[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Ellebracht, Joerg"]
[Black "Jacobi, Wolfgang"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "91"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. g3 Nc6 4. Bg2 Nf6 5. d3 d6 6. f4 g6 7. Nf3 Bg7 8. 0-0 0-0 9. h3 Bd7 10. Be3 b5 11. Rb1 Rb8 12. Qe1 Qc8 13. Kh2 Qc7 14. Kh1 a5 15. g4 Bxg4 16. hxg4 Nxg4 17. Bg1 Nb4 18. Rc1 e6 19. a3 Nc6 20. Qh4 h5 21. Bh3 Qe7 22. Qxe7 Nxe7 23. Bxg4 hxg4 24. Nh2 b4 25. axb4 axb4 26. Nd1 Rb5 27. Nxg4 f5 28. Nge3 fxe4 29. dxe4 d5 30. c4 bxc3 31. Nxc3 Rxb2 32. exd5 exd5 33. Ncxd5 Nxd5 34. Nxd5 Kf7 35. Rf2 Rxf2 36. Bxf2 Ke6 37. Rxc5 Kd6 38. Ra5 Rf5 39. Ne3 Rxa5 40. Nc4+ Kd5 41. Nxa5 Ke4 42. Bg3 Kf3 43. Kh2 Bh6 44. Nb3 Bxf4 45. Bxf4 Kxf4 46. Nd4 1/2-1/2

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Jacobi, Wolfgang"]
[Black "Gotthardt, Detlef"]
[Result "0-1"]
[ECO "B88"]
[PlyCount "68"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 a6 8. Be3 Be7 9. f4 Qc7 10. Qf3 0-0 11. 0-0-0 Na5 12. e5 dxe5 13. fxe5 Nxb3+ 14. Nxb3 Qxe5 15. g4 Qb8 16. Rhg1 b5 17. g5 Bb7 18. Qh3 Ne4 19. Rd7 Nxc3 20. bxc3 Ba3+ 21. Kb1 Qc8 22. Rd3 Be4 23. Bd4 Bxd3 24. cxd3 e5 25. Qxc8 Raxc8 26. Bxe5 Rfe8 27. d4 Rxc3 28. Rd1 Rec8 29. d5 Rc2 30. d6 R2c6 31. d7 Rd8 32. Bf4 Bb4 33. Rd4 Rc4 34. Rd3 Rxf4 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Jacobi, Wolfgang"]
[Black "Hartung, Thomas"]
[Result "0-1"]
[ECO "C83"]
[PlyCount "96"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Nxe4 7. d4 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 0-0 11. h3 Na5 12. Bc2 Nxd2 13. Qxd2 c5 14. Qd3 g6 15. Bh6 Re8 16. Rfe1 Nc6 17. Nh2 Bg5 18. Bxg5 Qxg5 19. Qf1 Qf4 20. Qe2 Rad8 21. Nf3 d4 22. Qe4 Qxe4 23. Bxe4 Bd5 24. cxd4 Bxe4 25. Rxe4 Nxd4 26. Nxd4 Rxd4 27. Rxd4 cxd4 28. f4 Rc8 29. Rd1 Rc2 30. b4 Rxa2 31. Rxd4 Ra4 32. g3 Kf8 33. Kf2 Ke7 34. Rd6 h5 35. Rb6 Rxb4 36. Rxa6 Rb2+ 37. Ke3 Rb3+ 38. Kf2 b4 39. Rb6 Rb2+ 40. Kf3 Rb1 41. g4 hxg4+ 42. hxg4 b3 43. f5 gxf5 44. gxf5 b2 45. Ke2 Rh1 46. Rb7+ Kf8 47. Rb8+ Kg7 48. f6+ Kg6 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1988.??.??"]
[Round "?"]
