The win puts Carlsen closer to the status of chess legends such as Garry Kasparov, who dominated the game for 15 years.
Although Karyakin foiled predictions by tying Carlsen in 12 regular rounds, the Norwegian champion beat him in the final phase of four quick-fire extra games.
The battle for the world chess crown ended up in the dramatic tiebreaker on Wednesday after a win apiece and nine draws.
So the young stars -- both aged just 26 -- headed into the chess equivalent of extra time in soccer.
The accelerated games left plenty of opportunity for harried mistakes, and while predictions were difficult, Carlsen -- a king of the blitz format and world number-one since 2010 -- had remained favorite.
The Norwegian, who turned 26 on Wednesday, has played several blitz tournaments this year, beating US grandmaster Hikaru Nakamura in one in October.
But he has occasionally shown flashes of losing his cool, as when he slammed the door of the press room after defeat in the eighth round, earning a fine of five percent of his prize money.
======================
Carlsen won the championship -- organized by the International Chess Federation, FIDE -- in 2013 and 2014, beating Indian Viswanathan Anand.
Karyakin, a child prodigy who became the youngest ever chess grandmaster at the age of 12, has known Carlsen for years and had little to lose, with no one even having expected him to reach the final.
"Sergei has impressed everyone with his tenacity these last few weeks so he is perfectly capable of pulling an upset," said Wesley So, who travelled to New York from Minnesota to watch the clash.
Much has been made of the clash as a reprise of the great Cold War chess battles of the 1970s, but Karyakin, who is from Crimea and supported Russia's 2014 annexation of the peninsula, has played down political overtones.
In a sign of the final's significance to Moscow, President Vladimir Putin's spokesman Dimitry Peskov was in New York to see the start of the head-to-head.
The competition initially offered prize money of 600,000 euros ($637,000) for the winner, and 400,000 euros for the losers, but that was changed to 550,000 and 450,000 euros respectively because the battle went into extra time.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
