[Event "IBM"]
[Site "Amsterdam"]
[Date "1969.??.??"]
[Round "5"]
[White "Tatai, Stefano"]
[Black "Darga, Klaus"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. O-O Bb4 8. Qd3 Nc6 9. Bd2 Nxd4 10. Qxd4 Bc5 11. Qd3 b5 12. Rae1 Rb8 13. Bd1 b4 14. Na4 Bd6 15. f4 e5 16. Qg3 O-O 17. f5 Re8 18. Bg5 Be7 19. b3 Bb7 20. c4 bxc3 21. Nxc3 Rbc8 22. Bxf6 Bxf6 23. Nd5 Bxd5 24. exd5 Qc5+ 25. Kh1 Qxd5 26. Be2 Qa8 27. Qd3 d5 28. Qxa6 e4 29. Qxa8 Rxa8 30. Bb5 Bc3 31. Bxe8 Rxe8 32. Re2 d4 33. Rd1 g6 34. f6 Kf8 35. Rc2 e3 36. Re2 Re6 37. g3 Rxf6 38. Kg2 h5 39. Rd3 g5 40. Rexe3 dxe3 41. Rxc3 Rf2+ 42. Kg1 1/2-1/2