[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.07"]
[Round "8"]
[White "Stepinski, Piotr"]
[Black "Duda, Leon"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2146"]
[BlackElo "1967"]
[PlyCount "119"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 g6 5. h3 Bg7 6. Nf3 Nf6 7. Be3 0-0 8. Qd2 a6 9. a4 b6 10. Be2 Bb7 11. 0-0 Nbd7 12. Rad1 Ne4 13. Nxe4 Bxe4 14. c3 Bb7 15. Bh6 Rc8 16. Bxg7 Kxg7 17. Qf4 e6 18. Ne5 Nf6 19. h4 h5 20. Rd3 Qe7 21. Rfd1 Rcd8 22. Rg3 Nd5 23. Qg5 Qxg5 24. hxg5 c5 25. Bf3 Ba8 26. dxc5 bxc5 27. Bxd5 exd5 28. b4 cxb4 29. cxb4 Rfe8 30. f4 Rc8 31. Rgd3 Rc2 32. R1d2 Rc1+ 33. Rd1 Rc2 34. R3d2 Rec8 35. g3 Rxd2 36. Rxd2 Rc3 37. Rd3 Rc1+ 38. Kf2 Ra1 39. Rc3 d4 40. Rd3 Ra2+ 41. Ke1 Ra1+ 42. Kd2 Rxa4 43. Rxd4 a5 44. Rd7 Rxb4 45. Rxf7+ Kg8 46. Ra7 Be4 47. Rxa5 Bf5 48. Ra8+ Kg7 49. Ra7+ Kg8 50. Nf7 Rb2+ 51. Kc3 Rg2 52. Nh6+ Kh8 53. Nxf5 gxf5 54. Kd4 Re2 55. Ra6 Kg7 56. Rh6 Re4+ 57. Kd5 Re3 58. Rxh5 Ra3 59. Rh6 Ra5+ 60. Ke6 1-0

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.06"]
[Round "7"]
[White "Duda, Leon"]
[Black "Koszalka, Filip"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1967"]
[BlackElo "1789"]
[PlyCount "131"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 Nc6 5. Bg2 dxe4 6. dxe4 e5 7. c3 a5 8. Qc2 Bc5 9. Ngf3 0-0 10. 0-0 Qe7 11. Nc4 Rd8 12. Bg5 h6 13. Bxf6 Qxf6 14. Qe2 b6 15. Rfd1 Ba6 16. Rd5 Bd6 17. b3 Ne7 18. Rdd1 Qe6 19. Bf1 Bxc4 20. Qxc4 Qxc4 21. Bxc4 g6 22. a4 Kg7 23. Re1 f6 24. Rad1 Bc5 25. Kf1 Rd6 26. Rxd6 Bxd6 27. Nh4 Rd8 28. Rd1 Rf8 29. Ke2 Rb8 30. Ng2 Rf8 31. f4 Rb8 32. Rd3 Rf8 33. fxe5 fxe5 34. Ne3 Kf6 35. Bb5 Rh8 36. Nc4 Nc8 37. Rf3+ Ke7 38. Ne3 Kd8 39. Rf7 Ne7 40. Nc4 Rg8 41. Rf6 Nc8 42. Re6 Rf8 43. Rxg6 Bc5 44. Nxe5 Rf2+ 45. Ke1 Ne7 46. Rxh6 Rf8 47. Rh8 Rxh8 48. Nf7+ Kc8 49. Nxh8 Bg1 50. Nf7 c6 51. Bc4 Ng6 52. h4 Be3 53. Ke2 Bc1 54. Kf3 Bd2 55. Be6+ Kc7 56. c4 Nf8 57. Bf5 Nd7 58. Bxd7 Kxd7 59. Ne5+ Kd6 60. Nd3 Ke6 61. Kg4 Kf6 62. Kh5 Bc3 63. g4 Kg7 64. g5 Bd2 65. Kg4 Bc3 66. Kf5 1-0

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.05"]
[Round "6"]
[White "Jablonski, Piotr"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "B75"]
[WhiteElo "1793"]
[BlackElo "1967"]
[PlyCount "48"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 a6 8. Qd2 h5 9. 0-0-0 b5 10. h3 h4 11. f4 b4 12. Nd5 Nxe4 13. Qxb4 Ng3 14. f5 Nxh1 15. Bg5 f6 16. Re1 fxg5 17. Rxe7+ Qxe7 18. Nxe7 Kxe7 19. Qe1+ Be5 20. Qe4 Ra7 21. fxg6 Ng3 22. Qe3 Kf6 23. Kb1 Nxf1 24. Qf3+ Kg7 0-1

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.04"]
[Round "5"]
[White "Duda, Leon"]
[Black "Darowicki, Mariusz"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "1967"]
[BlackElo "2019"]
[PlyCount "118"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 Nd7 8. Qc2 Nf8 9. Ne2 Qc7 10. Bd2 Be6 11. Ng3 Ng6 12. Ne4 Bf4 13. Nc5 Bd5 14. 0-0-0 0-0 15. Bxg6 hxg6 16. f3 b6 17. Nd3 Bxd2+ 18. Rxd2 Rfe8 19. h4 a5 20. Kb1 Be6 21. g4 Bd5 22. Rh3 Re3 23. Rf2 Bc4 24. Nc1 Rae8 25. b3 Ba6 26. Kb2 Qf4 27. g5 Bc8 28. Rhh2 Bf5 29. Qd1 Re1 30. Qd2 Qxd2+ 31. Rxd2 Rf1 32. Rhe2 Kf8 33. c4 Rxf3 34. Rxe8+ Kxe8 35. Ne2 Rh3 36. Nc3 Rxh4 37. gxf6 gxf6 38. d5 Kd7 39. dxc6+ Kxc6 40. Nb5 Be6 41. Rd6+ Kb7 42. Rd8 Rh2+ 43. Ka3 f5 44. Re8 Rd2 45. Re7+ Rd7 46. Rxd7+ Bxd7 47. Nd6+ Kc7 48. Nxf7 f4 49. Ng5 Kd6 50. Kb2 Bc6 51. Kc3 Ke5 52. Kd3 Kf5 53. Nf7 Be4+ 54. Kd4 Bb1 55. a3 g5 56. b4 axb4 57. axb4 g4 58. Nd6+ Ke6 59. c5 g3 0-1

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.03"]
[Round "4"]
[White "Duda, Leon"]
[Black "Zeissel, Andrzej"]
[Result "1/2-1/2"]
[ECO "B43"]
[WhiteElo "1967"]
[BlackElo "2038"]
[PlyCount "127"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Bd3 Nf6 7. 0-0 Nc6 8. Nxc6 dxc6 9. f4 e5 10. f5 b5 11. a4 Bb7 12. Qf3 Be7 13. Be3 h5 14. Kh1 h4 15. Rfd1 Rd8 16. Qh3 b4 17. Nb1 Nxe4 18. Nd2 Nf6 19. Ne4 c5 20. Nxf6+ Bxf6 21. Bc4 Ke7 22. Bf2 Qc6 23. Rxd8 Rxd8 24. Bxh4 Rd2 25. Bf1 Qe4 26. Be1 Rxc2 27. Rd1 Rxb2 28. Qh8 Bd5 29. Qc8 Rc2 30. Qxa6 Rxg2 31. Qa7+ Kf8 32. Qb8+ Ke7 33. Qc7+ Kf8 34. Qxc5+ Kg8 35. Qxd5 Qxd5 36. Rxd5 Ra2 37. Bxb4 Rxa4 38. Bd2 Ra1 39. Kg2 e4 40. Be3 Re1 41. Bf2 Rc1 42. Rb5 Rc2 43. Kg1 Bg5 44. Re5 Bf4 45. Re8+ Kh7 46. h3 Bh2+ 47. Kg2 Bd6 48. Rxe4 Bc5 49. Rh4+ Kg8 50. Rf4 Kf8 51. Bd3 Rxf2+ 52. Rxf2 Bxf2 53. Kxf2 Ke7 54. h4 g6 55. h5 gxf5 56. Bxf5 Kf8 57. h6 Kg8 58. Kf3 f6 59. Ke4 Kh8 60. Kd5 Kg8 61. Ke6 Kh8 62. Ke7 Kg8 63. Ke8 Kh8 64. Kf7 1/2-1/2

