[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.22"]
[Round "9.77"]
[White "Bartels, Holger"]
[Black "Leissner, Boris"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2131"]
[BlackElo "1968"]
[PlyCount "80"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bg4 7. 0-0 Be7 8. Re1 Nc6 9. c4 Nf6 10. cxd5 Nxd5 11. Nc3 0-0 12. Nxd5 Qxd5 13. Be4 Qd6 14. Bxc6 bxc6 15. h3 Be6 16. Bg5 Bxg5 17. Nxg5 Bd5 18. Qh5 h6 19. Nf3 Rab8 20. b3 Rfe8 21. Rac1 Qb4 22. Re5 Re7 23. Rxe7 Qxe7 24. Ne5 Qd6 25. Qf5 f6 26. Ng6 Re8 27. Nf4 Be4 28. Qg4 f5 29. Qh5 Rd8 30. Ng6 Qf6 31. Ne5 Bd5 32. Qe2 Kh7 33. Qe3 Be4 34. Rd1 c5 35. f3 cxd4 36. Rxd4 Qb6 37. fxe4 Rxd4 38. Kh2 Rxe4 39. Qc3 Qd6 40. g3 Qxe5 0-1

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.21"]
[Round "8.92"]
[White "Leissner, Boris"]
[Black "Fairbairn, Stephen"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1968"]
[BlackElo "2166"]
[PlyCount "101"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 Qb6 10. Nd2 e6 11. Ngf3 Bb5 12. 0-0 Bxd3 13. Qxd3 Be7 14. a4 0-0 15. Qb5 Rfc8 16. Ne5 Nc6 17. Bg5 Qc7 18. Qe2 Nd7 19. Bxe7 Nxe7 20. f4 Nf6 21. g4 g6 22. Rae1 Nc6 23. Kh1 Re8 24. Qg2 Rad8 25. Re3 Kg7 26. Qh3 a6 27. g5 Nh5 28. Ng4 Qd6 29. Nf6 Nxf6 30. Qh6+ Kg8 31. gxf6 Qf8 32. Qh4 h5 33. Rg1 Kh7 34. Rh3 Qh6 35. Nf3 Rd7 36. Ng5+ Kh8 37. Qg3 Rg8 38. Qf3 Nd8 39. Qe2 Re8 40. Rh4 Nc6 41. Nf3 Rg8 42. Rg3 Rc8 43. Rg5 Rdc7 44. Ne1 Kh7 45. Qd3 Kh8 46. Qh3 Nd8 47. Rgxh5 gxh5 48. Rxh5 Qxh5 49. Qxh5+ Kg8 50. Nf3 Kf8 51. Qh8# 1-0

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.20"]
[Round "7.85"]
[White "Lampe, Joerg"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2123"]
[BlackElo "1968"]
[PlyCount "81"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 0-0 5. 0-0 Nc6 6. d3 h6 7. Nd5 Ba5 8. c3 d6 9. b4 Bb6 10. a4 a5 11. Nxb6 cxb6 12. b5 Ne7 13. Qb3 Bg4 14. Nd2 d5 15. exd5 Nexd5 16. Ba3 Re8 17. Ne4 Be6 18. Rad1 Nf4 19. Nd6 Bxc4 20. dxc4 Qd7 21. Nxe8 Qg4 22. g3 Qh3 23. Nxf6+ gxf6 24. gxf4 Qg4+ 25. Kh1 Qf3+ 26. Kg1 Kh8 27. Rfe1 exf4 28. Qc2 Qg4+ 29. Kf1 Rg8 30. Qe4 f5 31. Qe5+ Kh7 32. Rd7 Rg7 33. Bf8 Qh3+ 34. Ke2 Qh5+ 35. Kd2 Rg2 36. Qf6 Rxf2+ 37. Kc1 Rg2 38. Rxf7+ Kg8 39. Rg7+ Kh8 40. Rxg2+ Kh7 41. Qg7# 1-0

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.19"]
[Round "6"]
[White "Leissner, Boris"]
[Black "Gronnestad, Anita"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1968"]
[BlackElo "1700"]
[PlyCount "83"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bxd7+ Bxd7 6. d4 cxd4 7. Qxd4 e5 8. Qd3 Rc8 9. Nc3 Nf6 10. Bg5 Be6 11. Rfd1 Qb6 12. Nd5 Bxd5 13. exd5 Qxb2 14. Bxf6 gxf6 15. Rab1 Qxc2 16. Qxc2 Rxc2 17. Rxb7 Be7 18. Nh4 Bd8 19. Nf5 Bc7 20. Ra7 Kd7 21. Rxa6 Rb8 22. Ne3 Rc5 23. Ra7 f5 24. g3 f4 25. Ng4 fxg3 26. hxg3 Ke7 27. Nxe5 dxe5 28. d6+ Ke6 29. Rxc7 Ra5 30. Rd2 Rd8 31. d7 f5 32. Kg2 e4 33. Rc6+ Ke7 34. Rh6 Ra7 35. Rxh7+ Ke6 36. Kh3 Ra3 37. Kh4 e3 38. Re2 Ra4+ 39. Kh5 Rg8 40. Rxe3+ Kf6 41. Rh6+ Kf7 42. Ree6 1-0

