World Cup Knockout 2019

The very latest International round up of English news.
Post Reply
User avatar
JustinHorton
Posts: 6437
Joined: Mon Aug 04, 2008 10:06 am
Location: Somewhere you're not

Re: World Cup Knockout 2019

Post by JustinHorton » Sat Sep 14, 2019 12:37 pm

Looking at McShane - Yuffa, I wonder how many theoretical variations see Black knights developed directly to e7 and d7. The Hippo, presumably, and there's a line against the Reti/KIA which I seem to recall being recommended in the recent Chess Stars book, but is there much more significant than that?
"Do you play chess?"
"Yes, but I prefer a game with a better chance of cheating."

lostontime.blogspot.com

User avatar
JustinHorton
Posts: 6437
Joined: Mon Aug 04, 2008 10:06 am
Location: Somewhere you're not

Re: World Cup Knockout 2019

Post by JustinHorton » Sat Sep 14, 2019 12:39 pm

JustinHorton wrote:
Fri Sep 13, 2019 2:26 pm
Nepo held with White by Predke.
And struggling with Black today, after 17 moves
"Do you play chess?"
"Yes, but I prefer a game with a better chance of cheating."

lostontime.blogspot.com

Jonathan Rogers
Posts: 3868
Joined: Tue Nov 18, 2008 9:26 pm

Re: World Cup Knockout 2019

Post by Jonathan Rogers » Sat Sep 14, 2019 1:14 pm

still messy though. I am more confident that Naka will be packing his bags tonight

Jonathan Rogers
Posts: 3868
Joined: Tue Nov 18, 2008 9:26 pm

Re: World Cup Knockout 2019

Post by Jonathan Rogers » Sat Sep 14, 2019 2:09 pm

Both Brits in the playoffs, then. Still almost impossible to call Gawain's match. One assumes that Luke is favourite against almost anyone in this tie break formula but I for one really don't know anything about his opponent; does anyone? (DON'T JUST LOOK UP CAREER STATS!! WE HAVE BEEN HERE BEFORE!) Whoever he is, he certainly has confidence, to judge from some way back that he could get away with ...Rxe2 and ...Rxb2 today

User avatar
JustinHorton
Posts: 6437
Joined: Mon Aug 04, 2008 10:06 am
Location: Somewhere you're not

Re: World Cup Knockout 2019

Post by JustinHorton » Sat Sep 14, 2019 2:46 pm

We Yi seems to be winning with Black against Antón, who won with Black yesterday
"Do you play chess?"
"Yes, but I prefer a game with a better chance of cheating."

lostontime.blogspot.com

David Sedgwick
Posts: 3461
Joined: Mon Apr 09, 2007 5:56 pm
Location: Croydon

Re: World Cup Knockout 2019

Post by David Sedgwick » Sat Sep 14, 2019 3:06 pm

JustinHorton wrote:
Sat Sep 14, 2019 12:39 pm
JustinHorton wrote:
Fri Sep 13, 2019 2:26 pm
Nepo held with White by Predke.
And struggling with Black today after 17 moves
Jonathan Rogers wrote:
Sat Sep 14, 2019 1:14 pm
still messy though. I am more confident that Naka will be packing his bags tonight
Brilliant prediction, Jonathan

Keith Arkell
Posts: 697
Joined: Tue Dec 30, 2008 2:10 am

Re: World Cup Knockout 2019

Post by Keith Arkell » Sat Sep 14, 2019 5:48 pm

David Sedgwick wrote:
Sat Sep 14, 2019 10:52 am

I believe that it was long thought to be drawn, until 5 man endings were solved by computer in the mid 1980s.

Lagarde never reached a position which was winning in less than the remainder of the 50 moves, but he got closer than Yuffa did.
Still on the subject of BB v N wasn't there a game - perhaps from a British Championship in the late 80s or maybe '90 or '91 - in which Julian Hodgson held the draw v James Howell?

