[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.30"]
[Round "9"]
[White "Van der Leest, Bert"]
[Black "Groenewoud, Joel"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2142"]
[BlackElo "1997"]
[PlyCount "31"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. e4 dxe4 4. Bg5 Bf5 5. f3 e3 6. g4 Bg6 7. h4 h6 8. Bxe3 e6 9. Nh3 Bb4 10. Nf4 0-0 11. Nxg6 fxg6 12. Qd3 Nd5 13. Bxh6 gxh6 14. Qxg6+ Kh8 15. Qxh6+ Kg8 16. Qg6+ 1/2-1/2

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.29"]
[Round "8"]
[White "Mohtaat, Homayoun"]
[Black "Van der Leest, Bert"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2013"]
[BlackElo "2142"]
[PlyCount "90"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Be2 Bg7 5. Be3 a6 6. g4 c5 7. dxc5 Qa5 8. f3 dxc5 9. h4 Nc6 10. Nh3 h5 11. g5 Nd7 12. Bd2 Qd8 13. Nf2 b5 14. Rb1 Bb7 15. Nd5 e6 16. Ne3 Nd4 17. c3 Nxe2 18. Qxe2 c4 19. 0-0 Qc7 20. Ng2 Rd8 21. Be3 Nc5 22. Rbd1 0-0 23. Bd4 e5 24. Bxc5 Qxc5 25. Rd2 f6 26. Rfd1 Rxd2 27. Qxd2 fxg5 28. Qd6 Qxd6 29. Rxd6 Rxf3 30. Rxg6 g4 31. Rb6 Rf7 32. Re6 g3 33. Nh1 Rf3 34. Rg6 Bxe4 35. Rg5 Rd3 36. Nxg3 Rd1+ 37. Kh2 Bf3 38. Nf5 Rd7 39. Nge3 e4 40. Rg6 Kf8 41. Nxg7 Rxg7 42. Rxa6 Rd7 43. Kg3 Rd2 44. Rb6 Rxb2 45. Nxc4 Rg2+ 0-1

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.28"]
[Round "7"]
[White "Van der Leest, Bert"]
[Black "Spit, Vincent"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "2142"]
[BlackElo "2076"]
[PlyCount "126"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. f3 Be7 9. 0-0-0 0-0 10. g4 Nxd4 11. Bxd4 b5 12. e5 Ne8 13. Ne4 Bb7 14. Bd3 f6 15. f4 f5 16. gxf5 exf5 17. Ng3 Bxh1 18. Rxh1 g6 19. Nxf5 Rxf5 20. Bxf5 Qc4 21. c3 Qxa2 22. Rg1 Ng7 23. Be4 Rf8 24. Be3 Qa1+ 25. Bb1 Nf5 26. Qd5+ Kh8 27. Bb6 Qa4 28. Rf1 b4 29. Qc4 Qa1 30. Rd1 bxc3 31. Qxc3 Qa4 32. Bxf5 Qxf4+ 33. Be3 Qxf5 34. e6+ Bf6 35. Bd4 dxe6 36. Bxf6+ Qxf6 37. Rd6 Qxc3+ 38. bxc3 Rf2 39. Rxe6 Rxh2 40. Rxa6 Kg7 41. Kd1 Kf7 42. Ke1 h5 43. Kf1 Kg7 44. Kg1 Rc2 45. Rc6 Kh6 46. c4 h4 47. c5 Kh5 48. Rc8 g5 49. c6 Kg4 50. Ra8 Rxc6 51. Ra4+ Kh5 52. Ra5 Rc2 53. Ra4 h3 54. Kh1 g4 55. Ra3 Kh4 56. Rb3 Rf2 57. Ra3 Rf3 58. Ra1 Rf4 59. Kg1 Rb4 60. Kh1 g3 61. Kg1 h2+ 62. Kg2 Rb2+ 63. Kh1 Kh3 0-1

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.27"]
[Round "6"]
[White "Vijayakumar, Rishi"]
[Black "Van der Leest, Bert"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2104"]
[BlackElo "2142"]
[PlyCount "80"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 g6 6. Nc3 Bg7 7. e4 d6 8. a4 0-0 9. Bc4 axb5 10. Bxb5 Na6 11. Nge2 Nb4 12. 0-0 Qb6 13. h3 Ba6 14. Ng3 Bxb5 15. Nxb5 Nd7 16. Rb1 Ne5 17. b3 Ned3 18. Be3 Qa5 19. Na3 e6 20. Qd2 exd5 21. exd5 Ne5 22. Nb5 Ra6 23. Ne4 Qd8 24. Nexd6 Rxd6 25. Bxc5 Rxd5 26. Qxb4 Nd3 27. Bxf8 Nxb4 28. Bxb4 h5 29. Bc3 Bxc3 30. Nxc3 Rd3 31. Ne4 Qd4 32. Rfe1 Qb4 33. Ng5 Rxb3 34. Re8+ Kg7 35. Rxb3 Qxb3 36. h4 Qxa4 37. Re7 Qxh4 38. f4 Qg3 39. Rxf7+ Kg8 40. Rf6 Qe1+ 1/2-1/2

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.26"]
[Round "5"]
[White "Van der Leest, Bert"]
[Black "Francs, Marats"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2142"]
[BlackElo "1990"]
[PlyCount "68"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Nf3 Bc5 4. 0-0 d6 5. c3 Nf6 6. d4 Bb6 7. dxe5 Nxe5 8. Nxe5 dxe5 9. Qxd8+ Kxd8 10. Bg5 Ke8 11. Nd2 Nd7 12. Rfe1 Nf8 13. Nf1 f6 14. Be3 Be6 15. Bb3 Ke7 16. Bxb6 axb6 17. Ne3 g6 18. Nd5+ Bxd5 19. Bxd5 c6 20. Bc4 Nd7 21. f3 Nc5 22. a3 Rhd8 23. Kf2 b5 24. Be2 Rd2 25. Reb1 Rad8 26. Ke1 Rc2 27. Rc1 Rxb2 28. c4 Rdd2 29. Bf1 Nb3 30. Rd1 bxc4 31. Bxc4 Rxg2 32. Rab1 Rg1+ 33. Bf1 Rxb1 34. Rxb1 Rxf1+ 0-1

