[Event "Hoogovens"]
[Site "Wijk aan Zee"]
[Date "1970.01.20"]
[Round "7"]
[White "Ivkov, Borislav"]
[Black "Ree, Hans"]
[Result "1-0"]

1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. e4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. Be3 Bg7 9. f3 O-O 10. Qd2 Qa5 11. Rc1 a6 12. Be2 Bd7 13. O-O Rfd8 14. a3 Rac8 15. b4 Qc7 16. Bd3 Be6 17. Nd5 Bxd5 18. cxd5 Qd7 19. b5 axb5 20. Rb1 e6 21. Bxb5 Qe7 22. Bb6 Rf8 23. dxe6 Qxe6 24. Bd4 Nh5 25. Bxg7 Nxg7 26. Rfd1 Rfd8 27. Qd5 Qxd5 28. Rxd5 Kf8 29. Bf1 Rb8 30. Rdb5 Rd7 31. Rb6 Ne6 32. Bb5 Rdd8 33. Bc6 Ra8 34. Rxb7 Nc5 35. Rc7 Rxa3 36. Bd5 Rd7 37. Rbb7 Nd3 38. h3 Rxc7 39. Rxc7 Ra1+ 40. Kh2 1-0