[Event "Ch USA"] [Site "USA"] [Round "0"] [White "Boris Markovich Kogan"] [Black "Sergey Kudrin"] [Result "1-0"] [ECO "E02"] [Opening "Catalan: Open, 5.Qa4+"] 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nd2 a6 7.Nxc4 b5 8.Qc2 Nd5 9.Ne3 Bb4+ 10.Bd2 Nxe3 11.fxe3 Bxd2+ 12.Qxd2 Rb8 13.Rc1 O-O 14.Nh3 Nf6 15.Nf2 Bb7 16.Bxb7 Rxb7 17.e4 Rb6 18.e5 Nd5 19.O-O f5 20.Nd3 Rf7 21.Rc5 g5 22.Nb4 Nxb4 23.Qxb4 f4 24.Qc3 b4 25.Qd3 Rb5 26.Rxb5 axb5 27.Qe4 Rd7 28.gxf4 Rxd4 29.Qc6 Rxf4 30.Qxe6+ Kh8 31.Rxf4 gxf4 32.Qf5 Qd4+ 33.Kg2 Kg7 34.Qf6+ Kg8 35.Qe6+ Kf8 36.Qc8+ Ke7 37.Qxc7+ Ke6 38.Qxh7 Qxe5 39.Qg6+ Ke7 40.Qh7+ Ke6 41.Qg6+ Ke7 42.Qc2 Qd5+ 43.Kf2 Qd4+ 44.Kf1 Kf6 45.Qc6+ Kg7 46.Qxb5 Qe4 47.Qc5 Qb1+ 48.Kf2 Qxb2 49.Qg5+ Kh7 50.Qf5+ Kh8 51.Qf8+ Kh7 52.Qf7+ Kh8 53.Qxf4 Qxa2 54.Qf8+ Kh7 55.Qxb4 Qa7+ 56.Kf3 Qf7+ 57.Qf4 Qh5+ 58.Kf2 Qc5+ 59.Kf1 Qc2 60.Kf2 Qc5+ 61.e3 Qc1 62.Kg3 Qg1+ 63.Kh4 Qb1 64.e4 Qe1+ 65.Kg5 Qg1+ 66.Kh5 Qd1+ 67.Qg4 Qd6 68.Qf5+ Kg7 69.h4 Qh6+ 70.Kg4 Kh8 71.Qh5 {#r} 1-0