[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.18"]
[Round "11"]
[White "Duman, Deniz"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "B02"]
[BlackElo "864"]
[PlyCount "46"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. d3 Nf6 3. g3 Bc5 4. Bg5 d6 5. Bg2 h6 6. Bh4 Nc6 7. Nf3 Bg4 8. 0-0 Nd4 9. h3 Bh5 10. c3 Nxf3+ 11. Bxf3 g5 12. Bxh5 gxh4 13. gxh4 Qd7 14. Bg4 Nxg4 15. hxg4 0-0-0 16. b4 Bb6 17. a4 a5 18. bxa5 Bxa5 19. Ra2 Rdg8 20. f3 h5 21. Rb2 hxg4 22. Qb3 gxf3+ 23. Kh2 Rxh4# 0-1

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.18"]
[Round "10"]
[White "Weissbrot, Boris"]
[Black "Streicher, Valeria"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "864"]
[PlyCount "35"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. f4 Nf6 3. fxe5 Nxe4 4. Nc3 Nxc3 5. dxc3 Bc5 6. Nf3 0-0 7. Bd3 Qe7 8. b4 Bxb4 9. cxb4 Qxb4+ 10. Bd2 f6 11. Bxb4 Re8 12. Bc4+ Kh8 13. Qe2 d6 14. Bc3 Bg4 15. Qe4 Bxf3 16. gxf3 dxe5 17. Bd3 Nc6 18. Qxh7# 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.17"]
[Round "7"]
[White "Kiesel, Lucas"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "920"]
[BlackElo "864"]
[PlyCount "141"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nc6 2. g3 e5 3. d3 Nf6 4. Bg2 Bc5 5. 0-0 0-0 6. Nbd2 d5 7. e4 Be6 8. c3 d4 9. Qc2 dxc3 10. Qxc3 Bd4 11. Nxd4 exd4 12. Qc2 Qd7 13. a3 Bh3 14. f4 Bxg2 15. Kxg2 Qg4 16. b4 b5 17. Bb2 Ne7 18. Bxd4 Ng6 19. Bxf6 gxf6 20. h3 Nh4+ 21. Kf2 Qxh3 22. gxh4 Qxh4+ 23. Ke3 Rfe8 24. Nf3 Qh6 25. Rh1 Qf8 26. Rhg1+ Kh8 27. Qc3 Re6 28. f5 Rd6 29. Ng5 Qh6 30. Kf3 Qh5+ 31. Rg4 Rg8 32. Rag1 h6 33. Qxc7 Rxd3+ 34. Ke2 Rxg5 35. Kxd3 Rxg4 36. Rxg4 Qxg4 37. Qxf7 h5 38. Qxf6+ Kh7 39. Qe7+ Kh8 40. f6 Qf4 41. f7 Kg7 42. Qxa7 h4 43. Qd4+ Kf8 44. Qc5+ Kxf7 45. Qxb5 h3 46. Qf5+ Ke7 47. Qxh3 Qd6+ 48. Kc4 Qc6+ 49. Kb3 Qxe4 50. Qc8 Qd3+ 51. Ka4 Qd1+ 52. Ka5 Qd5+ 53. Qc5+ Qxc5+ 54. bxc5 Kd7 55. Kb6 Kc8 56. c6 Kb8 57. c7+ Kc8 58. a4 Kd7 59. Kb7 Kd6 60. c8Q Ke5 61. Qd7 Ke4 62. Qd6 Ke3 63. Qd5 Kf2 64. Qd3 Kg2 65. Qe3 Kf1 66. Qd2 Kg1 67. a5 Kf1 68. a6 Kg1 69. a7 Kh1 70. a8Q Kg1 71. Qa1# 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.17"]
[Round "9"]
[White "Scholz, Tom"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "1216"]
[BlackElo "864"]
[PlyCount "105"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d5 4. Nc3 Nf6 5. d3 Bd7 6. Bg5 a6 7. Bxc6 Bxc6 8. Qd2 Be7 9. 0-0-0 0-0 10. exd5 Bxd5 11. Nxd5 Qxd5 12. c4 Qd6 13. Rhe1 h6 14. Bh4 Nd7 15. Bxe7 Qxe7 16. Qc3 f6 17. d4 e4 18. Nd2 f5 19. f3 Nb8 20. fxe4 fxe4 21. Rxe4 Qg5 22. Qg3 Qxg3 23. hxg3 Nc6 24. Nf3 Nb4 25. Kb1 Rad8 26. Rf4 Rfe8 27. a3 Nc6 28. g4 g5 29. Rf6 Kh7 30. Rf7+ Kg8 31. Rxc7 Rb8 32. d5 Ne7 33. d6 Ng6 34. c5 Nf4 35. Rd2 Ne6 36. Re7 Rxe7 37. dxe7 Re8 38. Nd4 Nxc5 39. Nf5 Kh7 40. Rd8 Rxe7 41. Nxe7 b5 42. Rd5 Ne4 43. Kc2 Nf6 44. Rf5 Nxg4 45. Rf7+ Kh8 46. Kd2 h5 47. Kc3 Ne5 48. Rf6 g4 49. Kd4 Nd7 50. Rh6+ Kg7 51. Rxh5 g3 52. Rh3 Kf6 53. Nd5+ 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.17"]
[Round "8"]
[White "Weissbrot, Boris"]
[Black "Phunhon Lopez, Daniel Alejandro"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "864"]
[BlackElo "1199"]
[PlyCount "88"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nf6 3. Nf3 d6 4. Bc4 g6 5. Ng5 e6 6. d4 cxd4 7. Qxd4 Nc6 8. Qd3 Bg7 9. Bf4 e5 10. Nxf7 Qe7 11. Nxh8 exf4 12. Nd5 Nxd5 13. Qxd5 Bxh8 14. Qg8+ Kd7 15. 0-0 Bxb2 16. Rad1 Kc7 17. Qd5 Be5 18. Rb1 Bd7 19. Qb5 Rb8 20. Bd5 Qh4 21. Bxc6 Bxc6 22. Qa5+ Kc8 23. f3 Bd4+ 24. Kh1 Qf6 25. Rfd1 Qe5 26. Qb4 Bc5 27. Qc4 Qe7 28. Rd3 Kc7 29. a4 a5 30. Qc3 Ra8 31. Qd2 Qe5 32. c3 Bxa4 33. Qb2 Bc6 34. h3 a4 35. Qa2 Rf8 36. c4 Bd4 37. Rbd1 Bc5 38. Qc2 Ra8 39. Qa2 a3 40. Rd5 Bxd5 41. cxd5 Qb2 42. Ra1 Qxa2 43. Rxa2 Ra4 44. Ra1 a2 0-1

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.16"]
[Round "5"]
[White "Kuzyak, Vadym"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "1142"]
[BlackElo "864"]
[PlyCount "103"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. f4 f6 3. fxe5 fxe5 4. Qh5+ g6 5. Qxe5+ Be7 6. Qxh8 Kf8 7. Qxh7 Qe8 8. Bc4 Bc5 9. Qxg8+ Ke7 10. Qg7+ Kd8 11. Nh3 Qxe4+ 12. Be2 c6 13. Qf6+ Be7 14. Qh8+ Kc7 15. d3 Bh4+ 16. Nf2 Qe7 17. Bf4+ d6 18. Qd4 g5 19. Bxd6+ Qxd6 20. Qxd6+ Kxd6 21. g3 Nd7 22. gxh4 gxh4 23. Nc3 Ne5 24. Kd2 h3 25. Nfe4+ Kc7 26. Raf1 Bd7 27. Rf3 Nxf3+ 28. Bxf3 Rf8 29. Rf1 a5 30. Be2 Rg8 31. Rh1 b5 32. Nf6 Rg7 33. Nxd7 Kxd7 34. Ke3 b4 35. Ne4 Kc7 36. Nf2 Rg5 37. Bg4 Rc5 38. c4 bxc3 39. bxc3 Rxc3 40. Nxh3 Ra3 41. Be6 Kd6 42. Bb3 a4 43. Bc4 c5 44. Nf4 Rc3 45. Kd2 Ra3 46. Kc2 Kc6 47. Kb2 Rxd3 48. Nxd3 Kb6 49. Re1 Ka5 50. Re6 a3+ 51. Kc3 Ka4 52. Ra6# 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.16"]
[Round "4"]
[White "Wehrhahn, Duncan"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "E51"]
[WhiteElo "731"]
[BlackElo "864"]
[PlyCount "54"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bd2 c5 6. cxd5 exd5 7. dxc5 Bxc5 8. e3 0-0 9. Be2 Nc6 10. 0-0 d4 11. exd4 Nxd4 12. Nxd4 Bxd4 13. Be3 Bxe3 14. fxe3 Qb6 15. Qd2 Rd8 16. Qc1 Re8 17. Rf3 Bg4 18. Rg3 h5 19. Bxg4 Nxg4 20. Nd5 Qd8 21. Nc7 Rc8 22. h3 Rxc7 23. Qd1 Rd7 24. Qf1 Nxe3 25. Qf2 Nd1 26. Qxa7 Qc7 27. Rg5 Re1# 0-1

