Answers.Body: <p>An en passant capture is just a capture. There are no special rules other than its definition, as described in the question. Put another way, you capture the pawn as if it had only moved forward one space.</p>
  
  <p>Of course, the capture isn't exempt from the rest of the rules. For example, you can't make a move that leaves your king in check, so you can't make an en passant capture that leaves your king in check. But there's nothing special about en passant captures here; all the usual rules apply.</p>
  
  <p>And, yes, the rule applies in tournaments. Don't think of en passant captures as something special; despite the seeming quirkiness, they're no more special than castling, which also has its own quirky rules.</p>
  
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Answers.CreationDate: 2014-09-30T13:17:36.533Z
Answers.Text: Downvoter, please explain why.
Answers.UserDisplayName: Pete Becker
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Answers.Text: I didn't downvote, but your most important omission is the rule that it can only be used immediately following the captured pawn's move.
Answers.UserDisplayName: DJClayworth
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Answers.UserDisplayName: Pete Becker
Answers.Body: <p>The en passant is subject to all the usual rules of chess. So you cannot use it if it would be illegal to move your pawn (for example if your king is in check and the move would not get you out of check, or if the moving pawn is pinned to the king, etc.). It is part of the official rules of chess, and is absolutely allowed in tournaments.</p>
  
  <p>There is one important additional rule about en passant: <strong>it can only be used on the move following the move of the captured pawn</strong>. (<a href="http://www.fide.com/component/handbook/?id=124&amp;view=article" rel="nofollow noreferrer">Rule 3.7d</a>) You cannot wait a few moves and then use the en passant capture.</p>
  
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Answers.CreationDate: 2014-06-23T19:48:59.103Z
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Answers.UserDisplayName: DJClayworth
Answers.Body: <p>The best way to think of en passant is that it's a normal move in all regards, except that the opportunity to play it expires on that move.</p>
  <p>The move can be carried out so long as it doesn't break any rules, just like any other move. So it can be used to block a check, give a check, give a checkmate, etc. But let's say your pawn is pinned to your king. If performing an en passant capture with it leaves your king exposed to an enemy attack, this is illegal and thus not allowed (istg).</p>
  
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Answers.UserDisplayName: Inertial Ignorance
Answers.Body: <p>You can't take a pawn en passant if that pawn just made a discovered check to your King:</p>
  
  <pre><code>8/8/7k/8/2p5/8/3P4/2B1K3 w - - 0 1
  
  1. d4+
  </code></pre>
  
  <p>After 1. d4+ Black is in check (their king is attacked by the White bishop on c1) so he has to move his King. 1...cxd3 is not allowed.</p>
  
  <p>Also, it can't be carried out if your pawn is pinned to your king:</p>
  
  <pre><code>6k1/8/8/8/2p5/8/B2P4/4K3 w - - 0 1
  
  1. d4
  </code></pre>
  
  <p>The Black pawn on c4 is pinned by the White Bishop on a2. If that Pawn moves, the White Bishop would be able to take the Black King. So after 1. d4 the move 1...cxd3 is not allowed.</p>
  
  <p>I can't think of any other condition where this move can not be carried out.</p>
  
  <p>And yes, en passant is allowed in tournaments of course. But when you take a pawn en passant, do not say "en passant" aloud (some low rated players do that, they also say "check" aloud when they put the other player's king in check) since it can break your opponent's concentration (and the concentration of the other players near you in the playing hall).</p>
  
  <p>Wikipedia has a good article on the <a href="//en.wikipedia.org/wiki/En_passant" rel="nofollow noreferrer">en passant rule</a>.</p>
  
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Answers.Text: I think it would be helpful to mention that it can be done only on the succeeding move. It's a restriction like no other in the game.
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Answers.Text: It's also possible for "both pawns" to be pinned horizontally to the king. Using the pawns as in your examples, it's then possible for white to have pushed d2-d4 (the black pawn on c4 was blocking the check, so the preceding position is legal) and it's legal for black to play any other pawn move (when the pawn on c4 moves, the white pawn on d4 is blocking the check). But taking en-passant removes both pawns from the fourth row and exposes the black king to check, so is illegal.
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Answers.Text: It's not possible to make a pin that only goes through the taken pawn, since either the pin would have to go through a diagonal (The previous position wasn't legal because the black king would be in check before the white pawn moves) or it would have to be a pin on the file (the taking pawn replaces the taken one on the file and still blocks the check).
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Answers.Text: Your first two statements are true. But they are needless, because they are already covered by the rule that the turn player may not leave their own king in check.
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Body: <p>This manoeuvre is a form of pawn capturing technique. When a player’s pawn jumps two spaces on a first move, that piece can then be taken from the side as the opposing pawn moves into the moving pawn’s “lane” behind it, capturing it.</p>
  
  <p>My question is, are there any other conditions where this move cannot be carried out such as to prevent check or checkmate or to carry out a check or checkmate?</p>
  
  <p>Also, is this move allowed in tournaments and the like?</p>
  
Tags: <rules><tournament><en-passant>
Title: When is it possible to carry out the "En Passant" manoeuvre?
ThreadText: # When is it possible to carry out the "En Passant" manoeuvre?
  
