Norway’s Magnus Carlsen and the United States' Fabiano Caruana recorded a 10th consecutive draw in the men’s World Chess Championship final today, with the score now standing at 5-5.
The pair played to a 54-move tie in five hours and 19 minutes at The College in Holborn in London.
Following a rest day tomorrow, the match is due to resume on Saturday (November 24).
It offers a prize fund of €1 million (£885,000/$1.1 million), to be split 60-40 between winner and runner-up.
If the match is tied after 12 games, a succession of tie-break methods will be employed.
The first will be four rapid games - 25 minutes for each player - after which the player with the best score will be the winner.
If the match is still tied, the players will take part in up to five mini-matches of best-of-two blitz games - taking five minutes each.
The player with the best score in any two-game blitz match will be the winner.
If a winner is still to be found, the match will go to a single, sudden-death "Armageddon" game, with white being given five minutes and black four minutes.
In the case of a draw, the black will be declared the winner, with players drawing lots to have the right of choosing which colour they want.
The Women’s World Chess Championship final also continued today as China's Ju Wenjun beat home favourite Kateryna Lagno to take the match to a tie-break at the Ugra Chess Academy in Russian town Khanty-Mansiysk.
The score is now 2-2 following four games with classical time control.
The tie-break will be played tomorrow with Ju having the white pieces.
It will start with two games with rapid time control; 25 minutes and 10 seconds per move.
If the match is still tied, it will continue with two slow blitz games; 10 minutes and 10 seconds per move.
After that, if the winner is still not determined, two 5+10 blitz games will follow.
Finally, if those matches are still all square, the contest will proceed to an "Armageddon" game.