[Event "Chigorin Memorial-02"]
[Site "Rostov on Don"]
[Date "1961.06.04"]
[Round "6"]
[White "Polugaevsky, Lev"]
[Black "Estrada Degrandi, Walter"]
[Result "1/2-1/2"]

1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. Qc2 d5 5. Bg5 Be7 6. e3 c6 7. Bd3 a6 8. Nf3 Nbd7 9. O-O Ne4 10. Bxe7 Qxe7 11. Rab1 O-O 12. b4 Nd6 13. Ne2 b5 14. c5 Nc4 15. Bxc4 bxc4 16. Ne5 Nxe5 17. dxe5 Bd7 18. f4 a5 19. a3 axb4 20. axb4 Ra3 21. Qc1 Rfa8 22. Nd4 Qe8 23. Nc2 Ra2 24. Qd2 R8a3 1/2-1/2