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.18"]
[Round "5.77"]
[White "Lohou, Stephane"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "C33"]
[WhiteElo "2165"]
[BlackElo "1968"]
[PlyCount "23"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Bc4 Nf6 4. Nc3 Nxe4 5. Qe2 Qh4+ 6. Kf1 d5 7. Bxd5 Bg4 8. Qxe4+ Kd8 9. Nf3 Bxf3 10. Qxf3 Bc5 11. d4 Re8 12. Bxf4 1-0

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.17"]
[Round "3.76"]
[White "Kluth, Carsten"]
[Black "Leissner, Boris"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2180"]
[BlackElo "1968"]
[PlyCount "93"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 f5 2. e3 Nf6 3. Bd3 d5 4. c4 c6 5. Nf3 g6 6. 0-0 Be6 7. b3 Nbd7 8. Nc3 Bg7 9. Ng5 Bg8 10. f4 Ne4 11. Ngxe4 dxe4 12. Be2 a5 13. Bb2 Bf7 14. g4 h5 15. gxf5 gxf5 16. Rf2 Nf6 17. Rg2 Ng4 18. Qd2 Bf6 19. Rd1 Bh4 20. d5 Bf2+ 21. Rxf2 Nxf2 22. Kxf2 e5 23. dxe6 Qh4+ 24. Kg1 Bxe6 25. Qe1 Rg8+ 26. Kh1 Qh3 27. Qf2 Kf7 28. Bc1 Kf6 29. Rg1 Rxg1+ 30. Qxg1 Rg8 31. Qf1 Qh4 32. Bd2 Ke7 33. Na4 Bf7 34. Bxa5 Qf6 35. Bc3 Qg6 36. Bb4+ Ke8 37. Bc5 h4 38. h3 Qh6 39. Qf2 Bh5 40. Nc3 Rg3 41. Kh2 Bf3 42. Bxf3 exf3 43. Nd1 Qg6 44. Kh1 Rg2 45. Qxf3 Rg1+ 46. Kh2 Re1 47. Qg2 1/2-1/2

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.17"]
[Round "4.78"]
[White "Leissner, Boris"]
[Black "Porth, Hartmut"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1968"]
[BlackElo "2198"]
[PlyCount "97"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Qc7 6. Bd3 Nf6 7. Bg5 Be7 8. N1d2 0-0 9. f4 d6 10. Nf3 Nc6 11. Qe2 Nb4 12. 0-0 Nxd3 13. cxd3 b5 14. Kh1 Bb7 15. Nbd4 Qd7 16. Nd2 h6 17. Bh4 Nxe4 18. Nxe4 Bxh4 19. Qg4 Bxe4 20. dxe4 Bf6 21. Rad1 Bxd4 22. Rxd4 Rac8 23. f5 exf5 24. exf5 Rc5 25. b4 Re5 26. Qf4 f6 27. h3 Rc8 28. Qf3 Qe7 29. Kh2 d5 30. Rxd5 Rc4 31. Rfd1 Qc7 32. Rd8+ Re8+ 33. R8d6 Rd8 34. Qd5+ Kf8 35. Kg1 Qxd6 36. Qxd6+ Rxd6 37. Rxd6 Rxb4 38. Ra6 Ra4 39. Rxa4 bxa4 40. Kf1 Ke7 41. Kf2 Kd6 42. Ke3 Ke5 43. g4 a3 44. Kf3 Kd4 45. Kf2 Ke5 46. Ke3 h5 47. Kf3 hxg4+ 48. Kxg4 Ke4 49. Kh5 1/2-1/2

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.16"]
[Round "2"]
[White "Leissner, Boris"]
[Black "Marduhajev, Alexander"]
[Result "1-0"]
[ECO "A02"]
[WhiteElo "1968"]
[BlackElo "1585"]
[PlyCount "57"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. f4 e6 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. d3 d5 6. c3 Bd6 7. 0-0 Nbd7 8. Qc2 0-0 9. d4 c5 10. e3 Rc8 11. Nbd2 b5 12. Ne5 Nb6 13. Qd3 cxd4 14. exd4 b4 15. cxb4 Bxb4 16. f5 exf5 17. Rxf5 Rc7 18. a3 Qc8 19. axb4 Rxc1+ 20. Rf1 Rxa1 21. Rxa1 Qb8 22. Nb3 Ne4 23. Nc5 Nf6 24. Qa3 Nc4 25. Qxa7 Qxa7 26. Rxa7 Ba8 27. Nxc4 dxc4 28. Rxa8 Rxa8 29. Bxa8 1-0

