[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Kraft, Chip"]
[Black "Postma, D."]
[Result "1/2-1/2"]
[ECO "C41"]
[PlyCount "44"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Bc4 0-0 7. Bb3 c6 8. 0-0 Nbd7 9. h3 a5 10. Re1 Nc5 11. a4 Nxb3 12. Nxb3 Be6 13. Nd4 Qd7 14. f4 Bc4 15. b3 Ba6 16. Qf3 Rac8 17. Bb2 g6 18. Rad1 Nh5 19. g4 Ng7 20. f5 Bf6 21. Ba1 Bh4 22. Re3 Bg5 1/2-1/2

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Laren, Philip"]
[Black "Postma, D."]
[Result "1-0"]
[ECO "C30"]
[PlyCount "67"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Bc5 4. d3 d6 5. f4 Nc6 6. Nf3 Be6 7. fxe5 dxe5 8. Bg5 Be7 9. 0-0 0-0 10. Kh1 Bg4 11. Bxf6 Bxf6 12. Nd5 Nd4 13. c3 Nxf3 14. gxf3 Bh5 15. Qe2 Bg5 16. Rg1 c6 17. Ne3 Bf4 18. Nf5 Bg6 19. Ne3 Qf6 20. Ng4 Qd6 21. Rad1 b5 22. Bb3 c5 23. Ne3 Bh5 24. Nf5 Qf6 25. Nxg7 Bg6 26. Nh5 Qh4 27. Nxf4 Qxf4 28. Rg4 Qf6 29. Rf1 Kh8 30. Qe3 Rac8 31. Bd5 Qd6 32. Qh6 f5 33. Rg5 Qe7 34. Rxg6 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Bautista, Lester"]
[Result "1-0"]
[ECO "B17"]
[PlyCount "43"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3 e6 7. Bd3 Be7 8. 0-0 0-0 9. a4 Bd6 10. Re1 Re8 11. Ne5 Qc7 12. Nc4 Bf4 13. Qf3 Bxc1 14. Raxc1 Nb6 15. Ne5 Nxa4 16. Nh5 Qe7 17. Nxf6+ Qxf6 18. Qe4 g6 19. Re3 Qe7 20. Ng4 Nb6 21. Qe5 f6 22. Nxf6+ 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "George, Richard"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "61"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. Bg5 Bg4 7. c3 a6 8. a4 Qe7 9. Nbd2 Nd8 10. Qb3 0-0 11. d4 Ba7 12. Rfe1 Rb8 13. Be3 c6 14. dxe5 Bxe3 15. exf6 Qxf6 16. Rxe3 b5 17. Be2 Ne6 18. axb5 axb5 19. e5 dxe5 20. Nxe5 Bxe2 21. Nd7 Qg5 22. Rxe6 Qxd2 23. Nxf8 Rxf8 24. Re3 Rd8 25. h3 g6 26. Qb4 Kg7 27. b3 Bd1 28. Ra7 Qb2 29. Rxf7+ Kxf7 30. Qe7+ Kg8 31. Qxd8+ 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Mason, David"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "96"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Ne2 h6 8. Nf3 Be7 9. 0-0 0-0 10. Bf4 Nb6 11. Bd3 Bd7 12. c4 c5 13. dxc5 Bxc5 14. Qc1 Rc8 15. Rd1 Ng4 16. Bg3 Qe7 17. h3 Nf6 18. a3 Ba4 19. Rd2 Bb3 20. Ne5 Rfd8 21. Qc3 Nxc4 22. Bxc4 Bxc4 23. Nxc4 Rxd2 24. Qxd2 Ne4 25. Qd3 Bxf2+ 26. Bxf2 Nxf2 27. Kxf2 Qh4+ 28. Qg3 Qxg3+ 29. Kxg3 Rxc4 30. Rc1 Rxc1 31. Nxc1 Kf8 32. Nb3 Ke7 33. Kf4 g5+ 34. Kg4 f5+ 35. Kf3 b6 36. g4 Kf6 37. Nd4 a6 38. b4 Ke5 39. Nc6+ Kd5 40. Ne7+ Kc4 41. gxf5 exf5 42. Nxf5 Kb3 43. Nxh6 Kxa3 44. b5 a5 45. Nf5 a4 46. Ke3 Kb4 47. Nd4 Kc5 48. Kd3 Kb4 1/2-1/2

