[Event "Berlin Lichtenrade op 09th"]
[Site "Berlin"]
[Date "2013.09.30"]
[Round "3.32"]
[White "Welz, Peter"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2139"]
[BlackElo "1849"]
[PlyCount "93"]
[EventDate "2013.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Be2 Bxf3 11. gxf3 Qh4+ 12. Bf2 Qf4 13. Qc1 Qxc1+ 14. Rxc1 0-0-0 15. c5 Nd5 16. Nxd5 Rxd5 17. Rc4 Be7 18. f4 Rd7 19. Bf3 f5 20. h4 Rhd8 21. Bxc6 bxc6 22. Rh3 Kb7 23. Ra3 Ra8 24. Rb4+ Kc8 25. Ra6 Rd8 26. Rxc6 a5 27. Rbb6 Kd7 28. Ra6 Rdb8 29. Rxe6 Rxa6 30. Rxa6 Rxb2 31. e6+ Kc8 32. Rxa5 Rb1+ 33. Ke2 Rb2+ 34. Kf3 c6 35. Ra7 Rb7 36. Rxb7 Kxb7 37. Ke3 Ka6 38. Kd3 Kb5 39. Kc3 g6 40. Kb3 h6 41. a4+ Ka5 42. Be1+ Ka6 43. Kc4 g5 44. fxg5 hxg5 45. hxg5 Bxg5 46. d5 Kb7 47. d6 1-0

[Event "Berlin Lichtenrade op 09th"]
[Site "Berlin"]
[Date "2013.09.28"]
[Round "1"]
[White "Koischwitz, Wanja"]
[Black "Gutman, Lev"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1849"]
[BlackElo "2432"]
[PlyCount "31"]
[EventDate "2013.09.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Nbd2 0-0 5. b3 c5 6. Bb2 cxd4 7. exd4 Nd5 8. Bc4 Nf4 9. 0-0 d5 10. Be2 Nc6 11. Re1 Bf5 12. Nf1 Be4 13. c3 e5 14. dxe5 Nxe5 15. Ng3 Ned3 16. Bxd3 0-1

[Event "Berlin Werner Ott op"]
[Site "Berlin"]
[Date "2013.07.06"]
[Round "1"]
[White "Major, Vitalij"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "2166"]
[BlackElo "1843"]
[PlyCount "103"]
[EventDate "2013.07.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. Be3 Bb4+ 6. Nc3 Bxc3+ 7. bxc3 0-0 8. f4 Nec6 9. Bd3 d6 10. Nf3 b6 11. 0-0 Qe7 12. Bd4 Nd7 13. Re1 f6 14. e5 Nxd4 15. cxd4 f5 16. Qc2 g6 17. Qb3 Kh8 18. Re3 Bb7 19. Rae1 Bxf3 20. Rxf3 dxe5 21. fxe5 c5 22. d5 Qh4 23. g3 Qd4+ 24. Kg2 Nxe5 25. Rfe3 Ng4 26. Rf3 Rae8 27. Rf4 Qg7 28. Qb1 Rxe1 29. Qxe1 Qb2+ 30. Qe2 Qxe2+ 31. Bxe2 Ne3+ 32. Kf2 Re8 33. h3 Kg7 34. Bd3 Kf6 35. Rf3 Nd1+ 36. Kf1 Re3 37. Rxe3 Nxe3+ 38. Ke2 f4 39. gxf4 Nf5 40. Bxf5 gxf5 41. Kd3 a6 42. a4 Ke7 43. a5 bxa5 44. Kc3 a4 45. Kb2 Kd6 46. Ka3 Kc7 47. Kxa4 Kb6 48. d6 Kc6 49. Ka5 Kxd6 50. Kxa6 Kc6 51. Ka5 h6 52. Ka6 1-0

[Event "Berlin-ch QT"]
[Site "Berlin"]
[Date "2013.04.06"]
[Round "8"]
[White "Koischwitz, Wanja"]
[Black "Rudolph, Stephanie"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1824"]
[BlackElo "1904"]
[PlyCount "42"]
[EventDate "2013.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 d5 4. e3 e6 5. Bd3 Bd6 6. 0-0 0-0 7. Nbd2 Nbd7 8. e4 cxd4 9. cxd4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Nf6 12. Bc2 h6 13. Re1 b5 14. Ne5 Bb7 15. Bf4 Bb4 16. Re2 Qd5 17. f3 Rfd8 18. Be3 Ba5 19. Qd3 Rac8 20. Bb3 Qd6 21. Rf2 Qxe5 0-1

[Event "Berlin-ch QT"]
[Site "Berlin"]
[Date "2013.04.05"]
[Round "7"]
[White "Kirchhof, Arno"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2073"]
[BlackElo "1824"]
[PlyCount "73"]
[EventDate "2013.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 b5 5. Qc2 bxc4 6. e4 Bb7 7. Bxc4 exd5 8. exd5 Be7 9. Nc3 0-0 10. 0-0 d6 11. Qb3 Bc8 12. Re1 Bg4 13. Ng5 Nbd7 14. Nge4 Rb8 15. Qc2 Ne5 16. Be2 Qd7 17. h3 Nxe4 18. Bxg4 Nxg4 19. Nxe4 Nf6 20. Nc3 Rb7 21. Bf4 Rfb8 22. b3 Rb4 23. Bh2 c4 24. Qe2 Bd8 25. bxc4 Rb2 26. Qd3 Ba5 27. Re3 Bxc3 28. Qxc3 Qf5 29. Rf1 Ne4 30. Qe1 Rb1 31. Rxe4 Rxe1 32. Rexe1 Qg6 33. c5 Rd8 34. Bxd6 Qc2 35. Bc7 Rf8 36. c6 Qxa2 37. d6 1-0

[Event "Berlin-ch QT"]
[Site "Berlin"]
[Date "2013.04.02"]
[Round "4"]
[White "Koischwitz, Wanja"]
[Black "Jaeger, Andre"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1824"]
[BlackElo "2012"]
[PlyCount "206"]
[EventDate "2013.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bc4 Nh5 6. Bg5 h6 7. Bh4 g5 8. Bg3 Nxg3 9. hxg3 c6 10. c3 e6 11. Nbd2 d5 12. Bb3 Nd7 13. 0-0 0-0 14. e4 dxe4 15. Nxe4 Nf6 16. Qd3 Nd5 17. Bc2 f5 18. Ned2 Qc7 19. Nc4 Bd7 20. Rfe1 Rad8 21. Nce5 Be8 22. Bb3 Bh5 23. Re2 Bf6 24. Rae1 Kg7 25. a3 g4 26. Nh2 b5 27. Bc2 Kh8 28. Nxc6 Qxc6 29. Rxe6 Qd7 30. Qxf5 Bg5 31. Qe5+ Qg7 32. Qe2 Nc7 33. Re5 Rde8 34. Qe4 Bf6 35. Qf5 Bxe5 36. Qxh5 Bxg3 37. Rd1 Bxf2+ 38. Kh1 Re1+ 39. Rxe1 Bxe1 40. Nxg4 Rf1+ 41. Kh2 Bd2 42. Bd3 Rf4 43. Nxh6 Rh4+ 44. Qxh4 Qxh6 45. Qxh6+ Bxh6 46. b3 Bc1 47. d5 Bxa3 48. c4 Bd6+ 49. Kh3 b4 50. Kg4 Kg7 51. Kf5 a5 52. Bc2 Kf7 53. g4 Na6 54. g5 Nc5 55. g6+ Kg7 56. Kg4 Kf6 57. Kf3 Bf8 58. Ke3 Ke5 59. Kd2 Kd4 60. Bd1 Ne4+ 61. Kc2 Bh6 62. Bf3 Nd6 63. Bg4 Bg7 64. Bd7 Ne4 65. Ba4 Kc5 66. Be8 Nd6 67. Ba4 Nf5 68. Kd3 Ne7 69. Be8 Kd6 70. Ke4 Nc8 71. Kd3 Ke7 72. Bf7 Nd6 73. c5 Nxf7 74. gxf7 Kxf7 75. Kc4 Bf6 76. c6 Ke7 77. Kb5 Kd8 78. Kxa5 Be7 79. Kb6 Bd6 80. Kb7 Bc7 81. Ka6 Kc8 82. Kb5 Bd6 83. Ka6 Kc7 84. Kb5 Be7 85. Kc4 Kb6 86. Kd4 Bd6 87. Kc4 Be7 88. Kd4 Bc5+ 89. Kc4 Bd6 90. Kd4 Kb5 91. Kd3 Kc5 92. Ke4 Bc7 93. Kd3 Kxd5 94. Ke3 Kxc6 95. Kd4 Kb5 96. Kd3 Kc5 97. Kc2 Kd4 98. Kd2 Bf4+ 99. Kc2 Bg5 100. Kb2 Kd3 101. Kb1 Kc3 102. Ka2 Bf6 103. Kb1 Kxb3 0-1