[White "Moulton, Paul"]
[Black "Jacobi, Wolfgang"]
[Result "1-0"]
[ECO "A45"]
[PlyCount "69"]
[EventDate "1988.03.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d6 4. Nd2 Bf5 5. e3 e5 6. dxe5 dxe5 7. Bxe5 Nc6 8. Bb5 Qd5 9. Bxc6+ Qxc6 10. Ngf3 Nxd2 11. Qxd2 Rd8 12. Qc3 Qxc3+ 13. bxc3 c5 14. Rc1 Be4 15. Ke2 h5 16. Nd2 Bc6 17. e4 Rh6 18. Rhe1 g5 19. c4 Re6 20. Bc3 g4 21. f3 Bh6 22. Rcd1 b6 23. Nf1 Bf4 24. Rxd8+ Kxd8 25. Rd1+ Ke7 26. Ne3 Ba4 27. Nd5+ Ke8 28. Nxf4 Rh6 29. Bg7 Rh7 30. Bf6 Bd7 31. Nd5 Rh6 32. e5 gxf3+ 33. gxf3 Rg6 34. Nc7+ Kf8 35. Rxd7 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "4"]
[White "Bigge, Matthias"]
[Black "Jacobi, Wolfgang"]
[Result "0-1"]
[ECO "A37"]
[PlyCount "80"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 d6 6. d3 e6 7. 0-0 Nf6 8. Bg5 h6 9. Bd2 0-0 10. Qc1 Kh7 11. a3 Ne8 12. Rb1 Bd7 13. Na2 Rb8 14. Bc3 e5 15. Bd2 Bg4 16. Nc3 Nf6 17. h3 Bd7 18. Nh4 a6 19. f4 Nh5 20. Qe1 Nd4 21. g4 Nxf4 22. Bxf4 exf4 23. Nf3 Nc2 24. Qc1 Ne3 25. Rf2 f5 26. Nh2 fxg4 27. hxg4 Qh4 28. Nf3 Qxg4 29. Ne4 Bc6 30. Nh2 Qh4 31. Nf3 Qe7 32. Bh1 g5 33. Rh2 Kg8 34. Nf2 g4 35. Nh4 g3 36. Rh3 Qg5 37. Ne4 Qg4 38. Bg2 Rbe8 39. Qd2 Bd4 40. Kh1 Nxg2 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "10"]
[White "Heitland, P."]
[Black "Jacobi, Wolfgang"]
[Result "1-0"]
[ECO "C14"]
[PlyCount "119"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. e4 d5 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 7. Nb5 cxd4 8. Nd6+ Kf8 9. Bxe7+ Kxe7 10. f4 Nc6 11. Qg4 Kf8 12. Qg3 Qa5+ 13. Kd1 Nc5 14. Nh3 Ne4 15. Nxe4 dxe4 16. Ng5 e3 17. Qe1 Qb4 18. Qxb4+ Nxb4 19. Nf3 Nc6 20. Bb5 Bd7 21. Ke2 Ke7 22. Rhd1 Rhd8 23. Bxc6 Bxc6 24. Nxd4 Bxg2 25. Kxe3 g6 26. Rd2 Bd5 27. Rad1 a6 28. b3 b5 29. c4 Bb7 30. cxb5 axb5 31. Nxb5 Rd5 32. Nd6 Rxd2 33. Rxd2 Bd5 34. Rc2 Ra6 35. Kd4 f5 36. Nb5 Rb6 37. Nc3 Bf3 38. Na4 Rb7 39. Nc5 Rc7 40. b4 Ra7 41. b5 Bd1 42. Rb2 Ra3 43. b6 Bf3 44. b7 Bxb7 45. Rxb7+ Ke8 46. Rxh7 Rxa2 47. Nxe6 Rg2 48. Kd5 g5 49. hxg5 Rg1 50. Ng7+ Kf7 51. Nh5+ Kg6 52. Rh6+ Kf7 53. e6+ Ke8 54. Nf6+ Kd8 55. Kd6 Rd1+ 56. Nd5 Kc8 57. e7 Re1 58. Re6 Rc1 59. e8Q+ Kb7 60. Qb5+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "6"]
[White "Hogenacker, Jacques"]
[Black "Jacobi, Wolfgang"]
[Result "0-1"]
[ECO "B63"]
