[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.06.03"]
[Round "9"]
[White "Mainka, Ingmar"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1546"]
[BlackElo "1677"]
[PlyCount "123"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bc4 Ne5 8. Be2 Qg6 9. 0-0 0-0 10. Nd2 d5 11. Bh5 Qd6 12. f4 Nc4 13. Nxc4 dxc4 14. Qe2 Qa6 15. Kh1 Re8 16. Bxf7+ Kxf7 17. Qh5+ Qg6 18. Qxc5 Qxe4 19. Qxc4+ Be6 20. Qxe6+ Qxe6 21. Nxe6 Kxe6 22. Bd4 Kf7 23. Rad1 c6 24. Bc5 b6 25. Bxe7 Rxe7 26. Rd2 Rae8 27. Kg1 Re2 28. Rfd1 c5 29. Kf1 R2e4 30. g3 R8e7 31. Rd7 Re1+ 32. Rxe1 Rxd7 33. Ke2 Re7+ 34. Kd2 Rd7+ 35. Kc2 Kf8 36. Re5 Kf7 37. a4 Rd8 38. a5 Rd7 39. axb6 axb6 40. g4 Rd6 41. Re3 Kf6 42. h3 h6 43. Rd3 Re6 44. Kd2 h5 45. Re3 Rd6+ 46. Ke2 hxg4 47. hxg4 Rd7 48. Re5 Rd6 49. Re8 Kf7 50. Rb8 Ke6 51. Rb7 g6 52. Ke3 Kd5 53. b3 Re6+ 54. Kf3 Rd6 55. Re7 b5 56. Re5+ Kc6 57. f5 gxf5 58. gxf5 c4 59. b4 Rd3+ 60. Ke4 Rxc3 61. f6 Rd3 62. f7 1-0

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.06.02"]
[Round "8"]
[White "Weis, Constantin"]
[Black "Weyerer, Noah"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "1677"]
[BlackElo "1677"]
[PlyCount "84"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 Nf6 4. e5 Nfd7 5. d4 c5 6. Ne2 cxd4 7. Nexd4 Nc6 8. Nxc6 bxc6 9. c3 Qc7 10. Bf4 Qb6 11. Qc2 Ba6 12. Bxa6 Qxa6 13. Qe2 Qb7 14. 0-0 Be7 15. b3 0-0 16. Ng5 Rfe8 17. Qh5 Bxg5 18. Qxg5 c5 19. Rfd1 Nf8 20. h4 Qe7 21. Qg3 f6 22. h5 fxe5 23. Bxe5 Nd7 24. Bf4 Qf7 25. h6 e5 26. Bd2 g6 27. Re1 Qf5 28. Rad1 Nf6 29. Bc1 d4 30. cxd4 cxd4 31. f3 Rac8 32. Re2 Nd5 33. Rde1 d3 34. Re4 Nc3 35. Rxe5 Rxe5 36. Rxe5 Ne2+ 37. Rxe2 dxe2 38. Bd2 Qc5+ 39. Kh2 Qd4 40. Qh3 Qd6+ 41. Bf4 Qxf4+ 42. g3 Qf5 0-1

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.06.01"]
[Round "7"]
[White "Weis, Constantin"]
[Black "Storm, Max"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1677"]
[BlackElo "1703"]
[PlyCount "61"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Bd3 Be7 7. 0-0 b6 8. c3 Bb7 9. Qe2 h6 10. Re1 0-0 11. Nxf6+ Nxf6 12. Ne5 c5 13. Be3 Qd5 14. f3 cxd4 15. Bxd4 Bc5 16. Bxc5 Qxc5+ 17. Kh1 Rac8 18. Rad1 Rfd8 19. Bb1 Qe7 20. a4 Nh5 21. Qc2 Qg5 22. Qh7+ Kf8 23. Qh8+ Ke7 24. Rxd8 Ng3+ 25. Kg1 Ne2+ 26. Kf1 Qxe5 27. Rxc8 Ng3+ 28. hxg3 Ba6+ 29. c4 Qd4 30. Qe8+ Kf6 31. Qd8+ 1-0

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.05.31"]
[Round "6"]
[White "Dorendorf, Mika"]
[Black "Weis, Constantin"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "1782"]
[BlackElo "1677"]
[PlyCount "83"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 0-0 8. Bd3 h6 9. Bh4 Re8 10. Nf3 Nbd7 11. 0-0 Ne4 12. Bxe7 Qxe7 13. Rab1 Nd6 14. b4 b5 15. a4 a6 16. a5 Rb8 17. Nd2 Nc4 18. Qa2 Nf6 19. Rfe1 Nxd2 20. Qxd2 Ne4 21. Bxe4 dxe4 22. Rec1 Be6 23. Ne2 Bc4 24. Rc3 Rbd8 25. Qe1 Qf6 26. Nc1 Qd6 27. Ra3 h5 28. Nb3 Ra8 29. Nc5 g6 30. Rc3 Bd5 31. Qc1 Kh7 32. Rb2 Kg8 33. Qd2 Kh7 34. Rc1 Qe7 35. Qc3 Qd6 36. Rf1 Bc4 37. Re1 Re7 38. Qc2 Bd5 39. Qc1 Qf6 40. Rc2 Qg5 41. Qd1 f5 42. Qe2 1/2-1/2

