[Event "16th StudWTCh qual. group 5"]
[Site "Dresden GDR"]
[Date "1969.08.01"]
[EventDate "1969.08.01"]
[Round "1"]
[Result "0-1"]
[White "Paul Mertens"]
[Black "Luben Spasov"]
[ECO "E92"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "98"]

1.c4 g6 2.d4 Nf6 3.Nf3 Bg7 4.Nc3 O-O 5.e4 d6 6.Be2 e5 7.d5 a5 8.Bg5 h6 9.
Bh4 Na6 10.b3 Bd7 11.O-O Qe8 12.Nd2 Nh7 13.a3 h5 14.f3 Bh6 15.Bf2 f5 16.
Rb1 Nc5 17.Qc2 Qe7 18.Bd3 h4 19.b4 axb4 20.axb4 Na4 21.Ra1 Nxc3 22.Qxc3
Bf4 23.Kh1 h3 24.g3 Qg5 25.Nb3 Rxa1 26.Rxa1 Be3 27.Qe1 Bxf2 28.Qxf2 fxe4
29.Bxe4 Nf6 30.Qe2 Nxe4 31.Qxe4 Bf5 32.Qe2 Qf6 33.Re1 Ra8 34.Na5 b6 35.Nc6
Ra3 36.Rd1 g5 37.g4 Bh7 38.Kg1 Rxf3 39.Rf1 Rxf1+ 40.Qxf1 Qxf1+ 41.Kxf1
Bd3+ 42.Kf2 Bxc4 43.Ke3 Kf7 44.Ke4 Kf6 45.Nd8 Bb3 46.b5 Bc2+ 47.Ke3 Ba4
48.Ne6 Bxb5 49.Nxc7 Bc4 0-1