[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.26"]
[Round "11"]
[White "Sieber, Bert"]
[Black "Wildermuth, Nikolas Karl"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1453"]
[BlackElo "1564"]
[PlyCount "74"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 d6 6. Nf3 e5 7. 0-0 Nge7 8. a3 a5 9. Rb1 0-0 10. Nd2 f5 11. Nd5 Bf6 12. b4 axb4 13. axb4 h5 14. b5 Nd4 15. Nb3 Ne6 16. e3 Kg7 17. f4 Nxd5 18. Bxd5 Ra7 19. Bb2 b6 20. Ra1 Rff7 21. Qc2 Rfe7 22. Bg2 Qh8 23. h4 Kf8 24. Kh2 exf4 25. Bxf6 fxg3+ 26. Kxg3 Qxf6 27. Rae1 Ra3 28. Rf2 Qe5+ 29. Kf3 Bb7+ 30. Ke2 Rxb3 31. Qxb3 Nd4+ 32. Kd2 Nxb3+ 33. Kc2 Nd4+ 34. Kc1 Bxg2 35. Rxg2 Nb3+ 36. Kc2 Nd4+ 37. Kc1 Nf3 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.25"]
[Round "9"]
[White "Sieber, Bert"]
[Black "Hoke, Adrian Neo"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "1453"]
[BlackElo "1690"]
[PlyCount "64"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bf4 a6 6. cxd5 exd5 7. e3 Be7 8. Bd3 0-0 9. 0-0 c6 10. Qc2 Re8 11. Rab1 Nf8 12. h3 a5 13. a3 Nh5 14. Bh2 g6 15. b4 Ng7 16. Rfc1 Nd7 17. Na4 Ne6 18. Nc5 Nexc5 19. bxc5 Bf6 20. Rb3 Bg7 21. Rcb1 f5 22. Bf1 Kh8 23. Ne1 Re6 24. Nd3 Qe8 25. Re1 Kg8 26. Qd2 Bf6 27. Nf4 Re7 28. Bd3 Bxd4 29. Bxf5 Bxc5 30. Bxg6 hxg6 31. Nxd5 cxd5 32. Qxd5+ Qf7 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.25"]
[Round "10"]
[White "Sinnhoefer, Joshua"]
[Black "Sieber, Bert"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1523"]
[BlackElo "1453"]
[PlyCount "52"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. 0-0 Nxd4 10. Bxd4 Bd7 11. f4 Bc6 12. Bf3 a5 13. a4 Nd7 14. Bxg7 Kxg7 15. Qd4+ Kg8 16. Kh1 Qb6 17. Qxb6 Nxb6 18. Be2 Rac8 19. Nd5 Bxd5 20. cxd5 Rc2 21. Bf3 Rfc8 22. e5 R8c5 23. Rfd1 Rxb2 24. Rdc1 Nxa4 25. h3 Rxc1+ 26. Rxc1 Nc5 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.24"]
[Round "8"]
[White "Pikalow, Michael"]
[Black "Sieber, Bert"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1637"]
[BlackElo "1453"]
