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Fianchetto line against the Benko.Suggestion... (Read 18023 times)

guest(Guest) Guest	Re: Fianchetto line against the Benko.Suggestion.. Reply #8 - 02/17/06 at 06:16:44	Post Tools	Print Post
	Hello, @Ametanoitos, Your post (I am trying to find a solid way for black to play against the fianchetto variation. 10.Rb1! O-O 11.O-O Qa5 (can you suggest something more reliable?) 12.Bd2 Rfb8 13.Qc2 Qc7 (Mc Donald suggests Qa5 but says that after 14.b3 Nb6 15.Nh4 white has the advantage ) 14.b3! (the threat was Bc4) Nb6 15.Nh4 and now Fritz likes 15..Qb7 16.Rfd1 (best) Nxd5 17.Nxd5 Nxd5 18.Bh6 Bxh6 19.Bxd5 Qb5 playing with the two bishops against white's rook and knight.) The starting position for the so-called exchange sac is bogus. After 20.Nxg6,ripping and getting back the pawn, Black will have hard time to hold the draw. regards Memers


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Keano God Member Offline Money doesn't talk, it swears. Posts: 2928 Location: Toulouse Joined: 05/25/05 Gender:	Re: Fianchetto line against the Benko.Suggestion.. Reply #7 - 02/13/06 at 14:46:02	Post Tools	Print Post
	wasnt that TOpalov game in the ...Qa5 variation? That ending is worth avoiding at all costs. I meant ..Ne8 with the Q on d8


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Ametanoitos God Member Offline The road to success is under construction Posts: 1429 Location: Patras Joined: 01/04/05	Re: Fianchetto line against the Benko.Suggestion.. Reply #6 - 02/11/06 at 13:23:04	Post Tools	Print Post
	Yes, i have. Topalov has suffered a defeat from Kramnik in this variation (..Ne8,Nc7 etc). I haven't found yet a way for white to claim an advantage at the exchange sucrifise i suggested. Everyone i have shown this is sceptical at first but then changes his mind preffering black's position. The sac has a enormus surprise value at least!


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Keano God Member Offline Money doesn't talk, it swears. Posts: 2928 Location: Toulouse Joined: 05/25/05 Gender:	Re: Fianchetto line against the Benko.Suggestion.. Reply #5 - 02/10/06 at 10:51:43	Post Tools	Print Post
	Have you investigated the line with 11...Ne8 and then ...Nc7-b5 In my opinion this fianchetto line is big trouble for Black, but there may be some hope...


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MNb God Member Offline Rudolf Spielmann forever Posts: 10780 Location: Moengo Joined: 01/05/04 Gender:	Re: Fianchetto line against the Benko.Suggestion.. Reply #4 - 02/10/06 at 03:01:09	Post Tools	Print Post
	Sorry for the typo, I meant 20.Bxa8 Rxa8 21.e4. After Qe2 22.Rb2 Qg4 White can play 23.b4 immediately. But I must admit, that Bb5 24.Re1 c4 and 25...Ra3 looks good.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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Ametanoitos God Member Offline The road to success is under construction Posts: 1429 Location: Patras Joined: 01/04/05	Re: Fianchetto line against the Benko.Suggestion.. Reply #3 - 02/09/06 at 11:16:15	Post Tools	Print Post
	I looked again 20.e4 Qe2 21.Rb2 Qg4 and if 22.a3 then 22..Bg7 23.Rb1 Qe6 24.b4 (f3 weakens the white's king defence) Bb5! threatens to win the exchange back and to win the a3 pawn or to push c4!


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Ametanoitos God Member Offline The road to success is under construction Posts: 1429 Location: Patras Joined: 01/04/05	Re: Fianchetto line against the Benko.Suggestion.. Reply #2 - 02/09/06 at 11:10:08	Post Tools	Print Post
	13.Rfe1 in the Piket-Topalov game you mentioned is a known big improvement for white.I do not trust this line as black. After 20.e4 (your suggestion about the exchange sucrifice i gave) play might continue 20..Qe2! and only 21.Rb2 is sensible to me and 21..Qg4 trying to provoke some weakneses is sound.Black then will play Bg7 and if a4 (a3 loses the pawn to Rxa3! ) after Rb8-b4 and Bb7 black's bishops dominate the board providing lasting compensation. Maybe the critical variation is not 20.e4 but 20.Qe4 but then after 20..Bb7 21.Qxe7 Bf8 the a2 or e2 pawn falls and black seems OK to me again! Maybe i'm missing something obvious but nothing seems to work out for white here! Really interesting the other variations you give. Thanks very much!


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MNb God Member Offline Rudolf Spielmann forever Posts: 10780 Location: Moengo Joined: 01/05/04 Gender:	Re: Fianchetto line against the Benko.Suggestion.. Reply #1 - 02/09/06 at 04:19:36	Post Tools	Print Post
	Your exchange sac is not that solid, is it? 20.e4 followed by 21.a3 and 22.b4 activates the white rooks. How about Alburt/Stein's idea of an early Nb8-d7-b6 manoeuvre? 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 g6 6.Nc3 Bxa6 7.g3 d6 8.Bg2 Bg7 9.Nf3 Nbd7 10.Rb1 (10.o-o Nb6 11.Rb1 Bc4!?) Nb6 11.b3 Ra7 12.o-o Qa8 13.a4 o-o. OK, I have to admit, that Piket-Topalov, Hoogovens 1999, was not a solid game, while Topalov probably should have played even less solid (with c5-c4 at some stage) to create counterplay. Also interesting is a completely different idea: 11.b3 o-o 12.o-o Qc7 a)13.Nh4 Rae8!? 14.Bb2 e6 Kiss-Pähtz, Leipzig 1988. b)13.Re1 e6!? (Rae8 is too slow: 14.e4 e6 15.dxe6 fxe6 16.Bf4 +-, Stohl, but Rad8 and Bb7 might be worth investigating) 14.dxe6 fxe6 15.e4 (15.h3 d5 16.Bf4 Qe7 with central play) Ng4 16.Bb2 d5 Churin-Fiorito, Buenos Aires 1992. Here 17.Bh3 looks strong, but what about 16...Nxf2!? (instead of d5) 17.Kxf2 Bd4+ 18.Re3 Nd7 19.Na4 (19.Bc1 Ne5) Ne5 20.Bxd4 cxd4 21.Re1 Rxf3+! 22.Bxf3 Rf8 and I do not envy White. Again it is not really solid, but solid play seems to lead to a lasting disadvantage.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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Ametanoitos God Member Offline The road to success is under construction Posts: 1429 Location: Patras Joined: 01/04/05	Fianchetto line against the Benko.Suggestion... 02/08/06 at 14:42:02	Post Tools	Print Post
	I am trying to find a solid way for black to play against the fianchetto variation. 10.Rb1! O-O 11.O-O Qa5 (can you suggest something more reliable?) 12.Bd2 Rfb8 13.Qc2 Qc7 (Mc Donald suggests Qa5 but says that after 14.b3 Nb6 15.Nh4 white has the advantage ) 14.b3! (the threat was Bc4) Nb6 15.Nh4 and now Fritz likes 15..Qb7 16.Rfd1 (best) Nxd5 17.Nxd5 Nxd5 18.Bh6 Bxh6 19.Bxd5 Qb5 playing with the two bishops against white's rook and knight. What is your opinion about the position? Does black have a better way to reach a more promising position? White's moves in this variation are almost forced if he wants not to pass the advantage to black.


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