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Very Hot Topic (More than 25 Replies) The Tarrasch in Black and White (Read 60898 times)
Djy
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Re: The Tarrasch in Black and White
Reply #267 - 06/03/10 at 17:06:55
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After 7.-Be6 8.g3 Probably 8...Rc8 is more presise than Be7
9.Qa4 (9.Bg2 Ng4 10.Bd4 Nd4 11.Nd4 Bc5 12.e3 Nf6)Nd7 10.b4
Qf6 11.Bd2 b6

after 10.h3 there plenty intersting moves (Rc8, Re8 and maybe Qa5 too
after 10....Qa5 11.Qa5 (11.a3 Qa4 12.Na4 Ne4 13.b4 Bf6 14.g4 d4)11....Na5 12.Bd4 Rac8 13.e3 Bc5 14.Bc5 Rc5 15.Bd3 Nc4
  
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Stefan Buecker
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Re: The Tarrasch in Black and White
Reply #266 - 06/03/10 at 15:26:34
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Thanks! If I can understand enough of the book, I'll write a review. Btw, my dark hint in post #109 refers to 14.Qb5! a6 15.Qb3, and the gained tempo a7-a6 is a serious disadvantage for Black. But I never found the time to check it. Would be nice if it were correct.
  
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Ametanoitos
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Re: The Tarrasch in Black and White
Reply #265 - 06/03/10 at 15:09:04
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I'll send you a copy to thank you for your contribution. At least in this book there will be brand new material that will raise some discussions. This variation is an example. Interesting chess, unclear theoritical verdict, funny stuff and above all good practical chances.
  
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Stefan Buecker
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Re: The Tarrasch in Black and White
Reply #264 - 06/03/10 at 14:25:57
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Ametanoitos wrote on 06/03/10 at 14:00:04:
(16. Ndxb5 Bd7 17. Rxd5 Nf6 18. Nxa7 Bxa4 19. Nxc8 Nxd5 20. Nxa4 Nc3 21. Nxc3 [...] 

There is also 21.Nxc5!. But it is true that Black has some alternatives, and it isn't sure that Re8 is best. - Good luck with the book.
  
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Re: The Tarrasch in Black and White
Reply #263 - 06/03/10 at 14:13:07
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A strong friend of mine suggested 15.Qb3 but after 15...Qd7 16.O-O Nf6 17.e3 a6 Black seems OK and has some ...b5 ideas. Leaving the Rook on f8 seems logical anticipating the Nxe6 fxe6. I don;t know for sure but this looks OK for Black
  
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Re: The Tarrasch in Black and White
Reply #262 - 06/03/10 at 14:00:04
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I don't like 10...Re8 to much.

How about this idea?

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Nc3 Nc6 6. dxc5 Nf6 7. Be3 Be6 8.Qa4 Be7 9. Rd1 O-O 10. a3 Qc8 11. g3 Ng4 12. Bd4 Nxd4 13. Nxd4 Bxc5 14. Bg2 Rb8
15. O-O

(15. Nxd5 Bxd5 16. Bxd5 Rd8 17. e4 Nf6=) 
(15. Bxd5? b5) 
(15. Nxe6 Qxe616. O-O b5! 17. Qc2 Qh6 18. h4 Bxf2+ 19. Rxf2 Qe3 "unclear") 

15... b5!? 16. Ncxb5 

(16. Ndxb5 Bd7 17. Rxd5 Nf6 18. Nxa7 Bxa4 19. Nxc8 Nxd5 20. Nxa4 Nc3 21. Nxc3 Rfxc8 22.Bh3 Rc6=) 

16... Bd7 17. h3 Ne5 
(or 17... Nxf2 18. Rxf2 a6) 
(or 17... Bxd4 18. Qxd4 Bxb5) 

This seems attractive even though it may be not completely sound!

  
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Re: The Tarrasch in Black and White
Reply #261 - 06/03/10 at 13:13:36
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10.a3 Qc8 11.g3 Ng4 (11...Rd8 12.Bg2 Ng4 13.Bf4 and 11...b6 12. cxb6 axb6 13.Qc2 Bc5 14.Bg2! or 13...Ng4 14.Bxb6 are worse) 12.Bd4! Nxd4 13.Nxd4 Bxc5 (13...Bd7 14.Nxd5) 14.Bg2 +=.

If you are not satisfied with 10...Ng4 (which doesn't seem too bad), you can study 10...Re8 and only after 11.g3 Ng4! 12.Bf4 Bxc5, when the Bf4 looks strange. Thus 11.h3 Na5 (h6; Nd7?!) 12.Bd4 Nc4 13.Qb3 Nd7 14.e3 Nxc5.
  
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Re: The Tarrasch in Black and White
Reply #260 - 06/03/10 at 09:20:43
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Mark, i don't see something different if White chooses the main line with Qa4+Rd1 against the move ordew with 7...Be7

Stefan, yes i very much like your suggestion in the main line and indeed there is a problem in the 10.a3 line because as i understand it Black has an inferior IQP position. But what about 10.a3 Qc8! the idea now is that 11.b4 b6! and 11.h3 b6 (as in the main line) seem fine for Black and after 11.g3 Rd8 or better 11...Ng4! 12.Nxd5 (12.Bf4 Bxc5 13.e3 Rd8 is now much worse version of the IQP for White) Bxd5 13.Rxd5 Qe6 14.Rd3 Nxe3 15.Rxe3 Qa2! and Black being two pawn down may be already somewhat better!!
  
