[Event "26th Chicago Open 2017"] [Site "Chicago USA"] [Date "2017.05.26"] [Round "3.9"] [White "Brown,Michael William"] [Black "Perez,Rob"] [Result "0-1"] [WhiteElo "2489"] [BlackElo "2365"] [EventType "swiss"] [ECO "D82"] [Opening "Gruenfeld: 4.Bf4 Bg7 5.e3"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Bf4 Bg7 5.e3 O-O 6.Rc1 Be6 7.Qb3 c5 8.Nf3 Nc6 9.dxc5 Ne4 10.Qxb7 Qa5 11.Qxc6 Nxc3 12.bxc3 Bxc3+ 13.Kd1 Rfd8 14.Bc7 dxc4+ 15.Nd4 Qb4 16.Bxd8 Rxd8 17.Qc7 Rd7 18.Qe5 Rd5 19.Qe4 Bxd4 20.exd4 c3 21.Bd3 Rxd4 22.Qa8+ Kg7 23.Ke2 Bc4 24.Rcd1 c2 25.Rd2 Qb2 26.Ke3 Qc3 27.Qf3 Bxd3 {#R} 0-1