[Event "Wichern op 5th"]
[Site "Hamburg"]
[Date "1999.10.15"]
[Round "1.47"]
[White "Joecks, Christian"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2397"]
[BlackElo "1968"]
[PlyCount "37"]
[EventDate "1999.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 Nxe5 7. dxe5 Bb4 8. 0-0 Nxc3 9. bxc3 Bxc3 10. Rb1 0-0 11. Rb3 Ba5 12. Qh5 g6 13. Qh6 f6 14. Bxg6 Qe7 15. Bxh7+ Qxh7 16. Rg3+ Bg4 17. Rxg4+ Kh8 18. Qf4 Qe4 19. Qg3 1-0

[Event "Porz op 29th"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "8"]
[White "Fassbender, Leopold"]
[Black "Leissner, Boris"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1800"]
[BlackElo "1930"]
[PlyCount "124"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. h3 d5 4. Bf4 e6 5. Nbd2 Nbd7 6. c3 Be7 7. e3 Ne4 8. Be2 Ndf6 9. Be5 Bd7 10. a4 b6 11. g3 a5 12. 0-0 0-0 13. Kg2 c6 14. Nh2 b5 15. f3 Nd6 16. b3 Be8 17. g4 bxa4 18. bxa4 fxg4 19. hxg4 Bg6 20. Rh1 Rb8 21. g5 Nfe8 22. f4 Rb2 23. Nhf1 Bxg5 24. Rh2 Bh6 25. Ng3 Nf6 26. Kg1 Nde4 27. Ndxe4 Nxe4 28. Nxe4 Bxe4 29. Qe1 Qe8 30. Qg3 Qg6 31. Qxg6 Bxg6 32. c4 Be4 33. Bg4 Rxh2 34. Kxh2 Kf7 35. cxd5 cxd5 36. Rc1 Re8 37. Rc5 Bd3 38. Rxa5 Rc8 39. Ra7+ Kg6 40. Bxe6 Rc2+ 41. Kg3 Be4 42. Bg4 Rg2+ 43. Kh3 Rg1 44. Ra6+ Kf7 45. Be6+ Ke7 46. f5 Bxe3 47. Ra7+ Kd8 48. Bc7+ Ke8 49. Bf7+ Kxf7 50. Bh2+ Kf6 51. Bxg1 Bxg1 52. Kg4 Bxf5+ 53. Kf4 Bxd4 54. Ra6+ Be6 55. Rc6 g5+ 56. Kf3 h5 57. a5 Ke5 58. a6 Bg4+ 59. Kg2 Be2 60. Rg6 Kf4 61. Rd6 Kg4 62. Kh1 Kg3 0-1

[Event "Porz op 29th"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "2"]
[White "Giese, Reinhard"]
[Black "Leissner, Boris"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2170"]
[BlackElo "1930"]
[PlyCount "96"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. e3 Bg7 4. Bd3 Nf6 5. Nc3 d5 6. Bxf6 exf6 7. Qf3 c6 8. h4 Qd6 9. Nge2 Be6 10. h5 g5 11. h6 Bf8 12. Bxf5 Qd7 13. Ng3 Bxf5 14. Nxf5 Rg8 15. g4 Na6 16. 0-0-0 0-0-0 17. e4 Nc7 18. exd5 cxd5 19. Rde1 Ne6 20. Re3 Nf4 21. Rhe1 Ng6 22. Re6 Nh4 23. Nxh4 gxh4 24. Rxf6 Qxg4 25. Qxg4+ Rxg4 26. Nxd5 Rxd4 27. Ne3 R4d6 28. Rxd6 Rxd6 29. Nf5 Bxh6+ 30. Nxh6 Rxh6 31. Rh1 Kd7 32. Kd2 Kd6 33. Ke3 Ke5 34. Rh3 Kf5 35. Kf3 Kg5 36. Kg2 Kg4 37. c4 Rf6 38. Rb3 h3+ 39. Rxh3 Rxf2+ 40. Kxf2 Kxh3 41. Kf3 Kh4 42. Kf4 Kh3 43. c5 Kg2 44. Kg4 h5+ 45. Kxh5 Kf3 46. Kg5 Ke4 47. Kf6 Kd5 48. b4 a5 1/2-1/2

[Event "Porz op 29th"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "6"]
[White "Goy, Udo"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2210"]
[BlackElo "1930"]
[PlyCount "57"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 f5 2. h3 Nf6 3. g4 d5 4. Nc3 c5 5. dxc5 fxg4 6. Bg2 d4 7. Ne4 Nc6 8. Qd3 Nxe4 9. Qxe4 Qd7 10. Bf4 Qf5 11. hxg4 Qf6 12. g5 Qf5 13. g6 h6 14. 0-0-0 Qxc5 15. Qd5 e6 16. Qe4 Qa5 17. Kb1 e5 18. Rh5 Be6 19. b3 Bd6 20. Bd2 Qc7 21. f4 0-0-0 22. fxe5 Nxe5 23. Bf4 Qc3 24. Bxe5 Qc7 25. Bxd4 Rhe8 26. Qd3 Bb4 27. Rb5 Bd6 28. Rxb7 Qa5 29. Rxa7 1-0

