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Hot Topic (More than 10 Replies) Riga and Dilworth variations - viable for black? (Read 10159 times)
barnaby
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Re: Riga and Dilworth variations - viable for black?
Reply #12 - 03/17/14 at 17:15:34
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tony37 wrote on 03/17/14 at 15:30:12:
of course the Dilworth is playable, the problem is if white doesn't play 9.c3 (which is clearly not the best move if you ask me)



of course

the dilworth, like most other 'pet' lines (viable sub variations of main lines inside large opening complex) is only going to be essayed with the cooperation from an opponent

the riga, otoh, can be put on the board more often but is an invitation to have one's teeth pulled without the administration of a proper anesthetic first  Sad
  
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tony37
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Re: Riga and Dilworth variations - viable for black?
Reply #11 - 03/17/14 at 15:30:12
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of course the Dilworth is playable, the problem is if white doesn't play 9.c3 (which is clearly not the best move if you ask me)
  
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kylemeister
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Re: Riga and Dilworth variations - viable for black?
Reply #10 - 03/17/14 at 14:26:02
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Regarding quick/decisive wins by Black in the Dilworth, I think of two games from the 1980s:  Ljubojevic-Yusupov and Spassky (as White) against the German master Neunhöffer.
  
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Re: Riga and Dilworth variations - viable for black?
Reply #9 - 03/17/14 at 13:17:44
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I did not knew that Dilworth had developed a Ruy Lopez line, I only hearded he invented 4 e4 vs s Nimzo Indian defence
  
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ErictheRed
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Re: Riga and Dilworth variations - viable for black?
Reply #8 - 03/17/14 at 12:59:37
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The Riga is probably a fine surprise weapon at a certain level, but beyond that I don't know. 

I don't know why the Dilworth should be problematic at all (though I haven't kept up with the theory); it's been considered OK for many years, with strong players taking it up from time to time.  The trouble may come at amateur level when someone might try to play it as an "attack," which is just wrong.  Black often gets balanced endgame positions where his active rook and pawn(s) are an equal match for White's pieces.  Obviously there is new theory to check here, but you should acquaint yourself with the typical endgame plans by looking at some older games as well, i.e. of Yusupov's.  Jonathan Tisdall had a nice little section on this in his wonderful book Improve Your Chess Now.

So I somewhat agree with Brabo that anything from 2002 will be outdated, but just want to remind you to study those typical endgames in addition to whatever new theory has come along.

Edit: in fact I'm very surprised to see White managing a paltry 43.9% score in my database after ...Qxf6 in the Dilworth.  That's just a raw number without any filtering out of weaker players, etc., but still remarkable.  As far as I know, the Dilworth has been considered fine for Black for many years, though as with any other main-line opening ideas come along to test Black and then fade away, etc.
  
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Re: Riga and Dilworth variations - viable for black?
Reply #7 - 03/17/14 at 09:45:33
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katar wrote on 03/17/14 at 01:06:49:
I think Open Lopez is a fair choice for club players and if you like the Open Lopez in general then it makes sense to dabble in the Dilworth ... for variety.


Absolutely, I see Open expert Victor M even plays the Dilworth from time-to-time - there was a quick win of his in the February update. Wink
  
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Re: Riga and Dilworth variations - viable for black?
Reply #6 - 03/17/14 at 09:04:37
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RoleyPoley wrote on 03/17/14 at 00:12:07:
How difficult are they to learn and are they practical openings for a club player?


Good for surprise value perhaps, but if you have little study name, it's wasted on knowing the details of how to reach a slightly dubious ending. Knowing how to defend the resulting endings might have some value, if you were going to specialise in it. There's also the practical problem in the Riga of the instant draw by taking the Knight on h2.
  
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Re: Riga and Dilworth variations - viable for black?
Reply #5 - 03/17/14 at 08:56:34
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03/17/14 at 09:08:58RoleyPoley wrote on 03/17/14 at 00:12:07:
Reading through Grandmaster Secrets: Openings  by Andy Soltis (2002), he recommends both the Riga and Dilworth variations for black saying they can be learned over a long weekend.

How difficult are they to learn and are they practical openings for a club player?

I believe anything published in 2002 is hopelessly outdated.

About the Dilworth I can state that I gave up playing 9.c3 after the game below.
  
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PANFR
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Re: Riga and Dilworth variations - viable for black?
Reply #4 - 03/17/14 at 06:24:37
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I fail to see why I should study the Riga. I could easily get an equally losing position myself, without any study!  Tongue
  
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Re: Riga and Dilworth variations - viable for black?
Reply #3 - 03/17/14 at 01:30:01
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How many players under Master level will know the Riga analysis in the Forum?  For playing from time-to-time at club level (but not exclusively), Riga is fine.  People fall into the Nc3 trap all the time even if they think they know the book line.

On the Internet, it is even better as you would likely always retain the element of surprise.
  
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Re: Riga and Dilworth variations - viable for black?
Reply #2 - 03/17/14 at 01:06:49
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Both Dilworth and Riga have long forcing lines.  They both lack strategic flexibility.  But you might value that quality.  They have one-time surprise value but their effectiveness will drop against repeat opponents once they know what to expect from you.

Seirawan published a Youtube lecture on the Riga variation that prompted this thread:
http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1372059672

I am not a big expert on the matter, but I think Open Lopez is a fair choice for club players and if you like the Open Lopez in general then it makes sense to dabble in the Dilworth and Riga here and there to see what you think and for variety.

If you don't like the Open Lopez in general, I wouldn't bother with Dilworth or Riga.

Just my opinion.
  

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Re: Riga and Dilworth variations - viable for black?
Reply #1 - 03/17/14 at 00:51:41
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Regarding the Riga, is Soltis coverage limited to the old endgame line or does he mention the modern "refutation" 8.Bg5 as well? Being a club player myself (fide 1940), I'd say it's not something I would like to play as the second player. Black has to be ultra precise in the early moves to avoid losing a miniature, and even if he escapes the numerous early pitfalls it's not clear he is actually doing ok (there is a thread somewhere on this site where this line has been analyzed extensively; if I remember correctly the final conclusion was that white is more or less winning after huge complications with correct play). Also the fact that white can freely choose between an extremely sharp line (8.Bg5) and forcing an ending (8.Nxd4) and play for a theoretical edge in both cases makes the line a bit unpractical in my view.
  
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Riga and Dilworth variations - viable for black?
03/17/14 at 00:12:07
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Reading through Grandmaster Secrets: Openings  by Andy Soltis (2002), he recommends both the Riga and Dilworth variations for black saying they can be learned over a long weekend.

How difficult are they to learn and are they practical openings for a club player?
  

"As Mikhail Tal would say ' Let's have a bit of hooliganism! '"

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