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Very Hot Topic (More than 25 Replies) The North Sea Defence (Read 24431 times)
Leon_Trotsky
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Re: The North Sea Defence
Reply #38 - 04/09/19 at 04:04:45
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Well Tal did not play Latvian Gambit that often because he was Latvian  Cheesy but maybe Carlsen thinks that it is interesting.

I highly doubt that he would play it in for example, World Championship, but in rapid why not. Even in a slow game, as an occasional opening it could be worth a try.

In a very big open if you are around even 2500 2600 GM, playing it once or twice in a must win game would at the very least give you time on the clock.
  
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LeeRoth
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Re: The North Sea Defence
Reply #37 - 04/08/19 at 15:49:59
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US GM Timur Gareyev has been playing it in open tournaments.  Nepo and Rapport have also messed around with it, mainly in blitz.  Notwithstanding Magnus's apparent "endorsement" (in quotes because, given his comments, I'm not sure he thinks its any good.  Maybe he feels obligated to play it since its also known as the Norwegian Rat), I would not play it in a real game. 

It is, however, fun to play in blitz and bullet.  I've just been goofing around -- no real proper study -- but seems to me that 3.Nc3 d5 (3..d6 would be a Pirc) 4.e5 Ne4 is better for White.  In the main lines after 3.e5 Nh5, I've generally done OK when White's played 4.Be2 5.Bxh5.  Don't know that its any good, but its messy and there's chances.  Things get more difficult when White plays to restrict the Nh5 (g7) rather than take it.  I have so far found 4.Nf3/5.h3 to be the most annoying.   
  
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Leon_Trotsky
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Re: The North Sea Defence
Reply #36 - 04/06/19 at 23:36:01
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Thanks therefore. I dare say that this seems quite playable on over the board classical games.

Perhaps next big open tournament a 2500+ will play it  Cheesy
  
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an ordinary chessplayer
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Re: The North Sea Defence
Reply #35 - 04/06/19 at 18:25:11
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I don't have the book, and searching online I wasn't able to find a copy anywhere. The information was from the chessville.com review. I'm not sure Bickford's book is worth hunting down, instead you could just use a database, some online resources, and your own analysis. Quote:
The North Sea Variation of the Modern Defense is understandably much heavier on the numerous illustrative games, than on exhaustive analysis ... (Kennedy's emphasis).
-- Rick Kennedy, chessville.com, link at #31
Quote:
It's essentially a game collection ordered according to variation, and contains ideas for black to all logical white replies.
-- lefthandsketch, brooklyn64.com, http://brooklyn64.com/2010/the-modern-north-sea-variation/


Bickford's table of contents, cribbed from schachversand.de
01 Introduction
History
Outline
References
07 Part 1: Early Alternatives
Variation 1-A: 4 c4
Variation 1-B: 4 f4
Variation 1-C: 4 g4
21 Part 2: 4 Bc4 d5
Variation 2-A: 5 Bd3
Variation 2-B: 5 Be2
27 Part 3: 4 Nf3
Variation 3-A: 4...d5
Variation 3-B: 4...d6
39 Part 4: 4 Nc3 d5
Variation 4-A: Bd3
Variation 4-B: Be3
Variation 4-C: Nf3
Variation 4-A: 5 f4
Variation 4-B: 5 g4
51 Part 5: Nc3 d5 5 Be2
Variation 5-A: 5...Nc6
Variation 5-B: 5...Ng7
61 Part 6: 4 Be2 Ng7
Variation 6-A: 5 Bh6
Variation 6-B: 5 Nf3
69 Part 7: 4 Be2 d6
Variation 7-A: 5 f4
Variation 7-B: 5 Nf3
Main Line
4 Be2 d6 5 Bh5 gh5 6 Qh5 de5
77 Part 8: 7 de5 Qd5 8 Nf3 Qe4 9 Be3 Qc2
Variation 8-A: 10 Nc3
Variation 8-B: 10 0-0
85 Part 9: 7 Qe5 Rg8
Variation 9-A: 8 c3
Variation 9-B: 8 Bf4
Variation 9-C: 8 Ne2
Variation 9-D: 8 Qe4
https://www.schachversand.de/en/the-north-sea-variation-of-the-modern-defence.ht...

I attached the 13 games (1988-2010) from brooklyn64.com. A quick check of ChessBase online for the first five games found them all, I suppose the other eight are in there as well.
  

B06-NorthSea-2010_001.pgn ( 7 KB | 21 Downloads )
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Leon_Trotsky
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Re: The North Sea Defence
Reply #34 - 04/05/19 at 23:35:07
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Just curious, how did you get that North Sea book ¿ It looks like publisher's website does not work anymore.
  
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LeeRoth
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Re: The North Sea Defence
Reply #33 - 04/05/19 at 19:03:27
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kylemeister wrote on 04/02/19 at 21:10:39:
an ordinary chessplayer wrote on 04/02/19 at 20:39:01:
The North Sea could just be Carlsen fooling around, was he playing for money? And for those of us who, due to work restrictions, cannot access youtube, could you post some of the moves?

It's "Banter Blitz" -- Carlsen has within about the last month joined the ranks of people doing that.  4. Be2 d6 5. ed Qxd6 6. Nc3.  Here he said he couldn't remember the theory, and took over a minute to play 6...Nf6.