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.05.31"]
[Round "5"]
[White "Weis, Constantin"]
[Black "Laag, Pascal Benedikt"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1677"]
[BlackElo "1642"]
[PlyCount "65"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. Bxc6+ bxc6 5. 0-0 Bg4 6. h3 Bh5 7. c3 Bg6 8. Qa4 Qb6 9. Re1 Qb5 10. Qxb5 cxb5 11. a4 bxa4 12. Rxa4 d5 13. d3 Nf6 14. Ne5 e6 15. Nxg6 hxg6 16. exd5 Nxd5 17. Na3 Kd7 18. Bd2 Be7 19. Nc4 Nb6 20. Ne5+ Kc7 21. Ra5 Rhf8 22. Be3 Nd7 23. Nxd7 Kxd7 24. Bxc5 Bxc5 25. Rxc5 Rab8 26. b4 Rh8 27. Ra1 Rb7 28. Rca5 Ra8 29. Kf1 Kc6 30. Ra6+ Kd7 31. Ke2 Rc7 32. c4 Ke7 33. b5 1-0

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.05.30"]
[Round "4"]
[White "Beberhold, Otto Richard"]
[Black "Weis, Constantin"]
[Result "0-1"]
[ECO "A52"]
[WhiteElo "1427"]
[BlackElo "1677"]
[PlyCount "106"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Nd4 Ngxe5 7. Nc3 0-0 8. Be2 Re8 9. 0-0 a5 10. b3 Ne7 11. Bb2 d5 12. cxd5 Nxd5 13. Ndb5 Nxc3 14. Bxc3 Qe7 15. Qc2 c6 16. Nd4 Bb6 17. Nf5 Qf6 18. Nd4 Qe7 19. Rad1 Be6 20. Nf3 Ng4 21. h3 Nf6 22. Ng5 g6 23. Qb2 Nd5 24. Nxe6 Nxc3 25. Qxc3 Qxe6 26. Bc4 Qe7 27. Rfe1 Bc5 28. Re2 Bb4 29. Qc2 Red8 30. e4 Rxd1+ 31. Qxd1 Rd8 32. Qc2 Qe5 33. g3 h5 34. Kg2 h4 35. Qc1 b5 36. Bxf7+ Kxf7 37. Qxc6 hxg3 38. fxg3 Bd6 39. Qd5+ Qxd5 40. exd5 Bc5 41. Rd2 Kf6 42. Kf3 Kf5 43. g4+ Ke5 44. a4 bxa4 45. bxa4 Rxd5 46. Rxd5+ Kxd5 47. Kf4 Be7 48. g5 Bb4 49. h4 Bd2+ 50. Kf3 Kc4 51. Ke4 Be1 52. h5 gxh5 53. g6 Bc3 0-1

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.05.29"]
[Round "3"]
[White "Weis, Constantin"]
[Black "Mohebbi, Sam"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1677"]
[BlackElo "1555"]
[PlyCount "85"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 Be7 6. Ne2 0-0 7. 0-0 Nbd7 8. c4 c5 9. Nbc3 cxd4 10. Nxd4 Ne5 11. Be2 Bd7 12. Be3 a6 13. Nb3 Rc8 14. Qd4 Nc6 15. Qd2 Bb4 16. a3 Be7 17. Nc5 Bxc5 18. Bxc5 Re8 19. Qe3 Qc7 20. Rfd1 Qe5 21. Qxe5 Nxe5 22. Bd4 Neg4 23. Bxg4 Nxg4 24. Bxg7 Kxg7 25. Rxd7 Rxc4 26. h3 Ne5 27. Rxb7 Nd3 28. Nd1 Rec8 29. Kf1 R8c6 30. Ne3 R4c5 31. Rd1 Rd6 32. g3 Rc1 33. Rxc1 Nxc1 34. b4 Nd3 35. a4 Rd4 36. Ke2 Nxb4 37. Rb6 h5 38. Ng2 e5 39. Ne3 Kg8 40. Nf5 Rc4 41. Nd6 Rd4 42. Rb8+ Kg7 43. Nf5+ 1-0

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.05.28"]
[Round "2"]
[White "Direk, Oguzhan"]
[Black "Weis, Constantin"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1553"]
[BlackElo "1677"]
[PlyCount "90"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bf4 c5 4. e3 cxd4 5. exd4 a6 6. Nf3 Nc6 7. Ne5 Qb6 8. Nxc6 Qxc6 9. Be2 e6 10. 0-0 Be7 11. Re1 0-0 12. a3 Bd7 13. Bd3 b5 14. Ne2 a5 15. Qd2 b4 16. axb4 axb4 17. c3 Qb7 18. f3 Bb5 19. Bxb5 Qxb5 20. Reb1 Nd7 21. Nc1 Nb6 22. Na2 Nc4 23. Qd3 bxc3 24. bxc3 Qc6 25. Nb4 Bxb4 26. Rxa8 Rxa8 27. Rxb4 h6 28. g4 Rc8 29. Kg2 Qa6 30. h4 Qa2+ 31. Kg3 Qa1 32. Rb1 Qa3 33. g5 hxg5 34. hxg5 Nd6 35. Bxd6 Qxd6+ 36. f4 Qa3 37. Kg4 Qxc3 38. Qxc3 Rxc3 39. Rb4 Re3 40. Rb8+ Kh7 41. Rb7 Kg6 42. Rb4 Re4 43. Ra4 f6 44. gxf6 gxf6 45. Rb4 e5 0-1

