[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.13"]
[Round "9"]
[White "Feinstein, Michael"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "D34"]
[WhiteElo "2229"]
[BlackElo "2300"]
[PlyCount "30"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. Bg5 c4 10. Ne5 Be6 11. Nxc6 bxc6 12. b3 Qa5 13. Na4 Rac8 14. bxc4 dxc4 15. Bxf6 gxf6 1/2-1/2

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.12"]
[Round "8"]
[White "Jacobs, John N"]
[Black "Perez de Aranda, Leonardo Ivan"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2300"]
[BlackElo "2109"]
[PlyCount "61"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. g3 c5 4. Bg2 Nc6 5. d3 e5 6. b4 cxb4 7. a3 Nf6 8. Qa4 Nd7 9. axb4 Bxb4+ 10. Nfd2 0-0 11. Bxc6 Bxd2+ 12. Nxd2 bxc6 13. Qxc6 Nb6 14. 0-0 Bh3 15. Re1 Re8 16. Ne4 Re6 17. Qb5 h6 18. Bd2 Nd7 19. Ba5 Qc8 20. Qd5 Nf6 21. Nxf6+ gxf6 22. Bd2 h5 23. Reb1 Rb8 24. f3 Ra6 25. Kf2 Rxa1 26. Rxa1 Rb7 27. Qe4 Bf5 28. Qh4 Rb2 29. Qxf6 Bxd3 30. Bh6 Rxe2+ 31. Kg1 1-0

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.11"]
[Round "6"]
[White "He, Tommy O"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2055"]
[BlackElo "2300"]
[PlyCount "73"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 e6 4. Nc3 d6 5. d4 cxd4 6. Nxd4 Nf6 7. g3 Qc7 8. Qc2 b6 9. b3 Bb7 10. Bg2 Nbd7 11. 0-0 Rc8 12. Bb2 Be7 13. h3 0-0 14. Rad1 g6 15. Qe2 Rfe8 16. f4 e5 17. Nc2 exf4 18. gxf4 Bf8 19. Nd4 Nxe4 20. Nxe4 Bxe4 21. Bxe4 Nc5 22. Qg2 Nxe4 23. f5 Bg7 24. fxg6 hxg6 25. Nf5 Qc5+ 26. Bd4 Bxd4+ 27. Nxd4 Re5 28. Kh1 Rce8 29. Rf4 R8e7 30. h4 b5 31. cxb5 axb5 32. b4 Qd5 33. Kh2 Nc3 34. Rd2 Re4 35. Nf5 Qe5 36. Nxe7+ Kf8 37. Nxg6+ 1-0

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.11"]
[Round "7"]
[White "Jacobs, John N"]
[Black "Calugar, Arthur"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2300"]
[BlackElo "2299"]
[PlyCount "50"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. cxd5 Nxd5 7. Nc3 Nb6 8. d3 Nc6 9. Be3 a5 10. Qd2 Re8 11. Bh6 Bh8 12. Rac1 a4 13. Ne4 Be6 14. Nc5 Bxa2 15. Nxb7 Qc8 16. Rxc6 Qxb7 17. Rfc1 Nc4 18. R1xc4 Bxc4 19. Ne5 Bxe5 20. Rxg6+ hxg6 21. Bxb7 Rab8 22. Qa5 Bxb2 23. Qxa4 Be6 24. Qc6 Be5 25. Bf4 Bd6 1/2-1/2

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.11"]
[Round "5"]
[White "Salazar, Aura Cristina"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "2202"]
[BlackElo "2300"]
[PlyCount "75"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. c4 e6 4. Nc3 d6 5. d4 cxd4 6. Nxd4 Nf6 7. Be2 Nc6 8. 0-0 Bd7 9. Be3 Be7 10. Qd2 0-0 11. Rfd1 Rb8 12. Rac1 Nxd4 13. Bxd4 Bc6 14. Qe3 Nd7 15. Qg3 g6 16. Ba7 Ra8 17. Be3 Qa5 18. Bf4 Qb4 19. Rd2 e5 20. Bh6 Rfd8 21. a3 Qb6 22. Bg5 Bxg5 23. Qxg5 Nc5 24. Qe3 Qb3 25. h4 Bxe4 26. h5 Bc6 27. Qg5 Ne6 28. Qf6 Ng7 29. Nd5 Bxd5 30. cxd5 Ne8 31. Qe7 Rdc8 32. Rxc8 Rxc8 33. Bg4 Ra8 34. Bd7 Ng7 35. h6 Qc4 36. Rd1 Qc7 37. g4 Rd8 38. Qf6 1-0

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.10"]
[Round "3"]
[White "Guadalupe, Francisco II"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2214"]
[BlackElo "2300"]
[PlyCount "58"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nf3 Bg7 4. Nc3 c6 5. Be3 b5 6. Qd2 Nd7 7. a4 b4 8. Ne2 a5 9. Ng3 Nb6 10. c4 bxc3 11. bxc3 Bg4 12. Be2 h5 13. h3 Bxf3 14. Bxf3 Nc4 15. Qd3 d5 16. 0-0 e6 17. Rab1 Ne7 18. Rb3 Nc8 19. e5 N8b6 20. Ra1 Bf8 21. Nf1 Be7 22. Be2 Kf8 23. f4 Kg7 24. Bf2 Qc7 25. Qc2 Rab8 26. Nd2 Nxd2 27. Qxd2 Nd7 28. Rab1 Rxb3 29. Rxb3 Rb8 1/2-1/2

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.10"]
[Round "4"]
[White "Jacobs, John N"]
[Black "Langer, Mikhail"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2300"]
[BlackElo "2211"]
[PlyCount "85"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 d5 3. c4 d4 4. Bg2 Nc6 5. d3 e5 6. b4 cxb4 7. a3 Nf6 8. 0-0 Bf5 9. Qa4 Qd7 10. axb4 Bxb4 11. Nxe5 Nxe5 12. Qxb4 Nc6 13. Qc5 Bh3 14. Ba3 h5 15. Qg5 h4 16. Qxg7 0-0-0 17. Qxf6 hxg3 18. fxg3 Bxg2 19. Kxg2 Qh3+ 20. Kf2 Rh6 21. Qf4 Re8 22. Ke1 Rhe6 23. Ra2 Ne5 24. Rd2 Qxh2 25. Kd1 Qh3 26. Bc5 Nc6 27. Re1 Qh5 28. Bxd4 Qa5 29. Bc3 Nb4 30. Rb2 Qa4+ 31. Kd2 Nc6 32. Qf5 a6 33. Qxf7 Nd8 34. Qf5 Qc6 35. Qd5 Qc7 36. Qf3 Nc6 37. g4 Qh2 38. g5 Qh4 39. Bf6 Rd6 40. e4 Nd4 41. Bxd4 Rxd4 42. Re3 Qh2+ 43. Qe2 1-0

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.09"]
[Round "2"]
[White "Jacobs, John N"]
[Black "Li, Zhichao"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2300"]
[BlackElo "2145"]
[PlyCount "59"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bg4 5. d3 Nbd7 6. Nbd2 Qa5 7. a3 e6 8. b4 Qc7 9. h3 Bxf3 10. Nxf3 Be7 11. g3 0-0 12. Bg2 Nh5 13. 0-0 Bf6 14. Qc2 Bxb2 15. Qxb2 Nhf6 16. Qc2 Rac8 17. Rfc1 Qb8 18. Qb2 Rfd8 19. Rc2 e5 20. cxd5 cxd5 21. Rxc8 Rxc8 22. Rc1 d4 23. e3 dxe3 24. Rxc8+ Qxc8 25. fxe3 Qc7 26. g4 Nd5 27. Kf2 Nc3 28. Kg1 Nd5 29. Kf2 Nc3 30. Kg1 1/2-1/2

[Event "Richardson UTD op"]
[Site "Richardson"]
[Date "2013.03.09"]
[Round "1"]
[White "Moradiabadi, Elshan"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B28"]
[WhiteElo "2565"]
[BlackElo "2300"]
[PlyCount "70"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 153 Extra"]
[Source "ChessBase"]
[SourceDate "2013.04.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.04.22"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 c5 3. e4 a6 4. c3 d5 5. e5 Bd7 6. Nbd2 cxd4 7. Nxd4 Nc6 8. N2f3 Nge7 9. Bd3 Ng6 10. Qe2 Nxd4 11. Nxd4 Bc5 12. 0-0 Bxd4 13. cxd4 Qb6 14. Be3 0-0 15. a4 Rfc8 16. f4 Qb3 17. Ra3 Qb4 18. Qf2 Qe7 19. g4 f5 20. gxf5 exf5 21. Qg2 Qf7 22. Bb1 Nf8 23. Ba2 Be6 24. Rb3 b5 25. axb5 axb5 26. Bb1 Rab8 27. Bd2 Qa7 28. Qf2 Rc4 29. Bd3 Rc6 30. Bb4 Qa4 31. Bc2 Rbc8 32. Bc5 Nd7 33. Ra3 Nxc5 34. Bxa4 Nxa4 35. Qh4 R6c7 1-0

[Event "Dallas Pinfork op1"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Bick, John D"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "D32"]
[BlackElo "2290"]
[PlyCount "118"]
[EventDate "1996.03.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Bd7 8. Bf4 Nf6 9. Qd2 Bb4 10. a3 Bxc3 11. Qxc3 0-0 12. Bg5 Ne4 13. Bxd8 Nxc3 14. Bh4 Nd4 15. Rc1 Na4 16. e3 Rac8 17. Rd1 Nc2+ 18. Kd2 Nxb2 19. Rb1 Nc4+ 20. Bxc4 Rxc4 21. Nf3 Nxa3 22. Rxb7 Bc6 23. Rb3 Ra4 24. Rc1 Nc4+ 25. Ke1 Na5 26. Rbc3 Bxf3 27. Be7 Bg4 28. Bxf8 Kxf8 29. Rc7 Nb3 30. Rb1 Be6 31. Rc3 Rb4 32. f4 g6 33. g4 Kg7 34. f5 gxf5 35. gxf5 Bd5 36. Kf2 Kf6 37. e4 Rxe4 38. Rcxb3 Bxb3 39. Rxb3 Rf4+ 40. Kg2 Rxf5 41. Rb7 a5 42. Ra7 Rb5 43. Kf3 Rb3+ 44. Kg4 Ra3 45. h4 Kg7 46. Kh5 Ra1 47. Ra6 a4 48. Ra5 a3 49. Ra7 a2 50. Ra6 f5 51. Ra7+ Kf6 52. Ra5 f4 53. Ra3 Kf5 54. Kh6 Rh1 55. Ra5+ Kg4 56. Rxa2 Rxh4+ 57. Kg7 f3 58. Kf6 Kg3 59. Kg5 Rb4 0-1