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.16"]
[Round "6"]
[White "Weissbrot, Boris"]
[Black "Schewtschuk, Georg"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "864"]
[PlyCount "41"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Be3 0-0 7. Bd3 d6 8. Nxc6 bxc6 9. Bxc5 dxc5 10. 0-0 Ne8 11. h3 Qf6 12. Qh5 g6 13. e5 Qxf2+ 14. Rxf2 gxh5 15. Ne4 Rb8 16. b3 c4 17. bxc4 Ng7 18. Nf6+ Kh8 19. Nxh7 Re8 20. Rxf7 Rxe5 21. Rf8# 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.15"]
[Round "2"]
[White "Schewe, Enora"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "701"]
[BlackElo "864"]
[PlyCount "82"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bc4 Bc5 5. 0-0 Ng4 6. Qe2 Nd4 7. Nxd4 exd4 8. Qxg4 dxc3 9. dxc3 0-0 10. Bg5 d6 11. Bxd8 Bxg4 12. Be7 Rfe8 13. Bg5 Rxe4 14. Bd5 Re5 15. Bxb7 Rb8 16. Rae1 Rxg5 17. h3 Bxh3 18. g3 Bxf1 19. Kxf1 Rf5 20. f3 h5 21. b4 Bb6 22. Be4 Re5 23. f4 Re6 24. f5 Re5 25. g4 hxg4 26. Kg2 Rbe8 27. Kg3 Rxe4 28. Rxe4 Rxe4 29. a4 a5 30. bxa5 Bxa5 31. c4 Rxc4 32. f6 gxf6 33. Kh4 d5 34. Kh5 Rxc2 35. Kxg4 d4 36. Kf3 d3 37. Ke3 d2 38. Ke2 Ra2 39. Kd1 c5 40. Ke2 c4 41. Kf1 d1R# 0-1

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.15"]
[Round "1"]
[White "Weissbrot, Boris"]
[Black "Balli, Muhammed"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "864"]
[PlyCount "55"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Ng5 Qxg5 5. d3 Qh4 6. g3 Qf6 7. 0-0 d6 8. Nc3 Nh6 9. Nd5 Qd8 10. Bxh6 gxh6 11. Qh5 Be6 12. Rae1 Nd4 13. Re3 Qd7 14. Nf6+ Ke7 15. Nxd7 Kxd7 16. Bxe6+ fxe6 17. Qf7+ Kc6 18. c3 Nc2 19. Re2 Raf8 20. Qxe6 Nd4 21. cxd4 Bxd4 22. Rc1+ Kb6 23. Qb3+ Ka5 24. Qd5+ Kb6 25. a4 a5 26. Qb5+ Ka7 27. Rxc7 Rb8 28. Qxa5# 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2011.10.15"]
[Round "3"]
[White "Weissbrot, Boris"]
[Black "Brockmeyer, Tobias"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "864"]
[BlackElo "1101"]
[PlyCount "92"]
[EventDate "2011.10.15"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 g6 4. Ng5 e6 5. Qf3 Nf6 6. d3 Bg7 7. Bf4 0-0 8. e5 Ne8 9. h4 Nxe5 10. Bxe5 Bxe5 11. c3 d5 12. Bb5 a6 13. Bxe8 Rxe8 14. h5 Qxg5 15. hxg6 Qxg6 16. Nd2 Kh8 17. Nf1 Rg8 18. Qh3 Rg7 19. 0-0-0 Qxg2 20. Qh4 Qg5+ 21. Kc2 Qxh4 22. Rxh4 Bd7 23. Re1 Bd6 24. Nd2 Rag8 25. Reh1 Be7 26. Rh6 Bb5 27. c4 Bc6 28. cxd5 Bxd5 29. R1h2 Bg5 30. R6h5 Bf4 31. R2h4 Bg5 32. Rh2 b5 33. a3 c4 34. dxc4 bxc4 35. Kc3 Rc8 36. a4 Bf6+ 37. Kc2 Rb8 38. Kd1 Rxb2 39. Rh6 Bc3 40. f4 Bxd2 41. a5 Bxf4 42. Rxb2 Bxh6 43. Rb8+ Rg8 44. Rb6 Ra8 45. Rb2 f5 46. Rh2 Bf4 0-1

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.12"]
[Round "11"]
[White "Bruns, Kai Christian"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1310"]
[BlackElo "807"]
[PlyCount "87"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. d4 d6 4. g3 b6 5. Bg2 Bb7 6. 0-0 Nf6 7. Nc3 e5 8. d5 Nd4 9. e3 Nxf3+ 10. Bxf3 Be7 11. Bg2 0-0 12. Ne2 a6 13. a4 b5 14. axb5 axb5 15. Rxa8 Qxa8 16. cxb5 Nxd5 17. Nc3 Nxc3 18. Bxb7 Qxb7 19. bxc3 Qxb5 20. e4 Qc4 21. Qc2 d5 22. exd5 Qxd5 23. c4 Qe6 24. Be3 h6 25. Rd1 Rc8 26. Rd5 f6 27. Qg6 Qf7 28. Qg4 Rb8 29. Bxc5 Rb1+ 30. Kg2 Bxc5 31. Rxc5 Qb7+ 32. Kh3 Qf7 33. Rc8+ Kh7 34. Qe4+ g6 35. Qc6 Rb7 36. Rd8 Rc7 37. Qb5 Qe6+ 38. Kg2 Qc6+ 39. Qd5 Qxd5+ 40. cxd5 Kg7 41. d6 Ra7 42. Rc8 Rd7 43. Rc7 Rxc7 44. dxc7 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.12"]
[Round "10"]
[White "Weissbrot, Boris"]
[Black "Pysmenyy, Illya"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "807"]
[BlackElo "1360"]
[PlyCount "54"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 e5 4. d3 h6 5. Be3 Nf6 6. Nc3 Nc6 7. 0-0 Bd7 8. Nd5 Nxd5 9. Bxd5 Qc7 10. Nd2 Ne7 11. Qf3 Nxd5 12. exd5 Bb5 13. c4 Ba6 14. a3 b6 15. b4 Be7 16. b5 Bc8 17. a4 a5 18. Ne4 g6 19. Nf6+ Kd8 20. h3 Bf5 21. Ne4 Bxe4 22. dxe4 Bg5 23. Bxg5+ hxg5 24. Qf6+ Kd7 25. Qxf7+ Kc8 26. Qxc7+ Kxc7 27. Kh2 Raf8 1/2-1/2

