Answers.Body: <p>I have not identified the record with certainty, but here are some young winners of World Champions in classical chess:</p>
  <ul>
  <li><p>N.Abdusattorov, 18y 4m 1d, <a href="https://www.chessgames.com/perl/chessgame?gid=2457584" rel="nofollow noreferrer">vs</a> Carlsen in Wijk aan Zee 2023</p>
  </li>
  <li><p>Rameshbabu Praggnanandhaa, 18y 5m 6d, <a href="https://www.chessgames.com/perl/chessgame?gid=2648343" rel="nofollow noreferrer">vs</a> Ding in Wijk aan Zee 2024</p>
  </li>
  <li><p>V.Kramnik, 18y 8m 11d, <a href="https://www.chessgames.com/perl/chessgame?gid=1070706" rel="nofollow noreferrer">vs</a> Kasparov in Linares 1994.</p>
  </li>
  <li><p>A.Esipenko, 18y 9m 17d, <a href="https://www.chessgames.com/perl/chessgame?gid=2021289" rel="nofollow noreferrer">vs</a> Carlsen in Wijk aan Zee 2021</p>
  </li>
  <li><p>T.Radjabov, 18y 11m 10d, <a href="https://www.chessgames.com/perl/chessgame?gid=1397157" rel="nofollow noreferrer">vs</a> Topalov in Linares 2006</p>
  </li>
  </ul>
  <p><em>Edit</em>: V.Keymer, <a href="https://www.chessgames.com/perl/chessgame?gid=2555769" rel="nofollow noreferrer">winning</a> against World #1 at 18y, 9m, 25d, would be in a very good spot on this list, had Magnus Carlsen not renounced his World Champion title a few months earlier...</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-20T13:17:49.350Z
Answers.LastActivityDate: 2024-06-05T11:40:37.430Z
Answers.LastEditDate: 2024-06-05T11:40:37.430Z
Answers.UserDisplayName: Evargalo
Body: <p>In September 2022 19 year old <a href="https://en.wikipedia.org/wiki/Carlsen%E2%80%93Niemann_controversy" rel="nofollow noreferrer">Hans Niemann beat Magnus Carlsen in the Sinquefield Cup</a>.</p>
  <p>On the 19th January 2023 18 year old <a href="https://twitter.com/ChesscomLive/status/1616143570276319232" rel="nofollow noreferrer">Nodirbek Abdusattorov beat Magnus Carlsen in the Tata Steel tournament</a>.</p>
  <p>Is Abdusattorov the youngest player to beat a reigning world champion in a classical (i.e. not rapid or blitz) over-the-board game?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-20T08:01:42.987Z
Comments.Text: Youngest player to beat a World n°1 is probably 15yo Teimour Radjabov in Linares, but Garri Kasparov wasn't World Champion anymore at that time.
Comments.UserDisplayName: Evargalo
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-20T19:20:31.767Z
Comments.Text: I am guessing that in the spirit of the question, simultaneous exhibitions are also excluded, right (or, rather, it is limited to tournament setting classic format only)? I've looked up pre-modern (~<1990) games and it'd seem that there were not just a lot of opportunities to young players to play a reigning champion, Fischer was notably fuming when he was denied to play Botvinnik. Also, not sure if relevant, but I would assume disputed situations like post-Alekhine's death interregnum and 1993-2006 split championships are treated permissively.
Comments.UserDisplayName: Lodinn
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-20T20:33:19.217Z
Comments.Text: @Lodinn Yes, simuls don't count. As a 16 year old I drew with Kortchnoi in a simul. When a strong GM is playing 25 or more players at the same time then 1 or 2 will get lucky. It doesn't mean much, although a draw meant that I got my entry fee back which did mean a lot to a poor working class lad. Between Alekhine and Botvinnik there was no world champion. During the PCA time there were usually two world champions.
Comments.UserDisplayName: Brian Towers
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-20T20:39:48.360Z
Comments.Text: Still pretty impressive. Completely distracted IMs (at least, some of them) would usually handily beat me (~2000-2100) in my youth without even trying, so I reckon ratings matter quite a lot in chess. And for winning I would have to get *really* lucky, this is yet another ballpark entirely.
Comments.UserDisplayName: Lodinn
Tags: <records><world-championship>
Title: Youngest Player to beat a reigning World Champion?
ThreadText: # Youngest Player to beat a reigning World Champion?
  
  (Asked by: username_0 on 2023-01-20)
  
  In September 2022 19 year old [Hans Niemann beat Magnus Carlsen in the Sinquefield Cup](https://en.wikipedia.org/wiki/Carlsen%E2%80%93Niemann_controversy).
  
  On the 19th January 2023 18 year old [Nodirbek Abdusattorov beat Magnus Carlsen in the Tata Steel tournament](https://twitter.com/ChesscomLive/status/1616143570276319232).
  
  Is Abdusattorov the youngest player to beat a reigning world champion in a classical (i.e. not rapid or blitz) over-the-board game?
  
  **Tags:** records, world-championship
  
  > **Comments:**
  > **username_1**: Youngest player to beat a World n°1 is probably 15yo Teimour Radjabov in Linares, but Garri Kasparov wasn't World Champion anymore at that time.  
  > **username_2**: I am guessing that in the spirit of the question, simultaneous exhibitions are also excluded, right (or, rather, it is limited to tournament setting classic format only)? I've looked up pre-modern (~<1990) games and it'd seem that there were not just a lot of opportunities to young players to play a reigning champion, Fischer was notably fuming when he was denied to play Botvinnik. Also, not sure if relevant, but I would assume disputed situations like post-Alekhine's death interregnum and 1993-2006 split championships are treated permissively.  
  > **username_0**: @username_2 Yes, simuls don't count. As a 16 year old I drew with Kortchnoi in a simul. When a strong GM is playing 25 or more players at the same time then 1 or 2 will get lucky. It doesn't mean much, although a draw meant that I got my entry fee back which did mean a lot to a poor working class lad. Between Alekhine and Botvinnik there was no world champion. During the PCA time there were usually two world champions.  
  > **username_2**: Still pretty impressive. Completely distracted IMs (at least, some of them) would usually handily beat me (~2000-2100) in my youth without even trying, so I reckon ratings matter quite a lot in chess. And for winning I would have to get *really* lucky, this is yet another ballpark entirely.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2023-01-20. Score: 19
  
  I have not identified the record with certainty, but here are some young winners of World Champions in classical chess:
  
  * N.Abdusattorov, 18y 4m 1d, [vs](https://www.chessgames.com/perl/chessgame?gid=2457584) Carlsen in Wijk aan Zee 2023
  * Rameshbabu Praggnanandhaa, 18y 5m 6d, [vs](https://www.chessgames.com/perl/chessgame?gid=2648343) Ding in Wijk aan Zee 2024
  * V.Kramnik, 18y 8m 11d, [vs](https://www.chessgames.com/perl/chessgame?gid=1070706) Kasparov in Linares 1994.
  * A.Esipenko, 18y 9m 17d, [vs](https://www.chessgames.com/perl/chessgame?gid=2021289) Carlsen in Wijk aan Zee 2021
  * T.Radjabov, 18y 11m 10d, [vs](https://www.chessgames.com/perl/chessgame?gid=1397157) Topalov in Linares 2006
  
  *Edit*: V.Keymer, [winning](https://www.chessgames.com/perl/chessgame?gid=2555769) against World #1 at 18y, 9m, 25d, would be in a very good spot on this list, had Magnus Carlsen not renounced his World Champion title a few months earlier...
  
  
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