[Event "Hoogovens"]
[Site "Beverwijk"]
[Date "1961.??.??"]
[Round "?"]
[White "Larsen, Bent"]
[Black "Ivkov, Borislav"]
[Result "1-0"]

1. c4 Nf6 2. Nc3 c5 3. g3 g6 4. Bg2 Bg7 5. a3 Nc6 6. d3 O-O 7. Rb1 a5 8. e4 d6 9. Nge2 Ne8 10. O-O Nc7 11. f4 Nd4 12. Nxd4 cxd4 13. Na4 Na6 14. b4 axb4 15. axb4 Bd7 16. b5 Nc5 17. Nxc5 dxc5 18. e5 Qb6 19. Qf3 Ra7 20. g4 e6 21. Bd2 Rfa8 22. Be1 Bc8 23. Bh4 Ra2 24. Be7 Rd2 25. Ra1 Raa2 26. Rxa2 Rxa2 27. h4 Bf8 28. Bxf8 Kxf8 29. h5 Qa5 30. Rf2 Qe1+ 31. Bf1 Rxf2 32. Qxf2 Qxf2+ 33. Kxf2 b6 34. Bg2 Kg7 35. Kg3 f6 36. exf6+ Kxf6 37. Kh4 Bd7 38. Bc6 Bc8 39. Be8 Bb7 40. Bc6 Bc8 1-0