[Event "Ch World (juniors) (under 20)"] [Site "masterchessopen.com - Antwerpen (Belgium)"] [Round "3"] [White "Purdy John S (AUS)"] [Black "Deiseach Donald"] [Result "1-0"] [WhiteElo "2143"] [ECO "A03"] [Opening "Bird: 1...d5 2.Nf3 g6 3.e3"] 1.f4 d5 2.Nf3 g6 3.e3 Nf6 4.b3 Bg7 5.Bb2 O-O 6.Be2 c5 7.O-O b6 8.d3 Nc6 9.Qe1 d4 10.Ne5 Nxe5 11.fxe5 Nd5 12.Bf3 Bxe5 13.exd4 Bxd4+ 14.Bxd4 cxd4 15.Qe5 e6 16.Qxd4 Rb8 17.Nd2 Qg5 18.Rf2 Nf4 19.Ne4 e5 20.Qd6 {#r} 1-0