[PlyCount "54"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 0-0 9. f3 a6 10. Kb1 Nxd4 11. Qxd4 Qa5 12. Qd2 Qc7 13. Bd3 b5 14. Rde1 Bb7 15. Qf2 b4 16. Bxf6 Bxf6 17. Nd1 Rfc8 18. Qe3 a5 19. f4 Ba6 20. Rhf1 h6 21. Nf2 a4 22. e5 dxe5 23. fxe5 Bxd3 24. Nxd3 Qxc2+ 25. Ka1 a3 26. b3 Bg5 27. Qe2 Bd2 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "3"]
[White "Jacobi, Wolfgang"]
[Black "Baeunker, Manfred"]
[Result "0-1"]
[ECO "C19"]
[PlyCount "78"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Nf3 Nc6 8. a4 Nge7 9. Bd3 c4 10. Be2 Bd7 11. Ng5 h6 12. Nh3 0-0-0 13. 0-0 f5 14. Nf4 g5 15. Nh5 Be8 16. Nf6 Bf7 17. Ba3 Ng8 18. Bh5 Nxf6 19. exf6 g4 20. Bxg4 fxg4 21. Qxg4 Rdg8 22. Qf3 Rg6 23. Rfe1 Rhg8 24. Rab1 Qd8 25. Be7 Nxe7 26. fxe7 Qxe7 27. Qxd5 Rxg2+ 28. Qxg2 Rxg2+ 29. Kxg2 Qg5+ 30. Kf1 Qg4 31. Re3 Be8 32. d5 Bd7 33. Rg3 Qe4 34. d6 b6 35. Rb4 Bc6 36. Rg7 Qxc2 37. f3 Qxc3 38. Rc7+ Kd8 39. Rxb6 axb6 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "8"]
[White "Jacobi, Wolfgang"]
[Black "Bischof, Detlef"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "98"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. a3 cxd4 8. Nxd4 Ndxe5 9. Bb5 Bd7 10. Be3 Nxd4 11. Bxd4 Nc6 12. 0-0 Rc8 13. Kh1 a6 14. Be2 Nxd4 15. Qxd4 Qf6 16. Qd2 Bd6 17. Bd3 0-0 18. Rae1 g6 19. Rf3 b5 20. Nd1 Bc6 21. Ref1 Bb7 22. Ne3 Qxb2 23. Rh3 f5 24. Qf2 Qg7 25. Re1 Bxa3 26. Nf1 Bc5 27. Qh4 Rfe8 28. Nd2 Bb4 29. Qf2 Bc5 30. Qh4 Be7 31. Qg3 Bf6 32. Nf3 b4 33. Ne5 Bxe5 34. Rxe5 a5 35. Qe1 Qf7 36. Rhe3 Bc6 37. h4 Bd7 38. h5 Kg7 39. Qh4 Qf6 40. Qh3 Rh8 41. g4 fxg4 42. h6+ Kf7 43. Qxg4 Rhe8 44. Kg1 a4 45. Rg3 a3 46. Rg5 a2 47. Bxg6+ hxg6 48. Rxg6 a1Q+ 49. Kh2 Rxc2+ 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "11"]
[White "Jacobi, Wolfgang"]
[Black "Bock, Klaus"]
[Result "1-0"]
[ECO "B08"]
[PlyCount "93"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Bc4 c6 5. Nf3 Nf6 6. Be3 b5 7. Bb3 b4 8. e5 Ng4 9. Ne4 Nxe3 10. fxe3 0-0 11. Qd2 a5 12. a3 a4 13. axb4 dxe5 14. Nxe5 Bxe5 15. dxe5 Qxd2+ 16. Kxd2 Bf5 17. Nc5 Na6 18. Nxa6 axb3 19. Nc5 Rfd8+ 20. Kc3 Rxa1 21. Rxa1 bxc2 22. e4 Bg4 23. Kxc2 Be2 24. Re1 Bb5 25. Ra1 Kg7 26. Ra7 Re8 27. Nb3 Kh6 28. Nd4 Kg5 29. g3 Kg4 30. Nxb5 cxb5 31. Rb7 Kf3 32. Rxb5 Kxe4 33. Kc3 Rc8+ 34. Rc5 Rd8 35. b5 f5 36. exf6 exf6 37. Rc6 f5 38. b6 g5 39. Rc7 Rb8 40. b7 h5 41. Kc4 f4 42. Re7+ Kf3 43. Rf7 Kg4 44. gxf4 gxf4 45. Kc5 Kh3 46. Kc6 Kg2 47. Rxf4 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "2"]
[White "Jacobi, Wolfgang"]
[Black "Gast, G."]
