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Hot Topic (More than 10 Replies) 1. f4 - The Polar Bear System (Read 28757 times)
le_gars
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Re: 1. f4 - The Polar Bear System
Reply #23 - 02/12/08 at 08:11:35
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DoubledPawns wrote on 02/10/08 at 11:36:17:
What does Henrik recommend against 1...c5, intending to transpose to a favourable Sicilian after 2.e4? I think that his recommendation would be 2.Nf3, but then Black can switch to a KID setup with 2...Nf6, ...g6 and ...Bg7, which looks fine for Black.



Against 1...c5 Danielsen usually goes into a closed Sicilian (with Nc3, g3, Bg2, etc...)
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #22 - 02/11/08 at 12:15:05
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Viking wrote on 02/10/08 at 08:43:39:
There are no polar bears on Iceland....

That is right but I think Danielsen wanted a name that is easily associable with this region (polar circle, Greenland, Iceland and all those northern cold places)
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Re: 1. f4 - The Polar Bear System
Reply #21 - 02/11/08 at 10:42:53
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TalJechin wrote on 02/10/08 at 17:46:21:
Btw, isn't the set-up c3,d3,f4,g3,Bg2,0-0 vaguely reminiscent of a polar bear in silhouette?


At least, one who *really* understands chess here!
  
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TalJechin
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Re: 1. f4 - The Polar Bear System
Reply #20 - 02/10/08 at 17:46:21
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Viking wrote on 02/10/08 at 08:43:39:
There are no polar bears on Iceland....


He may have named it when he was living in Greenland teaching chess, a few years before moving to Iceland.

Btw, isn't the set-up c3,d3,f4,g3,Bg2,0-0 vaguely reminiscent of a polar bear in silhouette?
  
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DoubledPawns
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1.a3 e5 2.Nc3 Ba3 3.Ne4
Bf8 4.Ra5 Ke7 5.Re5#

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Re: 1. f4 - The Polar Bear System
Reply #19 - 02/10/08 at 11:36:17
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What does Henrik recommend against 1...c5, intending to transpose to a favourable Sicilian after 2.e4? I think that his recommendation would be 2.Nf3, but then Black can switch to a KID setup with 2...Nf6, ...g6 and ...Bg7, which looks fine for Black.
  

Wise men talk because they have something to say; fools, because they have to say something - Plato
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Viking
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Re: 1. f4 - The Polar Bear System
Reply #18 - 02/10/08 at 08:43:39
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There are no polar bears on Iceland....
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #17 - 02/10/08 at 08:35:48
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Henrik Danielsen says he has develop a new system on his own (the Leningrad Bird) and, as he is living in Iceland he called it the Polar Bear System.
You have the same think with the Benko/Volga gambit or with the Aleppo/Queen's gambit.
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Re: 1. f4 - The Polar Bear System
Reply #16 - 02/09/08 at 13:51:16
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Why is this called The Polar Bear System?

Isn't it just a Bird Opening?  Undecided
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #15 - 02/07/08 at 18:55:30
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Raphael wrote on 02/07/08 at 16:02:12:
The videochess.net site is up again.  Smiley
No idea what happened, no comment, no nothing.
Maybe just a problem of the provider. However, the site has been terribly inactive in the last months or so. No idea if the ebook on the polar bear ever will appear, or not. Still a great site.

Thanks for the good news  Smiley
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Raphael
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Re: 1. f4 - The Polar Bear System
Reply #14 - 02/07/08 at 16:02:12
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The videochess.net site is up again.  Smiley
No idea what happened, no comment, no nothing.
Maybe just a problem of the provider. However, the site has been terribly inactive in the last months or so. No idea if the ebook on the polar bear ever will appear, or not. Still a great site.
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #13 - 02/06/08 at 12:49:28
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Maybe does Iceland not exist any more, it has all gone under water??
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Raphael
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Re: 1. f4 - The Polar Bear System
Reply #12 - 02/06/08 at 12:34:22
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The home of the polar bear is gone!

Yesterday I just made the same observation. No idea what this means. Hope it comes back. Nice work.
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #11 - 02/06/08 at 11:29:49
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By the way, I have tried today twice to have a look at www.videochess.net and the connection was refused at both attempts. I got this message:
Network Error (dns_unresolved_hostname)
Your requested host "www.videochess.net" could not be resolved by DNS.
For assistance, contact your network support team

Is it my connection or is there something wrong happening with videochess?
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Re: 1. f4 - The Polar Bear System
Reply #10 - 02/05/08 at 11:26:33
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Out of my head:

I think Ne5 is interesting. Maybe not good enough for an advantage, but black is very restricted in his play. And white will have a longlasting space advantage, without risk. I score quite well in similar positions.

