Fabiano Caruana battled back in London ©Getty Images

The second match of this year's World Chess Championship between holder Magnus Carlsen of Norway and US challenger Fabiano Caruana ended in another draw but the tables turned in London.

Twenty-seven-year-old Carlsen came close to becoming the first world champion to win the opening game of a World Chess Championship as black in 37 years during yesterday's opener at The College in Holborn.

A blunder on move 40 made a draw the most likely result, however, with that coming to pass after a seven-hour marathon.

Caruana battled back today, never allowing the Norwegian a winning chance despite playing with the disadvantageous black pieces.

The American was always ahead on the clock as the draw was declared after 49 moves in roughly 3 hours 15min.

"This was not very good," Carlsen said, according to Tarjei Svensen

"I was surprised in the opening, I thought I had chances to a small advantage. 

"I miscalculated something.  

"Then I had to beg for a draw, but that went without problems."

With the match at 1-1, the first rest day will be tomorrow before play resumes on Monday (November 12).

Ju Wenjun marched on at the Women's World Chess Championship in Russia ©FIDE
Ju Wenjun marched on at the Women's World Chess Championship in Russia ©FIDE

At the Women's World Championships in Russian city Khanty-Mansiysk, two quarter-finalists were decided as the second matches of the best-of-three third round were played.

China's reigning champion Ju Wenjun was first to advance as she drew with compatriot Zhai Mo to secure a 1½-½ win.

Former world champion Mariya Muzychuk of Ukraine also went through as she completed a 1½-½ win over Iran's Mobina Alinasab.

Six other matches will have to be completed tomorrow to complete the last eight line-up.

The competition format sees each round consist of two classical games and, if needed, a rapid/blitz tiebreak on the third day.