Body: <p>In the <a href="https://www.youtube.com/watch?v=YqlXh1Au6nU&amp;ab_channel=ChickenChessClub" rel="nofollow noreferrer">latest podcast from the Chicken Chess Club</a>, <a href="https://en.wikipedia.org/wiki/Laurent_Fressinet" rel="nofollow noreferrer">Laurent Fressinet</a> admitted that in his latest tournament, the French rapid and blitz championships, he made an illegal move. He asked the other two podcasters when they last made an illegal move. <a href="https://en.wikipedia.org/wiki/Jan_Gustafsson" rel="nofollow noreferrer">Jan Gustafsson</a> said that his last illegal move was when he was 17 (so about 1996) and rated about 2400. <a href="https://en.wikipedia.org/wiki/Peter_Heine_Nielsen" rel="nofollow noreferrer">Peter Heine Nielsen</a> couldn't remember.</p>
  <p>So, how often do strong master level players (2400+) make illegal moves?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-07-10T00:18:14.613Z
Comments.Text: If you count moves made in an already dead position as technically illegal, François Labelle did some research awhile back: https://wismuth.com/chess/illegal-moves.html
Comments.UserDisplayName: Rewan Demontay
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-07-10T07:57:43.987Z
Comments.Text: It is very hard to answer this statistically, because illegal moves, by nature, are not recorded in databases. For the anecdote, a 2630 GM once made an illegal move against in rapid...
Comments.UserDisplayName: Evargalo
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-03-17T21:53:57.223Z
Comments.Text: Related:  [1](https://www.youtube.com/watch?v=MPzEFfZe1WQ), [2](https://www.youtube.com/watch?v=Zo8EAtSFf38), [3](https://www.youtube.com/watch?v=m5WVJu154F0)
Comments.UserDisplayName: SecretAgentMan
Tags: <statistics><grandmaster><illegal-move><international-master>
Title: How often do strong master level players (2400+) make illegal moves?
ThreadText: # How often do strong master level players (2400+) make illegal moves?
  
  (Asked by: username_0 on 2023-07-09)
  
  In the [latest podcast from the Chicken Chess Club](https://www.youtube.com/watch?v=YqlXh1Au6nU&ab_channel=ChickenChessClub), [Laurent Fressinet](https://en.wikipedia.org/wiki/Laurent_Fressinet) admitted that in his latest tournament, the French rapid and blitz championships, he made an illegal move. He asked the other two podcasters when they last made an illegal move. [Jan Gustafsson](https://en.wikipedia.org/wiki/Jan_Gustafsson) said that his last illegal move was when he was 17 (so about 1996) and rated about 2400. [Peter Heine Nielsen](https://en.wikipedia.org/wiki/Peter_Heine_Nielsen) couldn't remember.
  
  So, how often do strong master level players (2400+) make illegal moves?
  
  **Tags:** statistics, grandmaster, illegal-move, international-master
  
  > **Comments:**
  > **username_1**: If you count moves made in an already dead position as technically illegal, François Labelle did some research awhile back: https://wismuth.com/chess/illegal-moves.html  
  > **username_2**: It is very hard to answer this statistically, because illegal moves, by nature, are not recorded in databases. For the anecdote, a 2630 GM once made an illegal move against in rapid...  
  > **username_3**: Related:  [1](https://www.youtube.com/watch?v=MPzEFfZe1WQ), [2](https://www.youtube.com/watch?v=Zo8EAtSFf38), [3](https://www.youtube.com/watch?v=m5WVJu154F0)  
  
  ---
  
  ## 0 answers
  
  