[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.21"]
[Round "6.26"]
[White "Bergner, Matthias"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1632"]
[BlackElo "1213"]
[PlyCount "89"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 c6 2. Nf3 Nf6 3. g3 d5 4. Bg2 Bf5 5. 0-0 e6 6. c3 Bd6 7. Bg5 Nbd7 8. Nbd2 h6 9. Bxf6 Nxf6 10. Nh4 Bh7 11. Re1 Qc7 12. e4 dxe4 13. Nxe4 Nxe4 14. Bxe4 Bxe4 15. Rxe4 0-0-0 16. Nf3 g5 17. Ne5 f5 18. Re2 Bxe5 19. Rxe5 Qxe5 20. dxe5 Rxd1+ 21. Rxd1 Rd8 22. Rxd8+ Kxd8 23. f4 a5 24. Kf2 gxf4 25. gxf4 b5 26. a3 Kc7 27. Kg3 c5 28. Kh4 c4 29. Kh5 Kc6 30. Kxh6 b4 31. a4 Kd5 32. Kg5 Ke4 33. h4 Kd3 34. h5 bxc3 35. bxc3 Kxc3 36. h6 Kb3 37. h7 Kxa4 38. h8Q Kb3 39. Qb8+ Ka3 40. Qb5 c3 41. Qxa5+ Kb2 42. Qb6+ Kc1 43. Qxe6 c2 44. Qxf5 Kd2 45. Qxc2+ 1-0

[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.21"]
[Round "7.35"]
[White "Reinhold, Guenther"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "1716"]
[BlackElo "1213"]
[PlyCount "85"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 g6 6. Nxf5 gxf5 7. Nf3 e6 8. Bf4 Nd7 9. Bd3 Bg7 10. c3 Ne7 11. Ng5 h6 12. Nf3 Nd5 13. Bd6 N7f6 14. Be5 Rg8 15. Qe2 Qa5 16. 0-0 Nh5 17. Bxf5 Ndf4 18. Qe4 Bxe5 19. Nxe5 exf5 20. Qxf5 Rxg2+ 21. Kh1 Qd5 22. f3 Rg5 23. Qh7 f6 24. Nxc6 bxc6 25. Rae1+ Kd8 26. Qe7+ Kc8 27. Qe8+ Qd8 28. Qxc6+ Kb8 29. Re8 Qxe8 30. Qxe8+ Kb7 31. Qe4+ Nd5 32. c4 Rag8 33. cxd5 Rc8 34. d6+ Kb6 35. d5 Rc5 36. Rd1 Re5 37. Qb4+ Rb5 38. Qd4+ Kb7 39. Qc4 Rxb2 40. Qc6+ Kb8 41. Qc7+ Ka8 42. d7 Rb8 43. Qc6+ 1-0

[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.20"]
[Round "4.30"]
[White "Chua, Daniel James"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "1315"]
[BlackElo "1213"]
[PlyCount "65"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bf5 5. Ng3 g6 6. Nxf5 gxf5 7. Bc4 e6 8. Qe2 Bg7 9. d3 h6 10. c3 Nd7 11. Bf4 Qa5 12. 0-0 Ne7 13. Rae1 Nd5 14. Bd6 Bf8 15. Be5 Rg8 16. Nd4 Nxe5 17. Qxe5 Bg7 18. Qxf5 Bxd4 19. cxd4 Rg6 20. Qe5 Kd7 21. f4 f5 22. g3 h5 23. Re2 Rag8 24. Rfe1 h4 25. Bxd5 cxd5 26. Rc1 hxg3 27. h3 Rh6 28. Rec2 Qb6 29. Rc7+ Ke8 30. Rc8+ Kf7 31. R1c7+ Kg6 32. Rxg8+ Kh5 33. Qg7 1-0

