Answers.Body: <p>I would recommend the <a href="http://chessok.com/?page_id=352" rel="nofollow">Chessok Opening Tree</a>.</p>
  
  <p>You can browse the lines you are interested in and see which moves have already been played (which at the beginning of an opening is almost every halfway sensible move). And most importantly you'll get an engine evaluation for each move, which immediately tells you which of these halfway sensible moves is a blunder. </p>
  
  <p>If you are further down the rabbit hole and the line has never been played before, of course you have to rely on your own chess understanding to come up with the most likely human moves and can then use an engine to find out how to punish them. Online, this would be possible on <a href="https://chess24.com/en/analysis" rel="nofollow">Chess24</a>, though as non premium member you might have to wait a while for the engine evaluation to come up.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-10-28T10:02:22.497Z
Answers.LastActivityDate: 2015-10-28T10:02:22.497Z
Answers.UserDisplayName: BlindKungFuMaster
Answers.Body: <p>Chessok sells a software product called the encyclopedia of chess opening blunders. Also game collection books about miniatures will likely have some games where someone made a mistake in opening and proceeds to get punished for it.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-10-29T07:19:34.997Z
Answers.LastActivityDate: 2015-10-29T07:19:34.997Z
Answers.UserDisplayName: Jerry Snitselaar
Body: <p>What are some good sources about exploiting wrong deviations from standard chess theory during the opening? That is, given the fact that the opponent steps out of the canonical openings, and is not innovating a variant with style and making it stronger.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-10-28T03:00:39.617Z
Comments.Text: chessgames.com, opening explorer
Comments.UserDisplayName: SmallChess
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-11-03T03:15:43.420Z
Comments.Text: Bear in mind that non-main lines are not necessarily "wrong". They may just be out of fashion, or less exciting, or drawish, or whatever.  Avoid the mistake of mentally expecting that you "deserve" to win the game because the opponent played an unexpected move.
Comments.UserDisplayName: M.M
Tags: <opening>
Title: Exploiting wrong deviations from theory in chess openings
ThreadText: # Exploiting wrong deviations from theory in chess openings
  
  (Asked by: username_0 on 2015-10-28)
  
  What are some good sources about exploiting wrong deviations from standard chess theory during the opening? That is, given the fact that the opponent steps out of the canonical openings, and is not innovating a variant with style and making it stronger.
  
  **Tags:** opening
  
  > **Comments:**
  > **username_1**: chessgames.com, opening explorer  
  > **username_2**: Bear in mind that non-main lines are not necessarily "wrong". They may just be out of fashion, or less exciting, or drawish, or whatever.  Avoid the mistake of mentally expecting that you "deserve" to win the game because the opponent played an unexpected move.  
  
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  ## 2 answers
  
  ### Answer by username_3 on 2015-10-28. Score: 1
  
  I would recommend the [Chessok Opening Tree](http://chessok.com/?page_id=352).
  
  You can browse the lines you are interested in and see which moves have already been played (which at the beginning of an opening is almost every halfway sensible move). And most importantly you'll get an engine evaluation for each move, which immediately tells you which of these halfway sensible moves is a blunder.
  
  If you are further down the rabbit hole and the line has never been played before, of course you have to rely on your own chess understanding to come up with the most likely human moves and can then use an engine to find out how to punish them. Online, this would be possible on [Chess24](https://chess24.com/en/analysis), though as non premium member you might have to wait a while for the engine evaluation to come up.
  
  
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  ### Answer by username_4 on 2015-10-29. Score: 0
  
  Chessok sells a software product called the encyclopedia of chess opening blunders. Also game collection books about miniatures will likely have some games where someone made a mistake in opening and proceeds to get punished for it.
  
  
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