Jonathan Rogers
Posts: 3868
Joined: Tue Nov 18, 2008 9:26 pm

Re: World Cup Knockout 2019

Post by Jonathan Rogers » Sat Sep 14, 2019 7:26 pm

1990. They also played in 1991 but that was part of Hodgson's 5/5 start which led to his first title.

Paul Cooksey
Posts: 436
Joined: Fri Oct 21, 2016 4:15 pm

Re: World Cup Knockout 2019

Post by Paul Cooksey » Sat Sep 14, 2019 10:25 pm

That wasn't BBvN though. I do see a Hodgson-King BBvN where Danny defended successfully.

Craig Pritchett
Posts: 85
Joined: Mon Nov 29, 2010 7:54 pm

Re: World Cup Knockout 2019

Post by Craig Pritchett » Sat Sep 14, 2019 11:17 pm

For the historic record: the defensive technique (N v BB) used most clearly in the Arkell-Lagarde game was all known and published at least as far back as the 1960s. The key endgame bible then was Cheron's work. You place N on a fianchetto square, say g7; then if your K can safely reach f7/g6, the win is extremely difficult. The defence can get turfed out but then K+N should rush to set up the same position in another corner. Before the tablebases, this endgame was thought by the Cheron bible to be a stone-cold draw.

I saved N v BB against Miroslav Filip (twice a world championship Candidate) at the Siegen Olympiad 1970 (10-20 or so years before the surprise tablebase analysis). The game was adjourned, Scotland had Cheron with us and I was prepared to play exactly as Keith did. The Czechs told us that poor Filip spent hours in overnight analysis but couldn't work it out, though he believed it had been shown to be a theoretical draw … critically he didn't get hold of Cheron!

On resumption, he apparently recalled the 'drawing' method, which I immediately set up in one corner, and offered an immediate draw as it was clear that I knew what I was doing. He didn't even bother chasing me at least to a second corner.

The Czechs all had a team laugh about all this. Even today this endgame is still a tough one for both sides … over the board 'only', of course!

Richard Bates
Posts: 2900
Joined: Fri Nov 14, 2008 8:27 pm

Re: World Cup Knockout 2019

Post by Richard Bates » Sun Sep 15, 2019 3:55 am

Paul Cooksey wrote:
Sat Sep 14, 2019 10:25 pm
That wasn't BBvN though.
It was. Round 5 1990.

User avatar
JustinHorton
Posts: 6437
Joined: Mon Aug 04, 2008 10:06 am
Location: Somewhere you're not

Re: World Cup Knockout 2019

Post by JustinHorton » Sun Sep 15, 2019 8:02 am

Craig Pritchett wrote:
Sat Sep 14, 2019 11:17 pm

I saved N v BB against Miroslav Filip (twice a world championship Candidate) at the Siegen Olympiad 1970
Game
"Do you play chess?"
"Yes, but I prefer a game with a better chance of cheating."

lostontime.blogspot.com

Paul Cooksey
Posts: 436
Joined: Fri Oct 21, 2016 4:15 pm

Re: World Cup Knockout 2019

Post by Paul Cooksey » Sun Sep 15, 2019 11:12 am

Richard Bates wrote:
Sun Sep 15, 2019 3:55 am
Paul Cooksey wrote:
Sat Sep 14, 2019 10:25 pm
That wasn't BBvN though.
It was. Round 5 1990.
I stand corrected, having now downloaded it from Britbase. As does chessbase, which gave the game drawn after move 14 rather than 142

User avatar
JustinHorton
Posts: 6437
Joined: Mon Aug 04, 2008 10:06 am
Location: Somewhere you're not

Re: World Cup Knockout 2019

Post by JustinHorton » Sun Sep 15, 2019 12:07 pm

Both English players fighting to save rook endings a pawn down: Gawain at least (after 58 moves) looks to be failing in that endeavour.
Last edited by JustinHorton on Sun Sep 15, 2019 12:09 pm, edited 1 time in total.
"Do you play chess?"
"Yes, but I prefer a game with a better chance of cheating."

lostontime.blogspot.com

Jonathan Rogers
Posts: 3868
Joined: Tue Nov 18, 2008 9:26 pm

Re: World Cup Knockout 2019

Post by Jonathan Rogers » Sun Sep 15, 2019 12:09 pm

yes, I think Luke's is tenable, and Gawain at least has White in the return

Post Reply