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.02"]
[Round "3"]
[White "Obrycki, Aleksander"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "1769"]
[BlackElo "1967"]
[PlyCount "96"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qe7 8. Qxe7+ Ngxe7 9. Nc3 Nb4 10. Kd1 d6 11. a3 Nbc6 12. Be3 Be6 13. Ke1 0-0 14. Rd1 Rad8 15. Nd5 Bxd5 16. exd5 Nb8 17. c4 Nd7 18. Bd3 f5 19. f3 Rb8 20. Ba7 Rbc8 21. Be3 e4 22. fxe4 fxe4 23. Be2 Ne5 24. b3 Nf5 25. Bd4 Nd3+ 26. Bxd3 Nxd4 27. Bxe4 Nxb3 28. Bd3 Rce8+ 29. Be2 Rf4 30. Rf1 Rxc4 31. Kf2 Rc2 32. Rfe1 Nc5 33. Kf1 Ra2 34. Bg4 Rf8+ 35. Kg1 Rxa3 36. Re7 a5 37. Be6+ Kh8 38. Rf1 Rxf1+ 39. Kxf1 g6 40. Re8+ Kg7 41. Rd8 Kf6 42. Rxd6 Ke7 43. Rb6 Rb3 44. Rxb3 Nxb3 45. Bg8 a4 46. Ke1 Kd6 47. Kd1 a3 48. Kc2 a2 0-1

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.07.01"]
[Round "2"]
[White "Duda, Leon"]
[Black "Gasiorek, Dariusz"]
[Result "1-0"]
[ECO "B46"]
[WhiteElo "1967"]
[BlackElo "1845"]
[PlyCount "75"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. a3 Nf6 6. Nc3 Nc6 7. Be3 Be7 8. g4 d5 9. Bg2 0-0 10. h3 dxe4 11. Nxc6 bxc6 12. Nxe4 Nd5 13. Bd2 f5 14. gxf5 exf5 15. Nc3 Rb8 16. Nxd5 cxd5 17. Bc3 Be6 18. Qe2 Qb6 19. 0-0 Bf6 20. Bxf6 Rxf6 21. b3 f4 22. Qf3 Qc5 23. Rfe1 Qxc2 24. Rac1 Qxb3 25. Qxb3 Rxb3 26. Rc6 f3 27. Bf1 Bd7 28. Rc7 Re6 29. Rd1 Bc6 30. Bxa6 Rxa3 31. Bc8 Rg6+ 32. Kh1 Ra2 33. Re1 Re2 34. Rb1 Rxf2 35. Bd7 Rf6 36. Bxc6 d4 37. Rb8+ Rf8 38. Bd5+ 1-0

[Event "Lazy Baltic Pearl op-A 21st"]
[Site "Lazy"]
[Date "2025.06.30"]
[Round "9"]
[White "Duda, Leon"]
[Black "Bochniak, Franciszek"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "1967"]
[BlackElo "2042"]
[PlyCount "30"]
[EventDate "2025.06.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB28_2025"]
[SourceDate "2025.07.09"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.09"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Qf3 Bg6 6. c3 Nd7 7. Ne2 Ngf6 8. N2g3 e6 9. h4 h5 10. Bd3 Nxe4 11. Bxe4 Bxe4 12. Nxe4 Nf6 13. Bg5 Be7 14. Bxf6 gxf6 15. 0-0-0 f5 1/2-1/2

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.22"]
[Round "9.50"]
[White "Seemann, Adam"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B75"]
[WhiteElo "1801"]
[BlackElo "1909"]
[PlyCount "78"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Rybnik MKSz"]
[BlackTeam "Gliwice Politechnika Slaska"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 a6 8. Qd2 h5 9. Be2 Nbd7 10. 0-0-0 b5 11. Rhe1 Bb7 12. Kb1 Rc8 13. Bg5 Ne5 14. Nd5 e6 15. Nxf6+ Bxf6 16. Bxf6 Qxf6 17. Nb3 Rd8 18. Na5 Ba8 19. Qb4 Qe7 20. Rd2 d5 21. Qxe7+ Kxe7 22. exd5 Bxd5 23. Red1 Rc8 24. Nb3 Bxb3 25. axb3 Rc6 26. h3 g5 27. Rd4 Ng6 28. Rd7+ Kf6 29. Ra7 Nf4 30. Bf1 h4 31. Rdd7 Rf8 32. c4 bxc4 33. bxc4 Ng6 34. Rac7 Ne5 35. Rxc6 Nxc6 36. Rc7 Nb4 37. Rb7 a5 38. Ra7 Rd8 39. Kc1 Nc6 1/2-1/2

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.21"]
[Round "8.26"]
[White "Duda, Leon"]
[Black "Klim, Juliusz"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "1909"]
[BlackElo "1991"]
[PlyCount "84"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Gliwice Politechnika Slaska"]
[BlackTeam "Polonia Warszawa II"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 Nc6 7. Bg2 Nxd4 8. Qxd4 e5 9. Qd3 Be7 10. 0-0 Be6 11. Rd1 Rc8 12. Bg5 0-0 13. Bxf6 Bxf6 14. Qxd6 Qxd6 15. Rxd6 Rfd8 16. Rxd8+ Bxd8 17. Rc1 Ba5 18. Nd5 Bd2 19. Ne7+ Kf8 20. Nxc8 Bxc1 21. Nd6 Bxb2 22. Nxb7 Bxa2 23. Bf1 Bb1 24. Bxa6 Bxc2 25. Nc5 Bd4 26. Bd3 Bd1 27. Na6 Bf3 28. Nc7 Ke7 29. Nd5+ Kd6 30. Ne3 Bxe3 31. fxe3 Kc5 32. Kf2 Bd1 33. Ke1 Bf3 34. Kf2 Bg4 35. Ke1 Kb4 36. Kd2 g6 37. Bb1 h6 38. Bd3 f5 39. exf5 gxf5 40. Ba6 Kc5 41. Bc8 h5 42. Bb7 Bh3 1/2-1/2

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.20"]
[Round "7.38"]
[White "Haladaj, Adam"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2013"]
[BlackElo "1909"]
[PlyCount "68"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Bełchatow Jedynka"]
[BlackTeam "Gliwice Politechnika Slaska"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qa5+ 9. c3 Ba6 10. Bd3 Bxd3 11. Qxd3 f5 12. exf6 Nxf6 13. Nd6+ Bxd6 14. Qxd6 Qb5 15. b3 Qd5 16. Qxd5 Nxd5 17. Bd2 Rf8 18. g3 a5 19. c4 Nb4 20. Ke2 Nc2 21. Rac1 Nd4+ 22. Ke3 c5 23. f4 Nf5+ 24. Kd3 Kf7 25. g4 Ne7 26. h4 Nc6 27. a3 Rfb8 28. Rb1 Nd4 29. Kc3 Ne2+ 30. Kd3 Nd4 31. Kc3 Ne2+ 32. Kd3 Nd4 33. Kc3 Ne2+ 34. Kd3 Nd4 1/2-1/2

