[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2023.01.06"]
[Round "10"]
[White "Finn, Peter"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B36"]
[WhiteElo "2123"]
[BlackElo "1905"]
[PlyCount "59"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6 8. f3 Bg7 9. Be3 0-0 10. Qd2 a5 11. Na4 Nd7 12. 0-0-0 Qc7 13. Kb1 Ne5 14. Nb6 Be6 15. f4 Nc6 16. Nxa8 Rxa8 17. Be2 a4 18. Rc1 b6 19. g4 a3 20. b3 Bb2 21. Rc2 f6 22. h4 Bf7 23. g5 e5 24. gxf6 Bd4 25. h5 Qa7 26. Bxd4 Nxd4 27. hxg6 Bxg6 28. f5 Be8 29. Rg1+ Kh8 30. Qh6 1-0

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2023.01.05"]
[Round "9"]
[White "Hryshchenko, Kamila"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2139"]
[BlackElo "1905"]
[PlyCount "65"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. d3 g6 3. f4 Bg7 4. Nf3 Nc6 5. c3 d6 6. Be2 Nf6 7. 0-0 0-0 8. Kh1 Bg4 9. h3 Bd7 10. Qe1 e6 11. g4 Ne8 12. Be3 f5 13. Nbd2 b6 14. Qg3 Qe7 15. Rae1 Kh8 16. Bd1 Qd8 17. Rg1 Nf6 18. Bc2 Qc7 19. Qh4 Ne7 20. Ng5 Kg8 21. gxf5 gxf5 22. Bb3 d5 23. e5 Ng6 24. Qg3 Ne8 25. Nxh7 Kxh7 26. Qxg6+ Kg8 27. Nf3 Rf7 28. Ng5 Re7 29. d4 Qc6 30. Bd1 Nc7 31. Nh7 Be8 32. Nf6+ Kf8 33. Qh7 1-0

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2023.01.04"]
[Round "8"]
[White "Jacobs, Robert"]
[Black "Kett, Timothy"]
[Result "1-0"]
[ECO "A87"]
[WhiteElo "1905"]
[BlackElo "2184"]
[PlyCount "77"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. g3 f5 4. Bg2 Nf6 5. b3 0-0 6. Bb2 d6 7. 0-0 a5 8. c4 c6 9. Nbd2 Qc7 10. Qc2 Na6 11. a3 Bd7 12. Rac1 Rae8 13. c5 dxc5 14. dxc5 e5 15. e4 Kh8 16. Rfe1 f4 17. gxf4 exf4 18. h3 Be6 19. Be5 Qd7 20. Kh2 Nh5 21. Bd6 Rg8 22. e5 Nc7 23. Ng5 Bf5 24. Be4 Bxe4 25. Qxe4 Ne6 26. Ndf3 Bh6 27. Nxe6 Rxe6 28. b4 axb4 29. axb4 Ra8 30. Ra1 Rxa1 31. Rxa1 Ng7 32. Nd4 Re8 33. b5 Ne6 34. bxc6 bxc6 35. Qxc6 Qf7 36. Nxe6 Rxe6 37. Ra8+ Kg7 38. Qe4 f3 39. Bf8+ 1-0

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2023.01.03"]
[Round "7"]
[White "Jacobs, Robert"]
[Black "Ogunshola, Ben"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "1905"]
[BlackElo "2140"]
[PlyCount "133"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 b5 4. Bg2 Bb7 5. 0-0 Nbd7 6. b3 g6 7. Bb2 Bg7 8. Nbd2 0-0 9. c4 a6 10. Qc2 Rb8 11. c5 Bxf3 12. Nxf3 e6 13. c6 Nb6 14. e4 h6 15. e5 Nfd5 16. a3 Ne7 17. Rac1 Nbd5 18. exd6 Qxd6 19. Ne5 Rb6 20. Qd2 Nxc6 21. Nxc6 Rxc6 22. Rxc6 Qxc6 23. Rc1 Qb6 24. Rc5 Rd8 25. Qc1 Rd6 26. Bxd5 exd5 27. Rxc7 Re6 28. Rc8+ Kh7 29. Qd2 Re4 30. f3 Re7 31. Kg2 Qe6 32. Rc2 h5 33. Bc1 Qf5 34. Rc3 Qf6 35. Rd3 Rc7 36. Bb2 Bh6 37. Qd1 Qf5 38. Rc3 Re7 39. Bc1 Bxc1 40. Rxc1 Re3 41. Rc7 Kg7 42. Rc6 Rd3 43. Qe2 Rxb3 44. Rxa6 Kh7 45. Ra7 Rc3 46. Kf2 g5 47. Kg2 g4 48. fxg4 hxg4 49. Re7 Qg6 50. Qf1 Rf3 51. Qe2 Rxa3 52. Qf1 Rf3 53. Qxb5 Qf6 54. Qe2 Qxd4 55. Qc2+ Kg7 56. Re2 Qf6 57. Qd1 d4 58. Re4 Rf2+ 59. Kg1 Ra2 60. Qxd4 Ra1+ 61. Kg2 Qxd4 62. Rxd4 f5 63. Rd2 Kf6 64. h3 Kg5 65. hxg4 Kxg4 66. Rd4+ Kg5 67. Rd2 1/2-1/2

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2023.01.02"]
[Round "6"]
[White "Damodaran, Patrick"]
[Black "Jacobs, Robert"]
[Result "1/2-1/2"]
[ECO "B35"]
[WhiteElo "1701"]
[BlackElo "1905"]
[PlyCount "154"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Bc4 Qb6 9. Qd2 Nxe4 10. fxe4 Bxd4 11. Bxd4 Qxd4 12. Qxd4 Nxd4 13. 0-0-0 Nc6 14. Nd5 d6 15. Bb5 Bg4 16. Bxc6 Bxd1 17. Rxd1 bxc6 18. Nxe7+ Kg7 19. Nxc6 Rfe8 20. Rd4 a6 21. Kd2 Rac8 22. Na5 Rc5 23. Nb7 Rg5 24. g3 Rb8 25. Nxd6 Rxb2 26. a3 Ra2 27. Nc4 Rh5 28. h4 Rc5 29. Kc3 Rc6 30. Kb3 Ra1 31. Rd3 Rb1+ 32. Ka2 Re1 33. Ne3 Re6 34. Nd5 R1xe4 35. Kb3 Rc6 36. c3 Rc5 37. a4 a5 38. Nb6 Rc6 39. Nd5 Rc8 40. Rd1 Rb8+ 41. Ka3 Re2 42. c4 Rc2 43. Rd4 Rc1 44. Ka2 Rc2+ 45. Ka3 Rb1 46. g4 h6 47. g5 h5 48. Nf6 Rf1 49. Kb3 Rg2 50. c5 Rb1+ 51. Kc4 Rb4+ 52. Kd5 Rxd4+ 53. Kxd4 Kf8 54. Kc4 Ke7 55. Kb5 Rc2 56. Ne4 Kd7 57. Nd6 Rb2+ 58. Kxa5 Kc6 59. Nxf7 Kxc5 60. Ne5 Rb7 61. Ka6 Rg7 62. a5 Kd5 63. Nd3 Kc6 64. Ne5+ Kc5 65. Nd3+ Kd4 66. Nf4 Ke5 67. Nd3+ Kd4 68. Nf4 Ke4 69. Ne6 Re7 70. Nf8 Kf5 71. Kb6 Rf7 72. Nxg6 Kxg6 73. a6 Rf1 74. a7 Ra1 75. Kb7 Rb1+ 76. Kc7 Rc1+ 77. Kb7 Rb1+ 1/2-1/2

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2023.01.01"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Sugden, John N"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "1905"]
[BlackElo "1997"]
[PlyCount "122"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Bc4 Na6 7. h3 Nc7 8. a4 0-0 9. 0-0 a6 10. Re1 Nd7 11. Bf4 Rb8 12. Qe2 Ne5 13. Nxe5 dxe5 14. Bg5 Qd6 15. Qd2 f6 16. Be3 b5 17. axb5 axb5 18. Be2 Bd7 19. Ra5 f5 20. f3 Rfc8 21. Rea1 Rb7 22. Nd1 Ne8 23. Ra6 Qc7 24. exf5 Bxf5 25. Rc6 Qd8 26. Rxc5 Rxc5 27. Bxc5 Nd6 28. g4 Bd7 29. Ra6 Qc7 30. Qb4 e4 31. Bxd6 Qxc2 32. Ra8+ Kf7 33. Qxe4 Qxe4 34. fxe4 exd6 35. Ra6 Ke7 36. b4 Rc7 37. Kf2 Bd4+ 38. Kf3 Rc8 39. Ra5 Rf8+ 40. Kg3 Rb8 41. Nf2 Rb7 42. g5 Ra7 43. Rxa7 Bxa7 44. h4 Bd4 45. Nd3 Bc3 46. Kf4 Bd2+ 47. Kg3 Bc3 48. Bg4 Bxg4 49. Kxg4 Be5 50. Kf3 Kf7 51. Kg4 Bc3 52. h5 Ke7 53. hxg6 hxg6 54. Kf3 Bd2 55. e5 dxe5 56. Ke4 Bxg5 57. Nxe5 Bd2 58. Nxg6+ Kd6 59. Nh4 Bxb4 60. Nf5+ Kc7 61. Nd4 Kb6 1/2-1/2

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2022.12.31"]
[Round "4"]
[White "Rolvag, Mikael"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "D25"]
[WhiteElo "2110"]
[BlackElo "1905"]
[PlyCount "47"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 dxc4 4. e3 Bg4 5. Bxc4 e6 6. h3 Bh5 7. g4 Bg6 8. Ne5 Nbd7 9. Nxg6 hxg6 10. Bf1 c5 11. Bg2 Qc7 12. Nc3 cxd4 13. exd4 Be7 14. Qe2 Nb6 15. Qb5+ Kf8 16. Qe2 Rd8 17. 0-0 a6 18. Rd1 Nbd5 19. Qf3 b5 20. Ne2 Nh7 21. Nf4 Nxf4 22. Bxf4 Qb6 23. Rac1 Nf6 24. Bc7 1-0

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2022.12.30"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Payne, Matthew"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "1905"]
[BlackElo "2116"]
[PlyCount "74"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 c5 5. d5 0-0 6. 0-0 b5 7. a4 b4 8. c4 bxc3 9. Nxc3 d6 10. e4 Ba6 11. Re1 Nbd7 12. h3 Rb8 13. Qc2 Qb6 14. Ra3 Bc4 15. Bf1 Bxf1 16. Kxf1 c4 17. Nb5 a6 18. Nbd4 Nxd5 19. Qxc4 Nb4 20. Be3 Rfc8 21. Qe2 Qb7 22. Bd2 Nc2 23. Rb3 Qa7 24. Rxb8 Nxb8 25. Nxc2 Rxc2 26. b4 Nc6 27. Qd3 Nxb4 28. Qb3 Rb2 29. Qc4 Qc5 30. Rc1 Rc2 31. Rxc2 Nxc2 32. Qxa6 h6 33. Qa8+ Kh7 34. Qe8 Qc4+ 35. Kg1 Nd4 36. Nxd4 Qxd4 37. Be3 Qxe4 1/2-1/2

