[Event "Buenos Aires"]
[Site "Buenos Aires"]
[Date "1970.07.23"]
[Round "4"]
[White "Tukmakov, Vladimir B"]
[Black "O'Kelly de Galway, Alberic"]
[Result "1/2-1/2"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 h6 5. Bxf6 Qxf6 6. Nc3 c6 7. e3 Nd7 8. cxd5 exd5 9. g3 Nb6 10. Bg2 Bd6 11. O-O O-O 12. Re1 Be6 13. Rb1 Rfd8 14. b4 a6 15. a4 Qe7 16. Qb3 Nc4 17. e4 dxe4 18. Nxe4 Nb6 19. Nxd6 Qxd6 20. Qc2 Bd5 21. Ne5 Bxg2 22. Kxg2 Re8 1/2-1/2