[Event "GER-ch U25-B"]
[Site "Willingen"]
[Date "2023.05.28"]
[Round "1"]
[White "Weis, Constantin"]
[Black "Sitnik, Arthur"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "1677"]
[BlackElo "1267"]
[PlyCount "46"]
[EventDate "2023.05.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 5. 0-0 d6 6. c3 b5 7. Bb3 Bg4 8. h3 Bh5 9. d3 Nh6 10. Bd5 Qd7 11. Nxe5 Nxe5 12. Qxh5 c6 13. Bb3 Nxd3 14. Bxh6 gxh6 15. Qxh6 0-0-0 16. Qf6 Rhg8 17. Qxf7 Rgf8 18. Qxd7+ Kxd7 19. Nd2 Nxf2 20. Kh2 Be3 21. Nf3 Nxe4 22. g3 d5 23. Rae1 Bf2 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "6"]
[White "Bassenhoff, Aljoscha"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "1830"]
[BlackElo "1637"]
[PlyCount "47"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. 0-0 c5 6. cxd5 exd5 7. d4 c4 8. b3 cxb3 9. Qxb3 0-0 10. Nc3 Be6 11. Bf4 Nbd7 12. Nb5 Ne4 13. Rac1 Ndf6 14. Bc7 Qd7 15. Ne5 Qe8 16. Ba5 Nd2 17. Bxd2 Qd8 18. Nc7 Rc8 19. Nxe6 fxe6 20. Rxc8 Qxc8 21. Rc1 Qb8 22. Bg5 h6 23. Bxf6 Bxf6 24. Nd7 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "2"]
[White "Reis, Gerhard"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "1969"]
[BlackElo "1637"]
[PlyCount "63"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. g3 0-0 6. Bg2 c6 7. 0-0 Nbd7 8. Nd2 Qc7 9. e4 dxe4 10. Ndxe4 e5 11. d5 cxd5 12. cxd5 Nxe4 13. Nxe4 Bd6 14. Bd2 f5 15. Rc1 Qb8 16. Nxd6 Qxd6 17. Qb3 a5 18. Rfd1 Nf6 19. Be3 Rd8 20. Bc5 Qd7 21. d6+ Kh8 22. Bb6 Re8 23. Rc7 Qe6 24. Bxb7 Rb8 25. Qxe6 Bxe6 26. Bxa5 Bxa2 27. d7 Red8 28. Rc8 Rbxc8 29. dxc8Q Rxc8 30. Bxc8 Bb3 31. Rd8+ Bg8 32. Bxf5 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "10"]
[White "Schulz, Bernd"]
[Black "Weis, Constantin"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1824"]
[BlackElo "1637"]
[PlyCount "93"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nf6 6. Nf3 Bf5 7. Be2 e6 8. 0-0 Be7 9. Bf4 0-0 10. Nc3 Qd7 11. Nb5 Nc6 12. Ne5 Nxe5 13. Bxe5 a6 14. Nc3 Rac8 15. Bf3 b5 16. Re1 Bb4 17. Rc1 Qe7 18. Qb3 Nd7 19. a3 Nxe5 20. dxe5 Bc5 21. Ne4 Bxe4 22. Bxe4 Qg5 23. Rcd1 Rfd8 24. Rxd8+ Rxd8 25. Qc2 h6 26. Qxc5 Qf4 27. Qe3 Qh4 28. g3 Qe7 29. Bb1 Qc7 30. Qe4 g6 31. Qe3 Kg7 32. h4 h5 33. Qe2 Qc5 34. Kh2 Rd5 35. f4 Qa7 36. Be4 Rd4 37. Rd1 Rxd1 38. Qxd1 Qf2+ 39. Bg2 Qxb2 40. Qd6 a5 41. Qe7 b4 42. axb4 axb4 43. Qf6+ Kg8 44. Qd8+ Kg7 45. Qf6+ Kg8 46. Qd8+ Kg7 47. Qf6+ 1/2-1/2

