[Event "It (juniors) (under 18)"] [Site "masterchessopen.com Schilde (Belgium)"] [Date "1973.07.15"] [Round "4"] [White "Diesen Mark C (USA)"] [Black "Grillitsch Karl (AUT)"] [Result "1-0"] [WhiteElo "2409"] [BlackElo "2257"] [ECO "B70"] [Opening "Sicilian: Dragon"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.Bc4 Bd7 10.O-O-O Qb8 11.Bb3 Rc8 12.h4 Nxd4 13.Bxd4 a5 14.a3 b5 15.Bxf6 Bxf6 16.Nd5 Ra6 17.h5 g5 18.e5 Bxe5 19.Qxg5+ {#r} 1-0