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.24"]
[Round "4"]
[White "Van Foreest, Machteld"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "B75"]
[WhiteElo "2344"]
[BlackElo "2142"]
[PlyCount "111"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 a6 8. a4 b6 9. Bc4 Bb7 10. 0-0 Nbd7 11. Qe2 0-0 12. Rad1 Qc7 13. Kh1 Ne5 14. Ba2 Rac8 15. Bc1 e6 16. Qf2 Rfd8 17. Qh4 Nfd7 18. Bxe6 Bf6 19. Bg5 Bxg5 20. Qxg5 fxe6 21. Nxe6 Nf7 22. Qe7 Qc4 23. Nxd8 Rxd8 24. Rfe1 Qc8 25. Qh4 Re8 26. f4 Kg7 27. Rd3 Nf6 28. Rde3 Qg4 29. Qf2 Qc8 30. h3 Qc5 31. Qh4 b5 32. axb5 axb5 33. e5 dxe5 34. fxe5 Rxe5 35. Rxe5 Nxe5 36. Qg5 Nfd7 37. Nd1 Qxc2 38. Ne3 Qe4 39. Qe7+ Kg8 40. Qe6+ Kg7 41. Qe7+ Kg8 42. Qd8+ Kg7 43. Qg5 Nf7 44. Qxb5 Bc6 45. Qb3 Nde5 46. Rf1 Nd6 47. Qa3 Nec4 48. Qa7+ Bb7 49. Qb8 Nf5 50. Qc7+ Kh6 51. Ng4+ Kg5 52. Qd8+ Ne7 53. Rf2 h5 54. Qh8 Ng8 55. Qxg8 hxg4 56. Qd8+ 1-0

[Event "Groningen op 59th"]
[Site "Groningen"]
[Date "2023.12.23"]
[Round "3"]
[White "Van der Leest, Bert"]
[Black "De Jong, Migchiel"]
[Result "1/2-1/2"]
[ECO "B87"]
[WhiteElo "2142"]
[BlackElo "2301"]
[PlyCount "114"]
[EventDate "2023.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CB04_2024"]
[SourceDate "2023.10.16"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 d6 6. Bc4 b5 7. Bb3 Nf6 8. 0-0 Be7 9. f4 0-0 10. e5 dxe5 11. fxe5 Nfd7 12. Be3 Nxe5 13. Qh5 Nbc6 14. Rad1 Qc7 15. Ne4 Nc4 16. Bxc4 bxc4 17. Ng5 Bxg5 18. Qxg5 Bb7 19. Qc5 Rac8 20. Nxc6 Qxc6 21. Qxc6 Bxc6 22. Rd6 a5 23. Rf4 Bd5 24. a4 Rfd8 25. Rxd8+ Rxd8 26. Rd4 Rb8 27. b3 cxb3 28. cxb3 Rxb3 29. Bd2 Rb2 30. g4 f6 31. h4 Ra2 32. Bxa5 Bc6 33. h5 e5 34. Rc4 Rxa4 35. Rxa4 Bxa4 36. Kf2 Kf7 37. Bb4 Bd1 38. Kg3 Ke6 39. Bf8 g6 40. hxg6 hxg6 41. Bb4 Kd5 42. Be7 f5 43. gxf5 gxf5 44. Bd8 f4+ 45. Kf2 Bh5 46. Bc7 Ke4 47. Bd6 Kf5 48. Bc7 e4 49. Bb6 Ke6 50. Bd4 Kd5 51. Bb6 Kc4 52. Bc7 e3+ 53. Ke1 f3 54. Bg3 Kd3 55. Bh4 Bf7 56. Bg3 Bc4 57. Bh4 Ke4 1/2-1/2

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.23"]
[Round "7"]
[White "Galje, Hans"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2121"]
[BlackElo "2146"]
[PlyCount "65"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3 Nbd7 9. Bg2 Nb6 10. b3 Bg7 11. Rb1 Bb7 12. Nh4 0-0 13. 0-0 Qd7 14. h3 h6 15. e4 Ba6 16. Re1 Nh7 17. Bb2 Ng5 18. g4 Bf6 19. Nf3 Nxf3+ 20. Qxf3 Rfb8 21. Qg3 Bd4 22. Kh1 Qc7 23. f4 Nd7 24. Qh4 Kg7 25. Qxe7 Bd3 26. Rbc1 Rxa2 27. Nb5 Qa5 28. Bxd4+ cxd4 29. Nxd6 Qd2 30. Qxf7+ Kh8 31. Rg1 Rf8 32. Qxd7 Qxf4 33. Rc7 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.22"]
[Round "6"]
[White "Colijn, Stefan"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2118"]
[BlackElo "2146"]
[PlyCount "53"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. f4 Nc6 7. Nc3 dxe5 8. fxe5 Bf5 9. a3 e6 10. Nf3 Be7 11. Bd3 Bxd3 12. Qxd3 Qd7 13. 0-0 h6 14. Bd2 Rd8 15. Rae1 Nb6 16. Re4 Na5 17. Rg4 g5 18. h4 Nac4 19. Bc1 gxh4 20. b3 Na5 21. Nxh4 h5 22. Rgf4 Nxb3 23. Be3 Bg5 24. Ne4 Nxd4 25. Nd6+ Qxd6 26. exd6 Bxf4 27. Bxd4 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.21"]
[Round "5"]
[White "Van der Leest, Bert"]
[Black "Mellema, Andries"]
[Result "0-1"]
[ECO "C19"]
[WhiteElo "2146"]
[BlackElo "2097"]
[PlyCount "67"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 b6 8. a4 Qc7 9. Bb5+ Bd7 10. 0-0 Bxb5 11. axb5 0-0 12. dxc5 bxc5 13. c4 Nd7 14. cxd5 exd5 15. Qe2 Ng6 16. e6 Nf6 17. Ng5 fxe6 18. Ra6 Rfe8 19. Nxe6 Qd7 20. f4 c4 21. Rc6 a6 22. f5 axb5 23. Rb6 Nf8 24. Bb2 d4 25. Qf3 c3 26. Rb7 Qd5 27. Rxg7+ Kh8 28. Qg3 Nxe6 29. fxe6 cxb2 30. Qh4 Qxe6 31. Rg6 Rf8 32. Rgxf6 Rxf6 33. Rxf6 b1Q+ 34. Rf1 0-1

