Grand Master Ziaur Rahman shared the lead along with three other players in the fifth Amritolal Dey International Rating chess tournament after the fourth round at the Kalibari Road Auditorium in Barisal on Sunday.

Zia, Chanchal Kumar Gosh, Delwar Hossain and Abdul Malek secured full four points.

Indian Sumon Bose followed the leaders with 3.5 points.