[PlyCount "110"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 Nxd4 9. Bxd4 0-0 10. 0-0 Bd7 11. Qd2 Bc6 12. f3 a6 13. b4 Bd7 14. Rab1 Be6 15. Rfc1 Nd7 16. Bxg7 Kxg7 17. Qd4+ Kg8 18. Nd5 Bxd5 19. cxd5 Rc8 20. f4 Qb6 21. Qxb6 Nxb6 22. Bg4 f5 23. exf5 gxf5 24. Bf3 Rfd8 25. Kf2 Kf7 26. Re1 Rc2+ 27. Re2 Rdc8 28. Rb2 Rxe2+ 29. Kxe2 Rc4 30. Ke3 Kf6 31. Rb3 Rc1 32. b5 a5 33. h3 Rc2 34. a3 a4 35. Rd3 Rc5 36. g4 fxg4 37. hxg4 Rxb5 38. g5+ Kg6 39. Be4+ Kg7 40. Rd1 Kf7 41. Rh1 Nxd5+ 42. Kf3 Rb3+ 43. Kg4 Ne3+ 44. Kh5 Kg7 45. Rc1 d5 46. Bb1 Nc4 47. Ba2 Rxa3 48. Bxc4 dxc4 49. Rxc4 b5 50. Re4 Kf7 51. f5 Rf3 52. g6+ hxg6+ 53. fxg6+ Kf6 54. g7 Kxg7 55. Rxe7+ Rf7 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.23"]
[Round "6"]
[White "Duduka, Artem"]
[Black "Sieber, Bert"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1606"]
[BlackElo "1453"]
[PlyCount "117"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. 0-0 e5 6. c3 f5 7. Re1 Nf6 8. exf5 Be7 9. Qc2 e4 10. Ng5 Bxf5 11. f3 d5 12. fxe4 Nxe4 13. Nxe4 Bxe4 14. d3 Bg6 15. Qe2 Kf7 16. Qe6+ Kf8 17. Rf1+ Bf6 18. Bf4 Bf7 19. Qxc6 Rc8 20. Qb7 Bg6 21. Be5 Bxd3 22. Bxf6 gxf6 23. Rxf6+ Qxf6 24. Qxc8+ Kg7 25. Qd7+ Kg6 26. Qg4+ Kf7 27. Nd2 Rd8 28. Qf3 Qxf3 29. Nxf3 Kf6 30. Rd1 Be4 31. Kf2 Rb8 32. b3 a5 33. Nd2 Bc2 34. Rc1 Bf5 35. Kf3 Rg8 36. h3 h5 37. Re1 Be6 38. c4 a4 39. Rc1 axb3 40. axb3 Ke5 41. Re1+ Kd6 42. Ra1 Rc8 43. Ra6+ Rc6 44. Rxc6+ Kxc6 45. Kf4 d4 46. Ke4 Bg8 47. b4 cxb4 48. Kxd4 Be6 49. Nb3 Bg8 50. Nc5 Kb6 51. Nd3 Ka5 52. Nb2 Bf7 53. g4 Be6 54. gxh5 Bf7 55. h6 Bg8 56. Ke5 Kb6 57. Kf6 Kc5 58. Kg7 Bxc4 59. h7 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.23"]
[Round "7"]
[White "Sieber, Bert"]
[Black "Schwartz, Oliver"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "1453"]
[BlackElo "1512"]
[PlyCount "80"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. b3 b4 5. Nd2 g6 6. Bb2 Bg7 7. e4 d6 8. f4 0-0 9. Rb1 Nbd7 10. Bd3 Nb6 11. Ngf3 a5 12. a4 bxa3 13. Bxa3 Rb8 14. 0-0 Na8 15. Qe2 Nc7 16. h3 Na6 17. Kh2 Nb4 18. Bxb4 Rxb4 19. f5 Bd7 20. Bc2 Qc7 21. Rbe1 a4 22. e5 dxe5 23. Nxe5 axb3 24. Bxb3 Ba4 25. Bxa4 Rxa4 26. Kg1 Nh5 27. Nc6 Ng3 28. Qxe7 Bd4+ 29. Nxd4 Qxe7 30. Rxe7 Nxf1 31. Kxf1 cxd4 32. f6 Rd8 33. Re4 d3 34. g4 Kf8 35. Rd4 Ke8 36. Rxd3 Kd7 37. Kf2 Kd6 38. Kf3 Ke5 39. g5 Kf5 40. h4 Rb4 1/2-1/2

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.22"]
[Round "5"]
[White "Sieber, Bert"]
