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Hot Topic (More than 10 Replies) Current status of the Romanishin-Psakhis system? (Read 989 times)
FreeRepublic
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Re: Current status of the Romanishin-Psakhis system?
Reply #14 - 08/08/24 at 19:52:13
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fischerrjbobby wrote on 08/08/24 at 14:25:14:
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 b6 6. a3 Ba5 7. Rb1 Na6 8. Ng3 Bb7 
9. f3 O-O 10. Be2 d5 11. O-O dxc4 12. Bxc4

Thanks for providing moves leading to the position analyzed by MartinC.

I tried to find a common position between Sokolov and Dearing. That would be sort of a battle of the repertoires. However, there are so many lines and move orders that I was unable to do so.

I think Black has alternatives to the Romanishin-Psakhis that are easier to play. Still, the R-P system may appeal to many players.
  
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FreeRepublic I agree. What moves led to the diagra
Reply #13 - 08/08/24 at 14:25:14
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FreeRepublic I agree. What moves led to the diagramed 
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 b6 6. a3 Ba5 7. Rb1 Na6 8. Ng3 Bb7 
9. f3 O-O 10. Be2 d5 11. O-O dxc4 12. Bxc4 *
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Re: Current status of the Romanishin-Psakhis system?
Reply #12 - 08/08/24 at 13:54:05
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MartinC wrote on 08/06/24 at 08:19:53:
Huge, complex, messes with a survivable white edge.

I agree. What moves led to the diagramed position?

The ChessPublishing archive also covers the Romanishin-Psakhis line in several games. The position can be reached after either
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 c5 6. a3 Ba5
or
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 b6 6. a3 Ba5

Regardless of whether the game proceeds with 4...b6 5Ne2 or 4...c5 5Ne2, Black has reasonable alternatives to the Romanishin-Psakhis line. Also 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 is possible.
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #11 - 08/08/24 at 13:10:16
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an ordinary chessplayer wrote on 08/08/24 at 01:51:27:
The Dearing file was just an example repertoire for my Practice your opening against an engine post.


Thanks. Following the link and scrolling down, one can download the enclosure of 58 games found in Dearing's book.

  
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Re: Current status of the Romanishin-Psakhis system?
Reply #10 - 08/08/24 at 12:31:14
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As always AOC, ever helpful. Thanks!
  
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an ordinary chessplayer
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Re: Current status of the Romanishin-Psakhis system?
Reply #9 - 08/08/24 at 02:17:10
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cathexis wrote on 08/07/24 at 12:46:37:
I also found this on Google Play, apparently also from Bookup for only $8.00(??). I cannot explain this:


Quote:
Mike Leahy wrote:
The iPhone, iPad, and Android Chess Openings Wizard apps are going back up to $37 soon. But for now you can get any mobile version for $7.
-- https://www.bookup.com/catalog/
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #8 - 08/08/24 at 01:51:27
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The Dearing file was just an example repertoire for my Practice your opening against an engine post. Anyway the attachment is there:
https://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1717001072/0#0
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #7 - 08/07/24 at 13:13:41
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I was unclear. I was referring to AOC's pgn file of the games contained in Dearing's book Play the Nimzo-Indian. Maybe AOC can provide a link to his PGN file.

As for BookUp, the $8 app is for tablets and has very limited capability.

Before going on to PC and Macintosh, I want clarify something. BookUp and Chess Opening Wizard are the same thing, at least in my opinion. The initial product was called BookUp. Later, it was given the name Chess Opening Wizard. Some links use the old name. I just think of them as synonyms.

There are two versions of Chess Opening Wizard:  Express and Professional. The express version costs $97. The Professional version costs $197.

https://www.bookup.com/catalog/comparison-chart/
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #6 - 08/07/24 at 12:46:37
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BTW,

I also found this on Google Play, apparently also from Bookup for only $8.00(??). I cannot explain this:

https://play.google.com/store/apps/details?id=com.bookup.chessopeningswizard&hl=...
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #5 - 08/07/24 at 12:42:55
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This is where you can find it:

https://www.bookup.com/home/chess-openings-wizard-2016-program-status/

The Pro version is $297 US. There is a link on the above page to a comparison chart. I do not own it or have knowledge about it.

