Answers.Body: <p>Well, for one thing, Nf6 leaves the bishop on b7 hanging, and upon taking it, the queen will be attacking both the rook on a8 and the knight on b4.</p>
  
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Answers.Text: Right, it drops the bishop. Although after Qxb7 Rad8, the N on b4 is not really under threat because of the Rd1+ discovery. However something like Bf5 or Bg6 followed up by Kh2 and/or Qf3 looks really nasty for black.
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Answers.Body: <p>Nf6 is followed by e.g.:</p>
  
  <pre><code>[FEN "r4b1k/1b4p1/p2r1n2/8/Pnp1Q3/6RP/1B3PP1/1B4K1 w - - 0 1"]
  
  1. Qh4+ Kg8 2. Bxf6 Rxf6 3. Qxf6
  </code></pre>
  
  <p>with not only huge material advantage for white, but also some very nasty threats that are ultimately not defendable. So in short, there is not much to gain with Nf6.</p>
  
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Body: <p>I have watched <a href="https://www.youtube.com/watch?v=SMe-hvCwTRo" rel="nofollow">this</a> video, where Kasparov explains the variations after his knight sacrifice. However, the position he analyses starting from 3:08, I think I am missing something.</p>
  
  <p><strong>Kasparov vs Karpov, 1990 World Finals</strong></p>
  
  <pre><code>[FEN "r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1"]
  
  1. Nxh6 Rxh6 2. Nxd6 Qxe1+ 3. Qxe1 Rxd6 4. Qe4 Nd3
  </code></pre>
  
  <p>What if black plays </p>
  
  <pre><code>[FEN "r4b1k/1b4p1/p2r4/3n4/Pnp1Q3/6RP/1B3PP1/1B4K1 b - - 0 1"]
  
  1... Nf6
  </code></pre>
  
  <p>instead of Nd3? Can't he both attack queen and defend h7 square? His chances of survival is so low, obviously, but I think Nf6 is better than Nd3, and worth analyzing.</p>
  
Tags: <analysis><grandmaster>
Title: Could Karpov defend against Kasparov in 1990 championship?
ThreadText: # Could Karpov defend against Kasparov in 1990 championship?
  
  (Asked by: username_0 on 2016-01-26)
  
  I have watched [this](https://www.youtube.com/watch?v=SMe-hvCwTRo) video, where Kasparov explains the variations after his knight sacrifice. However, the position he analyses starting from 3:08, I think I am missing something.
  
  **Kasparov vs Karpov, 1990 World Finals**
  
  ```
  [FEN "r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1"]
  
  1. Nxh6 Rxh6 2. Nxd6 Qxe1+ 3. Qxe1 Rxd6 4. Qe4 Nd3
  
  ```
  
  What if black plays
  
  ```
  [FEN "r4b1k/1b4p1/p2r4/3n4/Pnp1Q3/6RP/1B3PP1/1B4K1 b - - 0 1"]
  
  1... Nf6
  
  ```
  
  instead of Nd3? Can't he both attack queen and defend h7 square? His chances of survival is so low, obviously, but I think Nf6 is better than Nd3, and worth analyzing.
  
  **Tags:** analysis, grandmaster
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_3 on 2016-01-27. Score: 4 | Accepted answer
  
  Nf6 is followed by e.g.:
  
  ```
  [FEN "r4b1k/1b4p1/p2r1n2/8/Pnp1Q3/6RP/1B3PP1/1B4K1 w - - 0 1"]
  
  1. Qh4+ Kg8 2. Bxf6 Rxf6 3. Qxf6
  
  ```
  
  with not only huge material advantage for white, but also some very nasty threats that are ultimately not defendable. So in short, there is not much to gain with Nf6.
  
  
  ---
  
  ### Answer by username_1 on 2016-01-26. Score: 2
  
  Well, for one thing, Nf6 leaves the bishop on b7 hanging, and upon taking it, the queen will be attacking both the rook on a8 and the knight on b4.
  
  > **Comments:**
  > **username_2**: Right, it drops the bishop. Although after Qxb7 Rad8, the N on b4 is not really under threat because of the Rd1+ discovery. However something like Bf5 or Bg6 followed up by Kh2 and/or Qf3 looks really nasty for black.  
  
  ---
  
  