Answers.Body: <p>Ideally, what does Black wants to do? He wants to put the Queen on g2. But that square is protected by the Knight on e3. The knight must be removed. If the pawn is recaptured then it will be mate. If the bishop recapture, the Queen will get captured. So, black is up material.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-03-18T15:21:35.960Z
Answers.LastActivityDate: 2013-03-18T15:21:35.960Z
Answers.UserDisplayName: iamlam
Answers.Body: <p>In the previous example, it is more about removing the defender (the Knight on e3 defends g2).
  so:
  - the recapture with the pawn does not work as it allows Qg2#
  - additionally, the Bishop is pinned on d2 because of the a2-Queen
  So a combination of pins and removing the defender  would say</p>
  
  <p>Deflections on the other hand happen when a piece is driven away from an important square, for instance, here, the d8 Rook isdeflected from the defense of the Queen d5:
  <img src="https://i.sstatic.net/WRJej.png" alt="enter image description here"></p>
  
  <ol>
  <li>Re8+ ! Rxd8 2. Qxd5</li>
  </ol>
  
  <p>more on deflections on my blog post: <a href="http://chesstrainerapp.blogspot.fr/2014/01/deflection.html" rel="nofollow noreferrer">http://chesstrainerapp.blogspot.fr/2014/01/deflection.html</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-11-30T10:12:47.233Z
Answers.Text: Removing defender is not quite the tactic involved. Undermining would be a better word here I guess (still, i feel like only pin is involved; not even opening lines[of attack] ).
Answers.UserDisplayName: Cyriac Antony
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-01-29T14:19:17.490Z
Answers.Text: Isn't 1.Qxd5 a better move? 1...Rxd5 isn't possible because of 2.Re8#, and I'd rather play Q+R v R than Q v R. And it's still deflection, I think.
Answers.UserDisplayName: RemcoGerlich
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Answers.CreationDate: 2014-01-29T13:40:22.590Z
Answers.LastActivityDate: 2014-01-29T13:40:22.590Z
Answers.UserDisplayName: Simon Louchart
Answers.Body: <p><code>1...R8xe3</code> wins a piece (the knight on e3), because either recapture leads to worse things for White, since the d2 bishop is pinned to the white queen, and the f-pawn recapture opens the possibility of mate on g2:</p>
  
  <pre><code>[fen "4rbk1/pp3pp1/1nq4p/8/1PP5/P3N1P1/Q2BrP1P/3R1RK1 b - - 0 1"]
  
  1...R8xe3 2.Bxe3 (2.fxe3 Qg2#) Rxa2 
  </code></pre>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2013-03-13T22:03:50.620Z
Answers.LastActivityDate: 2013-03-13T22:03:50.620Z
Answers.UserDisplayName: ETD
Body: <p>Black to move:</p>
  
  <pre><code>[fen "4rbk1/pp3pp1/1nq4p/8/1PP5/P3N1P1/Q2BrP1P/3R1RK1 b - - 0 1"]
  </code></pre>
  
  <p>I've tried to solve this chess problem - black to move, find the best move. I couldn't work it out so I checked the solution, which was R8xe3. I don't understand why this is the best move - could someone explain please?</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2013-03-14T07:08:13.483Z
Comments.Text: Once you were considering R8xe3, did you actually try the various responses from white?  In this case, there are only two main simple options, both of which are short.  Being methodical can often help, and lead you to a general conclusion like "ah, I see, white has no way to win back the knight, so unless they have a greater counter-threat...".  What may be a bit tricky here is that the question is presented as a "winning move", which may easily be mistaken for mate / major piece loss, not "just" a knight; so you're probably not considering everything.  That's an important lesson too!
Comments.UserDisplayName: Daniel B
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-11-30T10:08:23.947Z
Comments.Text: @ajax333221 there is no deflection here. Pin is the main tactic involved. Deflection is about duty -- some piece is distracted from its duty.
Comments.UserDisplayName: Cyriac Antony
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2018-12-01T01:48:10.557Z
Comments.Text: "deflection: tactic that forces an opposing piece to leave the square, rank or file it occupies" you are right, there is no 100% true deflection here, but the pawn and bishop are not truly pinned neither. So don't know whats that called but yea..
Comments.UserDisplayName: ajax333221
Tags: <learning><tactics><problems>
Title: Chess problem - don't understand the solution
ThreadText: # Chess problem - don't understand the solution
  
