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Normal Topic TN in the ...a5 line against the English Attack (Read 3862 times)
AntonioAg
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Re: TN in the ...a5 line against the English Attack
Reply #3 - 09/29/16 at 15:28:25
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GM Rafael Letaio has a DVD repertoire on it you may want to look at it.
I took a look at the 2014 ICCF database (is there a 2015? I couldnt find it on their site) and the mainline (or at least most played move) is 13...Rc8
Black seems to deviate from the most played moves after 14.g5 Nd7 as 14...Nh5 is the most played move in that position.

Perhaps that line is actually busted and Black should try 14...Nh5.
Altho statistics are also demoralizing in that one too, only 2 wins for Black and up to 10 for White with some draws in between.



After it there are many possible lines for Black including 15...g6, Qc7, f5, Kh8 etc... You may want to look up to those.

It would be funny if this a5 lines turned out to be almost busted, specially because Letaio was number 3 in the 26th CC Championship.
  
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George Jempty
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Re: TN in the ...a5 line against the English Attack
Reply #2 - 01/04/16 at 13:24:43
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Yeah I need to access the ICCF database too if I'm going to be serious about this centaur chess.  In any case, me and another FICGS player (not my opponent in the game I posted, but in two other FICGS games) think an earlier improvement is 13...Qc7, despite its dismal statistics  in chessbase.
  
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Vass
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Re: TN in the ...a5 line against the English Attack
Reply #1 - 01/02/16 at 11:50:36
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Other correspondence chess games in this line:

It seems this exact line is busted for black. White wins 100 % out of the games.  Wink
  
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George Jempty
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TN in the ...a5 line against the English Attack
01/01/16 at 20:14:17
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The following position has been reached in 5 games between players rated between 2194 and 2582, with 17.Be2 being played 3 times, and 17.Nd4 twice.  Those five games turned out fine for White (4.5-0.5), though my engine evaluated 17.Be2 as "only" giving White an advantage of 0.5 (I forget what it thought about 17.Nd4).

Instead it suggested 17.h4 with an advantage of about 1.0



The game continued 17.h4 Qb6 18.Bb5 Qc7 19.h5 Rfd8 20.Qg2 Bxb3 21.cxb3 1-0.  The engine didn't like Black's 17th through 19th moves at all, giving White an advantage of +2.0.  Black resigned probably just because of this evaluation because it seems to me there is a bit of play left.
  
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