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.19"]
[Round "6.44"]
[White "Duda, Leon"]
[Black "Modzelewski, Filip"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1909"]
[BlackElo "1921"]
[PlyCount "169"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Gliwice Politechnika Slaska"]
[BlackTeam "Katowice Palac Mlodziezy"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 h5 6. Be2 e5 7. Ndb5 d6 8. Nd5 Nxd5 9. exd5 Ne7 10. c4 Nf5 11. Bxh5 a6 12. Nc3 Qh4 13. Be2 Nd4 14. Be3 Bf5 15. Bd3 Bg4 16. Ne2 Be7 17. Bxd4 exd4 18. Qa4+ Bd7 19. Qb4 Rb8 20. Qb6 Bg4 21. Ng3 Qf6 22. h3 Bd7 23. Kf1 Kf8 24. Re1 Bd8 25. Qb4 b5 26. Ne4 Qh6 27. c5 Bf5 28. Qxd4 dxc5 29. Nxc5 Bf6 30. Qb4 a5 31. Nd7+ Kg8 32. Nxf6+ Qxf6 33. Qb3 Bxd3+ 34. Qxd3 Qxb2 35. d6 g6 36. Qd5 Kg7 37. g3 Rbc8 38. Kg2 Rc2 39. Rhf1 Rd2 40. Qc5 Rd8 41. Rb1 Qxa2 42. Qe5+ Kh7 43. Rxb5 R8xd6 44. Rxa5 Qe6 45. Qxe6 Rxe6 46. g4 Ree2 47. Ra3 Kg7 48. Rf3 Rc2 49. Ra1 Ra2 50. Rh1 g5 51. Kg3 Ra6 52. Rf5 Ra3+ 53. Kg2 Kg6 54. Rb1 Ra6 55. Rb8 f6 56. Rb7 Rae6 57. Rc5 Re7 58. Rbb5 R7e6 59. Kg3 Re1 60. Rf5 Re7 61. Rb3 R7e5 62. Rff3 Rg1+ 63. Kh2 Ree1 64. Rg3 Rh1+ 65. Kg2 Rhg1+ 66. Kf3 Rxg3+ 67. fxg3 Rh1 68. Kg2 Ra1 69. h4 gxh4 70. gxh4 Ra4 71. Kg3 Ra1 72. Rf3 Rg1+ 73. Kf4 Ra1 74. h5+ Kf7 75. Rb3 Ra4+ 76. Kg3 Ra7 77. Rb4 Kg7 78. Kf4 Rc7 79. Rb5 Rd7 80. Kf5 Ra7 81. Rd5 Rb7 82. Ke6 Rb4 83. Rd7+ Kh6 84. Kf5 Rf4+ 85. Kxf4 1-0

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.18"]
[Round "5.32"]
[White "Duda, Leon"]
[Black "Fojcik, Kacper"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1909"]
[BlackElo "1752"]
[PlyCount "49"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Gliwice Politechnika Slaska"]
[BlackTeam "Wodzisław Slaski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Be2 Ne4 8. cxd4 Bb6 9. 0-0 0-0 10. Nc3 f6 11. Qb3 Nxc3 12. bxc3 fxe5 13. Nxe5 Nxe5 14. dxe5 Be6 15. c4 Qh4 16. cxd5 Rxf2 17. Be3 Rxe2 18. Bxb6 axb6 19. dxe6 Qd4+ 20. Kh1 Qxe5 21. e7+ Qe6 22. Rad1 Qxb3 23. Rd8+ Rxd8 24. exd8Q+ Re8 25. Qxe8# 1-0

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.17"]
[Round "4.50"]
[White "Niesporek, Franciszek"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "1943"]
[BlackElo "1909"]
[PlyCount "146"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Ognisko Rydultowy"]
[BlackTeam "Gliwice Politechnika Slaska"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qe7 8. Qd1 d6 9. Nc3 Nf6 10. Bg5 Be6 11. Nd5 Bxd5 12. exd5 Nb8 13. Be2 Nbd7 14. 0-0 0-0 15. c4 a5 16. b3 h6 17. Be3 Nh7 18. f3 f5 19. Rc1 b6 20. a3 Nhf6 21. b4 axb4 22. axb4 f4 23. Bf2 e4 24. fxe4 Nxe4 25. Bd4 Ra3 26. Bg4 Ne5 27. Be6+ Kh8 28. Qh5 Ng5 29. c5 bxc5 30. bxc5 Ra5 31. Rcd1 Kh7 32. Rfe1 f3 33. cxd6 f2+ 34. Bxf2 Qxd6 35. Bg3 Qb6+ 36. Kh1 Ng6 37. Qe2 Re8 38. Qc4 Nxe6 39. Rxe6 Rxe6 40. dxe6 Ra8 41. Qe4 Re8 42. Re1 Qb5 43. h4 Qh5 44. Ra1 Kg8 45. Ra8 Ne7 46. Rxe8+ Qxe8 47. Bd6 Nc8 48. Bc5 Ne7 49. Qe5 Ng6 50. Qe4 Ne7 51. Qd3 Ng6 52. Qd7 Qa8 53. Qf7+ Kh7 54. Qf5 Qa4 55. Bf2 Qa1+ 56. Kh2 Qe5+ 57. Qxe5 Nxe5 58. e7 Ng4+ 59. Kg3 Nf6 60. Bd4 Ne8 61. Kf4 Kg6 62. Ke5 Kf7 63. Bc5 Nf6 64. Ba3 Ng8 65. Kf5 g6+ 66. Ke5 Nxe7 67. Bxe7 Kxe7 68. g4 Kf7 69. Kd6 Kf6 70. Kd5 Ke7 71. Ke5 Kf7 72. g5 hxg5 73. hxg5 Ke7 1/2-1/2

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.16"]
[Round "3.32"]
[White "Jamrozik, Maciej"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "1974"]
[BlackElo "1909"]
[PlyCount "95"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Myślenice"]
[BlackTeam "Gliwice Politechnika Slaska"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nc3 a6 3. Nf3 b5 4. d4 e6 5. Be3 cxd4 6. Nxd4 Bb7 7. a3 Nf6 8. Bd3 d6 9. 0-0 Nbd7 10. f3 Be7 11. Qd2 Ne5 12. Qf2 Rc8 13. Nb3 0-0 14. Nd2 d5 15. h3 dxe4 16. Bxe4 Nxe4 17. fxe4 b4 18. axb4 Bxb4 19. Bd4 Ng6 20. Ndb1 Qe7 21. Kh1 Rfd8 22. Ra4 Rd7 23. e5 Nh4 24. Rg1 Nf5 25. Bb6 Rc4 26. Nd2 Qh4 27. Qxh4 Rxh4 28. Rd1 Bxc3 29. Rxh4 Nxh4 30. bxc3 Bxg2+ 31. Kg1 Bxh3 32. Kf2 Bg4 33. Rb1 Rxd2+ 34. Kg3 Ng6 35. Kxg4 Nxe5+ 36. Kf4 Ng6+ 37. Ke3 Rxc2 38. Kd3 Rg2 39. Bd4 h5 40. c4 e5 41. Be3 Ne7 42. Rb7 Nc6 43. Ke4 Rg6 44. Kd5 h4 45. Bc5 h3 46. Rb2 Nd4 47. Kxe5 h2 48. Kxd4 0-1

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.15"]
[Round "2.32"]
[White "Duda, Leon"]
[Black "Janik, Oskar1"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "1909"]
[BlackElo "1653"]
[PlyCount "121"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Gliwice Politechnika Slaska"]
[BlackTeam "Czestochowa Hetman"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. g3 Be7 5. Bg2 c5 6. Ngf3 Nc6 7. 0-0 0-0 8. Re1 dxe4 9. dxe4 Qc7 10. Nc4 b5 11. Bf4 Qd8 12. Nce5 Bb7 13. Qe2 Qb6 14. Nxc6 Bxc6 15. Ne5 Bb7 16. g4 Rad8 17. g5 Nd7 18. Nxd7 Rxd7 19. Qh5 e5 20. Bxe5 Qg6 21. Qxg6 fxg6 22. f4 Rd2 23. Rac1 c4 24. Red1 Rfd8 25. Rxd2 Rxd2 26. b3 Bc5+ 27. Kh1 Ba3 28. Rb1 cxb3 29. axb3 Rxc2 30. Rd1 Rc1 31. Rxc1 Bxc1 32. Kg1 a5 33. Kf2 a4 34. bxa4 bxa4 35. Ke2 Kf7 36. Kd1 Be3 37. Kc2 Bg1 38. h3 Bh2 39. Kc3 Bc6 40. Kb4 h6 41. Kc5 Bd7 42. gxh6 gxh6 43. Bf1 Bg1+ 44. Kb4 Be3 45. Bc4+ Ke7 46. f5 Bd2+ 47. Ka3 gxf5 48. exf5 Bg5 49. Bd3 Bf6 50. Bf4 Bg7 51. Bc2 Kf6 52. Bxh6 Bxh6 53. Bxa4 Bxf5 54. Bc6 Bxh3 55. Kb4 Bd2+ 56. Kb5 Bf5 57. Kb6 Ke6 58. Kb7 Kd6 59. Bg2 Bb4 60. Bf3 Bd7 61. Bg2 1/2-1/2

