[Event "IBM"]
[Site "Amsterdam"]
[Date "1971.07.13"]
[Round "1"]
[White "Adorjan, Andras"]
[Black "Bobotsov, Milko Georgiev"]
[Result "1-0"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nb5 d6 6. Bf4 e5 7. Be3 Nf6 8. Bg5 Qa5+ 9. Qd2 Nxe4 10. Qxa5 Nxa5 11. Be3 Kd7 12. N1c3 Nxc3 13. Nxc3 Be7 14. O-O-O Rd8 15. Nd5 Nc6 16. Bb5 Re8 17. Rhf1 Bd8 18. f4 exf4 19. Bxf4 Re6 20. Nc3 Ke7 21. Bc4 Ne5 22. Bxe6 Bxe6 23. Rfe1 Ba5 24. Bxe5 dxe5 25. Nd5+ Kf8 26. Rxe5 Rd8 27. b3 1-0