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Very Hot Topic (More than 25 Replies) Cambridge Springs Defense (Read 14264 times)
FreeRepublic
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Re: Cambridge Springs Defense
Reply #26 - 12/06/17 at 17:56:18
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MNb wrote on 12/05/17 at 11:01:35:
As White I'd rather try a minory attack with 11.a3 h6 12.b4 Qc7 13.Nf3.


I apologize for not addressing this. I got distracted by other lines!

That is certainly reasonable. Here's a possible continuation:
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. cxd5 exd5 8. Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Nf6 11. a3 h6 12. b4 Qc7 13. Nf3, now Bd6 14. b5 O-O 15. bxc6 bxc6 16. h3 (to prevent Bg4) Bd7 17. Na4 Rfe8 18. Qc2 Qc8. The threat on h3 seems to give black dynamic counterplay. Again, I'm sure each side has alternatives and perhaps improvements.
  
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Re: Cambridge Springs Defense
Reply #25 - 12/06/17 at 17:50:08
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FreeRepublic wrote on 12/05/17 at 15:55:30:
As White I'd rather try a minory attack with 11.a3 h6 12.b4 Qc7 13.Nf3


I apologize for not addressing this. I got distracted by other lines!

That is certainly reasonable. Here's a possible continuation:
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. cxd5 exd5 8. Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Nf6 11. a3 h6 12. b4 Qc7 13. Nf3, now Bd6 14. b5 O-O 15. bxc6 bxc6 16. h3 (to prevent Bg4) Bd7 17. Na4 Rfe8 18. Qc2 Qc8. The threat on h3 seems to give black dynamic counterplay. Again, I'm sure each side has alternatives and perhaps improvements.
  
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Re: Cambridge Springs Defense
Reply #24 - 12/06/17 at 14:23:01
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MNb wrote on 12/06/17 at 08:21:28:
I don't get 11.e4 in your first line. Then the black bishops become active and the queen isn't so misplaced anymore.


Black is behind in development and still two moves from castling, so white is tempted to open the position with 11e4. However, as you rightly observed, the bishop and queen are brought into the game.

White has plenty of alternatives at every move, as does black. There is a thicket of variations.

In general, keeping the game closed gives black time to regroup. Here's an alternative from ChessPublishing:

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e3 Qa5 7. cxd5!? exd5 8.Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Nf6 11. f4!? h6 12. Nf3 Bg4 13. a3 Bd6 14. Qe1 Bxf3 15. gxf3.

This interesting line and position is judged to be slightly better for white by ChessPublishing. Stockfish disagrees and finds black equal.

Using my own eyes, I was a little surprised by 15gxf3, preferring 15Rxf3. On further consideration, the open g file could prove useful for white. I wondered it SF underestimated white's attacking potential. So I played on a little: 15. gxf3 O-O 16. Kh1 Rfe8 17. Qf2 c5 18. Rg1 Qd8 19. Bb5 Re7 and black is hanging in there.

We have looked pretty deep here and there are many alternatives and perhaps improvements along the way. But I have yet to see a position where I can judge black to be clearly worse off than the the QGD Exchange variation (which is no piece of cake either).
  
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MNb
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Re: Cambridge Springs Defense
Reply #23 - 12/06/17 at 08:21:28
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FreeRepublic wrote on 12/06/17 at 00:15:10:
Is the queen really misplaced when it brings pressure that later leads to winning the two bishops in an open position? (1st line with 8Bd3).

That's why I don't get 11.e4 in your first line. Then the black bishops become active and the queen isn't so misplaced anymore.

FreeRepublic wrote on 12/05/17 at 15:55:30:
black has obtained the two bishops. That's an accomplishment which offsets the loss of time from relocating the queen from a5.

Sure - but does it on top of this also compensate for a permanent weakness on c6, especially if White manages to keep the position closed (ie avoids e3-e4)? I don't think so. Rybka disagrees, but I think WHite has a nice persistent edge.
  

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Re: Cambridge Springs Defense
Reply #22 - 12/06/17 at 04:34:49
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I can't claim to have innovated. I found 360 games with 7c:d e:d. Nor is a transposition to the QGD exchange variation guaranteed; it can happen after after plausible play.

