Answers.Body: <p>White loses if plays Na3, because Black is threatening with mate via Qe4. Black gains access to e4 with Bf5 move.</p>
  
  <pre><code>r1b1kb2/ppp4Q/8/3pp2n/3n3q/8/PPPP1PPP/RNB1KB1R w KQq - 1 10
  
  1. Na3 Bf5 $19 {Black is threatening with Qe4, which leads to mate or tons of material gain} 2. Bb5+ {To clear escaping square f1 for King, with tempo} (2. Qxc7?? Qe4+ 3. Kd1 Bg4 4. f3 Bxf3 5. gxf3 Qxf3 6. Ke1 Qe4 7. Kd1 Be7 {White is defenseless, Bh4 coming}) c6 3. Qxb7 Qe4+ 4. Kf1 cxb5
  5. Qxa8+ Kf7 6. Qxa7+ Be7 {White has no defense}
  </code></pre>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-01T17:38:01.940Z
Answers.LastActivityDate: 2016-01-01T17:38:01.940Z
Answers.UserDisplayName: ferit
Body: <p>I was watching a <a href="https://www.youtube.com/watch?v=CQofyVG4ZYY" rel="nofollow">YouTube video</a> which explains the <code>1. e4 Nc6 2. Nf3</code> line of the Nimzowitsch Defence. In that video, the presenter was talking as if after <code>9... Nd4</code>, white did not have any good move.</p>
  
  <pre><code>[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
  [StartPly "18"]
  
  1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. Nh4 e5 5. Qh5+ g6 6. fxg6 Nf6 7. g7+ Nxh5 8. gxh8=Q Qxh4 9. Qxh7 Nd4 10. Na3
  </code></pre>
  
  <p>However, I find that <code>10.Na3</code> is a better move for white than <code>10. Qxc7</code>  which was presented in the video. It prevents both <code>10... Qe4+</code> and also <code>10... Nc2+</code>.</p>
  
  <p>Please share your opinions.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-01-01T16:30:20.140Z
Comments.Text: After `10.Na3` Black simply plays `10...Bxa3` and wins the rook...
Comments.UserDisplayName: AlwaysLearningNewStuff
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-01-01T17:12:48.330Z
Comments.Text: I'm seeing `10...Bf5` and White's in for a hard day. After `10...Bxa3` I can't find a continuation for Black after Qg8+ and then Qxd5.
Comments.UserDisplayName: Tony Ennis
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2016-01-01T17:30:23.733Z
Comments.Text: Qg8+ Bf8    -+.........
Comments.UserDisplayName: limits
Tags: <opening><analysis>
Title: Nimzowitsch Defence - 1. e4 Nc6 2. Nf3 variation
ThreadText: # Nimzowitsch Defence - 1. e4 Nc6 2. Nf3 variation
  
  (Asked by: username_0 on 2016-01-01)
  
  I was watching a [YouTube video](https://www.youtube.com/watch?v=CQofyVG4ZYY) which explains the `1. e4 Nc6 2. Nf3` line of the Nimzowitsch Defence. In that video, the presenter was talking as if after `9... Nd4`, white did not have any good move.
  
  ```
  [FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
  [StartPly "18"]
  
  1. e4 Nc6 2. Nf3 f5 3. exf5 d5 4. Nh4 e5 5. Qh5+ g6 6. fxg6 Nf6 7. g7+ Nxh5 8. gxh8=Q Qxh4 9. Qxh7 Nd4 10. Na3
  
  ```
  
  However, I find that `10.Na3` is a better move for white than `10. Qxc7` which was presented in the video. It prevents both `10... Qe4+` and also `10... Nc2+`.
  
  Please share your opinions.
  
  **Tags:** opening, analysis
  
  > **Comments:**
  > **username_1**: After `10.Na3` Black simply plays `10...Bxa3` and wins the rook...  
  > **username_2**: I'm seeing `10...Bf5` and White's in for a hard day. After `10...Bxa3` I can't find a continuation for Black after Qg8+ and then Qxd5.  
  > **username_3**: Qg8+ Bf8    -+.........  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_4 on 2016-01-01. Score: 4
  
  White loses if plays Na3, because Black is threatening with mate via Qe4. Black gains access to e4 with Bf5 move.
  
  ```
  r1b1kb2/ppp4Q/8/3pp2n/3n3q/8/PPPP1PPP/RNB1KB1R w KQq - 1 10
  
  1. Na3 Bf5 $19 {Black is threatening with Qe4, which leads to mate or tons of material gain} 2. Bb5+ {To clear escaping square f1 for King, with tempo} (2. Qxc7?? Qe4+ 3. Kd1 Bg4 4. f3 Bxf3 5. gxf3 Qxf3 6. Ke1 Qe4 7. Kd1 Be7 {White is defenseless, Bh4 coming}) c6 3. Qxb7 Qe4+ 4. Kf1 cxb5
  5. Qxa8+ Kf7 6. Qxa7+ Be7 {White has no defense}
  
  ```
  
  
  ---
  
  