Uzbekistan's Javokhir Sindarov surged ahead in the Candidates chess tournament, securing a sole lead after defeating pre-event favourite Fabiano Caruana of the USA in the fourth round.
Meanwhile, Grandmaster R Praggnanandhaa played out a draw with German Matthias Bluebaum, while Anish Giri bounced back to defeat Russian Andrey Esipenko.
In the women's event, Divya Deshmukh suffered a setback at the hands of Chinese Jiner Zhu, while R Vaishali played out a draw with Aleksandra Goryachkina of Russia.
Anna Muzychuk of Ukraine joined overnight leader Bibisara Assaubayev of Kazakhstan in pole position, sharing the lead on 2.5 points apiece.