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Szczypka, Tom"]
[Result "1-0"]
[ECO "B27"]
[PlyCount "63"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 g6 3. d4 Bg7 4. Nf3 Nf6 5. Bd3 d5 6. e5 Ng4 7. 0-0 c4 8. Be2 Nc6 9. b3 b5 10. a4 Na5 11. Nbd2 Bd7 12. axb5 Bxb5 13. Ng5 Nh6 14. bxc4 dxc4 15. Nxc4 Nxc4 16. Bxc4 Bxc4 17. Qa4+ Qd7 18. Qxc4 0-0 19. Ra6 Rfc8 20. Qb3 Rab8 21. Qa3 Rb7 22. Ne4 Qf5 23. f3 Rb1 24. Rxa7 Bf8 25. Ra8 Rxa8 26. Qxa8 Rxc1 27. Rxc1 Qf4 28. Re1 Nf5 29. g3 Qh6 30. f4 Qh3 31. Ng5 Qh5 32. Qe8 1-0

[Event "Ann Arbor ch-MI op"]
[Site "Ann Arbor"]
[Date "1983.??.??"]
[Round "?"]
[White "Rawley, Lloyd"]
[Black "Postma, D."]
[Result "1-0"]
[ECO "C81"]
[PlyCount "55"]
[EventDate "1983.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 Na5 10. Rd1 c5 11. c3 Nxb3 12. axb3 Be7 13. Rxa6 0-0 14. Rxa8 Qxa8 15. Qxb5 c4 16. Qa4 Qb7 17. b4 Bf5 18. Nd4 Ra8 19. Qc6 Qxc6 20. Nxc6 Bf8 21. Na3 h6 22. f3 Bd7 23. Na5 Nc5 24. Rxd5 Be6 25. Rd1 Nd3 26. N3xc4 Nxb4 27. cxb4 Bxb4 28. Nc6 1-0

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Hahn, David"]
[Black "Postma, D."]
[Result "1/2-1/2"]
[ECO "C25"]
[PlyCount "34"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Bc5 3. Nf3 d6 4. d4 exd4 5. Nxd4 Nf6 6. Bg5 0-0 7. Qd3 Bxd4 8. Qxd4 Nc6 9. Qd3 h6 10. Be3 Re8 11. 0-0-0 Nb4 12. Qd4 Nc6 13. Qd3 Nb4 14. Qd2 Nxe4 15. Nxe4 Rxe4 16. f3 Re8 17. Qxb4 Rxe3 1/2-1/2

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Posthumus, J."]
[Black "Postma, D."]
[Result "1/2-1/2"]
[ECO "A60"]
[PlyCount "62"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 Be7 7. Be2 0-0 8. Nf3 Re8 9. 0-0 Bg4 10. Bf4 Nbd7 11. Nd2 Bxe2 12. Qxe2 Bf8 13. Bg3 Nxe4 14. Ndxe4 f5 15. Qd3 fxe4 16. Nxe4 Ne5 17. Bxe5 Rxe5 18. f4 Re8 19. Ng5 g6 20. Rf3 Qb6 21. Qc2 Qb4 22. Ne6 Bg7 23. Rb3 Qa4 24. f5 c4 25. Rc3 Qxc2 26. Rxc2 Rac8 27. fxg6 hxg6 28. a4 c3 29. bxc3 Rc4 30. Nxg7 Kxg7 31. Rb1 b6 1/2-1/2

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Ahmadi, R."]
[Result "1/2-1/2"]
[ECO "B04"]
[PlyCount "48"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Nc3 Nb6 6. Bb5+ Bd7 7. e6 fxe6 8. Ng5 Bxb5 9. Nxb5 Qd7 10. Qe2 a6 11. Na3 Nc6 12. Nxe6 Nd8 13. Nxf8 Rxf8 14. c4 Qe6 15. Be3 Qf5 16. 0-0 Ne6 17. Rfe1 0-0-0 18. g3 Ng5 19. Bxg5 Qxg5 20. Rac1 Kb8 21. b4 Rf7 22. Qe3 Qg4 23. Qe6 Qf3 24. Qe3 Qg4 1/2-1/2

