Answers.Body: <p>I found the answer. It is the Halfmove clock; the number of halfmoves since the last capture or pawn advance, used for the fifty-move rule.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-11-24T14:30:00.923Z
Answers.LastActivityDate: 2023-11-24T14:30:00.923Z
Answers.UserDisplayName: Gecko
Body: <p>I am using the Automatic Analysis function of Arena Chess. A great way to analyze many positions without human interaction. Arena produces an log-file with the result of an analysis. In the first line of a new position being analyzed there are three numbers, the middle one is a puzzle for me. Here an example output:</p>
  <pre><code> 1 - 0 1                
      Avoid move: 
      Best move (SF16): Ng1-f3
      Not found in: 00:00
       1/1    00:00.001            247    247k    +0.02   1.Nf3
  </code></pre>
  <p>In the first row, the leftmost 1 refers to the position count, the last number 1 is the move number, what is the 0 in the middle? The number in the middle is not always 0, other values are often seen too.</p>
  
Tags: <arena>
Title: Arena Automatic Analysis Output
ThreadText: # Arena Automatic Analysis Output
  
  (Asked by: username_0 on 2023-11-21)
  
  I am using the Automatic Analysis function of Arena Chess. A great way to analyze many positions without human interaction. Arena produces an log-file with the result of an analysis. In the first line of a new position being analyzed there are three numbers, the middle one is a puzzle for me. Here an example output:
  
  ```
   1 - 0 1                
      Avoid move: 
      Best move (SF16): Ng1-f3
      Not found in: 00:00
       1/1    00:00.001            247    247k    +0.02   1.Nf3
  
  ```
  
  In the first row, the leftmost 1 refers to the position count, the last number 1 is the move number, what is the 0 in the middle? The number in the middle is not always 0, other values are often seen too.
  
  **Tags:** arena
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2023-11-24. Score: 0
  
  I found the answer. It is the Halfmove clock; the number of halfmoves since the last capture or pawn advance, used for the fifty-move rule.
  
  
  ---
  
  