[Event "IBM"]
[Site "Amsterdam"]
[Date "1973.??.??"]
[Round "5"]
[White "Quinteros, Miguel Angel"]
[Black "Spassky, Boris Vasilievich"]
[Result "1/2-1/2"]

1. Nf3 d5 2. c4 e6 3. d4 Nf6 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Be2 Nc6 9. cxd5 exd5 10. O-O Be6 11. Rc1 Rc8 12. a3 Bb6 13. Qa4 Qe7 14. Bg5 h6 15. Bh4 g5 16. Bg3 Rfd8 17. Rfd1 Nh5 18. Nb5 Qf6 19. Nfd4 Nxg3 20. hxg3 a6 21. Nc3 Bxd4 22. exd4 Ra8 23. Rd2 1/2-1/2