[Event "Zonal Halle"]
[Site "Halle/Saale"]
[Date "1963.??.??"]
[Round "?"]
[White "Ivkov, Borislav"]
[Black "Robatsch, Karl"]
[Result "1/2-1/2"]
[ECO "D14"]
[Opening "Slav Defense: Exchange Variation, Symmetrical Line"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. O-O O-O 12. Rfc1 Rfc8 13. h3 h6 14. Qb5 Qb4 15. Qxb4 Nxb4 16. Ne5 Ne8 17. a3 Nc6 18. Nxc6 Rxc6 19. Ne2 Rac8 20. Rxc6 Rxc6 21. Rc1 1/2-1/2