[Event "CalChess Masters"]
[Site "Berkeley"]
[Date "1983.03.13"]
[Round "9"]
[White "Christiansen, Larry Mark"]
[Black "Middleton, Ervin R"]
[Result "1-0"]
[WhiteElo "2520"]
[BlackElo "2295"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 Bf5 5. e3 e6 6. Bxc4 Nbd7 7. O-O Be7 8. Qe2 c6 9. h3 O-O 10. e4 Bg6 11. Rd1 Re8 12. Bf4 Bb4 13. Bd3 Qa5 14. Rac1 Rad8 15. a3 Bf8 16. Nb1 Qb6 17. b4 Rc8 18. Nbd2 Qd8 19. Nc4 Nb6 20. Na5 Qe7 21. Nd2 Red8 22. Ndb3 Ne8 23. Nc5 Nd6 24. Bb1 Rc7 25. Ba2 Nbc8 26. Nc4 b6 27. Na6 Rb7 28. f3 Nb5 29. Be3 Ncd6 30. Ne5 Qe8 31. a4 Nc7 32. Nxc6 Rc8 33. Nxc7 Rbxc7 34. b5 a6 35. d5 exd5 36. Bxd5 axb5 37. axb5 Ra8 38. Ra1 Rxa1 39. Rxa1 Nc8 40. Ra8 Qd7 41. f4 h6 42. Qg4 1-0