[Event "POL-chT U20 1st League"]
[Site "Chotowa"]
[Date "2025.06.14"]
[Round "1.32"]
[White "Pancewicz, Szymon"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2072"]
[BlackElo "1909"]
[PlyCount "84"]
[EventDate "2025.06.14"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB26_2025"]
[SourceDate "2025.06.25"]
[SourceVersion "1"]
[SourceVersionDate "2025.06.25"]
[SourceQuality "1"]
[WhiteTeam "Czternastka Warszawa II"]
[BlackTeam "Gliwice Politechnika Slaska"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qe7 8. Qd1 Nf6 9. Nc3 d6 10. Bg5 Be6 11. Nd5 Bxd5 12. exd5 Nb8 13. Be2 Nbd7 14. 0-0 0-0 15. c4 a5 16. b3 h6 17. Be3 Nh7 18. a3 f5 19. f3 Nhf6 20. b4 b6 21. Qb3 f4 22. Bf2 e4 23. Bd4 Kh8 24. Qb2 Rae8 25. Rac1 axb4 26. axb4 exf3 27. Bxf3 Ne5 28. Qc3 Nfd7 29. Kh1 Qg5 30. Rfe1 Rc8 31. Qb3 Rc7 32. Rc2 Rfc8 33. Rec1 Qf5 34. h3 Qd3 35. Qb2 Rxc4 36. Rxc4 Rxc4 37. Rxc4 Qxc4 38. Bg4 Qxd5 39. Bxd7 Nxd7 40. Bxg7+ Kh7 41. Bh8 Ne5 42. Bxe5 Qxe5 1/2-1/2

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.07.01"]
[Round "8"]
[White "Duda, Leon"]
[Black "Zareba, Piotr"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "1870"]
[BlackElo "2003"]
[PlyCount "126"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 g6 7. Bg2 Bg7 8. 0-0 0-0 9. h3 Bd7 10. Be3 Nc6 11. Nd5 Rc8 12. c3 Ne5 13. Qe2 Nc4 14. Bg5 Nxd5 15. exd5 Re8 16. Rfe1 Kf8 17. b3 Na3 18. Qd3 Nb5 19. Rac1 Nxd4 20. cxd4 Rxc1 21. Rxc1 Qb6 22. Rd1 h6 23. Bf4 Bf5 24. Be4 Bxe4 25. Qxe4 Rc8 26. h4 h5 27. Bg5 Bf6 28. Qf4 Bxg5 29. Qxg5 Qa5 30. Rd2 Rc1+ 31. Kg2 Qb5 32. Re2 Qxe2 33. Qxc1 Qe4+ 34. Kg1 Qxd5 35. Qc3 Kg7 36. a4 e5 37. dxe5 Qxe5 38. Qb4 Qd5 39. Qc3+ Kh7 40. Qb4 a5 41. Qb6 Kg7 42. Kf1 Kf6 43. Qd8+ Kg7 44. Qb6 Kh7 45. Kg1 Qe4 46. Kf1 Qf3 47. Ke1 Qc3+ 48. Ke2 Qc2+ 49. Ke1 Qe4+ 50. Kd2 Qf5 51. Ke2 d5 52. Qxb7 d4 53. Qb5 Qc2+ 54. Kf3 Qc3+ 55. Ke4 Qe1+ 56. Kf3 Qe6 57. Qc4 Qf5+ 58. Ke2 Qe4+ 59. Kd2 Kg8 60. Qc8+ Kg7 61. Qc4 Kg8 62. Qc8+ Kh7 63. Qc4 Kg8 1/2-1/2

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.30"]
[Round "7"]
[White "Duda, Leon"]
[Black "Chmiel, Dominika"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1870"]
[BlackElo "1966"]
[PlyCount "71"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 d5 7. Be2 Ne4 8. cxd4 Bb6 9. 0-0 0-0 10. Nc3 Bg4 11. Be3 f6 12. Rc1 Nxc3 13. bxc3 Bxf3 14. Bxf3 fxe5 15. dxe5 Bxe3 16. fxe3 Kh8 17. Qxd5 Qg5 18. e6 Qxe3+ 19. Kh1 Rfe8 20. Rfe1 Qf4 21. Qb3 Ne5 22. Qxb7 Nd3 23. e7 Nxe1 24. Rxe1 Qd2 25. Rd1 Qe3 26. Qxa8 Qxe7 27. Qxa7 Qh4 28. Qd4 Qe7 29. h3 h6 30. a4 c5 31. Qd7 Qe3 32. a5 Rf8 33. Qd3 Qf2 34. a6 Qa2 35. Qd6 Re8 36. Qd7 1-0

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.30"]
[Round "9"]
[White "Gaszka, Zuzanna"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B83"]
[WhiteElo "1901"]
[BlackElo "1870"]
[PlyCount "130"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. a3 d6 7. Be3 Be7 8. Be2 0-0 9. 0-0 e5 10. Nb3 Be6 11. Kh1 d5 12. exd5 Nxd5 13. Nxd5 Bxd5 14. f3 f5 15. Nd2 Bf6 16. c3 Kh8 17. Qc2 Bg5 18. Bxg5 Qxg5 19. Bc4 Rad8 20. Rad1 Ne7 21. Rfe1 Ng6 22. Bxd5 Rxd5 23. Nc4 Rxd1 24. Qxd1 e4 25. fxe4 fxe4 26. Rxe4 Nf4 27. Ne3 h6 28. c4 Qg6 29. Rd4 Qc6 30. Rd8 Rxd8 31. Qxd8+ Kh7 32. Qd4 Ne6 33. Qd3+ Kh8 34. h3 Qb6 35. b4 Nf4 36. Qe4 Ne2 37. Qf3 Nd4 38. Qf8+ Kh7 39. Qe7 Ne2 40. c5 Qg6 41. Nf1 Qd3 42. Qe3 Qd1 43. Qf3 Qe1 44. Kh2 Kh8 45. a4 Nd4 46. Qf8+ Kh7 47. b5 Qe5+ 48. Kh1 Ne6 49. Qd6 Qxd6 50. cxd6 Kg8 51. Ne3 Kf7 52. Nc4 Nc5 53. a5 Ke6 54. Kg1 Kd5 55. Ne3+ Ke6 56. g4 g6 57. h4 Ne4 58. a6 bxa6 59. bxa6 Kxd6 60. h5 gxh5 61. gxh5 Nf6 62. Nf5+ Kc5 63. Nxh6 Nxh5 64. Nf5 Nf6 65. Ne7 Kb6 1/2-1/2

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.29"]
[Round "6"]
[White "Sliz, Karol"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1989"]
[BlackElo "1870"]
[PlyCount "80"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 c5 2. Nf3 cxd4 3. Qxd4 Nc6 4. Qd2 d5 5. e3 Bf5 6. a3 Nf6 7. Bd3 Bg6 8. b4 e6 9. Bb2 Be7 10. 0-0 0-0 11. c4 dxc4 12. Bxc4 Ne4 13. Qe2 Bf6 14. Rd1 Qe7 15. b5 Na5 16. Bd3 Nb3 17. Ra2 Rac8 18. Ne5 Bxe5 19. Bxe5 Nc1 20. Qb2 Nxd3 21. Rxd3 Nxf2 22. Rd4 Nd3 23. Bd6 Qg5 24. Rxd3 Bxd3 25. Bf4 Qh4 26. Bg3 Qe4 27. Nc3 Qxe3+ 28. Bf2 Qe5 29. Nd1 Qxb2 30. Rxb2 Rc1 31. Rd2 Bc2 32. Bxa7 Rxd1+ 33. Rxd1 Bxd1 34. b6 Rc8 35. Kf2 e5 36. Ke1 Ba4 37. g4 h5 38. gxh5 f5 39. h4 f4 40. h6 gxh6 0-1