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.20"]
[Round "4"]
[White "Potze, Rudolf"]
[Black "Van der Leest, Bert"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2105"]
[BlackElo "2146"]
[PlyCount "68"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. Bc4 Nf6 4. d3 g6 5. Nf3 Bg7 6. 0-0 0-0 7. h3 Nc6 8. Bb3 e5 9. Be3 b6 10. Re1 Bb7 11. Nbd2 d5 12. Bg5 d4 13. Nf1 h6 14. Bh4 Qd6 15. c4 Nh5 16. Bg3 Nf4 17. Ba4 Ne7 18. Bxf4 exf4 19. Qd2 g5 20. Bd1 Ng6 21. N3h2 Be5 22. Qe2 Kg7 23. a3 Rae8 24. Qd2 Rh8 25. Bh5 Nh4 26. Nf3 Nxf3+ 27. Bxf3 h5 28. Nh2 Bc8 29. Kf1 Qg6 30. Bd1 g4 31. h4 Qf6 32. Ba4 Re7 33. Ke2 f3+ 34. Kd1 fxg2 0-1

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.19"]
[Round "3"]
[White "Van der Leest, Bert"]
[Black "Cako, Laszlo"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2146"]
[BlackElo "2233"]
[PlyCount "72"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. Bb3 Re8 7. Ng5 Rf8 8. Nf3 h6 9. h3 Re8 10. Re1 Bf8 11. c3 d6 12. Nbd2 Na5 13. Bc2 c5 14. Nf1 Nc6 15. Ne3 Be6 16. Nh2 Qd7 17. Nhg4 Nxg4 18. hxg4 g6 19. Qf3 Bg7 20. g3 Ne7 21. Kg2 d5 22. Rh1 d4 23. Nf5 gxf5 24. gxf5 Nxf5 25. Qh5 Nd6 26. Bxh6 f5 27. exf5 Nxf5 28. Bg5 Bf7 29. Qh7+ Kf8 30. Bb3 Qc6+ 31. f3 Qg6 32. Qxg6 Bxg6 33. Ba4 Re6 34. Rae1 Be8 35. Bb3 Rg6 36. f4 Bc6+ 0-1

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.18"]
[Round "2"]
[White "Prasanna Raghuram, Rao"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "B72"]
[WhiteElo "2311"]
[BlackElo "2146"]
[PlyCount "71"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 0-0 8. h3 Nc6 9. Bb3 Nxd4 10. Bxd4 Be6 11. 0-0 Bxb3 12. axb3 a6 13. Re1 Rc8 14. Qd3 Re8 15. Rad1 Qc7 16. Rd2 Qc6 17. Qf3 b5 18. Nd5 Nxd5 19. exd5 Qb7 20. Bxg7 Kxg7 21. Qd3 Rc5 22. c3 a5 23. Re4 Rec8 24. Rd4 Qd7 25. Re2 Qb7 26. Qd2 h5 27. Qd3 R8c7 28. Qe4 Rd7 29. Rd3 Rc8 30. Qd4+ Kg8 31. Rg3 Kh7 32. Qd3 Rdc7 33. Rg5 Kh8 34. Re4 Rg8 35. Rf4 Rg7 36. Rxf7 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2008.10.17"]
[Round "1"]
[White "Van der Leest, Bert"]
[Black "Robson, Ray"]
[Result "0-1"]
[ECO "B86"]
[WhiteElo "2146"]
[BlackElo "2466"]
[PlyCount "42"]
[EventDate "2008.10.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 126 Extra"]
[Source "ChessBase"]
[SourceDate "2008.11.05"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Be7 7. Be3 0-0 8. f4 Nxe4 9. Nxe4 d5 10. Bd3 dxe4 11. Bxe4 Nd7 12. Nb3 e5 13. Qd3 exf4 14. Bxf4 Nf6 15. 0-0-0 Qxd3 16. Bxd3 Be6 17. Rhe1 Rfd8 18. Bf5 Rxd1+ 19. Kxd1 Bxf5 20. Rxe7 Nd5 21. Re5 Bg4+ 0-1