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.11"]
[Round "8"]
[White "Skobjin, Joshua"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "839"]
[BlackElo "807"]
[PlyCount "79"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. h3 0-0 6. 0-0 d6 7. d3 h6 8. Be3 Bxe3 9. fxe3 Be6 10. Bxe6 fxe6 11. d4 d5 12. exd5 exd4 13. Nxd4 Nxd4 14. Qxd4 exd5 15. Rad1 c6 16. Qb4 a5 17. Qh4 Nd7 18. Qxd8 Raxd8 19. Rxf8+ Nxf8 20. e4 d4 21. Ne2 c5 22. Kf2 Re8 23. Kf3 Ng6 24. c3 Ne5+ 25. Kf4 Ng6+ 26. Kf3 Rf8+ 27. Kg3 dxc3 28. Nxc3 h5 29. Re1 h4+ 30. Kh2 Nf4 31. e5 g5 32. e6 Re8 33. Rd1 Ng6 34. Rd7 b6 35. Rd6 Rb8 36. Nd5 b5 37. e7 Re8 38. Rxg6+ Kh8 39. Rxg5 c4 40. Rf5 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.11"]
[Round "9"]
[White "Weissbrot, Boris"]
[Black "Thormann, Georg"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "807"]
[BlackElo "807"]
[PlyCount "53"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 c5 4. d4 Qb6 5. exd5 exd5 6. dxc5 Bxc5 7. Bb5+ Nc6 8. Qe2+ Nge7 9. 0-0 0-0 10. Bxc6 Nxc6 11. Nxd5 Qb5 12. Qxb5 Rd8 13. Qxc5 Be6 14. Ne7+ Nxe7 15. Qxe7 Re8 16. Qxb7 Bf5 17. c3 Reb8 18. Qd5 Be6 19. Qd4 Rd8 20. Qh4 Rf8 21. Ng5 h6 22. Ne4 g5 23. Nf6+ Kg7 24. Nh5+ Kg8 25. Bxg5 hxg5 26. Qxg5+ Kh8 27. Qg7# 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.11"]
[Round "7"]
[White "Weissbrot, Boris"]
[Black "Weiss, Alexander"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "807"]
[BlackElo "756"]
[PlyCount "73"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 f6 5. d3 Nd4 6. Nxd4 Bxd4 7. Nd5 Ne7 8. Bd2 Nxd5 9. Bxd5 c6 10. Bc4 d5 11. exd5 cxd5 12. Bb5+ Bd7 13. Bxd7+ Qxd7 14. c3 Bc5 15. 0-0 d4 16. cxd4 Bxd4 17. Rb1 Rc8 18. Qh5+ g6 19. Qe2 Rc2 20. Qd1 Qa4 21. Rc1 0-0 22. Rxc2 Qxa2 23. b4 Qb3 24. Rc4 Qxd3 25. Rc7 b5 26. Bh6 Qxd1 27. Rxd1 Rd8 28. Rg7+ Kh8 29. h4 Rc8 30. Rf7 Kg8 31. Rg7+ Kh8 32. Rd7 Bb6 33. R1d6 Bc7 34. Bg7+ Kg8 35. Rxf6 Bb6 36. Bh6 Rc1+ 37. Bxc1 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.10"]
[Round "4"]
[White "Von Daake, Leonhard"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "740"]
[BlackElo "807"]
[PlyCount "80"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. Bd2 0-0 7. Nc3 Bg4 8. Be3 Bxe3 9. fxe3 Nb4 10. a3 Bxf3 11. Rxf3 Nc6 12. h3 Ne7 13. Nd5 Nexd5 14. exd5 c6 15. e4 cxd5 16. exd5 e4 17. dxe4 Nxe4 18. Re3 Qb6 19. Qd3 Rfe8 20. Rf1 Nc5 21. Qd4 Rxe3 22. Qxe3 Nd7 23. Qxb6 Nxb6 24. Ba2 Rc8 25. Re1 h6 26. c3 g5 27. Re7 Rb8 28. c4 Nc8 29. Rc7 a6 30. c5 dxc5 31. Rxc5 b6 32. Rc4 b5 33. Rc6 a5 34. d6 Na7 35. Ra6 Nc8 36. d7 Ne7 37. Rb6 Rd8 38. Rb8 Rxb8 39. b4 axb4 40. axb4 Rd8 0-1

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.10"]
[Round "5"]
[White "Weissbrot, Boris"]
[Black "Brockmeyer, Tobias"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "807"]
[BlackElo "867"]
[PlyCount "80"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. d3 h6 6. 0-0 d6 7. h3 Bd7 8. Bd2 Qe7 9. Qe2 0-0-0 10. Be3 Rhe8 11. Bxc5 dxc5 12. Nd5 Qd6 13. Nxf6 gxf6 14. Bd5 Be6 15. Bxc6 Qxc6 16. c3 f5 17. Rad1 fxe4 18. dxe4 Bxa2 19. Rxd8+ Rxd8 20. Nxe5 Qf6 21. Ng4 Qe6 22. Ra1 h5 23. Ne3 a6 24. c4 Bb3 25. Ra3 Bxc4 26. Nxc4 Rd4 27. Nd2 Qd6 28. Rg3 Rxd2 29. e5 Qd5 30. Qxh5 Rxb2 31. Rg8+ Kd7 32. Qf5+ Kc6 33. Qf6+ Kb5 34. Rg5 Qd4 35. Rf5 Re2 36. Qxf7 Rxe5 37. Rxe5 Qxe5 38. Qd7+ Kb6 39. g4 c4 40. Qd1 c3 1/2-1/2

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.10"]
[Round "6"]
[White "Zuschlag, Jannick"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1048"]
[BlackElo "807"]
[PlyCount "77"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 Bf5 5. Bg5 e6 6. e3 Bb4 7. Be2 Ne4 8. Bxd8 Kxd8 9. Qc1 Nd7 10. 0-0 Ndf6 11. Ne5 Ke8 12. a3 Bd6 13. Nxe4 dxe4 14. c5 Be7 15. Nc4 Rd8 16. Qd1 e5 17. Nxe5 Rd5 18. Ng4 Be6 19. Nxf6+ Bxf6 20. Bc4 Rg5 21. Bxe6 fxe6 22. h4 Rf5 23. Qb3 Kf7 24. Qxb7+ Kg6 25. Qxc6 Bxh4 26. Qxe4 Bg5 27. Qxe6+ Rf6 28. Qg4 h5 29. Qd7 h4 30. f4 Bh6 31. Rf3 Rhf8 32. b4 Rf5 33. Raf1 R8f7 34. Qe6+ R7f6 35. Qe4 Kh5 36. c6 Rf8 37. c7 g5 38. Rc1 Rc8 39. Qxf5 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.09"]
[Round "1"]
[White "Heise, Tobias"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "1115"]
[BlackElo "807"]
[PlyCount "77"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. c4 e6 4. Nc3 Nf6 5. Bg5 h6 6. Bh4 dxc4 7. e3 Bb4 8. Bxc4 Bxc3+ 9. bxc3 g5 10. Bg3 g4 11. Ne5 Nxe5 12. Bxe5 0-0 13. Bxf6 Qxf6 14. Qxg4+ Kh8 15. Bd3 Rg8 16. Qe4 Rg6 17. g3 h5 18. Qe5 Qxe5 19. dxe5 Rg4 20. f4 Rg8 21. Be4 f5 22. Bf3 Rd8 23. Ke2 Rb8 24. Bxh5 b5 25. Rhd1 Rxd1 26. Rxd1 b4 27. Rb1 Ba6+ 28. Kd2 bxc3+ 29. Kc1 Rxb1+ 30. Kxb1 Bd3+ 31. Kc1 Kg8 32. Be8 Kf8 33. Ba4 Bc4 34. a3 Kg7 35. Kc2 Kh6 36. Kxc3 Bf1 37. Bd7 Bh3 38. Bxe6 Kg6 39. Bd5 1-0

[Event "Hannover-ch U12"]
[Site "Lehrte"]
[Date "2010.10.09"]
[Round "2"]
[White "Weissbrot, Boris"]
[Black "Koepp, Jan"]
[Result "0-1"]
[ECO "C46"]
[WhiteElo "807"]
[PlyCount "78"]
[EventDate "2010.10.09"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. Bc4 Bg7 5. d3 Nf6 6. Bg5 0-0 7. Nd5 d6 8. 0-0 Bg4 9. h3 Be6 10. Bxf6 Bxf6 11. Nxf6+ Qxf6 12. Bxe6 Qxe6 13. Ng5 Qf6 14. Nf3 Nd4 15. c3 Nxf3+ 16. gxf3 Qh4 17. Kh2 Rae8 18. Rg1 Re6 19. Qe2 Rf6 20. Rg4 Qh5 21. Rag1 Rf4 22. Rg5 Qh6 23. d4 Re8 24. dxe5 Rxe5 25. Rxe5 dxe5 26. Rd1 Rh4 27. Rd8+ Kg7 28. Qf1 Qh5 29. Qg2 Rf4 30. Rd3 c5 31. b4 c4 32. a4 cxd3 33. Kg1 Rxf3 34. Kf1 d2 35. Ke2 Rg3+ 36. Kxd2 Rxg2 37. c4 Qf3 38. Ke1 Qxf2+ 39. Kd1 Qd2# 0-1

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.06"]
[Round "11"]
[White "Weissbrot, Boris"]
[Black "Baars, Soeren"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "71"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 0-0 6. Bg5 d6 7. Nd5 Bg4 8. 0-0 Bxf3 9. Qxf3 Nd4 10. Qh3 c6 11. Bxf6 gxf6 12. Qg4+ Kh8 13. c3 cxd5 14. cxd4 dxc4 15. dxc5 Qc8 16. cxd6 cxd3 17. d7 Qd8 18. Rfd1 Rg8 19. Qh5 Qxd7 20. Qf3 f5 21. Rxd3 Qe8 22. Qxf5 Qf8 23. Qf6+ Rg7 24. Qxe5 Re8 25. Qf6 Rxe4 26. f3 Re7 27. h4 Qe8 28. Rad1 Re6 29. Qc3 Rc6 30. Qd4 Rc2 31. h5 Qg8 32. h6 b5 33. hxg7+ Qxg7 34. Qd8+ Qg8 35. Qf6+ Qg7 36. Rd8# 1-0