[Event "Berlin-ch QT"]
[Site "Berlin"]
[Date "2013.04.01"]
[Round "3"]
[White "Heerde, Thomas"]
[Black "Koischwitz, Wanja"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2023"]
[BlackElo "1824"]
[PlyCount "68"]
[EventDate "2013.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bf5 4. 0-0 e6 5. d3 Bc5 6. Nbd2 Nc6 7. a3 0-0 8. b4 Bb6 9. Bb2 Qe7 10. c4 a6 11. Nh4 dxc4 12. Nxc4 Ba7 13. Rc1 Bg4 14. Nf3 Rad8 15. Qd2 Nd5 16. Rfd1 f6 17. e4 Nb6 18. Ne3 Bh5 19. g4 Bg6 20. Qc2 f5 21. gxf5 exf5 22. exf5 Bxf5 23. Nxf5 Rxf5 24. d4 Qf7 25. Ne5 Nxe5 26. dxe5 Rf8 27. Bd4 c6 28. Re1 Qe6 29. Kh1 Rg5 30. Qd2 Rxg2 31. Kxg2 Qg4+ 32. Kf1 Qh3+ 33. Ke2 Qf3+ 34. Kf1 Qh3+ 1/2-1/2

[Event "Berlin-ch QT"]
[Site "Berlin"]
[Date "2013.03.31"]
[Round "2"]
[White "Koischwitz, Wanja"]
[Black "Viehweger, Martin"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1824"]
[BlackElo "2036"]
[PlyCount "97"]
[EventDate "2013.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. 0-0 Qc7 7. Nbd2 b6 8. e4 dxe4 9. Nxe4 Bb7 10. Bg5 Be7 11. b4 Rd8 12. Nxf6+ gxf6 13. Bh4 a6 14. b5 axb5 15. Bxb5 f5 16. Ng5 h6 17. Qh5 hxg5 18. Qxh8+ Kd7 19. Qg7 gxh4 20. d5 exd5 21. Qxf7 Kc8 22. Qxf5+ Kb8 23. Rad1 Bd6 24. Qh3 d4 25. Bxc6 Bxc6 26. cxd4 cxd4 27. Qxh4 Rg8 28. g3 Be5 29. Rc1 Kb7 30. f4 Rh8 31. Qg5 Bd6 32. Rxc6 Qxc6 33. Qg7+ Ka6 34. Qxh8 d3 35. h4 Bc5+ 36. Kh2 Qe4 37. Qe5 Qc4 38. Qe1 d2 39. Qd1 Qxa2 40. Qa1 Qxa1 41. Rxa1+ Kb5 42. Rd1 Bb4 43. Kg2 Kc4 44. Kf3 Kd3 45. h5 b5 46. h6 Bc3 47. g4 b4 48. g5 b3 49. g6 1-0

[Event "Berlin Werner Ott op"]
[Site "Berlin"]
[Date "2012.07.07"]
[Round "1"]
[White "Koischwitz, Wanja"]
[Black "Von Wantoch Rekowski, Danijela"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1832"]
[BlackElo "2233"]
[PlyCount "68"]
[EventDate "2012.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. e3 Ne4 5. Bxe7 Qxe7 6. c3 b6 7. Bd3 Bb7 8. Qc2 f5 9. Nbd2 Nxd2 10. Qxd2 d6 11. Qe2 Nd7 12. e4 e5 13. dxe5 dxe5 14. Nd2 0-0-0 15. Ba6 Nc5 16. Bxb7+ Kxb7 17. 0-0 f4 18. a4 Rhf8 19. a5 Rf6 20. b4 Nd3 21. axb6 cxb6 22. Nf3 Rc6 23. Ra3 Kb8 24. Rd1 Rcd6 25. Rda1 R8d7 26. h3 g5 27. Qa2 Qg7 28. Qb3 h5 29. c4 g4 30. hxg4 hxg4 31. Nh2 g3 32. fxg3 Qxg3 33. R3a2 Qe3+ 34. Kf1 Qg3 0-1

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2012.04.14"]
[Round "9.10"]
[White "Schildt, Rene"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "2041"]
[BlackElo "1838"]
[PlyCount "73"]
[EventDate "2012.04.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 g6 6. Be2 Bg7 7. Nf3 0-0 8. h3 Nc6 9. c4 Nb6 10. Be3 Na5 11. Qc1 Re8 12. 0-0 Bf5 13. Nbd2 Nc6 14. Nb3 e5 15. d5 Nb4 16. Ne1 e4 17. Nc5 Qc8 18. a3 Na6 19. Nxa6 bxa6 20. Nc2 Bxh3 21. gxh3 Qxh3 22. Bf4 g5 23. Qe3 Qf5 24. Bxc7 Nd7 25. Nd4 Qg6 26. Nc6 f5 27. Qb3 f4 28. Bg4 Nc5 29. Qh3 Qf6 30. b4 Nd3 31. Rad1 Qc3 32. Bf5 h6 33. Rxd3 exd3 34. Qxd3 Qxd3 35. Bxd3 Rac8 36. d6 Rxc7 37. dxc7 1-0

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2012.04.12"]
[Round "7.9"]
[White "Baranowsky, Peter"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "1954"]
[BlackElo "1838"]
[PlyCount "61"]
[EventDate "2012.04.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. d4 Bg4 5. Nc3 e6 6. Qb3 Qb6 7. c5 Qxb3 8. axb3 Na6 9. Bf4 Nh5 10. Kd2 Nxf4 11. gxf4 g6 12. h3 Bh5 13. f3 Bh6 14. e3 g5 15. fxg5 Bxg5 16. h4 Bh6 17. Nge2 Rg8 18. Rhg1 f6 19. Bh3 Ke7 20. Bg4 Bf7 21. f4 e5 22. fxe5 fxe5 23. dxe5 Nxc5 24. Nd4 Bg6 25. h5 Be4 26. b4 Raf8 27. bxc5 Rf2+ 28. Be2 Ra8 29. Raf1 Rff8 30. Nxe4 Rxf1 31. Rxf1 1-0

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2012.04.09"]
[Round "4.10"]
[White "Hahlbohm, Matthias"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2075"]
[BlackElo "1838"]
[PlyCount "85"]
[EventDate "2012.04.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 cxd6 5. Bc4 Nb6 6. Bb3 g6 7. Qf3 e6 8. Nh3 Bg7 9. Bg5 Qc7 10. Bf6 0-0 11. 0-0 Nc6 12. c3 e5 13. Bxg7 Kxg7 14. d5 Bxh3 15. Qxh3 Ne7 16. Qd3 Nd7 17. Na3 Nc5 18. Qd1 f5 19. Bc2 f4 20. Qf3 Nf5 21. Rfe1 Nh4 22. Qh3 Qe7 23. Nc4 f3 24. g3 Ng2 25. Rf1 b5 26. b4 Nd7 27. Qe6 Qxe6 28. dxe6 bxc4 29. exd7 Kf6 30. Be4 Ke6 31. Bxa8 Rxa8 32. Rfd1 Rd8 33. a4 Rxd7 34. b5 Rb7 35. Rab1 d5 36. a5 Kd6 37. b6 a6 38. Rb2 Kc5 39. Rbd2 d4 40. cxd4+ exd4 41. Rxd4 Kb4 42. Rd7 Rb8 43. Rd8 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.21"]
[Round "9"]
[White "Koischwitz, Wanja"]
[Black "Yuan, Yizheng"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "1813"]
[BlackElo "1889"]
[PlyCount "130"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. b3 Bb4+ 5. Bd2 Be7 6. Ne5 Bb7 7. f3 0-0 8. Be2 c5 9. 0-0 d6 10. Nd3 cxd4 11. exd4 Nc6 12. c3 Ba6 13. Qe1 d5 14. Ne5 Nxe5 15. Bxa6 Ng6 16. Bg5 Qc7 17. Bxf6 Bxf6 18. Na3 Rfe8 19. Nb5 Qc6 20. f4 Ne7 21. Rf3 h5 22. Qe2 Nf5 23. Qd3 g6 24. Rc1 Nd6 25. c4 dxc4 26. bxc4 Rad8 27. d5 exd5 28. Qxd5 Qxd5 29. cxd5 Re4 30. Nxd6 Rxd6 31. f5 Bd4+ 32. Kf1 Bc5 33. fxg6 fxg6 34. Bd3 Rd4 35. Re1 Kg7 36. Re7+ Kh6 37. Re6 R4xd5 38. Rxd6 Rxd6 39. Ke2 Re6+ 40. Kd2 Kg7 41. Bc4 Re7 42. h3 Bd4 43. Kd3 Bf6 44. Kc2 Re1 45. Rf2 Re5 46. a4 Ra5 47. Kb3 a6 48. Rd2 b5 49. Rd7+ Kh6 50. axb5 axb5 51. Kb4 Bc3+ 52. Kxc3 bxc4 53. Kxc4 Kg5 54. Rd6 Ra2 55. g3 Ra4+ 56. Kb3 Re4 57. Rd5+ Kf6 58. Kc2 Re3 59. Rd6+ Kf5 60. g4+ hxg4 61. hxg4+ Kg5 62. Kd2 Re4 63. Kd3 Rxg4 64. Ke3 Rf4 65. Rxg6+ Kxg6 1/2-1/2

