[Event "Palma de Mallorca Interzonal"]
[Site "Palma de Mallorca"]
[Date "1970.??.??"]
[Round "18"]
[White "Ivkov, Borislav"]
[Black "Addison, William"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A29"]

1.c4 e5 2.Nc3 Nf6 3.g3 d5 4.cxd5 Nxd5 5.Bg2 Be6 6.Nf3 Nc6 7.O-O Nb6 8.d3 Be7
9.Be3 O-O 10.Qc1 f5 11.Rd1 Kh8 12.d4 e4 13.Ne5 Nb4 14.f3 exf3 15.exf3 c6
16.Bf2 Bg8 17.a3 N4d5 18.Qc2 Bd6 19.Re1 Qf6 20.Re2 Rae8 21.Rae1 Re7 22.Nb1 Rfe8
23.f4 h6 24.Nd2 g5 25.fxg5 hxg5 26.Ndc4 Nxc4 27.Nxc4 Rxe2 28.Rxe2 Rxe2 29.Qxe2 Bc7
30.Qe8 Qf7 31.Qc8 Nb6 32.Nxb6 Bxb6 33.Bf1 Qd5 34.Qxb7 Bxd4 35.Qb4 Bxf2+ 36.Kxf2 Qe5
37.Qc3 Qxc3 38.bxc3 Kg7 39.h4 Kh6 40.Be2 c5 41.hxg5+ Kxg5 42.Ke3  1/2-1/2