[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.20"]
[Round "5.42"]
[White "De Boer, Alex"]
[Black "Filis, Fotios"]
[Result "1-0"]
[ECO "E76"]
[WhiteElo "1213"]
[PlyCount "73"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 Nf6 5. f4 c5 6. d5 0-0 7. Nf3 e6 8. Bd3 Na6 9. a3 Nc7 10. 0-0 Nfe8 11. Bc2 f5 12. e5 Rf7 13. Bb3 Bf8 14. Qe1 Rg7 15. Qg3 Be7 16. dxe6 Nxe6 17. Nd5 h6 18. Bd2 Kf7 19. Qh3 Nf8 20. Rae1 Kg8 21. Bc3 dxe5 22. Nxe5 Be6 23. Rd1 Bxd5 24. cxd5 Bf6 25. d6+ Kh7 26. Nf3 Bxc3 27. Ng5+ Kh8 28. Qxh6+ Nh7 29. bxc3 Qd7 30. Be6 Qc6 31. Nf7+ Rxf7 32. Bxf7 Nxd6 33. Bxg6 Qc7 34. Rxd6 Rg8 35. Bxh7 Qxh7 36. Qxh7+ Kxh7 37. Re1 1-0

[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.19"]
[Round "3.45"]
[White "De Boer, Alex"]
[Black "Derr, Oleg"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "1213"]
[BlackElo "1198"]
[PlyCount "45"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Bc4 a6 4. a4 Nc6 5. d3 Nf6 6. f4 d5 7. Bb3 Qa5 8. Bd2 Qc7 9. Nf3 d4 10. Ne2 e5 11. f5 Be7 12. 0-0 0-0 13. Qe1 Bd7 14. Qg3 Rfe8 15. Bh6 Nh5 16. Qg4 g6 17. Nh4 Qd6 18. Rf3 Qf6 19. Rh3 Ng7 20. Rf1 gxf5 21. Nxf5 Bxf5 22. Rxf5 Qg6 23. Bxf7+ 1-0

[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.19"]
[Round "2.26"]
[White "Jordake, Michael"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1744"]
[BlackElo "1213"]
[PlyCount "115"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nc3 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 Nf6 6. e4 d6 7. Be2 Be7 8. 0-0 0-0 9. h3 b6 10. Re1 Bb7 11. Bf3 Nd7 12. Nd5 Ne5 13. Be2 c6 14. Nxe7+ Qxe7 15. f4 c5 16. Qf2 Nc6 17. c3 Qxe4 18. Ba6 Qxe1+ 19. Qxe1 Bxa6 20. Qd2 Rad8 21. b3 Rfe8 22. Qd5 Ne7 23. Qf3 Ng6 24. Be3 Re7 25. Re1 Rde8 26. Qg3 f5 27. Bd2 Rxe1+ 28. Bxe1 Re4 29. c4 Nxf4 30. Kh2 g6 31. Bd2 Nh5 32. Qxd6 Kf7 33. Bh6 Re7 34. Bg5 Rb7 35. g4 Ng7 36. Qf6+ Kg8 37. Bh6 Rf7 38. Qd8+ Rf8 39. Qd5+ Rf7 40. Qa8+ Rf8 41. Qxa7 Rf7 42. Qxa6 fxg4 43. hxg4 Rf6 44. Qa8+ Rf8 45. Qd5+ Rf7 46. Qd8+ Rf8 47. Qxb6 Re8 48. Bxg7 Kxg7 49. a4 Re2+ 50. Kg3 Re3+ 51. Kf4 Rd3 52. g5 Rd4+ 53. Ke5 Rg4 54. Qf6+ Kg8 55. Qe6+ Kh8 56. Qxg4 h5 57. Qh4 Kh7 58. a5 1-0

[Event "Heusenstamm Sparkassen op-B 7th"]
[Site "Heusenstamm"]
[Date "2021.11.18"]
[Round "1.8"]
[White "De Boer, Alex"]
[Black "Michalski, Uwe"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1213"]
[BlackElo "1753"]
[PlyCount "62"]
[EventDate "2021.11.18"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nf6 5. Nc3 b6 6. Nf3 Bb7 7. Be2 e6 8. b3 Bd6 9. 0-0 Nc6 10. Bb2 0-0 11. Re1 Ne7 12. Ne5 Nf5 13. Nb5 Be7 14. Rc1 a6 15. Na3 Nxd4 16. Bxd4 Bxa3 17. Rc2 Qe7 18. Bf3 Bxf3 19. Qxf3 Nd7 20. Nc6 Qd6 21. Rd1 e5 22. Bb2 Qg6 23. Rcd2 e4 24. Bxa3 Qxc6 25. Qh3 Nc5 26. b4 Nd3 27. b5 Qxc4 28. Bxf8 Rxf8 29. bxa6 Qxa6 30. Qe3 Qc4 31. f3 f5 1/2-1/2