The line resembles the exchange variation - basically just another variation. No surprise really as this the QGD with cxd exd.

At first glance the black queen seems misplaced on a5. However the pressure on c3 forces a decision by white. He can play the natural 8Bd3 and give up the two bishops. I think that is what I would play.

Krzysztof Panczyk and Jacek Ilczuk (and I think others) prefer  8Nd2. It effectively discourages 8...Ne4. However, it costs a tempo, and takes a defender away from the king side.

I'm not convinced that 7cxd exd here is worse than the standard QGD exchange variation. However with so much theory and so many games involving 7cxd Nxd5, people are reluctant to look elsewhere.

An imperfect analogy is the Marshall counter gambit in the Ruy Lopez. The influence of Capablanca's victory over Marshall, relegated the counter gambit to the side lines for decades. Only after a few generations of chess players had passed did it become, arguably, the main line of the closed Ruy Lopez.

As Rod Serling said, "presented for your consideration." At present this line exists in a twilight zone, but perhaps it should come out into the light of day.
  
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Re: Cambridge Springs Defense
Reply #21 - 12/06/17 at 02:52:28
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I mean that if your claim is true and that Black can transpose back to a normal line of the Exchange (which I'm not entirely convinced of yet), that's interesting and important to note from a practical perspective.  But from a theoretical perspective, it could explain why the move has been dismissed, as it's (at best) not independent.

Interesting find, though.
  
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Re: Cambridge Springs Defense
Reply #20 - 12/06/17 at 00:15:10
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Is the queen really misplaced when it brings pressure that later leads to winning the two bishops in an open position? (1st line with 8Bd3).

In the second line, 9Nd2 seems to misplace a knight, especially as white may later sensibly defend his king side with 14Nf3. How bad can the position be when it has transposed to a standard exchange variation?
  
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Re: Cambridge Springs Defense
Reply #19 - 12/05/17 at 23:03:53
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FreeRepublic wrote on 12/05/17 at 15:55:30:
Theoreticians have dismissed 7cxd exd saying that it's the Exchange variation with black having misplaced his queen. I don't think it's so simple.


I think that's sufficient to dismiss its theoretical significance.  That doesn't mean that it isn't playable from a practical perspective, though, just that theoretical works are not going to spend much time analyzing it.
  
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Re: Cambridge Springs Defense
Reply #18 - 12/05/17 at 15:55:30
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MNb wrote on 12/05/17 at 11:01:35:
FreeRepublic wrote on 12/04/17 at 21:44:18:
But I think the almost universally rejected 7cxd exd is OK. Here's a sample:

7. cxd5 exd5 8. Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Nf6 11. e4 dxe4 12. Ngxe4 Be7 13. Nxf6+ Bxf6 14. Re1+ Be6 15. Bc4 and now black can castle on either side with his fair share of chances.

As White I'd rather try a minory attack with 11.a3 h6 12.b4 Qc7 13.Nf3.


Certainly a reasonable response. In general, this exchange variation Cambridge Springs resembles the Exchange variation of the QGD, with all its pros and cons.

Theoreticians have dismissed 7cxd exd saying that it's the Exchange variation with black having misplaced his queen. I don't think it's so simple.

If you consider the position after move 10, you see that black has obtained the two bishops. That's an accomplishment which offsets the loss of time from relocating the queen from a5.

The second line I gave:
7. cxd5 exd5 8. Nd2 Be7 9. Bd3 O-O 10. O-O Re8 11. Qc2 Nf8 12. Rab1 Qd8 13.b4 Bd6
After 14b5?! black has Bxh2ch 15Kxh2 Ng4ch and ...Qxg4ch.
So I gave a line above with 14h3. White could have defended without weakening his king side pawn structure by playing 14Nf3. This would have yielded an exact transposition to the QGD Exchange variation!

Krzysztof Panczyk and Jacek Ilczuk provided good analysis of 7c:d e:d in their book on the Cambridge Springs defense, published in 2003. I bought the book. It's a bargain at $9 from Kindle (electronic download) at Amazon.
  