[Event "Dallas Pinfork op4"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Grubbs, Steven M"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B58"]
[BlackElo "2290"]
[PlyCount "48"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nf3 h6 8. h3 Be7 9. Be3 Be6 10. Qd2 Qa5 11. 0-0 0-0 12. Rfd1 Kh7 13. Nh4 Rfd8 14. a3 Rac8 15. Rac1 a6 16. b4 Qc7 17. Na4 Nd4 18. Bxd4 exd4 19. Qxd4 Nd7 20. Nf5 Bxf5 21. exf5 b5 22. Nb2 Bf6 23. Qg4 Bxb2 24. Rb1 Bf6 0-1

[Event "Dallas Pinfork op3"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "6"]
[White "Gurevich, Dmitry"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B36"]
[WhiteElo "2535"]
[BlackElo "2290"]
[PlyCount "73"]
[EventDate "1996.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nc3 g6 6. e4 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Bg5 h6 10. Be3 0-0 11. Qd2 Kh7 12. f3 Be6 13. Rc1 Qa5 14. 0-0 Rfc8 15. b3 a6 16. f4 b5 17. f5 gxf5 18. exf5 Bd7 19. Rf4 Rh8 20. b4 Qd8 21. cxb5 axb5 22. Nxb5 Bxb5 23. Bxb5 Ra3 24. Bc4 d5 25. Bb3 Qb8 26. Rh4 h5 27. g4 Nxg4 28. Qxd5 Rf8 29. Qe4 Nf6 30. Qf3 Ra6 31. Kh1 Rd6 32. Rg1 Rd3 33. Rxh5+ Nxh5 34. Qxh5+ Kg8 35. Rxg7+ Kxg7 36. f6+ exf6 37. Bh6+ 1-0

[Event "Dallas Pinfork op1"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Jacobs, John N"]
[Black "Ardaman, Miles"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2290"]
[BlackElo "2365"]
[PlyCount "77"]
[EventDate "1996.03.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 Bg4 5. d5 Nb8 6. Be2 Bxf3 7. Bxf3 g6 8. 0-0 Bg7 9. Bf4 Nfd7 10. Qd2 h6 11. Rfe1 c6 12. Be3 Qc7 13. Be2 g5 14. a4 a5 15. Rad1 Ne5 16. dxc6 bxc6 17. Bd4 Nbd7 18. h4 Bf6 19. hxg5 hxg5 20. g3 g4 21. Kg2 Rb8 22. Rh1 Rg8 23. b3 e6 24. Be3 Ke7 25. Rh5 Rb4 26. Bg5 Rg6 27. Bh4 Qb8 28. Rh1 Qb6 29. Rd1 Qc5 30. Na2 Rxe4 31. Bd3 Rd4 32. Nc3 Bxh4 33. gxh4 d5 34. Ne2 Rf6 35. Nxd4 Qxd4 36. Qe2 Qf4 37. Qe3 Nxd3 38. Rxd3 Qd6 39. Qg5 0-1

[Event "Dallas Pinfork op2"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "5"]
[White "Jacobs, John N"]
[Black "Campbell, Matthew"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2290"]
[PlyCount "27"]
[EventDate "1996.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 c5 6. c4 Nc6 7. 0-0 d5 8. cxd5 Nxd5 9. Bxg7 Kxg7 10. Qc1 b6 11. d4 Ba6 12. dxc5 Re8 13. Rd1 Ncb4 14. a3 1-0

[Event "Dallas Pinfork op4"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Jacobs, John N"]
[Black "Carlin, Alfred Blake"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2290"]
[BlackElo "2235"]
[PlyCount "120"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 d6 6. d4 Nbd7 7. 0-0 e5 8. dxe5 Ng4 9. Qc1 Ngxe5 10. c4 Nxf3+ 11. Bxf3 Bxb2 12. Qxb2 Qf6 13. Nc3 Ne5 14. Bg2 c6 15. Qd2 Qe7 16. Rad1 Rd8 17. h3 f5 18. f4 Nf7 19. Rfe1 Qf6 20. e4 Be6 21. Re3 Re8 22. Rde1 Rad8 23. Kh2 Kg7 24. R1e2 Bd7 25. Bf3 Re7 26. exf5 Rxe3 27. Rxe3 gxf5 28. Ne2 Re8 29. Rxe8 Bxe8 30. Qd4 Qxd4 31. Nxd4 Kf6 32. Bh5 Bd7 33. g4 fxg4 34. hxg4 h6 35. Kg3 c5 36. Nc2 Nd8 37. Ne3 Be6 38. Kf3 Nc6 39. Ke4 Ne7 40. Be8 a6 41. a4 b6 42. Bh5 Bd7 43. Nd5+ Nxd5 44. Kxd5 Ke7 45. f5 b5 46. axb5 axb5 47. f6+ Kxf6 48. Kxd6 bxc4 49. bxc4 Ba4 50. Kxc5 Kg5 51. Kd6 Kf6 52. c5 Bb5 53. c6 Bxc6 54. Kxc6 Kg7 55. Kd5 Kf6 56. Ke4 Kg7 57. Kf5 Kh7 58. Kf6 Kg8 59. Kg6 Kh8 60. Kxh6 Kg8 1-0

[Event "Dallas Pinfork op3"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "7"]
[White "Jacobs, John N"]
[Black "Erdei, Andras"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2290"]
[BlackElo "2215"]
[PlyCount "61"]
[EventDate "1996.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Qc7 4. 0-0 g6 5. Re1 Bg7 6. c3 e5 7. d4 cxd4 8. cxd4 exd4 9. Bg5 Qa5 10. Na3 Nge7 11. Nc4 Qc7 12. Qd2 0-0 13. Bf4 Qd8 14. Nd6 a6 15. Bc4 b5 16. Bb3 Na5 17. Nxd4 Qb6 18. e5 Nxb3 19. Nxb3 Bb7 20. Rac1 Bc6 21. Bh6 Bxh6 22. Qxh6 f6 23. Nc5 Qd8 24. e6 Qc7 25. Red1 Bd5 26. Rc3 Qxd6 27. Rh3 Rf7 28. exf7+ Kxf7 29. Qxh7+ Ke8 30. Qh8+ Ng8 31. Qxg8+ 1-0

[Event "Dallas Pinfork op1"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Jacobs, John N"]
[Black "Hendrick, John Kristan"]
[Result "1/2-1/2"]
[ECO "C30"]
[WhiteElo "2290"]
[PlyCount "103"]
[EventDate "1996.03.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. d3 Nc6 4. Nc3 Nf6 5. f4 d6 6. Nf3 Ng4 7. Qe2 Bf2+ 8. Kf1 Nd4 9. Nxd4 Bxd4 10. f5 Qh4 11. g3 Qh3+ 12. Qg2 Qxg2+ 13. Kxg2 c6 14. Re1 a5 15. a4 h5 16. h3 Nf6 17. Ne2 Bb6 18. Bg5 Nd7 19. Ng1 f6 20. Bd2 Bxg1 21. Rxg1 Nb6 22. Bb3 d5 23. c3 c5 24. Be3 d4 25. cxd4 cxd4 26. Bd2 Bd7 27. Rgc1 Nc8 28. Bd5 Nd6 29. b4 Ke7 30. bxa5 Rhc8 31. Bb4 Bc6 32. Be6 Bd7 33. Bb3 Ra6 34. Rxc8 Bxc8 35. Rc1 Rc6 36. Rxc6 bxc6 37. Kf2 Ba6 38. Ke2 Kd7 39. Kd2 Nb7 40. Bf8 Nxa5 41. Bd1 Nb7 42. Bxh5 c5 43. Be2 Nd6 44. Bxg7 Ke7 45. Kc2 c4 46. dxc4 Nxe4 47. g4 Ng3 48. Bd3 e4 49. g5 fxg5 50. Bxd4 exd3+ 51. Kxd3 Nxf5 52. Bc5+ 1/2-1/2

[Event "Dallas Pinfork op3"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "4"]
[White "Jacobs, John N"]
[Black "Jaradat, Shinam"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2290"]
[BlackElo "2055"]
[PlyCount "63"]
[EventDate "1996.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. b3 e6 4. g3 Be7 5. Bg2 Nc6 6. 0-0 0-0 7. Bb2 Rb8 8. Nc3 a6 9. d4 d6 10. d5 Na7 11. e4 b5 12. e5 dxe5 13. Nxe5 bxc4 14. Nxc4 exd5 15. Nxd5 Nxd5 16. Qxd5 Be6 17. Qxd8 Rfxd8 18. Be5 Rb5 19. Rfd1 Rxd1+ 20. Rxd1 Nc8 21. Bc6 Bxc4 22. bxc4 Rb6 23. Bd5 Nd6 24. Bc3 Bf8 25. Kg2 g6 26. Re1 Nf5 27. Re8 Ng7 28. Ra8 Ne6 29. Be5 h6 30. a4 a5 31. Rxa5 Kh7 32. Ra7 1-0

[Event "Dallas Pinfork op4"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Jacobs, John N"]
[Black "Karklins, Andrew"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2290"]
[BlackElo "2335"]
[PlyCount "79"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d6 3. d4 Nbd7 4. Bb2 c6 5. Nbd2 e5 6. dxe5 dxe5 7. Nxe5 Nxe5 8. Bxe5 Bc5 9. e3 0-0 10. Be2 Qe7 11. Bxf6 Qxf6 12. 0-0 Bd6 13. Bd3 Qh6 14. g3 Bh3 15. Re1 Bb4 16. Qe2 Kh8 17. Red1 f5 18. Nf1 Rae8 19. c3 Bc5 20. Qc2 f4 21. exf4 Bg4 22. Re1 Bf3 23. h4 Qh5 24. Nh2 Bd5 25. c4 Bg8 26. Re4 Rxe4 27. Bxe4 Re8 28. Bf3 Qf7 29. Rd1 h5 30. Be4 Qe6 31. Bg6 Re7 32. Kg2 b5 33. Rd8 Bb6 34. Ra8 bxc4 35. bxc4 c5 36. Nf3 Qc6 37. Qf5 Re5 38. Rxg8+ Kxg8 39. Qf7+ Kh8 40. Qf8# 1-0

[Event "Dallas Pinfork op2"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "6"]
[White "Jacobs, John N"]
[Black "Odendahl, Steven M"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2290"]
[BlackElo "2425"]
[PlyCount "79"]
[EventDate "1996.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 0-0 5. Bg2 d6 6. d4 Bf5 7. 0-0 Nc6 8. c4 Qc8 9. Re1 Bh3 10. Bh1 Ne4 11. Nbd2 f5 12. Nxe4 fxe4 13. Ng5 e3 14. f4 Bf5 15. a3 h6 16. Nf3 Be4 17. b4 e6 18. Nh4 Bxh1 19. Kxh1 g5 20. fxg5 hxg5 21. Nf3 g4 22. Nh4 e5 23. dxe5 Qe6 24. Qd3 Nxe5 25. Qxe3 Qxc4 26. Bxe5 Qd5+ 27. Kg1 Qxe5 28. Qxe5 Bxe5 29. Rac1 Bb2 30. Rxc7 Bxa3 31. Rc4 a5 32. Rxg4+ Kh7 33. bxa5 Bc5+ 34. Kg2 Rxa5 35. Rd1 Ra2 36. Rd5 Rxe2+ 37. Kh3 Rf6 38. Rdg5 Bg1 39. Rg7+ Kh6 40. Nf5+ 1-0