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.20"]
[Round "8"]
[White "Richter, Goetz"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2045"]
[BlackElo "1813"]
[PlyCount "93"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Be3 Nc6 7. Nc3 Bf5 8. b3 e6 9. Nf3 Be7 10. Be2 0-0 11. 0-0 Bf6 12. Rc1 Bg4 13. h3 Bh5 14. d5 Bxf3 15. Bxf3 Bxc3 16. dxc6 Bb4 17. cxb7 Rb8 18. a3 Bc5 19. Bxc5 dxc5 20. Qxd8 Rfxd8 21. Rfd1 Nd7 22. g3 Kf8 23. Kf1 Ke7 24. Ke2 Nf6 25. b4 Nd7 26. Bg2 f5 27. Rd2 Nf6 28. bxc5 Rxd2+ 29. Kxd2 e5 30. Bc6 Nd7 31. Bxd7 Kxd7 32. Rb1 Kc6 33. Kc3 Rxb7 34. Rd1 Rd7 35. Rb1 e4 36. Rb8 g6 37. Rc8+ Rc7 38. Rxc7+ Kxc7 39. Kd4 Kc6 40. g4 fxg4 41. hxg4 h5 42. gxh5 gxh5 43. Kxe4 Kxc5 44. f4 Kxc4 45. f5 Kc5 46. Ke5 Kc6 47. Ke6 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.19"]
[Round "7"]
[White "Koischwitz, Wanja"]
[Black "Frey, Matthias"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "1813"]
[BlackElo "1948"]
[PlyCount "75"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. c3 Nbd7 6. Nbd2 0-0 7. Bc4 c5 8. 0-0 a6 9. a4 b6 10. Qb3 Bb7 11. d5 b5 12. e4 bxc4 13. Qxb7 Rb8 14. Qxa6 Rxb2 15. Qxc4 Nh5 16. Bg3 Qa5 17. Rfb1 Qxc3 18. Qxc3 Bxc3 19. Rxb2 Bxb2 20. Ra2 Bc3 21. a5 Ra8 22. Nc4 Ra7 23. Kf1 Nhf6 24. Nfd2 Bxd2 25. Nxd2 c4 26. f3 c3 27. Nb3 Rb7 28. Ra3 c2 29. Bf4 Ne5 30. a6 Ra7 31. Bxe5 dxe5 32. Ke2 Ne8 33. Kd2 Nc7 34. Nc5 Nb5 35. Rb3 Nd4 36. Rb7 Ra8 37. a7 Kg7 38. Na6 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.18"]
[Round "6"]
[White "Grassi, Fabrizio"]
[Black "Koischwitz, Wanja"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "1960"]
[BlackElo "1813"]
[PlyCount "120"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 Be7 5. Bd3 b6 6. Qe2 c5 7. c3 Bd7 8. Ngf3 Nc6 9. Ne5 c4 10. Bc2 b5 11. a3 Qa5 12. 0-0 h5 13. Ndf3 Ng4 14. e4 Ngxe5 15. Bxe5 0-0-0 16. h3 f6 17. Bh2 g5 18. Nd2 g4 19. h4 f5 20. exd5 exd5 21. Bg3 Rde8 22. Be5 Bxh4 23. g3 Bg5 24. f4 Nxe5 25. dxe5 Qb6+ 26. Kg2 Bd8 27. Rh1 d4 28. cxd4 Bc6+ 29. Ne4 Qxd4 30. Rhe1 fxe4 31. Bxe4 Bxe4+ 32. Qxe4 Qxe4+ 33. Rxe4 Bb6 34. Rae1 Rd8 35. R4e2 h4 36. gxh4 Rxh4 37. Kg3 Rdh8 38. e6 Kd8 39. Rd1+ Ke8 40. Rd7 Rh3+ 41. Kxg4 Re3 42. Rxe3 Bxe3 43. f5 Rg8+ 44. Kf3 Bc5 45. f6 Rg6 46. f7+ Kf8 47. Rd8+ Kg7 48. Rg8+ Kf6 49. f8Q+ Bxf8 50. Rxf8+ Kxe6 51. Rb8 Rf6+ 52. Ke4 a6 53. Rb6+ Kf7 54. Rxf6+ Kxf6 55. Kd4 Ke6 56. Kc5 Kd7 57. Kb6 Kd6 58. Kxa6 Kc6 59. Ka5 Kc5 60. Ka6 b4 1/2-1/2

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.17"]
[Round "5"]
[White "Koischwitz, Wanja"]
[Black "Theilig, Reinhard"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1813"]
[BlackElo "1701"]
[PlyCount "53"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 Nbd7 5. 0-0 c5 6. c3 Be7 7. Nbd2 0-0 8. e4 dxe4 9. Nxe4 cxd4 10. Nxd4 Nc5 11. Nxf6+ Bxf6 12. Bc2 Qc7 13. Qh5 g6 14. Qf3 Bg7 15. b4 Nd7 16. Bb3 Ne5 17. Qg3 Qd8 18. Rd1 Qe8 19. b5 Nd7 20. Ba3 Nf6 21. Bxf8 Bxf8 22. a4 Ne4 23. Qe3 Nc5 24. c4 Bg7 25. Rab1 e5 26. Nc6 Nxb3 27. Rd8 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.16"]
[Round "4"]
[White "Perestjuk, Marko"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "1964"]
[BlackElo "1813"]
[PlyCount "35"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 Nc6 8. Be3 e6 9. Be2 Be7 10. Nf3 Bg4 11. 0-0 0-0 12. Qd2 f6 13. exf6 Bxf6 14. Rad1 Qd7 15. d5 Bxc3 16. Qxc3 exd5 17. cxd5 Nxd5 18. Rxd5 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.14"]
[Round "3"]
[White "Koischwitz, Wanja"]
[Black "Muenstermann, Claudia"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1813"]
[BlackElo "1838"]
[PlyCount "53"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Be7 6. 0-0 0-0 7. Nbd2 Nc6 8. dxc5 Bxc5 9. Qe2 Qc7 10. e4 h6 11. h3 b6 12. Re1 Bb7 13. e5 Nd7 14. Bc2 Rfd8 15. Nb3 Bf8 16. Nbd4 g6 17. Nxc6 Bxc6 18. Bf4 Bg7 19. Qe3 Kh7 20. h4 Nc5 21. h5 Ne4 22. hxg6+ fxg6 23. Nd4 Re8 24. f3 Nc5 25. Kf2 Nd7 26. Rh1 h5 27. Rxh5+ 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.14"]
[Round "2"]
[White "Rohde, Wolfgang"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2176"]
[BlackElo "1813"]
[PlyCount "47"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 c6 2. Nc3 Nf6 3. Nf3 d5 4. d4 e6 5. Qc2 Nbd7 6. e4 dxe4 7. Nxe4 Nxe4 8. Qxe4 Bb4+ 9. Bd2 Bxd2+ 10. Nxd2 Nf6 11. Qe3 0-0 12. Be2 Qb6 13. 0-0-0 a5 14. Rhe1 a4 15. a3 Qa5 16. g4 b5 17. g5 Nd7 18. c5 Ba6 19. Bf3 Rac8 20. Ne4 b4 21. Nf6+ gxf6 22. gxf6 Kh8 23. Qh6 Rg8 24. Be4 1-0