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.20"]
[Round "9"]
[White "Rooda, Kai P"]
[Black "Van der Leest, Bert"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2146"]
[BlackElo "2199"]
[PlyCount "138"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 Bg7 6. e4 d6 7. Be2 0-0 8. 0-0 Na6 9. Be3 Nc5 10. f3 a5 11. Qd2 a4 12. Rac1 Bd7 13. Rfd1 Qa5 14. Kh1 Rfc8 15. Nc2 Bc6 16. Na3 Nfd7 17. h3 Ne6 18. Rc2 g5 19. Qc1 Qe5 20. Bf1 Qf6 21. Nd5 Bxd5 22. exd5 Nf4 23. Qd2 Ne5 24. Qf2 h5 25. g3 Nfg6 26. f4 gxf4 27. gxf4 Nd7 28. Kh2 Bh6 29. Rd4 Nc5 30. Be2 Qf5 31. Qf3 e5 32. dxe6 Nxe6 33. Rxd6 b5 34. Bd3 Bxf4+ 35. Bxf4 Qxf4+ 36. Qxf4 Ngxf4 37. Bf5 bxc4 38. Rxc4 Rxc4 39. Nxc4 Rc8 40. Bxe6 Nxe6 41. b3 axb3 42. axb3 Rc5 43. Kg3 Rb5 44. Rb6 Rd5 45. Kh4 Kg7 46. Rd6 Rb5 47. Rd3 Nf4 48. Rf3 Ng6+ 49. Kg3 Rb4 50. Kf2 f6 51. Ke2 Ne5 52. Nxe5 fxe5 53. Kd2 Rb7 54. Kc3 Kg6 55. h4 e4 56. Rf4 Re7 57. Kd2 Rb7 58. Kc3 Re7 59. Rf1 Rc7+ 60. Kd4 Rb7 61. Kc4 Rc7+ 62. Kd5 Rb7 63. Kc4 Rc7+ 64. Kd4 Rb7 65. Kc3 Rc7+ 66. Kb2 Rb7 67. Rf2 Re7 68. Kc2 Rc7+ 69. Kd1 Rb7 1/2-1/2

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.19"]
[Round "8"]
[White "Friesen, Boris"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2152"]
[BlackElo "2199"]
[PlyCount "161"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 Nf6 4. dxc5 Nc6 5. f3 d5 6. exd5 Qxd5 7. Qxd5 Nxd5 8. Bc4 e6 9. Bxd5 exd5 10. Be3 Ne5 11. b3 Nd3+ 12. Kd2 Nxc5 13. Na3 Bd7 14. Nc2 a5 15. Ne2 Ne6 16. Ned4 Bd6 17. Nf5 Be5 18. Rae1 g6 19. Nfd4 0-0 20. Bh6 Nxd4 21. Rxe5 Nc6 22. Rxd5 Be6 23. Bxf8 Bxd5 24. Bc5 a4 25. c4 Be6 26. Kc3 axb3 27. axb3 f6 28. Rd1 Kf7 29. Rd3 h5 30. Ne3 Ra5 31. Bb6 Ra6 32. Bc7 Ra1 33. Rd1 Ra2 34. Rd2 Ra1 35. Bg3 g5 36. h4 Rh1 37. Rd1 Rxd1 38. Nxd1 Ne7 39. hxg5 fxg5 40. b4 Nf5 41. Bf2 g4 42. fxg4 hxg4 43. Kd3 Nd6 44. Ne3 Kf6 45. Bh4+ Kf7 46. Bf2 b5 47. c5 Nc4 48. Nc2 Nb2+ 49. Ke4 Bc4 50. Ne3 Be2 51. c6 Ke6 52. Bg3 Nc4 53. Nc2 Bf1 54. Ne1 Nb2 55. Kd4 Na4 56. c7 Kd7 57. Bf4 Nb6 58. g3 Na8 59. Kc5 Nxc7 60. Bxc7 Kxc7 61. Nc2 Kb8 62. Ne3 Be2 63. Nd5 Bf1 64. Nc3 Kc7 65. Nxb5+ Kd7 66. Nd4 Ke7 67. Kd5 Kf6 68. Ke4 Ba6 69. b5 Bc8 70. b6 Ke7 71. Kf4 Kd6 72. Nf5+ Kc5 73. Kxg4 Kxb6 74. Kg5 Kc5 75. Kf6 Kd5 76. g4 Ke4 77. Nd6+ Kf4 78. g5 Be6 79. g6 Bg8 80. Nf7 Kg4 81. Nh6+ 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.18"]
[Round "7"]
[White "Van der Leest, Bert"]
[Black "Galje, Hans"]
[Result "0-1"]
[ECO "C17"]
[WhiteElo "2199"]
[BlackElo "2143"]
[PlyCount "72"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 Ne7 5. Qg4 0-0 6. e5 c5 7. dxc5 Nbc6 8. Nf3 Bxc5 9. Bd3 f5 10. exf6 Rxf6 11. Bg5 Rf7 12. 0-0-0 Qa5 13. Bxe7 Rxe7 14. Ng5 h6 15. Bh7+ Kh8 16. Rhe1 Bd7 17. Bg6 Rf8 18. Nxe6 Nd4 19. Rxd4 Bxd4 20. Qxd4 Rxe6 21. Rxe6 Bxe6 22. Qh4 Qc7 23. Bd3 Qf4+ 24. Qxf4 Rxf4 25. f3 g5 26. Ne2 Rf8 27. Kd2 Bd7 28. Nd4 g4 29. c3 gxf3 30. Nxf3 Rg8 31. g3 Re8 32. Nd4 Rf8 33. Ke3 Kg7 34. Nf3 Bf5 35. Be2 Bg4 36. Ng1 h5 0-1

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.17"]
[Round "6"]
[White "Vroombout, Enrico"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2141"]
[BlackElo "2199"]
[PlyCount "80"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Qd2 Be7 9. f3 0-0 10. 0-0-0 a5 11. Qf2 Nbd7 12. Kb1 a4 13. Nc1 a3 14. b3 Ra5 15. Bb5 Qc7 16. N1e2 Rc8 17. Rc1 d5 18. exd5 Nxd5 19. Nxd5 Bxd5 20. Bd3 Be6 21. Rhd1 Nc5 22. Be4 f5 23. Bd5 Bxd5 24. Rxd5 Nd7 25. Rxa5 Qxa5 26. Rd1 Qc7 27. Rc1 Nf6 28. Qe1 Nd5 29. Bd2 Bc5 30. Nc3 Qd6 31. Nxd5 Qxd5 32. Bc3 Bd6 33. Ba1 Qc5 34. Qd2 Be7 35. Rd1 Rd8 36. Qe2 Rxd1+ 37. Qxd1 Bf6 38. c4 Qf2 39. Qd5+ Kf8 40. Qd6+ Kf7 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.16"]
[Round "5"]
[White "Van der Leest, Bert"]
[Black "Sadallah, Osama"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2199"]
[BlackElo "2108"]
[PlyCount "44"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qc7 Nge7 9. Nc3 Nb4 10. Bd3 d5 11. f4 Qh4+ 12. g3 Nxd3+ 13. cxd3 Qh3 14. Kf2 Bg4 15. exd5 Ng6 16. Qxb7 0-0 17. d6 exf4 18. Bxf4 Rab8 19. Qe4 Rfe8 20. Qc6 Rxb2+ 21. Kg1 Rc8 22. Qd5 Nxf4 0-1