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.28"]
[Round "5"]
[White "Skrzypczak, Jan"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "1817"]
[BlackElo "1870"]
[PlyCount "42"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3 d6 7. Bg2 Be7 8. 0-0 0-0 9. Re1 e5 10. Nb3 Bg4 11. Bf3 Be6 12. Bg5 Ne8 13. Be3 f5 14. exf5 Bxf5 15. Nd5 Rc8 16. c3 Bg5 17. Qd2 Bxe3 18. Qxe3 Nf6 19. Qg5 Nxd5 20. Bxd5+ Kh8 21. Qxd8 Rcxd8 1/2-1/2

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.27"]
[Round "4"]
[White "Duda, Leon"]
[Black "Musial, Patryk"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "1870"]
[BlackElo "1786"]
[PlyCount "72"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 e6 2. d3 c5 3. g3 d5 4. Nd2 Nc6 5. Bg2 Nf6 6. Ne2 Be7 7. 0-0 h5 8. h3 Qc7 9. f4 d4 10. Nf3 b6 11. c3 dxc3 12. bxc3 c4 13. Ned4 Nxd4 14. cxd4 c3 15. Qc2 Bd7 16. a4 Rc8 17. Ba3 a6 18. Bxe7 Kxe7 19. Rfc1 b5 20. axb5 axb5 21. Qb3 h4 22. Nxh4 Nh5 23. e5 Nxg3 24. Kf2 Nh5 25. Ke3 Nxf4 26. Nf5+ exf5 27. Qb4+ Ke8 28. Kxf4 Rh4+ 29. Kf3 Qxe5 30. Re1 Rf4+ 31. Kg3 Re4+ 32. Kf2 Qf4+ 33. Kg1 Re6 34. Rec1 Re2 35. Rf1 Rxg2+ 36. Kxg2 Bc6+ 0-1

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.26"]
[Round "3"]
[White "Pietryk, Joanna"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "D33"]
[WhiteElo "1760"]
[BlackElo "1870"]
[PlyCount "98"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 cxd4 8. Nxd4 Bc5 9. Nb3 Bb6 10. Na4 0-0 11. Nxb6 axb6 12. Be3 Re8 13. h3 Bf5 14. Nd4 Be4 15. 0-0 Ne5 16. Bxe4 Nxe4 17. b3 Qd7 18. Kg2 b5 19. Bd2 Ra6 20. f3 Nd6 21. Bb4 Nc6 22. Nxc6 Nf5 23. Bc5 Rxc6 24. Bf2 Qe6 25. Qd3 b4 26. Rad1 d4 27. Rc1 Rc3 28. Rxc3 bxc3 29. Rd1 g6 30. g4 Qxe2 31. Qxe2 Rxe2 32. Kf1 Rxa2 33. gxf5 c2 34. Rc1 d3 35. Ke1 Rb2 36. f6 Rxb3 37. Kd2 h6 38. Bd4 b5 39. f4 b4 40. Bc5 Kh7 41. Be3 Ra3 42. Bc5 Rb3 43. Be3 Kg8 44. Bc5 Rb1 45. Be3 b3 46. Kxd3 b2 47. Kxc2 bxc1Q+ 48. Bxc1 Rb5 49. h4 Rh5 0-1

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.25"]
[Round "2"]
[White "Duda, Leon"]
[Black "Gawlik, Olivier"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1870"]
[BlackElo "1765"]
[PlyCount "101"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. h3 Bh5 9. Nd2 e6 10. Ngf3 Bd6 11. Ne5 Qc7 12. 0-0 Nxe5 13. dxe5 Bxe5 14. Qb5+ Nd7 15. Bxe5 Qxe5 16. Qxb7 Qb8 17. Qc6 Qc8 18. Qd6 Qc5 19. Qg3 Bg6 20. Nb3 Qb6 21. Bxg6 hxg6 22. Rfd1 Rc8 23. Rd4 0-0 24. Qf3 Ne5 25. Qe2 Nc4 26. Rb1 Qa6 27. Nc1 Qc6 28. Nd3 Qb6 29. Ne5 Nxe5 30. Qxe5 Rxc3 31. Ra4 Rc2 32. Qd4 Qxd4 33. Rxd4 Rb8 34. Ra4 Rb7 35. g3 Kf8 36. Kg2 Ke7 37. Ra6 Rd7 38. b3 d4 39. Rd1 e5 40. Kf3 f6 41. g4 Rdc7 42. g5 R2c6 43. Ra5 Ke6 44. h4 Kf5 45. gxf6 Rxf6 46. Kg2 Rd6 47. Re1 Re7 48. Kf3 Rc6 49. Rg1 Kf6 50. Ke4 Rd6 51. Rg3 1/2-1/2

[Event "Lazy Baltic Pearl op-A 20th"]
[Site "Lazy"]
[Date "2024.06.24"]
[Round "1"]
[White "Karwowski, Kacper"]
[Black "Duda, Leon"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "2155"]
[BlackElo "1870"]
[PlyCount "79"]
[EventDate "2024.06.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 220 Extra"]
[Source "ChessBase"]
[SourceDate "2024.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2024.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. Bf4 Nxe4 8. Qf3 d5 9. Nc7+ Kf8 10. Nxa8 e5 11. Bd2 Nxd2 12. Qxd5 Nxf1 13. Qxd8+ Nxd8 14. 0-0-0 Ne6 15. Nc7 Ba5 16. Nxe6+ Bxe6 17. Rhxf1 f6 18. b4 Bb6 19. Nd5 Bd4 20. c3 Bxd5 21. cxd4 e4 22. Kb2 b5 23. Rc1 Bc4 24. Rfe1 f5 25. f3 exf3 26. gxf3 Kf7 27. Re5 Kf6 28. a4 a6 29. f4 Rd8 30. d5 g5 31. Re6+ Kf7 32. fxg5 Rxd5 33. Rxa6 Rd2+ 34. Rc2 Rd3 35. axb5 Rb3+ 36. Kc1 Rxb4 37. Rf6+ Kg7 38. b6 Ba6 39. Rc7+ Kg8 40. Rd6 1-0

[Event "EU-ch Blitz"]
[Site "Katowice"]
[Date "2022.12.16"]
[Round "9"]
[White "Aymerich Verdaguer, Eduard"]
[Black "Duda, Leon"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2208"]
[BlackElo "1546"]
[PlyCount "85"]
[EventDate "2022.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "22"]
[EventCountry "POL"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. d4 c5 2. c3 e6 3. Nf3 d5 4. Bf4 Nc6 5. e3 Nf6 6. Nbd2 Bd6 7. Ne5 0-0 8. Bd3 Qc7 9. Ndf3 b6 10. 0-0 Bb7 11. Rc1 Nd7 12. Bxh7+ Kh8 13. Nxd7 Qxd7 14. Bxd6 Qxd6 15. Bd3 g6 16. e4 cxd4 17. cxd4 Nb4 18. e5 Qe7 19. Bb1 Kg7 20. Qd2 Rh8 21. Rc3 Rac8 22. Rfc1 Rxc3 23. Rxc3 Rc8 24. Rxc8 Bxc8 25. Qc3 Bb7 26. h4 Nc6 27. Bd3 Qb4 28. Nd2 Qxc3 29. bxc3 Kf8 30. f4 Ke7 31. Kf2 Kd7 32. Kf3 Ne7 33. Kg4 Kc6 34. Kg5 Ng8 35. g4 b5 36. h5 gxh5 37. gxh5 Kb6 38. Nb3 a5 39. h6 Nxh6 40. Kxh6 a4 41. Nc5 Bc6 42. a3 Be8 43. Kg7 1-0