[Event "Hastings Masters op"]
[Site "Hastings"]
[Date "2022.12.29"]
[Round "2"]
[White "Bryant, Harry"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1510"]
[BlackElo "1905"]
[PlyCount "88"]
[EventDate "2022.12.28"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "ENG"]
[SourceTitle "CBM 212 Extra"]
[Source "ChessBase"]
[SourceDate "2023.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nf3 0-0 7. h3 Nbd7 8. g4 a6 9. a4 b6 10. Be3 Ne8 11. Qd2 Rb8 12. Bd3 Kh8 13. g5 g6 14. Qc2 Ng7 15. h4 Nh5 16. 0-0-0 f6 17. gxf6 Ndxf6 18. Bh6 Ng7 19. Bxg7+ Kxg7 20. Qe2 Bg4 21. Rdg1 h5 22. Rg3 Nd7 23. Qe3 Rxf3 24. Rxf3 Bxh4 25. Rxh4 Qxh4 26. Rg3 Rf8 27. Ne2 Bxe2 28. Bxe2 Rf4 29. b4 cxb4 30. a5 Rxe4 31. Rxg6+ Kxg6 32. Bd3 Nc5 33. Bc2 bxa5 34. f3 Qg5 35. Qxg5+ Kxg5 36. Bxe4 h4 37. Kd2 h3 38. f4+ Kxf4 39. Bh1 a4 40. Kc2 e4 41. Kd2 a3 42. Kc2 e3 43. Bf3 Kxf3 44. Kb1 b3 0-1

[Event "4NCL Spring Online op 1st"]
[Site "Lichess.org INT"]
[Date "2021.04.27"]
[Round "7"]
[White "Jacobs, Robert"]
[Black "Southcott Moyers, Indy"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2005"]
[BlackElo "1656"]
[PlyCount "117"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. 0-0 0-0 6. c4 Nbd7 7. b3 b6 8. Bb2 Bb7 9. Nbd2 Rc8 10. Ne5 c5 11. e3 Qc7 12. cxd5 Bxd5 13. e4 Bb7 14. Rc1 Nxe5 15. dxe5 Nd7 16. f4 Rfd8 17. Qe2 Nb8 18. Rf2 Nc6 19. Nf3 Nb4 20. Ne1 Bf8 21. a3 Ba6 22. Qg4 Nd3 23. Nxd3 Rxd3 24. Bf1 Rcd8 25. Bxd3 Bxd3 26. f5 exf5 27. exf5 Kh8 28. e6 f6 29. Rd2 c4 30. b4 b5 31. Qf3 Qb6+ 32. Qf2 Qb7 33. Re1 Be7 34. g4 Rd5 35. Qf3 Qb6+ 36. Kg2 Qd6 37. Rf2 h6 38. Qg3 Qc6 39. Qf3 Qd6 40. Bc3 Kh7 41. h4 Bd8 42. Qh3 Qc6 43. Rf3 Be7 44. Ree3 Rd8 45. Kf2 Rd5 46. Qg3 Bd6 47. Qg2 Be7 48. Rg3 Qd6 49. Rgf3 Bc2 50. Qg3 Qb6 51. g5 Rxf5 52. Rxf5 Bxf5 53. Qf4 Bxe6 54. gxf6 gxf6 55. Qe4+ f5 56. Qxe6 Bxh4+ 57. Kf1 Qc7 58. Qxf5+ Kg8 59. Re8# 1-0

[Event "4NCL Spring Online op 1st"]
[Site "Lichess.org INT"]
[Date "2021.04.13"]
[Round "6"]
[White "Keely, Leo A"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2012"]
[BlackElo "2005"]
[PlyCount "115"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Nge7 5. e5 Nf5 6. Bb5 Ncd4 7. 0-0 a6 8. Bd3 d5 9. exd6 Bxd6 10. Bxf5 Nxf5 11. d3 0-0 12. Ne4 Be7 13. b3 b5 14. Kh1 Bb7 15. Qe2 Qc7 16. Ne5 Nh4 17. Rf2 f5 18. Ng5 Bxg5 19. fxg5 f4 20. Nf3 Nxf3 21. gxf3 Rae8 22. Bb2 Bd5 23. c4 Bc6 24. Be5 Qb7 25. Rg1 Rf5 26. Ba1 bxc4 27. bxc4 e5 28. h4 Qf7 29. g6 hxg6 30. Rg4 Rb8 31. Kh2 Rh5 32. Rfg2 Qe7 33. Qf2 Rb1 34. Rg1 Rxg1 35. Kxg1 Qb7 36. Kg2 Kh7 37. Rg5 Qe7 38. Rxh5+ gxh5 39. Qe1 Qd7 40. Qxe5 Qg4+ 41. Kf1 Qxf3+ 42. Ke1 Qg3+ 43. Kd2 Qg2+ 44. Kc3 f3 45. Qf5+ Qg6 46. Qxg6+ Kxg6 47. Kd2 Kf5 48. Ke3 g5 49. hxg5 Kxg5 50. Be5 h4 51. Kf2 Kf5 52. Bd6 Kg4 53. Bxc5 Kf5 54. d4 Ke4 55. d5 Bd7 56. Bb6 Bg4 57. d6 h3 58. Kg1 1-0

[Event "4NCL Spring Online op 1st"]
[Site "Lichess.org INT"]
[Date "2021.03.30"]
[Round "5"]
[White "Duke, Dillan"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B35"]
[WhiteElo "1542"]
[BlackElo "2005"]
[PlyCount "68"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Bc4 Qb6 9. Na4 Qb4+ 10. c3 Qxc4 11. b3 Qa6 12. b4 Nxd4 13. Bxd4 d6 14. Qb3 Be6 15. Qc2 b5 16. Nb2 Qc6 17. h4 h5 18. g4 hxg4 19. h5 gxf3 20. 0-0-0 Qxe4 21. Qh2 Bh6+ 22. Rd2 Ng4 23. Qh4 Bf5 24. Nd3 Qxd3 25. Kb2 Qxd2+ 26. Ka3 Be6 27. Ra1 a5 28. bxa5 Rxa5+ 29. Kb4 Ra4+ 30. Kxb5 Bd7+ 31. Kb6 Qb2+ 32. Kc7 Rc4+ 33. Bc5 Rxc5+ 34. Kxd7 Qb7# 0-1

[Event "4NCL Spring Online op 1st"]
[Site "Lichess.org INT"]
[Date "2021.03.16"]
[Round "4"]
[White "Jacobs, Robert"]
[Black "Idle, Oscar J"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2005"]
[BlackElo "1930"]
[PlyCount "124"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b5 4. a4 b4 5. c4 c5 6. Bg2 Bb7 7. 0-0 cxd4 8. Qxd4 Nc6 9. Qd1 Qb6 10. Nbd2 Na5 11. b3 Be7 12. Bb2 0-0 13. Rc1 Rac8 14. Bd4 Qa6 15. Qc2 d5 16. Ng5 g6 17. Qb2 Nd7 18. h4 dxc4 19. Bxb7 Qxb7 20. bxc4 Nb6 21. c5 Nxa4 22. Qa1 Qb5 23. Bg7 b3 24. Qe5 Rxc5 25. Rxc5 Qxc5 26. Qxc5 Nxc5 27. Bxf8 Kxf8 28. Ra1 Nc6 29. Rb1 Na5 30. Ra1 Bd8 31. Ngf3 b2 32. Ra2 Nc4 33. Nb1 a6 34. Nfd2 Nxd2 35. Nxd2 Bf6 36. Ra3 Ke7 37. Nb1 Kd6 38. Kf1 Kc6 39. Ke1 Kb5 40. Kd1 Bd4 41. e3 Be5 42. Kc2 a5 43. f4 Bg7 44. Nc3+ Kb4 45. Nb1 a4 46. g4 f5 47. gxf5 exf5 48. Ra2 Ne4 49. Ra3 Nd6 50. Rd3 Nc4 51. Rd7 Nxe3+ 52. Kd3 a3 53. Rb7+ Ka5 54. Nxa3 Bf8 55. Nc4+ Nxc4 56. Kxc4 Bh6 57. Rxb2 Bxf4 58. Kc5 Be3+ 59. Kd5 f4 60. Ke4 h6 61. Rb3 Ka4 62. Rb6 Bxb6 0-1

[Event "4NCL Spring Online op 1st"]
[Site "Lichess.org INT"]
[Date "2021.03.02"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Cole, Graham"]
[Result "1-0"]
[ECO "A49"]
[WhiteElo "2005"]
[BlackElo "1802"]
[PlyCount "71"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. b3 c5 7. Bb2 Nc6 8. d5 Nb4 9. c4 Bf5 10. a3 Na6 11. Nbd2 Ne4 12. Bxg7 Kxg7 13. Nh4 Nxd2 14. Nxf5+ gxf5 15. Qxd2 Nc7 16. Qg5+ Kh8 17. Qxf5 e6 18. Qh3 exd5 19. cxd5 f5 20. e4 Qg5 21. Rae1 Rae8 22. exf5 Qxf5 23. Qxf5 Rxf5 24. Rxe8+ Nxe8 25. Re1 Nf6 26. Re6 Nxd5 27. Rxd6 Nc3 28. Bxb7 Nb5 29. Rd7 Nxa3 30. Be4 Rh5 31. Rxa7 Nb5 32. Ra5 Nc3 33. Bf3 Rf5 34. Kg2 Nd5 35. Bxd5 Rxd5 36. b4 1-0

[Event "4NCL Spring Online op 1st"]
[Site "Lichess.org INT"]
[Date "2021.02.16"]
[Round "2"]
[White "Kumar, Soham"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1783"]
[BlackElo "2005"]
[PlyCount "72"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 d5 5. e5 Bg4 6. Be2 Nc6 7. 0-0 Nh6 8. Na3 cxd4 9. cxd4 0-0 10. Bf4 Nf5 11. Nc2 Qb6 12. Be3 e6 13. b3 f6 14. exf6 Bxf6 15. Ne5 Nxe3 16. fxe3 Bxe2 17. Qxe2 Nxe5 18. dxe5 Bxe5 19. Rad1 Rac8 20. Nd4 Rxf1+ 21. Qxf1 Bxd4 22. exd4 e5 23. Qf3 e4 24. Qg4 Rf8 25. Qd7 Qc6 26. Qe7 Rf7 27. Qd8+ Kg7 28. Qg5 Qf6 29. Qe3 Qf4 30. Qe2 e3 31. Rd3 Re7 32. g3 Qe4 33. a3 h5 34. h3 h4 35. gxh4 Qxd3 36. Qxd3 e2 0-1

[Event "4NCL Spring Online 1st"]
[Site "Lichess.org INT"]
[Date "2021.02.02"]
[Round "1"]
[White "Jacobs, Robert"]
[Black "Merriman, Rob"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "1905"]
[PlyCount "118"]
[EventDate "2021.02.02"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "ENG"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 c5 3. g3 cxd4 4. Nxd4 Nc6 5. Nb3 d5 6. Bg2 Nf6 7. 0-0 Be7 8. Nc3 0-0 9. e4 dxe4 10. Nxe4 Qc7 11. Nxf6+ Bxf6 12. c3 Rd8 13. Qe2 b6 14. Bf4 e5 15. Be3 Bb7 16. Qc4 Rd7 17. a4 Ne7 18. Qxc7 Rxc7 19. Rfd1 Bxg2 20. Kxg2 Nf5 21. a5 Nxe3+ 22. fxe3 Rd8 23. Rxd8+ Bxd8 24. axb6 axb6 25. Ra8 Rd7 26. Kf3 f6 27. Ke2 Kf7 28. Nd2 Ke7 29. Nc4 Rb7 30. e4 g6 31. g4 b5 32. Ne3 Kd7 33. b3 Be7 34. Nd5 Ke6 35. Ra6+ Kf7 36. Kd3 Rd7 37. Ke3 Bc5+ 38. Kd3 Bd6 39. c4 bxc4+ 40. Kxc4 Ke6 41. b4 f5 42. gxf5+ gxf5 43. exf5+ Kxf5 44. b5 e4 45. b6 Bxh2 46. Ra7 Rd8 47. Rxh7 Bg3 48. b7 Kg4 49. Rg7+ Kf3 50. Re7 Bf4 51. Nxf4 Kxf4 52. Rc7 Rb8 53. Kc5 e3 54. Rf7+ Kg3 55. Kc6 e2 56. Re7 Kf2 57. Kc7 Rxb7+ 58. Kxb7 e1Q 59. Rxe1 Kxe1 1/2-1/2