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Re: Cambridge Springs Defense
Reply #17 - 12/05/17 at 11:01:35
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FreeRepublic wrote on 12/04/17 at 21:44:18:
But I think the almost universally rejected 7cxd exd is OK. Here's a sample:

7. cxd5 exd5 8. Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Nf6 11. e4 dxe4 12. Ngxe4 Be7 13. Nxf6+ Bxf6 14. Re1+ Be6 15. Bc4 and now black can castle on either side with his fair share of chances.

As White I'd rather try a minory attack with 11.a3 h6 12.b4 Qc7 13.Nf3.
  

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Re: Cambridge Springs Defense
Reply #16 - 12/04/17 at 21:44:18
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Black must attend to both tactical and positional considerations in the Queen's gambit declined. The Tartakover variation leads with positional considerations, development of pieces including the queen bishop. Plenty of tactics typically follow. I'm not so happy about black's chances if white responds to h6 with Bxf6.

The Cambridge Springs defense starts off tactically, but likewise black must eventually attend to the development of his queen's bishop.

My limited CS experience as black has both players solving tactical problems in unfamiliar positions. It's fun.

I'm discouraged by the results from 7cxd Nxd5. But I think the almost universally rejected 7cxd exd is OK. Here's a sample:

7. cxd5 exd5 8. Bd3 Ne4 9. O-O Nxg5 10. Nxg5 Nf6 11. e4 dxe4 12. Ngxe4 Be7 13. Nxf6+ Bxf6 14. Re1+ Be6 15. Bc4 and now black can castle on either side with his fair share of chances.

also

7. cxd5 exd5 8. Nd2 Be7 9. Bd3 O-O 10. O-O Re8 11. Qc2 Nf8 12. Rab1 Qd8 13.b4 Bd6 14. h3 h6 15. Bxf6 Qxf6 16. b5 Qg5 17. f4 Qd8 18. Rfe1 c5 19. Nxd5 cxd4 20. exd4 Be6
and black is OK.

Of course both players can vary in almost endless ways but, as far as I can tell, black is hanging in there in dynamic positions.
  
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Re: Cambridge Springs Defense
Reply #15 - 08/23/11 at 20:09:37
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Regarding that sequence, Paul Boersma's article had 16...cd 17. ed e5 and 16...Ba6 as leading to = or unclear (with a few annotated/cited games).

(edit:  the 16...Ba6 part is less clear; he did give one line as leading to +=.)
  
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D52: Re: Cambridge Springs Defense
Reply #14 - 08/23/11 at 19:12:56
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Here's the opening sequence in one of those correspondence games:

  
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Re: Cambridge Springs Defense
Reply #13 - 08/23/11 at 18:50:21
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My main reason for saying this was a couple of correspondence games I played where Black got ground down in long positional battles.

That, and the games that are available to everyone that seem to show White's edge.

Which begs the question: what games and analysis did the Yearbook article refer to that made it look like 11.a3 isn't good for white?
  
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Re: Cambridge Springs Defense
Reply #12 - 08/23/11 at 16:23:58
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I'm not sure what the basis is for saying that "Schandorff's" 11. a3 gives White "a tremendous pull"; a Yearbook article a few months ago didn't seem to think so, for example.
  
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Re: Cambridge Springs Defense
Reply #11 - 08/23/11 at 16:07:03
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NGU, if you read through the thread and peruse Aronian's 11.Bc4 and Schandorff's 11.a3, you will find that White has a tremendous pull in both lines.

The caveat is that White's edge requires a deft touch and a level of positional mastery rarely found below 2200 strength in OTB chess. Below about 2200, the Cambridge Springs should be just fine.
  