  (Asked by: username_0 on 2014-06-23)
  
  This manoeuvre is a form of pawn capturing technique. When a player’s pawn jumps two spaces on a first move, that piece can then be taken from the side as the opposing pawn moves into the moving pawn’s “lane” behind it, capturing it.
  
  My question is, are there any other conditions where this move cannot be carried out such as to prevent check or checkmate or to carry out a check or checkmate?
  
  Also, is this move allowed in tournaments and the like?
  
  **Tags:** rules, tournament, en-passant
  
  
  ---
  
  ## 4 answers
  
  ### Answer by username_4 on 2014-06-23. Score: 9 | Accepted answer
  
  You can't take a pawn en passant if that pawn just made a discovered check to your King:
  8/8/7k/8/2p5/8/3P4/2B1K3 w - - 0 1
  
  1. d4+
  
  After 1. d4+ Black is in check (their king is attacked by the White bishop on c1) so he has to move his King. 1...cxd3 is not allowed.
  Also, it can't be carried out if your pawn is pinned to your king:
  6k1/8/8/8/2p5/8/B2P4/4K3 w - - 0 1
  
  1. d4
  
  The Black pawn on c4 is pinned by the White Bishop on a2. If that Pawn moves, the White Bishop would be able to take the Black King. So after 1. d4 the move 1...cxd3 is not allowed.
  I can't think of any other condition where this move can not be carried out.
  And yes, en passant is allowed in tournaments of course. But when you take a pawn en passant, do not say "en passant" aloud (some low rated players do that, they also say "check" aloud when they put the other player's king in check) since it can break your opponent's concentration (and the concentration of the other players near you in the playing hall).
  Wikipedia has a good article on the en passant rule.
  
  > **Comments:**
  > **username_2**: I think it would be helpful to mention that it can be done only on the succeeding move. It's a restriction like no other in the game.  
  > **username_5**: It's also possible for "both pawns" to be pinned horizontally to the king. Using the pawns as in your examples, it's then possible for white to have pushed d2-d4 (the black pawn on c4 was blocking the check, so the preceding position is legal) and it's legal for black to play any other pawn move (when the pawn on c4 moves, the white pawn on d4 is blocking the check). But taking en-passant removes both pawns from the fourth row and exposes the black king to check, so is illegal.  
  > **username_5**: It's not possible to make a pin that only goes through the taken pawn, since either the pin would have to go through a diagonal (The previous position wasn't legal because the black king would be in check before the white pawn moves) or it would have to be a pin on the file (the taking pawn replaces the taken one on the file and still blocks the check).  
  > **username_6**: Your first two statements are true. But they are needless, because they are already covered by the rule that the turn player may not leave their own king in check.  
  
  ---
  
  ### Answer by username_1 on 2014-06-23. Score: 9
  
  An en passant capture is just a capture. There are no special rules other than its definition, as described in the question. Put another way, you capture the pawn as if it had only moved forward one space.
  
  Of course, the capture isn't exempt from the rest of the rules. For example, you can't make a move that leaves your king in check, so you can't make an en passant capture that leaves your king in check. But there's nothing special about en passant captures here; all the usual rules apply.
  
  And, yes, the rule applies in tournaments. Don't think of en passant captures as something special; despite the seeming quirkiness, they're no more special than castling, which also has its own quirky rules.
  
  > **Comments:**
  > **username_1**: Downvoter, please explain why.  
  > **username_2**: I didn't downvote, but your most important omission is the rule that it can only be used immediately following the captured pawn's move.  
  
  ---
  
  ### Answer by username_2 on 2014-06-23. Score: 5
  
  The en passant is subject to all the usual rules of chess. So you cannot use it if it would be illegal to move your pawn (for example if your king is in check and the move would not get you out of check, or if the moving pawn is pinned to the king, etc.). It is part of the official rules of chess, and is absolutely allowed in tournaments.
  
  There is one important additional rule about en passant: **it can only be used on the move following the move of the captured pawn**. ([Rule 3.7d](http://www.fide.com/component/handbook/?id=124&view=article)) You cannot wait a few moves and then use the en passant capture.
  
  
  ---
  
  ### Answer by username_3 on 2019-09-21. Score: 3
  
  The best way to think of en passant is that it's a normal move in all regards, except that the opportunity to play it expires on that move.
  
  The move can be carried out so long as it doesn't break any rules, just like any other move. So it can be used to block a check, give a check, give a checkmate, etc. But let's say your pawn is pinned to your king. If performing an en passant capture with it leaves your king exposed to an enemy attack, this is illegal and thus not allowed (istg).
  
  
  ---
  
  