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Very Hot Topic (More than 25 Replies) The Delchev/Semkov book (Read 142238 times)
Kowl
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Re: The Delchev/Semkov book
Reply #178 - 12/25/08 at 16:41:24
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BobbyDigital80 wrote on 12/25/08 at 12:38:05:
Kowl wrote on 12/24/08 at 10:51:54:
BobbyDigital80 wrote on 12/13/08 at 10:52:37:
Another line that I don't trust is on page 85 at the right in the middle.
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Na4 Bd6 11. Nb6 Rb8. First of all Rybka 3 says 11...Bxh2 is = and that after 11...Rb8, then 13.g3 and white is slightly better. They say 10...Bd6 is ! but Rybka 3 says 10...Rb8 is =. What's so good about the Bd6 move when white can stop the threat?

Also in the main line with 9.Na4, they say 9...Bd6 is bad because of 10.Nb6! But Ryka 3 says Nb6 isn't good for white there and it gives 10...Bxh2+ as slightly better for black.

I don't understands the intricacies of the difference between the 9.Na4 Bd6 and 9.Nxc6 bxc6 10.Na4 Bd6 lines.





if white play Nxc6 before Na4 he gives black the option os playing Bd6 rather than Be7. Black would prefer the bishop on d6 as it threatens to take on h2. It's just inacurate of white to allow black this choice.


How is it inaccurate? Bd6 in that line isn't good. If I was white I would probably play Nxc6 first and allow them their Bd6 move, and then play g3 and just have a better position probably.


after g3 black can follow up with maybe c5 and stop white getting at his former weakness. White is still fine in this position, it will just be a little harder to play from than the original plan of Nb6.

I guess if you're using Rybka to verify every variation you're not going to be happy with any of the book as most engines prefer white in every line of the taimanov.
  
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BobbyDigital80
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Re: The Delchev/Semkov book
Reply #177 - 12/25/08 at 12:38:05
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Kowl wrote on 12/24/08 at 10:51:54:
BobbyDigital80 wrote on 12/13/08 at 10:52:37:
Another line that I don't trust is on page 85 at the right in the middle.
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Na4 Bd6 11. Nb6 Rb8. First of all Rybka 3 says 11...Bxh2 is = and that after 11...Rb8, then 13.g3 and white is slightly better. They say 10...Bd6 is ! but Rybka 3 says 10...Rb8 is =. What's so good about the Bd6 move when white can stop the threat?

Also in the main line with 9.Na4, they say 9...Bd6 is bad because of 10.Nb6! But Ryka 3 says Nb6 isn't good for white there and it gives 10...Bxh2+ as slightly better for black.

I don't understands the intricacies of the difference between the 9.Na4 Bd6 and 9.Nxc6 bxc6 10.Na4 Bd6 lines.





if white play Nxc6 before Na4 he gives black the option os playing Bd6 rather than Be7. Black would prefer the bishop on d6 as it threatens to take on h2. It's just inacurate of white to allow black this choice.


How is it inaccurate? Bd6 in that line isn't good. If I was white I would probably play Nxc6 first and allow them their Bd6 move, and then play g3 and just have a better position probably.
  
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Kowl
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Re: The Delchev/Semkov book
Reply #176 - 12/24/08 at 10:51:54
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BobbyDigital80 wrote on 12/13/08 at 10:52:37:
Another line that I don't trust is on page 85 at the right in the middle.
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Na4 Bd6 11. Nb6 Rb8. First of all Rybka 3 says 11...Bxh2 is = and that after 11...Rb8, then 13.g3 and white is slightly better. They say 10...Bd6 is ! but Rybka 3 says 10...Rb8 is =. What's so good about the Bd6 move when white can stop the threat?

Also in the main line with 9.Na4, they say 9...Bd6 is bad because of 10.Nb6! But Ryka 3 says Nb6 isn't good for white there and it gives 10...Bxh2+ as slightly better for black.

I don't understands the intricacies of the difference between the 9.Na4 Bd6 and 9.Nxc6 bxc6 10.Na4 Bd6 lines.





if white play Nxc6 before Na4 he gives black the option os playing Bd6 rather than Be7. Black would prefer the bishop on d6 as it threatens to take on h2. It's just inacurate of white to allow black this choice.
  
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Kowl
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Re: The Delchev/Semkov book
Reply #175 - 12/24/08 at 10:36:38
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BobbyDigital80 wrote on 12/24/08 at 02:21:43:
What about the other lines I gave? Their ...Bd6 line is no good.

The point is is you play Rb8 before Be7 white isnt forced to continue with the plan of playing Nb6 he can instead play c4 and play for a bind, which personally as a Taimanov player myself I dont enjoy facing half as much as the Nb6 lines.
  
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BobbyDigital80
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Re: The Delchev/Semkov book
Reply #174 - 12/24/08 at 02:21:43
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What about the other lines I gave? Their ...Bd6 line is no good.
  