[Event "DSOL 07 Liga Gr-C 1st"]
[Site "Playchess.com INT"]
[Date "2020.07.27"]
[Round "6.4"]
[White "De Boer, Alex"]
[Black "Schneider, Soenke"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "1346"]
[BlackElo "1450"]
[PlyCount "142"]
[EventDate "2020.06.22"]
[EventType "team-tourn (rapid)"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Bickenbach II"]
[BlackTeam "Oberursel III"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nc3 Nc6 3. Bc4 Bc5 4. Nf3 d6 5. h3 Be6 6. Bb3 Nf6 7. d3 Qd7 8. Be3 Bb6 9. Bg5 h6 10. Bxf6 gxf6 11. Nd5 Bxd5 12. Bxd5 0-0-0 13. Qe2 Rhg8 14. Rg1 Nd4 15. 0-0-0 Nxe2+ 16. Kb1 Nxg1 17. Rxg1 Bxf2 18. Rf1 Bb6 19. g4 h5 20. Nh4 hxg4 21. hxg4 Rxg4 22. Nf5 Rg1 23. Rxg1 Bxg1 24. a3 Rh8 25. Ka2 c6 26. Bb3 d5 27. Ng3 dxe4 28. Nxe4 Rh2 29. Nxf6 Qf5 30. Ne4 Bd4 31. Nd6+ Kd7 32. Nxf5 f6 33. Ng3 Rf2 34. Ne4 Rf4 35. Ng3 f5 36. Nh5 Rf2 37. Ng3 f4 38. Nh5 f3 39. Nf6+ Ke7 40. Ne4 Rh2 41. c3 f2 42. Nxf2 Bxf2 43. Kb1 Rh3 44. Kc2 Kd6 45. Bf7 Be3 46. Bg6 Rh2+ 47. Kb1 Ke6 48. Be4 Kd6 49. Bg6 b6 50. Be4 c5 51. Bg6 Ke7 52. Be4 Kf6 53. Bc6 Kg5 54. Be4 Kf4 55. Bc6 c4 56. dxc4 e4 57. a4 Bg1 58. Bb5 e3 59. c5 bxc5 60. Ka1 e2 61. Bxe2 Rxe2 62. b4 cxb4 63. cxb4 Ke4 64. b5 Kd3 65. a5 Kc3 66. Kb1 Rc2 67. b6 Bxb6 68. axb6 axb6 69. Ka1 Kb3 70. Kb1 b5 71. Ka1 Rc1# 0-1

[Event "DSOL 07 Liga Gr-C 1st"]
[Site "Playchess.com INT"]
[Date "2020.07.24"]
[Round "5.3"]
[White "De Boer, Alex"]
[Black "Adelt, Hardy"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1346"]
[BlackElo "1592"]
[PlyCount "41"]
[EventDate "2020.06.22"]
[EventType "team-tourn (rapid)"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Bickenbach II"]
[BlackTeam "Brand SF II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 a6 5. a4 g6 6. Bc4 e6 7. 0-0 Bg7 8. Qe1 Nge7 9. d3 0-0 10. f5 exf5 11. Qh4 fxe4 12. dxe4 Ne5 13. Nxe5 Bxe5 14. Bg5 Re8 15. Nd5 Be6 16. Nxe7+ Rxe7 17. Bxe7 Qd7 18. Bxe6 Qxe6 19. Bf6 Re8 20. Bxe5 Qxe5 21. Qf6 1-0

