The youngest-ever challenger to the world crown, Dommaraju Gukesh let go of a very promising position and had to settle for a fourth consecutive draw against defending champion Ding Liren of China in a marathon seventh game of the World Chess Championship here on Tuesday.

The stalemate, which came after five hours and 22 minutes of nerve-wracking play, left both players on an identical tally of 3.5 points each, still shy of four more points in order to win the championship.

The two players signed peace after 72 moves.

It turned out to be a tough day in office again for Ding, who was staring at a losing position for a long time, till Gukesh blundered. The Indian, playing white, got a huge advantage but miscalculated to let the Chinese off the hook in what was the longest game of the match thus far.

It was a miraculous save by Ding after getting into what the chess pundits termed as a lost rook and minor piece endgame.

Earlier in the day, Gukesh yet again tightened the noose in the opening.

Moving his knight forward on the first move, the Indian faced the Neo Grunfeld defense from Ding, and as early as on the seventh turn, Gukesh came up with a surprise idea.

Ding, who seemed to have solved his opening problems in the last couple of games, was at the receiving end on Tuesday, and even though he chose normal continuation, white’s position remained preferable.

Gukesh exerted pressure through the centre and got a dangerous-looking passed pawn in the early stages of the middle game, with the advantage of the bishop pair only adding to Liren’s woes.

The middle game saw inaccuracies from both sides, and it seemed that Ding was close to obtaining equality. However, the process had yet again eaten up most of Liren’s available time as the players are required to make the first 40 moves in two hours without any increment.

Gukesh went for the trade of queens after fracturing black’s pawn structure on the king side as the Indian got an indisputable advantage.

As has happened so many times in the past, the 40th move proved to be jinxed yet again as Ding lost a pawn. The Chinese either underestimated Gukesh’s chances or it was an oversight. Despite the advantage, Gukesh still had to go through the technicalities, which has not been his forte here.

Gukesh’s 45th move was not the best and Ding slowly clawed back into the game.

The tenacity of the Chinese came to the fore in the second time control also after he was left with just four minutes with a 30-second increment after each move is made.

Gukesh, who would have fancied his chances after the first time control, had to split the point after all the pawns were traded and he was left with a lone bishop.