Simen Agdestein
| Simen Agdestein | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Agdestein at the Norwegian Chess Championship in Bergen, July 2009 | |||||||||||||||||||||||||||||||||
| Country | Norway | ||||||||||||||||||||||||||||||||
| Born | 15 May 1967 Asker, Norway | ||||||||||||||||||||||||||||||||
| Title | Grandmaster (1985) | ||||||||||||||||||||||||||||||||
| FIDE rating | 2564 (June 2025) | ||||||||||||||||||||||||||||||||
| Peak rating | 2637 (July 2014) | ||||||||||||||||||||||||||||||||
| Peak ranking | No. 16 (July 1989) | ||||||||||||||||||||||||||||||||
| 
 | |||||||||||||||||||||||||||||||||
Simen Agdestein (born 15 May 1967) is a Norwegian chess grandmaster, chess coach, author, and former professional footballer as a striker for the Norway national football team.
Agdestein won nine Norwegian Chess Championships between 1982 and 2023. He is also the former coach of Magnus Carlsen, and brother of Carlsen's manager, Espen Agdestein. He has written and co-written several books on chess, including a biography of Carlsen.