[Event "NRW-chT 9293 U18"]
[Site "Germany"]
[Date "1993.??.??"]
[Round "?"]
[White "Lanius, Daniel"]
[Black "Leissner, Boris"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "52"]
[EventDate "1992.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. d3 Nc6 6. Be2 a6 7. 0-0 b5 8. Bg5 Bb7 9. Re1 h6 10. Bh4 Qd7 11. Bf1 e6 12. a3 Bc5 13. Ne4 Be7 14. Bg3 0-0 15. Nxf6+ Bxf6 16. c3 a5 17. d4 b4 18. Ne5 Qd5 19. Nd3 bxc3 20. bxc3 Ne7 21. Nc5 Ng6 22. Nxb7 Qxb7 23. Bd3 Ne7 24. Be4 c6 25. Rb1 Qa6 26. Bd3 Qa7 1/2-1/2

[Event "Porz op 29th"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "3"]
[White "Leissner, Boris"]
[Black "Fuchs, Andreas"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1925"]
[BlackElo "2145"]
[PlyCount "70"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bg5 h6 8. Bh4 g5 9. Bg3 Bg7 10. Be2 h5 11. h4 gxh4 12. Bxh4 Nc6 13. Nf5 Bxf5 14. exf5 Qa5 15. Bg3 Qxf5 16. Nd5 Rc8 17. c3 Be5 18. Bh4 e6 19. Bd3 Nxf2 20. Bxf2 Qg5 21. Ne3 d5 22. Rh4 Bg3 23. Nf5 exf5 24. Rh3 Qe3+ 25. Qe2 Bxf2+ 26. Kf1 Qxe2+ 27. Kxe2 Bb6 28. Bxf5 Rc7 29. Bg4 Re7+ 30. Kd2 h4 31. Rf1 Ne5 32. Be2 Rg8 33. Rh2 Rg3 34. Rf5 Nc4+ 35. Bxc4 dxc4 0-1

[Event "Porz op 29th"]
[Site "Cologne"]
[Date "1993.??.??"]
[Round "9"]
[White "Leissner, Boris"]
[Black "Schneider, Igor"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1930"]
[BlackElo "2220"]
[PlyCount "138"]
[EventDate "1993.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. c3 Nge7 5. d4 a6 6. Bxc6 Nxc6 7. d5 Ne7 8. 0-0 Ng6 9. a4 b6 10. Qb3 d6 11. Na3 Be7 12. Nc4 Rb8 13. a5 exd5 14. exd5 b5 15. Nb6 Bg4 16. Nd2 0-0 17. Qc2 Bg5 18. h3 Bxd2 19. Bxd2 Bd7 20. b3 Be8 21. Rfe1 f6 22. f4 Bf7 23. c4 b4 24. f5 Ne5 25. Bf4 Rb7 26. Re2 Re7 27. Rae1 g6 28. Bxe5 Rxe5 29. Rxe5 fxe5 30. Rf1 Be8 31. g4 Qg5 32. Kh1 h5 33. Qe4 hxg4 34. Qxg4 Qxg4 35. hxg4 gxf5 36. gxf5 Bh5 37. Nd7 Rf7 38. Nb8 Kg7 39. f6+ Kf8 40. Nc6 e4 41. Nd8 Bf3+ 42. Kh2 Rxf6 43. Ne6+ Ke7 44. Ng5 Bh5 45. Re1 Rf2+ 46. Kg3 Re2 47. Rh1 Bg6 48. Rh8 Re3+ 49. Kf4 Rxb3 50. Nxe4 Rb1 51. Rh6 Rf1+ 52. Kg5 Bxe4 53. Re6+ Kd7 54. Rxe4 Ra1 55. Kf6 Rxa5 56. Re7+ Kc8 57. Ke6 b3 58. Kxd6 b2 59. Kc6 Kd8 60. Rb7 Rb5 61. cxb5 b1Q 62. Rb8+ Ke7 63. d6+ Ke6 64. Re8+ Kf7 65. Re7+ Kf6 66. bxa6 c4 67. Re3 Qa1 68. Kb7 Qb2+ 69. Kc8 Qb6 0-1

[Event "NRW-chT 9293 U18"]
[Site "Germany"]
[Date "1993.??.??"]
[Round "?"]
[White "Leissner, Boris"]
[Black "Wanning"]
[Result "1-0"]
[ECO "C27"]
[PlyCount "41"]
[EventDate "1992.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nc3 d6 5. Bg5 h6 6. Bh4 g5 7. Bg3 Ng4 8. h4 Qf6 9. Nd5 Bxf2+ 10. Ke2 Qd8 11. Bxf2 Nf6 12. Ne3 Nh5 13. Kd2 Nf4 14. hxg5 Qxg5 15. Bh4 Qg6 16. g3 Nh5 17. Qf3 Rg8 18. Ne2 Nc6 19. Raf1 Rg7 20. c3 Bg4 21. Nxg4 1-0