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Kowl
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Re: The Delchev/Semkov book
Reply #173 - 12/14/08 at 23:19:43
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BobbyDigital80 wrote on 12/13/08 at 12:42:53:
One other suggestion. What's wrong with this line?
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Na4 Rb8
Rybka 3 says 9...Rb8 is = and that 9...Be7 gives white a slight advantage. Why rush the B to e7 right away? If Rb8 first, the B might be able to go to d6 depending on what white does.


If 9...Rb8?! white can play 10.c4 Bd6 11.g3 or f4 - good for white.
                                      10.c4 Be7 11.Nc3 - good for white
  
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Re: The Delchev/Semkov book
Reply #172 - 12/13/08 at 12:42:53
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One other suggestion. What's wrong with this line?
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Na4 Rb8
Rybka 3 says 9...Rb8 is = and that 9...Be7 gives white a slight advantage. Why rush the B to e7 right away? If Rb8 first, the B might be able to go to d6 depending on what white does.
  
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Re: The Delchev/Semkov book
Reply #171 - 12/13/08 at 10:52:37
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Another line that I don't trust is on page 85 at the right in the middle.
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Na4 Bd6 11. Nb6 Rb8. First of all Rybka 3 says 11...Bxh2 is = and that after 11...Rb8, then 13.g3 and white is slightly better. They say 10...Bd6 is ! but Rybka 3 says 10...Rb8 is =. What's so good about the Bd6 move when white can stop the threat?

Also in the main line with 9.Na4, they say 9...Bd6 is bad because of 10.Nb6! But Ryka 3 says Nb6 isn't good for white there and it gives 10...Bxh2+ as slightly better for black.

I don't understands the intricacies of the difference between the 9.Na4 Bd6 and 9.Nxc6 bxc6 10.Na4 Bd6 lines.



  
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BobbyDigital80
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Re: The Delchev/Semkov book
Reply #170 - 12/13/08 at 10:25:10
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On the top of page 85 on the left side, this line is given as equal.
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6.
Be2 a6 7. O-O Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Qd4 c5 11. Qc4 Bb7 12. Bf3 and now they give 12...Qe5 and 12...e5 as being equal. 12...Qe5 is equal but 12...e5 is horrible because it gives up the d5 square and Rybka 3 says white is +.95. Undecided

  
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Kowl
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Re: The Delchev/Semkov book
Reply #169 - 11/29/08 at 14:32:23
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IMRichardPalliser wrote on 11/27/08 at 09:33:37:
I'm still to see a copy of the second edition in England...strange! Sounds like it may well be worth the wait though Smiley


Hi Richard, I ordered mine from New in Chess last month. Almost finished it now. Smiley
  
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Re: The Delchev/Semkov book
Reply #168 - 11/27/08 at 22:13:03
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On the publisher's website there is a PDF excerpt with the author's foreword to the 2nd, which explains the changes.

http://www.chess-stars.com/graphics/eshop/books_special/The_Safest_Sicilian.pdf

(Sorry if this info has already been written somewhere earlier in the thread).
  
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Re: The Delchev/Semkov book
Reply #167 - 11/27/08 at 09:33:37
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I'm still to see a copy of the second edition in England...strange! Sounds like it may well be worth the wait though Smiley
  
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Re: The Delchev/Semkov book
Reply #166 - 11/26/08 at 13:22:53
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if you think of a serious e4 player he will make part3/4/5 (from white side) as his repertoire. so it's not surprising that all these systems (from black side) came under pressure. in 2nd edition all lines are fixed but what i think is even better is that he gives unexplored "sidelines" as backup. i find these lines easier to play and you do not risk getting outprepared. depending on your level (i never reach main lines in my games *g*) the 2nd edition is a must
  
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Re: The Delchev/Semkov book
Reply #165 - 11/25/08 at 21:04:27
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Some time ago I bought the 1st edition of this book and now I am scratching my head real hard trying to understand whether it makes sense for me to buy the 2nd edition - financial crisis and all Wink

Could anybody who read both the 1st and the 2nd edition of the book share his or her observations on the value of the purchase? Anything particular that stands out in 2nd edition and is completely missing in 1st?
  
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Kowl
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Re: The Delchev/Semkov book
Reply #164 - 11/22/08 at 23:09:20
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Kowl wrote on 11/05/08 at 11:27:08:
I've ordered it from New In Chess. I'll let ya'll know how I get on Undecided


Hey Semko...

p.51 you missed a move:

"14.g5 Nfd7 15.f4 16.Na4"   - you forgot 15...b4

also

"(12.Bd4 13.Bc5 Bc5 14.Nc5 0-0=)" - you forgot 12...Nc6

(just thought I'd mention it ready for the 3rd edition) Wink
  
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