[Event "EU-ch Blitz"]
[Site "Katowice"]
[Date "2022.12.16"]
[Round "10"]
[White "Duda, Leon"]
[Black "Aymerich Verdaguer, Eduard"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "1546"]
[BlackElo "2208"]
[PlyCount "95"]
[EventDate "2022.12.16"]
[EventType "swiss (blitz)"]
[EventRounds "22"]
[EventCountry "POL"]
[SourceTitle "CBM 211 Extra"]
[Source "ChessBase"]
[SourceDate "2023.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. 0-0 Be7 9. Kh1 0-0 10. f4 d6 11. Bf3 Nxd4 12. Bxd4 e5 13. Be3 b5 14. Nd5 Nxd5 15. exd5 exf4 16. Bxf4 Bf6 17. c3 b4 18. cxb4 Bxb2 19. Rb1 Bf6 20. Qd3 g6 21. Rbc1 Qd8 22. Rc6 Bf5 23. Qa3 Be5 24. Bxe5 dxe5 25. Rxa6 Rxa6 26. Qxa6 e4 27. Be2 Qxd5 28. Bc4 Qd2 29. b5 e3 30. b6 Be4 31. Rg1 Qd7 32. a4 Ra8 33. Qb5 Bc6 34. Qb3 Rxa4 35. Rf1 Qg4 36. Bxf7+ Kg7 37. Qc3+ Kh6 38. Qxe3+ g5 39. Qe6+ Qxe6 40. Bxe6 Rb4 41. Bg4 Rxb6 42. h3 Kg7 43. Bf3 Bxf3 44. Rxf3 Kg6 45. Kh2 h5 46. Ra3 Rb2 47. Ra6+ Kf5 48. Ra5+ 1/2-1/2

[Event "Ustron op-C"]
[Site "Ustron"]
[Date "2020.08.15"]
[Round "2"]
[White "Duda, Leon"]
[Black "Celebias, Filip"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1432"]
[BlackElo "1627"]
[PlyCount "116"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. Nc3 g6 4. e3 Bg7 5. d4 d6 6. Bd3 0-0 7. h3 Re8 8. 0-0 e5 9. dxe5 dxe5 10. e4 h6 11. b3 Qc7 12. Bb2 Nbd7 13. Qe2 a5 14. Rad1 Nc5 15. Ba3 Ne6 16. Bb1 Bf8 17. Bxf8 Kxf8 18. Qd2 g5 19. h4 Nh7 20. Qd6+ Qxd6 21. Rxd6 Ke7 22. Rfd1 f6 23. Ne2 Nhf8 24. hxg5 hxg5 25. Ng3 Nd4 26. Nxd4 Kxd6 27. Nb5+ Kc5 28. Nc7 Bg4 29. Rc1 Rad8 30. Nxe8 Rxe8 31. f3 Bc8 32. Rd1 Ne6 33. Nf5 Rd8 34. Rxd8 Nxd8 35. Ne7 Be6 36. Ng6 Kd6 37. c5+ Kd7 38. Nf8+ Ke7 39. Nxe6 Nxe6 40. Kf2 Nxc5 41. Ke3 Kd6 42. g3 Ne6 43. Bd3 b5 44. Be2 Kc5 45. a3 Nd4 46. Bd1 Ne6 47. Bc2 Nd4 48. Bd1 a4 49. bxa4 b4 50. axb4+ Kxb4 51. f4 c5 52. fxe5 fxe5 53. Bh5 Kxa4 54. Kd3 Kb4 55. Bf7 Nb3 56. Bh5 c4+ 57. Ke3 Nd4 58. Bd1 Kc3 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "1.33"]
[White "Cieply, Krzysztof"]
[Black "Duda, Leon"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "1573"]
[BlackElo "1388"]
[PlyCount "79"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb3 Nf6 6. Bg5 h6 7. Bxf6 Qxf6 8. Bd3 Be7 9. 0-0 0-0 10. Nc3 Qg6 11. Kh1 d6 12. Nd5 f5 13. exf5 Bxf5 14. Bxf5 Rxf5 15. Qe2 Raf8 16. f3 Kh8 17. Nd2 Qe6 18. Qd3 Nd4 19. Nxe7 Qxe7 20. Rae1 Rh5 21. Qxd4 Qg5 22. Qf2 Rf4 23. g3 Rf8 24. Qg2 d5 25. f4 exf4 26. g4 Rh4 27. Nf3 Qxg4 28. Nxh4 Qxh4 29. Rg1 g5 30. Qxd5 f3 31. Qe5+ Kg8 32. Qe6+ Kh8 33. Qe7 Kg8 34. Re6 Qh5 35. Rf6 Re8 36. Rxh6 Qxh6 37. Rxg5+ Qxg5 38. Qxg5+ Kf7 39. Qh5+ Ke7 40. Qxf3 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "8.32"]
[White "Doroba, Ludwik"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "A44"]
[WhiteElo "1330"]
[BlackElo "1388"]
[PlyCount "106"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. e4 d6 4. Nc3 g6 5. Nf3 Bg7 6. Bb5+ Nd7 7. 0-0 a6 8. Bxd7+ Bxd7 9. a4 Ne7 10. Ne1 0-0 11. f3 b5 12. b3 b4 13. Ne2 f5 14. Nd3 f4 15. Nb2 h5 16. Kh1 g5 17. Ng1 Ng6 18. Bd2 g4 19. Nc4 Rf6 20. Qe2 g3 21. h3 Nf8 22. Rfb1 Nh7 23. Qf1 Rg6 24. Re1 Rb8 25. Re2 Bf8 26. Rd1 Rb7 27. Bc1 Be7 28. Bb2 Bh4 29. Rdd2 Qc8 30. Ba1 Ng5 31. Bb2 Kh7 32. Ba1 Nxh3 33. gxh3 g2+ 34. Rxg2 Bxh3 35. Nxh3 Qxh3+ 36. Kg1 Bg3 37. Qe2 h4 38. Bxe5 Qd7 39. Bxf4 Qg7 40. Bxg3 h3 41. Be5 dxe5 42. Rg4 Qf6 43. Rxg6 Kxg6 44. Qh2 Qh4 45. Rg2+ Kh6 46. Qg3 Qh5 47. Qg6+ Qxg6 48. Rxg6+ Kxg6 49. Nxe5+ Kf6 50. Nd3 Rc7 51. Kh2 a5 52. Nb2 Ke5 53. Nc4+ Kf4 1/2-1/2

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "7.38"]
[White "Duda, Leon"]
[Black "Bochenek, Ryszard"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "1388"]
[BlackElo "1445"]
[PlyCount "142"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Nc2 Be6 10. Be2 0-0 11. Be3 Nd7 12. 0-0 f5 13. f4 Kh8 14. Kh1 fxe4 15. Nxe4 Bf5 16. Bf3 Nf6 17. Ng3 Be6 18. Bd5 Bg4 19. Qd2 Qd7 20. b3 Nxd5 21. Qxd5 Be6 22. Qd2 Rad8 23. Bb6 Rc8 24. Rad1 Bg4 25. Rde1 Bh4 26. Bf2 exf4 27. Ne4 Bxf2 28. Rxf2 f3 29. g3 Rcd8 30. Ne3 Ne5 31. Rd1 Bf5 32. Qd5 Bxe4 33. Qxe4 Rde8 34. Qd4 Nc6 35. Qd3 Qe6 36. Nc2 Ne5 37. Qxd6 Ng4 38. Rff1 Qxd6 39. Rxd6 Re2 40. Rxf3 Rfe8 41. Nd4 Rxh2+ 42. Kg1 h6 43. Rb6 Rd8 44. Rf4 Rd2 45. Rxg4 R2xd4 46. Rxd4 Rxd4 47. Rxb7 Rd1+ 48. Kg2 Rd2+ 49. Kf3 Rxa2 50. b4 Rb2 51. Rb6 Kg8 52. c5 Rb3+ 53. Kf4 Kf7 54. c6 Ke6 55. Kg4 Kd6 56. Rxa6 Rxb4+ 57. Kh5 Rb5+ 58. Kh4 Rg5 59. g4 Kc7 60. Kg3 Rc5 61. Kh4 Rg5 62. Kg3 g6 63. Kh4 Rc5 64. Ra7+ Kxc6 65. Ra6+ Kd7 66. Rxg6 Ke7 67. Rxh6 Kf7 68. Rb6 Kg7 69. g5 Rc8 70. Kh5 Rh8+ 71. Kg4 Rf8 1/2-1/2