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.15"]
[Round "4"]
[White "Ris, Robert"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2381"]
[BlackElo "2199"]
[PlyCount "69"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. g3 d6 4. Bg2 Nf6 5. e4 0-0 6. Nge2 c5 7. 0-0 Nc6 8. d3 Ne8 9. Be3 Nd4 10. Rb1 Rb8 11. b4 e5 12. f4 f5 13. h3 Nc7 14. Kh2 a6 15. a4 Nce6 16. Qd2 Nxe2 17. Nxe2 Nd4 18. fxe5 Bxe5 19. Nxd4 cxd4 20. Bf4 Qc7 21. Rbc1 Be6 22. exf5 Rxf5 23. Bxe5 dxe5 24. Rxf5 Bxf5 25. Qg5 Re8 26. Rf1 Kh8 27. Bd5 Qe7 28. Qd2 Be6 29. Be4 b6 30. Qh6 Kg8 31. Bxg6 hxg6 32. Qxg6+ Kh8 33. Rf6 Bg8 34. Qh5+ Bh7 35. Rf7 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.14"]
[Round "3"]
[White "Van der Leest, Bert"]
[Black "Potze, Rudolf"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2199"]
[BlackElo "2137"]
[PlyCount "87"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. e4 c5 2. a3 e5 3. Bc4 Nf6 4. Nc3 Be7 5. f4 Nc6 6. d3 d6 7. f5 a6 8. Nf3 b5 9. Ba2 h6 10. 0-0 Bb7 11. Nd5 Nd4 12. Nxf6+ Bxf6 13. Ne1 b4 14. c3 Nc6 15. axb4 cxb4 16. Nc2 b3 17. Bxb3 Qb6+ 18. Ne3 Bg5 19. Rf3 Rb8 20. Kh1 Ne7 21. Nc4 Qc7 22. Bxg5 hxg5 23. f6 d5 24. fxe7 dxc4 25. Bxc4 f6 26. Bxa6 Kxe7 27. Bc4 Rhd8 28. Qa4 Rd6 29. Rff1 Rb6 30. Qa3+ Ke8 31. b3 Bc6 32. Qc5 Qd7 33. b4 Bb5 34. Qd5 Qxd5 35. exd5 Rc8 36. Rfd1 Bxc4 37. dxc4 Rxc4 38. d6 Rb7 39. Ra8+ Kd7 40. Rg8 Ke6 41. Re8+ Kf7 42. Rd8 Rxc3 43. d7 Kg6 44. g4 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.13"]
[Round "2"]
[White "Van Delft, Merijn"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "2418"]
[BlackElo "2199"]
[PlyCount "49"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 121"]
[Source "ChessBase"]
[SourceDate "2007.11.14"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.14"]
[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 0-0 9. Bc4 Bd7 10. 0-0-0 Rb8 11. Bb3 Ne5 12. Kb1 b5 13. h4 Nc4 14. Bxc4 bxc4 15. Ka1 Qb6 16. Rb1 Qa5 17. h5 Rb4 18. hxg6 fxg6 19. Bh6 Rfb8 20. Bxg7 Kxg7 21. Nde2 Be6 22. g4 Qe5 23. Qh6+ Kg8 24. f4 Qa5 25. g5 1-0

[Event "Hoogeveen Essent op"]
[Site "Hoogeveen"]
[Date "2007.10.12"]
[Round "1"]
[White "Van der Leest, Bert"]
[Black "Hort, Vlastimil"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2199"]
[BlackElo "2483"]
[PlyCount "114"]
[EventDate "2007.10.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 120 Extra"]
[Source "ChessBase"]
[SourceDate "2007.11.01"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Be3 Qc7 7. Bd3 Nf6 8. 0-0 Ne5 9. h3 d6 10. f4 Ned7 11. g4 h6 12. Qe1 Nc5 13. Rd1 Be7 14. Qf2 Nfd7 15. Rfe1 0-0 16. Be2 b5 17. Bf3 Bb7 18. a3 Rfe8 19. h4 Bf8 20. g5 hxg5 21. hxg5 g6 22. f5 exf5 23. exf5 Ne5 24. Bd5 Ng4 25. Qf4 Nxe3 26. Rxe3 Rxe3 27. fxg6 Re7 28. gxf7+ Rxf7 29. g6 Bxd5 30. gxf7+ Qxf7 31. Nxd5 Qxd5 32. Qg4+ Bg7 33. Nf5 Qe5 34. Rd5 Qe1+ 35. Kh2 Qf2+ 36. Kh3 Ne6 37. Ne7+ Kf7 38. Rf5+ Qxf5 39. Nxf5 Rh8+ 40. Kg3 Be5+ 41. Kf3 Rh2 42. Ne3 Rh3+ 43. Kf2 Rh2+ 44. Kg1 Nd4 45. Ng2 Ke7 46. c3 Ne6 47. Qf3 Ng5 48. Qb7+ Kf6 49. Kf2 Rh1 50. Ke3 Rb1 51. Kd3 Rxb2 52. Ne3 Ne6 53. Ng4+ Kg5 54. Qe7+ Kxg4 55. Qxe6+ Kf4 56. Qf7+ Kg5 57. Qg8+ Kf4 1/2-1/2