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.12.06"]
[Round "9"]
[White "Jacobs, Robert"]
[Black "Chilton, James I"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1935"]
[BlackElo "1711"]
[PlyCount "55"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 e5 3. c4 d4 4. b4 Nf6 5. Nf3 Nbd7 6. Qb3 c5 7. 0-0 Bd6 8. a3 0-0 9. d3 Qe7 10. Nh4 Nb6 11. Bg5 cxb4 12. axb4 Bxb4 13. Nd2 Bc3 14. Rab1 Bd7 15. Ne4 Ba4 16. Qa2 Bc6 17. Nf5 Qd8 18. Nxf6+ gxf6 19. Bxc6 bxc6 20. Bh6 Re8 21. e4 dxe3 22. Qe2 exf2+ 23. Rxf2 Bd2 24. Qxd2 Nd7 25. Qe2 Nf8 26. Bxf8 Kxf8 27. Qg4 Re6 28. Rb7 1-0

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.12.05"]
[Round "8"]
[White "Varsha, Ramesh"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1669"]
[BlackElo "1935"]
[PlyCount "61"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Be2 0-0 8. Qd2 d5 9. Nxc6 bxc6 10. 0-0-0 Qa5 11. Kb1 Rb8 12. b3 Ng4 13. Nxd5 Qa3 14. Nc3 Nxe3 15. Qxe3 Be6 16. e5 Qa5 17. f4 c5 18. Nd5 Bxd5 19. Rxd5 Rfc8 20. Bc4 Rb4 21. Qd2 e6 22. Rd7 Rcb8 23. Rd1 Bh6 24. g3 R8b6 25. Rd8+ Kg7 26. Qd7 Bxf4 27. gxf4 Rxc4 28. Qe7 Kh6 29. Qg5+ Kg7 30. Qf6+ Kh6 31. R8d3 1-0

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.12.04"]
[Round "7"]
[White "Jacobs, Robert"]
[Black "Tombolis, Christopher"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "1935"]
[BlackElo "1824"]
[PlyCount "69"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. g3 d5 2. Bg2 Nf6 3. Nf3 e6 4. d4 Be7 5. 0-0 0-0 6. c4 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bf4 Nd5 11. Bd2 b5 12. Qc2 Nb6 13. a5 Nc4 14. Bc3 f5 15. b3 Be4 16. Qc1 Nd6 17. Nbd2 Nd7 18. Bb4 Bd5 19. Qa3 Re8 20. Rac1 Rc8 21. Rfd1 Nb7 22. Nf1 Bxb4 23. Qxb4 c5 24. dxc5 Qxa5 25. Qh4 Nf6 26. b4 Qa2 27. Ne3 Qxe2 28. Rd2 Bxf3 29. Rxe2 Bxe2 30. Bxb7 Rc7 31. c6 Bf3 32. Qf4 Rxb7 33. cxb7 Bxb7 34. Rc7 e5 35. Qg5 1-0

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.12.03"]
[Round "6"]
[White "Ciocan, Maria Alexandra"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2058"]
[BlackElo "1935"]
[PlyCount "51"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. 0-0 Nge7 5. c3 a6 6. Ba4 b5 7. Bc2 Qc7 8. d4 cxd4 9. cxd4 d5 10. Nc3 Nb4 11. Bb3 Bb7 12. Ne5 Ng6 13. a3 dxe4 14. axb4 Nxe5 15. dxe5 Qxe5 16. g3 Bxb4 17. Bf4 Qf5 18. Nxb5 0-0 19. Nd6 Bxd6 20. Qxd6 Rfd8 21. Qe5 Qg4 22. Be3 Bc6 23. Bc4 h5 24. Qg5 Qh3 25. Rxa6 Rxa6 26. Qxd8+ 1-0

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.12.02"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Ogunshola, Ben"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1935"]
[BlackElo "2169"]
[PlyCount "86"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 Nf6 3. c4 Nc6 4. Nc3 g6 5. d3 Bg7 6. e3 0-0 7. Nge2 d6 8. 0-0 Bg4 9. h3 Be6 10. Nd5 Ne7 11. e4 c6 12. Nxe7+ Qxe7 13. Bg5 Qd7 14. Kh2 d5 15. Qc2 b5 16. b3 Rfc8 17. Rad1 d4 18. Ng1 Ne8 19. Bc1 a5 20. f4 f6 21. Nf3 Kh8 22. Rf2 Nd6 23. fxe5 fxe5 24. Ng5 Bg8 25. Rdf1 h6 26. c5 hxg5 27. cxd6 Qxd6 28. Bxg5 Rf8 29. h4 Rxf2 30. Rxf2 c5 31. Bf1 a4 32. bxa4 Rxa4 33. Qd1 Rxa2 34. Rxa2 Bxa2 35. h5 Kh7 36. h6 Bxh6 37. Bxh6 Qf6 38. Qd2 Qxf1 39. Bg5 Be6 40. Bh4 Bg4 41. Qa2 c4 42. Bg5 Qh3+ 43. Kg1 Qxg3+ 0-1

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.12.01"]
[Round "4"]
[White "Nergard, Ole Kristian"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "1639"]
[BlackElo "1935"]
[PlyCount "42"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 Nf6 6. d4 Qb6 7. Na3 cxd4 8. cxd4 d5 9. exd5 Nxd5 10. Qb3 Be6 11. Nc4 Qc7 12. Ng5 0-0 13. Nxe6 fxe6 14. Bxc6 bxc6 15. Qh3 Rf5 16. Be3 Raf8 17. Rae1 Kh8 18. Bh6 Bxh6 19. Qxh6 Nf4 20. g3 R8f6 21. Re5 g5 0-1

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.11.30"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Haddock, Paul"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1935"]
[BlackElo "1481"]
[PlyCount "79"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. g3 e5 2. Bg2 Nc6 3. c4 d6 4. Nc3 Nf6 5. d3 h6 6. e3 Be7 7. Nge2 0-0 8. 0-0 Be6 9. Nd5 Bxd5 10. cxd5 Nb8 11. Bd2 c6 12. dxc6 Nxc6 13. b4 a6 14. a4 d5 15. Qb3 b5 16. Rfc1 Rc8 17. axb5 axb5 18. Bh3 Rc7 19. d4 e4 20. Ra2 g5 21. Rac2 Qd6 22. Rc5 g4 23. Bf1 Rfc8 24. Rxb5 Qd7 25. Rb6 Nd8 26. Rxc7 Qxc7 27. Ra6 Qc4 28. Qxc4 Rxc4 29. b5 Kg7 30. b6 Bb4 31. Bxb4 Rxb4 32. Nc3 Rb3 33. Nb5 Nd7 34. Ra8 Nxb6 35. Rxd8 Nc4 36. Rxd5 Rb1 37. Nc3 Rc1 38. Nxe4 f5 39. Rxf5 Kg6 40. Rc5 1-0

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.11.30"]
[Round "2"]
[White "Voiculescu Holvad, Stephane"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "1614"]
[BlackElo "1935"]
[PlyCount "89"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Nf3 0-0 7. Be2 Ne8 8. Be3 Nd7 9. 0-0 g6 10. Qd2 Ng7 11. Ne1 f5 12. f4 a6 13. Nf3 Bf6 14. Bd3 Qc7 15. a3 Re8 16. Rae1 exf4 17. Bxf4 Ne5 18. Nxe5 Bxe5 19. Bh6 fxe4 20. Bxe4 Nf5 21. Bxf5 Bxf5 22. Rxf5 Bd4+ 23. Rf2 Rxe1+ 24. Qxe1 Bxf2+ 25. Qxf2 Re8 26. Ne4 Rd8 27. Qf6 b5 28. Ng5 Re8 29. Ne6 Qe7 30. Qc3 bxc4 31. Bc1 Qf7 32. b4 cxb4 33. axb4 Qa7+ 34. Kh1 Qf7 35. Kg1 Qa7+ 36. Be3 Qf7 37. Qd4 Rc8 38. Bd2 c3 39. Bxc3 Rxc3 40. Qxc3 Qa7+ 41. Kf1 Qf7+ 42. Ke1 Qb7 43. Qc4 a5 44. b5 a4 45. Qc6 1-0

[Event "London Classic op 11th"]
[Site "London"]
[Date "2019.11.29"]
[Round "1"]
[White "Jacobs, Robert"]
[Black "Zujev, Oleg"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1935"]
[BlackElo "2316"]
[PlyCount "76"]
[EventDate "2019.11.29"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 193 Extra"]
[Source "ChessBase"]
[SourceDate "2020.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.01.31"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 c5 3. Nf3 Nc6 4. 0-0 d5 5. d4 cxd4 6. Nxd4 e5 7. Nxc6 bxc6 8. c4 Be6 9. Qa4 Qd7 10. Nc3 Rd8 11. Bg5 Bc5 12. Rad1 Bd4 13. e3 Bxc3 14. bxc3 0-0 15. e4 d4 16. cxd4 exd4 17. e5 h6 18. Be3 c5 19. Qxd7 Nxd7 20. Bf4 g5 21. Bc1 Nxe5 22. f4 Nxc4 23. fxg5 hxg5 24. Bxg5 Ne3 25. Bxe3 dxe3 26. Rde1 Rd2 27. Rxe3 Rb8 28. Be4 Bh3 29. Rc1 Rbb2 30. Rec3 Bg2 31. Bc2 Rxa2 32. Rxc5 Bf3 33. Bb3 Rg2+ 34. Kf1 Raf2+ 35. Ke1 Re2+ 36. Kf1 Rxh2 37. Bxf7+ Kf8 38. Rc8+ Kg7 0-1

[Event "London CSC 5-Day U2050 op 10th"]
[Site "London"]
[Date "2018.12.13"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Bird, Joel"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "1819"]
[BlackElo "1938"]
[PlyCount "65"]
[EventDate "2018.12.09"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. g3 d5 2. Nf3 Nf6 3. Bg2 c6 4. b3 Bf5 5. Bb2 h6 6. 0-0 e6 7. c4 Be7 8. d3 Qb6 9. Nbd2 0-0 10. Qe1 Bh7 11. e4 dxe4 12. dxe4 Rd8 13. e5 Nfd7 14. Ne4 Nc5 15. Nd6 Bxd6 16. exd6 Nd3 17. Qc3 Nxb2 18. c5 Na4 19. bxa4 Qa6 20. Rfd1 Qxa4 21. Rd4 Qc2 22. Qxc2 Bxc2 23. Rc1 Bf5 24. Ra4 Nd7 25. Nd4 Bg6 26. Bxc6 bxc6 27. Nxc6 Nxc5 28. Rd4 Nd7 29. Nxd8 Rxd8 30. Rc7 e5 31. Rd2 a5 32. Ra7 Nb6 33. Ra6 1/2-1/2

