[Event "Dortmunder Schachtage-08"]
[Site "Dortmund"]
[Date "1980.07.06"]
[Round "6"]
[White "Portisch, Ferenc"]
[Black "Chandler, Murray G"]
[Result "1/2-1/2"]
[WhiteElo "2470"]
[BlackElo "2450"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Bb5+ Nc6 9. O-O cxd4 10. cxd4 O-O 11. Be3 Bg4 12. Bxc6 bxc6 13. Rc1 Qa5 14. Rxc6 Qxa2 15. Qd3 a5 16. d5 Bxf3 17. gxf3 a4 18. Bd4 Bxd4 19. Qxd4 a3 20. Kg2 Rfb8 21. Qe5 Qb2 22. Qxe7 a2 23. Rc7 Rf8 24. Ra7 Qd4 25. Ra3 Rfe8 26. Qd6 Qb2 27. Ra6 Qe2 28. Ra3 Qb2 1/2-1/2