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.30"]
[Round "9"]
[White "Geragousian, Biaina"]
[Black "Van der Leest, Bert"]
[Result "0-1"]
[ECO "B78"]
[BlackElo "2203"]
[PlyCount "60"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 Nc6 8. Bc4 0-0 9. Qd2 Bd7 10. 0-0-0 Rb8 11. g4 b5 12. Bb3 a5 13. Ndxb5 a4 14. Bxa4 Ne5 15. Qe2 Qa5 16. b3 Rfc8 17. Bd2 Qa6 18. Rdf1 Rc5 19. Nd4 Nc4 20. g5 Nh5 21. Bxd7 Bxd4 22. a4 Qa7 23. Nb5 Rbxb5 24. Bxb5 Nxd2 25. Kxd2 Nf4 26. Qd1 Qa5+ 27. Kc1 Rxb5 28. Qd2 Qa7 29. Re1 e5 30. h4 Rb7 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.29"]
[Round "8"]
[White "Van der Leest, Bert"]
[Black "Boersma, Jan"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "2203"]
[BlackElo "2229"]
[PlyCount "100"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nf6 8. Re1 Nc6 9. Ne4 Nxe4 10. Rxe4 a6 11. Nxd4 Be7 12. Bf4 Qc5 13. Bd3 Bd7 14. Be3 Qa5 15. Nb3 Qc7 16. Nc5 Ne5 17. Nxd7 Nxd7 18. Rc4 Qb8 19. Qh5 b5 20. Rd4 Nf6 21. Qf3 0-0 22. Bg5 Qe5 23. Bxf6 Bxf6 24. c3 Rad8 25. Rxd8 Rxd8 26. a4 Qd6 27. Rd1 Qb6 28. axb5 axb5 29. Ra1 b4 30. Qe4 bxc3 31. bxc3 g6 32. Ra8 Bxc3 33. Rxd8+ Qxd8 34. g3 Qd6 35. Kg2 Bd4 36. Qe2 Kg7 37. Bc4 Qc6+ 38. f3 Qb6 39. Qc2 Qb4 40. Qe2 Qc3 41. Qd3 Qb2+ 42. Qe2 Qc1 43. Qf1 Qe3 44. f4 Qe4+ 45. Qf3 Qc2+ 46. Qe2 Qc1 47. Qf1 Qe3 48. Qe2 Qg1+ 49. Kf3 h5 50. Qg2 Qe3# 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.28"]
[Round "7"]
[White "Otte, Marijn Willem"]
[Black "Van der Leest, Bert"]
[Result "0-1"]
[ECO "B33"]
[BlackElo "2203"]
[PlyCount "66"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Bg5 12. Nc2 0-0 13. Be2 Be6 14. Nce3 g6 15. a4 bxa4 16. 0-0 Bxe3 17. Nxe3 Bb3 18. Qd2 Ne7 19. Bc4 Qb6 20. Bxb3 axb3 21. Rfd1 Rfd8 22. Ng4 d5 23. Qg5 Qe6 24. exd5 Nxd5 25. Qxe5 Qxg4 26. Rxd5 Re8 27. Qd6 Qe2 28. Rdd1 Qxb2 29. Qa3 Qxa3 30. Rxa3 b2 31. Rb1 Re2 32. Rb3 Rd8 33. Rf1 Rc2 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.27"]
[Round "6"]
[White "Van der Leest, Bert"]
[Black "Schiffer, Kai Uwe"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "2203"]
[BlackElo "2378"]
[PlyCount "46"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Qf3 b5 9. Bxf6 gxf6 10. f5 b4 11. Ncb5 axb5 12. fxe6 fxe6 13. Bxb5+ Ke7 14. 0-0 Bg7 15. Qg4 Rg8 16. Kh1 Qc5 17. e5 dxe5 18. Rxf6 exd4 19. Raf1 Bxf6 20. Qxg8 Qxb5 21. Qxh7+ Kd6 22. Rxf6 Rxa2 23. g3 Qb7+ 0-1

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.26"]
[Round "5"]
[White "Hoeksema, Hendrik Pieter"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "2351"]
[BlackElo "2203"]
[PlyCount "81"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nc2 Nc6 7. g3 0-0 8. Bg2 d6 9. 0-0 Qa5 10. e4 Bg4 11. f3 Be6 12. Nd5 Bxd5 13. exd5 Nb4 14. Ne3 b5 15. a3 Na6 16. b4 Qb6 17. cxb5 Nc7 18. a4 Nfxd5 19. Ra3 Nxb4 20. Kh1 d5 21. Bd2 Qd6 22. Qb3 a5 23. Rb1 Bd4 24. f4 e6 25. Qd1 Bc5 26. Rab3 Rab8 27. Nc2 Nxc2 28. Qxc2 Bb6 29. Rc3 d4 30. Rc6 Qd7 31. Rxb6 Rxb6 32. Bxa5 d3 33. Qc4 d2 34. Rd1 Nd5 35. Bxb6 Rc8 36. Qd4 Nxb6 37. Qxb6 Rc1 38. Qg1 Rxd1 39. Qxd1 Qd4 40. Bf3 Qf2 41. b6 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.24"]
[Round "4"]
[White "Van der Leest, Bert"]
[Black "Van Beek, Alexander"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2203"]
[BlackElo "2276"]
[PlyCount "105"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. b4 Bb6 7. a4 a5 8. b5 Ne7 9. Nbd2 Ng6 10. 0-0 h6 11. Bb3 Bg4 12. h3 Bh5 13. g4 Nxg4 14. hxg4 Bxg4 15. Qe1 Nf4 16. d4 Qf6 17. Kh1 Qg6 18. Rg1 exd4 19. Nh2 h5 20. Nc4 Nd3 21. Qf1 Nxc1 22. Rxc1 Bc5 23. f3 dxc3 24. Rg2 Bh3 25. Rxg6 Bxf1 26. Rxg7 Kf8 27. Rg3 Bxc4 28. Bxc4 Bd4 29. f4 Rg8 30. Rxg8+ Kxg8 31. Nf3 Be3 32. Rxc3 Bxf4 33. Bd5 c6 34. bxc6 bxc6 35. Rxc6 Ra7 36. Kg2 Kg7 37. Nd4 Kf6 38. Nb5 Rd7 39. Kf3 Kg5 40. Rc8 Bd2 41. Bc6 Re7 42. Nxd6 Bb4 43. Rg8+ Kf6 44. Nc4 Rc7 45. Bd5 Bc3 46. Ra8 Kg5 47. Nd6 Bb4 48. Rg8+ Kh4 49. Nxf7 Rc3+ 50. Kf4 Ra3 51. Rg2 Kh3 52. Rc2 Be7 53. Be6+ 1-0