[Result "1-0"]
[ECO "B01"]
[PlyCount "120"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. d4 Nf6 4. Nc3 Qd8 5. Nf3 Bf5 6. Bc4 e6 7. Bf4 c6 8. Qe2 Bb4 9. 0-0 0-0 10. a3 Bxc3 11. bxc3 Nd5 12. Bd2 Qa5 13. Bd3 Bxd3 14. Qxd3 Qc7 15. Ng5 Nf6 16. Rfe1 h6 17. Nf3 Nbd7 18. Rab1 Rad8 19. Ne5 Nxe5 20. Rxe5 Ng4 21. Rh5 f5 22. Rh3 e5 23. Qg3 Qf7 24. f3 h5 25. Bg5 Rde8 26. Qh4 exd4 27. fxg4 fxg4 28. Rd3 Re2 29. cxd4 Qf2+ 30. Qxf2 Rfxf2 31. Rg3 Rf5 32. h4 gxh3 33. gxh3 Rxc2 34. h4 b6 35. Rd1 Rd5 36. Rgd3 Kh7 37. R1d2 Rxd2 38. Rxd2 c5 39. dxc5 Rxc5 40. Rd7 Kg6 41. Rxa7 b5 42. Rb7 Rf5 43. Kg2 Kh7 44. Kg3 Kg8 45. Be3 g6 46. Rd7 Rf1 47. Rd5 Rb1 48. Bc5 Rb3+ 49. Kf4 Rh3 50. Kg5 Rg3+ 51. Kf6 Rg4 52. Bd4 Rxh4 53. Rd8+ Kh7 54. Kf7 Rf4+ 55. Bf6 Rxf6+ 56. Kxf6 h4 57. Kg5 h3 58. Rd7+ Kg8 59. Kxg6 Kf8 60. Rh7 Ke8 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "7"]
[White "Jacobi, Wolfgang"]
[Black "Hermann, Manfred"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "68"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Nf6 6. f3 d5 7. Bb5 Qc7 8. Nd2 Bd6 9. Qe2 0-0 10. a3 Nxd4 11. Bxd4 e5 12. Bf2 Qxc2 13. Rb1 dxe4 14. 0-0 exf3 15. gxf3 Bh3 16. Bd3 Bxf1 17. Kxf1 Qc8 18. Ne4 Be7 19. Ng5 h6 20. h4 hxg5 21. hxg5 Nh7 22. Kg2 Nxg5 23. Rh1 Rd8 24. Be3 Rxd3 25. Qxd3 e4 26. Qb1 exf3+ 27. Kf2 Bc5 28. Qd3 Bxe3+ 29. Kxe3 Qg4 30. Qd6 Re8+ 31. Kd3 f2 32. Qh2 Qe2+ 33. Kc3 Rc8+ 34. Kb3 Qc4# 0-1

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "5"]
[White "Jacobi, Wolfgang"]
[Black "Winkler, B."]