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.05"]
[Round "7"]
[White "Seidenstuecker, Hannah Charlotte"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "721"]
[PlyCount "90"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nc6 3. Nc3 Nf6 4. Nb5 Bf5 5. Nxc7+ Kd7 6. Nxa8 Qxa8 7. e3 Ne4 8. Nh3 Bxh3 9. gxh3 e6 10. Bd3 Bb4+ 11. c3 Bd6 12. Bxd6 Nxd6 13. f3 Qd8 14. e4 dxe4 15. fxe4 Qh4+ 16. Kd2 e5 17. dxe5 Nxe5 18. Qe1 Qxh3 19. Qf1 Nf3+ 20. Ke2 Qg4 21. Kf2 Nd2 22. Be2 N6xe4+ 23. Ke3 Nxf1+ 24. Raxf1 Qe6 25. Ra1 Ng3+ 26. Kf2 Nxh1+ 27. Rxh1 Re8 28. Bb5+ Kd8 29. Bxe8 Qxe8 30. Re1 Qc6 31. Rd1+ Kc8 32. Re1 Qc5+ 33. Re3 f5 34. Kf3 Qd5+ 35. Kf4 h6 36. Re7 g5+ 37. Ke3 f4+ 38. Ke2 f3+ 39. Kf2 Qc5+ 40. Re3 g4 41. b4 Qc7 42. Re8+ Kd7 43. Rh8 Qxh2+ 44. Kf1 Qe2+ 45. Kg1 Qg2# 0-1

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.05"]
[Round "9"]
[White "Wehrhahn, Duncan"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "734"]
[PlyCount "50"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 5. d3 d6 6. Bg5 Bg4 7. Nd5 Nd4 8. Nxf6+ gxf6 9. Bh6 Bxf3 10. gxf3 Rg8 11. c3 Nc6 12. Bd5 Ne7 13. Bxb7 Rb8 14. Bd5 Nxd5 15. exd5 Rg2 16. Qe2 Rxf2 17. Qe4 Rbxb2 18. Qxh7 Rbe2+ 19. Kd1 Rd2+ 20. Bxd2 Rxf3 21. Qg8+ Kd7 22. Rg1 Bxg1 23. Qxg1 Rxd3 24. Qf1 Rxd5 25. c4 Rd4 0-1

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.05"]
[Round "8"]
[White "Weissbrot, Boris"]
[Black "Thormann, Georg"]
[Result "0-1"]
[ECO "C00"]
[BlackElo "735"]
[PlyCount "148"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bb5+ c6 6. Be2 Bb4 7. d3 Bg4 8. 0-0 0-0 9. Bf4 Nbd7 10. Ne5 Bxe2 11. Nxe2 Nxe5 12. Bxe5 Qe7 13. Bxf6 Qxf6 14. c3 Bd6 15. Nd4 Qh6 16. h3 Qf4 17. Nf3 Rfe8 18. g3 Qh6 19. c4 Qxh3 20. cxd5 cxd5 21. Re1 Rxe1+ 22. Qxe1 h6 23. Rc1 g5 24. g4 Qxg4+ 25. Kf1 Qxf3 26. Qd2 h5 27. Qxg5+ Kf8 28. Qh6+ Ke7 29. Qg5+ f6 30. Qg7+ Ke6 31. Re1+ Be5 32. d4 Qh1+ 33. Ke2 Qe4+ 34. Kd1 Qxd4+ 35. Ke2 Qxb2+ 36. Kf1 Rc8 37. Qg3 f5 38. Qg6+ Kd7 39. Qf7+ Kd6 40. Qg6+ Kc5 41. Qxf5 Bc3 42. Rb1 Qd2 43. Qxc8+ Kd4 44. Qh8+ Kc4 45. Qc8+ Kd4 46. Qe8 Qd3+ 47. Kg2 Qxb1 48. Qa4+ Qb4 49. Qd1+ Kc5 50. Qxh5 Qe4+ 51. f3 Qe2+ 52. Kg3 Qe5+ 53. Qxe5 Bxe5+ 54. f4 Bxf4+ 55. Kxf4 b5 56. Ke3 d4+ 57. Kd3 b4 58. Kc2 Kc4 59. Kd2 a5 60. Kc2 d3+ 61. Kd2 a4 62. Kc1 b3 63. axb3+ axb3 64. Kd1 Kc3 65. Kc1 d2+ 66. Kd1 b2 67. Ke2 b1Q 68. Ke3 Qd3+ 69. Kf4 d1R 70. Ke5 Re1+ 71. Kf4 Re8 72. Kg5 Rf8 73. Kg4 Qg6+ 74. Kh3 Rh8# 0-1

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.04"]
[Round "5"]
[White "Korb, Ruben"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "129"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. Nxe5 Nxe5 6. d4 Nxc4 7. dxc5 0-0 8. Qd4 Nxb2 9. Bxb2 d6 10. Nb5 dxc5 11. Qxd8 Rxd8 12. Nxc7 Rb8 13. 0-0 Nxe4 14. f3 Nd2 15. Rfd1 h6 16. Bc3 Rd7 17. Rxd2 Rxc7 18. Be5 Re7 19. Bxb8 Bf5 20. g4 Be6 21. Re2 Re8 22. Bd6 Rd8 23. Bxc5 b6 24. Bf2 Bc4 25. Re4 Bb5 26. Rae1 Bc6 27. Rc4 Bb5 28. Bh4 g5 29. Rce4 gxh4 30. c4 Bc6 31. Rf4 b5 32. cxb5 Bxb5 33. Re7 Rd1+ 34. Kf2 Rf1+ 35. Kg2 a5 36. Rb7 Ba6 37. Rb8+ Kg7 38. Ra8 Bd3 39. Rxa5 Rc1 40. Rd4 Rc2+ 41. Kh3 Bf1+ 42. Kxh4 Rxh2+ 43. Kg3 Rg2+ 44. Kf4 Rh2 45. Rd1 Be2 46. Ra1 h5 47. gxh5 Rh4+ 48. Kg5 Rh3 49. Rf5 Rg3+ 50. Kh4 Rg2 51. Rg5+ Rxg5 52. Kxg5 f6+ 53. Kf4 Bd3 54. a4 Kh6 55. a5 Kxh5 56. a6 Bxa6 57. Rxa6 f5 58. Kxf5 Kh4 59. Kf4 Kh3 60. Rg6 Kh2 61. Rg4 Kh3 62. Ke3 Kh2 63. Kf2 Kh3 64. Ra4 Kh2 65. Rh4# 1-0

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.04"]
[Round "4"]
[White "Weissbrot, Boris"]
[Black "Kiesel, Lucas"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "65"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 d6 5. d3 Bg4 6. 0-0 Nf6 7. Bg5 h6 8. Bh4 0-0 9. Nd5 b6 10. Qd2 Bxf3 11. gxf3 g5 12. Bg3 Nxd5 13. Bxd5 Qd7 14. Bxc6 Qxc6 15. b4 Bd4 16. Rae1 Bc3 17. Qe3 Bxe1 18. Rxe1 Qxc2 19. Re2 Qa4 20. d4 exd4 21. Qxd4 Qa6 22. Re3 Qxa2 23. e5 dxe5 24. Bxe5 Rad8 25. Qc3 Rd2 26. Bh8 f6 27. Bxf6 Kf7 28. Re7+ Kg6 29. Rg7+ Kh5 30. Rxg5+ hxg5 31. Be7 Rf7 32. Qh8+ Rh7 33. Qxh7# 1-0

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.04"]
[Round "6"]
[White "Weissbrot, Boris"]
[Black "Schewe, Enora"]
[Result "1-0"]
[ECO "C40"]
[PlyCount "77"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Bc5 3. Nc3 Qf6 4. Bc4 a6 5. d3 Nc6 6. Bg5 Qd6 7. Nd5 Na5 8. 0-0 Nxc4 9. dxc4 Nf6 10. Bxf6 gxf6 11. b4 Bxb4 12. Nxb4 Qxd1 13. Rfxd1 d6 14. Nd5 f5 15. Nxc7+ Kd8 16. Nxa8 fxe4 17. Rxd6+ Ke8 18. Nc7+ Kf8 19. Nxe5 f6 20. Rxf6+ Kg8 21. Nf7 Kg7 22. Nxh8 Kxh8 23. Rf8+ Kg7 24. Rxc8 Kf7 25. Re1 Ke7 26. Rxe4+ Kd7 27. Ree8 b6 28. Nxa6 h5 29. Nb8+ Kd6 30. c5+ bxc5 31. Rcd8+ Kc7 32. Re7+ Kb6 33. Nd7+ Kc6 34. Ne5+ Kb5 35. Rb8+ Ka6 36. Re6+ Ka7 37. Nc6+ Ka6 38. Re3 c4 39. Ra3# 1-0