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "7"]
[White "Schulz, Gerhard1111"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1447"]
[BlackElo "1637"]
[PlyCount "29"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. c3 Bd6 6. Nbd2 0-0 7. 0-0 Qc7 8. dxc5 Bxc5 9. e4 Nc6 10. Qe2 dxe4 11. Nxe4 Nxe4 12. Qxe4 f5 13. Qh4 Be7 14. Qg3 Bd7 15. Qxc7 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "3"]
[White "Wagner, Jochen"]
[Black "Weis, Constantin"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1410"]
[BlackElo "1637"]
[PlyCount "76"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nd2 c5 5. c3 Bd6 6. Bg3 0-0 7. Bd3 Qc7 8. Qb1 Nbd7 9. Ngf3 e5 10. Nxe5 Nxe5 11. dxe5 Bxe5 12. Bh4 h6 13. Bxf6 Bxf6 14. Nf3 Bg4 15. Bh7+ Kh8 16. h3 Be6 17. g4 g6 18. Bxg6 fxg6 19. Qxg6 Qg7 20. Qd3 d4 21. exd4 Bg5 22. Nxg5 Qxg5 23. Qe3 Qxe3+ 24. fxe3 cxd4 25. exd4 Rf3 26. Ke2 Raf8 27. Rae1 Bc4+ 28. Kd2 Rf2+ 29. Kc1 Bd3 30. Re3 Bc4 31. b3 Bf7 32. Re7 Bg6 33. Rxb7 Rc2+ 34. Kd1 Rff2 35. Rb8+ Kg7 36. Rb7+ Kf6 37. Rxa7 Rb2 38. Kc1 Rb1# 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "5"]
[White "Weis, Constantin"]
[Black "Belikan, Thomas"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1637"]
[BlackElo "1411"]
[PlyCount "57"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. e5 f6 5. f4 fxe5 6. fxe5 Qh4+ 7. g3 Qxd4 8. Qh5+ g6 9. Qe2 Nxe5 10. Bg2 Bb4 11. Bd2 Nc4 12. Nf3 Qb6 13. a3 Nxd2 14. Qxd2 Bd6 15. 0-0-0 Bd7 16. Ng5 Nf6 17. Rhe1 Be7 18. Qe2 0-0-0 19. Nf7 Rhf8 20. Nxd8 Bxd8 21. Kb1 Be7 22. Ka1 Qa5 23. Nxd5 exd5 24. Qxe7 Re8 25. Qxf6 Rxe1 26. Qf8+ Re8 27. Qf7 Qb6 28. Bh3 Bxh3 29. Qxe8# 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "8"]
[White "Weis, Constantin"]
[Black "Fleischmann, Theo"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1637"]
[BlackElo "1537"]
[PlyCount "121"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Bb4 7. Bd3 d6 8. 0-0 0-0 9. Nce2 Ne5 10. c3 Bc5 11. Bc2 Nfg4 12. Bf4 b6 13. h3 Nf6 14. Bg5 Bb7 15. Kh1 h6 16. Bxf6 Qxf6 17. f4 Nc4 18. Qc1 Rac8 19. Nf3 Ne3 20. Re1 Nxc2 21. Qxc2 Bf2 22. Rf1 Be3 23. Rad1 Rfd8 24. Qa4 a5 25. Rd3 Bc6 26. Qb3 a4 27. Qd1 Bxf4 28. Nfd4 e5 29. Nf5 Bxe4 30. Rxd6 Rxd6 31. Nxd6 Rd8 32. Nxe4 Rxd1 33. Nxf6+ gxf6 34. Rxd1 Kg7 35. Nxf4 exf4 36. Rd4 Kg6 37. Rxf4 Kg5 38. Rxa4 h5 39. Rb4 Kf5 40. Rb5+ Ke4 41. Rxb6 Kd3 42. a4 Kc2 43. a5 Kd2 44. a6 f5 45. Rb5 f4 46. Rxh5 Ke3 47. Rb5 f3 48. gxf3 Kxf3 49. a7 f5 50. a8Q+ Ke2 51. Qg2+ Kd3 52. Qd5+ Kc2 53. c4 Kb1 54. Qd1+ Ka2 55. Ra5+ Kxb2 56. Qd2+ Kb3 57. c5 Kc4 58. c6 f4 59. c7 f3 60. c8Q+ Kb3 61. Qdc3# 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "9"]
[White "Weis, Constantin"]
[Black "Kruglov, Yan"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1637"]
[BlackElo "1620"]
[PlyCount "61"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. 0-0 Bd7 5. c3 a6 6. Ba4 b5 7. Bc2 Nf6 8. d4 cxd4 9. cxd4 Nb4 10. e5 Nfd5 11. Be4 dxe5 12. dxe5 Be6 13. a3 Nc6 14. Qe2 Qc7 15. Rd1 Rd8 16. Ng5 Qxe5 17. Nc3 Nd4 18. Qe1 g6 19. Be3 Nf5 20. Bb6 Rd7 21. Nf3 Bg7 22. Nxe5 Bxe5 23. Bxd5 0-0 24. Qxe5 Rxd5 25. Nxd5 Bxd5 26. Qxd5 e6 27. Qe5 Ne7 28. Bd4 f6 29. Qxe6+ Rf7 30. Bxf6 Kf8 31. Rd8# 1-0

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "4"]
[White "Weis, Constantin"]
[Black "Kuehn, Viktoria"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1637"]
[BlackElo "1822"]
[PlyCount "52"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. Nd2 e6 9. Ngf3 a6 10. 0-0 Be7 11. Ne5 Nxe5 12. dxe5 Nh5 13. h3 Nxf4 14. hxg4 Nxd3 15. c4 Nxe5 16. cxd5 Qxd5 17. Qa4+ b5 18. Qf4 Ng6 19. Qe3 0-0 20. Rfd1 Qc5 21. Qf3 Rac8 22. Ne4 Qe5 23. Rd7 Rfd8 24. Rad1 Rxd7 25. Rxd7 Rc1+ 26. Rd1 Rxd1+ 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "1"]
[White "Weis, Constantin"]
[Black "Perestjuk, Marko"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1637"]
[BlackElo "1981"]
[PlyCount "68"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. Nd2 e6 9. Ngf3 Bd6 10. Bxd6 Qxd6 11. 0-0 0-0 12. Rfe1 Rab8 13. Ne5 Bh5 14. f4 b5 15. a3 a5 16. Bxb5 Na7 17. a4 Rb6 18. Qc2 Nxb5 19. axb5 Rxb5 20. Reb1 Rfb8 21. Ndf3 Ne4 22. Qc1 f6 23. Nd3 Bg6 24. Nf2 Nxf2 25. Kxf2 Bxb1 26. Rxb1 Rb3 27. g3 Qb6 28. Nd2 Rxb2 29. Rxb2 Qxb2 30. Qxb2 Rxb2 31. Ke2 a4 32. Kd1 a3 33. Kc1 Rxd2 34. Kxd2 a2 0-1

[Event "GER-ch Net blitz qual3"]
[Site "Playchess.com INT"]
[Date "2021.05.07"]
[Round "11"]
[White "Weis, Constantin"]
[Black "Roefe, Detlef"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1637"]
[BlackElo "1794"]
[PlyCount "76"]
[EventDate "2021.05.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. e5 Nd5 5. 0-0 e6 6. c3 Be7 7. d4 cxd4 8. cxd4 0-0 9. Nc3 Nb6 10. d5 exd5 11. Nxd5 Nxd5 12. Qxd5 Nb4 13. Qe4 Qb6 14. Bd3 Nxd3 15. Qxd3 d6 16. Be3 Qd8 17. Rfd1 dxe5 18. Qc3 Qe8 19. Qxe5 Be6 20. Qa5 b6 21. Qh5 g6 22. Qh6 Bf6 23. Ng5 Bxg5 24. Bxg5 f6 25. Bd2 Qf7 26. Bc3 Rfd8 27. Qh4 g5 28. Qg3 Bxa2 29. h4 h6 30. hxg5 hxg5 31. Rxd8+ Rxd8 32. f4 Qd5 33. fxg5 Qc5+ 34. Kh1 Kf7 35. gxf6 Rh8+ 36. Qh2 Rxh2+ 37. Kxh2 Qc4 38. Re1 Qh4+ 0-1

