Answers.Body: <p>While the position might seem like it has been reached 3 times at that point, that is actually only the second time they have reached that position because the first time they were in this position, before the kings had moved, they had the ability to castle. So the position has only occurred twice where they can't castle as of move 5, and it has only had the exact same position twice in a row. They then needed to play it one more time so that they have had the same position three times where they haven't had the ability to castle.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-03T00:39:13.473Z
Answers.Text: Thanks, that makes a lot of sense. I didn’t know this was part of the threefold-repetition requirements
Answers.UserDisplayName: Florian Wendelborn
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-03T02:24:03.987Z
Answers.Text: Yes a similar argument applies after move 5.5, because Black still had castling rights after move 1.5
Answers.UserDisplayName: Laska
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-03T18:34:53.607Z
Answers.Text: yeah, who's turn it is to move is also important, if you reach the same position three times but in two of them its white to move and in one its black to move, then that wouldn't be threefold repetition either.
Answers.UserDisplayName: brekker
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-03T20:18:58.880Z
Answers.Text: Also, both players can choose to "not trigger" by playing on, only a fivefold repetition is an automatic draw.
Answers.UserDisplayName: Hauke Reddmann
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-04T01:02:35.397Z
Answers.Text: @HaukeReddmann is that a lichess feature? or do you mean otb? on chess.com it will automatically draw at 3
Answers.UserDisplayName: brekker
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-04T07:48:19.687Z
Answers.Text: @brekker: Indeed OTB FIDE rules (5x) and chess site rules (whatever they implement) may differ here.
Answers.UserDisplayName: Hauke Reddmann
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-09-13T19:57:25.200Z
Answers.Text: Your opponent can also accept an invalid claim as a draw, however this might be against the Sofia rules.
Answers.UserDisplayName: Ferazhu
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-08-02T21:43:43.100Z
Answers.LastActivityDate: 2022-08-02T21:49:31.273Z
Answers.LastEditDate: 2022-08-02T21:49:31.273Z
Answers.UserDisplayName: brekker
Body: <p>As far as I can tell, the position is the same after move 1, after move 3, and after move 5, so why does the game last until move 6 is done? Did it not get claimed as a draw by either player?</p>
  <pre><code>[fen &quot;rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1&quot;]
  [Event &quot;Magnus Carlsen Invitational&quot;]
  [Site &quot;chess24.com INT&quot;]
  [Date &quot;2021.03.15&quot;]
  [EventDate &quot;2021.03.13&quot;]
  [Round &quot;15.3&quot;]
  [Result &quot;1/2-1/2&quot;]
  [White &quot;Magnus Carlsen&quot;]
  [Black &quot;Hikaru Nakamura&quot;]
  [ECO &quot;C20&quot;]
  [WhiteElo &quot;2847&quot;]
  [BlackElo &quot;2736&quot;]
  [PlyCount &quot;12&quot;]
  
  1. e4 e5 2. Ke2 Ke7 3. Ke1 Ke8 4. Ke2 Ke7 5. Ke1 Ke8 6. Ke2
  Ke7 1/2-1/2
  </code></pre>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-03T08:31:06.543Z
Comments.Text: Think I [broke it](https://user-images.githubusercontent.com/16495490/182562182-f0bc7566-64b7-4010-b8f5-806d6cc9dac8.mp4)
Comments.UserDisplayName: OverLordGoldDragon
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-03T13:01:50.510Z
Comments.Text: also this game was played online (I watched it live) so there was no need for either player to claim a draw as the computer would've automatically
Comments.UserDisplayName: brekker
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-03T17:22:09.420Z
Comments.Text: ...Why did they do this?  If they were intentionally playing to draw as it seems they were, why not just move knights back and forth and be done a move earlier?  Unless there's some other reason to have done this?
Comments.UserDisplayName: Darrel Hoffman
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-08-03T17:26:06.233Z
Comments.Text: @DarrelHoffman: The game didn't matter because they had both already qualified, so they [did it for the memes](https://www.youtube.com/watch?v=zVCst6vyV80).  See also [Bongcloud Attack](https://en.wikipedia.org/wiki/Bongcloud_Attack)
Comments.UserDisplayName: BlueRaja - Danny Pflughoeft
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2022-09-03T15:59:57.407Z
Comments.Text: @OverLordGoldDragon this is even more cursed... https://imgur.com/gallery/t9aw8YX
Comments.UserDisplayName: Florian Wendelborn
Tags: <threefold-repetition><claim-draw><bongcloud>
Title: Why did this legendary game of Carlsen vs Nakamura not trigger threefold-repetition after move 5?
ThreadText: # Why did this legendary game of Carlsen vs Nakamura not trigger threefold-repetition after move 5?
  