[Event "Dallas Pinfork op2"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "2"]
[White "Jacobs, John N"]
[Black "Pickard, Sid B"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2290"]
[PlyCount "73"]
[EventDate "1996.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nc6 2. e4 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bxh6 gxh6 7. e6 fxe6 8. Bb5 Bg7 9. Qe2 a6 10. Bxc6+ bxc6 11. 0-0 0-0 12. c3 Rb8 13. Na3 Kh8 14. Nc4 Qe8 15. Rfe1 Rg8 16. Kh1 Rb5 17. Rad1 Rh5 18. Ncd2 e5 19. Nf1 Bxh3 20. gxh3 Rxh3+ 21. N3h2 exd4 22. Qg4 Rh5 23. cxd4 Rg5 24. Qe4 d5 25. Qe2 Bxd4 26. Ng3 Bxf2 27. Qxf2 Rxg3 28. Qd4+ R8g7 29. Rg1 Qg6 30. Rgf1 Kg8 31. Qb4 Qe8 32. Qf4 e5 33. Qxh6 R7g6 34. Qh4 e4 35. Rc1 Qe5 36. Qd8+ Kg7 37. Qf8# 1-0

[Event "Dallas Pinfork op4"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Jacobs, John N"]
[Black "Root, Douglas"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "2290"]
[BlackElo "2470"]
[PlyCount "68"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 Nb6 8. Qd2 Bd7 9. Nf3 c5 10. dxc5 Qxc5 11. Bd3 Nc6 12. Nb5 0-0 13. Bxh7+ Kxh7 14. Ng5+ Kg8 15. Qd3 Rfc8 16. Qh7+ Kf8 17. Qh8+ Ke7 18. Qh4 Qxb5 19. Ne4+ f6 20. Nxf6 Be8 21. 0-0-0 gxf6 22. Qxf6+ Kd7 23. f5 Kc7 24. Qxe6 Rd8 25. f6 Nc4 26. b3 N4xe5 27. Qh3 Qb4 28. Rhe1 Qf4+ 29. Kb1 Qxf6 30. Rf1 Qg7 31. Rf4 Rac8 32. Rh4 Kb8 33. Qc3 Qxg2 34. Re1 Nf3 0-1

[Event "Dallas Pinfork op3"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "1"]
[White "Jacobs, John N"]
[Black "Scott, William Monte"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2290"]
[PlyCount "61"]
[EventDate "1996.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. d4 Nbd7 7. b3 c6 8. Nc3 b6 9. Bb2 Bb7 10. Ne5 Rc8 11. e4 c5 12. Nxd7 Qxd7 13. e5 Ne8 14. cxd5 exd5 15. dxc5 Rxc5 16. b4 Rc7 17. Nxd5 Bxd5 18. Bxd5 Bxb4 19. Qb3 Qe7 20. Rad1 Kh8 21. Rd3 f6 22. e6 Bc5 23. Rfd1 Nd6 24. Ba3 Re8 25. Bf3 Nb7 26. Rd7 Bxa3 27. Rxe7 Bxe7 28. Qa4 Rec8 29. Bxb7 Rxb7 30. Rd7 Rcc7 31. Rd8+ 1-0

[Event "Dallas Pinfork op3"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "5"]
[White "Ketchum, Richard"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B23"]
[BlackElo "2290"]
[PlyCount "82"]
[EventDate "1996.07.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nge2 Nc6 4. g3 d5 5. exd5 exd5 6. Bg2 d4 7. Nd5 Bd6 8. 0-0 Nge7 9. Nef4 0-0 10. d3 Bf5 11. c4 dxc3 12. bxc3 Qd7 13. d4 cxd4 14. cxd4 Nxd5 15. Nxd5 Bh3 16. Bxh3 Qxh3 17. Be3 Qf5 18. Qb3 Qf3 19. Nc3 Ne7 20. Nb5 Rfd8 21. Rfc1 Nd5 22. Nxd6 Rxd6 23. Qxb7 Rad8 24. Rc8 Qg4 25. Rac1 h5 26. Ra8 R6d7 27. Rxd8+ Rxd8 28. Qb3 h4 29. Qd1 Nxe3 30. fxe3 Qg5 31. Qf3 hxg3 32. Qxg3 Qd5 33. Qg2 Qe6 34. Qf2 Rd5 35. Rc5 Rd6 36. Re5 Qd7 37. Rg5 Rb6 38. Qg3 g6 39. Rc5 Rb1+ 40. Kf2 Rb2+ 41. Ke1 Qb7 0-1

[Event "Dallas Pinfork op4"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Kudrin, Sergey"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B68"]
[WhiteElo "2535"]
[BlackElo "2290"]
[PlyCount "120"]
[EventDate "1996.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. Be2 Bd7 9. f4 Qc7 10. 0-0-0 Be7 11. Nb3 0-0-0 12. Bxf6 gxf6 13. Bh5 Be8 14. Qe3 Kb8 15. Kb1 Rc8 16. Qh3 Na5 17. Nxa5 Qxa5 18. Ne2 Qa4 19. Nc3 Qa5 20. Rd3 Qc5 21. Rhd1 Bf8 22. f5 Qe5 23. a3 Rg8 24. g3 Rg7 25. Qf1 Bc6 26. Bf3 Rg5 27. Qh3 Rg7 28. Qf1 Be7 29. R3d2 Bf8 30. Re1 Be7 31. Qd3 Bf8 32. Rdd1 Rg5 33. Qf1 Rg7 34. Qh3 Bd7 35. Ne2 Ba4 36. Nd4 Rc4 37. Nb3 Be7 38. Qf1 Bxb3 39. cxb3 Rc7 40. Qd3 Rg8 41. Bh5 Rg5 42. Bxf7 exf5 43. exf5 Qxf5 44. Re4 Qf2 45. b4 Re5 46. Rxe5 dxe5 47. Qxh7 f5 48. Qh8+ Ka7 49. Qxe5 Bf6 50. Qxf6 Qc2+ 51. Ka2 Qxd1 52. Bb3 Qd3 53. Qg5 Qe4 54. Qd2 Re7 55. Qf2+ Ka8 56. h4 Rg7 57. Qc5 Re7 58. h5 Rh7 59. Bd5 Qe7 60. Qc8+ Ka7 1-0

[Event "Dallas Pinfork op2"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "1"]
[White "Palatnik, Semon"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2480"]
[BlackElo "2290"]
[PlyCount "79"]
[EventDate "1996.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. Bg2 Nf6 7. 0-0 Be7 8. Nc3 0-0 9. dxc5 d4 10. Na4 Bf5 11. b3 Be4 12. e3 dxe3 13. Bxe3 Nd5 14. Bd2 Bf6 15. Rc1 Bd3 16. Re1 Ndb4 17. a3 Nd5 18. Bg5 Bxg5 19. Nxg5 Qxg5 20. Qxd3 Rad8 21. h4 Qh5 22. Qf3 Qg6 23. Rcd1 Nc7 24. Qe4 Qf6 25. b4 g6 26. Qf3 Qg7 27. Qc3 Nd4 28. Qc4 Qf6 29. Bxb7 Nf3+ 30. Bxf3 Qxf3 31. Nc3 Ne6 32. Nd5 Qxa3 33. c6 Kg7 34. c7 Rc8 35. Rc1 Rfe8 36. Re3 Qa4 37. Qc3+ Kh6 38. Qf6 Qd7 39. Re5 Ng7 40. Qg5# 1-0

[Event "Dallas Pinfork op1"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "?"]
[White "Trammell, George"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B57"]
[BlackElo "2290"]
[PlyCount "56"]
[EventDate "1996.03.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nb3 e6 8. Be3 Qc7 9. Qe2 a6 10. a4 b6 11. 0-0 Be7 12. f4 0-0 13. h3 Bb7 14. f5 Ne5 15. Bd3 d5 16. Bf4 dxe4 17. Nxe4 exf5 18. Ng3 Bd6 19. Nxf5 Nf3+ 20. Rxf3 Bxf4 21. Rff1 g6 22. Qf2 Nh5 23. Qh4 Rae8 24. Rae1 Bh2+ 25. Kh1 Ng3+ 26. Nxg3 Bxg3 27. Qb4 Bxe1 28. Rxe1 a5 1-0

[Event "Dallas Pinfork op2"]
[Site "Dallas"]
[Date "1996.??.??"]
[Round "4"]
[White "Weinberg, Aaron"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "A48"]
[BlackElo "2290"]
[PlyCount "80"]
[EventDate "1996.04.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Be2 Bg7 5. 0-0 b6 6. b3 0-0 7. Nbd2 Bb7 8. a4 Nc6 9. Ba3 cxd4 10. exd4 Nd5 11. Bb2 Nf4 12. Nc4 d5 13. Nce5 Nb4 14. Bb5 a6 15. Be2 Nxe2+ 16. Qxe2 Rc8 17. c3 Nc6 18. Rfe1 e6 19. Qe3 Na5 20. Nd2 Re8 21. Qf4 Qc7 22. Qh4 f6 23. Nef3 e5 24. dxe5 fxe5 25. Rac1 h6 26. Ba3 Qf7 27. Qg4 e4 28. Nd4 Kh7 29. Bd6 Nc6 30. Ne2 Ne5 31. Bxe5 Bxe5 32. b4 Rc7 33. a5 Bc8 34. Qh4 g5 35. axb6 Rb7 36. Qg3 Bxg3 37. hxg3 Rxb6 38. Nd4 Rf6 39. f3 Qc7 40. fxe4 Qxg3 0-1

[Event "US Open-85"]
[Site "Fort Worth"]
[Date "1984.??.??"]
[Round "7"]
[White "Henley, Ron W"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2495"]
[PlyCount "105"]
[EventDate "1984.08.04"]
[EventType "swiss"]
[EventRounds "12"]
[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. Nf3 b6 4. Nc3 Bb7 5. a3 d5 6. cxd5 exd5 7. g3 a6 8. Bf4 Bd6 9. Bxd6 cxd6 10. Bg2 0-0 11. 0-0 Nc6 12. b4 b5 13. Qb3 Ne7 14. Nd2 Qb6 15. e3 Bc6 16. Rac1 a5 17. Rc2 a4 18. Qa2 Qb7 19. Rfc1 Rac8 20. Bf1 g6 21. Qb2 Rce8 22. Bd3 Ne4 23. Ne2 Rc8 24. Nf4 Nxd2 25. Rxd2 Bd7 26. Rdc2 Rxc2 27. Rxc2 Rc8 28. Ne2 Bc6 29. Nc3 Rb8 30. Rc1 Qd7 31. Qe2 Kg7 32. Kg2 f5 33. h4 Ng8 34. h5 Nf6 35. hxg6 hxg6 36. Rh1 Ne8 37. Qf3 Qe7 38. Qf4 Nf6 39. Qg5 Ng8 40. Qf4 Qf6 41. Qf3 Ne7 42. Qe2 Qe6 43. Nxb5 Bxb5 44. Bxb5 Rc8 45. Bxa4 Ra8 46. Bc2 Rxa3 47. Qb5 Ra2 48. Qe8 Qf6 49. Bb3 Rb2 50. Qh8+ Kf7 51. Bxd5+ Nxd5 52. Rh7+ Ke6 53. Qc8# 1-0

