[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1964.01.17"]
[Round "8"]
[White "Bobotsov, Milko Georgiev"]
[Black "Portisch, Lajos"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 c6 6. Bg5 h6 7. Bh4 Bf5 8. e3 Be7 9. Bd3 Ne4 10. Bxe7 Qxe7 11. Qc2 Nd7 12. O-O O-O 13. Nd2 Rfe8 14. Rae1 Ndf6 15. Nb3 Nxc3 16. bxc3 Bxd3 17. Qxd3 Qe4 18. Qe2 b6 19. c4 c5 20. dxc5 dxc4 21. Nd2 Qc6 22. Qxc4 Rac8 23. Rc1 Qxc5 24. Qxc5 Rxc5 25. Rxc5 bxc5 26. Rc1 Nd7 27. Kf1 Kf8 28. Ke2 Re6 29. Rc2 Ke7 30. Nc4 Ra6 31. Rb2 Kd8 32. Kd3 Kc7 33. e4 Nb6 34. Rb5 Nd7 35. Rb2 Ra4 36. e5 Kc6 37. Re2 Kd5 38. Ne3+ Kxe5 39. Nd1+ Kf6 40. Re4 Rxa2 41. Rf4+ 0-1