[Black "Felten, Maximilian"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "1453"]
[BlackElo "1705"]
[PlyCount "44"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. e3 Nf6 4. Nc3 c6 5. b3 Be7 6. Bb2 Nbd7 7. Qc2 a6 8. Rg1 b5 9. g4 h6 10. Nd4 Bb7 11. f4 c5 12. Nde2 b4 13. Nd1 g5 14. f5 exf5 15. Qxf5 dxc4 16. bxc4 Be4 17. Qf2 Bd6 18. Nc1 Be5 19. d3 Bb7 20. Kd2 Bxb2 21. Nxb2 Ne5 22. Be2 Ne4+ 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.21"]
[Round "4"]
[White "Chassard, Cedric"]
[Black "Sieber, Bert"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1644"]
[BlackElo "1453"]
[PlyCount "149"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. c4 d6 7. Nc3 Nf6 8. Be2 Nxd4 9. Bxd4 0-0 10. 0-0 a5 11. Qd2 a4 12. Rfd1 Qa5 13. Bxf6 Bxf6 14. Nd5 Rd8 15. Nxf6+ exf6 16. Qxa5 Rxa5 17. Rd2 Kf8 18. Rad1 Ke7 19. Rd5 Rc5 20. b4 axb3 21. axb3 Be6 22. R5d4 Rcc8 23. R4d2 f5 24. exf5 Bxf5 25. Bf3 Rb8 26. g4 Be6 27. Re1 b5 28. Bd5 bxc4 29. bxc4 Kf6 30. Bxe6 fxe6 31. g5+ Kf7 32. Ra1 Ke7 33. Rd4 Rbc8 34. Rh4 e5 35. Ra7+ Ke6 36. Raxh7 Kf5 37. h3 Rg8 38. Rg4 e4 39. Rf7+ Ke6 40. Rf6+ Ke5 41. f4+ Kd4 42. Rxd6+ Kxc4 43. Kf2 Rcd8 44. Rxd8 Rxd8 45. Ke3 Kd5 46. Rg1 Rh8 47. Rd1+ Ke6 48. Ra1 Rxh3+ 49. Kxe4 Rb3 50. Ra6+ Kf7 51. Rf6+ Kg7 52. Ke5 Ra3 53. Rc6 Ra5+ 54. Ke4 Rf5 55. Rc7+ Kf8 56. Rd7 Kg8 57. Rd8+ Kf7 58. Rd5 Ke6 59. Rxf5 gxf5+ 60. Kd4 Kd6 61. Kc4 Kd7 62. Kd5 Ke7 63. Ke5 Kf7 64. Kxf5 Kg7 65. Ke6 Kf8 66. f5 Ke8 67. f6 Kf8 68. f7 Kg7 69. Ke7 Kg6 70. f8Q Kxg5 71. Ke6 Kg4 72. Ke5 Kg5 73. Qg7+ Kh4 74. Kf4 Kh3 75. Qg3# 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.21"]
[Round "3"]
[White "Sieber, Bert"]
[Black "Haenselmann, Hendrik"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "1453"]
[BlackElo "1692"]
[PlyCount "143"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 6. g3 0-0 7. Bg2 d6 8. 0-0 Nbd7 9. Re1 c5 10. d5 e5 11. e4 a6 12. b4 Re8 13. Nd2 Rc8 14. Qb3 Qc7 15. b5 a5 16. Nf1 Bf8 17. Bb2 g6 18. Ne2 Bg7 19. Rad1 Ra8 20. a4 Rac8 21. Nc1 Bh6 22. Bc3 Rcd8 23. Qb2 Bg7 24. Nd3 g5 25. Ne3 Bc8 26. h3 Nh5 27. Kh2 Bf8 28. Qe2 Ndf6 29. Bf3 Ng7 30. g4 h6 31. Kg3 Qd7 32. Rh1 Be7 33. Nf5 Nxf5+ 34. gxf5 Nh7 35. Rdg1 Kf8 36. Kg2 Bf6 37. Kf1 Ke7 