[Event "Milwaukee North Central op"]
[Site "Milwaukee"]
[Date "1971.??.??"]
[Round "1"]
[White "Ersfeld, Eugene"]
[Black "Warren, Jim G"]
[Result "0-1"]
[ECO "E38"]
[PlyCount "84"]
[EventDate "1971.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. e3 Nc6 6. Nf3 d5 7. a3 Bxc3+ 8. bxc3 0-0 9. cxd5 exd5 10. c4 cxd4 11. cxd5 Nxd5 12. exd4 Re8+ 13. Be2 Qe7 14. Ra2 Ncb4 15. axb4 Nxb4 16. Qd2 Nxa2 17. Qxa2 Be6 18. Qc2 Bc4 19. Be3 Bxe2 20. Qxe2 Qb4+ 21. Nd2 Rad8 22. 0-0 Rxd4 23. Qf3 Rxd2 24. Bxd2 Qxd2 25. Qxb7 a5 26. Qb5 Rc8 27. Qa6 Rd8 28. Qb5 g6 29. g3 Rd5 30. Qa4 h5 31. h4 Kh7 32. Ra1 Qe2 33. Qb3 Rd7 34. Qc3 Rd1+ 35. Rxd1 Qxd1+ 36. Kg2 a4 37. Qc7 Qd5+ 38. Kh2 Qf3 39. Qa7 a3 40. Kg1 Kg7 41. Qd4+ Qf6 42. Qa7 Qb2 0-1

