[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.06"]
[Round "7"]
[White "Groebel, Aaron"]
[Black "Bertz, Siegfried"]
[Result "1-0"]
[ECO "B88"]
[WhiteElo "1666"]
[PlyCount "91"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. 0-0 0-0 9. Be3 Qc7 10. f4 Nc6 11. Qf3 Na5 12. Rae1 Bd7 13. Qg3 Nxb3 14. cxb3 b5 15. a3 Kh8 16. Rc1 Qb7 17. e5 Ne4 18. Qf3 d5 19. Qh5 g6 20. Qh6 Rfe8 21. Nf3 Bf8 22. Qh4 Bc8 23. Kh1 Qe7 24. Ng5 h6 25. Ncxe4 Kg7 26. Bc5 Qd8 27. Bxf8+ Rxf8 28. Nf6 Rh8 29. Nf3 d4 30. Qf2 Bb7 31. Rcd1 d3 32. Qe3 b4 33. Qxd3 Qa5 34. a4 Rhd8 35. Qe2 Qb6 36. Nd2 a5 37. Nc4 Qc5 38. Rxd8 Rxd8 39. Rd1 Rxd1+ 40. Qxd1 Qc6 41. Qd2 Ba6 42. Qd6 Qc8 43. Qd7 Qa8 44. Qe8 Qxe8 45. Nxe8+ Kf8 46. Ned6 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.05"]
[Round "6"]
[White "Bertz, Siegfried"]
[Black "Nestler, Reiner"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "2101"]
[PlyCount "94"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Bd3 g6 4. Ne2 c6 5. 0-0 Bg7 6. c4 e5 7. d5 cxd5 8. cxd5 0-0 9. Ng3 Ng4 10. h3 Nh6 11. Nd2 f5 12. exf5 Nxf5 13. Nde4 h6 14. Be3 Rf7 15. Qd2 b6 16. Rac1 Bb7 17. Bc4 Na6 18. b4 Rc8 19. Bb3 Rxc1 20. Rxc1 Nxe3 21. fxe3 h5 22. a3 Bh6 23. Rf1 Rxf1+ 24. Nxf1 Nc7 25. Qf2 Kg7 26. Nc3 Ba6 27. e4 Bf4 28. a4 Bxf1 29. Kxf1 Qg5 30. Nd1 Na6 31. a5 Bg3 32. Qe2 Nxb4 33. axb6 axb6 34. Qe3 Qf4+ 35. Qxf4 Bxf4 36. Nc3 Be3 37. Ke2 Bc5 38. Ba4 Kf6 39. Nb5 Kg5 40. Kf3 h4 41. Bd1 Nd3 42. Ke2 Nb2 43. Bb3 Kf4 44. Kd2 Kg3 45. Kc2 Kxg2 46. Kxb2 Kxh3 47. Nc7 Kg3 0-1

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.05"]
[Round "5"]
[White "Rutz, Matthias"]
[Black "Bertz, Siegfried"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2073"]
[PlyCount "52"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c6 3. Bxf6 exf6 4. c4 d6 5. Nc3 f5 6. e3 g6 7. g3 Bg7 8. Bg2 0-0 9. Nge2 Nd7 10. 0-0 Nf6 11. b4 Qc7 12. Rc1 Re8 13. Qd3 Qe7 14. b5 Bd7 15. Rb1 Rab8 16. Rfc1 Ne4 17. bxc6 Bxc6 18. Rb3 Qc7 19. Nb5 Bxb5 20. Rxb5 Nf6 21. Nf4 Bf8 22. h4 h5 23. Bf3 Rec8 24. Nd5 Nxd5 25. Bxd5 Be7 26. Bf3 Qd7 1/2-1/2