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.03"]
[Round "1"]
[White "Baeuerlein, Michael"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "30"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. c3 Bc5 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Bxc3 9. d5 Ne5 10. Nxe5 Bxe5 11. Re1 Qh4 12. Bd3 Qxh2+ 13. Kf1 Qh1+ 14. Ke2 Qxg2 15. Rg1 Qxf2# 0-1

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.03"]
[Round "3"]
[White "Brockmeyer, Tobias"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "814"]
[PlyCount "79"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e5 2. e4 Nc6 3. Nc3 Nf6 4. Bd3 Bc5 5. Nf3 Nd4 6. Nxd4 Bxd4 7. 0-0 Bxc3 8. bxc3 0-0 9. c5 d6 10. cxd6 cxd6 11. Bc4 Nxe4 12. Qc2 Bf5 13. d3 Nc5 14. Be3 d5 15. Bxc5 dxc4 16. Bxf8 Qxf8 17. Qe2 Bxd3 18. Qxe5 Bxf1 19. Kxf1 Re8 20. Qb5 Rd8 21. Qxc4 Rc8 22. Qb4 Qd8 23. g3 a5 24. Qxb7 Rxc3 25. h4 Qd3+ 26. Kg1 h6 27. Qb8+ Kh7 28. Qe5 f6 29. Qxa5 Rc2 30. Re1 Re2 31. a4 Rxe1+ 32. Qxe1 Qc4 33. Qd1 g5 34. h5 Qc7 35. Qd3+ Kg7 36. Qg6+ Kf8 37. Qxf6+ Ke8 38. Qxh6 Qc1+ 39. Kh2 g4 40. Qxc1 1-0

[Event "Hannover-ch U10"]
[Site "Stadthagen"]
[Date "2009.10.03"]
[Round "2"]
[White "Weissbrot, Boris"]
[Black "Brockmeyer, Katharina"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "21"]
[EventDate "2009.10.03"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Bc5 5. d3 d6 6. Bg5 Bg4 7. Nd5 0-0 8. 0-0 Bxf2+ 9. Rxf2 Nxe4 10. dxe4 Qe8 11. Nxc7 1-0

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.10"]
[Round "11"]
[White "Brockmeyer, Tobias"]
[Black "Weissbrot, Boris"]
[Result "1/2-1/2"]
[ECO "C50"]
[BlackElo "760"]
[PlyCount "109"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Ng5 0-0 6. Qf3 Nd4 7. Qh3 d6 8. Qh4 Nxc2+ 9. Kd1 Nxa1 10. Nc3 h6 11. Nf3 Bg4 12. h3 Bxf3+ 13. gxf3 Bb4 14. Rg1 Bxc3 15. bxc3 Rb8 16. Qg3 Nh5 17. Qg4 g6 18. Bxh6 Re8 19. Bg5 Nf6 20. Bxf6 Qxf6 21. Qxg6+ Qxg6 22. Rxg6+ Kf8 23. Rf6 Re7 24. f4 b5 25. Bd5 b4 26. fxe5 dxe5 27. Kd2 bxc3+ 28. Kxc3 Rc8 29. h4 c6 30. Bxc6 Re6 31. Rf5 Rcxc6+ 32. Kb2 Re7 33. Kxa1 Rb7 34. a3 Rc1+ 35. Ka2 Ke7 36. h5 Kd6 37. h6 Kc5 38. Rxe5+ Kd4 39. Ra5 Kxd3 40. Ra4 Kc2 41. Rb4 Rxb4 42. axb4 Rb1 43. h7 Rh1 44. f4 Rxh7 45. e5 Rh8 46. f5 f6 47. e6 Rb8 48. e7 Ra8 49. b5 a6 50. b6 Re8 51. b7 a5 52. Ka3 Kc3 53. Ka4 Rxe7 54. b8Q Re4+ 55. Kxa5 1/2-1/2

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.09"]
[Round "9"]
[White "Maurer, Dominik"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "D00"]
[BlackElo "760"]
[PlyCount "112"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c3 Nc6 3. Bf4 Nf6 4. Nd2 Bf5 5. Nb1 e6 6. g3 Bd6 7. Bxd6 Qxd6 8. Qd2 Ne4 9. Qe3 0-0-0 10. Na3 e5 11. dxe5 Nxe5 12. Qd4 Rhe8 13. Qxa7 Nc6 14. Qa8+ Kd7 15. Qxb7 Nc5 16. Qb5 Rb8 17. Qb4 Nxb4 18. cxb4 Rxb4 19. Bh3 Bxh3 20. Nxh3 Qe6 21. Nf4 Qe4 22. Nxd5 Qxd5 23. Rd1 Qxd1+ 24. Kxd1 Rd4+ 25. Kc1 Re6 26. Rd1 Rxd1+ 27. Kxd1 f5 28. Nc4 g5 29. h4 Kc6 30. hxg5 Kd5 31. b3 Ne4 32. Kc2 Nxf2 33. a4 Rxe2+ 34. Kc3 Kc5 35. b4+ Kd5 36. a5 Nd1+ 37. Kd3 Re3+ 38. Kd2 Kxc4 39. Kxd1 Rxg3 40. a6 Ra3 41. b5 Ra2 42. Kc1 Kc3 43. Kd1 f4 44. b6 cxb6 45. Ke1 Rxa6 46. Kf2 b5 47. Kf3 b4 48. Kxf4 b3 49. Kf5 b2 50. g6 hxg6+ 51. Kg5 b1Q 52. Kh6 g5+ 53. Kxg5 Ra8 54. Kg4 Qf1 55. Kh5 Rg8 56. Kh6 Qh1# 0-1

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.09"]
[Round "10"]
[White "Weissbrot, Boris"]
[Black "Meyer, Tamino"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "760"]
[PlyCount "38"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. Nc3 0-0 6. Bg5 h6 7. Bxf6 Qxf6 8. Nd5 Qd8 9. Qd2 d6 10. 0-0-0 Be6 11. Rhe1 Nd4 12. Nxd4 Bxd4 13. c3 Bc5 14. d4 exd4 15. cxd4 Bb6 16. Nxb6 axb6 17. Bxe6 fxe6 18. e5 Rxa2 19. Kc2 Qd7 1/2-1/2

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.08"]
[Round "8"]
[White "Blanke, Jannes"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "788"]
[BlackElo "760"]
[PlyCount "45"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 d6 6. Be3 Bxe3 7. fxe3 Be6 8. Qd2 Bxc4 9. dxc4 0-0 10. 0-0-0 Rb8 11. Nd5 Nxd5 12. exd5 e4 13. Nd4 Nxd4 14. Qxd4 Re8 15. h4 b5 16. h5 h6 17. g4 g5 18. hxg6 f6 19. Rxh6 Rf8 20. g5 bxc4 21. c3 c5 22. dxc6 d5 23. Qxa7 1-0

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.08"]
[Round "7"]
[White "Weissbrot, Boris"]
[Black "Kabashi, Marvin"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "760"]
[BlackElo "948"]
[PlyCount "78"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nc6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bb5 dxe4 7. Bxc6+ bxc6 8. Nxe5 Bc5 9. Nxc6 Qf6 10. 0-0 Qxc6 11. d3 exd3 12. Re1+ Be7 13. Qxd3 Bb7 14. f3 Qd7 15. Qb3 0-0-0 16. a4 Bc5+ 17. Be3 Bxe3+ 18. Rxe3 Rhe8 19. Rc3 Qd4+ 20. Kf1 Ba6+ 21. Rd3 Bxd3+ 22. cxd3 Qxd3+ 23. Qxd3 Rxd3 24. b4 Red8 25. b5 Rd1+ 26. Rxd1 Rxd1+ 27. Ke2 Ra1 28. a5 Rxa5 29. g4 Rxb5 30. h4 a5 31. h5 a4 32. g5 a3 33. f4 a2 34. g6 a1Q 35. gxh7 Rxh5 36. h8Q+ Rxh8 37. f5 Rh3 38. f6 Qa2+ 39. Kf1 Rh1# 0-1

