[Event "IBM"]
[Site "Amsterdam"]
[Date "1970.07.20"]
[Round "6"]
[White "Ciric, Dragoljub M"]
[Black "Langeweg, Kick"]
[Result "1-0"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Nb3 e6 8. O-O Be7 9. Kh1 O-O 10. f4 Rd8 11. Bd3 a6 12. Qf3 Qc7 13. Bd2 b5 14. a3 b4 15. axb4 Nxb4 16. Nb5 Qb8 17. Bxb4 axb5 18. Rae1 Re8 19. Nd4 Bd7 20. c3 Qb7 21. h3 Rab8 22. g4 e5 23. Ne2 Bc6 24. Ng3 exf4 25. Qxf4 Bf8 26. g5 1-0