[Event "American Continental 9th"] [Site "Cochabamba BOL"] [Date "2013.05.08"] [EventDate "2013.05.07"] [Round "2"] [Result "1/2-1/2"] [White "Nunez Marquina, Nataly Massiel"] [Black "Juan Carlos Arias"] [ECO "B27"] [WhiteElo "1942"] [BlackElo "2113"] [Source "ChessBase"] [PlyCount "62"] 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Be3 Nf6 7. Be2 O-O 8. O-O d5 9. exd5 Nxd5 10. Nxd5 Nxd4 11. Bxd4 Qxd5 12. Bxg7 Qxd1 13. Raxd1 Kxg7 14. Bf3 Be6 15. Rd4 Rac8 16. c3 Rc7 17. Rfd1 b6 18. a4 Rfc8 19. Bd5 Bxd5 20. Rxd5 Rc4 21. Ra1 R8c5 22. Rxc5 Rxc5 23. Kf1 Kf6 24. Ke2 Re5+ 25. Kd3 Rd5+ 26. Ke3 Re5+ 27. Kd3 Rd5+ 28. Kc2 Re5 29. Rd1 Ke6 30. Rd2 Re1 31. b4 1/2-1/2