[Event "It (open)"] [Site "Haarlem (Netherlands)"] [Round "4"] [White "Thomassen G"] [Black "Boonstra Jasper"] [Result "1-0"] [ECO "B09"] [Opening "Pirc: Austrian, 5...O-O"] 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 dxe5 7.fxe5 Nfd7 8.Bc4 e6 9.O-O Nc6 10.Bg5 Ne7 11.Qe1 Nb6 12.Bb3 h6 13.Qh4 hxg5 14.Nxg5 Bh6 15.Qxh6 Qxd4+ 16.Kh1 {#r} 1-0