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.07"]
[Round "6"]
[White "Sovetchenko, Vitaly"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "756"]
[BlackElo "760"]
[PlyCount "101"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Nf6 6. Be3 b6 7. Nf3 d6 8. 0-0 Ng4 9. Bd2 Bxc3 10. Bxc3 0-0 11. h3 Nge5 12. Nxe5 dxe5 13. Bd2 f5 14. Bh6 Rf6 15. Bg5 Rf7 16. exf5 Rxf5 17. Bxc6 Rxg5 18. Bxa8 Bxh3 19. Qf3 Bg4 20. Bd5+ Kh8 21. Qf7 Rf5 22. Qg8+ Qxg8 23. Bxg8 Kxg8 24. a3 Bf3 25. g4 Bxg4 26. Kg2 h5 27. f3 Rf4 28. fxg4 Rxg4+ 29. Kh3 Kh7 30. Rf7+ Kh6 31. Rxe7 Kg5 32. Rxe5+ Kf4 33. Re4+ Kf5 34. Rf1+ Rf4 35. Rexf4+ Ke5 36. Rf6 g5 37. R1f5+ Kd4 38. Rxg5 c4 39. Rf4+ Ke3 40. Rxc4 b5 41. Rg3+ Kd2 42. Rg2+ Ke3 43. Re4+ Kf3 44. Rg3+ Kf2 45. c4 bxc4 46. dxc4 a5 47. c5 a4 48. Rc4 h4 49. Rc2+ Kf1 50. Rgg2 Ke1 51. Rg1# 1-0

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.06"]
[Round "4"]
[White "Mildner, Ramon"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "B20"]
[BlackElo "760"]
[PlyCount "101"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 Nc6 3. d3 g6 4. Be3 b6 5. Bd5 Nb4 6. Bxa8 Ba6 7. Bd5 Nf6 8. Bb3 h5 9. a3 Ng4 10. Bf4 Nc6 11. Nf3 e6 12. Ng5 Bh6 13. h3 Bxg5 14. Bxg5 Qxg5 15. hxg4 0-0 16. gxh5 Qxg2 17. Rf1 Nd4 18. hxg6 Nf3+ 19. Ke2 fxg6 20. Nd2 Ng1+ 21. Ke1 Rxf2 22. Rxf2 Qh1 23. Rf1 Qh4+ 24. Rf2 g5 25. Nf3 Qh3 26. Nxg1 Qe3+ 27. Ne2 g4 28. Rg2 Qf3 29. Rg3 Qh1+ 30. Ng1 Qh5 31. Qxg4+ Qxg4 32. Rxg4+ Kf8 33. c4 e5 34. Bd1 b5 35. cxb5 Bxb5 36. Bc2 c4 37. dxc4 Bxc4 38. Kd2 d5 39. exd5 Bxd5 40. Rg5 a5 41. Rxe5 a4 42. Rxd5 Ke7 43. Ra5 Kf6 44. Nf3 Ke6 45. Ke3 Kd6 46. Kd4 Kc6 47. Bxa4+ Kb7 48. Rc1 Kb6 49. Rh5 Kb7 50. Rc6 Kb8 51. Rh7 1-0

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.06"]
[Round "5"]
[White "Weissbrot, Boris"]
[Black "Schicksnus, Daniel Leon"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "760"]
[PlyCount "53"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 d6 5. d3 Bg4 6. Bg5 f6 7. Bh4 Nge7 8. 0-0 Qd7 9. h3 Bxf3 10. Qxf3 0-0-0 11. Nd5 Nxd5 12. Bxd5 Nd4 13. Qe3 Qb5 14. c3 Nc2 15. Be6+ Kb8 16. Qe2 Nxa1 17. Rxa1 Rde8 18. c4 Qa5 19. Bd5 g5 20. Bg3 Bd4 21. Qc2 Qb4 22. a3 Qxb2 23. Qxb2 Bxb2 24. Rb1 Bxa3 25. Rxb7+ Kc8 26. Rxa7 Bc5 27. Ra6 1-0

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.05"]
[Round "2"]
[White "Koenig, Niclas"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "A84"]
[BlackElo "760"]
[PlyCount "40"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. c4 b6 4. d5 Bb7 5. Nd4 c5 6. Nxf5 g6 7. Ne3 e6 8. Nc3 exd5 9. Nexd5 Nxd5 10. Nxd5 Bxd5 11. Qxd5 Nc6 12. Bg5 Be7 13. Be3 Nb4 14. Qf3 Nc2+ 15. Kd2 Nxa1 16. g4 Rf8 17. Qe4 b5 18. cxb5 Qa5+ 19. b4 Qxa2+ 20. Kd3 Qc2# 0-1

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.05"]
[Round "3"]
[White "Weissbrot, Boris"]
[Black "Bergann, Klaus"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "760"]
[PlyCount "69"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 f6 4. Nc3 Nd4 5. Nxd4 exd4 6. Qh5+ g6 7. Qg4 d5 8. Qf4 dxc4 9. Nd5 Bd6 10. Qf3 c6 11. Nb4 Bxb4 12. a3 Ba5 13. b4 Bb6 14. d3 cxd3 15. Qxd3 c5 16. bxc5 Bxc5 17. Qb5+ Qd7 18. Qxc5 b6 19. Qb4 Rb8 20. 0-0 a5 21. Qc4 Ra8 22. Rd1 Ba6 23. Qb3 f5 24. exf5 gxf5 25. Re1+ Ne7 26. Bg5 Kf8 27. Bh6+ Ke8 28. Bg5 Kd8 29. Qxb6+ Kc8 30. Qc5+ Nc6 31. Bf6 Re8 32. Rxe8+ Qxe8 33. Qxf5+ Kb8 34. Rb1+ Ka7 35. Qc5# 1-0

[Event "Niedersachsen-ch U10"]
[Site "Rotenburg"]
[Date "2009.04.04"]
[Round "1"]
[White "Weissbrot, Boris"]
[Black "Boehning, Kilian"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "760"]
[BlackElo "1169"]
[PlyCount "86"]
[EventDate "2009.04.04"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bc4 Nf6 5. d3 Ng4 6. 0-0 0-0 7. Nd5 d6 8. Bg5 Qd7 9. h3 Nxf2 10. Rxf2 Bxf2+ 11. Kxf2 a6 12. d4 b5 13. Bb3 Re8 14. Bh6 Qd8 15. Bg5 Qd7 16. dxe5 Nxe5 17. Nxe5 Rxe5 18. Bf6 Rxe4 19. Qd3 Qf5+ 20. Kg1 gxf6 21. Qg3+ Kf8 22. Rf1 Qe5 23. Qxe5 fxe5 24. Nf6 Rf4 25. Nxh7+ Kg7 26. Ng5 Rxf1+ 27. Kxf1 f6 28. Ne4 Bf5 29. Ng3 Bg6 30. h4 c5 31. c3 c4 32. Bd1 a5 33. h5 Bh7 34. Bg4 b4 35. cxb4 axb4 36. Kf2 Rxa2 37. Kf3 Rxb2 38. Ke3 Rb3+ 39. Kf2 Rxg3 40. Kxg3 b3 41. Kh4 b2 42. g3 b1Q 43. h6+ Kg6 0-1