[Event "NRW-chT 9293 U18"]
[Site "Germany"]
[Date "1993.??.??"]
[Round "?"]
[White "Mielke, Moritz"]
[Black "Leissner, Boris"]
[Result "1/2-1/2"]
[ECO "A04"]
[PlyCount "84"]
[EventDate "1992.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 fxe4 3. Ng5 e5 4. d3 Nf6 5. dxe4 h6 6. Nf3 Bc5 7. Bc4 Nc6 8. 0-0 d6 9. c3 Bg4 10. b4 Bb6 11. a4 a5 12. Qc2 Nxe4 13. Bf7+ Kd7 14. b5 Ne7 15. h3 Nc5 16. Qd1 Bxf3 17. Qxf3 Kc8 18. Qg4+ Kb8 19. Qxg7 Nd3 20. Ra2 Ka7 21. Na3 d5 22. c4 d4 23. Bd2 Qd6 24. Nc2 e4 25. Ne1 Nxe1 26. Rxe1 e3 27. fxe3 dxe3 28. Bc3 e2+ 29. Kh1 Nf5 30. Qe5 Qd3 31. c5 Rhf8 32. cxb6+ cxb6 33. Bh5 Ng3+ 34. Kh2 Nxh5 35. Qxh5 Qxc3 36. Raxe2 Rf6 37. Qe5 Qxe5+ 38. Rxe5 Rg8 39. R1e2 Rd6 40. Re6 Rd4 41. R6e4 Rd3 42. R4e3 Rd4 1/2-1/2

[Event "NRW-chT 9293 U18"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Leissner, Boris"]
[Black "Reinoehl, Christian"]
[Result "0-1"]
[ECO "C28"]
[PlyCount "78"]
[EventDate "1992.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Nc3 Nf6 4. d3 Na5 5. f4 Nxc4 6. dxc4 Bb4 7. fxe5 Nxe4 8. Qf3 Bxc3+ 9. bxc3 Nc5 10. Qg3 Ne6 11. Nf3 d6 12. 0-0 dxe5 13. Nxe5 0-0 14. Be3 Qe7 15. Rad1 f6 16. Nd3 a5 17. Rfe1 Qf7 18. Nc1 Bd7 19. Rd2 Bc6 20. Rde2 Rfe8 21. Rf2 Qg6 22. Qh4 Ng5 23. Nd3 Nf3+ 24. Rxf3 Bxf3 25. Nf4 Qg4 26. Qf2 Bc6 27. h3 Qd7 28. Qg3 Qf7 29. c5 Qxa2 30. Rf1 Qf7 31. Bd4 Re7 32. c4 Kh8 33. Qg4 Re4 34. Qd1 Qxc4 35. c3 Kg8 36. Nh5 a4 37. Nxg7 Qe2 38. Qxe2 Rxe2 39. Rxf6 Rxg2+ 0-1

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Poetsch, Klaus"]
[Black "Leissner, Boris"]
[Result "0-1"]
[ECO "A80"]
[PlyCount "60"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 d5 3. e3 Nf6 4. Nf3 Be6 5. Be2 Bf7 6. Ne5 Nbd7 7. Nxf7 Kxf7 8. 0-0 e6 9. f4 Nb6 10. b3 a5 11. a4 Bb4 12. Qd3 Qe7 13. Bf3 h6 14. Na2 Bd6 15. c4 c5 16. Ba3 g5 17. dxc5 Bxc5 18. Bxc5 Qxc5 19. Qd4 Qc7 20. cxd5 Nbxd5 21. Rac1 Qe7 22. Nc3 Rhd8 23. Nxd5 Nxd5 24. Bh5+ Kg8 25. e4 Nxf4 26. Qf2 Nxh5 27. exf5 exf5 28. Qxf5 Nf4 29. g3 Rf8 30. Qg4 Ne2+ 0-1

[Event "NRW-chT 9293 U18"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Reinhardt, Ingo"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "51"]
[EventDate "1992.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 0-0 5. d3 d5 6. exd5 Nxd5 7. Bd2 Nxc3 8. bxc3 Bd6 9. h3 Nd7 10. 0-0 h6 11. Re1 Re8 12. Be3 Nb6 13. Bb3 c6 14. Nh2 Qh4 15. Qf3 Be6 16. Nf1 Nd5 17. Bd2 Re7 18. Ng3 g6 19. Ne4 Bc7 20. Bxd5 cxd5 21. Nf6+ Kg7 22. Nxd5 Bxd5 23. Qxd5 Bb6 24. Qf3 Rc8 25. Re4 Qf6 26. Bxh6+ 1-0

