[Event "It (open) (b)"] [Site "Dortmund (Germany)"] [Date "2011.07.24"] [Round "2"] [White "Porstmann Jan"] [Black "Dolgopolyj Vladimir (GER)"] [Result "0-1"] [WhiteElo "1591"] [BlackElo "2052"] [ECO "B03"] [Opening "Alekhine: 4.c4 Nb6 5.Nf3"] 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.c4 Nb6 5.Nf3 Bg4 6.Be2 e6 7.Nc3 Be7 8.O-O O-O 9.b3 Nc6 10.Bb2 f6 11.exd6 cxd6 12.Re1 e5 13.Qd3 Nb4 14.Qd2 Bf5 15.Rac1 Qd7 16.Nh4 Bg4 17.Ba3 a5 18.Nf3 Rae8 19.Red1 Bf5 20.dxe5 dxe5 21.Nb5 Qc6 22.Nh4 Be6 23.Bf3 e4 24.Nd4 {#R} 0-1