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.14"]
[Round "13"]
[White "Weissbrot, Boris"]
[Black "Bruncke, Leon"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "149"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Bc5 3. Bc4 Nf6 4. Ng5 0-0 5. Bxf7+ Rxf7 6. Nxf7 Kxf7 7. 0-0 Nxe4 8. Qf3+ Qf6 9. Qxf6+ Nxf6 10. Nc3 Bd4 11. Nb5 c6 12. Nc7 b6 13. Nxa8 Bb7 14. Nc7 Nd5 15. Nxd5 cxd5 16. c3 Bc5 17. Re1 Bd6 18. d4 exd4 19. cxd4 Bb4 20. Re5 Bd6 21. Rh5 Kg6 22. Rh3 Nc6 23. Rh4 Be7 24. Rg4+ Kf5 25. Rf4+ Ke6 26. Bd2 Bd6 27. Re1+ Be5 28. dxe5 Nxe5 29. Bc3 d6 30. Bxe5 dxe5 31. Rf8 g6 32. Re8+ Kd6 33. R8xe5 Bc6 34. Re6+ Kc5 35. a3 Bd7 36. b4+ Kc4 37. Rc1+ Kd4 38. Rd1+ Kc4 39. Re7 Bg4 40. Rde1 b5 41. Rc7+ Kb3 42. Re3+ Kb2 43. f3 Bf5 44. Rxa7 d4 45. Re2+ Bc2 46. Rc7 d3 47. Rd2 g5 48. g3 h6 49. f4 gxf4 50. gxf4 Kc1 51. Rcxc2+ dxc2 52. Rxc2+ Kxc2 53. f5 Kb3 54. f6 Kxa3 55. f7 Kxb4 56. f8Q+ Ka4 57. Qxh6 b4 58. Qb6 b3 59. h4 Ka3 60. h5 b2 61. Qxb2+ Kxb2 62. h6 Kc2 63. h7 Kd3 64. h8Q Kc4 65. Qd8 Kc3 66. Kf2 Kc2 67. Ke2 Kb3 68. Qc7 Kb4 69. Kd3 Kb5 70. Kd4 Kb4 71. Qc4+ Ka5 72. Qb3 Ka6 73. Kc5 Ka7 74. Kc6 Ka6 75. Qb6# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.14"]
[Round "14"]
[White "Weissbrot, Boris"]
[Black "Grupe, Fabian"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "67"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Qf3 Qf6 4. h4 h5 5. Nh3 Nh6 6. Ng5 Ng4 7. Nxf7 Nxf2 8. Nxe5 Nxe4 9. Qxe4 Bd6 10. Ng6+ Be7 11. Rf1 d5 12. Bb5+ c6 13. Qe2 Qxg6 14. Qe5 cxb5 15. Rf2 Nd7 16. Qe3 d4 17. Qb3 Bc5 18. Re2+ Kd8 19. Qxb5 Rf8 20. c3 dxc3 21. bxc3 Bf2+ 22. Rxf2 Rxf2 23. Kxf2 Qf6+ 24. Kg1 b6 25. Qd5 Rb8 26. Qg8+ Nf8 27. Ba3 Ba6 28. Qxf8+ Kd7 29. Qxb8 Qf1+ 30. Kh2 g5 31. Qd6+ Kc8 32. Qf8+ Kb7 33. Qxf1 Bxf1 34. hxg5 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.14"]
[Round "15"]
[White "Weissbrot, Boris"]
[Black "Hein, Esther"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "45"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bc5 3. Qf3 Nf6 4. g4 h5 5. gxh5 g6 6. hxg6 fxg6 7. Nh3 Nc6 8. Ng5 Rf8 9. Nf7 Rxf7 10. Bxf7+ Kxf7 11. 0-0 d5 12. exd5 g5 13. d3 g4 14. Qe2 Na5 15. h4 Nh7 16. Qxe5 Bd6 17. Qc3 b5 18. Bh6 b4 19. Qg7+ Ke8 20. Re1+ Be5 21. Rxe5+ Be6 22. Rxe6+ Qe7 23. Qxe7# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.13"]
[Round "12"]
[White "Brockmeyer, Tobias"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C42"]
[PlyCount "58"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 Qe7 4. d4 Qb4+ 5. c3 Qe7 6. Bg5 d6 7. Bb5+ c6 8. Bc4 dxe5 9. dxe5 Qxe5 10. Be3 Bg4 11. f3 Bh5 12. 0-0 Bc5 13. Bxc5 Qxc5+ 14. Rf2 Qxc4 15. b3 Qc5 16. b4 Qc4 17. Rf1 Nxe4 18. fxe4 Bxd1 19. Rxd1 Na6 20. Na3 Qxc3 21. Nb1 Qxa1 22. a3 Rd8 23. Rxd8+ Kxd8 24. Kf2 Qxb1 25. a4 Nxb4 26. Kf3 Re8 27. a5 Qxe4+ 28. Kf2 Qe3+ 29. Kf1 Qe1# 0-1

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.13"]
[Round "10"]
[White "Dryaev, Alan"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "95"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 Qe7 4. Nf3 Qxe4+ 5. Qe2 Qxe2+ 6. Bxe2 Bc5 7. 0-0 0-0 8. d3 d5 9. d4 Bd6 10. Nc3 Bg4 11. Bg5 Bxf3 12. Bxf3 Be7 13. Bxf6 Bxf6 14. Bxd5 Bxd4 15. Bxb7 Bxc3 16. bxc3 Nd7 17. Bxa8 Rxa8 18. Rad1 Ne5 19. Rd2 Nc4 20. Rd4 Nd6 21. Re1 a5 22. Rd2 Rb8 23. a3 h6 24. h3 a4 25. Rd4 g5 26. Rxa4 Rd8 27. Ra7 Nb5 28. Ra5 c6 29. a4 Nxc3 30. Ra6 c5 31. a5 Nd5 32. Ra7 h5 33. a6 c4 34. Rb7 Ra8 35. a7 g4 36. Rb8+ Rxb8 37. axb8Q+ Kg7 38. Qe5+ Kf8 39. Qxd5 c3 40. f3 gxf3 41. gxf3 h4 42. Re4 f6 43. Qf5 Kf7 44. Re6 Kg7 45. Qxf6+ Kg8 46. Qe7 Kh8 47. Rf6 Kg8 48. Rf8# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.13"]
[Round "11"]
[White "Weissbrot, Boris"]
[Black "Baars, Soeren"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "19"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Qf3 Nf6 4. Nc3 d6 5. Nd5 Bg4 6. Qg3 Be6 7. Nxf6+ gxf6 8. Bxe6 Rg8 9. Qxg8 Nb4 10. Qxf7# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.12"]
[Round "5"]
[White "Thormann, Georg"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "37"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 f6 4. 0-0 d6 5. Nc3 Bg4 6. d3 Bxf3 7. Qxf3 g6 8. Be3 f5 9. exf5 gxf5 10. Qh5+ Kd7 11. Qxf5+ Ke8 12. Qh5+ Ke7 13. Qg5+ Nf6 14. Nd5+ Ke8 15. Nxf6+ Ke7 16. Nxh7+ Ke8 17. Qg6+ Kd7 18. Be6+ Ke7 19. Bg5# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.12"]
[Round "7"]
[White "Weissbrot, Boris"]
[Black "Wilkening, Jonas"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "43"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bb4 4. c3 Ba5 5. b4 Bb6 6. 0-0 Nf6 7. d3 d6 8. Ng5 0-0 9. Bxf7+ Kh8 10. Ne6 Qe7 11. Nxf8 Qxf8 12. Bh5 Bg4 13. Bxg4 h5 14. Bxh5 Ne7 15. Bg5 Neg8 16. Bg6 Ng4 17. Qxg4 Qc8 18. Qh5+ Nh6 19. Bxh6 gxh6 20. Qxh6+ Kg8 21. Re1 Qf8 22. Qh7# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.12"]
[Round "8"]
[White "Zelleroehr, Sebastian"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C46"]
[PlyCount "44"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Bb5 Bxc3 5. bxc3 d5 6. exd5 Qxd5 7. 0-0 Qxb5 8. Kh1 e4 9. Nh4 Bg4 10. Qe1 Be2 11. Rg1 0-0-0 12. g4 Bf3+ 13. Ng2 Bxg2+ 14. Rxg2 Nf6 15. g5 Nh5 16. Rg1 Nf4 17. Qd1 e3 18. dxe3 Rxd1 19. Rxd1 Ne2 20. Bd2 Qd5+ 21. e4 Qxe4+ 22. f3 Qxf3# 0-1