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "4"]
[White "Engel, Frank"]
[Black "Weis, Constantin"]
[Result "1/2-1/2"]
[ECO "B96"]
[WhiteElo "1756"]
[BlackElo "1620"]
[PlyCount "69"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 9. Bxf6 gxf6 10. Qd2 Qxb2 11. Rb1 Qa3 12. Bc4 Qa5 13. 0-0 Nc6 14. Kh1 Be7 15. f5 e5 16. Nb3 Qc7 17. Nd5 Qd7 18. Nb6 Qd8 19. Nxa8 Bd7 20. Qd5 Rf8 21. Rbd1 Qxa8 22. Nc5 Qc8 23. Nxd7 Qxd7 24. Bb3 Nd4 25. Rd3 Qc6 26. Qa5 Qxe4 27. Rc3 Nc6 28. Qc7 Rg8 29. Qc8+ Bd8 30. Rg1 Rxg2 31. Rxg2 Qe1+ 32. Rg1 Qe4+ 33. Rg2 Qe1+ 34. Rg1 Qe4+ 35. Rg2 1/2-1/2

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "2"]
[White "Fenske, Klaus Dieter"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "A51"]
[WhiteElo "1771"]
[BlackElo "1620"]
[PlyCount "59"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. d5 Bc5 4. Nc3 0-0 5. h3 a6 6. e4 d6 7. Nf3 c6 8. Be2 h6 9. 0-0 Ne8 10. a3 f5 11. b4 Bb6 12. Na4 Ba7 13. Bd3 fxe4 14. Bxe4 Nf6 15. Bg6 cxd5 16. cxd5 Nbd7 17. Re1 Nb6 18. Nxb6 Bxb6 19. Be3 Bd7 20. Qd3 Bb5 21. Qd2 Rc8 22. Nh4 Bxe3 23. Rxe3 Ng4 24. Rg3 Nxf2 25. Nf5 Ne4 26. Nxh6+ Kh8 27. Bxe4 Qh4 28. Nf5 Rxf5 29. Bxf5 Qxg3 30. Bxc8 1-0

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "10"]
[White "Friemel, Reinhard"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1651"]
[BlackElo "1620"]
[PlyCount "79"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nc3 e6 4. g3 Nf6 5. Bg2 d6 6. Nge2 Be7 7. d3 0-0 8. 0-0 Ne8 9. h3 f5 10. f4 a6 11. a3 Rb8 12. Rb1 Qc7 13. b4 cxb4 14. axb4 b5 15. cxb5 axb5 16. exf5 exf5 17. Nd5 Qd8 18. Qb3 Kh8 19. Bb2 Bb7 20. Ra1 Nf6 21. Nxe7 Nxe7 22. Bxb7 Rxb7 23. Nd4 Qb6 24. Kh2 Nc6 25. Ne6 Re8 26. Bxf6 Rxe6 27. Qxe6 gxf6 28. Qxf6+ Kg8 29. Ra8+ Rb8 30. Rxb8+ Nxb8 31. Qe6+ Kg7 32. Kg2 Qc6+ 33. Kg1 Qb6+ 34. Rf2 Qa7 35. Qxf5 Qa1+ 36. Kg2 Qd4 37. Qe4 Qc3 38. Qb7+ Nd7 39. Qxd7+ Kg6 40. Qxd6+ 1-0

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "6"]
[White "Heiligtag, Matthias"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1730"]
[BlackElo "1620"]
[PlyCount "51"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. h3 Be6 9. Na4 Nbd7 10. Ng5 0-0 11. Nxe6 fxe6 12. Bc4 Kf7 13. g4 b5 14. g5 bxc4 15. gxf6 Nxf6 16. Nb6 Rb8 17. Nxc4 Nxe4 18. Qf3+ Nf6 19. 0-0-0 d5 20. Nxe5+ Kg8 21. Nc6 Qc7 22. Nxb8 Rxb8 23. Rhe1 Qb7 24. Bd4 Ne4 25. Qg4 Qc6 26. Qxg7# 1-0

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "7"]
[White "Tietz, Bennit"]
[Black "Weis, Constantin"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1647"]
[BlackElo "1620"]
[PlyCount "50"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. f4 e6 4. Nf3 Nf6 5. Be2 Be7 6. 0-0 0-0 7. Kh1 Ne8 8. e5 d6 9. d4 cxd4 10. Nxd4 Qc7 11. Nxc6 bxc6 12. exd6 Bxd6 13. Bd3 Nf6 14. Nc3 Rb8 15. Qf3 c5 16. Nb5 Qd7 17. Nxd6 Qxd6 18. Qh3 Bb7 19. f5 e5 20. Qg3 Bc6 21. Bh6 Nh5 22. Qg4 Qxh6 23. f6 Nxf6 24. Qf5 Qg6 25. Qxe5 Qxg2# 0-1

