[Event "Dresden International"]
[Site "Dresden"]
[Date "1959.10.24"]
[Round "6"]
[White "Ivkov, Borislav"]
[Black "Bertholdt, Dieter"]
[Result "1/2-1/2"]
[ECO "E54"]
[Opening "Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4 b6 9. Qe2 Bb7 10. Rd1 cxd4 11. exd4 Bxc3 12. bxc3 Nd5 13. Bd2 Nd7 14. Bd3 Qc7 15. Qe4 N5f6 16. Qe3 Ng4 17. Qf4 Qxf4 18. Bxf4 Ngf6 19. Ne5 Rfd8 20. Nxd7 Nxd7 21. Bf1 Rac8 22. Rdc1 Nb8 1/2-1/2