[Event "corr"]
[Site "corr"]
[Date "1977.??.??"]
[Round "?"]
[White "Guillot, Michael F"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "A03"]
[PlyCount "46"]
[EventDate "1977.??.??"]
[EventType "tourn (corr)"]
[SourceTitle "Corr 2000"]
[Source "ChessBase"]
[SourceDate "2000.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2000.04.19"]
[SourceQuality "1"]

1. f4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. d3 Nf6 6. 0-0 0-0 7. c3 b6 8. Qc2 Nc6 9. a4 Bb7 10. Na3 Rc8 11. Bd2 Re8 12. Rae1 h6 13. e4 Nb4 14. cxb4 cxb4 15. Qb3 bxa3 16. e5 Ne4 17. Bb4 Nc5 18. Qxa3 e6 19. Rc1 Bf8 20. d4 a5 21. Bxc5 bxc5 22. Qe3 Qb6 23. Kh1 cxd4 0-1

[Event "WchT Students 20th final A"]
[Site "Teeside"]
[Date "1974.07.29"]
[Round "8"]
[White "Jacobs, John N"]
[Black "Eales, Richard G"]
[Result "1-0"]
[ECO "B03"]
[PlyCount "59"]
[EventDate "1974.07.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "England"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "ENG"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Be7 10. Be2 0-0 11. 0-0 f6 12. exf6 Bxf6 13. Qd2 Qe7 14. Rad1 Rad8 15. Qc1 Rfe8 16. Kh1 h6 17. h3 Kh8 18. Bg1 Bh7 19. Rfe1 e5 20. Nd5 Nxd5 21. cxd5 Rxd5 22. Bc4 Rdd8 23. dxe5 Bh4 24. Rxd8 Rxd8 25. Nxh4 Qxh4 26. b3 Re8 27. e6 Bf5 28. Qd2 Qf6 29. Qf4 Na5 30. Re5 1-0

[Event "WchT Students 20th final A"]
[Site "Teeside"]
[Date "1974.07.27"]
[Round "6"]
[White "Jacobs, John N"]
[Black "Ristoja, Thomas W"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "82"]
[EventDate "1974.07.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "Finland"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "FIN"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 Nc7 6. Nf3 Nc6 7. Qe4 Ne6 8. Bc4 Qc7 9. 0-0 b6 10. Na3 Bb7 11. Re1 g6 12. Bd5 Bg7 13. Nb5 Qc8 14. a4 0-0 15. Qh4 a6 16. Na3 Qc7 17. Bh6 Bxh6 18. Qxh6 Ncd4 19. Bxb7 Nf5 20. Qd2 Qxb7 21. Nc4 Rac8 22. Ne3 Nxe3 23. Qxe3 Rc4 24. Nd2 Rc7 25. Ne4 Kg7 26. b4 Rfc8 27. Red1 Rc4 28. f3 Qc7 29. Rd5 Qc6 30. Rad1 Rc7 31. R1d3 Qxa4 32. g4 h6 33. f4 g5 34. fxg5 Nxg5 35. R5d4 Rxd4 36. Qxd4 Ne6 37. Qxb6 Qc2 38. Re3 Rc4 39. Nf2 Qc1+ 40. Kg2 Nf4+ 41. Kf3 Nd5 0-1

[Event "WchT Students 20th final A"]
[Site "Teeside"]
[Date "1974.07.26"]
[Round "5"]
[White "Poulsen, Allan"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B44"]
[PlyCount "54"]
[EventDate "1974.07.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "Denmark"]
[BlackTeam "United States"]
[WhiteTeamCountry "DEN"]
[BlackTeamCountry "USA"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Be3 d5 7. Nd2 Bd6 8. Nxc6 bxc6 9. c4 0-0 10. 0-0 h6 11. f4 d4 12. Bxd4 Bxf4 13. Nf3 Ng4 14. Qe2 Nxh2 15. Bc5 Nxf1 16. Kxf1 e5 17. Bxf8 Qxf8 18. Qf2 Qe7 19. c5 h5 20. g3 Bh6 21. Kg1 Bg4 22. b4 a5 23. Bc4 axb4 24. Kh2 Rd8 25. Rf1 Be6 26. Bxe6 Qxe6 27. Kh1 Rd3 0-1

[Event "WchT Students 20th final A"]
[Site "Teeside"]
[Date "1974.07.24"]
[Round "3"]
[White "Riedel, Wolfgang"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "D34"]
[PlyCount "62"]
[EventDate "1974.07.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "German Fed Rep"]
[BlackTeam "United States"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "USA"]

1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 d5 5. cxd5 exd5 6. d4 Nc6 7. Bg2 Be7 8. 0-0 0-0 9. Bg5 Be6 10. Rc1 Ne4 11. Bxe7 Qxe7 12. dxc5 Rfd8 13. Nd4 Nxc5 14. Na4 Nxd4 15. Nxc5 Nc6 16. Qa4 Rac8 17. Rfd1 a6 18. Qh4 f6 19. e4 g5 20. Qh6 Bg4 21. Rxd5 Rxd5 22. exd5 Ne5 23. d6 Qxd6 24. Be4 Rc7 25. Bc2 b6 26. Ne4 Rxc2 27. Nxf6+ Qxf6 28. Qxf6 Rxc1+ 29. Kg2 Bf3+ 30. Kh3 g4+ 31. Kh4 Nf7 0-1

[Event "WchT Students 20th final A"]
[Site "Teeside"]
[Date "1974.07.23"]
[Round "2"]
[White "Jacobs, John N"]
[Black "Palatnik, Semon"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "88"]
[EventDate "1974.07.22"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "Soviet Union"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "URS"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 Nc7 6. Nf3 Nc6 7. Qe4 g6 8. Bc4 Bg7 9. 0-0 Ne6 10. Na3 Qc7 11. Re1 a6 12. Bd5 b5 13. Be3 Bb7 14. Rad1 Rb8 15. Bc1 Na5 16. h4 h5 17. Qe2 0-0 18. Nc2 Nc4 19. Nb4 a5 20. Bxb7 axb4 21. Bd5 bxc3 22. bxc3 Rfc8 23. Rd3 Nb6 24. Be3 Na4 25. Bxe6 dxe6 26. Bd4 Bh6 27. Rb1 Qa5 28. Rb3 Rb7 29. g3 Rbc7 30. Kg2 Rc4 31. Nd2 Nc5 32. Bxc5 R4xc5 33. Nf3 Ra8 34. Qb2 Kg7 35. Rd7 Qxa2 36. Rxb5 Rxb5 37. Qxb5 Be3 38. Qf1 Rb8 39. Rd1 Rb2 40. Kh3 Rxf2 41. Qh1 Qc2 42. Nd4 Bxd4 43. Rxd4 Qf5+ 44. g4 hxg4+ 0-1

[Event "WchT Students 20th Group5"]
[Site "Teeside"]
[Date "1974.07.20"]
[Round "5"]
[White "Jacobs, John N"]
[Black "Holloway, Nigel John"]
[Result "1/2-1/2"]
[ECO "B04"]
[PlyCount "41"]
[EventDate "1974.07.15"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "England"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "ENG"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nf3 g6 7. Be2 Bg7 8. 0-0 0-0 9. Nc3 Nc6 10. h3 Bf5 11. Be3 d5 12. c5 Nc4 13. Bxc4 dxc4 14. Qa4 Bd3 15. Rfd1 Qa5 16. Qxa5 Nxa5 17. Ne1 e5 18. dxe5 Bxe5 19. Nxd3 cxd3 20. Rxd3 Nc4 21. Na4 1/2-1/2

[Event "WchT Students 20th Group5"]
[Site "Teeside"]
[Date "1974.07.18"]
[Round "3"]
[White "Jacobs, John N"]
[Black "Grinza, Andrea"]
[Result "1-0"]
[ECO "B14"]
[PlyCount "89"]
[EventDate "1974.07.15"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "United States"]
[BlackTeam "Italy"]
[WhiteTeamCountry "USA"]
[BlackTeamCountry "ITA"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 7. Qb3 0-0 8. Be2 Nbd7 9. Bf3 Nb6 10. Nge2 Bf5 11. 0-0 Qd7 12. Rd1 Rfd8 13. d6 exd6 14. d5 Ng4 15. Nd4 Re8 16. Bf4 Ne5 17. Be2 Qe7 18. Nxf5 gxf5 19. Be3 Nbd7 20. Nb5 f4 21. Bxf4 Ng6 22. Be3 Nde5 23. Rac1 f5 24. Nc7 f4 25. Nxe8 Rxe8 26. Bxa7 Nh4 27. Qh3 Bf8 28. Qe6+ Qxe6 29. dxe6 Rxe6 30. Bc4 Nxc4 31. Rxc4 Rg6 32. g3 Bh6 33. Kh1 Nf5 34. Rc8+ Kf7 35. Rc7+ Ke6 36. Rxb7 fxg3 37. hxg3 Bg7 38. a4 h5 39. Re1+ Be5 40. Rh7 Kf6 41. Rxh5 Bxb2 42. Bb6 Rg8 43. Kg2 Bc3 44. Rd1 Ke6 45. Rxf5 1-0

[Event "WchT Students 20th Group5"]
[Site "Teeside"]
[Date "1974.07.17"]
[Round "2"]
[White "Valdez, A."]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "B88"]
[PlyCount "103"]
[EventDate "1974.07.15"]
[EventType "team-tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]
[WhiteTeam "Ecuador"]
[BlackTeam "United States"]
[WhiteTeamCountry "ECU"]
[BlackTeamCountry "USA"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Bc4 Nf6 7. 0-0 Be7 8. Bb3 0-0 9. f4 a6 10. Kh1 Qc7 11. f5 Nxd4 12. Qxd4 b5 13. Be3 Bd7 14. Rad1 Rab8 15. a3 a5 16. Bg5 b4 17. axb4 Rxb4 18. Bxf6 Rxd4 19. Bxd4 Rb8 20. Rf3 a4 21. Nxa4 e5 22. Bf2 Bxa4 23. Bxa4 Rxb2 24. Bb3 Rxc2 25. Bxc2 Qxc2 26. Re1 Bg5 27. h4 Bd2 28. Ra1 h6 29. Be3 Bb4 30. f6 Qxe4 31. fxg7 Kxg7 32. Ra7 Qxh4+ 33. Rh3 Qe1+ 34. Kh2 Bd2 35. Rg3+ Qxg3+ 36. Kxg3 Bxe3 37. Rd7 Bc5 38. Kf3 Kg6 39. g4 f5 40. gxf5+ Kxf5 41. Rf7+ Kg6 42. Re7 h5 43. Re8 Kf5 44. Rf8+ Ke6 45. Rh8 Kd5 46. Rxh5 Kd4 47. Rh4+ Kd3 48. Re4 Bd4 49. Re1 Bc3 50. Re3+ Kd2 51. Re2+ Kd1 52. Ke3 1/2-1/2