It is hard to analyse, but I think you can also grind down blacks center with b4 / c4 breaks. Since e6 is not really doing much to improve blacks position, other then making the f5 break more difficult.
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #9 - 02/05/08 at 06:42:03
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I'd say white should prepare an e4 "break" and try to take control of the e-row. After this, idea's such as coming to c4 with the knight a3 and making use of the weakened dark squares should be examined.
I have rarely met systems where black is playing e6 and g6 and for so far I remember white just has to be patient: as said black has weakened dark squares, his bishop on c8 is entombed and so it will not be so easy to connect the rooks.
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Re: 1. f4 - The Polar Bear System
Reply #8 - 02/04/08 at 09:53:26
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Hi,
I am wondering what would be best in the main line polar bear system when black plays 8 . ... e6 avoiding a main idea for white the f4- f5 break. GM Danielsen is not (yet) commenting this move in his videos.
The line goes:
1.f4 d5 2.Nf3 g6 3.g3 Bg7 4.Bg2 Nf6 5.0-0 0-0 6.d3 c5 7.c3 Nc6 8.Na3
8...e6
-Qc2 or Qe1 with the idea e2-e4 or
-Rb1 with the idea b2-b4?
-Or something else.
What do you think?
Greetings
Ralf
  
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #7 - 12/06/07 at 08:03:47
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What is happening with videochess.net? They wrote their e-book could be available against the end of the (this?) year but till now, no new information about it.
Some days ago, I wrote an e-mail to them asking which datum we could expect for this e-book to be out but no answer  Cry
Does someone know more?
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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thibdb13
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Re: 1. f4 - The Polar Bear System
Reply #6 - 09/12/07 at 10:53:18
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Black_Widow wrote on 02/23/07 at 21:48:45:
What about:
1. f4 d5 2. Nf3 Bg4 3. e3 Nd7 4. h3 Bxf3 5. Qxf3 e5 $6 6. Qxd5 Qh4+ 7. Kd1 O-O-O 8. fxe5 Qe7 9. Qa5 Kb8 10. d4
Nxe5 11. Bd2 this looks pretty solid to me for white. Black still has to prove his compensation for the pawn and the bishop pair. I do not understand why Kramnik played 10 Nc3 and 11 Qa4.


He was young and unexperimented Cheesy
  

Yusupov once said that “The problem with the Dutch Defence is that later in many positions the best move would be ...f5-f7” but he is surely wrong.
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Re: 1. f4 - The Polar Bear System
Reply #5 - 02/23/07 at 21:48:45
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What about:
1. f4 d5 2. Nf3 Bg4 3. e3 Nd7 4. h3 Bxf3 5. Qxf3 e5 $6 6. Qxd5 Qh4+ 7. Kd1 O-O-O 8. fxe5 Qe7 9. Qa5 Kb8 10. d4
Nxe5 11. Bd2 this looks pretty solid to me for white. Black still has to prove his compensation for the pawn and the bishop pair. I do not understand why Kramnik played 10 Nc3 and 11 Qa4.

Or refuse the gambit with 6. Nc3 c6 7. d3 Ngf6 8. Bd2 Qb6 9. O-O-O. White does not have a lot, but still the bishop pair. I think this would now nicely fit Kramniks style.
  
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Re: 1. f4 - The Polar Bear System
Reply #4 - 02/23/07 at 16:38:24
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In one of his videos, Danielsen quickly says he analysed this variation with fritz and he doesn't think it s good for black.
But unfortunately, he doesn t say more about it..  Cry
  
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Re: 1. f4 - The Polar Bear System
Reply #3 - 02/23/07 at 13:44:40
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If you follow his variation you have to like with white : 1.f4 d5 2.Nf3 Bg4 3.e3 Nd7 4.h3 BxN 5.QxB e5!? 6.Qxd5 Qh4+ 7.Kd1 0-0-0
  
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Re: 1. f4 - The Polar Bear System
Reply #2 - 02/10/07 at 00:59:25
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I looked to all of them. Great, to hear a specialist talk! I hope to see much more in the future. By the way, is he still planning to write a book about 1. f4? I still am looking forward to that.
  
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Re: 1. f4 - The Polar Bear System
Reply #1 - 02/09/07 at 08:41:48
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Great news, I am very courious what he has to say. I have something nice to do in the weekend.
  
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1. f4 - The Polar Bear System
02/07/07 at 10:07:39
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As exponents of 1.f4 know, GM Henrik Danielsen is one of the leading experts in developing theory and playing 1.f4. Now he has started a series of video lectures about this opening and you can follow those on www.videochess.net .

I would recommend that you start by watching these vidoes first:

http://www.youtube.com/watch?v=OFfQASWu-Bk

and

http://www.youtube.com/watch?v=RoOHRP44ub4

These are sort of an introduction to the various replies to 1.f4. His name "The Polar Bear System" refers to 1.f4 as a system for white.

Then there are vidoes up focusing on white's answer to 1.f4 d5 2.Nf3 Bg4

http://www.youtube.com/watch?v=UJ4d3d-yGRc

And then you can follow the links for #2-#7.

GM Danielsen will then add further videos in the near future and I will probably be adding some as well as Henrik is my good friend and has taught me some ideas and I have played some games with 1.f4. If you have any questions please fire away and lets make this thread a forum to exchange ideas in the Bird/Polar Bear System.

regards,

Ingvar Johannesson(FM),
Iceland
  
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