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.04"]
[Round "4"]
[White "Bertz, Siegfried"]
[Black "Stanke, Achim"]
[Result "1-0"]
[ECO "B12"]
[BlackElo "2158"]
[PlyCount "99"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d4 g6 3. f4 d5 4. e5 h5 5. Nf3 Nh6 6. Bd3 Bg4 7. c4 e6 8. cxd5 cxd5 9. 0-0 Nf5 10. Bxf5 Bxf5 11. Nc3 Nc6 12. Nb5 a6 13. Nd6+ Bxd6 14. exd6 Qxd6 15. Ne5 Nb4 16. Bd2 Nc2 17. Rc1 Rc8 18. Bc3 Ne3 19. Bb4 Qxb4 20. Rxc8+ Ke7 21. Qc1 Nc2 22. Rxc2 Bxc2 23. Qxc2 Qxd4+ 24. Kh1 Qb6 25. Rc1 Rf8 26. Qc7+ Qxc7 27. Rxc7+ Kd6 28. Rxb7 f6 29. Rd7+ Kc5 30. Nxg6 Rg8 31. Nh4 e5 32. Nf5 Rg4 33. Ne3 Rxf4 34. Rxd5+ Kc6 35. Ra5 Re4 36. Rxa6+ Kb5 37. Ra3 f5 38. Rb3+ Kc5 39. Kg1 f4 40. Rc3+ Kd6 41. Nc2 Re2 42. Kf1 Rd2 43. a4 e4 44. a5 e3 45. a6 Rd1+ 46. Ne1 Ra1 47. Ra3 Rxa3 48. bxa3 Kc6 49. Ke2 Kb6 50. Kf3 1-0

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.04"]
[Round "3"]
[White "Perkampus, Lars"]
[Black "Bertz, Siegfried"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1975"]
[PlyCount "66"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. e3 Be7 4. Nf3 0-0 5. Bd3 b6 6. Nbd2 Bb7 7. c3 h6 8. Bf4 c5 9. e4 d5 10. e5 Ne4 11. Qe2 Ng5 12. h4 Nxf3+ 13. Nxf3 cxd4 14. cxd4 Nc6 15. a3 Rc8 16. b4 Qd7 17. h5 f5 18. exf6 Bxf6 19. Be5 Bxe5 20. Nxe5 Nxe5 21. Qxe5 Rc3 22. Rh3 Qc8 23. Qe3 Kh8 24. a4 e5 25. dxe5 d4 26. Qxd4 Rc1+ 27. Rxc1 Qxc1+ 28. Ke2 Bxg2 29. f4 Bxh3 30. f5 Bf1+ 31. Kf2 Bxd3 32. Qxd3 Qf4+ 33. Qf3 Qxe5 0-1

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.03"]
[Round "1"]
[White "Bertz, Siegfried"]
[Black "Khudovekov, Stanislav"]
[Result "0-1"]
[ECO "B08"]
[BlackElo "2048"]
[PlyCount "82"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 d6 3. d4 Nf6 4. Nc3 g6 5. Bc4 Bg7 6. 0-0 0-0 7. h3 e5 8. Be3 h6 9. Qd3 Kh7 10. dxe5 dxe5 11. Rad1 Qe7 12. Nd5 Nxd5 13. exd5 Nd8 14. d6 cxd6 15. Qxd6 Qxd6 16. Rxd6 Be6 17. Bxe6 Nxe6 18. c4 b6 19. b4 Rac8 20. Rc1 Rc7 21. Rd5 Rfc8 22. Nxe5 Bxe5 23. Rxe5 Rxc4 24. Rb1 Rd8 25. a4 Rd6 26. a5 f6 27. Rxe6 Rxe6 28. Rd1 Rc7 29. Rd8 bxa5 30. bxa5 g5 31. Rd5 Kg6 32. Rb5 Re5 33. Rxe5 fxe5 34. Kf1 a6 35. Ke2 Rd7 36. Kf3 Kf5 37. g4+ Ke6 38. Ke4 Rd5 39. Bb6 Rd1 40. Kf3 Rd3+ 41. Kg2 e4 0-1