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "5"]
[White "Weis, Constantin"]
[Black "Moewisch, Dave"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1620"]
[BlackElo "1833"]
[PlyCount "66"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 e5 8. dxe5 Nh5 9. Be3 Nxe5 10. Bb5+ Bd7 11. Qxd5 Qc7 12. f4 Ng4 13. Qxh5 Nxe3 14. Qe2 0-0-0 15. Bxd7+ Qxd7 16. Nd2 Nc2+ 17. Kd1 Nxa1 18. Ngf3 f6 19. Kc1 Bd6 20. g3 Rhe8 21. Qc4+ Kb8 22. Kb1 Qc6 23. Qf1 Bc5 24. Kxa1 Be3 25. Nb3 Rd7 26. Nfd4 Bxd4 27. Nxd4 Qb6 28. Qc1 Rde7 29. Rd1 a6 30. Nf5 Re2 31. Nd4 Rxh2 32. Re1 Rxe1 33. Qxe1 Qxb2# 0-1

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "9"]
[White "Weis, Constantin"]
[Black "Polaski, Frank"]
[Result "1-0"]
[ECO "C71"]
[WhiteElo "1620"]
[BlackElo "1436"]
[PlyCount "69"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 a6 5. Bc4 b5 6. Bb3 Bg4 7. Bxf7+ Kxf7 8. Ng5+ Ke8 9. Qxg4 Nxd4 10. Qd1 Be7 11. Nf3 Ne6 12. 0-0 h6 13. Nc3 c6 14. Be3 Nf6 15. a3 Rc8 16. Qe2 Nd7 17. Rad1 Ndc5 18. b4 Nd7 19. Rd2 Qc7 20. Rfd1 Rf8 21. Ne1 Nb6 22. Qh5+ Kd8 23. Qg6 Rf6 24. Qg4 Nc4 25. Re2 Kd7 26. Nf3 Rd8 27. Nh4 Kc8 28. Nf5 Bf8 29. Qh4 Be7 30. Qh3 Kb7 31. f3 Nxe3 32. Rxe3 Ng5 33. Qg3 Qc8 34. Nxg7 Ne6 35. Nf5 1-0

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "8"]
[White "Weis, Constantin"]
[Black "Rolf, Marco"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "1620"]
[BlackElo "1963"]
[PlyCount "106"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 Qb6 9. Na4 Qb4 10. Qxb4 Nxb4 11. 0-0-0 Nxa2+ 12. Kb1 Nb4 13. dxc5 Be7 14. c4 0-0 15. cxd5 Nxd5 16. Bd4 Nxf4 17. g3 Nd5 18. Bg2 Rb8 19. Rd2 b5 20. cxb6 N7xb6 21. Nxb6 Nxb6 22. Rc2 a5 23. Rc7 Nd5 24. Rc4 Bd7 25. Nd2 Rfc8 26. Rhc1 h5 27. Ne4 Rxc4 28. Rxc4 Rb4 29. Rxb4 Nxb4 30. Nc5 Bb5 31. Nb7 a4 32. Nd6 Bd3+ 33. Kc1 Nd5 34. Kd2 Bg6 35. h4 f6 36. Ne4 Bb4+ 37. Kd1 f5 38. Ng5 Bf7 39. Bf3 g6 40. Kc2 f4 41. gxf4 Nxf4 42. Bb6 Kf8 43. Bc6 Ke7 44. Bxa4 Be1 45. Be3 Ng2 46. Bc5+ Kd8 47. Nxf7+ Kc7 48. Bd6+ Kc8 49. Bb3 Nf4 50. Nh8 Bxh4 51. Kd2 g5 52. Bb4 g4 53. Nf7 g3 0-1

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "3"]
[White "Weis, Constantin"]
[Black "Stein, Eugen"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "1620"]
[BlackElo "1245"]
[PlyCount "29"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Nc3 Nf6 7. Bc4 Be7 8. 0-0 0-0 9. f4 Be6 10. Bd3 h6 11. f5 Bd7 12. Qe3 Bc6 13. Qg3 b6 14. Bxh6 Nh5 15. Qg4 1-0

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "1"]
[White "Weis, Constantin"]
[Black "Wulff, Joerg"]
[Result "0-1"]
[ECO "B05"]
[WhiteElo "1620"]
[BlackElo "1947"]
[PlyCount "60"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. exd6 cxd6 7. h3 Bxf3 8. Qxf3 Nc6 9. Be3 g6 10. Nc3 Bg7 11. Rd1 0-0 12. a3 e5 13. d5 Ne7 14. Be2 Rc8 15. b3 Nf5 16. 0-0 Nh4 17. Qg3 Nf5 18. Qf3 Re8 19. Ne4 Nxe3 20. Qxe3 h6 21. f4 f5 22. Ng3 exf4 23. Qxf4 Qe7 24. Rfe1 Qe3+ 25. Qxe3 Rxe3 26. Kf2 Rxb3 27. Bf1 Kf7 28. Re6 Nxc4 29. Bxc4 Rxc4 30. Rxd6 Be5 0-1

[Event "GER-ch Net blitz qual2"]
[Site "Playchess.com INT"]
[Date "2021.05.04"]
[Round "11"]
[White "Weis, Constantin"]
[Black "Zinke, Thomas"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1620"]
[BlackElo "1703"]
[PlyCount "38"]
[EventDate "2021.05.04"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "GER"]
[SourceTitle "CBM 202 Extra"]
[Source "ChessBase"]
[SourceDate "2021.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. exd5 Nxd5 11. Nxd5 Qxd5 12. Nxc6 Qxa2 13. Nxe7+ Kh8 14. Qb4 Qa1+ 15. Kd2 Rd8+ 16. Bd3 Qa6 17. Ke2 Qe6 18. Bc4 Rxd1 19. Rxd1 Qf5 1-0