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Re: The Tarrasch in Black and White
Reply #259 - 06/03/10 at 07:50:04
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What a great feedback! Thank you all. I'll work on these lines more closely
  
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Re: The Tarrasch in Black and White
Reply #258 - 06/03/10 at 01:33:09
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8.g3 Be7 9.Nd4 merits attention.  Also what about 7...Be7?
  
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Re: The Tarrasch in Black and White
Reply #257 - 06/03/10 at 00:09:02
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I'd prefer 10...Qc8! (10...Rc8? 11.a3) 11.a3 b6 12.cxb6 axb6 13.Qc2 (13.Qb5 Ra5!) 13...Bc5 14.Bxc5 bxc5 plan d4 (or maybe c4), comp. 
In move 10 the line 10.a3 Ng4 11.Bf4 (you give 11.Nxd5) 11...Bxc5 12.e3 Rc8 or Qb6 deserves attention (= or +=).
  
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Re: The Tarrasch in Black and White
Reply #256 - 06/02/10 at 22:52:38
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Only days before i send my book for proof-reading i added the following lines based by your suggestion which seems interesting indeed!

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Nc3 Nc6 6. dxc5 Nf6 7. Be3

(7. Bg5 Bxc5 8. Bxf6 Qxf6 9. Qxd5 

(9. Nxd5 Qxb2 10. Rb1 Qxa2 11. Ra1 Qc4 12. Nc7+ Ke713. Nxa8 Rd8) 

9... Bb4 10. Rc1 Be6 11. Qe4 O-O 12. a3 Bxc3+ 13. Rxc3 Rfd8) 

7...Be6 {Djy} 8. Qa4

(8. g3 Be7 9. Bg2 O-O 10. O-O Ng4 11. Bd4) 
(8. a3 Be7 9. b4 
(9. g3 O-O 10. Bg2 Ng4 11. Bd4 Nxd4 12. Nxd4 Bxc5) 
9... O-O 10. g3 (10. h3 Ne4)
10... Ng4 11. Bd4 a5) 
(8. Nd4 Be7 9. Nxc6 bxc6 10. g3 O-O 11. Bg2 Rb8 12. Qd2 Qa5 13. Rc1 Ng4) 

8... Be7 9. Rd1 O-O 10. h3 

(10. g3 Ng4 11. Bd4 
(11. Nxd5 Bxd512. Qxg4 Qa5+ 13. Bd2 Qxc5 14. Bc3 g6 15. a3 Rad8 16. Bg2 Bxf3 17. Bxf3 Rxd1+
18. Kxd1 Qxf2) 
11... Nxd4 12. Qxd4 Rc8 13. b4 b6 14. cxb6 Bf6) 

(10. a3 Ng4 11.Nxd5 Bxd5 12. Qxg4 Bf6) 

10... Rc8 11. g3 Qa5= the bold is the main line. Corrections are welcome.

  
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Djy
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Re: The Tarrasch in Black and White
Reply #255 - 06/02/10 at 16:00:56
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8.Qa4 Be7 9.Rd1 0-0 and black lead in develop. seem to give compensation no? 
example 10.g3 Ng4 11.Nd5 Bd5 12.Qg4 Qa5+ 13.Bd2 Qc5
  
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La victoire est brillante mais l'échec est mat!  Coluche
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Re: The Tarrasch in Black and White
Reply #254 - 06/02/10 at 14:23:01
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I see in my files the move 8.Qa4! with the idea 9.Rd1. The move 8...Nd7 that was suggested by a friend doesn't work. I haven't analysed 8.Qa4 seriously but this was the reason i rejected the whole line.
  
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Djy
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Re: The Tarrasch in Black and White
Reply #253 - 06/02/10 at 12:16:20
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Ametanoitos wrote on 05/26/10 at 00:12:13:
Ok people, stop killing Black!  Grin Don't forget that i am writing a book from Black's side and i asked for a help FOR BLACK! Seriously now, i will contact some GM friends with some experience on the Tarrasch but i'm not to confident that when i reach them they will provide a good solution to the problem.


Ok 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cd5 ed5 (cd4 is more easy because you know you have a pawn down Smiley) 5.Nf3 Nc6 6.dc5 Nf6 7.Be3 Be6!? and here it's not so easy to keep the pawn and finish the developement Paddy suggest the logical 8.a3 One can continue Be7 9.b4 (9.g3 0-0 10.Bg2 Ng4 with counterplay) 0-0 10.g3 Ng4 11.Bd4 a5 with counterplay. I'm not pretend it' kill the refutation but at least it's an interesting way IMO
  
La connerie c'est la décrontaction de l'intelligence  Gainsbourg
La victoire est brillante mais l'échec est mat!  Coluche
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