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Koontz, Carl A - Jacobi, Gunther J (1959) - Oregon Invitational (7), Portland, 2016
A29

1.c4 e5 2.Nc3 Nf6 3.d3 Bb4 4.Nf3 Nc6 5.g3 O-O 6.Bg2 d5 7.cxd5 Nxd5 8.Bd2 Nb6 9.O-O f6 10.a3 Be7 11.b4 Be6 12.Be3 Nd4 13.Nd2 c6 14.Nde4 f5 15.Nd2 Qd7 16.Bxd4 Qxd4 17.Rc1 Rad8 18.Qc2 Kh8 19.Nf3 Qd6 20.Rfd1 Bf6 21.Na4 Nxa4 22.Qxa4 a6 23.Qc2 g5 24.h3 Qe7 25.Qc5 Qg7 26.e3 Rd5 27.Qc2 Rfd8 28.Ne1 R5d7 29.a4 Qf7 30.Rb1 Bd5 31.Nf3 e4 32.Nd4 Bxd4 33.exd4 exd3 34.Rxd3 Bxg2 35.Kxg2 Qd5+ 36.Kh2 Qe4 37.Qc3 Kg8 38.Re1 Qd5 39.Qd2 h6 40.Qe3 Qf7 41.h4 Qf6 42.hxg5 hxg5 43.Kg2 Rh7 44.Rdd1 f4 45.Qe5 Rf8 46.f3 fxg3 47.Qe6+ Rhf7 48.Qxf6 Rxf6 49.Re5 Rf5 50.Rde1 Kg7 51.Re7+ R8f7 52.Kxg3 Rxf3+ 53.Kg4 R3f4+ 54.Kxg5 Rxd4 55.R1e4 Rd5+ 56.Kg4 Kg6 57.R4e6+ Kg7 58.Re4 Rd6 59.Kg5 Rg6+ 60.Kh5 Rg1 61.R4e6 Rh1+ 62.Kg5 Rg1+ 63.Kh5 Rgf1 64.Kg5 R1f5+ 65.Kg4 Rf4+ 66.Kg5 Rxb4 67.Re8 Rd7 68.Rg6+ Kf7 69.Reg8 Rd5+ 0-1

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