[Event "NRW-chT 9293 U18"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Schlecht, Daniel"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "A81"]
[PlyCount "70"]
[EventDate "1992.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nh3 Bg7 5. Nf4 c6 6. h4 Ne4 7. h5 Qa5+ 8. c3 e5 9. dxe5 g5 10. Nd3 h6 11. Na3 Na6 12. Nc4 Qd5 13. Nd6+ Kf8 14. Nxf5 Bxe5 15. Ne3 Qa5 16. Bxe4 Bf6 17. 0-0 d6 18. Qb3 Rg8 19. Bg6 Rg7 20. Ng2 Re7 21. Be3 Be6 22. Qc2 Bg4 23. f3 Bh3 24. Bf2 c5 25. g4 c4 26. Nc1 Be5 27. Bd4 Kg8 28. e4 Nc7 29. Bf5 Rf8 30. Ne2 Ne6 31. Bxe6+ Rxe6 32. Bxe5 Qxe5 33. Nd4 Re7 34. Nf5 d5 35. Nxe7+ Qxe7 1-0

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1992.??.??"]
[Round "?"]
[White "Schoenenberg"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "A83"]
[PlyCount "105"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. e4 fxe4 4. Bg5 g6 5. Bc4 c6 6. f3 d5 7. Bb3 exf3 8. Nxf3 Bg7 9. h3 Bf5 10. g4 Be4 11. Qe2 Qc7 12. 0-0-0 Nbd7 13. Rhe1 h6 14. Bxf6 Nxf6 15. Nd2 0-0-0 16. Ncxe4 dxe4 17. Be6+ Kb8 18. Nxe4 Nd5 19. Bxd5 Rxd5 20. Nc5 Bf6 21. Qe4 Qd6 22. Ne6 g5 23. Rd3 Qb4 24. a3 Qc4 25. Kb1 Rd6 26. b3 Qd5 27. c4 Qxe4 28. Rxe4 h5 29. h4 gxh4 30. g5 Rxe6 31. Rxe6 Bxg5 32. d5 Rd8 33. Re5 Bf6 34. Rxh5 Kc7 35. Kc2 Rg8 36. Rh7 Rg2+ 37. Kd1 cxd5 38. cxd5 Kd6 39. Rh5 a6 40. Re3 Rg3 41. Kd2 Rxe3 42. Kxe3 Kc5 43. Kd3 a5 44. d6+ Kxd6 45. Rxa5 Be5 46. Ke4 Bg3 47. Rh5 e5 48. Rh6+ Kc5 49. Rh7 b6 50. Rh6 Kb5 51. Kd5 Ka5 52. Kc6 Bf2 53. Rh8 1-0

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "5"]
[White "Dinstuhl, Volkmar"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "A85"]
[PlyCount "51"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Nf3 g6 4. Nc3 Bg7 5. Bf4 d6 6. e3 0-0 7. h4 Nc6 8. c5 e6 9. Qb3 Qe7 10. cxd6 cxd6 11. d5 Na5 12. Qa3 e5 13. Bxe5 b6 14. Bxd6 Qf7 15. Bxf8 Bxf8 16. Qa4 Bd7 17. Bb5 Bxb5 18. Qxb5 Bd6 19. g3 Rc8 20. 0-0 Rc5 21. Qe2 Nxd5 22. Nxd5 Rxd5 23. Rfd1 Bf8 24. Ng5 Rxd1+ 25. Qxd1 Qb7 26. Qd8 1-0

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1991.??.??"]
[Round "?"]
[White "Koch, Thomas"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2335"]
[PlyCount "45"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. b3 Bg7 5. Bb2 d6 6. Nd2 c6 7. Nh3 Qc7 8. a4 0-0 9. Nc4 a5 10. 0-0 Na6 11. Nf4 Nb4 12. Nd3 Nbd5 13. Nd2 Nh5 14. e4 fxe4 15. Nxe4 Nhf6 16. Nxf6+ exf6 17. c4 Nb4 18. Nxb4 axb4 19. Qd2 c5 20. Rfe1 Bd7 21. dxc5 dxc5 22. Qd5+ Kh8 23. Re7 1-0

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "3"]
[White "Lehmann, Holger"]
[Black "Leissner, Boris"]
[Result "0-1"]
[ECO "A85"]
[PlyCount "73"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 f5 2. Nc3 Nf6 3. d4 e6 4. d5 e5 5. e4 fxe4 6. Bg5 Bb4 7. Nge2 0-0 8. Qb3 a5 9. a3 Be7 10. Bxf6 Rxf6 11. Nxe4 Rf7 12. N2g3 d6 13. Bd3 Nd7 14. Qc2 g6 15. 0-0 a4 16. Rad1 b6 17. Ne2 Nc5 18. Nxc5 bxc5 19. Nc3 Bd7 20. b4 axb3 21. Qxb3 Bg5 22. Rb1 Bh6 23. Ne4 Kg7 24. Qc3 Rf4 25. g3 Rf3 26. Kg2 Qf8 27. Rb7 Bf5 28. Rxc7+ Kg8 29. Qc2 Rxa3 30. Be2 Rfc3 31. Qb1 Rab3 32. Qa1 Bxe4+ 33. Kg1 Ra3 34. Qd1 Rc1 35. Qxc1 Bxc1 36. Rxc1 Ra2 37. Re1 0-1