[Event "London CSC 5-Day U2050 op 10th"]
[Site "London"]
[Date "2018.12.12"]
[Round "4"]
[White "Rogers, Timothy"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2003"]
[BlackElo "1819"]
[PlyCount "82"]
[EventDate "2018.12.09"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d6 3. Nc3 Nbd7 4. Nf3 g6 5. Qd2 c5 6. e3 Bg7 7. h4 a6 8. a4 Qa5 9. Rd1 Nh5 10. Bh2 Ndf6 11. Be2 Bg4 12. 0-0 0-0 13. Nd5 Qd8 14. Nxf6+ Bxf6 15. Ng5 Bxe2 16. Qxe2 cxd4 17. exd4 Qa5 18. Ne4 Bxh4 19. g3 Bf6 20. g4 d5 21. Nc5 Ng7 22. Qe3 Qd8 23. Be5 b6 24. Nd3 Qc8 25. Qf3 h5 26. gxh5 Nxh5 27. Qxd5 Qxc2 28. Kg2 Rad8 29. Qf3 Bxe5 30. Nxe5 Rd6 31. Qg4 Rf6 32. Rc1 Qxb2 33. Rc6 e6 34. Nd7 Rf4 35. Qd1 Rd8 36. Rxb6 Qxd4 37. Rd6 Qe4+ 38. f3 Qf5 39. Nf6+ Qxf6 40. Rxd8+ Kh7 41. Qa1 Qxd8 0-1

[Event "London CSC 5-Day U2050 op 10th"]
[Site "London"]
[Date "2018.12.11"]
[Round "3"]
[White "Iyengar, Ilya"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "E65"]
[WhiteElo "2001"]
[BlackElo "1819"]
[PlyCount "88"]
[EventDate "2018.12.09"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 Nbd7 4. c4 c5 5. Nc3 cxd4 6. Nxd4 g6 7. Bg2 Bg7 8. 0-0 0-0 9. b3 a5 10. Bb2 Nc5 11. Rc1 Bg4 12. h3 Bd7 13. Kh2 h5 14. Qd2 Qb6 15. Nd5 Nxd5 16. Bxd5 Bc6 17. Nxc6 bxc6 18. Bxg7 Kxg7 19. Bf3 Ne6 20. Qc3+ f6 21. e3 Ra6 22. h4 Qb4 23. Qd3 Qc5 24. Rb1 Qe5 25. Rfc1 Nc5 26. Qc3 Qxc3 27. Rxc3 Rb8 28. a3 Rab6 29. b4 axb4 30. axb4 Na6 31. Rcb3 Rxb4 32. Rxb4 Rxb4 33. Ra1 Rb6 34. Kg2 Kf7 35. Ra2 Nb4 36. Ra7 Nd3 37. Be4 Ne5 38. Rc7 f5 39. f4 Nxc4 40. Bxc6 Nxe3+ 41. Kf3 Rb3 42. Ba4 Ra3 43. Ra7 Kf6 44. Ra6 Nf1+ 0-1

[Event "London CSC 5-Day U2050 op 10th"]
[Site "London"]
[Date "2018.12.10"]
[Round "2"]
[White "Jacobs, Robert"]
[Black "Xaxiris, Evangelos"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "1819"]
[BlackElo "1995"]
[PlyCount "103"]
[EventDate "2018.12.09"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. g3 e5 2. c4 f5 3. Bg2 Nf6 4. Nc3 d6 5. d3 Be7 6. e3 c6 7. Nge2 Be6 8. Rb1 0-0 9. 0-0 Nbd7 10. b4 g5 11. f4 gxf4 12. gxf4 Qe8 13. Kh1 Ng4 14. Ng3 Bh4 15. Qf3 exf4 16. exf4 Ndf6 17. h3 Nh5 18. Nxh5 Qxh5 19. Bd2 Qh6 20. b5 Rac8 21. Ne2 c5 22. b6 a5 23. Qxb7 Nf2+ 24. Rxf2 Bxf2 25. Qf3 Bh4 26. b7 Rb8 27. Bxa5 Rf7 28. Bc3 Qf8 29. Qe3 Bc8 30. Qg1 Bf6 31. Bxf6 Rxf6 32. bxc8Q Rxc8 33. Bd5+ Kh8 34. Ng3 Rg6 35. Qe3 Re8 36. Qf2 Qf6 37. Kh2 Rh6 38. Qb2 Qxb2+ 39. Rxb2 Rf6 40. a4 Rff8 41. a5 Re1 42. Ra2 Re7 43. a6 Ra7 44. Bb7 Kg7 45. Ne2 Rf7 46. Rb2 Rf8 47. Rb6 Rb8 48. Rxd6 Rbxb7 49. axb7 Rxb7 50. Kg2 Rb2 51. Kf3 Rb1 52. Ng3 1-0

[Event "London CSC 5-Day U2050 op 10th"]
[Site "London"]
[Date "2018.12.09"]
[Round "1"]
[White "Heppell, Ian"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "2028"]
[BlackElo "1819"]
[PlyCount "56"]
[EventDate "2018.12.09"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Nge7 5. d3 d6 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. g4 f5 10. gxf5 exf5 11. Qe1 Nd4 12. Nxd4 cxd4 13. Ne2 Qb6 14. Kh1 Bd7 15. c4 fxe4 16. Bxe4 Rae8 17. Ng3 Bc6 18. Qf2 d5 19. cxd5 Nxd5 20. Qg2 Nb4 21. Rf3 Qa6 22. Bd2 Bxe4 23. dxe4 Nc2 24. Rc1 d3 25. Bc3 Bxc3 26. bxc3 Rd8 27. f5 d2 28. Rd1 Ne1 0-1

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.09"]
[Round "9"]
[White "Busse, Tom Niklas"]
[Black "Jacobs, Robert"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "1996"]
[BlackElo "1739"]
[PlyCount "64"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. e3 Bg7 5. Nc3 d6 6. Nge2 0-0 7. 0-0 c6 8. d3 Na6 9. b3 e5 10. Ba3 Re8 11. e4 f4 12. gxf4 exf4 13. Nxf4 Ng4 14. d4 c5 15. h3 Nh6 16. Nce2 Qh4 17. Qd3 Nf7 18. Qg3 Qxg3 19. fxg3 cxd4 20. Rad1 Nc5 21. Nxd4 Nxe4 22. Rfe1 Bf5 23. Bxe4 Rxe4 24. Rxe4 Bxe4 25. Nb5 g5 26. Ne6 Be5 27. Nxd6 Bxd6 28. Bxd6 Bf5 29. Nc7 Rd8 30. c5 Bxh3 31. Rd4 h5 32. Kh2 Bg4 1/2-1/2

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.08"]
[Round "8"]
[White "Jacobs, Robert"]
[Black "Wilks, Simon"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1739"]
[BlackElo "2022"]
[PlyCount "53"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. g3 d5 2. f4 h5 3. Nf3 h4 4. Bg2 hxg3 5. hxg3 Rxh1+ 6. Bxh1 Qd7 7. Kf2 Nf6 8. Ne5 Qf5 9. Bf3 Nbd7 10. d4 c6 11. Nc3 Qh7 12. Qh1 Qxc2 13. Nd3 Ne4+ 14. Bxe4 dxe4 15. Nxe4 Qc4 16. Be3 Nf6 17. Nxf6+ exf6 18. Qe4+ Qe6 19. Qf3 Qd5 20. Qxd5 cxd5 21. Rc1 Bd6 22. Bd2 b6 23. Bb4 Kd7 24. Bxd6 Kxd6 25. Rh1 Bf5 26. Ke3 Rc8 27. Kd2 1/2-1/2

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.07"]
[Round "7"]
[White "Abrahams, Daniel"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2130"]
[BlackElo "1739"]
[PlyCount "53"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. Nf3 f5 2. b3 Nf6 3. Bb2 e6 4. g3 b6 5. Bg2 Bb7 6. c4 Be7 7. d3 0-0 8. Nbd2 d6 9. 0-0 Qe8 10. e4 f4 11. Qe2 Nbd7 12. Ng5 Nc5 13. d4 h6 14. Nh3 fxg3 15. dxc5 gxh2+ 16. Kxh2 bxc5 17. Rg1 e5 18. Bf3 Bc8 19. Rg3 Kh8 20. Rag1 Rg8 21. Qe3 Nh7 22. Bg4 Bxg4 23. Rxg4 Qh5 24. Qg3 Bg5 25. Nf3 Bf4 26. Rxf4 exf4 27. Bxg7+ 1-0

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.06"]
[Round "6"]
[White "Jacobs, Robert"]
[Black "Myall, Ivan J"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1739"]
[BlackElo "2001"]
[PlyCount "80"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. g3 d5 2. f4 Nf6 3. Nf3 Bg4 4. Bg2 Bxf3 5. Bxf3 c6 6. b3 e6 7. Bb2 Bc5 8. e3 Qe7 9. Qe2 Nbd7 10. d4 Bd6 11. 0-0 h5 12. Nd2 0-0-0 13. c4 Rdg8 14. h4 Kb8 15. c5 Bc7 16. b4 g5 17. hxg5 Nh7 18. b5 cxb5 19. a4 b4 20. a5 a6 21. Ra4 Nxg5 22. Rxb4 Nxf3+ 23. Nxf3 Ka7 24. Ba3 Qf6 25. Rfb1 Rb8 26. Qb2 Bxa5 27. Rxb7+ Ka8 28. Qe2 e5 29. R1b6 Rxb7 30. Rxf6 Nxf6 31. Qxa6+ Ra7 32. Qxf6 Rg8 33. Kg2 e4 34. Ne5 Be1 35. Qc6+ Kb8 36. Nd7+ Rxd7 37. Qxd7 Rxg3+ 38. Kf1 Rf3+ 39. Kxe1 Rxe3+ 40. Kf1 Rxa3 1-0

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.05"]
[Round "5"]
[White "Navrotescu, Andreea Cristiana"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2193"]
[BlackElo "1739"]
[PlyCount "81"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Be2 0-0 7. Nf3 Ne8 8. 0-0 Nd7 9. g3 a6 10. Ne1 g6 11. Ng2 Ng7 12. Be3 Rb8 13. Qd2 f5 14. a3 fxe4 15. Nxe4 Nf5 16. b4 b6 17. Rab1 Ra8 18. h4 Nf6 19. Nxf6+ Bxf6 20. Rb3 e4 21. Nf4 Be5 22. Ne6 Bxe6 23. dxe6 Bd4 24. Bg5 Qe8 25. g4 Ng7 26. e7 Rf7 27. bxc5 bxc5 28. Rb6 Rxe7 29. Bxe7 Qxe7 30. Qg5 Qxg5 31. hxg5 Be5 32. f4 Bd4+ 33. Kh2 Ne8 34. Bd1 Nc7 35. Rxd6 Rb8 36. f5 Rb2+ 37. Kh1 e3 38. Rd8+ Kf7 39. Rd7+ Ke8 40. Rxc7 Be5 41. Rxh7 1-0

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.04"]
[Round "4"]
[White "Jacobs, Robert"]
[Black "Pollack, Oscar"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "1739"]
[BlackElo "2014"]
[PlyCount "79"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. g3 Nf6 2. f4 d6 3. Nf3 c5 4. Bg2 Nc6 5. d3 Qc7 6. 0-0 g6 7. c3 Bg7 8. Na3 Bd7 9. Bd2 0-0-0 10. Rb1 Kb8 11. b4 cxb4 12. cxb4 Qb6+ 13. e3 Qa6 14. Nc4 b5 15. Na5 Qb6 16. Qe1 e5 17. a4 exf4 18. gxf4 Rhe8 19. axb5 Ne7 20. Nc4 Qc7 21. b6 axb6 22. b5 Ned5 23. Qc1 Ng4 24. Re1 Bf5 25. Qa3 Bc8 26. h3 Nh6 27. e4 Nf6 28. Be3 Nd7 29. Rec1 Nc5 30. e5 Nf5 31. exd6 Qa7 32. Bxc5 bxc5 33. Na5 c4+ 34. Kh2 Rxd6 35. Nc6+ Rxc6 36. bxc6+ Ka8 37. Qxa7+ Kxa7 38. Rxc4 Ba6 39. Ra4 Re2 40. Rb7+ 1-0