[Event "DSOL 07 Liga Gr-C 1st"]
[Site "Playchess.com INT"]
[Date "2020.06.24"]
[Round "1.4"]
[White "De Boer, Alex"]
[Black "Kamleiter, Noah"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1346"]
[BlackElo "1453"]
[PlyCount "77"]
[EventDate "2020.06.22"]
[EventType "team-tourn (rapid)"]
[EventCountry "GER"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]
[WhiteTeam "Bickenbach II"]
[BlackTeam "Kelheim II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. f4 Bg7 6. Nf3 d6 7. 0-0 Nf6 8. d3 0-0 9. Qe1 Ba6 10. Ng5 e6 11. Qh4 h6 12. Nh3 d5 13. f5 dxe4 14. fxg6 fxg6 15. Nxe4 Qd4+ 16. Rf2 Nxe4 17. Qxe4 Qxe4 18. dxe4 Bd4 19. Bxh6 Bxf2+ 20. Nxf2 Rf6 21. Ng4 Rf7 22. Ne5 Rh7 23. Be3 Kg7 24. Bxc5 Rh5 25. Bd4 Bb7 26. Ng4+ Kf8 27. Rf1+ Ke7 28. Bf6+ Kd7 29. Ne5+ Kc7 30. Nxg6 Ba6 31. Rd1 Rh6 32. Be5+ Kc8 33. Ne7+ Kb7 34. Rd7+ Kb6 35. Rd6 Bb7 36. Nd5+ Ka5 37. Bc3+ Ka4 38. Nc7 Rc8 39. Rd4# 1-0

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.24"]
[Round "6"]
[White "Burow, Roger"]
[Black "De Boer, Alex"]
[Result "0-1"]
[ECO "C21"]
[WhiteElo "1670"]
[BlackElo "1094"]
[PlyCount "36"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 d6 6. Nc3 Nc6 7. Nf3 Bg4 8. h4 Nf6 9. Nd5 Ne5 10. Bxe5 dxe5 11. Nxf6+ Qxf6 12. Qb3 Bxf3 13. gxf3 b6 14. Rd1 Bc5 15. Bb5+ c6 16. Qd5 0-0 17. Qxc6 Qxf3 18. 0-0 Bxf2+ 0-1

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.24"]
[Round "7"]
[White "De Boer, Alex"]
[Black "Traut, Stefan"]
[Result "1-0"]
[ECO "B72"]
[WhiteElo "1094"]
[BlackElo "1585"]
[PlyCount "77"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bb5+ Bd7 8. 0-0 0-0 9. Qd2 a6 10. Ba4 b5 11. Bb3 Nc6 12. Nxc6 Bxc6 13. Bd5 Rc8 14. a3 Qc7 15. Bh6 e6 16. Bxc6 Qxc6 17. Bxg7 Kxg7 18. Rfe1 Rfd8 19. Re3 Rd7 20. Rae1 d5 21. e5 Ng8 22. Rd3 Rcd8 23. Rd1 Qc7 24. Qf4 Qb7 25. Qh4 h6 26. Rd4 Qc7 27. Qg3 Rc8 28. Qf4 Qd8 29. R1d2 Qe7 30. Ne4 Rc6 31. Nd6 Rdc7 32. c3 f6 33. Re2 f5 34. Re3 g5 35. Qf3 g4 36. Qf4 Qf8 37. h3 Kh7 38. hxg4 fxg4 39. Qxf8 1-0

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.23"]
[Round "4"]
[White "Brunner, Andreas"]
[Black "De Boer, Alex"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "1449"]
[BlackElo "1094"]
[PlyCount "76"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. b3 d5 4. cxd5 cxd5 5. Bb2 Bf5 6. d3 e6 7. g3 Nc6 8. Bg2 Bb4+ 9. Nbd2 0-0 10. 0-0 Re8 11. a3 Bd6 12. Nh4 Bg4 13. Nhf3 Bf5 14. Re1 Qb6 15. Bxf6 gxf6 16. e4 Bg6 17. b4 a5 18. exd5 exd5 19. Rxe8+ Rxe8 20. Nb3 axb4 21. a4 Ne5 22. Ne1 Rd8 23. d4 Nc6 24. Rc1 Qa7 25. Nc5 Ne7 26. Qd2 b6 27. Ncd3 Qxa4 28. Nf4 Qa5 29. Qb2 Qa3 30. Qa1 Ra8 31. Qxa3 bxa3 32. Nxg6 fxg6 33. f4 a2 34. Ra1 Bb4 35. Nc2 Bc3 36. Rc1 a1Q 37. Nxa1 Rxa1 38. Rxa1 Bxa1 0-1