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "6"]
[White "Leissner, Boris"]
[Black "Boehle, Lars"]
[Result "0-1"]
[ECO "C06"]
[PlyCount "64"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Ngf3 c5 6. c3 Nc6 7. Bd3 Be7 8. 0-0 0-0 9. Re1 f5 10. exf6 Nxf6 11. Nf1 cxd4 12. cxd4 Bd7 13. h3 Qb6 14. Bg5 Kh8 15. Ne5 Be8 16. Nxc6 Qxc6 17. Nh2 Bf7 18. Nf3 Qb6 19. Rc1 Bg8 20. Bb1 Qxb2 21. Re3 Ne4 22. Bxe4 Bxg5 23. Rb1 Qxa2 24. Ra1 Qxa1 25. Qxa1 Bxe3 26. fxe3 dxe4 27. Ng5 a5 28. Nxe4 a4 29. Nc5 a3 30. Nd7 Rfd8 31. Nb6 Ra6 32. Nc4 a2 0-1

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1991.??.??"]
[Round "?"]
[White "Leissner, Boris"]
[Black "Cremer, Jochen"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "82"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 e6 7. Bf4 Rd8 8. Be3 cxd4 9. cxd4 Qa5+ 10. Nc3 Bb4 11. Qd3 Nf6 12. 0-0 0-0 13. a3 Bxc3 14. Qxc3 Nd5 15. Qxa5 Nxa5 16. b4 Nb3 17. Rae1 Nc3 18. Bd1 Bxf3 19. Bxf3 b6 20. Bg5 Rxd4 21. Re3 Rc8 22. Ree1 h6 23. Be3 Rd7 24. Bf4 Nd4 25. Be5 Nxf3+ 26. gxf3 Nd5 27. Kh1 f6 28. Bg3 e5 29. Rd1 Kf7 30. Rd3 Rcd8 31. Rfd1 Ke6 32. Kg1 Ne7 33. Rxd7 Rxd7 34. Rxd7 Kxd7 35. f4 Nf5 36. fxe5 Nxg3 37. hxg3 fxe5 38. Kf1 b5 39. Ke2 Ke6 40. f3 Kd5 41. Kd3 h5 0-1

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "4"]
[White "Leissner, Boris"]
[Black "Goessling, Guido"]
[Result "1-0"]
[ECO "C24"]
[PlyCount "43"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d4 Nxe4 4. dxe5 c6 5. Qe2 Nc5 6. Nf3 Be7 7. Nc3 0-0 8. Be3 b6 9. 0-0-0 Ba6 10. h4 Bxc4 11. Qxc4 Kh8 12. Ng5 Qe8 13. Bxc5 Bxc5 14. f4 f6 15. exf6 gxf6 16. Rde1 Qg6 17. h5 Qf5 18. Nf7+ Kg7 19. h6+ Kg6 20. g4 Qxg4 21. f5+ Qxf5 22. Reg1+ 1-0

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1991.??.??"]
[Round "?"]
[White "Leissner, Boris"]
[Black "Guenther, Lars"]
[Result "0-1"]
[ECO "B02"]
[PlyCount "46"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nc3 Nxc3 4. bxc3 c5 5. f4 d6 6. Nf3 Bg4 7. d4 dxe5 8. fxe5 e6 9. Rb1 Qc7 10. Be2 Be7 11. 0-0 0-0 12. Qe1 Bf5 13. Bd3 Bxd3 14. cxd3 Nc6 15. dxc5 Bxc5+ 16. d4 Be7 17. c4 Rad8 18. Qe4 Nxd4 19. Nxd4 Rxd4 20. Rxb7 Qxc4 21. Qf3 Rd3 22. Qh5 Bc5+ 23. Kh1 Rd7 0-1

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "2"]
[White "Leissner, Boris"]
[Black "Hermanns, Sven"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "63"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. d3 b6 2. f4 d5 3. g3 Bb7 4. Bg2 Nf6 5. h3 h5 6. c3 c5 7. Na3 e6 8. Nf3 Nc6 9. 0-0 Bd6 10. Qe1 Ne7 11. Ng5 e5 12. e4 dxe4 13. dxe4 Ng6 14. Be3 Qe7 15. f5 Nf8 16. Rd1 0-0-0 17. Rf2 N8h7 18. Nxh7 Nxh7 19. Rfd2 a6 20. Nc4 Bc7 21. b4 Rxd2 22. Rxd2 Rd8 23. Rxd8+ Bxd8 24. bxc5 b5 25. Nd6+ Kb8 26. c4 Bc7 27. Nxb7 Kxb7 28. cxb5 axb5 29. Qb4 Qd7 30. Bf1 Ka6 31. a4 Kb7 32. Qxb5+ 1-0