38. Bd2 Rg8 39. Bg4 Rde8 40. Ke1 Kd8 41. Kd1 Kc7 42. Kc2 Kb8 43. Rg2 Rd8 44. Rhg1 Rge8 45. Bh5 Bb7 46. Ne1 Bh8 47. h4 gxh4 48. Bxh6 Nf6 49. Bf3 Nh7 50. Rh2 Bf6 51. Ng2 Rg8 52. Rgh1 Ng5 53. Nxh4 Nxf3 54. Nxf3 Be7 55. Be3 Rg7 56. Rh7 Rdg8 57. Qd2 f6 58. Qc1 Ka7 59. R7h3 Kb8 60. Nh4 Ka7 61. Ng6 Rc8 62. Rh8 Rgg8 63. R8h7 Rce8 64. Rf7 Rgf8 65. Nxf8 Rxf8 66. Rg7 Re8 67. Rhh7 Ka8 68. Rf7 Bc8 69. Rxf6 Qd8 70. Rff7 Rf8 71. f6 Bg4 72. Bg5 1-0

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.20"]
[Round "2"]
[White "Lehmann, Nils"]
[Black "Sieber, Bert"]
[Result "0-1"]
[ECO "B35"]
[WhiteElo "1654"]
[BlackElo "1453"]
[PlyCount "120"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Qb6 9. Bb3 Ng4 10. Na4 Qb4+ 11. c3 Nxe3 12. Qd3 Nxg2+ 13. Kf2 Nf4 14. Qc4 Qxc4 15. Bxc4 Nxd4 16. cxd4 Bxd4+ 17. Kg3 Be5 18. Kf2 d6 19. Ke3 Bd7 20. Nc3 Rfc8 21. Nd5 Nxd5+ 22. Bxd5 Bc6 23. Bb3 Bxb2 24. Rab1 Bg7 25. h4 h5 26. f4 e6 27. Rhg1 Bd7 28. Rg2 Rc3+ 29. Kf2 Bd4+ 30. Ke2 Re3+ 31. Kd2 Rxe4 32. f5 exf5 33. Rxg6+ Kf8 34. Rxd6 Be3+ 35. Kd1 Ke7 36. Rd5 Be6 37. Rb5 Rd8+ 38. Kc2 b6 39. Bxe6 fxe6 40. Rh1 Rdd4 41. Rh2 Rb4 42. Rxb4 Rxb4 43. Rg2 Rg4 44. Re2 f4 45. Kd3 Rxh4 46. Rc2 Bc5 47. Ke4 Kf6 48. Kf3 Kf5 49. a4 Rh3+ 50. Kg2 Rg3+ 51. Kh2 h4 52. a5 h3 53. Rc4 Bg1+ 54. Kh1 f3 55. a6 Bc5 56. Kh2 Bd6 57. Rd4 Be5 58. Kh1 f2 59. Rd1 Rg2 60. Rd3 Rh2# 0-1

[Event "GER-ch U12"]
[Site "Willingen"]
[Date "2018.05.20"]
[Round "1"]
[White "Sieber, Bert"]
[Black "Roessel, Gino"]
[Result "0-1"]
[ECO "D48"]
[WhiteElo "1453"]
[BlackElo "1705"]
[PlyCount "76"]
[EventDate "2018.05.19"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 184 Extra"]
[Source "ChessBase"]
[SourceDate "2018.06.28"]
[SourceVersion "1"]
[SourceVersionDate "2018.06.28"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Be2 dxc4 7. Bxc4 b5 8. Bd3 a6 9. Bd2 c5 10. 0-0 Bb7 11. Be2 Rc8 12. Rc1 Qb6 13. dxc5 Bxc5 14. a4 b4 15. Na2 Bc6 16. b3 0-0 17. Bc4 Rfd8 18. Qe2 a5 19. Rcd1 Bd5 20. Bxd5 Nxd5 21. e4 Ne7 22. Bf4 Ng6 23. Bg3 Nf6 24. Nd2 Rd4 25. Nc4 Qa6 26. Rxd4 Bxd4 27. Rd1 e5 28. Nc1 Qa8 29. Re1 Bc3 30. Rd1 Bd4 31. Re1 Rd8 32. Qc2 Bc3 33. Re2 Nxe4 34. Nd3 Nxg3 35. hxg3 Qd5 36. Ndb2 Ne7 37. Kh2 Nc6 38. Nb6 Qc5 0-1

