Grandmaster D Harika missed out on some chances to settle for a draw with Georgia's Sopiko Guramishvili, while Padmini Rout survived a scare before enforcing a draw with China's Tan Zhongyi in the first game of the third round of World Women's Chess Championship in Tehran.
Indian Grandmaster Dronavalli Harika staged a great comeback in the FIDE World Women's Chess Championship in Tehran, winning the second game against Tan Zhongyi of China to take the semi-final into a tie-breaker.
Playing white, Ganges Grandmasters defeated Balan Alaskan Knights 11-6 in a battle between the two leaders on the scoreboard.
After six draws in a row, Praggnanandhaa was relieved after the victory, a result of Gupta's blunder under time pressure.
Grandmaster Harika Dronavalli came out strongly yet again in the rapid tie-breaker as she outclassed Nana Dzagnidze of Georgia to enter the semi-finals of the FIDE World Women's Chess Championship for the third time in a row.
Vidit Gujrathi crashed through the defences of Hans Moke Niemann of the United States to join the leaders' pack on 4.5 points.
The Indian needs just a draw in the second game against Nana Dzagnidze of Georgia to qualify for the semis.
India's top player and Asian Games gold medallist Koneru Humpy, who had come back into medal contention after a modest performance on day two, had to settle for the sixth place though she logged eight points.
