There are 4 GMs, one WGM, 3 IMs, 2 WIMs, 8 FMs, one WFM, one WCM and many others playing in this event. After 4 rounds four players lead with perfect score.
More info on the event – http://chess-results.com/tnr42714.aspx?art=2&rd=1&lan=1&m=-1&wi=1000 or via the official website – http://www.maleliit.ee/