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.03"]
[Round "2"]
[White "Jacobs, Robert"]
[Black "Millward, Kevin P"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1739"]
[BlackElo "2035"]
[PlyCount "94"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. g3 e5 2. c4 Nc6 3. Nc3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Be6 7. Nd5 Qd7 8. d3 Nd8 9. Rb1 c6 10. Ndc3 Ne7 11. h4 h5 12. b3 f6 13. Ba3 Nf7 14. Qc2 d5 15. Na4 b6 16. b4 0-0 17. Nb2 b5 18. Nc1 Nd6 19. cxd5 cxd5 20. Nb3 Rac8 21. Nc5 Qc7 22. Qe2 Bf7 23. Bh3 f5 24. Nd1 Nb7 25. Nc3 Nxc5 26. bxc5 a6 27. 0-0 Nc6 28. Bg2 Rcd8 29. Rfc1 d4 30. Nd1 dxe3 31. Qxe3 Bxa2 32. Ra1 Bf7 33. Bb2 f4 34. Qe4 Nd4 35. Rxa6 fxg3 36. fxg3 Nf5 37. Ne3 Nxg3 38. Qf3 e4 39. Qf2 Bxb2 40. Qxb2 exd3 41. Bf3 d2 42. Rc2 Qf4 43. Kf2 d1N+ 44. Nxd1 Rxd1 45. Qxb5 Rf1+ 46. Qxf1 Nxf1 47. c6 Qg3+ 0-1

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.03"]
[Round "3"]
[White "Thatte, Nandinee"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1257"]
[BlackElo "1739"]
[PlyCount "118"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 0-0 7. Nge2 Nh5 8. 0-0 Bg5 9. f4 exf4 10. Nxf4 Nxf4 11. Bxf4 Bxf4 12. Rxf4 Nd7 13. Qe1 Ne5 14. Be2 a6 15. Qg3 Qe7 16. a3 Bd7 17. b4 b6 18. Rff1 Rfc8 19. b5 axb5 20. cxb5 Kh8 21. a4 Ra5 22. Bh5 Rf8 23. Qf4 g6 24. Be2 f6 25. Nd1 Kg7 26. Nb2 Rfa8 27. Qd2 R5a7 28. Ra3 Ra5 29. Qc2 Bxb5 30. Bxb5 Rxb5 31. axb5 Rxa3 32. Nc4 Nxc4 33. Qxc4 Qe5 34. Qc1 Ra2 35. Qb1 Ra4 36. Re1 Qd4+ 37. Kh1 Qd2 38. Rf1 Ra2 39. Rg1 c4 40. Qc1 c3 41. Qxd2 cxd2 42. Rd1 Rc2 43. h3 Rc1 44. Rxc1 dxc1Q+ 45. Kh2 Qe3 46. g4 Qxe4 47. Kg3 Qxd5 48. Kf4 Qe5+ 49. Kf3 d5 50. h4 Qe4+ 51. Kf2 d4 52. h5 d3 53. h6+ Kxh6 54. g5+ Kxg5 55. Kg3 Qe3+ 56. Kg2 Kg4 57. Kf1 Qe2+ 58. Kg1 Kg3 59. Kh1 Qg2# 0-1

[Event "London Classic op"]
[Site "London"]
[Date "2017.12.02"]
[Round "1"]
[White "Megalios, Konstantinos"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2203"]
[BlackElo "1739"]
[PlyCount "149"]
[EventDate "2017.12.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ENG"]
[SourceTitle "CBM 182 Extra"]
[Source "ChessBase"]
[SourceDate "2018.02.23"]
[SourceVersion "1"]
[SourceVersionDate "2018.02.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 e5 5. Nb5 d5 6. cxd5 Bc5 7. N5c3 0-0 8. g3 e4 9. Bg2 Re8 10. 0-0 Nbd7 11. Be3 Bxe3 12. fxe3 Nb6 13. d6 Re6 14. Qb3 Qxd6 15. Na3 Qe7 16. Nab5 Re5 17. Nxa7 Rxa7 18. Qxb6 Ra6 19. Qd4 Rd6 20. Qc4 Rc6 21. Qd4 Rd6 22. Qa7 Rd8 23. Rad1 Re8 24. Qb6 h5 25. Rd6 h4 26. Rfxf6 gxf6 27. Nd5 Rxd5 28. Rxd5 hxg3 29. hxg3 Be6 30. Rd6 f5 31. a3 Qg5 32. Kf2 Kh8 33. Qd4+ Kh7 34. Qe5 Qg4 35. Qf4 Qg6 36. Rb6 Rc8 37. Rxb7 Rc2 38. Rb8 Qh5 39. g4 Qh4+ 40. Kg1 Rc1+ 41. Bf1 Qxg4+ 42. Kf2 Qxf4+ 43. exf4 e3+ 44. Kg1 Kg6 45. Rg8+ Kf6 46. Rg3 Rb1 47. Rxe3 Rxb2 48. Bg2 Rd2 49. Kf2 Rd4 50. Kg3 Ra4 51. Rc3 Rd4 52. Bc6 Ke7 53. Bf3 Ra4 54. Rd3 Bc4 55. Rd4 Bb5 56. Rxa4 Bxa4 57. Kh4 f6 58. Kh5 Bd1 59. Kg6 Ke6 60. Kg7 Ke7 61. Kg8 Bb3+ 62. Kg7 Bd1 63. Bh5 Bc2 64. e3 Ke6 65. Bf7+ Ke7 66. Bc4 Ba4 67. Ba2 Bc2 68. Bg8 Ba4 69. Bc4 Bc2 70. Ba2 Ba4 71. Bb1 Ke6 72. Kf8 Bb3 73. Bd3 Ba4 74. Bc4+ Kd6 75. Kf7 1-0

[Event "London Classic op U2050-B 8th"]
[Site "London"]
[Date "2016.12.16"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Mircov, Nicola Alexandru"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1990"]
[BlackElo "1899"]
[PlyCount "60"]
[EventDate "2016.12.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. g3 e5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. 0-0 Be7 8. d3 0-0 9. Be3 f5 10. Qc1 Kh8 11. Rd1 Be6 12. d4 e4 13. Ne5 Nb4 14. f3 exf3 15. exf3 N4d5 16. f4 g5 17. fxg5 Nxe3 18. Qxe3 Bxg5 19. Ng6+ hxg6 20. Qxe6 Rf6 21. Qe2 Qd7 22. Bxb7 Re8 23. Qg2 Be3+ 24. Kh1 Bxd4 25. Ba6 Rd8 26. Nb5 c5 27. Nxd4 cxd4 28. Bb7 Nc4 29. Qf3 Rb6 30. Rdc1 Ne5 0-1

[Event "London Classic op U2050-B 8th"]
[Site "London"]
[Date "2016.12.15"]
[Round "4"]
[White "Bhopal, Raj"]
[Black "Jacobs, Robert"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "1933"]
[BlackElo "1990"]
[PlyCount "83"]
[EventDate "2016.12.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 Nf6 6. Re1 0-0 7. d4 cxd4 8. cxd4 d5 9. e5 Ne8 10. h3 Nc7 11. Bf1 Bf5 12. Nc3 Qd7 13. Be3 Rab8 14. Rc1 Rfc8 15. g4 Be6 16. Na4 b6 17. b3 f6 18. Bf4 fxe5 19. Nxe5 Nxe5 20. Bxe5 Bxe5 21. Rxe5 Ne8 22. Nc3 Nf6 23. Ba6 Rc7 24. f3 Bf7 25. Nb5 Rxc1 26. Qxc1 Ne8 27. Qe3 e6 28. Qc3 Qe7 29. g5 Rd8 30. h4 Kg7 31. a3 Rd7 32. Bc8 Rd8 33. Qc6 Nd6 34. Nxd6 Rxd6 35. Qc3 Be8 36. Qe3 Bd7 37. Bb7 Qf7 38. Ba6 b5 39. Bb7 a5 40. Kg2 Be8 41. Bc8 Bd7 42. Bxd7 1/2-1/2

[Event "London Classic op U2050-B 8th"]
[Site "London"]
[Date "2016.12.14"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Everett, Joe"]
[Result "1/2-1/2"]
[ECO "A02"]
[WhiteElo "1990"]
[BlackElo "1775"]
[PlyCount "131"]
[EventDate "2016.12.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 g6 3. f4 Bg7 4. Nf3 0-0 5. 0-0 d6 6. d3 c5 7. c3 Nc6 8. Na3 Rb8 9. e4 Bg4 10. h3 Bxf3 11. Qxf3 Nd7 12. g4 Qb6 13. Kh1 Qa6 14. Rd1 Rfc8 15. Bf1 b5 16. Nc2 Qb6 17. Ne3 b4 18. Nc4 Qd8 19. Bd2 Nb6 20. Rab1 Nxc4 21. dxc4 bxc3 22. Bxc3 Bxc3 23. bxc3 Qc7 24. Bg2 Na5 25. Bf1 Rxb1 26. Rxb1 Rb8 27. Qd1 Rxb1 28. Qxb1 Qb6 29. Qb5 Qxb5 30. cxb5 e5 31. fxe5 dxe5 32. a4 g5 33. h4 h6 34. hxg5 hxg5 35. Kg2 Kf8 36. Be2 Ke7 37. Kf2 Kd6 38. Ke3 c4 39. Bd1 Kc5 40. Kd2 Nb7 41. Kc1 Nd6 42. Bc2 f6 43. Kb2 Nc8 44. Ka3 Ne7 45. Bd1 Ng6 46. Be2 Nf4 47. Bf1 Ng6 48. Be2 Nh4 49. Kb2 Ng2 50. Kc1 Nf4 51. Bf1 Ne6 52. Kb2 Nd8 53. Ka3 Nb7 54. Be2 Nd8 55. Bf1 Ne6 56. Be2 Nf8 57. Bf1 Nd7 58. Be2 Nb8 59. Bf1 a6 60. bxa6 Nxa6 61. Be2 Nb8 62. Bf1 Nc6 63. Be2 Ne7 64. Bf1 Nc6 65. Be2 Na5 66. Bd1 1/2-1/2

[Event "London Classic op U2050-B 8th"]
[Site "London"]
[Date "2016.12.13"]
[Round "2"]
[White "Jacobs, Robert"]
[Black "Howell, Oliver W"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1990"]
[BlackElo "1575"]
[PlyCount "83"]
[EventDate "2016.12.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. g3 e6 2. f4 f5 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. b3 Nc6 7. Bb2 b6 8. Ne5 Bb7 9. Nxc6 Bxc6 10. Bxc6 dxc6 11. e3 Qe8 12. Qf3 Rd8 13. d3 Bc5 14. d4 Be7 15. Nd2 c5 16. Rfe1 Qh5 17. Qxh5 Nxh5 18. Nf3 Nf6 19. Ng5 cxd4 20. exd4 Rd7 21. Nxe6 Re8 22. Ng5 c5 23. c3 cxd4 24. cxd4 Rc8 25. Rac1 Rxc1 26. Rxc1 g6 27. Rc8+ Kg7 28. Nf3 Ng4 29. h3 Ne3 30. Rc1 Bd6 31. Kf2 Nd5 32. Ne5 Bxe5 33. dxe5 Kf8 34. Ba3+ Kf7 35. Bd6 Ke6 36. Rc6 Ne7 37. Bxe7+ Kxe7 38. Ke3 Ke8 39. g4 fxg4 40. hxg4 Ke7 41. f5 gxf5 42. gxf5 1-0

