[Event "Anderssen Memorial-02"]
[Site "Buesum"]
[Date "1969.05.04"]
[Round "4"]
[White "Ivkov, Borislav"]
[Black "Hecht, Hans Joachim"]
[Result "1/2-1/2"]
[ECO "E14"]
[Opening "Queen's Indian Defense: Spassky System"]

1. c4 Nf6 2. d4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7 6. Bd3 c5 7. O-O cxd4 8. exd4 O-O 9. a3 Be7 10. b3 d6 11. Bb2 Nbd7 12. Re1 Re8 13. b4 Bf8 14. Qb3 Qc7 15. Rac1 Rac8 16. Ng5 Qb8 17. Bb1 h6 18. Nge4 Nxe4 19. Bxe4 Nf6 20. Bb1 g6 21. Qg3 Bg7 22. f3 Nh5 23. Qg4 Qc7 1/2-1/2