, I think White can get the king to the c-pawn, though I'm not going to try and prove it. However note that Black has an alternative defensive idea to covering the c-pawn, which is attacking the g-pawn with the rook and trying to win it and the c-pawn for the bishop. Can White prevent both ideas?

iii. I had a weird old time last night leaving the computer on for a few hours and finding that the evaluation went up to +3.5ish on thirty-plus half-moves and then down again to +2ish on forty-odd. (Unhelpfully I forget which precise position this was!)
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LawrenceCooper
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by LawrenceCooper » Tue Sep 05, 2017 12:48 pm

Adams 1 up, David still playing.

Jonathan Rogers
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by Jonathan Rogers » Tue Sep 05, 2017 1:05 pm

LawrenceCooper wrote:Adams 1 up, David still playing.
draw. That match has been rather a let down so far and it may have to go to armageddon.

Ivanchuk just squeezed through :lol:

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Re: 2017 World Cup 2-27 September, Tbilisi

Post by JustinHorton » Tue Sep 05, 2017 1:25 pm

Fier really had to put the work in there, but he did it.
"Do you play chess?"
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Jonathan Rogers
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by Jonathan Rogers » Tue Sep 05, 2017 2:27 pm

David looking like winning now, this (very good) fourth game has been much more like it.

LawrenceCooper
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by LawrenceCooper » Tue Sep 05, 2017 2:40 pm

Mickey has drawn to qualify but David's game ended in a draw so at least two more games to come.

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Re: 2017 World Cup 2-27 September, Tbilisi

Post by JustinHorton » Tue Sep 05, 2017 2:52 pm

González will have nightmares tonight if Harikrishna goes through.
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Re: 2017 World Cup 2-27 September, Tbilisi

Post by benedgell » Tue Sep 05, 2017 2:56 pm

Wonder if Sutovsky lost any money with Eljanov's elimination?

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