India secured a crucial win in the open section, while they managed a draw in the women's section in round 10 of the ongoing 46th Chess Olympiad at Samarkand on Saturday.

GM M Pranesh inflicted a second straight loss on world champion D Gukesh while GM Nihal Sarin defeated compatriot Arjun Erigaisi in the penultimate round of the Chennai Grand Masters on Tuesday.

Vaishali, a winner in the previous edition held in Isle of Man in United Kingdom, outclassed her Chinese counterpart in the seventh round and now sits half a point behind Russian Kateryna Lagno.