Answers.Body: <p>Because after <code>Nf6, e5</code> is a double attack on the <code>d6</code> bishop and the <code>f6</code> knight.</p>
  
  <p>The puzzle aside, given that black's dropping the piece anyway, may as well go for something practical, like <code>Nxg3, hxg3, Bxg3+...</code> and take 2 pawns for the piece, with some positional compensation as the king will be misplaced, but objectively white should of course be easily winning.</p>
  
  <pre><code> [Title "Puzzle"]
   [fen "rnbqk2r/ppp3pp/3b4/3p1p1n/3Pp3/1P2PPP1/P1P1B2P/RNBQK1NR w KQkq - 0 1"]
  
   1.fxe4 Nf6 (1...fxe4 2.Bxh5+) (1...Nxg3 2.hxg3 Bxg3+) 2.e5
  </code></pre>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-07-29T06:35:20.393Z
Answers.Text: That Bxg3 line can make things more difficult for black. Though the king has to run to d2, the center is closed and White can make use of an open f-file after 3...fxe4, or large central space gain after 3... dxe4 4. Bh5+ folllowed by an eventual c4.
Answers.UserDisplayName: Jossie Calderon
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-07-30T06:24:31.590Z
Answers.Text: With black's two pawns being passers, the game is unclear.  The main problem is that black can't castle after Bh5+.
Answers.UserDisplayName: Fred Knight
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-07-28T18:01:35.687Z
Answers.LastActivityDate: 2017-07-28T18:01:35.687Z
Answers.UserDisplayName: Ellie
Body: <p>I was solving puzzles and I failed this one.
  The correct answer was <code>fxe4 fxe4 Bxh5+</code>.
  Why can the knight not just move to <code>f6</code> and be safe there?</p>
  
  <p><code>fxe4 Nf6 exd5 fxd5</code> is in my opinion more preferable for black.</p>
  
  <pre><code> [Title "1...Nf6?"]
   [fen "rnbqk2r/ppp3pp/3b4/3p1p1n/3Pp3/1P2PPP1/P1P1B2P/RNBQK1NR w KQkq - 0 1"]
  </code></pre>
  
Tags: <analysis><puzzles>
Title: Why doesn't 1.fxe4 Nf6 work for black in this puzzle?
ThreadText: # Why doesn't 1.fxe4 Nf6 work for black in this puzzle?
  
  (Asked by: username_0 on 2017-07-28)
  
  I was solving puzzles and I failed this one.
  The correct answer was fxe4 fxe4 Bxh5+.
  Why can the knight not just move to f6 and be safe there?
  fxe4 Nf6 exd5 fxd5 is in my opinion more preferable for black.
   [Title "1...Nf6?"]
   [fen "rnbqk2r/ppp3pp/3b4/3p1p1n/3Pp3/1P2PPP1/P1P1B2P/RNBQK1NR w KQkq - 0 1"]
  
  **Tags:** analysis, puzzles
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2017-07-28. Score: 6 | Accepted answer
  
  Because after Nf6, e5 is a double attack on the d6 bishop and the f6 knight.
  The puzzle aside, given that black's dropping the piece anyway, may as well go for something practical, like Nxg3, hxg3, Bxg3+... and take 2 pawns for the piece, with some positional compensation as the king will be misplaced, but objectively white should of course be easily winning.
   [Title "Puzzle"]
   [fen "rnbqk2r/ppp3pp/3b4/3p1p1n/3Pp3/1P2PPP1/P1P1B2P/RNBQK1NR w KQkq - 0 1"]
  
   1.fxe4 Nf6 (1...fxe4 2.Bxh5+) (1...Nxg3 2.hxg3 Bxg3+) 2.e5
  
  > **Comments:**
  > **username_2**: That Bxg3 line can make things more difficult for black. Though the king has to run to d2, the center is closed and White can make use of an open f-file after 3...fxe4, or large central space gain after 3... dxe4 4. Bh5+ folllowed by an eventual c4.  
  > **username_3**: With black's two pawns being passers, the game is unclear.  The main problem is that black can't castle after Bh5+.  
  
  ---
  
  