[Event "Berlin Lichtenberger op 10th"]
[Site "Berlin"]
[Date "2011.08.13"]
[Round "1"]
[White "Koischwitz, Wanja"]
[Black "Niehaus, Frank"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1813"]
[BlackElo "2190"]
[PlyCount "60"]
[EventDate "2011.08.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bd3 Nh5 6. Bg3 c5 7. c3 cxd4 8. Nxd4 0-0 9. Nd2 Nc6 10. N4f3 a6 11. Qe2 Bg4 12. Bh4 Ne5 13. Bc2 Qc7 14. 0-0 Nxf3+ 15. Nxf3 Rfe8 16. Bb3 Nf6 17. h3 Bd7 18. Ng5 Rf8 19. Bg3 Qc5 20. Bh4 Rac8 21. Rfd1 Bb5 22. Qc2 Bc6 23. Rd4 e5 24. Rc4 Qa7 25. Bg3 b5 26. Rh4 e4 27. Bxd6 h6 28. Bxf8 hxg5 29. Bxg7 Kxg7 30. Rg4 Nxg4 1/2-1/2

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2011.05.01"]
[Round "9.20"]
[White "Koischwitz, Wanja"]
[Black "Mannaberg, Steffen"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1792"]
[BlackElo "1921"]
[PlyCount "115"]
[EventDate "2011.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. Bd3 Bg4 5. h3 Bh5 6. 0-0 Nbd7 7. Nbd2 Qc7 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6 11. Bd3 e6 12. Bg5 Be7 13. Be2 Rd8 14. c3 0-0 15. Ne5 Bxe2 16. Qxe2 Rd5 17. Bxf6 Bxf6 18. Ng4 Be7 19. Ne3 Rd7 20. b4 Rfd8 21. Ng4 b6 22. Ne5 Rd5 23. a4 c5 24. Rfc1 Bf6 25. Ng4 cxd4 26. cxd4 Qf4 27. Rc4 Bxd4 28. Ne3 Qf6 29. Rac1 R5d7 30. Ng4 Qg5 31. Rc8 h5 32. Rxd8+ Rxd8 33. Ne3 g6 34. Rc7 Qf4 35. Rc4 a6 36. b5 axb5 37. axb5 Qe5 38. Rb4 Bc5 39. Ra4 Bd6 40. g3 Bc5 41. Kg2 Bxe3 42. fxe3 Qd5+ 43. e4 Qd2 44. Kf2 Rd3 45. Ra8+ Kg7 46. Qxd2 Rxd2+ 47. Ke3 Rb2 48. Ra3 e5 49. Kd3 Rxb5 50. Kc4 Rb1 51. Kd5 f6 52. Ra7+ Kh6 53. h4 Rb3 54. Ke6 Rb4 55. Kxf6 Rxe4 56. Ra8 Kh7 57. Ra7+ Kg8 58. Ra8+ 1/2-1/2

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2011.04.30"]
[Round "8.11"]
[White "Alic, Miran"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2064"]
[BlackElo "1792"]
[PlyCount "73"]
[EventDate "2011.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. g3 Nc6 4. Bg2 Bc5 5. d3 0-0 6. a3 d6 7. b4 Bd4 8. Bd2 Bf5 9. e4 Be6 10. Nge2 Bb6 11. Nd5 Bxd5 12. cxd5 Ne7 13. 0-0 Qd7 14. h3 Nh5 15. Kh2 f5 16. exf5 Nf6 17. g4 Kh8 18. Qb3 g6 19. f4 Bd4 20. Nxd4 exd4 21. Qb2 gxf5 22. g5 Nh5 23. Qxd4+ Kg8 24. Bf3 Ng7 25. h4 Ng6 26. h5 Ne7 27. Bc3 Rf7 28. h6 c5 29. dxc6 Nxc6 30. Bxc6 Qxc6 31. hxg7 Qa4 32. Rae1 Rc8 33. Re2 Qc6 34. Bb2 Re8 35. Rfe1 Rfe7 36. Rxe7 Rxe7 37. Rxe7 1-0

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2011.04.29"]
[Round "7.8"]
[White "Koischwitz, Wanja"]
[Black "Schmidt, Juergen"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1792"]
[BlackElo "2025"]
[PlyCount "84"]
[EventDate "2011.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Bd3 Bg6 5. 0-0 Nbd7 6. b3 e6 7. Ba3 Be7 8. c4 c6 9. Bxe7 Qxe7 10. Re1 Ne4 11. cxd5 exd5 12. Bxe4 dxe4 13. Nfd2 0-0 14. Nc3 Rfe8 15. a3 Rad8 16. b4 Nf6 17. Nc4 Nd7 18. Qe2 Qg5 19. Nd6 Re6 20. Nxb7 Rb8 21. Nc5 Nxc5 22. bxc5 Bh5 23. Qf1 Rbe8 24. Rab1 Rh6 25. Nxe4 Qh4 26. f3 Bg6 27. h3 Bxe4 28. fxe4 Qxe4 29. Rb7 Rf6 30. Qe2 Ra8 31. Reb1 h6 32. Rb8+ Rxb8 33. Rxb8+ Kh7 34. Rb2 Re6 35. Rb7 f5 36. Qf2 a5 37. Ra7 Rf6 38. Qf4 Qb1+ 39. Kh2 Qb5 40. Qe5 Rg6 41. Rxg7+ Rxg7 42. Qxf5+ Kh8 1/2-1/2

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2011.04.28"]
[Round "6.15"]
[White "Lang, Martin"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "1937"]
[BlackElo "1792"]
[PlyCount "93"]
[EventDate "2011.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 cxd6 5. c4 Nb6 6. Be3 Nc6 7. Nc3 Bf5 8. Bd3 Bxd3 9. Qxd3 e6 10. Nf3 Be7 11. 0-0 0-0 12. b3 d5 13. c5 Nc8 14. Bf4 Bf6 15. Ne5 N8e7 16. Nb5 Bxe5 17. Bxe5 Nxe5 18. dxe5 Nc6 19. Qc3 Qb8 20. Nd6 b6 21. Rfe1 a5 22. Rad1 bxc5 23. Qxc5 Nb4 24. a3 Na6 25. Qe3 Nc7 26. Rd4 Nb5 27. Nxb5 Qxb5 28. Qg5 Qxb3 29. Rg4 g6 30. Rg3 Qb7 31. h4 Rae8 32. h5 Qe7 33. Qh6 Qb7 34. Kh2 Qe7 35. Kh3 Rc8 36. Ree3 Rc4 37. Rg5 d4 38. Reg3 Rc3 39. f3 d3 40. hxg6 fxg6 41. Rxg6+ hxg6 42. Qxg6+ Kh8 43. Kh2 Rc4 44. Qxd3 Rh4+ 45. Rh3 Rxh3+ 46. gxh3 Qg5 47. Qe4 0-1

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2011.04.25"]
[Round "3.19"]
[White "Koischwitz, Wanja"]
[Black "Walter, Guenter"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "1792"]
[BlackElo "1994"]
[PlyCount "116"]
[EventDate "2011.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c6 3. e3 d5 4. Bd3 Bg4 5. 0-0 g6 6. h3 Bxf3 7. Qxf3 Bg7 8. c4 e6 9. Nc3 0-0 10. b3 Re8 11. Bb2 Nbd7 12. Na4 dxc4 13. bxc4 Qa5 14. Nc3 Rad8 15. Be4 Qb4 16. Qe2 e5 17. a3 Qe7 18. d5 Nxe4 19. Nxe4 cxd5 20. cxd5 f5 21. d6 Qh4 22. Nd2 Nb6 23. Nf3 Qc4 24. Qd2 Qd5 25. Qe2 Rxd6 26. Rac1 Qd3 27. Qe1 Qb3 28. Rb1 Qa4 29. Bc3 h6 30. Bb4 Rd7 31. Qe2 Kh7 32. Rfc1 Rc8 33. Bc5 Nd5 34. Rc4 Qa6 35. Rbc1 b6 36. Ng5+ hxg5 37. Rh4+ gxh4 38. Qxa6 Rxc5 39. Rxc5 bxc5 40. Qc6 Nb6 41. Qxc5 Rd1+ 42. Kh2 e4 43. Qc7 Rd7 44. Qf4 Bf6 45. Qb8 Be7 46. Qe8 Bxa3 47. g4 Bd6+ 48. Kg2 Re7 49. Qd8 Bb4 50. Qd4 Ba3 51. Qf6 fxg4 52. Qxh4+ Kg7 53. Qxg4 Nd5 54. Qd1 Nf6 55. Qa1 Bb4 56. Qd4 a5 57. Kg3 Rd7 58. Qe5 Bd6 0-1