[Event "DSOL 04 Liga Gr-A 1st"]
[Site "Playchess.com INT"]
[Date "2020.08.03"]
[Round "7.4"]
[White "Weis, Constantin"]
[Black "Herzog, Stefan"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1594"]
[BlackElo "1537"]
[PlyCount "45"]
[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 "Falkensee Caissa"]
[BlackTeam "Eisenberg"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 5. Nb5 Qb6 6. Qd2 Nf6 7. N1c3 a6 8. Na4 Qc6 9. Nxc5 axb5 10. Qe3 0-0 11. Bd3 d5 12. e5 Nfd7 13. Nb3 b6 14. 0-0 Nc5 15. Nxc5 bxc5 16. Qh3 g6 17. Bg5 Nd7 18. Qh6 f5 19. exf6 Nxf6 20. Bxg6 Ra7 21. Bxf6 e5 22. Bxh7+ Rxh7 23. Qg6+ 1-0

[Event "DSOL 04 Liga Gr-A 1st"]
[Site "Playchess.com INT"]
[Date "2020.07.27"]
[Round "6.4"]
[White "Meissner, Werner"]
[Black "Weis, Constantin"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1694"]
[BlackElo "1594"]
[PlyCount "72"]
[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 "Dresden TuR"]
[BlackTeam "Falkensee Caissa"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. c3 e6 3. d4 cxd4 4. cxd4 d5 5. e5 Nc6 6. Nf3 Nge7 7. Na3 Nf5 8. Nc2 Qb6 9. Be2 Bd7 10. 0-0 Be7 11. b3 0-0 12. Bb2 Rac8 13. Rc1 a5 14. Ne3 Nh4 15. Nxh4 Bxh4 16. g3 Be7 17. Kh1 f6 18. Bf3 fxe5 19. dxe5 Bg5 20. Nxd5 exd5 21. Bxd5+ Kh8 22. f4 Be7 23. Qh5 Nb4 24. Rxc8 Rxc8 25. Be4 h6 26. f5 Bc6 27. Qf3 Bxe4 28. Qxe4 Qc6 29. Qxc6 Rxc6 30. f6 gxf6 31. exf6 Bf8 32. Re1 Kg8 33. Re2 Rc2 34. Rxc2 Nxc2 35. Kg1 Ne3 36. Kf2 Nd1+ 0-1

[Event "DSOL 04 Liga Gr-A 1st"]
[Site "Playchess.com INT"]
[Date "2020.07.10"]
[Round "3.4"]
[White "Weis, Constantin"]
[Black "Malditz, Dieter"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1594"]
[BlackElo "1777"]
[PlyCount "63"]
[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 "Falkensee Caissa"]
[BlackTeam "Ludwigshafen II"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. Bf4 Nc6 6. c3 Bg4 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 e6 10. Nf3 Be7 11. 0-0 0-0 12. Nbd2 Rc8 13. Ne5 Bd6 14. Nxf7 Rxf7 15. Bxd6 Nc6 16. Nf3 Be8 17. Be5 Nb4 18. Qd2 Nxd3 19. Qxd3 Ne4 20. Nd2 Nd6 21. Rfe1 Bb5 22. Qg3 Nf5 23. Qg4 Qb6 24. Nf3 Nh6 25. Qg3 Nf5 26. Qg4 Nh6 27. Qh3 Bd3 28. Bxg7 Bf5 29. Qxh6 Rxg7 30. Nh4 Qxb2 31. Nxf5 exf5 32. Qe6+ 1-0

[Event "Berlin Spandau op"]
[Site "Berlin"]
[Date "2019.12.28"]
[Round "3"]
[White "Miettinen, Teemu"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "2005"]
[BlackElo "1756"]
[PlyCount "63"]
[EventDate "2019.12.27"]
[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. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Be2 0-0 7. 0-0 Re8 8. Nc3 Ngxe5 9. Nxe5 Nxe5 10. Na4 Be7 11. b3 Bf6 12. Bb2 d6 13. Qd2 Bf5 14. f3 Nc6 15. e4 Bxb2 16. Qxb2 Qe7 17. Rae1 Bg6 18. Bd3 Qd7 19. Nc3 f5 20. exf5 Bxf5 21. Qb1 Bxd3 22. Qxd3 Rxe1 23. Rxe1 Re8 24. Qd5+ Kf8 25. Rxe8+ Qxe8 26. Qf5+ Kg8 27. Kf2 Kh8 28. Ne4 Nd4 29. Qd5 Nc6 30. Ng5 Qe7 31. Nf7+ Kg8 32. Nh6+ 1-0

[Event "Berlin Spandau op"]
[Site "Berlin"]
[Date "2019.12.27"]
[Round "1"]
[White "Guennigmann, Manuel"]
[Black "Weis, Constantin"]
[Result "1-0"]
[ECO "C91"]
[WhiteElo "2164"]
[BlackElo "1756"]
[PlyCount "55"]
[EventDate "2019.12.27"]
[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. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. d4 d6 9. c3 Bg4 10. d5 Na5 11. Bc2 Nb7 12. Nbd2 Qd7 13. h3 Bxf3 14. Qxf3 c6 15. dxc6 Qxc6 16. Nf1 b4 17. Bd2 Rfc8 18. Ne3 bxc3 19. Bxc3 a5 20. Nf5 Bf8 21. Nh6+ gxh6 22. Qxf6 Bg7 23. Qf5 Nc5 24. Re3 Ne6 25. Bb3 Qe8 26. Rg3 Nf4 27. Rxg7+ Kxg7 28. Qxf4 1-0