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.23"]
[Round "5"]
[White "De Boer, Alex"]
[Black "Emrich, Franz"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1094"]
[BlackElo "1572"]
[PlyCount "74"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bg5 Be7 6. c4 Be6 7. Nc3 c6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Be2 0-0 11. 0-0 Nf6 12. Re1 Qd8 13. Qc2 Nbd7 14. Bd3 h6 15. Ne5 Re8 16. Nc4 Nf8 17. Rad1 Qc7 18. b3 Ng4 19. Ne5 Nxe5 20. dxe5 Rad8 21. Nb5 Qb6 22. Nd6 Re7 23. Nc4 Qc7 24. Nd6 Red7 25. Qe2 Qa5 26. Rd2 a6 27. Red1 Qc7 28. Kh1 Kh8 29. Qf3 b5 30. Bf5 Kg8 31. Qf4 Qa5 32. Qf3 Bxf5 33. Qxf5 Ne6 34. h3 Qc7 35. Qg4 Kf8 36. Qh5 Kg8 37. Qg4 Kf8 1/2-1/2

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.22"]
[Round "3"]
[White "De Boer, Alex"]
[Black "Follert, Christian"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "1094"]
[BlackElo "1392"]
[PlyCount "45"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Ndb5 a6 7. Na3 Bg7 8. Bg5 0-0 9. Nc4 h6 10. Bh4 b5 11. Ne3 Qa5 12. Bd3 Nh5 13. Qd2 Nf4 14. 0-0 Nxd3 15. Qxd3 Bb7 16. Qxd7 Rab8 17. Ned5 Kh8 18. Bxe7 Ne5 19. Qh3 Bc8 20. Qh4 g5 21. Qg3 Re8 22. Bd6 Ra8 23. Bc7 1-0

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.22"]
[Round "2"]
[White "Moldenhauer, Nils"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1453"]
[BlackElo "1094"]
[PlyCount "203"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d3 Bg4 6. 0-0 h6 7. Nbd2 Nf6 8. Re1 0-0 9. Nf1 Nh5 10. h3 Bxf3 11. Qxf3 Qf6 12. Qxf6 Nxf6 13. Be3 Bb6 14. Ng3 Ne7 15. Rad1 c6 16. d4 Ng6 17. Rf1 Bc7 18. d5 c5 19. Bd3 Bd8 20. c4 Nh7 21. Nf5 Bc7 22. a3 Rfe8 23. b4 b6 24. Rb1 Rab8 25. f4 exf4 26. Bxf4 Nxf4 27. Rxf4 Nf6 28. Re1 Re5 29. Nxh6+ Kf8 30. Nf5 Rbe8 31. Rh4 g6 32. Ng3 Kg7 33. Rf4 Rg5 34. Ref1 Bd8 35. Ne2 Rh8 36. Kh2 Ng4+ 37. Kh1 f6 38. R4f3 Ne5 39. Re3 Rh4 40. Rf4 Rh8 41. Nc3 Ng4 42. Ref3 Ne5 43. Re3 Ng4 44. Re1 Ne5 45. Be2 Nf7 46. Bg4 Ne5 47. Be2 Nf7 48. Kh2 Re5 49. Ref1 Rhe8 50. Bd3 Rh8 51. Nb5 a6 52. Na7 Rg5 53. Nc6 Rf8 54. Nb8 Ne5 55. Be2 a5 56. bxa5 bxa5 57. Rd1 Rf7 58. g4 Nd7 59. Nc6 Bc7 60. h4 Re5 61. Nxe5 dxe5 62. Rf3 Bb6 63. h5 g5 64. Rh3 Kh6 65. Rb1 Rf8 66. Bd1 Rb8 67. Rf3 Kg7 68. Ba4 Nf8 69. Rd3 Kh6 70. d6 Ne6 71. d7 Kg7 72. Rxb6 Rxb6 73. d8Q Nxd8 74. Rxd8 Rb2+ 75. Kg1 Re2 76. Rd5 Rxe4 77. Rxc5 Rxg4+ 78. Kf2 Rf4+ 79. Kg3 Kh6 80. Bd1 Rd4 81. Be2 Rd2 82. Kf2 g4 83. Kf1 Kxh5 84. Rc8 Rd4 85. c5 Kh4 86. Rh8+ Kg3 87. Rg8 Rf4+ 88. Kg1 Re4 89. Rxg4+ Rxg4 90. Bxg4 Kxg4 91. c6 e4 92. c7 e3 93. c8Q+ f5 94. Kf1 a4 95. Ke2 Kg3 96. Qxf5 Kh4 97. Kf3 e2 98. Kxe2 Kg3 99. Ke3 Kh4 100. Qg6 Kh3 101. Kf3 Kh2 102. Qg2# 1-0

