[Event "Anderssen Memorial-02"]
[Site "Buesum"]
[Date "1969.05.10"]
[Round "9"]
[White "Zaitsev, Alexander N"]
[Black "Ivkov, Borislav"]
[Result "1/2-1/2"]
[ECO "E15"]
[Opening "Queen's Indian Defense: Fianchetto Variation"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Nbd2 Bb7 6. Bg2 c5 7. O-O cxd4 8. Nb3 O-O 9. Nbxd4 Be7 10. b3 Nc6 11. Ne5 Qc7 12. Ndxc6 dxc6 13. Bb2 c5 14. f3 Rad8 15. Qc2 Nd7 16. Ng4 Nb8 17. Qc3 f6 18. Qe3 Rd6 19. Nf2 Nc6 20. Ne4 Rdd8 21. Nc3 Qc8 22. Bh3 f5 23. Rad1 Bf6 24. Qc1 1/2-1/2