Answers.Body: <p>It's a good question, and I would like to lay claim to the view that no such position exists.</p>
  <p>I have explored a bit, and found no hint of necessary zugzwang behaviour. Without exhaustive computer search, however, it's difficult to prove.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-06-21T02:55:42.120Z
Answers.LastActivityDate: 2024-06-21T02:55:42.120Z
Answers.UserDisplayName: Laska
Body: <p>Can you construct a position on a single file (double your points if it is the a or h file, triple if position is <a href="https://chess.stackexchange.com/questions/15977/are-there-any-symmetric-zugzwang-positions">symmetric</a>) which is a mutual full point zugzwang?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-06-21T12:45:37.260Z
Comments.Text: The full-point precision in the body of the question is important. For an half-point double-zugzwang, Ke5 Pe4 vs Ke7 would do.
Comments.UserDisplayName: Evargalo
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-06-26T05:09:33.050Z
Comments.Text: It's possible in some variants such as giveaway.
Comments.UserDisplayName: Lucenaposition
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-07-03T03:32:20.727Z
Comments.Text: It should be possible to check all positions with 4-7 men all on 1 file using tablebases.
Comments.UserDisplayName: Lucenaposition
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-07-03T06:47:17.157Z
Comments.Text: @Lucenaposition: It just came to me that *all* full point double zugzwangs with at least 6 men (not sure about 7) were tabulated in some study magazine, if my memory serves me well. The theme is well researched, see e.g. here for my 1st google hit: https://www.chess.com/blog/Rocky64/even-more-adventures-with-endgame-tablebases
Comments.UserDisplayName: Hauke Reddmann
Tags: <analysis><problems><zugzwang>
Title: One-liner double zugzwang
ThreadText: # One-liner double zugzwang
  
  (Asked by: username_0 on 2024-06-20)
  
  Can you construct a position on a single file (double your points if it is the a or h file, triple if position is [symmetric](https://chess.stackexchange.com/questions/15977/are-there-any-symmetric-zugzwang-positions)) which is a mutual full point zugzwang?
  
  **Tags:** analysis, problems, zugzwang
  
  > **Comments:**
  > **username_1**: The full-point precision in the body of the question is important. For an half-point double-zugzwang, Ke5 Pe4 vs Ke7 would do.  
  > **username_2**: It's possible in some variants such as giveaway.  
  > **username_2**: It should be possible to check all positions with 4-7 men all on 1 file using tablebases.  
  > **username_0**: @username_2: It just came to me that *all* full point double zugzwangs with at least 6 men (not sure about 7) were tabulated in some study magazine, if my memory serves me well. The theme is well researched, see e.g. here for my 1st google hit: https://www.chess.com/blog/Rocky64/even-more-adventures-with-endgame-tablebases  
  
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  ## 1 answers
  
  ### Answer by username_3 on 2024-06-21. Score: 3
  
  It's a good question, and I would like to lay claim to the view that no such position exists.
  
  I have explored a bit, and found no hint of necessary zugzwang behaviour. Without exhaustive computer search, however, it's difficult to prove.
  
  
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