[Event "Berlin-ch qualification"]
[Site "Berlin-Lichtenrade"]
[Date "2011.04.24"]
[Round "2.20"]
[White "Koischwitz, Wanja"]
[Black "Paris, Grigori"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1792"]
[BlackElo "1946"]
[PlyCount "84"]
[EventDate "2011.04.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. e3 Bd6 4. Bd3 Nd7 5. 0-0 Ngf6 6. c3 0-0 7. Nbd2 Re8 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 e5 11. Qc2 Nf6 12. Bg5 h6 13. Bxf6 Qxf6 14. d5 Qf4 15. Qa4 Bf5 16. Rae1 b5 17. Qc2 Bd7 18. h3 Rab8 19. b3 h5 20. Re2 h4 21. Qd2 Qxd2 22. Rxd2 f5 23. Bb1 e4 24. Nd4 Re5 25. Ne2 Bc5 26. Rdd1 a5 27. Kh1 Be8 28. Bc2 Bf7 29. Nf4 g5 30. Ne6 Bxe6 31. dxe6 Rxe6 32. Rd5 Bd6 33. Rxf5 Re5 34. Rxe5 Bxe5 35. Bxe4 Bxc3 36. Rc1 b4 37. Rd1 Re8 38. f3 Kf7 39. Rd7+ Ke6 40. Rd5 c6 41. Rxg5 Rd8 42. Rg6+ Kf7 1/2-1/2

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.15"]
[Round "9"]
[White "Becker, Uwe"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1801"]
[BlackElo "1773"]
[PlyCount "68"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. c4 Nc6 4. Nc3 Bg4 5. e3 e6 6. cxd5 Bxf3 7. Qxf3 exd5 8. Bb5 Bb4 9. 0-0 0-0 10. Ne2 Ne7 11. a3 Bd6 12. Bd3 Ng6 13. Bxg6 fxg6 14. Nc3 c6 15. Qe2 Qc7 16. h3 Rae8 17. Bd2 Qd7 18. Rac1 g5 19. g4 h5 20. f3 hxg4 21. fxg4 Qe6 22. Rf2 c5 23. dxc5 Bxc5 24. Nd1 Bb6 25. Bb4 Rf7 26. Bc5 Rc7 27. b4 Bxc5 28. Rxc5 Rxc5 29. bxc5 Ne4 30. Rf3 Nxc5 31. Qb5 b6 32. Kg2 Rd8 33. Qb4 Qe4 34. Qc3 Rf8 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.14"]
[Round "8"]
[White "Koischwitz, Wanja"]
[Black "Mai, Andreas"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1773"]
[BlackElo "1949"]
[PlyCount "108"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 0-0 5. 0-0 d6 6. b3 Nc6 7. Bb2 Ne4 8. Nbd2 Nxd2 9. Qxd2 e5 10. d5 Ne7 11. c4 h6 12. h3 f5 13. Nh2 f4 14. e4 g5 15. Bh5 Kh7 16. Rac1 Ng6 17. Bxg6+ Kxg6 18. Qe2 h5 19. c5 Rh8 20. f3 Bf8 21. Rc2 b6 22. cxd6 Bxd6 23. Rfc1 a5 24. a4 Ba6 25. Qd1 Qe7 26. Nf1 Bc5+ 27. Rxc5 bxc5 28. Ba3 Rhb8 29. Rxc5 Kg7 30. Qc2 Rb7 31. b4 axb4 32. Bxb4 Kg8 33. Qa2 Rxb4 34. Rc6 Qf7 35. Nd2 Bb7 36. Re6 Raxa4 37. Qc2 Rd4 38. Rxe5 Qg7 39. Re6 Ra1+ 40. Kh2 g4 41. hxg4 hxg4 42. Re8+ Kh7 43. e5+ Kh6 44. Re6+ Kg5 45. Nb1 Bxd5 46. Rf6 g3+ 47. Kg1 Rd1+ 48. Qxd1 Ba2 49. Rf5+ Kxf5 50. Qd3+ Ke6 51. Qa6+ Ke7 52. Qa3+ Kf7 53. Kf1 Rxb1+ 54. Ke2 Qxe5+ 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.13"]
[Round "7"]
[White "Scheck, Gero"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1267"]
[BlackElo "1773"]
[PlyCount "78"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. Nc3 Nf6 2. Nf3 d5 3. d4 Bf5 4. e3 e6 5. Bd3 Bxd3 6. Qxd3 c6 7. 0-0 Bd6 8. Re1 0-0 9. e4 dxe4 10. Nxe4 Nxe4 11. Rxe4 Nd7 12. Rh4 g6 13. Qe3 Be7 14. Rh3 Re8 15. Qh6 Nf8 16. Bg5 Qb6 17. Rb1 c5 18. Bxe7 Rxe7 19. Ng5 f6 20. Nf3 cxd4 21. Rh4 Rd8 22. Qd2 e5 23. c3 dxc3 24. Qxc3 Rc7 25. Qb3+ Qxb3 26. axb3 Rc2 27. Rc4 Rxb2 28. Rcc1 Rxb1 29. Rxb1 Ne6 30. Kf1 Nc5 31. Ke2 a5 32. Nd2 b5 33. Ra1 Rxd2+ 34. Kxd2 Nxb3+ 35. Kc2 Nxa1+ 36. Kb2 Kf7 37. Kxa1 Ke6 38. Kb2 Kd5 39. Kc2 Kd4 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.11"]
[Round "6"]
[White "Koischwitz, Wanja"]
[Black "Karpa, Adrian"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1773"]
[BlackElo "1852"]
[PlyCount "112"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 d6 5. 0-0 0-0 6. b3 Nc6 7. Bb2 Nh5 8. Nbd2 e5 9. dxe5 dxe5 10. Be4 f6 11. Bxc6 bxc6 12. Qe2 Qe8 13. Rfd1 f5 14. Qc4+ Be6 15. Qc5 Bd5 16. c4 Bxf3 17. Nxf3 Nf6 18. Qxe5 Qc8 19. Qc3 f4 20. e4 Rf7 21. e5 Ng4 22. h3 Nh6 23. Rd2 Re7 24. Rad1 Nf7 25. Re2 g5 26. c5 g4 27. hxg4 Qxg4 28. Qc4 Re6 29. Nh2 Qf5 30. Rde1 Ng5 31. f3 h5 32. Rd2 h4 33. Red1 h3 34. Rd8+ Rxd8 35. Rxd8+ Kh7 36. Qd3 Qxd3 37. Rxd3 hxg2 38. Kxg2 Re7 39. Ng4 Ne6 40. Nf6+ Kg6 41. Rd2 Nxc5 42. Kh3 Ne6 43. Rg2+ Kf5 44. Rc2 c5 45. Rc4 Bxf6 46. exf6 Ng5+ 47. Kg2 Re2+ 48. Kf1 Rxb2 49. Rxc5+ Kxf6 50. Ra5 Nxf3 51. Rxa7 Ke5 52. Ra8 Nh2+ 53. Kg1 f3 54. Re8+ Kf4 55. Rf8+ Kg3 56. Rg8+ Ng4 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.11"]
[Round "5"]
[White "Westphal, Julian"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1698"]
[BlackElo "1773"]
[PlyCount "54"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. e3 Nf6 4. cxd5 Nxd5 5. Nf3 e6 6. a3 Be7 7. Bd3 Nb6 8. 0-0 0-0 9. Qc2 g6 10. Nbd2 Bf6 11. b4 a6 12. Bb2 Bd7 13. Ne4 Bg7 14. Nc5 Qc8 15. h4 Ne7 16. h5 Bc6 17. hxg6 Nxg6 18. Bxg6 hxg6 19. Ng5 Re8 20. Kh2 e5 21. Nf3 Qg4 22. Nb3 Bxf3 23. gxf3 Qxf3 24. Qxc7 exd4 25. Nxd4 Bxd4 26. Bxd4 Re4 27. Qg3 Qh5+ 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.10"]
[Round "4"]
[White "Koischwitz, Wanja"]
[Black "Kramer, Wolfgang"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1773"]
[BlackElo "2034"]
[PlyCount "94"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. e3 Bg4 4. Be2 e6 5. 0-0 Nf6 6. Nbd2 Qd7 7. c4 Be7 8. b3 h5 9. cxd5 Nxd5 10. Bb2 h4 11. h3 Bh5 12. Bb5 a6 13. Bxc6 Qxc6 14. Rc1 Qd7 15. Nc4 f6 16. e4 Nf4 17. Qd2 Nxh3+ 18. Kh2 Bxf3 19. gxf3 Ng5 20. Qf4 Nf7 21. Ne3 g5 22. Qg4 0-0-0 23. d5 e5 24. Nf5 Kb8 25. Rc2 Nh6 26. Nxh6 Rxh6 27. Rfc1 Bd6 28. Rc4 Qe7 29. R1c2 h3 30. Bc1 Rh4 31. Qg1 Qd7 32. Be3 g4 33. Bc5 gxf3 34. Bxd6 cxd6 35. Rc7 Qxc7 36. Rxc7 Kxc7 37. Qg7+ Rd7 38. Qxf6 Rf4 39. Qg6 a5 40. a3 Rff7 41. Qg5 Rg7 42. Qc1+ Kb8 43. Qe3 Rg2+ 44. Kh1 Rc7 45. Qd2 Rcg7 46. Qd1 Rxf2 47. Qe1 Rgg2 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.09"]
[Round "3"]
[White "Welz, Peter"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2162"]
[BlackElo "1773"]
[PlyCount "59"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Bg4 10. Be2 Be7 11. 0-0 0-0 12. b3 f6 13. exf6 Bxf6 14. Ne4 Bxf3 15. Nxf6+ Qxf6 16. Bxf3 Qe7 17. Qe2 Rad8 18. Rad1 a5 19. Bf2 a4 20. Rfe1 axb3 21. axb3 Na5 22. Rd3 Qb4 23. Qxe6+ Kh8 24. Bh4 Rd7 25. c5 Rxd4 26. Rxd4 Qxd4+ 27. Bf2 Qb4 28. cxb6 c6 29. Qe7 Qf4 30. Be3 1-0

