Kalmykia, Russia:Top seed Grandmaster Koneru Humpy came back to reckoning after defeating Tatiana Kosintseva of Russia in both the games of the tiebreak of 3rd round of World Women's chess championship now underway here. With this victory Humpy moved to the quarterfinals of the championship and will now play against World Cup Champion Xu Yuhua of China. Battle of nerves Having the lost the second game under normal time control, Humpy had blown away her full point lead but with a double victory again under Rapid chess rules, the strongest ever Indian women player proved that she is made of sterner stuff. It was a contest of nerves as Humpy survived some anxious moments in the second game. It was an irregular queen pawn game yet again as white that gave Humpy, what looked like an easy victory in the end. In the middle game, Humpy had to sacrifice a pawn to get her own queen side pawn rolling. Kosintseva fell for the bait when she went for a dubious trade of pieces that left her pieces scattered. Humpy won after picking a piece in a tactical skirmish. (PTI).