Answers.Body: <p>I think the simple answer is preparation. <em>Perhaps</em> Anand invested significant time before the match in the open games and to suddenly switch to closed games might have been unsettling. </p>
  
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Answers.UserDisplayName: NoviceProgrammer
Answers.Body: <p>Before every important match, opponents are very carefully preparing their repertoire of openings/defenses. This not only include deeply training of known lines, but also their own analysis how to invent new continuation, that could suprise the opponent. Because when that happens it often leads to easy win.</p>
  
  <p>So even before the first move of first game they both know how they will play and even to what exactly continuation each one will want to proceed.</p>
  
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Answers.Body: <p>He couldn't play Najdorf, as Carlsen would have played 3.Bb5+ (as he did in the last match game). He also couldn't know that Carlsen would go for the Nimzo-Indian against 1.d4, it could as well have been a dry Queen's Gambit Declined.</p>
  
  <p>I think Anand's team had things prepared in various lines of the Berlin Defence, but not against the exact variations that Carlsen had chosen.</p>
  
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Answers.UserDisplayName: RemcoGerlich
Answers.Body: <p>One of Anand's strengths relative to Carlsen is better opening knowledge, and Anand also had the better analysis team. (UPDATE: According to Carlsen in a <a href="http://www.nrk.no/magasin/slik-jobbet-carlsen-bak-lukkede-dorer-1.12067080" rel="nofollow">recent interview</a>, his team of seconds during the Chennai match consisted of Hammer, Fressinet and Eljanov.) To repeat openings was a natural match strategy for him, trying to turn the match into an opening discussion.</p>
  
  <p>By varying openings, especially with white, Carlsen cleverly avoided most of Anand's preparation. The only set-up that was repeated was <code>d3</code> against the Berlin (played in two white games by Anand), but Anand couldn't find any weakness there. Anand has played <code>1.e4</code> most of his career, and it's understandable that he tried to catch Carlsen there. The one game Anand played <code>1.d4</code> he lost, although probably from a strong position.</p>
  
  <p>Yes, Anand should have taken more chances, but even with hindsight it is difficult to devise a  match strategy for him leading to success.   </p>
  
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Answers.CreationDate: 2013-11-27T15:12:18.287Z
Answers.Text: Carlsen never revealed his group of seconds so I am not sure if Anand indeed had a better analysis team.
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Answers.Text: Carlsen revealed in Norwegian media that he had no seconds in India, he only communicated with Hammer via Skype. Who, if anyone, was helping Hammer is still a secret. Hammer is a nice guy, but I doubt he has someone in the world elite working for him.
Answers.UserDisplayName: Dag Oskar Madsen
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Answers.Text: As good as Carlsen is, I simply find it hard to believe that he worked only with Hammer. I see that you are an FM yourself (wow). Were you helping him ;)
Answers.UserDisplayName: NoviceProgrammer
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Answers.CreationDate: 2013-11-27T15:43:12.023Z
Answers.Text: The only way I have helped Hammer is by losing against him several times over the years to build his confidence :)
Answers.UserDisplayName: Dag Oskar Madsen
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Answers.UserDisplayName: Dag Oskar Madsen
Body: <p>They played the Berlin defense and Ruy Lopez. Well the question is more like: why Anand insisted to play Ruy Lopez again and again. wouldn't be better if he had tried najdorf and nimzo indian earlier? I felt like Anand is giving Carlen the world championship as a thanksgiving gift! Why would a GM in a world championship be so stubborn. What was he hoping for and what was his plan by insisting to play the same opening?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2013-11-27T21:42:05.187Z
Comments.Text: You will be interested in Kasparov-Karpov opening war during their challenge for championship.
Comments.UserDisplayName: masoud
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2013-12-17T03:57:33.717Z
Comments.Text: 4 Ruys out of 10 games is nothing compared to what happened in Capablanca/Alekhine in 1927. They played 32 QGDs out of 34 games.
Comments.UserDisplayName: tzs
Tags: <opening><theory><world-championship><carlsen><anand>
Title: Why Anand and Carlsen insisted on playing the same opening/defense
ThreadText: # Why Anand and Carlsen insisted on playing the same opening/defense
  
