At the end of three rounds, 11 players were tied at 3.0/3.
It was a Trompovsky Opening from Rahman who had the white pieces but Tran Minh played pretty accurately and was having a better position. Early in the middlegame, Black had stifled the position on the kingside where Rahman had swung his rook, the Delhi Chess Association said in a statement.
But Tran Minh made a very strange move when he castled kingside where Rahman was able to break open the position and swiftly drum up an attack on black's king.
All other co-leaders could only draw their games and hence, the Bangladeshi grandmaster leads alone with 4.0/4.
In the B-Category with 783 players being held simultaneously, 8 rounds of play have been completed and with two rounds to go.
Shubham of Haryana rated 1915, and Subhra Saha, of West Bengal, rated 1727, lead together with 7.5/8.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)