The Guntur lass, the lone Indian player at the prestigious tournament, started with black pieces and had to be at her defensive best from the early stages against the highest rated player in the tournament at the Hipp theatre last night.
"My opponent attacked from the beginning and I countered with a defensive structure to contain the pressure," Harika said after the match.
However, during the later stage of the game, Harika capitalised on an error made by her higher rated opponent which helped her regain the lost ground.
At the end of first day's action, Harika moved up a spot to the fifth position on the leader board with half a point.
She will take on the local Grandmaster Nils Grandelius in her second round later tonight.
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