  (Asked by: username_0 on 2013-11-26)
  
  They played the Berlin defense and Ruy Lopez. Well the question is more like: why Anand insisted to play Ruy Lopez again and again. wouldn't be better if he had tried najdorf and nimzo indian earlier? I felt like Anand is giving Carlen the world championship as a thanksgiving gift! Why would a GM in a world championship be so stubborn. What was he hoping for and what was his plan by insisting to play the same opening?
  
  **Tags:** opening, theory, world-championship, carlsen, anand
  
  > **Comments:**
  > **username_1**: You will be interested in Kasparov-Karpov opening war during their challenge for championship.  
  > **username_2**: 4 Ruys out of 10 games is nothing compared to what happened in Capablanca/Alekhine in 1927. They played 32 QGDs out of 34 games.  
  
  ---
  
  ## 4 answers
  
  ### Answer by username_6 on 2013-11-27. Score: 10 | Accepted answer
  
  One of Anand's strengths relative to Carlsen is better opening knowledge, and Anand also had the better analysis team. (UPDATE: According to Carlsen in a [recent interview](http://www.nrk.no/magasin/slik-jobbet-carlsen-bak-lukkede-dorer-1.12067080), his team of seconds during the Chennai match consisted of Hammer, Fressinet and Eljanov.) To repeat openings was a natural match strategy for him, trying to turn the match into an opening discussion.
  
  By varying openings, especially with white, Carlsen cleverly avoided most of Anand's preparation. The only set-up that was repeated was `d3` against the Berlin (played in two white games by Anand), but Anand couldn't find any weakness there. Anand has played `1.e4` most of his career, and it's understandable that he tried to catch Carlsen there. The one game Anand played `1.d4` he lost, although probably from a strong position.
  
  Yes, Anand should have taken more chances, but even with hindsight it is difficult to devise a match strategy for him leading to success.
  
  > **Comments:**
  > **username_3**: Carlsen never revealed his group of seconds so I am not sure if Anand indeed had a better analysis team.  
  > **username_6**: Carlsen revealed in Norwegian media that he had no seconds in India, he only communicated with Hammer via Skype. Who, if anyone, was helping Hammer is still a secret. Hammer is a nice guy, but I doubt he has someone in the world elite working for him.  
  > **username_3**: As good as Carlsen is, I simply find it hard to believe that he worked only with Hammer. I see that you are an FM yourself (wow). Were you helping him ;)  
  > **username_6**: The only way I have helped Hammer is by losing against him several times over the years to build his confidence :)  
  
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  ### Answer by username_3 on 2013-11-27. Score: 3
  
  I think the simple answer is preparation. *Perhaps* Anand invested significant time before the match in the open games and to suddenly switch to closed games might have been unsettling.
  
  
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  ### Answer by username_4 on 2013-11-26. Score: 2
  
  Before every important match, opponents are very carefully preparing their repertoire of openings/defenses. This not only include deeply training of known lines, but also their own analysis how to invent new continuation, that could suprise the opponent. Because when that happens it often leads to easy win.
  
  So even before the first move of first game they both know how they will play and even to what exactly continuation each one will want to proceed.
  
  
  ---
  
  ### Answer by username_5 on 2013-11-27. Score: 2
  
  He couldn't play Najdorf, as Carlsen would have played 3.Bb5+ (as he did in the last match game). He also couldn't know that Carlsen would go for the Nimzo-Indian against 1.d4, it could as well have been a dry Queen's Gambit Declined.
  
  I think Anand's team had things prepared in various lines of the Berlin Defence, but not against the exact variations that Carlsen had chosen.
  
  
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