[Result "1-0"]
[ECO "C82"]
[PlyCount "71"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[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. c3 Bc5 10. Bc2 0-0 11. Nbd2 f5 12. Nb3 Ba7 13. Nbd4 Nxd4 14. Nxd4 Bxd4 15. cxd4 f4 16. f3 Ng3 17. Rf2 Qh4 18. Bd3 Bf5 19. b4 Bxd3 20. Qxd3 Rf5 21. hxg3 fxg3 22. Qxf5 Qh2+ 23. Kf1 Qh1+ 24. Ke2 gxf2 25. Kxf2 Qh4+ 26. Ke2 Qxd4 27. Rb1 Re8 28. Bb2 Qc4+ 29. Kf2 Qh4+ 30. Kg1 Qxb4 31. e6 Qc5+ 32. Kh1 Re7 33. f4 Qe3 34. Be5 d4 35. Qg5 Kf8 36. Bxg7+ 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "1"]
[White "Menzel, Josef"]
[Black "Jacobi, Wolfgang"]
[Result "1-0"]
[ECO "D66"]
[PlyCount "100"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 0-0 6. e3 h6 7. Bh4 c6 8. Rc1 Nbd7 9. Bd3 dxc4 10. Bxc4 Nb6 11. Bb3 Nbd5 12. 0-0 Ne8 13. Bxe7 Qxe7 14. Ne5 Nef6 15. Qe2 Rd8 16. Rfd1 Bd7 17. Bc2 Be8 18. g3 Nd7 19. f4 f5 20. e4 Nxe5 21. exd5 Ng4 22. Bxf5 Nf6 23. Qxe6+ Qxe6 24. Bxe6+ Kh8 25. dxc6 bxc6 26. d5 Rab8 27. b3 cxd5 28. h3 d4 29. Ne2 d3 30. Nc3 Rb6 31. f5 g6 32. Rd2 Rbd6 33. Rcd1 Bc6 34. Re1 Bf3 35. Re3 Bc6 36. g4 a6 37. Bc4 Be4 38. Nxe4 Nxe4 39. Rxe4 gxf5 40. gxf5 a5 41. Re6 Rd4 42. Rxh6+ Kg7 43. Rg6+ Kh7 44. Rg4 R4d6 45. Rg3 a4 46. Rdxd3 axb3 47. axb3 Kh6 48. Rxd6+ Rxd6 49. Rg6+ Rxg6+ 50. fxg6 Kxg6 1-0

[Event "Dortmund op"]
[Site "Dortmund"]
[Date "1987.??.??"]
[Round "9"]
[White "Sperlich, Stefan"]
[Black "Jacobi, Wolfgang"]
[Result "0-1"]
[ECO "E09"]
[PlyCount "82"]
[EventDate "1987.04.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c6 4. Bg2 d5 5. Qc2 Nbd7 6. Nf3 Be7 7. 0-0 0-0 8. Nbd2 a5 9. b3 Ne8 10. e4 dxe4 11. Nxe4 Nef6 12. Bf4 Nxe4 13. Qxe4 Re8 14. Rfd1 Bf6 15. Rd2 g5 16. Be5 Be7 17. d5 exd5 18. Qd4 Nxe5 19. Nxe5 Bb4 20. Rd3 Qe7 21. Ng4 Bxg4 22. Qxg4 Qf6 23. Rad1 dxc4 24. Rf3 Qg6 25. bxc4 Re6 26. Rd7 Rf6 27. Rfd3 Re8 28. h4 h6 29. h5 Qg7 30. Rxb7 Rfe6 31. Rdd7 Qa1+ 32. Kh2 Rf6 33. Qd4 Qxd4 34. Rxd4 Rxf2 35. Kh3 Bc5 36. Re4 Rd8 37. Re1 Rdd2 38. Bxc6 Bd6 39. Bd5 Kf8 40. Rb6 f5 41. Rh1 g4+ 0-1

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "4"]
[White "Hopfgarten, Ernst"]
[Black "Jacobi, Wolfgang"]
[Result "1-0"]
[ECO "B46"]
