Kuijpers, Frans VS Ivkov, Borislav 1968.??.??

[Event "IBM"]
[Site "Amsterdam"]
[Date "1968.??.??"]
[Round "3"]
[White "Kuijpers, Frans"]
[Black "Ivkov, Borislav"]
[Result "0-1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. a4 Bd7 16. axb5 axb5 17. b4 cxb4 18. cxb4 Nc4 19. Rxa8 Rxa8 20. Bb3 Ra1 21. Qd3 Be8 22. Qc3 Ra7 23. Bg5 Nd7 24. Rc1 Ra3 25. Qc2 Ndb6 26. dxe5 dxe5 27. Nd2 Bxb4 28. Nxc4 bxc4 29. Ba2 Rc3 30. Qb1 Rxc1+ 31. Bxc1 Bc5 32. Bd2 Qd6 33. Nf1 Ba4 34. Bc3 Bd4 35. Bb4 Bc5 36. Bc3 Bd4 37. Bb4 Qc6 38. Qc1 Bc5 39. Ba5 Bb3 40. Bxb3 cxb3 41. Qb1 Nc4 42. Qxb3 Nxa5 43. Qb8+ Bf8 44. Qxe5 Nc4 45. Qd4 Bc5 46. Qd3 Ne5 47. Qb1 Qb6 48. Qc2 Bd4 49. Ng3 h5 50. Qc8+ Kg7 0-1