[Event "Heusenstamm Sparkassen op-B 6th"]
[Site "Heusenstamm"]
[Date "2019.11.21"]
[Round "1"]
[White "De Boer, Alex"]
[Black "Ghaznavi, Massoud"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1094"]
[BlackElo "1562"]
[PlyCount "80"]
[EventDate "2019.11.21"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "CBM 194 Extra"]
[Source "ChessBase"]
[SourceDate "2020.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.03.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. f3 h6 4. Nc3 e6 5. Be3 Bb4 6. Bd3 Ne7 7. Nge2 Ng6 8. 0-0 0-0 9. a3 Be7 10. e5 Bg5 11. Qd2 f5 12. exf6 Qxf6 13. f4 Bh4 14. g3 Nd7 15. gxh4 Nxh4 16. Ng3 Qe7 17. Qe2 c5 18. dxc5 Nxc5 19. Bxc5 Qxc5+ 20. Kh1 Bd7 21. Qf2 Qd6 22. Bb5 Bc8 23. Nh5 Nf5 24. Bd3 d4 25. Ne4 Qd5 26. Qg2 Kh8 27. Rfe1 Rg8 28. Kg1 Bd7 29. Nhg3 Nh4 30. Qf2 Raf8 31. Ne2 Nf5 32. N4g3 Ne3 33. Be4 Qd6 34. Nf1 Ng4 35. Qg3 Nf6 36. Bd3 Bc6 37. Bc4 Nh5 38. Qg6 Nxf4 39. Nxf4 Qxf4 40. Bd3 Qf2# 0-1

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.29"]
[Round "6"]
[White "De Boer, Alex"]
[Black "Zhu, Andy"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "777"]
[PlyCount "50"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Ng5 Qxg5 5. 0-0 Qd8 6. Nc3 Nf6 7. d3 d6 8. Bg5 h6 9. Bd2 0-0 10. Nd5 Be6 11. b4 Bd4 12. Rb1 a6 13. a4 Bg4 14. Qe1 Nxd5 15. exd5 Ne7 16. Qe4 f5 17. Qe1 Rf6 18. h3 Bh5 19. c3 Ba7 20. Ra1 Rg6 21. g3 f4 22. g4 Bxg4 23. hxg4 Rxg4+ 24. Kh2 Nf5 25. Qe2 Qh4# 0-1

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.29"]
[Round "7"]
[White "Krasowitzki, Jan"]
[Black "De Boer, Alex"]
[Result "0-1"]
[ECO "A01"]
[BlackElo "777"]
[PlyCount "30"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 a6 5. Ba4 b5 6. Bxb5 axb5 7. Nf3 d5 8. Bxe5 Nxe5 9. Nxe5 Bd6 10. Nd3 c6 11. Nc3 Bf5 12. 0-0 Bxd3 13. cxd3 Bb8 14. e4 Qc7 15. exd5 Qxh2# 0-1

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.29"]
[Round "5"]
[White "Tornay, Aritz"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "C44"]
[BlackElo "777"]
[PlyCount "42"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 Nf6 4. Bg5 h6 5. Bxf6 Qxf6 6. Bc4 exd4 7. 0-0 Bc5 8. Re1 0-0 9. e5 Qf4 10. g3 Qg4 11. h3 Qxh3 12. c3 dxc3 13. bxc3 Na5 14. Nh4 Kh8 15. Bd3 g5 16. Bf5 Qxf5 17. Nxf5 d6 18. Nxh6 Kh7 19. Ng4 f5 20. Nf6+ Kg6 21. Qa4 b6 1-0