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.11"]
[Round "1"]
[White "Heise, Tobias"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "780"]
[PlyCount "83"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 Nf6 3. e3 d5 4. c4 dxc4 5. Bxc4 Bg4 6. Nc3 Bxf3 7. Qxf3 e5 8. Bb5 exd4 9. exd4 a6 10. Bxc6+ bxc6 11. Qxc6+ Nd7 12. Qe4+ Be7 13. Nd5 0-0 14. Qxe7 Qxe7+ 15. Nxe7+ Kh8 16. 0-0 Rfe8 17. Nd5 c6 18. Nc7 Rec8 19. Nxa8 Rxa8 20. Bf4 Rb8 21. Bxb8 Nxb8 22. Rfe1 g6 23. Re8+ Kg7 24. Rxb8 a5 25. Re1 a4 26. Re7 Kf6 27. Rbb7 Kf5 28. Rxf7+ Ke4 29. Rxh7 Kxd4 30. Rb4+ Kc5 31. Rxa4 Kb5 32. Rb7+ Kxa4 33. Kf1 Ka5 34. Ke2 Ka6 35. Rb3 c5 36. Kd3 g5 37. Kc4 Ka7 38. Kxc5 Ka8 39. Kc6 Ka7 40. Rb4 Ka8 41. Rb5 Ka7 42. Ra5+ 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.11"]
[Round "3"]
[White "Reuker, Jari"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "1065"]
[PlyCount "99"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Nd4 Bc5 5. Nf5 g6 6. Ng3 Nh5 7. Nxh5 gxh5 8. Nxe4 Bb6 9. b3 Qh4 10. Ng3 Rg8 11. e3 Nc6 12. Bb2 d6 13. Qxh5 Qe7 14. Qxh7 Rg5 15. Qh8+ Kd7 16. Bf6 Qe6 17. Bxg5 d5 18. Qh3 Qxh3 19. gxh3 dxc4 20. bxc4 Ke8 21. 0-0-0 Be6 22. d4 Ba5 23. d5 Nb4 24. dxe6 Nxa2+ 25. Kb2 Nb4 26. Ka3 Nc2+ 27. Ka4 b6 28. Rc1 Ne1 29. c5 Bd2 30. Rc2 Nxc2 31. Kb3 Na1+ 32. Kb2 bxc5 33. exf7+ Kxf7 34. Kxa1 Bc3+ 35. Kb1 Rb8+ 36. Kc2 a5 37. Kxc3 a4 38. Bc4+ Ke8 39. h4 a3 40. h5 Ra8 41. h6 a2 42. Ra1 Ra3+ 43. Kb2 Ra8 44. Rxa2 Rxa2+ 45. Kxa2 c6 46. h7 Kd7 47. h8Q Kc7 48. Qd8+ Kb7 49. Qd7+ Kb6 50. Bd8# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.11"]
[Round "2"]
[White "Weissbrot, Boris"]
[Black "Koenig, Niclas"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "11"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nc6 3. Qf3 d5 4. exd5 g5 5. dxc6 g4 6. Qxf7# 1-0

[Event "Hannover-ch U10"]
[Site "Lehrte"]
[Date "2008.10.11"]
[Round "4"]
[White "Weissbrot, Boris"]
[Black "Seidenstuecker, Hannah Charlotte"]
[Result "1-0"]
[ECO "C23"]
[PlyCount "13"]
[EventDate "2008.10.11"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Bb4 3. Qf3 Nf6 4. g4 g5 5. h4 Rg8 6. hxg5 Nxg4 7. Qxf7# 1-0

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.03"]
[Round "8"]
[White "Thieu, Nguyen Gia Luat"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C30"]
[WhiteElo "770"]
[PlyCount "121"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. f4 f5 3. Nf3 Nf6 4. Bc4 Bc5 5. Nxe5 Nxe4 6. Nf7 Qh4+ 7. Ke2 Qf2+ 8. Kd3 Qxf4 9. Nxh8 Nf2+ 10. Kc3 Nxd1+ 11. Rxd1 Qd4+ 12. Kb3 d5 13. c3 Qxc4+ 14. Kc2 f4 15. b3 Bf5+ 16. d3 Bxd3+ 17. Rxd3 Qe4 18. Nd2 Qe5 19. Bb2 Qe2 20. c4 dxc4 21. bxc4 Bb4 22. Rd1 a5 23. a3 Bc5 24. Bxg7 Nc6 25. Rf3 Rd8 26. Rxf4 Be3 27. Rf8+ Kd7 28. Rxd8+ Nxd8 29. Bf6 Ne6 30. Bc3 Nc5 31. Nf7 Qd3+ 32. Kb2 Na4+ 33. Kb3 Nxc3 34. Ne5+ Kc8 35. Nxd3 Nxd1 36. Kc2 Nf2 37. Nxf2 Bxf2 38. g4 Be3 39. Ne4 Bf4 40. h4 h6 41. Kb3 b6 42. Ka4 c6 43. g5 hxg5 44. hxg5 c5 45. g6 Be5 46. Ng5 Kd7 47. Kb5 Bf6 48. Kxb6 Bxg5 49. g7 Ke8 50. g8Q+ Ke7 51. Qxg5+ Kd6 52. Qxc5+ Ke6 53. Qxa5 Kd6 54. c5+ Kd5 55. c6+ Kd4 56. c7 Kc4 57. c8Q+ Kb3 58. Qcc3+ Ka2 59. Qae5 Kb1 60. Qee1+ Ka2 61. Qea1# 1-0

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.03"]
[Round "9"]
[White "Weissbrot, Boris"]
[Black "Busche, Till"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "51"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Bc4 Nf6 5. d3 0-0 6. 0-0 d6 7. Bg5 Bg4 8. Bxf6 Qxf6 9. Nd5 Qd8 10. Bb5 Nd4 11. c3 Bc5 12. cxd4 Bxd4 13. Rb1 c6 14. Nb4 cxb5 15. Re1 Bc5 16. Nc2 Qb6 17. Rf1 Bxf3 18. Qxf3 Rac8 19. Ne3 Bxe3 20. fxe3 Rc2 21. Rf2 Rxf2 22. Qxf2 d5 23. exd5 Rd8 24. Rf1 Rxd5 25. Qxf7+ Kh8 26. Qf8# 1-0

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.02"]
[Round "5"]
[White "Dannenberg, Nicole"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "34"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Bc5 5. 0-0 0-0 6. d3 d6 7. Bg5 Bg4 8. a3 Nd4 9. Nd5 Nxf3+ 10. gxf3 Bh3 11. Re1 h6 12. Bxf6 gxf6 13. b4 Bd4 14. Rb1 c6 15. Nxf6+ Qxf6 16. f4 Qg6+ 17. Kh1 Qg2# 0-1

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.02"]
[Round "4"]
[White "Weissbrot, Boris"]
[Black "Heise, Tobias"]
[Result "0-1"]
[ECO "C48"]
[PlyCount "64"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d3 Bg4 6. Bxc6+ bxc6 7. Bg5 Be7 8. Bxf6 Bxf6 9. 0-0 0-0 10. h3 Bxf3 11. Qxf3 Rb8 12. Rad1 Rxb2 13. Rfe1 Rxc2 14. Na4 Rxa2 15. Nc3 Ra5 16. Ne2 d5 17. exd5 cxd5 18. d4 e4 19. Qg4 h6 20. Qf5 Qc8 21. Qf4 Bg5 22. Qg3 Re8 23. h4 Bd8 24. f3 exf3 25. gxf3 Ra6 26. f4 Rg6 27. Kf2 Rxg3 28. Kxg3 Re3+ 29. Kf2 Qh3 30. Rh1 Qf3+ 31. Kg1 Qxe2 32. Rf1 Rg3# 0-1

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.01"]
[Round "1"]
[White "Meier, Jonas"]
[Black "Weissbrot, Boris"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "43"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bb4+ 5. Nc3 Bxc3+ 6. bxc3 d6 7. Bg5 h6 8. Bxf6 gxf6 9. 0-0 Bg4 10. d4 exd4 11. cxd4 0-0 12. d5 Nb4 13. Qd2 c5 14. Qxh6 Nxc2 15. Rac1 Bxf3 16. Rxc2 Bxe4 17. Re2 Re8 18. Rxe4 Rxe4 19. Bd3 Rd4 20. Qh7+ Kf8 21. Re1 Qa5 22. Qh8# 1-0

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.01"]
[Round "2"]
[White "Weissbrot, Boris"]
[Black "Pysmenyy, Illya"]
[Result "0-1"]
[ECO "C48"]
[PlyCount "32"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. d3 a6 6. Bxc6 dxc6 7. Bg5 0-0 8. Bxf6 Qxf6 9. 0-0 Qg6 10. Nxe5 Qg5 11. Nf3 Qg6 12. Nh4 Qh6 13. Qg4 Bxg4 14. h3 Qxh4 15. Rae1 Bd6 16. hxg4 Qh2# 0-1

[Event "Hannover-ch U10"]
[Site "Bueckeburg"]
[Date "2007.11.01"]
[Round "3"]
[White "Wilke, Kent"]
[Black "Weissbrot, Boris"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "54"]
[EventDate "2007.11.01"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c3 Nc6 3. e3 Nf6 4. h3 e5 5. g4 exd4 6. exd4 g6 7. f4 h5 8. g5 Ne4 9. Bd3 Ng3 10. Rh2 Qe7+ 11. Ne2 Nxe2 12. Bxe2 Bf5 13. b3 Bxb1 14. Rxb1 0-0-0 15. a3 Bg7 16. b4 a5 17. b5 Nb8 18. b6 cxb6 19. Rxb6 Nd7 20. Rb2 Qxa3 21. Rb3 Qa2 22. Rb2 Qa1 23. Rb1 Qxc3+ 24. Kf1 Bxd4 25. Bd2 Qg3 26. Rf2 Bxf2 27. Bxa5 Qg1# 0-1

