K. Humpy lost to China’s Hou Yifan after 78 moves in the first game of their semifinal clash in the women’s World chess championship at Hatay, Turkey, on Thursday.

In the Ruy Lopez game, that witnessed a series of exchanges, the players were left with a bishop and seven pawns each by the 28th move.

Thereafter, Hou Yifan, playing white, pushed hard for a win by relying on her better-placed king and an active bishop. She gained a pawn and frustrated Humpy further.

Later, Hou Yifan sacrficed two pawns to advance two remaining pawns to the seventh rank. At this stage, Humpy resigned.