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.23"]
[Round "3"]
[White "Florath, Patrick"]
[Black "Van der Leest, Bert"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "2304"]
[BlackElo "2203"]
[PlyCount "48"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Bc4 Bg7 7. 0-0 0-0 8. h3 Nc6 9. Be3 Nxe4 10. Nxe4 d5 11. Nxc6 bxc6 12. Bd3 dxe4 13. Bxe4 Ba6 14. Qxd8 Rfxd8 15. Rfd1 Bxb2 16. Rxd8+ Rxd8 17. Rb1 Bc3 18. Bxa7 Bb5 19. Rb3 Rd1+ 20. Kh2 Be5+ 21. g3 Ra1 22. Bc5 Rxa2 23. Bxe7 Ra4 24. Rb4 Rxb4 1/2-1/2

[Event "Groningen Harmonie op-A"]
[Site "Groningen"]
[Date "2003.12.22"]
[Round "2"]
[White "Van der Leest, Bert"]
[Black "Wielenga, Wiebe"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2203"]
[PlyCount "99"]
[EventDate "2003.12.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "NED"]
[SourceTitle "CBM 097 Extra"]
[Source "ChessBase"]
[SourceDate "2004.01.13"]
[SourceVersion "1"]
[SourceVersionDate "2004.01.13"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. a4 g6 7. 0-0 Bg7 8. b4 Qe7 9. Re1 0-0 10. Nbd2 Nd8 11. d4 Re8 12. Bb3 Nh7 13. dxe5 dxe5 14. Nc4 Be6 15. Ne3 Bxb3 16. Qxb3 c6 17. Nc4 Qe6 18. Be3 f6 19. Rad1 Bf8 20. Rd2 Nf7 21. Red1 Red8 22. Rxd8 Nxd8 23. Na5 Qxb3 24. Nxb3 Ne6 25. Rd7 b6 26. Nh4 g5 27. Nf5 c5 28. bxc5 bxc5 29. Kf1 Rb8 30. Nd2 a6 31. Ra7 Rb6 32. g3 h5 33. a5 Rc6 34. Nc4 Nd4 35. Rb7 Nb5 36. Bd2 Nc7 37. h4 g4 38. Ke2 Kf7 39. Nb6 Ke6 40. c4 Be7 41. Nd5 Bd8 42. Bh6 Kd7 43. Nb6+ Ke8 44. Ng7+ Kf7 45. Nd5 Nf8 46. Nxh5 Nfe6 47. Be3 Nd4+ 48. Kd3 Kg6 49. Nhxf6 Bxf6 50. Rxc7 1-0

[Event "Groningen SO ON op-A"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "6"]
[White "Markus, John Raymond"]
[Black "Van der Leest, Bert"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2238"]
[PlyCount "66"]
[EventDate "2000.12.??"]
[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. Nf3 g6 3. Nc3 d6 4. e4 c6 5. a4 Bg7 6. Be2 Bg4 7. 0-0 0-0 8. Be3 Bxf3 9. Bxf3 Nbd7 10. Qd2 e5 11. d5 cxd5 12. Nxd5 Nxd5 13. Qxd5 Qc7 14. a5 Rfd8 15. c4 Nc5 16. b4 Ne6 17. Rac1 h5 18. h3 Kh7 19. Qd2 b6 20. axb6 axb6 21. Be2 Ra3 22. Qb2 Rda8 23. Ra1 Rxa1 24. Rxa1 Rxa1+ 25. Qxa1 Bh6 26. Bxh6 Kxh6 27. Qa8 Kg7 28. Kh2 Nd4 29. Bd3 Qe7 30. Qb8 Qf6 31. Kg1 Qf4 32. Qxd6 Qc1+ 33. Kh2 Qf4+ 1/2-1/2

[Event "Groningen SO ON op-A"]
[Site "Groningen"]
[Date "2000.??.??"]
[Round "7"]
[White "Van der Leest, Bert"]
[Black "Vink, Nico"]
[Result "0-1"]
[ECO "B86"]
[BlackElo "2296"]
[PlyCount "52"]
[EventDate "2000.12.??"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. f4 Nc5 9. e5 dxe5 10. fxe5 Nxb3 11. axb3 Nd5 12. 0-0 Nxc3 13. bxc3 Qd5 14. Qe2 Bc5 15. Rf4 b5 16. Rg4 Bb7 17. Bg5 h6 18. Bh4 h5 19. Rf4 Rg8 20. Bg5 f6 21. exf6 gxf6 22. Qxh5+ Kd7 23. Qf7+ Kd6 24. Re4 Qxe4 25. Bf4+ Qxf4 26. Qxe6+ Kc7 0-1