Hope this helps,
Cathexis
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #4 - 08/06/24 at 17:07:37
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MartinC wrote on 08/06/24 at 08:19:53:
I haven't got Dearing anymore to check quite what he had,

AOC found all the games in Dearing's book and saved them as a PGN file. He provided this in the ChessPub forum. At the time, I uploaded the games to Chess Opening Wizard, but other software would work too. It's a good resource, if someone can find it.
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #3 - 08/06/24 at 08:19:53
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Well first up you get messes, and ones that stay complex for many moves. So it's absolutely no issue playing it at 1600-2000 level!

I actually checked this reasonably recently with SF NNE and it's actually reasonably positive about it all. Huge, complex, messes with a survivable white edge. 

Black does need to play some good moves but you'll get good winning chances of your own.

I haven't got Dearing anymore to check quite what he had, from what I remember a few lines won't quite hold up.

One critical position below - via 7 Rb1 and 8 Ng3. Black can seemingly try 10.. cd, Bxc3+ and Nc7/Ba6 or Qc7 instead earlier. That's a tiny bit anti thematic I suppose.

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iirc, Dearing was keen on h5 ideas somewhere? SF doesn't like them much and if it doesn't like h5 it can't be a very good move!

It prefers to go 12.. b5!??! instead, basically just going a pawn down for weaknesses and activity. A little bit much to truly recommend.

12.. Qe7 seems to be best, which leads to wild things in a huge range of directions. 

13 b4 seems like it might just win, but doesn't - 13.. cb 14 Na2 Rfd8 (vs Ba3 skewers) 15 Bxa6 BxB 16 ab and then Bc4 is apparently a refinement on Bxf1.

13 Bd3 cd 14 cd b5!? actually works quite well(!).

13 e4 Rfd8 etc is a dangerous sacrifice of d4, but OK, black active too.

13 Nce4 Nd5 14 Qe2 Nac7 15 Bd3 a6 16 dc bc 17 Bd2 Bb6 18 Rbc1 Nb5 19 Kh1 and then SF thinks f5,f4 works fairly well.
  
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Re: Current status of the Romanishin-Psakhis system?
Reply #2 - 08/05/24 at 16:49:27
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BigTy wrote on 08/05/24 at 06:35:36:

Does anyone know the current status of this variation? Is it still playable objectively?


GM Sokolov's book The Strategic Nimzo-Indian is a bit more recent (2012) and quite negative: "The main idea is to keep dynamic tension in the position and to confuse matters."
  

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.
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Re: Current status of the Romanishin-Psakhis system?
Reply #1 - 08/05/24 at 14:35:50
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Good question.

I went to Chess Assistant and did a query for 2019-2023. =36 +64(W) -50(B wins). My rule of thumb is that White typically scores 50% more wins than Black. With Black winning 50 games, I would expect White to win 75 games. With only 64 wins for White, Black is doing well.

How does it fair among the elites? Restricting games to above 2400 rating:  =6 +12 -3.
  
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Current status of the Romanishin-Psakhis system?
08/05/24 at 06:35:36
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Hi all, 

I've found the Romanishin-Psakhis system fascinating ever since I read about it in Edward Dearing's 2006 book, 'Play the Nimzo-Indian' years ago. 

For those not familiar with it, it is a highly complex and provocative variation that starts after 1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 b6 5 Nge2 c5 6 a3 Ba5 7 Rb1 (the main move, but not the only good one) when Black can choose between 7...Na6 and 7...Qe7. The bishop often looks like it is going to get trapped or be forced to capture on c3 after 8.Qa4, but Dearing shows that it can escape with some interesting tactical complications. 

Dearing provides a lot of analysis in his book, but engines were much weaker then, and there were no neural networks! 

I do not follow top-level games closely, but I cannot recall having seen this line essayed recently at that level. Maybe it's just unnecessarily risky when there are much more straightforward equalizers available. 

Does anyone know the current status of this variation? Is it still playable objectively? I haven't had the courage to play it in an OTB tournament yet, but I imagine that most of my opponents (say in the 1600-2200 range) won't really be prepared for it as White, and it certainly looks like fun! 

Cheers! 


BigTy
  
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