[Event "London Classic op U2050-B 8th"]
[Site "London"]
[Date "2016.12.12"]
[Round "1"]
[White "Lim, Wei Xinq Sean"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1770"]
[BlackElo "1990"]
[PlyCount "56"]
[EventDate "2016.12.12"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. e5 d6 6. exd6 Bxd6 7. d3 Nf6 8. 0-0 0-0 9. Re1 Qc7 10. Nc3 c4 11. dxc4 Ba6 12. b3 Rad8 13. Qe2 Bb4 14. Bb2 Nd5 15. Nxd5 cxd5 16. Ng5 h6 17. Nxe6 fxe6 18. Qxe6+ Qf7 19. Qxa6 Bxe1 20. f3 Bd2 21. Rd1 dxc4 22. Kf1 c3 23. Ba3 Rfe8 24. Bb4 Qf4 25. Qc4+ Qxc4+ 26. bxc4 Rb8 27. a3 Rec8 28. c5 Rb5 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Sachsenhofer, Wolfgang"]
[Result "0-1"]
[ECO "B33"]
[PlyCount "74"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bc4 0-0 8. f3 Na5 9. Nxa5 Bxc3+ 10. bxc3 Qxa5 11. Bb2 d5 12. exd5 e4 13. Qd4 exf3 14. 0-0-0 fxg2 15. Rhg1 Qb6 16. Rxg2 Qxd4 17. Rxd4 Bf5 18. Ba3 Rfe8 19. Bd3 Be4 20. Bxe4 Rxe4 21. Rxe4 Nxe4 22. d6 Rd8 23. Rg4 f5 24. Rf4 g6 25. h4 Nxd6 26. Rd4 Nf7 27. Rxd8+ Nxd8 28. Bd6 Kf7 29. Kd2 h6 30. Bf4 Kg7 31. Be5+ Kf8 32. Ke3 g5 33. a4 Kf7 34. c4 Nc6 35. Bc3 Kg6 36. Be1 Kh5 37. c3 Kg4 0-1

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Van Zutphen, Amy"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "45"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bc4 Be6 5. Bxe6 fxe6 6. 0-0 Nf6 7. Nc3 Be7 8. d4 exd4 9. Nxd4 Qd7 10. Be3 e5 11. Nf5 g6 12. Nxe7 Qxe7 13. f5 0-0-0 14. fxg6 hxg6 15. Bg5 Rdf8 16. Bxf6 Rxf6 17. Nd5 Qh7 18. Nxf6 Qxh2+ 19. Kf2 Rf8 20. Qg4+ Kb8 21. Qh3 Qxh3 22. gxh3 Nd4 23. Kg2 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "8"]
[White "Jacobs, Robert"]
[Black "Veltman, Jelmer"]
[Result "1-0"]
[ECO "B34"]
[PlyCount "32"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. Qd2 0-0 8. h4 Ng4 9. Nb3 Nxe3 10. Qxe3 d6 11. Be2 Be6 12. 0-0-0 Bxb3 13. cxb3 Nb4 14. a3 Qa5 15. axb4 Qa1+ 16. Kc2 Qxb2+ 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "1"]
[White "Jacobs, Robert"]
[Black "Voortman, Jasper"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "45"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 Nf6 4. Nc3 d6 5. Bc4 Bg4 6. 0-0 a6 7. a4 Qd7 8. Qe1 Be6 9. Nd5 Be7 10. d3 Nd4 11. Nxd4 exd4 12. Nxe7 Qxe7 13. e5 Nd7 14. exd6 Qxd6 15. f5 Nc5 16. fxe6 fxe6 17. b4 Nd7 18. Bxe6 0-0-0 19. Bf4 Qe7 20. Qe5 Qd6 21. Qxd6 cxd6 22. Bxd6 Rhe8 23. Rae1 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "6"]
[White "Soerdjan, Kiran"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "57"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 5. 0-0 Bg4 6. c3 Nge7 7. Bxf7+ Kd7 8. b4 Rf8 9. Qb3 Kc8 10. Be6+ Bxe6 11. Qxe6+ Kb8 12. bxc5 Rf6 13. Qc4 dxc5 14. Qxc5 b6 15. Qe3 Kb7 16. Nbd2 Ng6 17. Nc4 Qe8 18. Qe2 a6 19. a4 Qe6 20. a5 Raf8 21. Ne1 Nh4 22. f3 g5 23. axb6 cxb6 24. Qf2 Ng6 25. Ne3 Nf4 26. Nf5 Ne7 27. Bxf4 Nxf5 28. exf5 Rxf5 29. Be3 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "2"]
[White "Van Elteren, Hugo"]
[Black "Jacobs, Robert"]
[Result "1/2-1/2"]
[ECO "C25"]
[PlyCount "69"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. 0-0 Nxd4 8. Bxf4 Bc5 9. Kh1 Nf6 10. Be5 Rg8 11. g3 Nh5 12. Bxd4 Nxg3+ 13. hxg3 Rxg3 14. Bxf7+ Kf8 15. Bxc5+ d6 16. Qd2 Qh4+ 17. Qh2 Rh3 18. Bg1 Rxh2+ 19. Bxh2 Qh3 20. Rf2 Kxf7 21. Nd5 Bg4 22. Rg1 Rf8 23. Rg3 Qh4 24. Ne3 h5 25. Nf5 Bxf5 26. exf5 Ke8 27. Rgxf3 Qe4 28. Kg1 h4 29. Kf1 Kd7 30. f6 Qc4+ 31. Kg2 Qxa2 32. b3 Qa5 33. Rf5 Qc3 34. f7 Qg7+ 35. Kh3 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "4"]
[White "Van den Berg, Erik"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "D20"]
[PlyCount "71"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 g6 4. Bxc4 Bg7 5. Ne2 c6 6. Qb3 e6 7. e5 Ne7 8. Nbc3 Nf5 9. Ne4 h6 10. g4 Nxd4 11. Nd6+ Qxd6 12. exd6 Nxb3 13. Bxb3 0-0 14. Nc3 Rd8 15. Ne4 Kh7 16. g5 Nd7 17. gxh6 Bxh6 18. Ng5+ Bxg5 19. Bxg5 f6 20. Be3 Ne5 21. 0-0-0 Ng4 22. Rhe1 e5 23. f4 e4 24. f5 Bxf5 25. Bc2 Rd7 26. Bg1 Re8 27. h3 Nh6 28. Bxa7 Nf7 29. Bc5 Ng5 30. Re3 Kg7 31. h4 Nf3 32. h5 gxh5 33. Rxf3 Re5 34. Rg3+ Bg6 35. Bb6 Kf7 36. Ra3 1-0

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "9"]
[White "Volkers, Annemarie"]
[Black "Jacobs, Robert"]
[Result "1/2-1/2"]
[ECO "E61"]
[PlyCount "41"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. e3 d6 5. Nc3 0-0 6. Bd3 Nc6 7. h3 e5 8. Bc2 Bd7 9. 0-0 Ne8 10. d5 Ne7 11. e4 f5 12. Qe2 f4 13. b4 h6 14. Nh2 Qc8 15. Bd1 Nf6 16. f3 Nh5 17. Qf2 Ng3 18. Re1 Bf6 19. Ng4 Bxg4 20. fxg4 Bh4 21. Qf3 1/2-1/2

[Event "Hengelo U16 op"]
[Site "Hengelo"]
[Date "2001.??.??"]
[Round "7"]
[White "Zeeman, Goswin"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "E81"]
[PlyCount "60"]
[EventDate "2001.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bd3 Nc6 7. Nge2 e5 8. d5 Ne7 9. Be3 Ne8 10. 0-0 f5 11. Qc2 f4 12. Bf2 Kh8 13. Rfb1 g5 14. Kf1 Nf6 15. Ke1 g4 16. Kd2 Bh6 17. Bh4 Ng6 18. Bxf6+ Qxf6 19. Rh1 Bd7 20. Raf1 Nh4 21. Rhg1 Rg8 22. Kc1 gxf3 23. gxf3 Ng2 24. Rxg2 Rxg2 25. Rg1 Rag8 26. Rxg2 Rxg2 27. Qd2 Qh4 28. Kc2 Qxh2 29. b4 Rf2 30. Qe1 Rxf3 0-1

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.30"]
[Round "7"]
[White "Van den Boom, Inge"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B01"]
[PlyCount "55"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c3 g6 5. Nf3 Bg7 6. Be2 Bf5 7. 0-0 0-0 8. Nh4 Bxb1 9. Rxb1 e5 10. dxe5 Bxe5 11. Nf3 Bg7 12. Bc4 Nb6 13. Bb3 Nc6 14. Bf4 Qc8 15. Re1 Rd8 16. Qe2 Nd5 17. Bg3 Nf6 18. Ng5 Rd7 19. Rbd1 Nd8 20. Qc4 c6 21. Be5 Nd5 22. Bxg7 Kxg7 23. Qh4 h6 24. Ne4 g5 25. Nxg5 hxg5 26. Qxg5+ Kf8 27. Qh6+ Kg8 28. Re8# 1-0

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.29"]
[Round "5"]
[White "Jacobs, Jos"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B01"]
[PlyCount "48"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nf3 Nxd5 4. c4 Nf6 5. Nc3 g6 6. d4 Bg7 7. Be3 c6 8. Be2 Nbd7 9. Qc2 Nb6 10. Nh4 Be6 11. b3 Qc7 12. h3 a5 13. a4 Nbd7 14. Rd1 Nb8 15. Bf3 Na6 16. Na2 Rd8 17. g4 h6 18. Ke2 Bd7 19. g5 hxg5 20. Bxg5 Nh7 21. Nxg6 Nxg5 22. Nxh8 Qf4 23. Bh5 Bxh8 24. Qd3 Nxh3 0-1

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.29"]
[Round "6"]
[White "Jacobs, Robert"]
[Black "Jansen, Bob"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "58"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Qc2 Nge7 7. Be3 f5 8. Ne2 0-0 9. g3 b6 10. Nd2 h6 11. f4 Bd7 12. Nf3 Na5 13. c4 c5 14. Ne5 Rc8 15. b3 dxc4 16. Bxc4+ Nxc4 17. Qxc4+ Kh7 18. Qd3 cxd4 19. Nxd7 Bb4+ 20. Kf1 Qxd7 21. Nxd4 Nc6 22. Kf2 Nxd4 23. Rac1 Rfd8 24. Rxc8 Qxc8 25. Rc1 Qb7 26. Bxd4 Qd5 27. Rc4 Bc5 28. Ke3 a6 29. a4 b5 0-1

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.28"]
[Round "4"]
[White "Jacobs, Robert"]
[Black "Geven, Radboud"]
[Result "1-0"]
[ECO "C33"]
[PlyCount "39"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Bc4 Nf6 5. Nc3 d6 6. d4 g6 7. Bxf4 Bg7 8. 0-0 Ne7 9. Bd3 c6 10. Qd2 Bd7 11. Rae1 Qb6 12. Kh1 0-0-0 13. Na4 Qc7 14. e5 Ne8 15. exd6 Nxd6 16. Rxe7 Rhf8 17. Qb4 Bf6 18. Bxd6 Bxe7 19. Bxe7 a5 20. Qc5 1-0

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.28"]
[Round "3"]
[White "Sprangers, Remco"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "C63"]
[PlyCount "31"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 d6 5. Nc3 a6 6. Bc4 Na5 7. Bxg8 Rxg8 8. d4 exd4 9. Nxd4 Qf6 10. 0-0 Kd8 11. Nd5 Qg6 12. Nf4 Qf6 13. e5 Qe7 14. Re1 Nc4 15. Nd5 Qh4 16. g3 1-0

