[Event "Rubinstein mem"]
[Site "Polanica Zdroj"]
[Date "1977.??.??"]
[Round "1"]
[White "Diesen, Mark C"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[WhiteElo "2360"]
[BlackElo "2510"]
[ECO "C91"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O
9.d4 Bg4 10.d5 Na5 11.Bc2 c5 12.Nbd2  1/2-1/2