Interestingly, that game transposed into a ..Qd6 Scandinavian where Black was fine.  6..Bg7 had been played before.
  
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an ordinary chessplayer
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Re: The North Sea Defence
Reply #32 - 04/04/19 at 05:31:06
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Curiosity got the better of me and so I purchased Harding's UltraCorr2019 database from chessmail.com. Stern - Hjorth, SSKK Bulletinen 40 Years 1993 is indeed found there, with annotations by Dieter Stern.
  
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an ordinary chessplayer
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Re: The North Sea Defence
Reply #31 - 04/02/19 at 23:12:52
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The following link was posted on the English Chess Forum at the time of Adams - Carlsen.
http://chessville.com/reviews/NorthSeaVariationModernDefence.htm

Jim Bickford (2007 Syzygy Publishing Inc.) The North Sea Variation of the Modern Defense (ECO B06)
Reviewed by Rick Kennedy
https://web.archive.org/web/20100927182127/http://chessville.com/reviews/NorthSe...

Although light on analysis the review has good background and some bibliographic value. It also quotes the key, according to Harding, game Stern - Hjorth, corr 1994. The Harding article is also not available online, but his analysis might be available on one of his correspondence disks.

A little off topic ...
https://woodsmokeblog.wordpress.com/2019/01/26/on-rolf-martens-1942-2008/

  

SternHjorth.pgn ( 0 KB | 6 Downloads )
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kylemeister
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Re: The North Sea Defence
Reply #30 - 04/02/19 at 21:10:39
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an ordinary chessplayer wrote on 04/02/19 at 20:39:01:
The North Sea could just be Carlsen fooling around, was he playing for money? And for those of us who, due to work restrictions, cannot access youtube, could you post some of the moves?

It's "Banter Blitz" -- Carlsen has within about the last month joined the ranks of people doing that.  4. Be2 d6 5. ed Qxd6 6. Nc3.  Here he said he couldn't remember the theory, and took over a minute to play 6...Nf6.

  
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an ordinary chessplayer
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Re: The North Sea Defence
Reply #29 - 04/02/19 at 20:39:01
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The North Sea could just be Carlsen fooling around, was he playing for money? And for those of us who, due to work restrictions, cannot access youtube, could you post some of the moves? Sielecki said white just needed to avoid 4.Be2, he gave 4.Nf3 and simple (of course!) chess as leading to some plus.

Here is a working link to Stefan Buecker's article mentioned in #14. His "Main Line" follows 4.Be2, but in the note at move four he says 4.Nf3 "can even be considered as the main line".

The North Sea Defense (May 2008)
https://web.archive.org/web/20101205134856/http://www.chesscafe.com/text/kaiss33...
  
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LeeRoth
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Re: The North Sea Defence
Reply #28 - 04/02/19 at 16:36:00
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It's perhaps time to revitalize this discussion.

Magnus just played this a couple of times in on-line blitz.

Here's an example against a strong player:
https://www.youtube.com/watch?v=tGL1C-AjbCI

Anyone know the latest theory or source?
  
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Stefan Buecker
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Re: The North Sea Defence
Reply #27 - 12/31/15 at 08:58:04
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Magnus Carlsen's blog is still available, but the other three links given in this thread are all broken. Tells us a lesson about the modern media. It is a pity, in particular, that Rolf Martens' online debate of his ideas are gone (and yes, I've checked "waybackmachine").

In the following game, 7...Qd5 was already recommended by Martens and correctly assessed as equal. 10....Qg6 = was more precise. After Black misses 20...Nc5 (=), he gets into trouble.

  
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Re: The North Sea Defence
Reply #26 - 10/18/14 at 09:56:59
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Neil McDonald in his October 2014 Update:

Quote:
The North Sea Defence is a curious hybrid of the Modern and Alekhine Defence. What revitalises the system for Black is that after 1.e4 g6 2.d4 Nf6 3.e5 Nh5 4.Be2 Black can play 4...d6! ignoring the threat to h5

Yes, and that's why 4...d6! was already given by Martens and strongly recommended ("!") and analyzed in my article in Schach-Report 10/1991, p. 31. By the way, this move is connected with another pleasant memory. I won with it against Mephisto Lyon 68030 at the Dortmund tournament, division D 1991. Hey kids, these were the days when board chess computers were still permitted to compete in tournaments!

According to the person who executed the moves for the computer on the board, none of my moves was predicted by the machine. Smiley
  
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Re: The North Sea Defence
Reply #25 - 10/01/10 at 12:17:15
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A bit off-topic, but in Round 10 Carlsen played 5...Bb4 in the Main Line Advance Caro-Kann.
  

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Re: The North Sea Defence
Reply #24 - 10/01/10 at 09:53:06
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Nice to see one of Marten's ideas played on the top level, but it usually ends like it did, even though the idea looks reasonable. I'd guess that it's the lack of theory and practice that makes it hard to fine tune the play.

Btw, a strong local Northsea expert, suggested Qxd6!? instead, aiming for Nh5-f4 when appropriate. Maybe something for Gawain to take a look at, in next month's edition...
  
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