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.27"]
[Round "2"]
[White "Jacobs, Robert"]
[Black "Van der Put, Frank"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "108"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Bd3 Bd7 6. Nf3 Bb5 7. 0-0 Nc6 8. a4 Bxd3 9. Qxd3 a6 10. Rd1 Nge7 11. dxc5 Qxc5 12. Na3 Ng6 13. Re1 Qb6 14. b4 Qc7 15. b5 Ncxe5 16. Nxe5 Nxe5 17. Qg3 Bd6 18. Qxg7 Ng6 19. g3 Be5 20. Bf4 Bxg7 21. Bxc7 Bxc3 22. Nc2 Bxa1 23. Rxa1 axb5 24. axb5 Rxa1+ 25. Nxa1 0-0 26. Nb3 b6 27. Nd4 Rc8 28. Bxb6 Rc1+ 29. Kg2 e5 30. Nc6 Rb1 31. Na7 Nf8 32. Bc7 Nd7 33. Kf3 e4+ 34. Ke3 Kf8 35. h4 Ke8 36. Nc8 Rc1 37. b6 Nxb6 38. Bxb6 Rxc8 39. Kd4 Rb8 40. Bc5 Rd8 41. Ke5 f6+ 42. Kd4 Kf7 43. Ke3 Ke6 44. Bd4 Rc8 45. Bb2 f5 46. Bd4 Rc4 47. Bg7 h5 48. Bh8 Kd6 49. Bb2 Kc5 50. Ba3+ Kc6 51. Bb2 Ra4 52. Bd4 Rxd4 53. Kxd4 Kd6 54. Ke3 Ke5 0-1

[Event "Brabant-ch U16"]
[Site "Kaatsheuvel"]
[Date "2000.12.27"]
[Round "1"]
[White "Verbeet, Jaimy"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "C46"]
[PlyCount "66"]
[EventDate "2000.12.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. d3 d6 5. g3 Bg4 6. Bg2 Qd7 7. Nd5 Nge7 8. Be3 Nd4 9. Bxd4 Bxd4 10. c3 Nxd5 11. cxd4 Nb6 12. dxe5 0-0-0 13. 0-0 h5 14. Rc1 h4 15. d4 hxg3 16. fxg3 Bxf3 17. Qxf3 dxe5 18. dxe5 Qd4+ 19. Rf2 Kb8 20. Rcc2 Qxe5 21. b3 Rd7 22. Rfd2 Rhd8 23. Rxd7 Rxd7 24. Bh3 Re7 25. Qd3 a6 26. Bg2 Rd7 27. Qe2 Nc8 28. Bh3 Qa1+ 29. Kg2 Rd1 30. Kf2 Nd6 31. Bg2 Qd4+ 32. Qe3 Nxe4+ 33. Bxe4 Rf1+ 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.12"]
[Round "9"]
[White "Jacobs, Robert"]
[Black "Pots, Maurice"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "85"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Nc6 6. Bd3 a6 7. 0-0 Bd7 8. Bc2 cxd4 9. cxd4 Nge7 10. Nc3 g6 11. Rb1 Nf5 12. Ne2 Nb4 13. Bxf5 gxf5 14. a3 Nc6 15. Be3 Na5 16. Nc3 Nc4 17. Qe2 Nxe3 18. fxe3 h5 19. Qf2 Be7 20. Rfc1 Bc6 21. Qg3 Kd7 22. b4 Rhg8 23. Qf2 Rac8 24. Qb2 Rc7 25. a4 Kd8 26. a5 Qa7 27. b5 Bxb5 28. Nxb5 Rxc1+ 29. Rxc1 axb5 30. Qxb5 Qb8 31. Qb6+ Kd7 32. Rb1 Bd8 33. Qb5+ Ke7 34. Qxb7+ Qxb7 35. Rxb7+ Kf8 36. a6 Kg7 37. a7 Bc7 38. Rxc7 Ra8 39. Ng5 Kg6 40. Nxf7 f4 41. exf4 Kf5 42. Nd6+ Kxf4 43. Nb5 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "7"]
[White "Jacobs, Robert"]
[Black "De Jong, Jasper"]
[Result "0-1"]
[ECO "C01"]
[PlyCount "96"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Be3 Nf6 7. h3 Be6 8. Nd2 Qd7 9. Qc2 0-0-0 10. 0-0-0 h6 11. Bb5 a6 12. Bd3 Ne7 13. c4 dxc4 14. Nxc4 Bxc4 15. Bxc4 Ned5 16. Nf3 Rhe8 17. Qb3 Qc6 18. Kb1 b5 19. Bd3 Re7 20. Rhe1 Rde8 21. Bf5+ Kb8 22. Rc1 Qb7 23. Nd2 g6 24. Bc2 Nxe3 25. fxe3 Qxg2 26. Nc4 Qxh3 27. Nxd6 cxd6 28. Qa3 Qe6 29. Qxa6 Rb7 30. e4 g5 31. e5 dxe5 32. Qxe6 fxe6 33. dxe5 Nd5 34. Rh1 Rh8 35. Be4 Rc7 36. Rcf1 Nf4 37. Bc2 Rc5 38. Re1 h5 39. Rhg1 g4 40. Rgf1 Nd5 41. Be4 h4 42. Rg1 g3 43. Rh1 Nf4 44. Reg1 Rxe5 45. Bf3 Rg5 46. Kc2 h3 47. Kd2 h2 48. Rg2 Nxg2 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.11"]
[Round "8"]
[White "Thissen, Timon"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "C46"]
[PlyCount "39"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 g6 5. Bc4 Bg7 6. Nxc6 bxc6 7. 0-0 Ne7 8. Nc3 0-0 9. Bg5 Kh8 10. Re1 f6 11. Bf4 Bb7 12. Re3 d5 13. Rd3 Qd7 14. exd5 cxd5 15. Nxd5 Qc6 16. Ne3 Nf5 17. Bd5 Nxe3 18. Bxe3 Qb5 19. c4 Qa6 20. Ra3 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.10"]
[Round "6"]
[White "Mazajchik, Tim"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "B00"]
[PlyCount "71"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Nc3 d6 4. Nge2 Nd7 5. Be3 e6 6. Ng3 Ne7 7. f4 Nf6 8. Bd3 Qd7 9. Qe2 a6 10. 0-0 g6 11. f5 Bg7 12. e5 gxf5 13. exf6 Bxf6 14. Nh5 Bh4 15. g3 Qc6 16. Qf3 Qxf3 17. Rxf3 Bxf3 18. Ng7+ Kd7 19. gxh4 h5 20. Kf2 Bb7 21. Be2 Rag8 22. Rg1 b5 23. a3 f6 24. Nxh5 Rxg1 25. Nxf6+ Kd8 26. Kxg1 Rxh4 27. Bg5 Rh8 28. h4 f4 29. Bg4 Nf5 30. d5 Nxh4 31. Nh5+ Ke8 32. Bxh4 exd5 33. Ne2 Kf7 34. Kf2 c5 35. Nexf4 a5 36. Be6+ 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Karta, Milton"]
[Result "0-1"]
[ECO "C32"]
[PlyCount "24"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. d3 Bb4 6. Bd2 e3 7. Qe2 0-0 8. Qxe3 Re8 9. Ne4 Nxd5 10. Qd4 Nc6 11. Qc4 Nb6 12. Qb3 Bxd2+ 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.09"]
[Round "4"]
[White "Van der Eijk, Martijn"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "63"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. Nc3 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4 5. Nxc6 Bxc3+ 6. bxc3 bxc6 7. Qd4 Qf6 8. Bf4 d6 9. Rb1 Qg6 10. Qa4 Ne7 11. g3 0-0 12. Bg2 Be6 13. e4 Qf6 14. 0-0 Ng6 15. Bd2 Ne5 16. f4 Nc4 17. Bc1 Qxc3 18. f5 Nb6 19. Qa3 Qxa3 20. Bxa3 Bxa2 21. Rb2 Bc4 22. Re1 Rfe8 23. Bb4 a5 24. Bd2 Bb5 25. Ra2 f6 26. Rxa5 Nc4 27. Rxa8 Rxa8 28. Bc1 Ra2 29. e5 Nxe5 30. Bf4 Rxc2 31. Bxe5 fxe5 32. Be4 1-0

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Den Heeten, Djurre"]
[Result "0-1"]
[ECO "B57"]
[PlyCount "98"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 a6 6. Be3 Nf6 7. Bc4 Ng4 8. Nd5 e6 9. Nxc6 Nxe3 10. Nxd8 Nxd1 11. Nc7+ Kxd8 12. Nxa8 Nxb2 13. Bb3 b5 14. Nb6 Bb7 15. f3 Be7 16. a4 Kc7 17. a5 Bf6 18. Ra2 Rd8 19. 0-0 d5 20. exd5 exd5 21. Re1 Nc4 22. Bxc4 dxc4 23. Kf1 Bc6 24. Ra3 Rd2 25. Re2 Rxe2 26. Kxe2 Bd4 27. c3 Bxb6 28. axb6+ Kxb6 29. Ra1 a5 30. Ke3 b4 31. Kd4 Kb5 32. cxb4 axb4 33. Ra7 c3 34. Kd3 Bd5 35. Kc2 Kc5 36. Kd3 Bc4+ 37. Kc2 Kd4 38. Rd7+ Bd5 39. Kc1 b3 40. Rd8 Kc5 41. Rc8+ Kb4 42. Rc7 b2+ 43. Kc2 Bb3+ 44. Kb1 Be6 45. g4 Bb3 46. h3 Bd1 47. f4 Kb3 48. Rb7+ Ka3 49. Ra7+ Ba4 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.08"]
[Round "2"]
[White "Sprangers, Remco"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "62"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. 0-0 Bg4 6. a4 a6 7. b4 Bb6 8. d3 Nf6 9. Bg5 h6 10. Bh4 g5 11. Bg3 h5 12. h4 Nh7 13. Nbd2 Rg8 14. Qb3 Qd7 15. b5 Na5 16. Qc2 Nxc4 17. dxc4 gxh4 18. Nxh4 Be2 19. Rfe1 Rxg3 20. Rxe2 Qg4 21. Ndf3 Ng5 22. Kh1 Nxf3 23. fxg3 Nxh4 24. Kh2 Ng6 25. a5 Bc5 26. Rf1 h4 27. Rf3 0-0-0 28. bxa6 hxg3+ 29. Rxg3 Rh8+ 30. Rh3 Rxh3+ 31. gxh3 Qg1# 0-1