[PlyCount "93"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Nc6 6. Be3 Nf6 7. a3 d5 8. exd5 exd5 9. Be2 Bd6 10. Bf3 Be6 11. Nxe6 fxe6 12. 0-0 0-0 13. g3 Qc7 14. Bg2 Rad8 15. Ne2 Nd7 16. Nd4 Rfe8 17. Bg5 Nxd4 18. Bxd8 Rxd8 19. Qxd4 Ne5 20. Rae1 Rf8 21. Re2 Rf5 22. b4 Qf7 23. Qe3 b5 24. Qb6 Bc7 25. Qxa6 h6 26. f4 Nc4 27. Qxe6 Qxe6 28. Rxe6 Nxa3 29. Rc6 Bd8 30. Rc8 Rf8 31. Bxd5+ Kh8 32. Rc3 Bb6+ 33. Kg2 Rd8 34. Rxa3 Rxd5 35. Ra8+ Kh7 36. Rb8 Rd2+ 37. Kh3 Be3 38. Rxb5 Rxc2 39. Re5 Bd4 40. Re4 Bb6 41. Rb1 h5 42. Re6 Bd4 43. b5 g6 44. b6 h4 45. b7 Kh6 46. b8Q Kh5 47. Rb5+ 1-0

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "5"]
[White "Jacobi, Wolfgang"]
[Black "Goebel, Karl Heinz"]
[Result "0-1"]
[ECO "A17"]
[PlyCount "52"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d3 d5 4. cxd5 exd5 5. Bg5 Nbd7 6. Nxd5 c6 7. Nxf6+ Nxf6 8. e4 Qd4 9. Be2 Qxb2 10. Nf3 Bb4+ 11. Nd2 Be6 12. 0-0 Bxa2 13. Bxf6 gxf6 14. Nc4 Bxc4 15. dxc4 Rd8 16. Qa4 a5 17. Bg4 Rg8 18. Bf5 Qe5 19. g3 h5 20. Rad1 Ke7 21. Qb3 h4 22. Rd3 Rxd3 23. Qxd3 Rd8 24. Qe2 hxg3 25. hxg3 Bc5 26. Qb2 Qxg3+ 0-1

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "7"]
[White "Jacobi, Wolfgang"]
[Black "Hermesmann, Hans"]
[Result "0-1"]
[ECO "A24"]
[PlyCount "66"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 c6 4. Nf3 d6 5. d3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. Bd2 Nh5 9. Qc2 f5 10. Rad1 f4 11. b4 Be6 12. Ne4 h6 13. Bc3 Qe7 14. Bb2 Nd7 15. d4 d5 16. cxd5 cxd5 17. Nc5 e4 18. Nxe6 Qxe6 19. Nd2 e3 20. Nf3 exf2+ 21. Rxf2 fxg3 22. hxg3 Nxg3 23. Ne5 Rxf2 24. Kxf2 Nf5 25. Qc7 Nb6 26. a4 Rf8 27. Bf3 Qf6 28. Qxb7 Qh4+ 29. Kg2 Qg3+ 30. Kh1 Ne3 31. Nd7 Rf4 32. Qb8+ Kh7 33. Bg4 Qg2# 0-1

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "1"]
[White "Jacobi, Wolfgang"]
[Black "Krueger, A."]
[Result "1-0"]
[ECO "A17"]
[PlyCount "91"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. cxd5 exd5 5. Bg2 c6 6. d3 Bf5 7. Qb3 Qd7 8. Nf3 Be7 9. Bf4 0-0 10. 0-0 Na6 11. d4 b6 12. Ne5 Qc8 13. Rac1 Qb7 14. Rfe1 Be6 15. f3 c5 16. e3 Nh5 17. g4 Nxf4 18. exf4 cxd4 19. f5 Nc5 20. Qc2 dxc3 21. fxe6 fxe6 22. Qxc3 Qa6 23. a3 Bf6 24. Rcd1 Rac8 25. Qe3 Rfe8 26. Bf1 Qa4 27. Rd4 Qb3 28. Qf2 Bxe5 29. Rxe5 Nd7 30. Re3 Qc2 31. Qe1 Qxb2 32. Rd2 Qf6 33. Bb5 Rc7 34. Rxd5 exd5 35. Rxe8+ Nf8 36. Qd1 Qg5 37. Kg2 Rc5 38. Qe2 Qg6 39. Bd3 Qc6 40. Bf5 Qf6 41. Qe6+ Kh8 42. Qxf6 gxf6 43. Rxf8+ Kg7 44. Rd8 Rc3 45. Rd7+ Kh6 46. h4 1-0

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "9"]
[White "Jacobi, Wolfgang"]
[Black "Mucke, D."]