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Re: Cambridge Springs Defense
Reply #10 - 08/23/11 at 13:16:38
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For me this is an interesting thread since I've been stuggling with the CS as white. I used to get very good results with 1.d4 d5 2.c4 e6 3.Nc3 Nf6 5.Bg5 Nbd7 6.e3 Qa5 7.cd5: Nd5: 8.Qd2 N7b6 9.Bb3 Nc3: 10.bc3: Nd5 11.0-0 Qc3: 12.Qe2. But I'm playing a local FM on a regular basis who plays the better 8. ... Bb4 9.Rc1 and I have been struggling to achieve anything substantial with white. With white, you get good development and a centre, but if black defends carefully and throws in an appropriately timed e5 then he should be all right - or is he?
  
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Re: Cambridge Springs Defense
Reply #9 - 08/15/11 at 19:51:38
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I think the CS is under a cloud because white has more than one way to gain an advantage. Aronian's 11.Bc4 is certainly interesting, but White will still be fine even if this particular idea gets ground down.

Btw, the first example of 11.Bc4 that I have found was in Solak-Blagojevic (2005). Perhaps it should be known as Solak's novelty, not Aronian's?
  
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Re: Cambridge Springs Defense
Reply #8 - 08/15/11 at 08:34:20
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In the recent CBM (142 143) It seem that the cambridge-springs is 'under a cloud'.
Mainly because Aronian's novelty
  

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Re: Cambridge Springs Defense
Reply #7 - 03/29/11 at 19:50:39
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In CBM 118 and 119 Rogozenko did a two part repertoire for black in the Cambridge springs - basically covering 1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Nbd7 5 e3 c6 6 Nf3 Qa5 7 Nd2 and 1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Nbd7 5 e3 c6 6 Nf3 Qa5 7 cxd5.  For everything else you need something else, The Cambridge Springs by Krzysztof Panczyk & Jacek Ilczuk is OK.

I've seriously considered playing this opening for some time, but I'm always slightly unsure about the exchange variations.

trw, the pawn sac lines generally come after 1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Nbd7 5 e3 c6 6 Nf3 Qa5 7 cxd5, white is committed to several here e.g.

7 cxd5 Nxd5 8 Qd2 N7b6 9 Bd3 Nxc3 10 bxc3 Nd5 11 0-0 Qxc3 13 Qe2

and after

7 cxd5 Nxd5 8 Qd2 Bb4 9 Rc1 there are a host of similar lines after a sequence like a3 Bxc3 bxc3 Qxa3.  Kramnik-Bruzon, Turin Olympiad 2006 is a an example quoted by Schandorff.
  
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Re: Cambridge Springs Defense
Reply #6 - 03/29/11 at 19:01:12
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TN wrote on 03/29/11 at 14:18:16:
Reverse wrote on 03/29/11 at 06:14:36:
Is this still viable? Anyone know who the top players are who play this on a regular basis? Any theory changing novelties in the past few years?

The only point of reference I have on this line is from the starting out series by Mcdonald.


If you're after a very solid defence to 1.d4 then the Cambridge Springs is a decent option.

It's a great opening at lower levels as well, since most players below 2200 aren't willing to play the critical pawn sack lines.



which critical lines are you referring to? Can you post them?
  
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Re: Cambridge Springs Defense
Reply #5 - 03/29/11 at 16:27:05
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On the other hand, White can deviate till the last moment with cxd5, so Black has to be familiar with the dialectics of the Exchange Variation, especially if he's a  former semi-slav player.
  
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Re: Cambridge Springs Defense
Reply #4 - 03/29/11 at 14:18:16
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Reverse wrote on 03/29/11 at 06:14:36:
Is this still viable? Anyone know who the top players are who play this on a regular basis? Any theory changing novelties in the past few years?

The only point of reference I have on this line is from the starting out series by Mcdonald.


If you're after a very solid defence to 1.d4 then the Cambridge Springs is a decent option.

It's a great opening at lower levels as well, since most players below 2200 aren't willing to play the critical pawn sack lines.
  

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Re: Cambridge Springs Defense
Reply #3 - 03/29/11 at 14:13:41
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I'm not so sure that 11.Bc4  is the best idea for White here.  Schandorff considers 11.a3 to be "standard by now". Play usually continues with 11...Bc3 12.bc3 b6 13.c4 Qd2 14.Nd2 and then Black has a choice between 14....Ne7 and 14...N5f6.