[Event "NED-ch U16 op"]
[Site "Hengelo"]
[Date "2000.08.07"]
[Round "1"]
[White "Jacobs, Robert"]
[Black "Van Zutphen, Amy"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "65"]
[EventDate "2000.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nc6 3. Nf3 d6 4. Bc4 Nf6 5. Nc3 Be7 6. 0-0 Bg4 7. Bb5 Nd7 8. Qe1 Bxf3 9. Bxc6 bxc6 10. Rxf3 0-0 11. f5 Bf6 12. Qe2 Nb6 13. Rh3 g6 14. d3 Bg5 15. Be3 Nd7 16. Qd2 Bxe3+ 17. Qxe3 Qf6 18. Rf1 Qg7 19. Qf2 Nf6 20. Rf3 Nh5 21. Ne2 Nf4 22. Nxf4 exf4 23. Rxf4 Qxb2 24. fxg6 hxg6 25. Rxf7 Qb6 26. d4 Qb8 27. Qf6 Rxf7 28. Qxf7+ Kh8 29. Qxg6 Qg8 30. Qh6+ Qh7 31. Qxh7+ Kxh7 32. Rf7+ Kg6 33. Rxc7 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.14"]
[Round "9"]
[White "Jacobs, Robert"]
[Black "Leenman, Dennis"]
[Result "0-1"]
[ECO "C32"]
[PlyCount "60"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. Bc4 Bb4 6. Nge2 Bf5 7. Ng3 Bg4 8. Nce2 0-0 9. h3 Bxe2 10. Qxe2 Nxd5 11. 0-0 Nf6 12. Nxe4 Nc6 13. Nxf6+ Qxf6 14. c3 Bd6 15. d4 Rfe8 16. Qg4 Nxd4 17. f5 Nc2 18. Bg5 Qe5 19. Bf4 Qc5+ 20. Kh1 Qxc4 21. f6 g6 22. Qg5 Bf8 23. Rac1 Re2 24. h4 Rae8 25. h5 Qc5 26. hxg6 Qxg5 27. gxh7+ Kxh7 28. Bxg5 Bh6 29. Bxh6 Kxh6 30. Kh2 Ne3 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "7"]
[White "Jacobs, Robert"]
[Black "Bensdorp, Laura"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "61"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Bc4 e5 5. Bg5 Be7 6. Nf3 c6 7. dxe5 dxe5 8. Qd2 Qc7 9. 0-0 h6 10. Be3 Nc5 11. Rad1 Ncxe4 12. Nxe4 Nxe4 13. Qd3 Nf6 14. Nxe5 Qxe5 15. Rfe1 Ng4 16. Bf4 Qa5 17. Bd6 0-0 18. Bxe7 Bf5 19. Qb3 Ne5 20. Bxf8 Rxf8 21. Bd3 Be6 22. Qxb7 Nxd3 23. cxd3 Bd5 24. a3 Qa4 25. d4 Qc2 26. Qe7 Qxb2 27. Qxa7 Rb8 28. Qa6 Qc2 29. Qd3 Qa4 30. h3 Rb3 31. Re8# 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.13"]
[Round "8"]
[White "Jansen, Bob"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "115"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d6 3. c4 g6 4. Nc3 Bg7 5. Qd2 Bf5 6. Nf3 Nbd7 7. Nh4 e6 8. e4 h6 9. Bxf6 Qxf6 10. exf5 Qxh4 11. fxe6 fxe6 12. 0-0-0 0-0-0 13. g3 Qe7 14. Bh3 Rde8 15. Rhe1 Qf7 16. f4 g5 17. Rf1 Qh5 18. Bg2 Kb8 19. Bh1 Rhf8 20. Nb5 a6 21. Qg2 d5 22. cxd5 gxf4 23. dxe6 Qxb5 24. Rd3 f3 25. Rfxf3 Rxf3 26. Qxf3 Rxe6 27. Rb3 Re1+ 28. Kd2 Qa5+ 29. Kd3 c6 30. Rxb7+ Ka8 31. Rxd7 Qb5+ 32. Kd2 Qa5+ 33. Qc3 Qxc3+ 34. Kxc3 Bxd4+ 35. Kxd4 Rxh1 36. Kc5 Rxh2 37. b4 Kb8 38. Kb6 Kc8 39. Rc7+ Kb8 40. Rxc6 h5 41. Rh6 Kc8 42. Kxa6 Rxa2+ 43. Kb6 Rg2 44. Rxh5 Rxg3 45. Rh8+ Kd7 46. b5 Rg6+ 47. Kb7 Rg7 48. Rh1 Kd6+ 49. Kb6 Rg6 50. Rc1 Kd5+ 51. Ka7 Rg7+ 52. Ka6 Rg4 53. b6 Ra4+ 54. Kb7 Rb4 55. Ka7 Ra4+ 56. Kb8 Kd6 57. b7 Rb4 58. Kc8 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.12"]
[Round "6"]
[White "Michielsen, Joost"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "B08"]
[PlyCount "95"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 g6 2. d4 d6 3. Nc3 Bg7 4. h3 Nf6 5. Nf3 Nc6 6. Be2 0-0 7. 0-0 Re8 8. Be3 e5 9. d5 Ne7 10. Nd2 Nd7 11. Na4 f5 12. exf5 Nxf5 13. Ne4 Nxe3 14. fxe3 Nf6 15. Nxf6+ Bxf6 16. Bg4 Bg5 17. e4 Bf4 18. c4 Qh4 19. Bxc8 Raxc8 20. Rf3 Qg5 21. Qd3 Rf8 22. g3 Bc1 23. h4 Rxf3 24. Qxf3 Qe3+ 25. Qxe3 Bxe3+ 26. Kg2 a6 27. Rf1 Kg7 28. Rf3 Bd4 29. Rb3 b6 30. Rf3 Ra8 31. Nc3 Rc8 32. Ne2 Bxb2 33. Rb3 Bd4 34. Nxd4 exd4 35. Rd3 Kf6 36. Rxd4 Ke5 37. Rd1 Kxe4 38. Rf1 Ke5 39. Rf7 h6 40. Rg7 Kf6 41. Rd7 b5 42. cxb5 axb5 43. g4 Ra8 44. Rxc7 Rxa2+ 45. Kf3 b4 46. Rb7 Ra3+ 47. Ke4 b3 48. g5+ 0-1

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Van de Put, Jeroen"]
[Result "1-0"]
[ECO "C30"]
[PlyCount "39"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. f4 d6 3. Nf3 Nc6 4. Bc4 Bg4 5. Nc3 Be7 6. d3 Nd4 7. Be3 Bh4+ 8. Kd2 Nxf3+ 9. gxf3 exf4 10. Bxf4 Bh5 11. Qe2 c6 12. Raf1 a5 13. a4 Ne7 14. Qg2 Ng6 15. Bg3 Qg5+ 16. f4 Qg4 17. Rhg1 Bxg3 18. Qxg3 Qxg3 19. Rxg3 Kf8 20. Rg5 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.11"]
[Round "4"]
[White "Sprangers, Remco"]
[Black "Jacobs, Robert"]
[Result "1/2-1/2"]
[ECO "C64"]
[PlyCount "90"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 a6 9. Bxc6 dxc6 10. Qc2 Qe7 11. 0-0-0 Be6 12. Ng5 0-0-0 13. Nb3 Bxb3 14. Qxb3 Rhf8 15. f3 c5 16. d5 Rd6 17. f4 h6 18. e5 Rb6 19. d6 Qd7 20. Qf3 hxg5 21. exf6 gxf6 22. fxg5 fxg5 23. dxc7 Qe6 24. Rd5 g4 25. Qf5 Qxf5 26. Rxf5 Rc6 27. Rg5 f5 28. Rf1 Rcf6 29. h4 gxh3 30. gxh3 Kxc7 31. h4 b6 32. h5 f4 33. Rg6 Kd6 34. Rxf4 Ke5 35. Rgxf6 Rxf6 36. Rxf6 Kxf6 37. Kc2 Kg5 38. Kc3 b5 39. a4 Kxh5 40. Kd3 Kg4 41. Ke4 c4 42. Kd5 Kf3 43. Kc5 Ke3 44. axb5 axb5 45. Kxb5 Kd3 1/2-1/2

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "3"]
[White "Jacobs, Robert"]
[Black "Van den Berg, Harmen"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "67"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. exd5 exd5 4. d4 c6 5. Bd3 Bd6 6. Nge2 Nf6 7. Bg5 0-0 8. Qd2 Be6 9. h4 h6 10. Bxh6 gxh6 11. Qxh6 Re8 12. f3 Bf8 13. Qg5+ Bg7 14. h5 Nh7 15. Qg3 Kh8 16. h6 Bf6 17. 0-0-0 Rg8 18. Qf2 Qf8 19. Rh2 Nd7 20. g4 b6 21. Rg1 c5 22. Bxh7 Kxh7 23. Rhg2 Qe7 24. f4 Nf8 25. g5 Bh8 26. f5 Bd7 27. Nxd5 Qd6 28. Nf6+ Bxf6 29. gxf6 Ne6 30. fxe6 Bxe6 31. Rxg8 Rxg8 32. Rxg8 Kxg8 33. Qg2+ Kf8 34. Qa8+ 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.10"]
[Round "2"]
[White "Willemze, Annemieke"]
[Black "Jacobs, Robert"]
[Result "1-0"]
[ECO "C64"]
[PlyCount "27"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 Nge7 5. d3 d5 6. Nxe5 Qd6 7. d4 Bb6 8. exd5 Qxd5 9. Bc4 Qe4 10. Re1 Qf5 11. Bxf7+ Kd8 12. Nxc6+ Nxc6 13. Qh5 Rf8 14. Bg5+ 1-0

[Event "NED U14 op"]
[Site "Hengelo"]
[Date "1999.08.09"]
[Round "1"]
[White "Jacobs, Robert"]
[Black "Hummel, Erik Jan"]
[Result "1-0"]
[ECO "C01"]
[PlyCount "56"]
[EventDate "1999.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. exd5 exd5 4. d4 c6 5. Nf3 Bd6 6. Be3 Bf5 7. Bd3 Bxd3 8. Qxd3 Nf6 9. 0-0-0 0-0 10. Bg5 Nbd7 11. Rde1 Qa5 12. Ne5 Bb4 13. Re3 Bxc3 14. Nxd7 Bxb2+ 15. Kxb2 Nxd7 16. Re7 Nb6 17. Rhe1 Nc4+ 18. Kb1 h6 19. Bc1 Qb4+ 20. Qb3 Qd6 21. g3 Qf6 22. Qd3 Qxf2 23. Rf1 Qxh2 24. Qf3 Nd2+ 25. Bxd2 Qxd2 26. Rxf7 Rae8 27. Rxf8+ Rxf8 28. Qxf8+ Kh7 1-0

[Event "Oklahoma op 16th"]
[Site "Stillwater"]
[Date "1997.08.31"]
[Round "6"]
[White "Berry, Jim"]
[Black "Jacobs, Robert"]
[Result "0-1"]
[ECO "C57"]
[WhiteElo "2015"]
[BlackElo "2240"]
[PlyCount "82"]
[EventDate "1997.08.30"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4 6. c3 b5 7. Bf1 Nxd5 8. cxd4 Qxg5 9. Bxb5+ Kd8 10. 0-0 Bb7 11. g3 exd4 12. Qf3 Be7 13. d3 Qf6 14. Nd2 Qb6 15. Ba4 Nc3 16. Ne4 Nxa4 17. Qxf7 Bxe4 18. dxe4 Kd7 19. Bf4 Qe6 20. Qxg7 c5 21. Rfd1 Rag8 22. Qe5 Bd6 23. Qxe6+ Kxe6 24. e5 Bc7 25. Rd2 Rb8 26. Rb1 Rhc8 27. b3 Nc3 28. Re1 Ba5 29. Rc1 Nd5 30. Rdc2 Nxf4 31. gxf4 Bc3 32. Rd1 Rf8 33. Rd3 Rxf4 34. Rh3 Rb7 35. Rh6+ Kf5 36. e6 Rg7+ 37. Kf1 Re4 38. f3 Rxe6 39. Rh5+ Rg5 40. Rxh7 Re1+ 41. Kf2 Reg1 0-1

[Event "Oklahoma op 16th"]
[Site "Stillwater"]
[Date "1997.08.31"]
[Round "5"]
[White "Jacobs, Robert"]
[Black "Wharry, Stephen M"]
[Result "1/2-1/2"]
[ECO "C46"]
[PlyCount "66"]
[EventDate "1997.08.30"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Nxe5 Bxf2+ 5. Kxf2 Nxe5 6. d4 Ng6 7. Bc4 d6 8. Rf1 Be6 9. Qd3 Qd7 10. Kg1 Bxc4 11. Qxc4 f6 12. Be3 0-0-0 13. a4 h5 14. Nb5 a6 15. d5 Ne5 16. Qc3 axb5 17. axb5 Qxb5 18. Ra5 Qc4 19. Qa3 Kd7 20. Ra4 Qe2 21. Ra7 Ng4 22. Bd4 Qxc2 23. b3 Qd3 24. Qa4+ b5 25. Rxc7+ Ke8 26. Qa7 Ne5 27. Bxe5 dxe5 28. Qb7 Qd4+ 29. Kh1 Qb4 30. Rxg7 Ne7 31. Qb6 Rd6 32. Qb8+ Rd8 33. Qb6 Rd6 1/2-1/2