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.07"]
[Round "1"]
[White "Gross, Thorsten"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "B05"]
[WhiteElo "2163"]
[BlackElo "1773"]
[PlyCount "98"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3 Bh5 6. exd6 cxd6 7. Bb5+ Nd7 8. 0-0 e6 9. Be2 Be7 10. c4 N5b6 11. b3 0-0 12. Bb2 Bf6 13. Nc3 Re8 14. Qd2 d5 15. c5 Bxf3 16. Bxf3 Nc8 17. b4 a6 18. a4 Ne7 19. Nd1 Nf5 20. Qd3 Nh4 21. Bg4 Qc7 22. g3 Ng6 23. Ne3 a5 24. b5 Rac8 25. Rfc1 Be7 26. Qd2 Bg5 27. b6 Qb8 28. Ra3 f5 29. Bh5 f4 30. Nf1 Nf6 31. Bxg6 hxg6 32. g4 Ne4 33. Qxa5 f3 34. Rc2 Rf8 35. Nh2 Nxf2 36. Rxf2 Qg3+ 37. Kf1 Qxh3+ 38. Ke1 Bh4 39. Qd2 Qxh2 40. Kd1 Qxf2 41. Qxf2 Bxf2 42. a5 Bg3 43. Ra1 f2 44. Ke2 e5 45. a6 exd4 46. axb7 Rxc5 47. Bxd4 f1Q+ 48. Rxf1 Rxf1 49. Bxc5 Rf7 0-1

[Event "Berlin Lichtenberger op 9th"]
[Site "Berlin"]
[Date "2010.08.07"]
[Round "2"]
[White "Koischwitz, Wanja"]
[Black "Fischer, Daniel2222"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "1773"]
[BlackElo "2089"]
[PlyCount "91"]
[EventDate "2010.08.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 g6 3. e3 Bg7 4. b3 Nd7 5. Bb2 e5 6. dxe5 Nxe5 7. Nxe5 Bxe5 8. Bxe5 dxe5 9. Qxd8+ Kxd8 10. Bc4 Ke7 11. Nc3 c6 12. 0-0-0 Nf6 13. Rd2 b5 14. Bd3 Bf5 15. Bxf5 gxf5 16. Rhd1 Rad8 17. f3 Rxd2 18. Rxd2 Rg8 19. g3 h5 20. f4 exf4 21. exf4 h4 22. Re2+ Kd6 23. Rd2+ Kc5 24. Rd3 Ne4 25. gxh4 Rg1+ 26. Kb2 Rg4 27. Nxe4+ fxe4 28. Rh3 Rg6 29. h5 Rh6 30. Kc3 b4+ 31. Kd2 Kd4 32. Ke2 f5 33. Kd2 e3+ 34. Rxe3 Rxh5 35. h3 Rh4 36. c3+ bxc3+ 37. Rxc3 c5 38. Rc4+ Kd5 39. Ra4 Rxh3 40. Rxa7 Rh2+ 41. Ke3 Rh3+ 42. Kf2 Rc3 43. Re7 Kd4 44. Re5 Rc2+ 45. Re2 Rc3 46. Re5 1/2-1/2

[Event "Berlin qualification op"]
[Site "Berlin"]
[Date "2010.04.03"]
[Round "1"]
[White "Koischwitz, Wanja"]
[Black "Niechotz, Christopher"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1732"]
[BlackElo "2070"]
[PlyCount "84"]
[EventDate "2010.04.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 0-0 5. 0-0 d6 6. Nbd2 Nbd7 7. b3 e5 8. dxe5 dxe5 9. Bb2 e4 10. Ng5 Qe7 11. c4 h6 12. Nh3 Ne5 13. Nf4 c6 14. Qc2 Rd8 15. Rfd1 Bf5 16. c5 Nd3 17. Bxd3 exd3 18. Qc1 g5 19. e4 gxf4 20. exf5 Rd5 21. b4 Qd7 22. Nc4 Qxf5 23. Nd6 Qg4 24. h3 Qh4 25. Qc4 b5 26. Qb3 f3 27. Rxd3 Rxd3 28. Qxd3 Qxb4 29. Qxf3 Qxb2 30. Re1 Qb4 31. Qe3 Rd8 32. Nxf7 Kxf7 33. Qe7+ Kg6 34. Rf1 Rd7 35. Qe5 Qd4 36. Qg3+ Kh7 37. Kh1 Ne4 38. Qf3 Kg8 39. Qf5 Rf7 40. Qc8+ Rf8 41. Qe6+ Kh8 42. Qxc6 Ng3+ 0-1

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.11.03"]
[Round "7.19"]
[White "Koischwitz, Wanja"]
[Black "Adam, Hanna"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "1720"]
[BlackElo "1364"]
[PlyCount "58"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. 0-0 Bd6 7. Nbd2 0-0 8. dxc5 Bxc5 9. Qe2 h6 10. e4 dxe4 11. Nxe4 Be7 12. Rd1 Qc7 13. Nxf6+ Bxf6 14. Qe4 Rd8 15. Be3 Ne5 16. Qh7+ Kf8 17. Nxe5 Bxe5 18. h3 Bd7 19. b4 b6 20. Rac1 Ke7 21. Be2 Rh8 22. Qc2 Bc6 23. c4 Rad8 24. b5 Rxd1+ 25. Rxd1 Bxb5 26. Qb3 Bd7 27. Bc1 Rd8 28. Ba3+ Ke8 29. Qc2 g6 1/2-1/2

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.10.26"]
[Round "6.14"]
[White "Koischwitz, Wanja"]
[Black "Korell, Klaus Peter"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1720"]
[BlackElo "2008"]
[PlyCount "72"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. 0-0 Bd6 7. Nbd2 0-0 8. dxc5 Bxc5 9. Qe2 e5 10. e4 d4 11. Nb3 Bb6 12. cxd4 Nxd4 13. Nbxd4 Bxd4 14. Nxd4 Qxd4 15. Be3 Qb4 16. a3 Qe7 17. Rac1 b6 18. Bd2 Rd8 19. Bb4 Qb7 20. f3 Be6 21. Ba6 Qd7 22. Rfd1 Qe8 23. Bd6 Bc8 24. Bb5 Bd7 25. Bxd7 Rxd7 26. Rc7 Rad8 27. Rc6 Qe6 28. Qc4 Qxc4 29. Rxc4 Ne8 30. Rc2 Nxd6 31. Rcd2 f6 32. g3 Kf7 33. f4 Ke6 34. fxe5 fxe5 35. Re2 Rc8 36. Kg2 Rc4 0-1