[Event "Groningen op-B"]
[Site "Groningen"]
[Date "1995.??.??"]
[Round "2"]
[White "Wiersma, Tjalling"]
[Black "Van der Leest, Bert"]
[Result "1-0"]
[ECO "A59"]
[PlyCount "59"]
[EventDate "1995.??.??"]
[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 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 Bxf1 8. Kxf1 g6 9. g3 Bg7 10. Kg2 0-0 11. Nf3 Nbd7 12. Re1 Ng4 13. Nd2 Nge5 14. Qe2 Nb6 15. f4 Ned7 16. a4 Ra7 17. a5 Qa8 18. a6 Bxc3 19. bxc3 f5 20. c4 Rf7 21. exf5 gxf5 22. Nf3 Rxa6 23. Bb2 h6 24. Nh4 Ra2 25. Kg1 Qa4 26. Nxf5 Rxa1 27. Bxa1 Qxc4 28. Qg4+ Kf8 29. Bg7+ Kg8 30. Nxh6+ 1-0

[Event "Groningen op2"]
[Site "Groningen"]
[Date "1994.??.??"]
[Round "2"]
[White "Van der Leest, Bert"]
[Black "Cobben, Jan Maarten"]
[Result "1-0"]
[ECO "C55"]
[BlackElo "2135"]
[PlyCount "81"]
[EventDate "1994.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 5. exd5 Nxd5 6. c3 Be7 7. 0-0 Bg4 8. Re1 0-0 9. h3 Bh5 10. g4 Bg6 11. Nxe5 Nxe5 12. Rxe5 c6 13. Qf3 Bd6 14. Re1 Qh4 15. Bxd5 cxd5 16. Be3 Bxd3 17. Qxd5 Rad8 18. Qg2 Bb5 19. Nd2 Bc6 20. f3 Bg3 21. Re2 Rfe8 22. Ne4 Bxe4 23. fxe4 Rd3 24. Bxa7 Bf4 25. Bf2 Bg3 26. Re3 Bxf2+ 27. Qxf2 Qxf2+ 28. Kxf2 Rd2+ 29. Re2 Rxe2+ 30. Kxe2 Rxe4+ 31. Kf3 Re6 32. Rd1 g5 33. Rd5 f6 34. Rd8+ Kg7 35. Rd7+ Kg6 36. Rxb7 h5 37. a4 Re1 38. Rb3 h4 39. a5 Rg1 40. a6 Rg3+ 41. Kf2 1-0

[Event "Groningen op2"]
[Site "Groningen"]
[Date "1994.??.??"]
[Round "4"]
[White "Van der Leest, Bert"]
[Black "Oosterom, Erik"]
[Result "0-1"]
[ECO "B57"]
[PlyCount "73"]
[EventDate "1994.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6 7. Nxc6 bxc6 8. Bb3 e6 9. 0-0 Be7 10. Re1 e5 11. Be3 Qc7 12. h3 0-0 13. g4 h6 14. Qf3 Nh7 15. Qg2 Be6 16. Ne2 a5 17. f4 exf4 18. Nxf4 Bxb3 19. axb3 Bf6 20. Nd3 Rfe8 21. Bf2 Ng5 22. Kh1 d5 23. exd5 cxd5 24. Bg3 Qc6 25. Rxe8+ Qxe8 26. Qxd5 Nxh3 27. Re1 Qc8 28. Be5 Ra6 29. Qg2 Ng5 30. Rf1 Bxe5 31. Nxe5 Re6 32. Nf3 Re4 33. Nxg5 Rxg4 34. Qf2 Rxg5 35. Qxf7+ Kh7 36. Rf2 Qg4 37. Qc4 0-1

[Event "Groningen op2"]
[Site "Groningen"]
[Date "1989.??.??"]
[Round "2"]
[White "Van der Leest, Bert"]
[Black "Vogel, Jaap"]
[Result "0-1"]
[ECO "C15"]
[BlackElo "2280"]
[PlyCount "58"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Bd2 dxe4 5. Qg4 Nf6 6. Qxg7 Rg8 7. Qh6 Nc6 8. Bb5 Rg6 9. Qh4 Bxc3 10. bxc3 Qd5 11. Bxc6+ bxc6 12. Ne2 e3 13. Bxe3 Ba6 14. Nf4 Qc4 15. 0-0-0 Nd5 16. Nxg6 Qxc3 17. Qxh7 0-0-0 18. Qxf7 Kb7 19. Qxe6 Rd6 20. Qg8 Bc4 21. Rhe1 Nb4 22. Qxc4 Qxc4 23. Rd2 Nxa2+ 24. Kd1 Nc3+ 25. Kc1 Rxg6 26. g3 c5 27. Rd3 Ra6 28. Kd2 Ne4+ 29. Kd1 Ra1+ 0-1

[Event "Gasunie-open A"]
[Site "Groningen"]
[Date "1986.12.??"]
[Round "?"]
[White "Van der Leest, Bert"]
[Black "Hoeksema, Hendrik Pieter"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "70"]
[EventDate "1986.12.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "NED"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. 0-0 b6 8. Re1 Bb7 9. e5 Nd7 10. Nf1 g5 11. h3 h6 12. c3 Qc7 13. Qe2 0-0-0 14. a3 Rde8 15. b4 f6 16. exf6 Bxf6 17. Bd2 e5 18. N3h2 Ne7 19. Ne3 Bg7 20. Rab1 e4 21. dxe4 dxe4 22. Nc4 Nd5 23. Bxe4 N7f6 24. Bf5+ Kb8 25. Qd3 Rd8 26. Qc2 Ne7 27. Bd3 Qc6 28. f3 Qc7 29. Kg2 Rhf8 30. Be2 Nh5 31. g4 Qg3+ 32. Kh1 Qxh3 33. gxh5 Rxf3 34. Bxf3 Bxf3+ 35. Kg1 Qg2# 0-1