[Event "Blankenburg op-A 18th"]
[Site "Blankenburg"]
[Date "2013.10.03"]
[Round "2"]
[White "Zerfass, Otfried"]
[Black "Bertz, Siegfried"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1913"]
[PlyCount "84"]
[EventDate "2013.10.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bb5+ Bd7 4. a4 Nc6 5. f4 Nf6 6. Nf3 e6 7. 0-0 Be7 8. d3 0-0 9. Bd2 a6 10. Bc4 Nd4 11. Ne2 d5 12. exd5 exd5 13. Ba2 Nxf3+ 14. Rxf3 Bc6 15. f5 Qd7 16. Nf4 b5 17. axb5 axb5 18. Rf1 Ra7 19. c4 Rfa8 20. cxd5 Bxd5 21. Nxd5 Nxd5 22. Qb3 c4 23. dxc4 bxc4 24. Qxc4 Bf6 25. Qxd5 Qxd5 26. Bxd5 Rxa1 27. Bxa8 Rxa8 28. Bc3 Bxc3 29. bxc3 Ra2 30. Rc1 Kf8 31. c4 Ke7 32. c5 Kd7 33. g4 Kc6 34. h3 Rd2 35. Re1 Rd7 36. Kg2 Kxc5 37. h4 Ra7 38. Kf3 Kd5 39. Kf4 Kd6 40. g5 Ra4+ 41. Re4 Rxe4+ 42. Kxe4 f6 1/2-1/2

[Event "DDR-ch M957 corr"]
[Site "DDR"]
[Date "1990.??.??"]
[Round "?"]
[White "Bertz, Siegfried"]
[Black "Birkner, Frank"]
[Result "1/2-1/2"]
[ECO "B63"]
[PlyCount "54"]
[EventDate "1990.07.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 Nxd4 9. Qxd4 0-0 10. e5 dxe5 11. Qxe5 Qb6 12. Be3 Ng4 13. Bxb6 Nxe5 14. Bc7 Ng4 15. Bg3 Nf6 16. Bb5 a6 17. Be2 Bd7 18. Bf3 Bc6 19. Bxc6 bxc6 20. Bd6 Bxd6 21. Rxd6 Rfc8 22. Na4 Rab8 23. Rhd1 Kf8 24. Nc5 Ke7 25. Nxa6 Rb6 26. Nc5 Rb5 27. b4 Rxb4 1/2-1/2

[Event "DDR-ch M957 corr"]
[Site "DDR"]
[Date "1990.??.??"]
[Round "?"]
[White "Bertz, Siegfried"]
[Black "Breitschuh, Ulrich"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "79"]
[EventDate "1990.07.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bb3 h6 9. N5f3 a5 10. a3 a4 11. Ba2 c5 12. dxc5 Bxc5 13. Ne5 0-0 14. Ngf3 Nbd7 15. Nd3 Bb6 16. Bf4 Bc7 17. Bd2 b6 18. 0-0-0 Ba6 19. Nfe1 Qe7 20. Qf3 Rac8 21. Nb4 Ne5 22. Nc6 Nxc6 23. Qxc6 Be2 24. Qxa4 Bxd1 25. Kxd1 Rfd8 26. Nd3 Qd7 27. Qxd7 Rxd7 28. f3 Rcd8 29. Ke2 Nd5 30. Bc4 Ne7 31. Bc3 Nf5 32. Nb4 Bf4 33. Bd3 Ne7 34. g3 Bg5 35. f4 Bf6 36. Bxf6 gxf6 37. Kf3 Rd6 38. Re1 Nc6 39. Nxc6 Rxc6 40. a4 1/2-1/2

