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Hot Topic (More than 10 Replies) Play the Semi Slav problem... (Read 8994 times)
Uruk
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Re: Play the Semi Slav problem...
Reply #15 - 05/03/09 at 21:36:55
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Quote:

TonyRo wrote on 04/28/09 at 19:25:09:
I can't find any suitable line to Schandorff's proposed refutations of the Botvinnik.  Sad

So what's Schandorff's refutation?


You see, having played both, I tend to be as skeptical
about refutations of the Botvinnik as of the Dragon.
  
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Smyslov_Fan
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Re: Play the Semi Slav problem...
Reply #14 - 05/03/09 at 06:23:17
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A little off-topic:

Do these Semi-Slav books cover the Cambridge Springs (D52) lines?  They are so much a part of the Semi-Slav player's repertoire that I thought some books would cover it.  Wells' book, The Complete Semi-Slav (1994) does not.

Btw:  I found much of Vigorito's line in Wells' old book with Wells suggesting that 15.Qf3 is not terribly dangerous to Black.  Back in 1994, there weren't too many examples for Wells to draw from though.
  
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Uruk
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Re: Play the Semi Slav problem...
Reply #13 - 05/02/09 at 19:13:44
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So what's Schandorff's refutation?
  
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TonyRo
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Re: Play the Semi Slav problem...
Reply #12 - 04/28/09 at 19:25:09
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I can't find any suitable line to Schandorff's proposed refutations of the Botvinnik.  Sad
  
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Fernando Semprun
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Re: Play the Semi Slav problem...
Reply #11 - 04/28/09 at 19:17:20
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I must have panicked initially, because although it looks hard to face OTB with no prep / memory, once the engines are in place black looks OK.

Problems seems that a sideline could be so dangerous OTB (Black moves seem more difficult to find to me than white's, but may be I am mistaken ... again)

I did mention that Vigorito book did not provide answers in the main line Botvinnink, but he got upset....

Funny that recently I thought it was perhaps woth checking (the lines he proposed). In the end I am with Bo Hansen: some lines are unsuitable to play below a certain level (like 2550, for example). I, for one, have no idea what is going on in the main line Botvinnik...

  
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ghenghisclown
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Re: Play the Semi Slav problem...
Reply #10 - 04/23/09 at 19:56:29
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Markovich wrote on 04/23/09 at 17:15:07:
So it seems that Smeets played suboptimally according Vigorito, whose analysis supporting Black's chances remains unchallenged.


I don't own a copy of this book, but my instincts tell me Markovich is correct. Of course, any book will have either flaws or lines that are obsolete within 6 months of publication but this should not discourage wise buyers who will look at the lines critically and compare the book lines to current practice.
  
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Re: Play the Semi Slav problem...
Reply #9 - 04/23/09 at 17:23:13
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Here's another Play the Semi-Slav problem - Schandorff's book! I really want the Botvinnik to be completely playable, but it seems that Schandorff's book completely crushes the ...Qa6 line proposed by Vigorito, as well as the normal ...Qb5 tries. What to do? Does anyone actually still play the Botvinnik and have something up their sleeve? I think Smeet's played it against Van Wely a while back, who tends to be quite prepared, so I'm wondering what he had in mind if Van Wely marched down the critical lines instead of what he played.
  
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Markovich
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Re: Play the Semi Slav problem...
Reply #8 - 04/23/09 at 17:15:07
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So it seems that Smeets played suboptimally according Vigorito, whose analysis supporting Black's chances remains unchallenged.
  
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Fernando Semprun
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Re: Play the Semi Slav problem...
Reply #7 - 04/23/09 at 16:20:22
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[Event "Wijk"]

[Date "Jan 2006"]
[White "Koneru"]
[Black "Smeets"]
[Result "1-0"]


1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. dxe6 fxe6 12. Bc2 Qc7 13. O-O Bb7 14. Ng5 Nc5 15. Qf3


Bd6 (15... O-O-O 16. Qh3 Bd6) 16. Qh3 Qd7 17. Rd1 Qe7 
18. e5 Bxe5 19. Bg6+ Kf8 
20. Be3 Ncd7 21. Nxe6+ Kg8 
22. Bc2 Re8 23. Ng5 g6 
24. Re1 Qb4 25. Rab1 Bc8 
26.Qf3 Kg7 27. Nd5 Qa5 
28. Nf4 Nf8 29. h4 Bxb2 
30. h5 h6 31. Ne4 Nxe4 
32. Bxe4 g5 33. Nd5 Ne6 
34. Bb6 Qa3 35. Re3 Qxa2 
36. Nb4 Qa4 37. Rxb2 Rhf8 
38. Qg3 Nf4 39.Rb1 Kg8 40. Bc2 Rxe3 41. Qxe3 {1-0 Koneru,H (2537)-Smeets,J (2550)/Wijk aan
Zee 2006/CBM 111} *

  
Fernando Semprun
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Smyslov_Fan
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Re: Play the Semi Slav problem...
Reply #6 - 04/21/09 at 02:24:47
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Markovich, 

You and I are thinking along the same lines tactically, and I agree that Black seems ok.  I'd like to see how Koneru won.
  
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Fernando Semprun
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Re: Play the Semi Slav problem...
Reply #5 - 04/20/09 at 20:51:57
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Sorry, I had no replies for so long... I'll post something soon...(busy right now...)
  
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Re: Play the Semi Slav problem...
Reply #4 - 04/19/09 at 16:33:25
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Matemax wrote on 04/19/09 at 15:53:11:
What happens after the obvious 20...Qc3?


I looked at it and Black seems safe enough after 21.axb3 Kb8.  I'm not sure what White has then besides 22.Bf4 Ka7 23.Bxe5 Qxe5 24.Qe3+ Kb8 25.Nxd8 Rxd8 26.f3, which looks pretty even to me.

White could also try 21.Nxd8 Kd8 22.bxc3, but then 22...Qc8 appears to be pretty good for Black.
  
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Re: Play the Semi Slav problem...
Reply #3 - 04/19/09 at 15:53:11
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What happens after the obvious 20...Qc3?
  
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Re: Play the Semi Slav problem...
Reply #2 - 04/17/09 at 23:39:40
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Fernando Semprun wrote on 04/09/09 at 18:55:20:

white improves with 20.Ne6 and it is all very difficult.




Difficult?  It's a bloody mess!  I have no idea what's going on in the resulting position.  Thanks for a fascinating problem to work on this weekend!

Cheers!
  
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Fernando Semprun
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Re: Play the Semi Slav problem...
Reply #1 - 04/09/09 at 19:11:07
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Oops, sorry the initial moves could be

[[White "Meran 10.d5"]

[ECO "D48"]
[Annotator "Semprun,Fernando"]

[SourceDate "2009.04.09"]

1. d4 d5  2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. dxe6 fxe6 12. Bc2 Qc7 13. O-O Bb7 14. Ng5 Nc5 15. Qf3


  
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