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1991.??.??"]
[Round "?"]
[White "Leissner, Boris"]
[Black "Kubisch, Guido"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "53"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. 0-0 d6 6. Bg5 Be6 7. Nbd2 0-0 8. c3 h6 9. Bh4 a6 10. a4 Bxc4 11. Nxc4 b5 12. Ne3 Bxe3 13. fxe3 Qe7 14. Nd2 g5 15. Bg3 Nd7 16. d4 exd4 17. exd4 Rab8 18. axb5 axb5 19. Ra6 Nb6 20. Qh5 Kg7 21. d5 Ne5 22. Nb3 c5 23. dxc6 Nxc6 24. Bf2 Qd8 25. Nd4 Nxd4 26. Bxd4+ f6 27. h4 1-0

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "7"]
[White "Otte, Marco"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "A10"]
[PlyCount "111"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. c4 f5 2. b3 Nf6 3. Bb2 d6 4. f4 b6 5. Nf3 e6 6. e3 Bb7 7. Be2 Nc6 8. Na3 Qe7 9. d4 g6 10. Nc2 Bg7 11. 0-0 0-0 12. Ng5 h6 13. Nh3 Kh7 14. Bf3 a5 15. Qe1 Qe8 16. Qh4 Ra7 17. Ng5+ Kg8 18. Nxe6 Qxe6 19. d5 Qe8 20. dxc6 Bxc6 21. Bxc6 Qxc6 22. Rae1 Qe4 23. Bxf6 Bxf6 24. Qf2 a4 25. Nd4 axb3 26. axb3 Ra3 27. Rb1 Rfa8 28. Qf3 Qe7 29. Rfe1 Re8 30. Nb5 Ra2 31. Qc6 Rd2 32. e4 fxe4 33. Nxc7 Rc8 34. Rxe4 Qf7 35. Re8+ Qxe8 36. Qxe8+ Rxe8 37. Nxe8 Bd4+ 38. Kh1 Be3 39. Nf6+ Kf7 40. Nd5 Bf2 41. g3 g5 42. fxg5 hxg5 43. Kg2 Bd4+ 44. Kh3 Kg6 45. Kg4 b5 46. cxb5 Be5 47. Ne7+ Kf6 48. Nc6 Rxh2 49. Rf1+ Ke6 50. b6 Rh7 51. b7 d5 52. Nxe5 Rxb7 53. Nf3 Kd6 54. Nd2 Ke5 55. Rf5+ Kd4 56. Kxg5 1-0

[Event "NRW-chT 9192 U18"]
[Site "Germany"]
[Date "1991.??.??"]
[Round "?"]
[White "Watzlawek, Markus"]
[Black "Leissner, Boris"]
[Result "0-1"]
[ECO "A86"]
[PlyCount "80"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nh3 d6 5. d5 c6 6. c4 Bg7 7. Nc3 Bd7 8. 0-0 0-0 9. Rb1 a5 10. a3 a4 11. dxc6 Nxc6 12. Nxa4 Ne4 13. Be3 Ra6 14. c5 Ne5 15. Nb6 Bc6 16. cxd6 Nxd6 17. Qb3+ Kh8 18. Nf4 Bxg2 19. Kxg2 Ng4 20. Nbd5 Nxe3+ 21. Nxe3 Rb6 22. Qd3 Qd7 23. Ne6 Qxe6 24. b4 Rc6 25. Nd5 g5 26. Rbd1 Ne4 27. Qb5 Nd6 28. Qd3 Rd8 29. Ne3 Rdc8 30. Nd5 Rf8 31. a4 Rc4 32. e3 Qe4+ 33. Qxe4 Nxe4 34. Nxe7 Rxb4 35. Rd5 Rxa4 36. Nxf5 Ra2 37. Rb5 Rb2 38. Rd5 b5 39. Kg1 b4 40. f3 Nc3 0-1

[Event "NRW-ch U20"]
[Site "Bochum"]
[Date "1991.??.??"]
[Round "1"]
[White "Weidemann, Christian"]
[Black "Leissner, Boris"]
[Result "1-0"]
[ECO "C35"]
[PlyCount "49"]
[EventDate "1991.04.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2005"]
[Source "ChessBase"]
[SourceDate "2004.11.15"]
[SourceVersion "1"]
[SourceVersionDate "2004.11.15"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 Be7 4. Nc3 Bh4+ 5. Ke2 d6 6. d4 Bg4 7. Bxf4 Nc6 8. Qd3 Bf6 9. Be3 Nge7 10. Kd2 Qd7 11. a3 Bh5 12. Rd1 0-0-0 13. Be2 Bg6 14. d5 Ne5 15. Nxe5 Bxe5 16. Bxa7 f5 17. Qa6 Bf4+ 18. Ke1 fxe4 19. Qa5 Qf5 20. Nb5 Rd7 21. Bb6 Kd8 22. Nxc7 Rxc7 23. Bxc7+ Ke8 24. Qb5+ Qd7 25. Qxb7 1-0