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "4.45"]
[White "Duda, Leon"]
[Black "Maj, Samuel"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1388"]
[BlackElo "1305"]
[PlyCount "104"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 Be6 9. f4 exf4 10. Bxf4 0-0 11. Bf3 Nc6 12. Nd4 Bd7 13. Nf5 Bxf5 14. exf5 Qb6+ 15. Kh1 Qxb2 16. Qd2 Qb6 17. Rab1 Qc7 18. Bg5 Rab8 19. Rfd1 Ne5 20. Be2 Rfc8 21. Bxf6 Bxf6 22. Ne4 Be7 23. c3 Qc6 24. Qd5 Qxd5 25. Rxd5 Rc6 26. h3 Nd7 27. Rd4 Nf6 28. Nxf6+ Bxf6 29. Rdb4 b6 30. c4 Bd4 31. g4 Re8 32. Bf3 Rc7 33. Kg2 a5 34. Ra4 Bc5 35. Bd5 Rce7 36. Bf3 Re3 37. Rb2 h6 38. Rb3 Kh7 39. Bd5 Re2+ 40. Kh1 Re1+ 41. Kg2 R8e2+ 42. Kf3 Re3+ 43. Kg2 R3e2+ 44. Kf3 Re7 45. h4 g6 46. f6 R7e3+ 47. Kg2 Kg8 48. Rxa5 bxa5 49. Rb7 R3e2+ 50. Kh3 Re3+ 51. Kg2 R1e2+ 52. Kf1 Re5 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "2.51"]
[White "Duda, Leon"]
[Black "Mossakowski, Jakub"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1388"]
[BlackElo "1302"]
[PlyCount "103"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. Qd2 d5 10. exd5 Nxd5 11. 0-0-0 Nf6 12. Bf3 Qxd2+ 13. Rxd2 Nc6 14. Nc5 Bc8 15. Nd5 Nxd5 16. Bxd5 0-0 17. Re1 Nb4 18. a3 Nxd5 19. Rxd5 f6 20. Nd7 Rd8 21. Red1 b5 22. Nb6 Rb8 23. Nxc8 Rbxc8 24. b4 Rc6 25. Bc5 Bxc5 26. Rxc5 Rxc5 27. bxc5 Rc8 28. Rd5 Kf7 29. Kb2 Rc6 30. Kb3 Ke6 31. c4 bxc4+ 32. Kxc4 g5 33. g4 Ke7 34. Rd3 Ke6 35. Rb3 h6 36. Rb6 Rxb6 37. cxb6 Kd6 38. a4 Kc6 39. a5 Kd6 40. Kd3 h5 41. gxh5 f5 42. h6 e4+ 43. Kd4 f4 44. h7 e3 45. fxe3 fxe3 46. Kxe3 g4 47. h8Q g3 48. hxg3 Kc6 49. Kd4 Kb7 50. Qg7+ Kb8 51. Qc7+ Ka8 52. Qa7# 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "6.39"]
[White "Duda, Leon"]
[Black "Motyl, Mateusz"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "1388"]
[BlackElo "1109"]
[PlyCount "61"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 b5 10. Bf3 Bb7 11. Be3 exf4 12. Bxf4 Nc6 13. Nd5 Nxd5 14. exd5 Ne5 15. Nd4 Qb6 16. c3 Bf6 17. Be4 Qc5 18. Kh1 Bxd5 19. Bxd5 Qxd5 20. Nf5 Nd3 21. Bxd6 Rfd8 22. Rf3 g6 23. Nh6+ Kg7 24. Rxd3 Qe6 25. Ng4 h5 26. Nxf6 Kxf6 27. Be5+ Ke7 28. Bd4 Qc8 29. Qd2 Ke8 30. Re1+ Kf8 31. Qh6+ 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "9.21"]
[White "Duda, Leon"]
[Black "Wieckowski, Michal"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "1388"]
[BlackElo "1494"]
[PlyCount "75"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[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 Nxd4 10. Bxd4 Be6 11. g4 Qa5 12. a3 Rfc8 13. h4 h5 14. gxh5 Nxh5 15. Bxg7 Kxg7 16. Be2 Qe5 17. Kb1 Rc5 18. Bd3 Nf4 19. Rdg1 f6 20. Ne2 Nxe2 21. Qxe2 b5 22. Qe3 Qh5 23. Rh2 Bf7 24. f4 e5 25. f5 Rg8 26. Be2 Qh6 27. Qd3 d5 28. fxg6 Be6 29. h5 Rgc8 30. Bg4 dxe4 31. Qxe4 Rc4 32. Qf3 Bxg4 33. Rxg4 Rxg4 34. Qxg4 Qf4 35. Qe6 Rc7 36. h6+ Kxg6 37. Rg2+ Kxh6 38. Qh3+ 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "3.27"]
[White "Lochinski, Pawel"]
[Black "Duda, Leon"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "1426"]
[BlackElo "1388"]
[PlyCount "80"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. 0-0 Nf6 5. Re1 Bd7 6. c3 g6 7. Bxc6 Bxc6 8. e5 dxe5 9. Nxe5 Bg7 10. Nxc6 bxc6 11. d3 0-0 12. Be3 Qb6 13. b4 Nd7 14. Qc2 a5 15. bxc5 Nxc5 16. d4 Nd7 17. Nd2 Qc7 18. Rab1 c5 19. d5 c4 20. Bg5 Nf6 21. Bxf6 Bxf6 22. Ne4 Be5 23. g3 Rfd8 24. Red1 Rd7 25. Rb5 Rad8 26. Qa4 h6 27. Rc5 Qb7 28. Qxc4 f5 29. d6+ Kg7 30. Rxe5 fxe4 31. Qxe4 Qxe4 32. Rxe4 exd6 33. Ra4 Rc8 34. c4 Kf6 35. Rd5 Ke6 36. Rd4 Rc5 37. f4 Rb7 38. Rd2 Rb4 39. Rxb4 axb4 40. Rc2 Kf5 1/2-1/2

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2020.??.??"]
[Round "5.57"]
[White "Slowik, Jakub"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "A44"]
[WhiteElo "1251"]
[BlackElo "1388"]
[PlyCount "76"]
[EventDate "2020.10.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. d4 c5 2. d5 e5 3. c4 d6 4. Nc3 f5 5. e4 Be7 6. Bd3 f4 7. Nf3 Bg4 8. 0-0 Nf6 9. Be2 Qd7 10. h3 Bxf3 11. Bxf3 h5 12. Qa4 g5 13. Qxd7+ Nbxd7 14. Be2 0-0-0 15. a3 Rdg8 16. g3 Nf8 17. b4 Ng6 18. bxc5 dxc5 19. a4 g4 20. h4 Nd7 21. Bd2 Bxh4 22. gxh4 Nxh4 23. Be1 Ng6 24. f3 g3 25. Kg2 Nf6 26. Bxg3 Ne7 27. Kf2 fxg3+ 28. Kg2 h4 29. Rh1 Nh5 30. Kg1 Nf4 31. Bf1 h3 32. Bxh3+ Nxh3+ 33. Kg2 Nf4+ 34. Kg1 g2 35. Rxh8 Rxh8 36. Kf2 Rh1 37. Rg1 Nh3+ 38. Kxg2 Rxg1+ 0-1

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.03"]
[Round "9.14"]
[White "Duda, Leon"]
[Black "Domanski, Alan"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "50"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nc6 3. Nf3 g6 4. d3 Bg7 5. Be2 b6 6. 0-0 Bb7 7. Re1 Qc7 8. d4 cxd4 9. cxd4 0-0-0 10. Nc3 d6 11. Ng5 Rf8 12. Nb5 a6 13. Nxc7 Kxc7 14. Nf3 b5 15. Bf1 e5 16. d5 Nce7 17. Qc2+ Kd7 18. a4 Nf6 19. axb5 axb5 20. Bxb5+ Kd8 21. Bd2 Nd7 22. Bc6 Bxc6 23. dxc6 Nb8 24. c7+ Kc8 25. Ra8 Kd7 1-0

