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Very Hot Topic (More than 25 Replies) The North Sea Defence (Read 30638 times)
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Re: The North Sea Defence
Reply #8 - 06/27/05 at 03:42:16
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4... Ng7!? Seems too provocative, even for most Alekhine players!


Not really. I've played 1.e4 Nf6 2.Nc3 d5 3.e5 Ne4 4.Nce2 Nc5 5.d4 Ne6 6.f4 g6 7.Nf3 Ng7 a few times. I still haven't lost a game from this position. Perhaps it should be called the knight's tour variation.  Grin
  

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Re: The North Sea Defence
Reply #7 - 06/27/05 at 01:23:30
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According to latest NIC, russian team championship'05 saw Morozevich doing a knight fianchetto 1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 Ng7!? (Burmakin-Morozevich). He managed to draw.

Seems too provocative, even for most Alekhine players!
  
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MNb
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Re: The North Sea Defence
Reply #6 - 06/26/05 at 22:26:55
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Maybe I have missed it on the Swedish thread (178 posts! Unbelievable), but after 1.e4 g6 2.d4 Sf6 3.e5 Sh5 4.Le2 d6 5.f4 c5! 6.dxc5 Da5+ 7.Nc3 looks better to me than 7.Bd2.
7.Nc3 dxc5 8.Nf3 Bh6 9.Ng5 might be critical.
7.Nc3 dxe5 8.fxe5 Qxc5 9.Qd5 Qb6 10.Bc4 e6 11.Qb5+ Nd7 12.Nf3 looks like a solid += to me.
TJ, you may translate this in Swedish, if you think these lines are worth it.
  

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TalJechin
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Re: The North Sea Defence
Reply #5 - 06/26/05 at 17:35:23
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Did I guess right that "dragomkastning" means "Zugumstellung"/"move order transposition"?


Quite right! Smiley

Generally speaking you're not missing too much from not knowing swedish, as the forum visitors often get out of line or order... Grin

Basically one guy, Mikael Johansson (no relative of mine btw), with about +2300 says he has a refutation but won't show it - sounds familiar from the dragon forum here,, doesn't it? Cheesy - but he offered to play a side bet match against Martens 'proving' his refutation, which was not accepted, as Martens is only interested in the teoretical side. This nonmatch lead to a lot of speculation and so forth...

At the moment they're mostly debating the Sicilian Left Hook variation in another thread, which is of course another Marten's invention:

1.e4 c5 2.Sf3 Sc6 3.d4 cxd4 4.Sxd4 Sh6!?N - if I remember correctly, Rolf M. won the Swedish blitz championship largely thanks to this variation in 1986 or there abouts. As far as I know it has never been played in a longer tournament game, like so many of RM's many other ideas...

So far MJ claims 5.Bxh6 gxh6 6.c3 +/- while the rest of us seem to believe in = / =+ It will be interesting to see who wins, if any...  Cheesy  Undecided
  
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Re: The North Sea Defence
Reply #4 - 06/26/05 at 17:13:06
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Did I guess right that "dragomkastning" means "Zugumstellung"/"move order transposition"? 


Yes.
  

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Re: The North Sea Defence
Reply #3 - 06/26/05 at 13:33:22
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Sounds interesting!
I think I will even let my beloved dragon take a rest (!) and try this on the internet . I will tell you what my experiences were.
The thread in the Swedish forum seems to be very interesting, unfortunately I don't speak this language.
Did I guess right that "dragomkastning" means "Zugumstellung"/"move order transposition"?  Cheesy
  
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TalJechin
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Re: The North Sea Defence
Reply #2 - 06/26/05 at 03:34:50
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Funny you should ask, since Martens' latest entry at (http://www.schackforum.se/_forum/Visa?k_id=x18802&cb_do=visa&cb_id=2046&cb_page=...)

deals with this:

      After 1.e4 g6 2.d4 Sf6 3.e5 Sh5 4.Le2 d6 5.f4 c5!

if  6.dxc5 Da5+ 7.Ld2 Dxc5 8.exd6 Dxd6 9.Lxh5 gxh5 10.Dxh5 Dc6=. - Then someone suggested 10...Rb8 instead, using the bishop pair after 11.De2 Da6 12.Dxa6 Sxa6 13.Kf2 Lf5 15.c3 Sc5! + 0-0-0 'and black is better'.

---------------------------------------------------------------------

Unfortunately, the whole site the link above goes to, has recently been cancelled as the webmaster got fed up with policing the forum...
« Last Edit: 07/17/05 at 03:07:22 by TalJechin »  
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MNb
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Re: The North Sea Defence
Reply #1 - 06/25/05 at 20:57:12
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A similar idea is known in the Semi-Accelerated Dragon: 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 5.Nxc6 bxc6 6.e5 Nh5!?
I have come to the conclusion, that simple development here with 7.Be2 gives White a solid edge, not with the intention to exchange on h5 as soon as possible.
Comparing with the North Sea Defence though (I love that name, the Netherlands have beautiful North Sea beaches, which alas are to crowdy on hot days), it seems as if the White knight on g1 in stead of d4 benefits Black.
What about 1.e4 g6 2.d4 Nf6 3.e5 Nh5 4.Be2 d6 5.f4 dxe5 6.fxe5 Nc6 7.f3 Bf5 8.Be3 ?
  

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TalJechin
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The North Sea Defence
06/25/05 at 04:10:48
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Lately I've followed a thread at a swedish forum with Martens defending his (and Gerard Welling's)  invention, The North Sea Defence:

1.e4 g6 2.d4 Nf6!?

and now either

A) 3.Nc3 d5 4.e5 Nh5

or

B) 3.e5 Nh5 e.g. 4.Be2 d6!

It's also playable against 2.Nc3 e.g. 2...Nf6 3.e5 Nh5 4.Be2 Nf4! 5.Bf3 c5=

I suspect that A) with something like 5.g4 (or 5.Be2-f3) Ng7 6.Bg2 with an edge due to the k-side space advantage is the best white can do.

So, what do people here say, have you seen or heard of any refutation or have any ideas how to smash this interesting but annoying defence?
  
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