Indian Grandmaster R Vaishali will face immense pressure in the penultimate round of the Candidates chess tournament after squandering her chance to extend her lead.
She will take on former women's world champion Zhongyi Tan of China, who is now level with Vaishali at the top of the points table.
Vaishali will need to regroup after the final rest day of the tournament, which will determine the challenger to reigning world champion Wenjun Ju of China.
She also faces a tricky challenge from Russia's Kateryna Lagno, who may be out of title contention but remains a formidable opponent.
Kazakhstan's Bibisara Assaubayeva and Ukraine's Anna Muzychuk are also in the hunt, trailing the leaders by half a point.
