In sole lead with a comfortable advantage of 2.5 points, Indian Grandmaster R Vaishali will take on Tingjie Lei of China in the fifth round of the Norway chess tournament here.

Having amassed 8.5 points from the first four rounds, Vaishali is ahead of women’s world champion Wenjun Ju of China and Anna Muzychuk of Ukraine in the USD 1,61,000 prize money tournament.