[Event "Lone Pine op Louis D. Statham Masters"]
[Site "Lone Pine"]
[Date "1974.03.25"]
[Round "2"]
[White "Jacobs, John N"]
[Black "Karklins, Andrew"]
[Result "0-1"]
[ECO "C68"]
[PlyCount "34"]
[EventDate "1974.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Qd6 6. c3 Bg4 7. d4 exd4 8. cxd4 0-0-0 9. Be3 f5 10. e5 Qg6 11. Nc3 Ne7 12. Qe2 h6 13. Na4 f4 14. Bc1 Rxd4 15. b3 Rd3 16. Kh1 Nf5 17. Bxf4 Rxf3 0-1

[Event "Lone Pine op Louis D. Statham Masters"]
[Site "Lone Pine"]
[Date "1974.03.24"]
[Round "1"]
[White "Christiansen, Larry Mark"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "D30"]
[PlyCount "54"]
[EventDate "1974.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. c4 e6 4. Bg2 Be7 5. b3 c5 6. cxd5 exd5 7. d4 Nc6 8. 0-0 0-0 9. Bb2 Ne4 10. dxc5 Bxc5 11. Nc3 Nxc3 12. Bxc3 d4 13. Bb2 Bg4 14. Rc1 Bb6 15. h3 Be6 16. Qd2 Qd7 17. Kh2 Rfe8 18. Rfd1 Rad8 19. Ba3 Bd5 20. Qb2 Qf5 21. Kg1 Bxf3 22. Bxf3 d3 23. Kg2 Rxe2 24. Bxe2 Qxf2+ 25. Kh1 dxe2 26. Rxd8+ Nxd8 27. Qe5 Qf1+ 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.22"]
[Round "8"]
[White "Shean, Robert"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B81"]
[PlyCount "93"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. g5 hxg5 8. Bxg5 Nc6 9. Qd2 Qb6 10. Nb3 a6 11. h4 Bd7 12. Be2 0-0-0 13. 0-0-0 Kb8 14. Kb1 Rc8 15. f4 Be8 16. f5 Ne5 17. Be3 Qc7 18. Bg1 Nfd7 19. Rh3 Nc6 20. Nd4 Nxd4 21. Qxd4 Qc5 22. Qa4 Qc7 23. Qb3 Nc5 24. Bxc5 dxc5 25. Bc4 exf5 26. exf5 Ka7 27. a4 Rh6 28. Nd5 Qd8 29. f6 Rxf6 30. Rhd3 Rd6 31. h5 Qa5 32. Nf4 Rb6 33. Qa2 Rb4 34. b3 Rb6 35. Qb2 f6 36. Ne6 Bxh5 37. Nxf8 Rxf8 38. R1d2 Bg4 39. Rg2 Qe1+ 40. Ka2 Bf5 41. Rdg3 g5 42. Rg1 Qd2 43. R1g2 Qd4 44. c3 Qe5 45. Qd2 Rd6 46. Qe3 Qxe3 47. Rxe3 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.21"]
[Round "7"]
[White "Jacobs, John N"]
[Black "Biyiasas, Peter"]
[Result "1/2-1/2"]
[ECO "C68"]
[PlyCount "84"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Qd6 6. c3 c5 7. d4 cxd4 8. cxd4 exd4 9. e5 Qd8 10. Nxd4 c5 11. Nb3 Qxd1 12. Rxd1 c4 13. Na5 b5 14. a4 f6 15. Nc6 Bg4 16. Rd4 Be6 17. axb5 Bc5 18. Rd1 Ne7 19. Nxe7 Kxe7 20. exf6+ gxf6 21. bxa6 Rhg8 22. Be3 Bxe3 23. fxe3 Rgb8 24. Rd2 Rb6 25. a7 Rb7 26. Nc3 Rbxa7 27. Rxa7+ Rxa7 28. Kf2 f5 29. Kg3 Kf6 30. Kf4 Rb7 31. Ne2 Rg7 32. Nc3 Rg4+ 33. Kf3 Ke5 34. Rd8 Rg7 35. Rd2 Bc8 36. Rd5+ Ke6 37. Rd4 Bb7+ 38. e4 fxe4+ 39. Nxe4 Bd5 40. g3 Rb7 41. Ke3 Rxb2 42. Nc3 Ba8 1/2-1/2

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.20"]
[Round "5"]
[White "Jacobs, John N"]
[Black "Grefe, John Alan"]
[Result "1/2-1/2"]
[ECO "B21"]
[PlyCount "60"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 a6 7. 0-0 Be7 8. Qe2 b5 9. Bb3 Nf6 10. Rd1 Qb6 11. e5 dxe5 12. Nxe5 Nbd7 13. Be3 Qb7 14. Bf4 Nxe5 15. Bxe5 0-0 16. Bc2 Qb6 17. Bd4 Qb7 18. Bxf6 Bxf6 19. Be4 Qa7 20. Bxa8 Qxa8 21. f3 Bb7 22. Ne4 Qa7+ 23. Kh1 Bd4 24. Rac1 Bd5 25. b3 Qb6 26. Qd3 Be5 27. Nd2 Qf2 28. Rc2 Qh4 29. Nf1 h5 30. Qe2 Qg5 1/2-1/2

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.20"]
[Round "6"]
[White "Kaplan, Julio P"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "D34"]
[PlyCount "104"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 c5 6. cxd5 exd5 7. d4 Nc6 8. Nc3 0-0 9. Be3 c4 10. Ne5 Qa5 11. Bd2 Bb4 12. a3 Bxc3 13. Bxc3 Qc7 14. f3 Rd8 15. e3 Rb8 16. g4 Ne8 17. Qe1 Ne7 18. g5 Be6 19. Rc1 Rdc8 20. Bb4 Nc6 21. Nxc6 Qxc6 22. Qg3 Qd7 23. Rcd1 b6 24. e4 a5 25. Bc3 Qc7 26. Qxc7 Nxc7 27. Be1 Rd8 28. Bg3 Rb7 29. Rfe1 Rd7 30. Kf2 Rb8 31. exd5 Bxd5 32. Bh3 Be6 33. Bxe6 fxe6 34. Bxc7 Rxc7 35. Rxe6 c3 36. bxc3 Rxc3 37. Re3 Rc2+ 38. Kg3 Rd8 39. Rb3 Rd6 40. h4 Rc4 41. d5 Kf7 42. Re3 b5 43. Rdd3 b4 44. axb4 axb4 45. Re4 Rc3 46. Rdd4 b3 47. Rf4+ Kg6 48. Kg4 h5+ 49. gxh6 Kxh6 50. Rf5 Rb6 51. Rh5+ Kg6 52. Rg5+ Kh7 1/2-1/2

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.19"]
[Round "4"]
[White "Barnett, David"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "E01"]
[PlyCount "76"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e6 5. g3 d5 6. Bg2 e5 7. Nf3 d4 8. 0-0 Nc6 9. e3 Be7 10. exd4 exd4 11. a3 a5 12. b3 0-0 13. Bb2 Bc5 14. Nbd2 Bf5 15. Nh4 Bg4 16. Bf3 Bh3 17. Bg2 Qd7 18. Re1 Rae8 19. Ne4 Nxe4 20. Bxe4 g6 21. Bc1 Re6 22. Ng2 Rfe8 23. Bf3 Ne5 24. Bd5 Qxd5 25. cxd5 Nf3+ 26. Kh1 Rxe1+ 27. Nxe1 Rxe1+ 28. Qxe1 Nxe1 29. Bd2 Nd3 30. Kg1 b6 31. Bh6 Bf8 32. Bg5 Kg7 33. Bd8 Bc5 34. Ra2 Ne5 35. Bc7 Nf3+ 36. Kh1 d3 37. Bf4 g5 38. Bc1 Bd4 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.19"]
[Round "3"]
[White "Jacobs, John N"]
[Black "Stetson, Robert R"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "101"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 0-0 11. 0-0 Bg4 12. f3 Be6 13. Bg5 Qb6+ 14. Kh1 Nd7 15. f4 f5 16. Qf3 Qc5 17. Rfe1 Rae8 18. Nb5 Nd4 19. Qf2 Nxb5 20. Qxc5 Nxc5 21. Bxb5 Bd7 22. Bxd7 Nxd7 23. Be7 Rf7 24. Bd6 Rxe1+ 25. Rxe1 Nf6 26. Kg1 Rd7 27. Be5 Kf7 28. Rd1 Ng4 29. Bd4 b6 30. Re1 Nf6 31. a4 Ne4 32. Rd1 Nf6 33. Kf1 Ne4 34. a5 Rc7 35. axb6 axb6 36. c3 b5 37. Be5 Rd7 38. Ke2 g6 39. Ra1 Rb7 40. Ra5 Nc5 41. Bd6 Ne4 42. Be5 Nc5 43. Bd6 Ne4 44. Bb4 Ke6 45. Ra6+ Kd7 46. Ke3 Kc7 47. Kd4 Nd2 48. Kxd5 Nc4 49. Ke6 Kd8 50. b3 Nd2 51. Ba5+ 1-0

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.18"]
[Round "2"]
[White "Hartwell, TC."]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "A46"]
[PlyCount "20"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. dxc5 Na6 4. g3 Nxc5 5. Bg2 g6 6. b4 Nce4 7. Bb2 Bg7 8. Nbd2 Nxf2 9. Kxf2 Ng4+ 10. Kf1 Ne3+ 0-1

[Event "Las Vegas National op"]
[Site "Las Vegas"]
[Date "1974.03.18"]
[Round "1"]
[White "Jacobs, John N"]
[Black "Rukavina, Josip"]
[Result "1-0"]
[ECO "B04"]
[PlyCount "65"]
[EventDate "1974.03.??"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. h3 Bg7 8. Nf3 0-0 9. Be2 Nc6 10. 0-0 Bf5 11. Be3 d5 12. c5 Nc4 13. Bxc4 dxc4 14. Qa4 Bd3 15. Rfd1 Nxd4 16. Nxd4 Bxd4 17. Rxd3 cxd3 18. Qxd4 Qxd4 19. Bxd4 Rad8 20. Be3 Kg7 21. Kf1 Rd7 22. Ke1 e5 23. Kd2 f5 24. f3 h6 25. Bg1 Rc8 26. Rc1 g5 27. Nb5 Rc6 28. Rc3 e4 29. fxe4 fxe4 30. Nd6 Ra6 31. a3 b6 32. c6 Rc7 33. Ne8+ 1-0

