Answers.Body: <p>The main point is that 1...Nxf2 draws White's king out to the vulnerable f2-square; this allows Black to hold the balance. After 2.Kxf2 fxg4 3.Rg1, Black can give a perpetual with 3...Qh4+! 4.Ke3 (4.Rg3 can be met with 4...exf3, as Rxg7+ is impossible) 4...Qh6+ 5.Kf2 Qh4+.</p>
  
  <p>Meanwhile, 1...fxg4? 2.Qxe4 gxf3 3.Rg1 (hitting the g7-pawn) 3...Rf7 4.0-0-0 gives White a serious initiative. His king is safe enough on the queenside, and his pieces are pointed at Black's king. Also, note that Qxc6 is threatened, winning a piece, since on ...dxc6 White has Rxd8+.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-10T19:53:15.340Z
Answers.Text: Is g6 possible instead of Rf7?
Answers.UserDisplayName: bretlee
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-10T19:57:55.077Z
Answers.Text: 3 ... g6 4 b5 Ne7 (or Na5) 5 Qe5 and black can't stop mate
Answers.UserDisplayName: Alexander Woo
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Answers.CreationDate: 2020-06-10T20:14:28.870Z
Answers.Text: @ Alexander Woo Even better: 4.Rxg6+ Kf7 (4...hxg6 5.Qxg6+ Kh8 6.Qh7#) 5.Rg7+ Ke8 6.Qxh7.
Answers.UserDisplayName: Inertial Ignorance
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Answers.CreationDate: 2020-06-10T18:59:44.977Z
Answers.LastActivityDate: 2020-06-10T18:59:44.977Z
Answers.UserDisplayName: Inertial Ignorance
Body: <pre><code>[FEN "r1bq1rk1/p2p2pp/1pn1p3/5p2/1PP1n1P1/P4N2/1BQ1PP1P/R3KB1R b - - 0 1"]
  </code></pre>
  
  <p>Here, 1... fxg4 gives White an advantage. But 1...Nxf2 2.Kxf2 fxg4 is equal. Why is that?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-06-11T09:14:57.240Z
Comments.Text: Different moves resulting in different outcomes is something normal at chess
Comments.UserDisplayName: David
Tags: <analysis><strategy><positional-play>
Title: Why this move is good here but not few moves ago?
ThreadText: # Why this move is good here but not few moves ago?
  
  (Asked by: username_0 on 2020-06-10)
  
  ```
  [FEN "r1bq1rk1/p2p2pp/1pn1p3/5p2/1PP1n1P1/P4N2/1BQ1PP1P/R3KB1R b - - 0 1"]
  
  ```
  
  Here, 1... fxg4 gives White an advantage. But 1...Nxf2 2.Kxf2 fxg4 is equal. Why is that?
  
  **Tags:** analysis, strategy, positional-play
  
  > **Comments:**
  > **username_1**: Different moves resulting in different outcomes is something normal at chess  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2020-06-10. Score: 5 | Accepted answer
  
  The main point is that 1...Nxf2 draws White's king out to the vulnerable f2-square; this allows Black to hold the balance. After 2.Kxf2 fxg4 3.Rg1, Black can give a perpetual with 3...Qh4+! 4.Ke3 (4.Rg3 can be met with 4...exf3, as Rxg7+ is impossible) 4...Qh6+ 5.Kf2 Qh4+.
  
  Meanwhile, 1...fxg4? 2.Qxe4 gxf3 3.Rg1 (hitting the g7-pawn) 3...Rf7 4.0-0-0 gives White a serious initiative. His king is safe enough on the queenside, and his pieces are pointed at Black's king. Also, note that Qxc6 is threatened, winning a piece, since on ...dxc6 White has Rxd8+.
  
  > **Comments:**
  > **username_0**: Is g6 possible instead of Rf7?  
  > **username_3**: 3 ... g6 4 b5 Ne7 (or Na5) 5 Qe5 and black can't stop mate  
  > **username_2**: @ username_3 Even better: 4.Rxg6+ Kf7 (4...hxg6 5.Qxg6+ Kh8 6.Qh7#) 5.Rg7+ Ke8 6.Qxh7.  
  
  ---
  
  