[Result "0-1"]
[ECO "A34"]
[PlyCount "130"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d3 d5 8. cxd5 Nxd5 9. Qb3 Nxc3 10. bxc3 Qd7 11. Ng5 e6 12. Rb1 b6 13. Ba3 Rb8 14. Bh3 Qd5 15. Ne4 Qxb3 16. Rxb3 f5 17. Ng5 Bd7 18. Bc1 Na5 19. Ra3 Rbc8 20. c4 Rc7 21. Bg2 Re8 22. Nf3 Nc6 23. Rb3 Nb4 24. Bb2 Nxa2 25. Ne5 Rd8 26. f4 Nb4 27. Ra1 Nc2 28. Ra2 Nb4 29. Ra1 Be8 30. Bc3 Nc2 31. Ra6 Nd4 32. Bxd4 Rxd4 33. Nf3 Rd6 34. Rba3 Rdd7 35. Ne1 Re7 36. Nc2 Bf6 37. Ra2 h6 38. Kf1 h5 39. Bf3 Kg7 40. e3 Kh6 41. h4 Kg7 42. Bd1 Kh6 43. Na3 e5 44. Nb1 exf4 45. exf4 Bg7 46. Ba4 Bxa4 47. R2xa4 Re3 48. Rxa7 Rxa7 49. Rxa7 Rxd3 50. Kg2 Rd1 51. Na3 Rc1 52. Rb7 Bb2 53. Nb5 Rxc4 54. Nd6 Rc2+ 55. Kf3 Bg7 56. Nf7+ Kh7 57. Rxb6 Rc3+ 58. Kg2 Rc2+ 59. Kh3 Bd4 60. Ng5+ Kg7 61. Rb7+ Kg8 62. Rc7 Re2 63. Rc6 Bg1 64. g4 hxg4+ 65. Kg3 Bh2# 0-1

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "3"]
[White "Jacobi, Wolfgang"]
[Black "Neukoetter, Gerhard"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "77"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d3 Nc6 4. c3 d5 5. exd5 Qxd5 6. Be2 Bf5 7. Be3 e4 8. Nd4 exd3 9. Bf3 Be4 10. Nd2 Ne5 11. Nxe4 Nxe4 12. c4 Qa5+ 13. Kf1 Nd6 14. Nb3 Qa6 15. Nc5 Qxc4 16. Rc1 Qb5 17. Bd2 Be7 18. Qe1 Nxf3 19. gxf3 b6 20. a4 Qc6 21. Ne4 Qd7 22. h4 c5 23. h5 0-0-0 24. b4 Nxe4 25. Qxe4 Kb8 26. bxc5 Bxc5 27. Bf4+ Bd6 28. Kg2 Qb7 29. Qf5 Ka8 30. a5 Bxf4 31. Qxf4 d2 32. Rc7 Qa6 33. Rd1 Qxa5 34. Qc4 Kb8 35. Qc6 Qa6 36. Ra1 Rc8 37. Rxa6 Rxc7 38. Qd6 Kb7 39. Ra2 1-0

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "2"]
[White "Jaeger, Frode Bull"]
[Black "Jacobi, Wolfgang"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "131"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. Be3 Be7 8. 0-0 0-0 9. f4 Nc6 10. Kh1 Qc7 11. Nxc6 bxc6 12. Bf3 Rb8 13. b3 Bb7 14. Qe2 c5 15. Bg1 Bc6 16. Qxa6 Bb7 17. Qe2 Qa5 18. Na4 d5 19. exd5 Nxd5 20. Qe1 Qc7 21. Rd1 Nxf4 22. Bxb7 Rxb7 23. Qf2 Nd5 24. c4 Nf6 25. Nxc5 Ng4 26. Qf3 Bxc5 27. Qxg4 Ra7 28. a4 Rb8 29. Rd3 Rab7 30. Qd1 Be7 31. h3 Qc6 32. Bh2 Ra8 33. Qf3 Qxf3 34. gxf3 f6 