Vladimir Kramnik, a renowned Russian chess grandmaster, has retired from professional competition at 43.
What happened?
He made the announcement on the website of the Tata Steel Chess tournament, which ended in the Netherlands on Sunday.
Vladimir Kramnik defeated defending champion Garry Kasparov at the World Championship in 2000.
Why it matters for Vladimir Kramnik
This retirement marks the end of an era for Vladimir Kramnik, who became the undisputed world champion in 2006.
He was currently ranked seventh by the World Chess Federation.
Vladimir Kramnik decided to finish his professional chess career a couple of months ago.
What comes next?
He will now focus on chess education projects, as stated on the Tata Steel Chess tournament website.
Vladimir Kramnik's last tournament was the Tata Steel Chess tournament that ended on Sunday.
He announced his retirement publicly after playing his last tournament.
Vladimir Kramnik was regarded as one of the strongest players in the world.
His retirement was reported by Tom Balmforth and edited by Robin Pomeroy.
Vladimir Kramnik's decision to retire was made a couple of months ago, but only announced publicly on Tuesday.
He was 43 years old when he made the announcement.