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.10.12"]
[Round "5.21"]
[White "Huth, Michael"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1322"]
[BlackElo "1720"]
[PlyCount "72"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 c6 6. Bc4 e6 7. d4 b6 8. Bxd5 cxd5 9. b4 bxc5 10. bxc5 Nc6 11. Nf3 Ba6 12. Qa4 Bc4 13. Rb1 Be7 14. Be3 0-0 15. Nd2 Bd3 16. Rd1 Rb8 17. a3 a5 18. Nf3 Bc4 19. Nd2 Ba6 20. Qc2 f6 21. f4 fxe5 22. fxe5 Bh4+ 23. g3 Bg5 24. Bf2 Qe8 25. Nf1 Qf7 26. h4 Bh6 27. g4 Qf3 28. Rg1 Bxf1 29. Kxf1 Be3 30. Rd2 Bxf2 31. Rxf2 Qh3+ 32. Ke1 Rxf2 33. Kxf2 Rf8+ 34. Ke1 Qe3+ 35. Ne2 Nxd4 36. Qd2 Nf3+ 0-1

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.10.05"]
[Round "4.13"]
[White "Koischwitz, Wanja"]
[Black "Hankow, Bert Juergen"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1720"]
[BlackElo "2002"]
[PlyCount "64"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. 0-0 Bd6 7. Nbd2 0-0 8. dxc5 Bxc5 9. Qe2 Qc7 10. e4 h6 11. e5 Ng4 12. Nb3 Bb6 13. Bf4 f6 14. Rae1 fxe5 15. Bg3 Qf7 16. Nfd2 Nf6 17. Kh1 e4 18. Bc2 e5 19. f3 e3 20. Nb1 Nh5 21. f4 exf4 22. Bh4 g5 23. Bg3 Nf6 24. Bxf4 gxf4 25. Rxf4 Qg7 26. h3 Bd7 27. Ref1 Ne4 28. Bxe4 dxe4 29. Qc4+ Kh8 30. Qxe4 Rxf4 31. Qxf4 e2 32. Re1 Rf8 0-1

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.09.28"]
[Round "3.8"]
[White "Lohmar, Joerg"]
[Black "Koischwitz, Wanja"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2183"]
[BlackElo "1720"]
[PlyCount "57"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 0-0 6. Nbd2 Nbd7 7. Bd3 Qe7 8. Ne5 c5 9. c3 cxd4 10. exd4 h6 11. Qe2 Bxe5 12. Bxe5 Nxe5 13. Qxe5 Nd7 14. Qe2 e5 15. dxe5 Nxe5 16. 0-0-0 Nxd3+ 17. Qxd3 Be6 18. Qd4 Rfc8 19. f4 Bf5 20. Rhe1 Qd6 21. g4 Bh7 22. Re5 a5 23. Rxd5 Rxc3+ 24. Qxc3 Qxd5 25. f5 Qg2 26. Qd4 Qc6+ 27. Nc4 g6 28. f6 Qc7 29. a4 1/2-1/2

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.09.21"]
[Round "2.11"]
[White "Koischwitz, Wanja"]
[Black "Schmalzried, Volker"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1720"]
[BlackElo "1875"]
[PlyCount "127"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Be2 cxd4 5. exd4 Nf6 6. 0-0 0-0 7. b3 d5 8. Bb2 Nc6 9. Nbd2 Bf5 10. Nh4 Bd7 11. f4 Ne4 12. Nhf3 Qb6 13. Nxe4 dxe4 14. Ne5 Nxe5 15. fxe5 Bxe5 16. Kh1 Bg7 17. c4 Rad8 18. c5 Qc7 19. b4 Bc6 20. b5 Bd5 21. Qa4 e5 22. Rac1 exd4 23. Bxd4 Bxd4 24. Qxd4 Bxa2 25. Qxe4 Rfe8 26. Qc2 Bd5 27. Bf3 Bxf3 28. Rxf3 Re5 29. Rc3 Rde8 30. Qf2 Re2 31. Qg3 Qxg3 32. hxg3 Rc8 33. Ra3 Rb2 34. c6 bxc6 35. bxc6 Rb6 36. Rac3 a5 37. c7 Rb7 38. Kh2 a4 39. Ra3 Rbxc7 40. Rxc7 Rxc7 41. Rxa4 Kg7 42. Kh3 h5 43. Ra8 g5 44. Ra5 Kg6 45. Ra6+ f6 46. Ra8 Rc1 47. Kh2 Re1 48. Rg8+ Kf5 49. Rf8 Re4 50. Rh8 Kg4 51. Rh6 f5 52. Rd6 h4 53. Rd3 hxg3+ 54. Rxg3+ Kf4 55. Rf3+ Ke5 56. Ra3 g4 57. Ra5+ Kf6 58. Ra6+ Kg5 59. Ra8 Re3 60. Rg8+ Kf4 61. Ra8 g3+ 62. Kh3 Re1 63. Ra4+ Re4 64. Ra7 1/2-1/2

[Event "Berlin Eckbauer op 12th"]
[Site "Berlin"]
[Date "2009.09.14"]
[Round "1.5"]
[White "Kampf, Guenther"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "B03"]
[WhiteElo "2021"]
[BlackElo "1720"]
[PlyCount "90"]
[EventDate "2009.09.14"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nf3 e6 8. Nc3 Be7 9. Be3 0-0 10. Bd3 Bxd3 11. Qxd3 f6 12. exf6 Bxf6 13. Ne4 Bh4+ 14. Kd2 h6 15. Nc5 Qe7 16. b3 N8d7 17. Nxd7 Nxd7 18. Qe4 Bf6 19. Qxb7 c5 20. Kc2 cxd4 21. Nxd4 Qf7 22. Rad1 Qg6+ 23. Kc1 Bg5 24. Nc2 Nc5 25. Qc6 Nd3+ 26. Rxd3 Qxd3 27. Qxe6+ Kh8 28. Rd1 Rf1 29. Rxf1 Qxf1+ 30. Kb2 Bf6+ 31. Bd4 Bxd4+ 32. Nxd4 Qxg2+ 33. Qe2 Qxe2+ 34. Nxe2 Rf8 35. Kc3 Rf2 36. Kd3 Rxh2 37. c5 Rf2 38. b4 Kg8 39. c6 Rf7 40. b5 Kf8 41. Nf4 Ke7 42. c7 Kd7 43. Nd5 Kc8 44. a4 Rxc7 45. a5 Rd7 0-1

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.23"]
[Round "9"]
[White "Jabbusch, Burkhard"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2017"]
[BlackElo "1720"]
[PlyCount "109"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Bg4 3. e3 e6 4. d4 Nf6 5. Bd3 Bd6 6. Nbd2 0-0 7. 0-0 Nbd7 8. c3 c5 9. h3 Bf5 10. Qc2 cxd4 11. cxd4 Rc8 12. Qb1 Bg6 13. g4 Re8 14. Kg2 Nb6 15. Ne5 Bxd3 16. Qxd3 h6 17. Kg3 Bb4 18. Nef3 Nc4 19. Nxc4 Ne4+ 20. Kg2 Rxc4 21. a3 Ba5 22. Bd2 Qb6 23. b4 Bxb4 24. axb4 Rec8 25. Rfc1 Nxd2 26. Qxd2 Rxc1 27. Rxc1 Rxc1 28. Qxc1 Qxb4 29. h4 Qc4 30. Qb2 b6 31. Kf2 f6 32. g5 hxg5 33. hxg5 Kf7 34. Kg3 Qd3 35. Qc1 Qc4 36. Qh1 Qc2 37. Qh8 a5 38. Qb8 Qc6 39. Qa7+ Kf8 40. Nh4 Qe8 41. Qxb6 fxg5 42. fxg5 a4 43. Qd6+ Kg8 44. Kg4 Kh7 45. g6+ Kh8 46. Kh5 e5 47. dxe5 a3 48. Nf3 a2 49. Qa6 d4 50. exd4 Qd8 51. Ng5 Qg8 52. Nf7+ Qxf7 53. gxf7 g6+ 54. Kg5 Kg7 55. Qxg6+ 1-0

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.22"]
[Round "8"]
[White "Koischwitz, Wanja"]
[Black "Bauder, Herbert"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1720"]
[BlackElo "2027"]
[PlyCount "66"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 0-0 5. 0-0 d5 6. b3 c5 7. Bb2 cxd4 8. exd4 Nc6 9. Ne5 Bf5 10. Nxc6 bxc6 11. Nd2 Nd7 12. Nf3 Qa5 13. Nh4 Be6 14. f4 Nf6 15. f5 Bd7 16. fxg6 hxg6 17. Bd3 Bg4 18. Qc1 Kh7 19. Qe3 e6 20. Qg5 Bf5 21. Nxf5 exf5 22. Qh4+ Kg8 23. Rf3 Rfe8 24. a4 Re6 25. Raf1 Rae8 26. c3 Qd8 27. Rh3 Qe7 28. Bc1 Re1 29. Bh6 Rxf1+ 30. Bxf1 Qe1 31. Qxe1 Rxe1 32. Bxg7 Kxg7 33. Kf2 Rb1 1/2-1/2