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.05.05"]
[Round "7"]
[White "Jacobs, John N"]
[Black "Cunningham, Walter"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "132"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Bc4 Bg4 5. f3 Bf5 6. Nc3 Nbd7 7. Nge2 Nb6 8. d3 Nfxd5 9. Nxd5 Nxd5 10. Ng3 g6 11. 0-0 Qd6 12. Ne4 Qb6+ 13. Kh1 0-0-0 14. a4 Bg7 15. a5 Qc6 16. Bb3 Qe8 17. Qe2 h6 18. Qf2 Kb8 19. Qc5 e6 20. c4 Bf8 21. Qf2 Nb4 22. d4 Nd3 23. Qe3 Nxc1 24. Rfxc1 Bg7 25. Rd1 Bxe4 26. fxe4 Qd7 27. e5 f6 28. Ba4 Qe7 29. a6 fxe5 30. Qe4 c6 31. dxe5 Rxd1+ 32. Rxd1 Rd8 33. Rf1 Rf8 34. Ra1 Qf7 35. h3 Qf4 36. Qxf4 Rxf4 37. axb7 Kxb7 38. Bc2 g5 39. Bd3 Rd4 40. Rd1 Bxe5 41. b3 Kb6 42. Kg1 Ka5 43. Kf2 Rf4+ 44. Ke2 Bd4 45. Rf1 Rxf1 46. Kxf1 Kb4 47. Bc2 Kc3 48. Bd1 Kd2 49. Bg4 c5 50. Bxe6 Kc2 51. Ke2 Kxb3 52. Kd2 a5 53. Bg4 a4 54. Bd1+ Kb4 55. Kc1 a3 56. Kb1 Kxc4 57. Ka2 Kb4 58. Bg4 c4 59. Be2 Be5 60. Bf1 h5 61. Be2 h4 62. Bf1 Bb2 63. Be2 Kc3 64. Kb1 Kd4 65. Bg4 Kd3 66. Bf5+ Kd2 0-1

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.05.04"]
[Round "6"]
[White "Commons, Kim S"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "A75"]
[PlyCount "110"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Bf4 a6 8. a4 Bg7 9. Nf3 Bg4 10. Be2 0-0 11. h3 Bxf3 12. Bxf3 Qc7 13. 0-0 Nbd7 14. Rc1 Rfe8 15. Re1 Rab8 16. b4 c4 17. Qc2 Rbc8 18. Be2 Ne5 19. Be3 Nfd7 20. Qb1 Qd8 21. Red1 Qh4 22. Bf1 Rf8 23. g3 Qe7 24. f4 Nd3 25. Bxd3 cxd3 26. Qxd3 Bxc3 27. Rxc3 Rxc3 28. Qxc3 Qxe4 29. Qd4 Qf3 30. Bf2 Rc8 31. Qd3 Qh5 32. Kg2 Qf5 33. Qxf5 gxf5 34. g4 fxg4 35. hxg4 Rc4 36. Rd4 Rc2 37. Kf3 Nb6 38. a5 Nc4 39. Bh4 Kg7 40. Ke4 Rc1 41. Bd8 Kg6 42. Kd3 Na3 43. Re4 Rd1+ 44. Ke2 Rxd5 45. Re8 f5 46. g5 Nc2 47. Re6+ Kf7 48. Re7+ Kg6 49. Rxb7 Rb5 50. Rd7 Nxb4 51. Rxd6+ Kf7 52. Rh6 Kg8 53. Rb6 Kf7 54. Rh6 Kg8 55. Rb6 Kf7 1/2-1/2

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.05.03"]
[Round "5"]
[White "Jacobs, John N"]
[Black "Pavlovich, Alexsander B"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "40"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 Nb6 6. Bf4 Nc6 7. Qe4 g6 8. a4 a5 9. Nf3 Bg7 10. Bb5 0-0 11. 0-0 d5 12. Qe3 d4 13. cxd4 Nb4 14. Nc3 Bg4 15. Qe4 N6d5 16. Bg5 Bf5 17. Qe2 Nc7 18. Bc4 Ne6 19. Be3 Rc8 20. Rfd1 Nc7 1/2-1/2

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.05.02"]
[Round "4"]
[White "Weinstein, Norman"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B46"]
[PlyCount "71"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Bf4 d6 7. Bg3 Be7 8. Qd2 Nf6 9. 0-0-0 Nxd4 10. Qxd4 e5 11. Qd2 Be6 12. Bh4 Rc8 13. Bxf6 Bxf6 14. Kb1 Rc6 15. Nd5 Bg5 16. Qd3 0-0 17. g3 Rc5 18. h4 Bh6 19. Bh3 Bxd5 20. exd5 b5 21. h5 Qg5 22. Bf5 g6 23. hxg6 fxg6 24. Be6+ Kh8 25. Rh4 Bg7 26. Rdh1 h6 27. Rg4 e4 28. Qxe4 Qf6 29. Rxh6+ Bxh6 30. Rxg6 Rc4 31. Qd3 Bg7 32. Rxf6 Rxf6 33. f4 Rh6 34. a3 Rh1+ 35. Ka2 Rh2 36. Qg6 1-0

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.05.01"]
[Round "3"]
[White "Jacobs, John N"]
[Black "Stoutenborough, Ross"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "70"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 f5 8. Qe2 d6 9. g3 dxe5 10. Nxe5 Nxe5 11. Qxe5 Qd6 12. Qe2 Bd7 13. Bg2 Bc6 14. 0-0 Rd8 15. Re1 Kf7 16. Na3 Re8 17. Nc4 Qc7 18. Ne5+ Kg8 19. c4 Nb4 20. Bf4 Bxg2 21. Kxg2 Bd6 22. Rad1 Nc6 23. Nxc6 Qxc6+ 24. Qf3 Qxf3+ 25. Kxf3 Bxf4 26. Kxf4 Kf7 27. Ke5 Re7 28. c5 Rc8 29. b4 b6 30. cxb6 axb6 31. Re2 Rc4 32. a3 Rc3 33. Rd6 Rxa3 34. Rxb6 Rd3 35. Rd6 Rd5+ 0-1

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.04.30"]
[Round "2"]
[White "Grefe, John Alan"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B96"]
[PlyCount "54"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qf3 Qc7 9. 0-0-0 b5 10. e5 Bb7 11. Qh3 dxe5 12. Nxe6 fxe6 13. Qxe6+ Be7 14. Bxb5 axb5 15. Nxb5 Qc6 16. Nd6+ Kd8 17. fxe5 Kc7 18. Qxe7 Nd5 19. Rxd5 Qxd5 20. Rd1 Qxe5 21. Nxb7 Qxe7 22. Bxe7 Rxa2 23. Kb1 Rha8 24. Ba3 R2xa3 25. bxa3 Rb8 26. Rd4 Rxb7+ 27. Ka2 Kc6 0-1

[Event "West Coast Candidate Master"]
[Site "California"]
[Date "1973.04.29"]
[Round "1"]
[White "Tarjan, James Edward"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "34"]
[EventDate "1973.05.??"]
[EventType "tourn"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6 7. 0-0 Be7 8. Be3 0-0 9. f4 a6 10. a4 Qc7 11. Kh1 Rb8 12. Qe1 Bd7 13. Nb3 Nb4 14. Qd2 b6 15. Bf3 Bc6 16. Nd4 Ba8 17. Qf2 Rfe8 1/2-1/2

[Event "US Open-74"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "4"]
[White "Dunham, Gordon"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "A59"]
[PlyCount "80"]
[EventDate "1973.08.12"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. d5 b5 5. cxb5 a6 6. bxa6 Bxa6 7. Nc3 d6 8. e4 Bxf1 9. Kxf1 Nbd7 10. g3 Bg7 11. Kg2 0-0 12. Qe2 Qa5 13. Bg5 h6 14. Be3 Rfb8 15. Rab1 Ng4 16. Bd2 Qa6 17. Qxa6 Rxa6 18. a3 Nge5 19. Nxe5 Nxe5 20. Ne2 Nc4 21. Bc3 Rab6 22. Bxg7 Kxg7 23. b4 Nxa3 24. Rb3 Nc2 25. Rc1 Nxb4 26. Ra3 R6b7 27. Rc4 Rd8 28. h4 Rdd7 29. Nf4 Ra7 30. Rac3 Ra2 31. g4 Rda7 32. Nd3 Nxd3 33. Rxd3 Rb2 34. Kg3 Ra1 35. Rdc3 Rf1 36. f3 Rg1+ 37. Kf4 Kf6 38. g5+ hxg5+ 39. hxg5+ Rxg5 40. Rc2 Rg2 0-1

[Event "US Open-74"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "7"]
[White "Jacobs, John N"]
[Black "Carlson, Mats"]
[Result "1/2-1/2"]
[ECO "B02"]
[PlyCount "45"]
[EventDate "1973.08.12"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nge2 Nc6 5. Nxd5 Qxd5 6. Nc3 Qe5+ 7. Be2 Nd4 8. 0-0 Nxe2+ 9. Nxe2 Bf5 10. Ng3 0-0-0 11. Nxf5 Qxf5 12. d3 e6 13. Bd2 Bd6 14. Bc3 f6 15. Qe2 Rhe8 16. Rae1 Bc5 17. Qe4 Qxe4 18. Rxe4 e5 19. Rfe1 Kd7 20. g3 Bd6 21. Kg2 Re7 22. f4 exf4 23. Rxe7+ 1/2-1/2

[Event "US Open-74"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "1"]
[White "Jacobs, John N"]
[Black "Clements, E."]
[Result "1-0"]
[ECO "B51"]
[PlyCount "47"]
[EventDate "1973.08.12"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 c5 2. e4 d6 3. Bb5+ Nc6 4. 0-0 a6 5. Bxc6+ bxc6 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Nf6 9. c4 Be7 10. Nc3 0-0 11. Bg5 Qc7 12. Rac1 Bb7 13. Nh4 g6 14. Bh6 Rfd8 15. Nf5 Bf8 16. Bg5 Bg7 17. Nxg7 Kxg7 18. Qh3 Qe7 19. Qh6+ Kg8 20. Qh4 Kg7 21. f4 d5 22. fxe5 Qc5+ 23. Kh1 Nxe4 24. Nxe4 1-0

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "12"]
[White "Denker, Arnold Sheldon"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "A58"]
[PlyCount "59"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. Nd2 Bg7 9. e4 Bxf1 10. Nxf1 0-0 11. Ne3 Qa5 12. 0-0 Nbd7 13. Kh1 Rfb8 14. Qe2 Ne8 15. Ned1 Nc7 16. Bg5 e6 17. Bd2 Nb5 18. dxe6 fxe6 19. Nxb5 Qxb5 20. Qxb5 Rxb5 21. a4 Nb6 22. axb5 Rxa1 23. Kg1 Rb1 24. Ba5 Nc4 25. Bc7 Bxb2 26. Ne3 Rxf1+ 27. Kxf1 Nd2+ 28. Ke2 Nb3 29. b6 Na5 30. Nc4 1-0

