[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1964.01.18"]
[Round "9"]
[White "De Rooi, Paul"]
[Black "Bobotsov, Milko Georgiev"]
[Result "0-1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. b3 c6 6. e4 d5 7. cxd5 cxd5 8. exd5 Nbd7 9. Bb2 Nb6 10. Nge2 Nfxd5 11. O-O Bf5 12. a4 a5 13. d4 Rc8 14. Qd2 Be6 15. Ne4 Nb4 16. Rfc1 Bxb3 17. Rxc8 Qxc8 18. Rc1 Qa8 19. Nc5 Bd5 20. Bh3 Nc4 21. Rxc4 Bxc4 22. Nd7 Rd8 23. Nb6 Qa6 24. Nxc4 Qxc4 25. Bf1 Qc2 26. Qxc2 Nxc2 27. Bc3 b6 0-1