[Event "JBLN Ost 1819"]
[Site "Germany"]
[Date "2019.03.03"]
[Round "9.6"]
[White "Weis, Constantin"]
[Black "Franz, Theodor Franz"]
[Result "1/2-1/2"]
[ECO "C99"]
[BlackElo "1499"]
[PlyCount "110"]
[EventDate "2018.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Falkensee Caissa"]
[BlackTeam "Berlin Mattnetz"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 cxd4 12. cxd4 Qc7 13. Nbd2 Bb7 14. Nf1 Rac8 15. Bd3 Nc6 16. d5 Nb4 17. Ng3 Nxd3 18. Qxd3 Rfe8 19. Be3 Qc2 20. Qxc2 Rxc2 21. Rab1 Nd7 22. Rec1 Rec8 23. Nf5 Bf8 24. Rxc2 Rxc2 25. Ne1 Rc4 26. f3 g6 27. Ng3 Be7 28. Nd3 Bd8 29. Rc1 Rxc1+ 30. Bxc1 Bb6+ 31. Kf1 a5 32. Ke2 b4 33. Be3 Bxe3 34. Kxe3 Ba6 35. Nh1 Nb6 36. b3 Na8 37. Nhf2 Nc7 38. f4 exf4+ 39. Nxf4 Nb5 40. N2d3 Nc3 41. Nc1 Bc8 42. Kd4 Kf8 43. e5 Ke7 44. Nfe2 Bb7 45. exd6+ Kxd6 46. Nxc3 bxc3 47. Kxc3 Bxd5 48. g3 g5 49. Kd4 f5 50. Nd3 Bg2 51. h4 h6 52. hxg5 hxg5 53. b4 axb4 54. Nxb4 f4 55. gxf4 gxf4 1/2-1/2

[Event "JBLN Ost 1819"]
[Site "Germany"]
[Date "2019.03.02"]
[Round "8.6"]
[White "Freude, Max"]
[Black "Weis, Constantin"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1619"]
[PlyCount "49"]
[EventDate "2018.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Berlin Empor"]
[BlackTeam "Falkensee Caissa"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 e6 5. Bf4 Nf6 6. c3 Bd6 7. Bxd6 Qxd6 8. Nf3 Nc6 9. 0-0 0-0 10. Qe2 Re8 11. Ne5 Nd7 12. Bxh7+ Kf8 13. Nxd7+ Bxd7 14. Qf3 e5 15. Bf5 exd4 16. Bxd7 Qxd7 17. Nd2 dxc3 18. bxc3 Rac8 19. Rfe1 d4 20. Qh5 Kg8 21. cxd4 Nxd4 22. Nb3 Nxb3 23. axb3 Rxe1+ 24. Rxe1 Rc2 25. Qe5 1/2-1/2

[Event "JBLN Ost 1819"]
[Site "Germany"]
[Date "2018.11.03"]
[Round "3.6"]
[White "Weis, Constantin"]
[Black "Bartels, Sebastian"]
[Result "1/2-1/2"]
[ECO "B82"]
[PlyCount "75"]
[EventDate "2018.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Falkensee Caissa"]
[BlackTeam "Magdeburg Aufbau Elbe"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 b5 7. a3 e6 8. f4 Bb7 9. Bd3 Be7 10. Qe2 Nbd7 11. Nb3 Nc5 12. Nxc5 dxc5 13. Bxb5+ axb5 14. Qxb5+ Qd7 15. Qxd7+ Nxd7 16. 0-0-0 Nf6 17. h3 Nxe4 18. Nxe4 Bxe4 19. Rhg1 0-0 20. Rd7 Rfe8 21. g3 Rad8 22. Rc7 Bd6 23. Ra7 Bf3 24. h4 e5 25. Rf1 e4 26. a4 Ra8 27. Rxa8 Rxa8 28. b3 c4 29. Kb2 Bb4 30. Bd4 Re8 31. c3 Bf8 32. b4 e3 33. Rxf3 e2 34. Bf2 Bd6 35. Be1 f6 36. Rf2 g5 37. hxg5 fxg5 38. a5 1/2-1/2

[Event "JBLN Ost 1819"]
[Site "Germany"]
[Date "2018.09.29"]
[Round "1.5"]
[White "Weis, Constantin"]
[Black "Seidel, Arne Christian"]
[Result "0-1"]
[ECO "A01"]
[BlackElo "1636"]
[PlyCount "60"]
[EventDate "2018.09.29"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "CBM 189 Extra"]
[Source "ChessBase"]
[SourceDate "2019.06.03"]
[SourceVersion "1"]
[SourceVersionDate "2019.06.03"]
[SourceQuality "1"]
[WhiteTeam "Falkensee Caissa"]
[BlackTeam "Reideburg 90 Halle"]
[WhiteTeamCountry "GER"]
[BlackTeamCountry "GER"]

1. b3 e5 2. Bb2 d6 3. e3 f5 4. Ne2 Nf6 5. c4 Nc6 6. Nbc3 Be7 7. d4 e4 8. d5 Ne5 9. Ng3 h5 10. h4 Nfg4 11. Qc2 Bxh4 12. 0-0-0 Bxg3 13. fxg3 Nxe3 14. Qd2 Nxd1 15. Qxd1 Qg5+ 16. Kb1 g6 17. Be2 Qxg3 18. Rg1 Bd7 19. Qe1 Qxe1+ 20. Rxe1 0-0-0 21. Bc1 Rde8 22. Be3 Nd3 23. Bxd3 exd3 24. Bd2 Rxe1+ 25. Bxe1 f4 26. Bd2 g5 27. Ne4 Rg8 28. Nf6 Rf8 29. Nxh5 Rf7 30. Kb2 Bg4 0-1

