After an out-of-sort display in the previous round when he lost to Ni Hua of China, Adhiban came roaring back to form and jumped to joint second spot with just one round left in the event that is a part of the next world championship cycle.
Yu Yangyi of China emerged as the sole leader after outwitting compatriot and top seed Bu Xiangzhi in a keenly contested game. Yangyi, who is the world junior champion currently, took his tally to 6.5 points out of a possible 8.
Former Asian champion Parimarjan Negi and S P Sethuraman are the other Indians in with a chance, but for that they will have to win the last round and hope for some other favourable results on other boards.
In the penultimate round, Negi played a fine game to beat Ehsan Ghaem Maghami of Iran, while Sethuraman accounted for Batchuluun Tsegmed of Mongolia.
Adhiban had to win with black -- a daunting task in Grandmaster level chess. Going for the King's Indian defense, Adhiban made sure he landed in a complicated position as Jumabayev went for the Bayonet attack.
Adhiban showed better preparation and understanding of middle game. He capitalised on a dubious pawn sacrifice by the Kazakh. Adhiban decided to eventually return the pawn but by then he had control thanks to his better placed pieces. Jumabayev succumbed under pressure.
