[Event "26th Chicago Open 2017"] [Site "Chicago USA"] [Date "2017.05.25"] [Round "1.5"] [White "Zhang,Yuanchen"] [Black "Sevian,Samuel"] [Result "0-1"] [WhiteElo "2268"] [BlackElo "2585"] [EventType "swiss"] [ECO "E47"] [Opening "Nimzo-Indian: 4.e3 O-O 5.Bd3"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 Nbd7 9.a3 Bxc3 10.bxc3 b6 11.Qe2 Bb7 12.Bb2 Rc8 13.Bd3 Be4 14.Ba6 Rc7 15.Ne5 Nxe5 16.dxe5 Nd7 17.f3 Bb7 18.Bxb7 Rxb7 19.c4 Qb8 20.f4 b5 21.e4 bxc4 22.Bc3 Rb3 23.Qxc4 Qb5 24.Qxb5 Rxb5 25.Rab1 Rfb8 26.Rxb5 Rxb5 27.Rd1 Rb7 28.Kf2 Kf8 29.Rd6 Ke7 30.Ra6 Nb6 31.a4 Kd7 32.Ke2 Kc6 33.Ba5 c4 34.Bxb6 axb6 35.Ra8 Kc5 36.Kd2 Kd4 37.g3 f6 38.Rd8+ Kxe4 39.exf6 gxf6 40.Kc3 b5 41.axb5 Rxb5 42.Rd4+ Kf3 43.Rxc4 Rh5 44.Rc6 Rxh2 45.Rxe6 Rh6 46.Kd3 Kxg3 47.Ke3 Kg4 48.Ra6 Rh3+ 49.Kf2 f5 50.Ra8 Rb3 51.Ra2 h5 52.Kg2 h4 53.Kh2 Rh3+ 54.Kg2 Rc3 55.Kf2 Rf3+ 56.Kg2 h3+ 57.Kg1 Kg3 58.Rg2+ Kxf4 59.Ra2 Rg3+ 60.Kh1 Re3 61.Ra8 Re2 62.Rh8 Kg3 63.Rg8+ Kf3 64.Rh8 f4 65.Rxh3+ Kf2 66.Ra3 f3 67.Kh2 Kf1+ 68.Kg3 f2 69.Ra1+ Re1 70.Ra2 Re3+ 71.Kh2 Re7 72.Ra1+ Ke2 73.Ra2+ Kf3 74.Ra3+ Re3 75.Ra4 f1=R {#R} 0-1