35. Re1 Kf7 36. Kg2 Bc5 37. Red1 Ke7 38. f4 Ra6 39. Rg3 g6 40. h4 Rab6 41. Rdd3 Kf7 42. Rgf3 Bb4 43. Bg1 Rc6 44. Kf1 Re7 45. Bd4 Rd7 46. Ke2 Rcd6 47. Bb6 Ke7 48. a5 Rb7 49. c5 Rc6 50. a6 Rbxb6 51. cxb6 Rxb6 52. Rd4 Ba5 53. b4 Bxb4 54. a7 Ra6 55. Rxb4 Rxa7 56. Rfb3 Kd6 57. Rb6+ Kd5 58. Ke3 Ra1 59. Rd3+ Kc5 60. Rbd6 Rh1 61. Rxe6 Re1+ 62. Kf3 Rxe6 63. Rd7 h5 64. f5 gxf5 65. Kf4 Re5 66. Rh7 1/2-1/2

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "6"]
[White "Plass, Burckhard"]
[Black "Jacobi, Wolfgang"]
[Result "0-1"]
[ECO "E01"]
[PlyCount "102"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. g3 d5 4. Bg2 Nc6 5. cxd5 Nxd5 6. e4 Nb6 7. Ne2 Bd7 8. 0-0 Be7 9. b3 h5 10. Nbc3 Bf6 11. e5 Bg5 12. Bxg5 Qxg5 13. f4 Qg6 14. Be4 Qh6 15. h4 f5 16. exf6 gxf6 17. a4 a6 18. a5 Nd5 19. Nxd5 exd5 20. Bxd5 0-0-0 21. Bxc6 Bxc6 22. Nc3 Qg7 23. Kh2 Rhe8 24. Qd3 Qg4 25. b4 Rd7 26. b5 Bxb5 27. Nxb5 axb5 28. a6 Re2+ 29. Kg1 bxa6 30. Rxa6 Kd8 31. Ra8+ Ke7 32. Rf3 Qe6 33. Ra6 Rd6 34. Rxd6 cxd6 35. Qh7+ Kd8 36. Qh8+ Kd7 37. Qh7+ Kc6 38. Qd3 Re1+ 39. Kf2 Rh1 40. Qc3+ Kb6 41. Re3 Qa2+ 42. Kf3 f5 43. Re2 Rf1+ 44. Ke3 Qd5 45. Kd2 Rf3 46. Re3 Qa2+ 47. Kc1 Rf1+ 48. Re1 Qa1+ 49. Qxa1 Rxe1+ 50. Kb2 Rxa1 51. Kxa1 Ka5 0-1

[Event "Hagen Hohenlimburg op"]
[Site "Hohenlimburg"]
[Date "1978.??.??"]
[Round "8"]
[White "Wisniewski, R."]
[Black "Jacobi, Wolfgang"]
[Result "1-0"]
[ECO "E14"]
[PlyCount "101"]
[EventDate "1978.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 c5 4. e3 b6 5. Nc3 Bb7 6. d5 d6 7. e4 a6 8. Qb3 g6 9. Be2 e5 10. Bg5 Bg7 11. 0-0 0-0 12. a4 a5 13. Nd2 Re8 14. Rae1 Na6 15. Nb5 Nb4 16. Bd1 Ba6 17. Qh3 Bc8 18. Qh4 Rb8 19. Re3 h6 20. Bxh6 Ng4 21. Bg5 Qd7 22. Rg3 f6 23. Bxg4 fxg5 24. Qxg5 Qd8 25. Qxg6 Bxg4 26. Rxg4 Re7 27. Nxd6 Qc7 28. Nf3 Nd3 29. Nf5 Rd7 30. Ng5 Nf4 31. Qh7+ Kf8 32. Ne6+ Nxe6 33. dxe6 Re7 34. Nh6 Ke8 35. Qg8+ Bf8 36. Rd1 Rg7 37. Rxg7 Qxg7 38. Qf7+ Qxf7 39. Nxf7 Ke7 40. Nxe5 Bg7 41. Rd7+ Kxe6 42. Rxg7 Kxe5 43. Re7+ Kd4 44. f4 Ke3 45. f5 Rd8 46. h4 Rd1+ 47. Kh2 Kf2 48. f6 Rg1 49. Rg7 Re1 50. Rg4 Rf1 51. Rf4+ 1-0

