[Event "18th olm qual. group 7"]
[Site "Lugano SUI"]
[Date "1968.10.21"]
[Round "4"]
[White "Ortega, Rogelio CUB"]
[Black "Jansa, Vlastimil CSR"]
[Result "1/2-1/2"]
[ECO "B04"]
[EventDate "1968.10.17"]
[PlyCount "79"]

1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 5.Bc4 c6 6.O-O Bg7 7.exd6 Qxd6 8.Re1 
O-O 9.Bg5 Bg4 10.c3 e6 11.Nbd2 Nd7 12.Bb3 Rfe8 13.h3 Bxf3 14.Nxf3 a5 15.a3
b5 16.Qd2 N7b6 17.a4 bxa4 18.Bxa4 Nxa4 19.Rxa4 Nb6 20.Raa1 c5 21.dxc5 Qxc5
22.Be3 Qc6 23.Bxb6 Qxb6 24.Qc2 Rab8 25.Re2 Red8 26.Qe4 Rd5 27.Qh4 Rb5 28.
Rd1 h6 29.Rdd2 Qc7 30.Qa4 Bf6 31.Kf1 Kg7 32.Kg1 R8b7 33.Kh1 Qb8 34.Qa2 Qf4
35.Kg1 h5 36.Re3 g5 37.g3 Qb8 38.Ree2 R7b6 39.Kg2 Rf5 40.Nd4 1/2-1/2