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.20"]
[Round "6"]
[White "Uckar, Klaudijo"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1875"]
[BlackElo "1720"]
[PlyCount "52"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nf3 d6 4. Bc4 Nb6 5. Bxf7+ Kxf7 6. Ng5+ Kg8 7. e6 Qe8 8. Nf7 Bxe6 9. Nxh8 Kxh8 10. 0-0 Qg6 11. Qf3 Nc6 12. c3 Bf5 13. Na3 e5 14. Qg3 d5 15. Qxg6 Bxg6 16. d4 Bxa3 17. bxa3 exd4 18. cxd4 Nxd4 19. Be3 Nc2 20. Rac1 d4 21. Bf4 Nd5 22. Bd2 c5 23. h4 c4 24. h5 Bd3 25. Rfd1 Nxa3 26. Bg5 Nc3 0-1

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.19"]
[Round "5"]
[White "Koischwitz, Wanja"]
[Black "Tong, Lukas Fabian Chuan"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1720"]
[BlackElo "1869"]
[PlyCount "79"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Nc6 6. 0-0 Bd6 7. Nbd2 0-0 8. dxc5 Bxc5 9. b4 Be7 10. b5 Nb8 11. Bb2 a6 12. a4 Nbd7 13. Nb3 Qc7 14. Qe2 Nc5 15. Nxc5 Bxc5 16. c4 Be7 17. Rac1 Qa5 18. Ra1 Rd8 19. Rfc1 dxc4 20. Rxc4 Bd7 21. Ne5 axb5 22. Rf4 Be8 23. Ng4 Nd5 24. Nh6+ gxh6 25. Rg4+ Bg5 26. Rxg5+ hxg5 27. Qh5 f6 28. Qxh7+ Kf8 29. Qh8+ Ke7 30. Ba3+ b4 31. Qg7+ Kd6 32. Qf8+ Kc7 33. Rc1+ Bc6 34. Qf7+ Rd7 35. Qxe6 bxa3 36. e4 Qd2 37. Rxc6+ bxc6 38. exd5 cxd5 39. Bb5 Qc1+ 40. Bf1 0-1

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.18"]
[Round "4"]
[White "Kapp, Frank"]
[Black "Koischwitz, Wanja"]
[Result "0-1"]
[ECO "D20"]
[WhiteElo "1824"]
[BlackElo "1720"]
[PlyCount "84"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 c6 6. Nc3 Bf5 7. Nge2 e6 8. 0-0 Be7 9. Nxd5 exd5 10. Ng3 Bg6 11. Bd3 Qd7 12. f4 Bxd3 13. Qxd3 Na6 14. Be3 Nc7 15. Nf5 g6 16. Nxe7 Qxe7 17. f5 0-0-0 18. f6 Qb4 19. Rfc1 Ne6 20. Rc3 Kb8 21. a3 Qa5 22. Rac1 h5 23. Rb3 h4 24. Rb4 Ka8 25. Rb3 h3 26. g3 a6 27. Bd2 Qc7 28. Qe3 c5 29. dxc5 Rh5 30. c6 b5 31. Qc3 Rxe5 32. Qa5 Qa7+ 33. Kf1 Rf5+ 34. Bf4 Rc8 35. Rb4 Nd8 36. Rb3 Rxf6 37. Ke1 Re6+ 38. Kd2 Qf2+ 39. Kd3 Qe2+ 40. Kd4 Qe4+ 41. Kc3 Rcxc6+ 42. Kd2 Qe2# 0-1

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.16"]
[Round "3"]
[White "Koischwitz, Wanja"]
[Black "Moeller, Dirk Halvard"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1720"]
[BlackElo "1602"]
[PlyCount "55"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Be2 Bb7 5. 0-0 d5 6. Nbd2 Bd6 7. b3 0-0 8. Bb2 Nbd7 9. Ne5 a6 10. f4 c5 11. Rf3 Ne4 12. Rh3 f5 13. Bd3 Ndf6 14. Ndf3 Ng4 15. Qe2 b5 16. Bxe4 dxe4 17. Ng5 Rf6 18. Nxg4 fxg4 19. Qxg4 Rg6 20. Qh5 Qf6 21. Qxh7+ Kf8 22. Rb1 c4 23. bxc4 bxc4 24. d5 c3 25. Bxc3 Qxc3 26. Qh8+ Ke7 27. Rxb7+ Kf6 28. Rf7# 1-0

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.16"]
[Round "2"]
[White "Kuester, Manfred"]
[Black "Koischwitz, Wanja"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "1903"]
[BlackElo "1720"]
[PlyCount "93"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. e4 dxe4 5. Nxe4 Nf6 6. Nxf6+ Qxf6 7. Nf3 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 0-0 10. 0-0-0 Rd8 11. Bd3 h6 12. Ne5 c5 13. dxc5 Kf8 14. Ng4 Qd4 15. f4 Nc6 16. Qe3 h5 17. Qxd4 Rxd4 18. Ne5 Rxf4 19. Nxc6 bxc6 20. Be2 g6 21. b3 Rf2 22. Bf3 Rxa2 23. Kb1 Rf2 24. Bxc6 Rb8 25. Bb5 a6 26. Ba4 e5 27. c6 Bf5+ 28. Ka1 Rc8 29. Rhg1 Be4 30. Rd6 Ke7 31. Rgd1 Bxg2 32. Rd7+ Kf6 33. R1d6+ Kg5 34. Rd8 Rc7 35. R8d7 Rc8 36. c7 Rf6 37. c5 Rf2 38. Re7 f6 39. Rd8 Bh3 40. Rxc8 Bxc8 41. Bd7 Rc2 42. Bxc8 Rxc5 43. Bxa6 f5 44. c8Q Rxc8 45. Bxc8 e4 46. b4 f4 47. Re5+ 1-0

[Event "Berlin Lichtenberger op 8th"]
[Site "Berlin"]
[Date "2009.08.15"]
[Round "1"]
[White "Koischwitz, Wanja"]
[Black "Welz, Peter"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "1720"]
[BlackElo "2101"]
[PlyCount "154"]
[EventDate "2009.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. d4 f5 2. Bg5 g6 3. e3 Bg7 4. Nf3 c5 5. c3 Qb6 6. Qc2 Nf6 7. Nbd2 0-0 8. Nc4 Qc7 9. Bd3 b5 10. Ncd2 c4 11. Be2 Bb7 12. Bf4 Qd8 13. 0-0 Nc6 14. b3 d5 15. bxc4 bxc4 16. Rab1 Bc8 17. Ne5 Nxe5 18. Bxe5 Ne4 19. Bxg7 Kxg7 20. f3 Nf6 21. e4 e6 22. Rb2 f4 23. Rfb1 h5 24. Qa4 Qd7 25. Qa5 Rf7 26. Bd1 Qc7 27. Qa3 e5 28. exd5 Nxd5 29. Rb5 Ne3 30. Rxe5 Bf5 31. Ne4 Rb8 32. Rc1 Bxe4 33. fxe4 Qb7 34. Bf3 Qb2 35. Qxb2 Rxb2 36. Ra5 Rfb7 37. e5 Rb1 38. Rxb1 Rxb1+ 39. Kf2 Rb2+ 40. Ke1 Rc2 41. Rxa7+ Kh6 42. e6 Rc1+ 43. Kf2 Rc2+ 44. Be2 Ng4+ 45. Ke1 Rxc3 46. Kd2 Re3 47. Bxc4 Nf6 48. e7 Ne4+ 49. Kc2 Nd6 50. Bd3 Nc8 51. Ra6 Nxe7 52. d5 f3 53. gxf3 Rxf3 54. Re6 Nf5 55. Bxf5 Rxf5 56. d6 Rd5 57. Kc3 Kg7 58. Kc4 Rd2 59. a4 Rxh2 60. Kc5 Rd2 61. Kc6 h4 62. d7 h3 63. Re7+ Kf6 64. Re8 h2 65. Re1 g5 66. Kc7 g4 67. a5 g3 68. Rh1 g2 69. Rxh2 Rxd7+ 70. Kxd7 g1Q 71. Rh6+ Kg7 72. Ra6 Kf7 73. Kc7 Ke7 74. Kb7 Kd7 75. Rb6 Qg2+ 76. Ka6 Qe2+ 77. Rb5 Kc6 0-1