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "6"]
[White "Ewell, Michael R"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "A67"]
[PlyCount "60"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. Bd3 0-0 10. Nf3 Nf6 11. 0-0 Bg4 12. h3 Bxf3 13. Qxf3 Nbd7 14. Bd2 a6 15. a4 Qb6 16. a5 Qc7 17. g4 c4 18. Bc2 b5 19. Ne2 Rab8 20. Bb4 Nc5 21. e5 dxe5 22. fxe5 Nfd7 23. Nd4 Nxe5 24. Qf4 Qa7 25. Kh1 Qd7 26. Be4 Ned3 27. Ne6 fxe6 28. dxe6 Rxf4 29. exd7 Rxe4 30. Rad1 Rd8 0-1

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "11"]
[White "Jacobs, John N"]
[Black "Burger, Karl"]
[Result "1/2-1/2"]
[ECO "B03"]
[PlyCount "120"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Be7 10. Be2 0-0 11. 0-0 f6 12. Nh4 fxe5 13. Nxf5 exf5 14. d5 Nd4 15. Bxd4 exd4 16. Qxd4 Nd7 17. Kh1 Bd6 18. Qf2 Qg5 19. Nb5 Rae8 20. Bf3 Bc5 21. Qc2 Qh6 22. a3 a6 23. b4 Be3 24. Nc3 Bf4 25. h3 Be5 26. d6 c6 27. Rad1 Qh4 28. Rd3 Qxc4 29. Bd1 Kh8 30. Rdf3 Bxd6 31. Qd3 Qxd3 32. Rxd3 Rf6 33. Bh5 g6 34. Rfd1 Ree6 35. Bf3 Ne5 36. Rd4 Nxf3 37. gxf3 Kg7 38. Na4 Be5 39. Rd7+ Rf7 40. Nc5 Ree7 41. Rd8 h5 42. a4 h4 43. Rb1 Bc7 44. Rc8 Bd6 45. Nxa6 bxa6 46. Rxc6 Bg3 47. Rxa6 Re2 48. b5 Rfe7 49. b6 Re1+ 50. Rxe1 Rxe1+ 51. Kg2 Re2+ 52. Kg1 Kh6 53. a5 Rb2 54. Ra8 Kg5 55. Rd8 Rb5 56. a6 Rb1+ 57. Kg2 Rb2+ 58. Kf1 Rf2+ 59. Kg1 Re2 60. a7 Re1+ 1/2-1/2

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "7"]
[White "Jacobs, John N"]
[Black "Karklins, Andrew"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "103"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 5. exd5 Qxd5 6. cxd4 Nf6 7. Nc3 Qd8 8. Be2 Be7 9. a3 0-0 10. d5 Nb8 11. 0-0 Nbd7 12. Qb3 Nc5 13. Qa2 Bf5 14. Nd4 Bg6 15. Rd1 Nce4 16. Bf3 Nxc3 17. bxc3 Ne4 18. Bxe4 Bxe4 19. c4 c6 20. f3 Bg6 21. Bf4 cxd5 22. cxd5 Qb6 23. Kh1 Rfd8 24. Rac1 Rac8 25. Rxc8 Rxc8 26. h3 h6 27. a4 Qb4 28. Qb3 Qxb3 29. Nxb3 Bc2 30. Rc1 Ba3 31. Ra1 Bb2 32. Ra2 Bxb3 33. Rxb2 Bxd5 34. Be3 a6 35. a5 h5 36. Kh2 Rc4 37. Rd2 Bc6 38. Bb6 f6 39. Rd4 Rc2 40. Kg3 Kf7 41. h4 Ke6 42. Rd1 Kf5 43. Rf1 g5 44. Rf2 Rc1 45. hxg5 Rh1 46. Rd2 fxg5 47. Rd8 h4+ 48. Kf2 Bb5 49. Rd5+ Kg6 50. Bd8 Rf1+ 51. Ke3 Re1+ 52. Kf2 1-0

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "5"]
[White "Jacobs, John N"]
[Black "Martz, William E"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "46"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Qxd4 e6 6. Bc4 Nc6 7. Qe4 d6 8. Nf3 dxe5 9. Nxe5 Nxe5 10. Qxe5 Qd6 11. Bb5+ Bd7 12. Bxd7+ Qxd7 13. 0-0 Nf6 14. c4 Bd6 15. Qe2 Rc8 16. b3 Qc7 17. h3 Bh2+ 18. Kh1 Be5 19. Bb2 Bxb2 20. Qxb2 0-0 21. Nc3 a6 22. Rac1 Rfd8 23. Rcd1 h6 1/2-1/2

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "9"]
[White "Jacobs, John N"]
[Black "Ree, Hans"]
[Result "1/2-1/2"]
[ECO "C09"]
[PlyCount "65"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. exd5 exd5 5. Bb5+ Nc6 6. Nf3 Bd6 7. 0-0 Nge7 8. dxc5 Bxc5 9. Nbd2 0-0 10. Nb3 Bb6 11. Bf4 Bg4 12. h3 Bh5 13. Be2 Re8 14. Re1 Rc8 15. Nfd4 Bxe2 16. Rxe2 Ng6 17. Rxe8+ Qxe8 18. Bg3 Qe4 19. Nd2 Qe7 20. N2f3 Nxd4 21. Nxd4 Qe4 22. Nf3 h6 23. Qd2 Qc4 24. a3 Re8 25. Re1 Re4 26. Ne5 Nxe5 27. Bxe5 Qa2 28. Rxe4 dxe4 29. Qd7 e3 30. Qc8+ Kh7 31. Qf5+ Kg8 32. Qc8+ Kh7 33. Qf5+ 1/2-1/2

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "8"]
[White "Tarjan, James Edward"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B47"]
[PlyCount "82"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. g3 a6 7. Bg2 Nf6 8. Nde2 Bc5 9. 0-0 d6 10. Bf4 b5 11. Nc1 Ne5 12. Nd3 Ba7 13. a4 bxa4 14. Rxa4 Nfd7 15. Qe2 0-0 16. Be3 Nb6 17. Raa1 Bb7 18. Kh1 Nec4 19. Bc1 Nd7 20. f4 Bd4 21. Nd1 d5 22. e5 a5 23. c3 Bc5 24. b3 Ncb6 25. N1b2 Be7 26. Bd2 Ba6 27. Qd1 Nc5 28. Rf3 Bb5 29. Nxc5 Bxc5 30. c4 dxc4 31. Rxa5 Rxa5 32. Bxa5 Rd8 33. Qc2 Bc6 34. Bxb6 Bxb6 35. Rc3 cxb3 36. Qxb3 Bxg2+ 37. Kxg2 Qb7+ 38. Kh3 Rd2 39. Nc4 Qg2+ 40. Kg4 h5+ 41. Kg5 Bd8+ 0-1

[Event "US Open-72"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "10"]
[White "Weinberger, Tibor"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "B25"]
[PlyCount "96"]
[EventDate "1971.08.08"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. e4 Bg7 5. Nc3 d6 6. 0-0 Bg4 7. h3 Bxf3 8. Qxf3 Nf6 9. d3 0-0 10. Qd1 Rb8 11. Bg5 b5 12. Qd2 Nd4 13. f4 Nd7 14. Nd5 f6 15. Bh4 e6 16. c3 Nc6 17. e5 exd5 18. Bxd5+ Kh8 19. exf6 Bxf6 20. Bxc6 Bxh4 21. gxh4 Rb6 22. Qg2 Nf6 23. Bf3 Nh5 24. Bxh5 gxh5 25. Kh2 Qxh4 26. Qg5 Qxg5 27. fxg5 Rxf1 28. Rxf1 Kg7 29. Kg3 Ra6 30. a3 Kg6 31. h4 d5 32. Re1 Rd6 33. Re5 a5 34. d4 cxd4 35. cxd4 b4 36. a4 b3 37. Kf4 Rb6 38. Re3 Rb7 39. Re6+ Kg7 40. Ke5 Rb4 41. Kxd5 Rxa4 42. Re3 Rb4 43. Re7+ Kg6 44. Kc5 Rb8 45. Ra7 Rc8+ 46. Kd5 Rc2 47. Rxa5 Rxb2 48. Ra6+ Kg7 1/2-1/2

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "11"]
[White "Cavallo, Michael"]
[Black "Jacobs, John N"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "58"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Nc3 e6 7. Be3 Qc7 8. a3 d6 9. Be2 Be7 10. 0-0 0-0 11. f4 a6 12. Qe1 b5 13. Rd1 b4 14. axb4 Nxb4 15. Bd3 Nxd3 16. Rxd3 a5 17. Qg3 Ba6 18. e5 Ne8 19. f5 Bxd3 20. f6 Bg6 21. fxe7 Qxe7 22. Nd2 dxe5 23. Nde4 Nd6 24. Bg5 Nxe4 25. Nxe4 f6 26. Nxf6+ gxf6 27. Bh6 Rfc8 28. h4 Kh8 29. Qf3 e4 0-1

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "9"]
[White "Coveyou, Robert"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "B16"]
[PlyCount "72"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Ne2 e6 8. Ng3 Bg6 9. f4 Bd6 10. Qf3 Nd7 11. Be2 Qc7 12. 0-0 0-0-0 13. b4 h5 14. Ne4 h4 15. Nc5 e5 16. Qh3 Bxc5 17. dxc5 Kb8 18. fxe5 fxe5 19. Bg4 Ka8 20. Bg5 f6 21. Be3 Bd3 22. Rfd1 e4 23. Bxd7 Qxd7 24. Qxd7 Rxd7 25. Rd2 f5 26. Rf2 Rh5 27. a4 Rf7 28. Bf4 Rh8 29. Re1 Rg8 30. h3 Re7 31. Bd6 Rf7 32. Bf4 Rd7 33. Rb2 Bc4 34. Bd6 a6 35. Rf2 Rdg7 36. Rb2 Rf7 1/2-1/2

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "2"]
[White "Jacobs, John N"]
[Black "Andrus, Ira"]
[Result "1-0"]
[ECO "A07"]
[PlyCount "73"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Be7 5. g3 0-0 6. Bg2 Nbd7 7. 0-0 dxe4 8. dxe4 c6 9. e5 Ne8 10. Ne4 f6 11. exf6 Nexf6 12. Nd6 Qc7 13. Nxc8 Raxc8 14. Ng5 Nc5 15. Bh3 Rcd8 16. Qe2 e5 17. Be6+ Nxe6 18. Nxe6 Qb6 19. Nxd8 Rxd8 20. Qxe5 Bc5 21. Be3 Bxe3 22. Qxe3 Qxe3 23. fxe3 Re8 24. Rfe1 Nd5 25. e4 Nb4 26. Re2 Re5 27. h3 Nd5 28. Rae1 Nf6 29. Rd2 Kf7 30. Rd8 Ke6 31. Ra8 Kd7 32. Rxa7 Kc7 33. Ra4 b5 34. Ra7+ Kb6 35. Rxg7 h5 36. Rf7 Nxe4 37. Rf4 1-0

