[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1972.01.14"]
[Round "4"]
[White "Ivkov, Borislav"]
[Black "Adorjan, Andras"]
[Result "1/2-1/2"]
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Nxc6 bxc6 8. e5 Nd5 9. Nxd5 cxd5 10. Qxd5 Rb8 11. Bc4 O-O 12. O-O Qc7 13. f4 d6 14. exd6 exd6 15. Bb3 Be6 16. Qd2 Bxb2 17. Rad1 Rfe8 1/2-1/2