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.28"]
[Round "4"]
[White "De Boer, Alex"]
[Black "Boerkey, Joel"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "777"]
[BlackElo "1333"]
[PlyCount "104"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 c5 2. Bc4 Nc6 3. d3 Nf6 4. Bg5 e6 5. Bxf6 Qxf6 6. Nf3 Qxb2 7. Nbd2 Qf6 8. Qe2 Qxa1+ 9. Qd1 Qxd1+ 10. Kxd1 Be7 11. e5 0-0 12. d4 b6 13. dxc5 Bxc5 14. a4 Bxf2 15. Ne4 Bc5 16. Nd6 Bxd6 17. exd6 a6 18. Bd3 b5 19. Ke2 bxa4 20. Ra1 Re8 21. Kd2 e5 22. Rxa4 g6 23. g4 Bb7 24. Be4 Na5 25. Bxb7 Nxb7 26. Rb4 Nxd6 27. c3 e4 28. Nd4 e3+ 29. Ke2 Ne4 30. c4 Nc3+ 31. Ke1 Rac8 32. h4 e2 33. Rb2 Re4 34. Nxe2 Rce8 35. Kd2 Rxe2+ 36. Kxc3 R8e3+ 37. Kb4 Rxb2+ 38. Kc5 Rd2 39. Kb6 Rb3+ 40. Kc5 d6+ 41. Kc6 Rc3 42. h5 Rxc4+ 43. Kd7 Kf8 44. hxg6 fxg6 45. g5 Re2 46. Kd8 a5 47. Kd7 a4 48. Kxd6 Rc1 49. Kd5 a3 50. Kd6 a2 51. Kd5 a1Q 52. Kd6 Qd4# 0-1

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.28"]
[Round "2"]
[White "De Boer, Alex"]
[Black "Brehm, Jannis"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "777"]
[PlyCount "57"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bb4+ 4. Nc3 Ng4 5. Qxg4 d5 6. Bxd5 Bxg4 7. h4 c6 8. Bc4 0-0 9. Bg5 Qd4 10. Nf3 Bxf3 11. gxf3 Bxc3+ 12. bxc3 Qxc3+ 13. Ke2 Qxc2+ 14. Bd2 Na6 15. Rac1 Qa4 16. Rhg1 Kh8 17. Bb3 Qd4 18. Be3 Qd6 19. Rg4 Rad8 20. Rd1 Nb4 21. f4 Qh6 22. fxe5 Qh5 23. f3 b5 24. Rg5 Qxh4 25. Rdg1 a5 26. Rxg7 a4 27. Bxf7 Rd7 28. Rg8+ Rxg8 29. Rxg8# 1-0

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.28"]
[Round "3"]
[White "Werner, Rosalie"]
[Black "De Boer, Alex"]
[Result "0-1"]
[ECO "C47"]
[BlackElo "777"]
[PlyCount "72"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d3 Nh5 5. Bg5 f6 6. Be3 Bc5 7. Bxc5 b6 8. Bb4 Nxb4 9. d4 Ba6 10. Bxa6 Nxa6 11. 0-0 exd4 12. Nxd4 f5 13. Qxh5+ g6 14. Qf3 h5 15. Nd5 c6 16. e5 cxd5 17. Qxd5 Nc7 18. Qc4 Rb8 19. Rae1 b5 20. Qb3 g5 21. a4 b4 22. Qa2 f4 23. Nf5 Rf8 24. Ng7+ Ke7 25. Nxh5 g4 26. Qc4 Rg8 27. Nf6 Rg7 28. Nd5+ Nxd5 29. Qxd5 f3 30. gxf3 gxf3+ 31. Kh1 Qe8 32. Rg1 Rxg1+ 33. Rxg1 Qf7 34. Qe4 Rg8 35. Rxg8 Qxg8 36. c3 Qg2# 0-1

[Event "Hessen-ch U10"]
[Site "Bad Homburg"]
[Date "2015.03.27"]
[Round "1"]
[White "Lehmann, Nils"]
[Black "De Boer, Alex"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1426"]
[BlackElo "777"]
[PlyCount "31"]
[EventDate "2015.03.27"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 g6 4. d3 Nf6 5. Nc3 Bg7 6. Bg5 0-0 7. Nd5 h6 8. Nxf6+ Bxf6 9. Be3 Nd4 10. c3 Nxf3+ 11. Qxf3 d6 12. 0-0-0 Bd7 13. d4 exd4 14. Bxd4 Qc8 15. Qxf6 Qd8 16. Qg7# 1-0

