[Event "Chess Olympiad Final-A"]
[Site "Skopje YUG"]
[Date "1972.09.30"]
[EventDate "?"]
[Round "4"]
[Result "1/2-1/2"]
[White "Tigran Vartanovich Petrosian"]
[Black "Milko Bobotsov"]
[ECO "D57"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "36"]

1.c4 Nf6 2.Nc3 e6 3.Nf3 d5 4.d4 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3
Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3 exd5 11.Qb3 c6 12.Bd3 Nd7
13.O-O Nf6 14.Rfe1 Be6 15.a4 c5 16.Qb5 Rfc8 17.Nd2 Rc7 18.a5
Rac8 1/2-1/2