Magnus Carlsen retains the title of World Chess Champion after defeating Fabiano Caruana

The Norwegian chess player Magnus Karlsen, the world's number one, retained his title of world champion of the game after defeating fellow American Fabiano Caruana in a separate match.

Carlsson beat Caruana in three games in four more games, putting an end to the hopes of the United States to win the championship for the first time since Bobby Fisher's 1972 victory.

The players have played 12 regular games over the last three weeks and ended in a draw.

"It was a tremendous win for me," Carlsen told the BBC.

"Fabiano has played very well, he's a very strong player, so winning is something special for me."

He explained that the tension was at its peak during the last three weeks and that he never felt that he would win or that he would lose, and that he was standing at the middle to place them in the center.

Caruana, however, told Norwegian TV NRK that he had experienced a "bad day" and that he could not even start fighting in the last match.

Carlsen, who was crowned three times earlier, is expected to win again, winning two more games and needing only a tie in the third game to ensure victory.

Caruana however retired in the third match after being assured that his Norwegian rival was about to win.

The players had to play four more short games after their first draw and the one who wins the most number of them would win the title.

Carlsson 's victory came after he appeared to have played in the last 12 games to impose crucial penalties, prompting criticism from former world champion Gary Kasparov, who said that he "s been out of contention. he had made a "shock show" and seemed to "lose his temper" and that he did not want to win anymore.

Vladimir Karamnik, a Russian chess professor, said about Karlsson at the time "he may be tired of tension and fighting, and perhaps even failures to some degree".

"I know what's best for me," Carlsen told the BBC.

"It is a purely sporting decision and, apart from the result of today, I think it was the right choice."

Carlsen was one of the few players to record a record for the 19-year-old international professor.