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Arganian, David H"]
[Result "1-0"]
[ECO "B16"]
[PlyCount "83"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Bc4 Bf5 7. Ne2 e6 8. Bf4 Bd6 9. Qd2 Qc7 10. Be3 Nd7 11. Bd3 Bg6 12. c4 c5 13. f4 Bxd3 14. Qxd3 0-0-0 15. 0-0 h5 16. b4 cxd4 17. Nxd4 Bxb4 18. Nb5 Nc5 19. Qb1 Qa5 20. a3 Bc3 21. Nxc3 Rd3 22. Nd1 Rhd8 23. Qb4 Qxb4 24. axb4 Nb3 25. Rb1 h4 26. Re1 h3 27. Nf2 Rc3 28. Nxh3 Rh8 29. Nf2 Rg8 30. Ne4 Rd3 31. Rbd1 Rgd8 32. Rxd3 Rxd3 33. h4 b6 34. Nxf6 a5 35. Bxb6 a4 36. Ne4 a3 37. Nc5 Nxc5 38. Bxc5 a2 39. Ra1 Rd2 40. Kh2 f5 41. h5 e5 42. h6 1-0

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Postma, D."]
[Black "Jarosz, Stanley J Jr"]
[Result "1-0"]
[ECO "A17"]
[PlyCount "69"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. g3 c6 5. d4 Bf5 6. Bg2 Nf6 7. Nf3 Be7 8. Qb3 Qc8 9. Bf4 Nbd7 10. Rc1 a6 11. a4 0-0 12. 0-0 Re8 13. Ne5 Be6 14. a5 Bd8 15. Qa3 Bc7 16. f3 Nxe5 17. Bxe5 Nd7 18. Bxc7 Qxc7 19. e4 Nf6 20. e5 Nd7 21. f4 Nf8 22. f5 Bc8 23. Nxd5 Qd8 24. Nb6 Qxd4+ 25. Kh1 Rb8 26. Nc4 Rd8 27. Qb3 Qd3 28. Rc3 Qd4 29. Nd6 Rd7 30. Bxc6 Re7 31. Bd5 Rxe5 32. Nxc8 Rxc8 33. Bxf7+ Kh8 34. Rxc8 Qe4+ 35. Qf3 1-0

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Pray, Don"]
[Black "Postma, D."]
[Result "1/2-1/2"]
[ECO "C44"]
[PlyCount "34"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 5. exd5 Qxd5 6. cxd4 Bg4 7. Be2 Bb4+ 8. Nc3 Bxf3 9. Bxf3 Qc4 10. Qb3 Qxb3 11. axb3 Nxd4 12. Bxb7 Nc2+ 13. Kd1 Nxa1 14. Bc6+ Kd8 15. Bxa8 Ne7 16. Be3 c6 17. Bb7 Nxb3 1/2-1/2

[Event "East Lansing-ch MI op"]
[Site "East Lansing"]
[Date "1982.??.??"]
[Round "?"]
[White "Small, L."]
[Black "Postma, D."]
[Result "1-0"]
[ECO "C31"]
[PlyCount "51"]
[EventDate "1982.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 Qxd5 4. Nc3 Qe6 5. fxe5 Qxe5+ 6. Qe2 Nc6 7. Nf3 Qxe2+ 8. Bxe2 Bf5 9. d3 Nf6 10. Bf4 0-0-0 11. 0-0-0 h6 12. Rhf1 Bb4 13. Ne5 Nd4 14. Bf3 Be6 15. a3 Bxc3 16. bxc3 Nxf3 17. Nxf3 g5 18. Be5 Nd5 19. Bxh8 Rxh8 20. Kd2 c5 21. c4 Ne7 22. Ne5 Rf8 23. Rde1 Kd8 24. c3 Nc6 25. Nxc6+ bxc6 26. Rxe6 1-0