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "5"]
[White "Jacobs, John N"]
[Black "Avram, Herbert Mois"]
[Result "1/2-1/2"]
[ECO "A08"]
[PlyCount "130"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 Nge7 7. Nbd2 0-0 8. Nh4 d5 9. f4 f5 10. Kh1 dxe4 11. dxe4 e5 12. exf5 Nxf5 13. Nxf5 Bxf5 14. fxe5 Nxe5 15. Bxb7 Rb8 16. Bg2 Ng4 17. Qf3 Qe7 18. Qd5+ Kh8 19. Nf3 Be4 20. Bg5 Qe8 21. Qxc5 Rf5 22. Qe7 Qc6 23. Bf4 Re8 24. Qd6 Qxc2 25. Rac1 Qxb2 26. Qd7 Qb5 27. Qxa7 h6 28. h3 Ne5 29. Nxe5 Bxg2+ 30. Kxg2 Bxe5 31. Bxe5+ Qxe5 32. Rxf5 gxf5 33. Qf2 Rg8 34. Kh2 Rd8 35. Rc2 Qf6 36. Qf4 Kg7 37. Rf2 Rd4 38. Qc7+ Kg6 39. Rc2 Qd6 40. Qxd6+ Rxd6 41. a4 Rd5 42. Ra2 Ra5 43. Kg2 Kg5 44. Kf3 Kf6 45. Kf4 Kg6 46. Ra3 Kf6 47. Kf3 Kg5 48. Ra2 Kf6 49. Kf4 Ke6 50. Ra3 Kf6 51. Ke3 Ke5 52. Kd3 h5 53. Kc4 h4 54. gxh4 f4 55. Kb4 Ra8 56. a5 Ke4 57. a6 f3 58. Kb5 f2 59. Ra1 Ke3 60. Kb6 Rh8 61. a7 Ke2 62. Kb7 Rh7+ 63. Kb6 Rh6+ 64. Kb7 Rh7+ 65. Kb8 Rh8+ 1/2-1/2

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "12"]
[White "Jacobs, John N"]
[Black "Levy, Louis"]
[Result "0-1"]
[ECO "D35"]
[PlyCount "80"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Be6 8. Nge2 Nbd7 9. Nf4 c5 10. Nxe6 fxe6 11. 0-0 Rc8 12. Rc1 Ne8 13. Bxe7 Qxe7 14. dxc5 Nxc5 15. Na4 Nf6 16. Nxc5 Rxc5 17. Qa4 Rfc8 18. Rxc5 Qxc5 19. Qf4 Qc7 20. Qxc7 Rxc7 21. Rd1 e5 22. Kf1 Kf7 23. Ke2 Ke6 24. Kd2 h6 25. h3 d4 26. exd4 exd4 27. Re1+ Kd6 28. Be4 Rc5 29. Kd3 Rb5 30. Re2 Nxe4 31. Kxe4 Re5+ 32. Kd3 Rxe2 33. Kxe2 Ke5 34. Kf3 g5 35. g3 h5 36. Ke2 Ke4 37. f3+ Ke5 38. Kd3 h4 39. f4+ gxf4 40. gxh4 f3 0-1

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "3"]
[White "Jacobs, John N"]
[Black "Truesdel, L David"]
[Result "1-0"]
[ECO "B88"]
[PlyCount "55"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. a3 Be7 8. Ba2 Nc6 9. Be3 Qc7 10. 0-0 0-0 11. f4 Rd8 12. Kh1 Nxd4 13. Bxd4 e5 14. Be3 Bg4 15. Qd2 exf4 16. Rxf4 Rac8 17. Qf2 Qd7 18. Rf1 Rf8 19. Qg3 Kh8 20. Bd4 Be6 21. Rxf6 Bxf6 22. Rxf6 Rg8 23. Rh6 Rxc3 24. Bxc3 Qb5 25. h3 Qf1+ 26. Kh2 f6 27. Bxe6 Re8 28. Bf5 1-0

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "10"]
[White "Jacobs, John N"]
[Black "Vano, Edward"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "96"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 g6 4. Bg2 Bg7 5. d3 Nc6 6. Be3 Nf6 7. Qd2 Ng4 8. Bf4 e5 9. Bg5 f6 10. Be3 Nxe3 11. fxe3 Be6 12. Bh3 Bxh3 13. Nxh3 Qd7 14. Nf2 Ne7 15. h4 h5 16. 0-0-0 0-0-0 17. Kb1 Bh6 18. Qe2 f5 19. Nd5 Nxd5 20. exd5 Rdf8 21. c4 Rf7 22. Rdf1 Re8 23. a3 a6 24. Ka2 b5 25. Rc1 b4 26. b3 bxa3 27. b4 Qa4 28. b5 Rb7 29. Rc3 Qa5 30. Rxa3 Qc7 31. bxa6 Ra7 32. Rb1 Kd7 33. Rb5 Rea8 34. Rba5 Qc8 35. Qb2 Bxe3 36. Nh3 Bd4 37. Qb3 Ke7 38. Rb5 Rxa6 39. Rb7+ Kf6 40. Rxa6 Rxa6+ 41. Kb1 Be3 42. Qb5 Qa8 43. Qb2 Ra1+ 44. Qxa1 Qxb7+ 45. Kc2 Qb4 46. Qa8 Qd2+ 47. Kb1 Qxd3+ 48. Ka2 Qc2+ 0-1

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "8"]
[White "Jacobs, John N"]
[Black "Zalys, Ignas"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "23"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 Bxf3 7. Qxf3 f6 8. Qb3 Rb8 9. f4 Bc5+ 10. Kh1 exf4 11. Qf3 Ne7 12. Qh5+ 1-0

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "4"]
[White "Popovych, Orest"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B93"]
[PlyCount "41"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 Qc7 7. Bd3 g6 8. 0-0 Bg7 9. Nf3 Nbd7 10. a4 b6 11. Qe1 e5 12. Qh4 0-0 13. fxe5 dxe5 14. Bh6 Bb7 15. Ng5 Nh5 16. Bxg7 Kxg7 17. Rxf7+ Kg8 18. Rg7+ Kh8 19. Rxh7+ Kg8 20. Rg7+ Kh8 21. Rxg6 1-0

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "6"]
[White "Powell, Charles"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "B80"]
[PlyCount "104"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be3 Be7 7. Bd3 a6 8. f4 Qc7 9. Qf3 Nbd7 10. 0-0-0 b5 11. g4 Nb6 12. g5 Nfd7 13. h4 b4 14. Nce2 Bb7 15. h5 Rc8 16. g6 h6 17. gxf7+ Kxf7 18. Qg4 Nc5 19. Qg6+ Kg8 20. Kb1 Bf6 21. Rhg1 Qf7 22. Nb3 Nba4 23. e5 Nxd3 24. exf6 Qxg6 25. Rxg6 Ndxb2 26. Rxg7+ Kf8 27. Rxd6 Nc4 28. Nbd4 Nc5 29. Nxe6+ Nxe6 30. Rxe6 Na3+ 31. Ka1 Nxc2+ 32. Kb2 Bd5 33. Re5 Nxe3 34. Rxe3 Rc6 35. Rd7 Bg8 36. Rd8+ Kf7 37. Re7+ Kxf6 38. Ree8 Re6 39. Rf8+ Bf7 40. Rxf7+ Kxf7 41. Rxh8 Rxe2+ 42. Kb3 Kg7 43. Ra8 Re6 44. Kxb4 Re4+ 45. Kc3 Ra4 46. Kb3 Ra5 47. Ra7+ Kf6 48. a4 Rxh5 49. Rxa6+ Kg7 50. Rc6 Rf5 51. Kc4 h5 52. Kb4 h4 1/2-1/2

[Event "US Open-68"]
[Site "Atlanta"]
[Date "1967.??.??"]
[Round "7"]
[White "Willis, David W"]
[Black "Jacobs, John N"]
[Result "1/2-1/2"]
[ECO "A47"]
[PlyCount "98"]
[EventDate "1967.08.13"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 g6 4. Nbd2 b6 5. Bd3 Bb7 6. 0-0 Bg7 7. c3 d5 8. Ne5 Nbd7 9. f4 0-0 10. Ndf3 Ne4 11. Nxd7 Qxd7 12. Ne5 Qc7 13. Qe2 f6 14. Nf3 e5 15. fxe5 fxe5 16. dxe5 Bxe5 17. Bxe4 dxe4 18. Nxe5 Rxf1+ 19. Qxf1 Qxe5 20. Bd2 Rd8 21. Qe2 Rd3 22. Rf1 Bd5 23. Qf2 Qe7 24. b3 b5 25. Bc1 c4 26. b4 Be6 27. Qf4 Bf7 28. h4 Rd5 29. Rf2 Rh5 30. g3 Rd5 31. Rd2 Qd7 32. Rd4 Qe6 33. Rxd5 Qxd5 34. Qf1 Qd3 35. Qxd3 cxd3 36. a3 Be6 37. Kf2 Bg4 38. Bd2 Kf7 39. a4 a6 40. axb5 axb5 41. Ke1 Ke6 42. c4 bxc4 43. Bc3 Kd5 44. Kd2 Bd7 45. Ke1 Kc6 46. Kd2 Kb5 47. Ke1 Kc6 48. Kd2 Kb5 49. Ke1 g5 1/2-1/2

[Event "Fischer sim"]
[Site "Houston"]
[Date "1964.??.??"]
[Round "?"]
[White "Fischer, Robert James"]
[Black "Jacobs, John N"]
[Result "1-0"]
[ECO "B78"]
[PlyCount "67"]
[EventDate "1964.??.??"]
[EventType "simul"]
[EventRounds "1"]
[EventCountry "USA"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6 8. Qd2 Nxd4 9. Bxd4 0-0 10. 0-0-0 Qa5 11. Bc4 Bd7 12. Kb1 Rfc8 13. Bb3 Rc7 14. h4 h5 15. g4 hxg4 16. h5 gxh5 17. Bxf6 Bxf6 18. fxg4 Bxg4 19. Rdg1 Qg5 20. Qf2 Rc5 21. Nd5 Be5 22. Nxe7+ Kh8 23. Nf5 Rc7 24. Ne3 Bd4 25. Rxg4 Qxg4 26. Nxg4 Bxf2 27. Nxf2 Rc5 28. Bd5 Kg7 29. Rxh5 Rc7 30. a3 Rh8 31. Rxh8 Kxh8 32. Ng4 Re7 33. Nh6 Kg7 34. Nf5+ 1-0