  (Asked by: username_0 on 2013-03-13)
  
  Black to move:
  [fen "4rbk1/pp3pp1/1nq4p/8/1PP5/P3N1P1/Q2BrP1P/3R1RK1 b - - 0 1"]
  
  I've tried to solve this chess problem - black to move, find the best move. I couldn't work it out so I checked the solution, which was R8xe3. I don't understand why this is the best move - could someone explain please?
  
  **Tags:** learning, tactics, problems
  
  > **Comments:**
  > **username_1**: Once you were considering R8xe3, did you actually try the various responses from white?  In this case, there are only two main simple options, both of which are short.  Being methodical can often help, and lead you to a general conclusion like "ah, I see, white has no way to win back the knight, so unless they have a greater counter-threat...".  What may be a bit tricky here is that the question is presented as a "winning move", which may easily be mistaken for mate / major piece loss, not "just" a knight; so you're probably not considering everything.  That's an important lesson too!  
  > **username_2**: @username_3 there is no deflection here. Pin is the main tactic involved. Deflection is about duty -- some piece is distracted from its duty.  
  > **username_3**: "deflection: tactic that forces an opposing piece to leave the square, rank or file it occupies" you are right, there is no 100% true deflection here, but the pawn and bishop are not truly pinned neither. So don't know whats that called but yea..  
  
  ---
  
  ## 3 answers
  
  ### Answer by username_7 on 2013-03-13. Score: 26 | Accepted answer
  
  1...R8xe3 wins a piece (the knight on e3), because either recapture leads to worse things for White, since the d2 bishop is pinned to the white queen, and the f-pawn recapture opens the possibility of mate on g2:
  [fen "4rbk1/pp3pp1/1nq4p/8/1PP5/P3N1P1/Q2BrP1P/3R1RK1 b - - 0 1"]
  
  1...R8xe3 2.Bxe3 (2.fxe3 Qg2#) Rxa2
  
  
  ---
  
  ### Answer by username_4 on 2013-03-18. Score: 4
  
  Ideally, what does Black wants to do? He wants to put the Queen on g2. But that square is protected by the Knight on e3. The knight must be removed. If the pawn is recaptured then it will be mate. If the bishop recapture, the Queen will get captured. So, black is up material.
  
  
  ---
  
  ### Answer by username_5 on 2014-01-29. Score: 0
  
  In the previous example, it is more about removing the defender (the Knight on e3 defends g2).
  so:
  - the recapture with the pawn does not work as it allows Qg2#
  - additionally, the Bishop is pinned on d2 because of the a2-Queen
  So a combination of pins and removing the defender would say
  
  Deflections on the other hand happen when a piece is driven away from an important square, for instance, here, the d8 Rook isdeflected from the defense of the Queen d5:
  ![enter image description here](https://i.sstatic.net/WRJej.png)
  
  1. Re8+ ! Rxd8 2. Qxd5
  
  more on deflections on my blog post: <http://chesstrainerapp.blogspot.fr/2014/01/deflection.html>
  
  > **Comments:**
  > **username_6**: Isn't 1.Qxd5 a better move? 1...Rxd5 isn't possible because of 2.Re8#, and I'd rather play Q+R v R than Q v R. And it's still deflection, I think.  
  > **username_2**: Removing defender is not quite the tactic involved. Undermining would be a better word here I guess (still, i feel like only pin is involved; not even opening lines[of attack] ).  
  
  ---
  
  