I've seen this variation a couple of times in correspondence recently. I like White's game because the position seems to favor the player with the better positional judgement.

Either side can still win, so I can understand why it's popular with people like Shirov.

(Edited to correct a grammatical mistake.)
« Last Edit: 03/29/11 at 23:03:25 by Smyslov_Fan »  
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Re: Cambridge Springs Defense
Reply #2 - 03/29/11 at 11:09:20
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Believe the prolific Andrew MArtin has just brought a DVD out on this.
I think it's certainly playable at club level.
More playable the lower the level - as it's not straight forward to deal with.
  
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Re: Cambridge Springs Defense
Reply #1 - 03/29/11 at 07:05:25
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Shirov used it this year in Wijk aan Zee against Anand and Aronian. Against Anand he made a serious blunder, but against Arionian it was a fascinating struggle despite he lost that one as well. But this doesn't mean the Cambridge Springs is in theoretical trouble, just that Anand and Aronian are brilliant players.

[Event "Tata Steel"]
[Site "0:35:33-0:15:33"]
[Date "2011.01.26"]
[EventDate "2011.01.15"]
[Round "10"]
[Result "1-0"]
[White "Viswanathan Anand"]
[Black "Alexey Shirov"]
[ECO "D52"]
[WhiteElo "2804"]
[BlackElo "2735"]
[PlyCount "51"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.Bg5 Nbd7 6.e3 Qa5 7.cxd5
Nxd5 8.Qd2 Bb4 9.Rc1 h6 10.Bh4 c5 11.Bc4 Nxc3 12.bxc3 Ba3
13.Rb1 a6 14.Be2 O-O 15.O-O b5 16.c4 Bb4 17.Qc2 Bb7 18.Rfd1
bxc4 19.dxc5 Nxc5 20.Rd4 Rab8 21.Ne5 Bd5 22.Be7 Rfe8 23.Bd6
Rbd8 24.Bh5 Rxd6 25.Bxf7+ Kf8 26.Bxe8 1-0

[Event "Tata Steel"]
[Site "Wijk aan Zee NED"]
[Date "2011.01.25"]
[EventDate "2011.01.14"]
[Round "9"]
[Result "1-0"]
[White "Levon Aronian"]
[Black "Alexey Shirov"]
[ECO "D52"]
[WhiteElo "2805"]
[BlackElo "2722"]
[PlyCount "105"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5
7. cxd5 Nxd5 8. Qd2 Bb4 9. Rc1 h6 10. Bh4 c5 11. Bc4 cxd4
12. Qxd4 Bxc3+ 13. bxc3 O-O 14. O-O N5b6 15. Bb3 Re8 16. Rfd1
Qh5 17. Bg3 e5 18. Qb4 e4 19. Ne1 a5 20. Qd4 Nc5 21. Rb1 Nxb3
22. Qxb6 Nc5 23. c4 Be6 24. Rd5 Bxd5 25. Qxc5 Red8 26. cxd5
Qxd5 27. Qc2 b5 28. Qb2 b4 29. Be5 Qd2 30. Qa1 Qe2 31. Bd4
Rab8 32. h3 f6 33. Rb2 Qb5 34. Qb1 Qd5 35. Qd1 Rbc8 36. Rd2
Qe6 37. Kh2 Rd7 38. g3 Rdc7 39. Bb2 Qxa2 40. Be5 Qxd2 41. Qxd2
fxe5 42. Qd5+ Rf7 43. Kg2 Rcf8 44. h4 Kh8 45. Qxe4 Rxf2+
46. Kh3 b3 47. Nd3 b2 48. Qb7 R8f7 49. Qb5 a4 50. Nxb2 a3
51. Nd3 Rf1 52. Qa4 Rh1+ 53. Kg4 1-0
  
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Cambridge Springs Defense
03/29/11 at 06:14:36
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Is this still viable? Anyone know who the top players are who play this on a regular basis? Any theory changing novelties in the past few years?

The only point of reference I have on this line is from the starting out series by Mcdonald.
  
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