Answers.Body: <p><code>Na6-b4-a6-b4</code> was a waiting strategy. Black lacked counterplay in the position, and there wasn't much else to do. ...Nxf3+ was a possibility but it would just open the g-file for White's rook.</p>
  
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Answers.CreationDate: 2017-05-16T17:16:39.330Z
Answers.Text: Why didn't he just exchange his light-squared bishop with the g6 knight, making it more difficult for white to break into the kingside?
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Answers.CreationDate: 2017-05-16T03:56:28.287Z
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Answers.Body: <p>In "Anatoly Karpov: My 300 Best Games" Karpov gives 31...Nb4?! as a dubious move, and suggests 31...Rb4 instead, with the clear idea that Bxb4 cxb4 and Nc5 gives black a bind on the queenside.</p>
  
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Body: <p><a href="http://www.chessgames.com/perl/chessgame?gid=1019420" rel="nofollow noreferrer">Andersson gives Karpov two tempi</a> (Na6-b4-a6-b4). Understandably, he moved his knight to b4 initially to attack the white bishop. But then he moved it back and forth! It was <strong>the 32nd move</strong> when he did this, so it is possible that it was due to time. Is there a subtler intention?</p>
  
Tags: <positional-play>
Title: Why did Andersson waste two tempi in this game?
ThreadText: # Why did Andersson waste two tempi in this game?
  
  (Asked by: username_0 on 2017-05-16)
  
  [Andersson gives Karpov two tempi](http://www.chessgames.com/perl/chessgame?gid=1019420) (Na6-b4-a6-b4). Understandably, he moved his knight to b4 initially to attack the white bishop. But then he moved it back and forth! It was **the 32nd move** when he did this, so it is possible that it was due to time. Is there a subtler intention?
  
  **Tags:** positional-play
  
  
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  ## 2 answers
  
  ### Answer by username_1 on 2017-05-16. Score: 2
  
  `Na6-b4-a6-b4` was a waiting strategy. Black lacked counterplay in the position, and there wasn't much else to do. ...Nxf3+ was a possibility but it would just open the g-file for White's rook.
  
  > **Comments:**
  > **username_0**: Why didn't he just exchange his light-squared bishop with the g6 knight, making it more difficult for white to break into the kingside?  
  
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  ### Answer by username_2 on 2017-05-16. Score: 0
  
  In "Anatoly Karpov: My 300 Best Games" Karpov gives 31...Nb4?! as a dubious move, and suggests 31...Rb4 instead, with the clear idea that Bxb4 cxb4 and Nc5 gives black a bind on the queenside.
  
  
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