  (Asked by: username_0 on 2022-08-02)
  
  As far as I can tell, the position is the same after move 1, after move 3, and after move 5, so why does the game last until move 6 is done? Did it not get claimed as a draw by either player?
  
  ```
  [fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
  [Event "Magnus Carlsen Invitational"]
  [Site "chess24.com INT"]
  [Date "2021.03.15"]
  [EventDate "2021.03.13"]
  [Round "15.3"]
  [Result "1/2-1/2"]
  [White "Magnus Carlsen"]
  [Black "Hikaru Nakamura"]
  [ECO "C20"]
  [WhiteElo "2847"]
  [BlackElo "2736"]
  [PlyCount "12"]
  
  1. e4 e5 2. Ke2 Ke7 3. Ke1 Ke8 4. Ke2 Ke7 5. Ke1 Ke8 6. Ke2
  Ke7 1/2-1/2
  
  ```
  
  **Tags:** threefold-repetition, claim-draw, bongcloud
  
  > **Comments:**
  > **username_1**: Think I [broke it](https://user-images.githubusercontent.com/16495490/182562182-f0bc7566-64b7-4010-b8f5-806d6cc9dac8.mp4)  
  > **username_2**: also this game was played online (I watched it live) so there was no need for either player to claim a draw as the computer would've automatically  
  > **username_3**: ...Why did they do this?  If they were intentionally playing to draw as it seems they were, why not just move knights back and forth and be done a move earlier?  Unless there's some other reason to have done this?  
  > **username_4**: @username_3: The game didn't matter because they had both already qualified, so they [did it for the memes](https://www.youtube.com/watch?v=zVCst6vyV80).  See also [Bongcloud Attack](https://en.wikipedia.org/wiki/Bongcloud_Attack)  
  > **username_0**: @username_1 this is even more cursed... https://imgur.com/gallery/t9aw8YX  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2022-08-02. Score: 56 | Accepted answer
  
  While the position might seem like it has been reached 3 times at that point, that is actually only the second time they have reached that position because the first time they were in this position, before the kings had moved, they had the ability to castle. So the position has only occurred twice where they can't castle as of move 5, and it has only had the exact same position twice in a row. They then needed to play it one more time so that they have had the same position three times where they haven't had the ability to castle.
  
  > **Comments:**
  > **username_0**: Thanks, that makes a lot of sense. I didn’t know this was part of the threefold-repetition requirements  
  > **username_5**: Yes a similar argument applies after move 5.5, because Black still had castling rights after move 1.5  
  > **username_2**: yeah, who's turn it is to move is also important, if you reach the same position three times but in two of them its white to move and in one its black to move, then that wouldn't be threefold repetition either.  
  > **username_6**: Also, both players can choose to "not trigger" by playing on, only a fivefold repetition is an automatic draw.  
  > **username_2**: @username_6 is that a lichess feature? or do you mean otb? on chess.com it will automatically draw at 3  
  > **username_6**: @username_2: Indeed OTB FIDE rules (5x) and chess site rules (whatever they implement) may differ here.  
  > **username_7**: Your opponent can also accept an invalid claim as a draw, however this might be against the Sofia rules.  
  
  ---
  
  