[Event "DDR-ch M957 corr"]
[Site "DDR"]
[Date "1990.??.??"]
[Round "?"]
[White "Bertz, Siegfried"]
[Black "Hahmann, Hartmut"]
[Result "1-0"]
[ECO "B07"]
[PlyCount "49"]
[EventDate "1990.07.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 h6 5. Bh4 Bg7 6. f4 c6 7. Nf3 b5 8. e5 dxe5 9. fxe5 Nd5 10. Qd2 a5 11. Be2 b4 12. Nxd5 Qxd5 13. c4 Qd8 14. 0-0 Bf5 15. Bd3 Be6 16. b3 0-0 17. Bc2 Ra7 18. Qe2 Rd7 19. Rad1 Qc7 20. Bg3 Qb6 21. Bf2 Qc7 22. Nh4 g5 23. Qe4 f5 24. exf6 Rxf6 25. Bg3 1-0

[Event "DDR-ch M957 corr"]
[Site "DDR"]
[Date "1990.??.??"]
[Round "?"]
[White "Joerges, Eberhard"]
[Black "Bertz, Siegfried"]
[Result "0-1"]
[ECO "A52"]
[PlyCount "52"]
[EventDate "1990.07.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Bd2 0-0 7. Be2 a5 8. Nc3 Ngxe5 9. Nxe5 Nxe5 10. 0-0 d6 11. Na4 Bb4 12. b3 f5 13. f4 Ng4 14. Bc1 Be6 15. Bxg4 fxg4 16. f5 Bd7 17. a3 Bxa4 18. axb4 Bc6 19. bxa5 Qg5 20. Rf4 Rxf5 21. Rxg4 Qf6 22. Bd2 h5 23. Rg3 h4 24. Rg4 h3 25. Qe1 hxg2 26. Rf4 Rxf4 0-1

[Event "DDR-ch M957 corr"]
[Site "DDR"]
[Date "1990.??.??"]
[Round "?"]
[White "Leisebein, Peter"]
[Black "Bertz, Siegfried"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "40"]
[EventDate "1990.07.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4 Qb6 5. e4 Nf6 6. Nf3 d6 7. Bc4 e6 8. Bb3 Be7 9. Be3 Qa5 10. 0-0-0 Bd7 11. Ng5 h6 12. Nf3 b5 13. Qg3 b4 14. Ne2 g6 15. Nd2 Qc7 16. f4 Na5 17. Bd4 Nxb3+ 18. Nxb3 Rc8 19. Qd3 e5 20. Bf2 Nxe4 0-1

[Event "DDR-ch M957 corr"]
[Site "DDR"]
[Date "1990.??.??"]
[Round "?"]
[White "Papenbrock, Juergen"]
[Black "Bertz, Siegfried"]
[Result "0-1"]
[ECO "A52"]
[PlyCount "92"]
[EventDate "1990.07.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "DDR"]
[SourceTitle "Corr 2002"]
[Source "ChessBase"]
[SourceDate "2002.05.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.05.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nbd2 Qe7 7. a3 Ngxe5 8. Nxe5 Nxe5 9. e3 Bxd2+ 10. Qxd2 d6 11. Qc3 f6 12. c5 dxc5 13. Rc1 b6 14. Bxe5 Qxe5 15. Bb5+ Bd7 16. Bxd7+ Kxd7 17. Rd1+ Ke7 18. Qc2 g6 19. 0-0 Rhd8 20. f4 Qxe3+ 21. Kh1 Rxd1 22. Qxd1 Rd8 23. Qb1 Qd3 24. Qe1+ Kf7 25. f5 Re8 26. fxg6+ hxg6 27. Qf2 Qf5 28. Qg1 Qe5 29. Qf2 Re7 30. h3 Kg7 31. b3 Qd4 32. Qf3 a5 33. Rd1 Qe3 34. Qd5 a4 35. bxa4 Qxa3 36. Qd8 c4 37. a5 bxa5 38. Rd7 Qa1+ 39. Kh2 Qe5+ 40. g3 Rxd7 41. Qxd7+ Kh6 42. Qd8 Qe2+ 43. Kg1 Qd3 44. Qf8+ Kh5 45. Kg2 Qd5+ 46. Kf2 Kg5 0-1

