[Event "wch jr ch"]
[Site "Santiago CHI"]
[Date "1990.08.??"]
[EventDate "1990.08.00"]
[Round "4"]
[Result "0-1"]
[White "Jan Sorensen"]
[Black "Boris Alterman"]
[ECO "B70"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "64"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8.
Kh1 a6 9. a4 Nc6 10. Nb3 Be6 11. Bg5 Na5 12. Nxa5 Qxa5 13. f4 Rac8 14. Bd3
Bc4 15. f5 Qb4 16. Rb1 b5 17. axb5 axb5 18. Qf3 Qc5 19. Nd1 d5 20. e5 Ne4
21. Be3 Qc7 22. f6 exf6 23. exf6 Nxf6 24. Bd4 Ne4 25. Bxg7 Kxg7 26. Ne3 Qe5
27. Ng4 Qg5 28. Bxc4 Rxc4 29. Rbd1 Nd2 30. Rxd2 Qxd2 31. Qf6+ Kg8 32. Ne5
Rxc2 0-1