[Event "Interzonal-08"]
[Site "Palma de Mallorca"]
[Date "1970.12.12"]
[Round "23"]
[White "Ivkov, Borislav"]
[Black "Mecking, Henrique"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6 7. Bd3 Bb7 8. Nge2 c5 9. d5 e6 10. O-O exd5 11. exd5 Nbd7 12. b3 a6 13. a4 Re8 14. Qd2 Qe7 15. Bg5 Qf8 16. Rae1 Kh8 17. f4 h6 18. Bh4 1/2-1/2