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.03"]
[Round "8.20"]
[White "Rzasa, Mateusz"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "98"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Bc4 Bc5 4. 0-0 0-0 5. Nc3 d6 6. d3 h6 7. h3 Nc6 8. Be3 Bd4 9. Bxd4 Nxd4 10. Nxd4 exd4 11. Nd5 Nxd5 12. Bxd5 c6 13. Bb3 Qg5 14. Qf3 Be6 15. Bxe6 fxe6 16. Qg3 Qxg3 17. fxg3 Rxf1+ 18. Rxf1 Rf8 19. h4 Rxf1+ 20. Kxf1 Kf7 21. Kf2 Kf6 22. g4 g5 23. hxg5+ hxg5 24. g3 Ke5 25. a4 d5 26. exd5 exd5 27. b4 Kd6 28. Ke1 c5 29. bxc5+ Kxc5 30. Kd2 Kb4 31. a5 Kxa5 32. c3 dxc3+ 33. Kxc3 Kb5 34. d4 a5 35. Kb3 a4+ 36. Ka3 Ka5 37. Ka2 b5 38. Ka3 b4+ 39. Kb2 Kb5 40. Ka2 Kc4 41. Kb2 Kxd4 42. Ka2 Kc4 43. Kb2 d4 44. Kc2 b3+ 45. Kb2 Kb4 46. Ka1 d3 47. Kb1 d2 48. Kb2 a3+ 49. Kb1 d1R# 0-1

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.03"]
[Round "2.1"]
[White "Wierzbicki, Dawid"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1362"]
[PlyCount "74"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Nc3 Nc6 7. Bg5 Be7 8. Be2 0-0 9. 0-0 h6 10. Be3 Re8 11. h3 d5 12. d4 Ne4 13. Nxe4 dxe4 14. Nd2 Nxd4 15. Nxe4 Nxe2+ 16. Qxe2 Bf6 17. Rad1 Qe7 18. Nxf6+ Qxf6 19. Qb5 c6 20. Qb4 Be6 21. Bd4 Qg6 22. Qxb7 Bxh3 23. g3 Bxf1 24. Rxf1 Rad8 25. Bxa7 Qxc2 26. a3 Rd1 27. Rxd1 Qxd1+ 28. Kh2 Qh5+ 29. Kg2 Re1 30. Qc8+ Kh7 31. g4 Qh1+ 32. Kg3 Rg1+ 33. Kf4 g5+ 34. Ke3 Re1+ 35. Kd2 Rd1+ 36. Kc2 Rc1+ 37. Kb3 Qd5+ 0-1

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.02"]
[Round "7.7"]
[White "Duda, Leon"]
[Black "Baszczynski, Gabriel"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1078"]
[PlyCount "108"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Be2 Be7 7. 0-0 0-0 8. Nc3 Nc6 9. Re1 Bg4 10. h3 Bh5 11. d4 d5 12. Bd3 Nxd4 13. Bxh7+ Kxh7 14. Qxd4 Qd6 15. Ng5+ Kg8 16. Bf4 Qc5 17. Qxc5 Bxc5 18. Bxc7 Rac8 19. Be5 Nd7 20. Nxd5 f6 21. Ne6 Rfe8 22. Nxc5 Rxc5 23. Bd4 Rxd5 24. Rxe8+ Bxe8 25. Bxa7 b6 26. Re1 Kf7 27. b4 Rd4 28. c3 Rc4 29. Rc1 Rc7 30. Bxb6 Nxb6 31. a3 Ra7 32. Ra1 Nc4 33. a4 Rxa4 34. Rxa4 Bxa4 35. f3 Bb5 36. Kf2 Na3 37. Ke3 Nb1 38. Kd4 Ke6 39. c4 Be8 40. b5 Kd6 41. c5+ Ke6 42. c6 Kd6 43. Kc4 Na3+ 44. Kb4 Nxb5 45. Kxb5 Bxc6+ 46. Kc4 Ke5 47. Kd3 Kf4 48. Ke2 Kg3 49. Kf1 Bxf3 50. gxf3 Kxf3 51. h4 Kg4 52. h5 Kxh5 53. Kf2 Kh4 54. Kf3 Kh3 0-1

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.02"]
[Round "6.21"]
[White "Trabka, Eryk"]
[Black "Duda, Leon"]
[Result "0-1"]
[ECO "C50"]
[PlyCount "48"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. Nf3 Bc5 5. d3 h6 6. Bd2 0-0 7. Qe2 d6 8. 0-0-0 Bg4 9. h3 Bh5 10. g4 Bg6 11. h4 Nxg4 12. Ne1 Nxf2 13. Ng2 Nxd1 14. Rxd1 Nd4 15. Qe1 Bh5 16. Qf2 Nb3+ 17. axb3 Bxf2 18. Rf1 Bxh4 19. Nxh4 Qxh4 20. Bd5 c6 21. Be1 Qg5+ 22. Bd2 Qg2 23. Ne2 Qxf1+ 24. Be1 Qxe1# 0-1

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.01"]
[Round "5.16"]
[White "Duda, Leon"]
[Black "Rozek, Michal"]
[Result "1/2-1/2"]
[ECO "C42"]
[PlyCount "82"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Bc4 Nf6 5. 0-0 0-0 6. Re1 d6 7. h3 Be6 8. Bxe6 fxe6 9. d3 h6 10. a3 Bxc3 11. bxc3 d5 12. exd5 exd5 13. d4 e4 14. Ne5 Qd6 15. Ng4 Nxg4 16. Qxg4 Qf6 17. Rf1 Qf5 18. Qg3 Rf6 19. Qxc7 Qc8 20. Qxc8+ Rxc8 21. Rb1 b6 22. Bd2 Ne7 23. Rb4 Ng6 24. g3 Ne7 25. g4 Rf3 26. Kg2 Ng6 27. Rb5 Nh4+ 28. Kh2 Rff8 29. Rxd5 Nf3+ 30. Kg2 Nxd2 31. Rd1 Nc4 32. Ra1 a6 33. g5 b5 34. gxh6 gxh6 35. Rh5 Kh7 36. a4 Rg8+ 37. Kh2 Rgf8 38. axb5 axb5 39. Kg1 Rg8+ 40. Kf1 Rb8 41. Ra7+ Rg7 1/2-1/2

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.05.01"]
[Round "4.5"]
[White "Jaworski, Tymon"]
[Black "Duda, Leon"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1176"]
[PlyCount "89"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Qxe7+ Bxe7 8. g3 0-0 9. Bg2 Nc6 10. 0-0 Nb4 11. Na3 Re8 12. Bd2 d5 13. Rfe1 Bg4 14. h3 Be6 15. Bf1 Nc6 16. Nb5 Rec8 17. Bf4 Ne8 18. a3 a6 19. Nbd4 Nxd4 20. Nxd4 c5 21. Nxe6 fxe6 22. Rxe6 Bf6 23. Rb1 Kf7 24. Re2 Nc7 25. Bg2 Kg8 26. h4 Kh8 27. Bh3 Re8 28. Rxe8+ Nxe8 29. c3 d4 30. c4 b5 31. Bg2 Ra7 32. b3 g6 33. Re1 Nc7 34. Bxc7 Rxc7 35. Re8+ Kg7 36. Ra8 bxc4 37. bxc4 g5 38. Rxa6 gxh4 39. gxh4 Bxh4 40. a4 Bd8 41. Ra8 Bg5 42. a5 Kf7 43. a6 Kf6 44. a7 Rf7 45. Bd5 1-0

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.04.30"]
[Round "3.10"]
[White "Duda, Leon"]
[Black "Musial, Igor"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "46"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 0-0 8. 0-0 Re8 9. Bg5 Be7 10. e5 Nd5 11. Nxd5 cxd5 12. Bxe7 Qxe7 13. Re1 Bb7 14. c3 Qg5 15. Qe2 d6 16. Qc2 dxe5 17. Bxh7+ Kh8 18. Bf5 d4 19. g3 dxc3 20. bxc3 Rad8 21. Rad1 Qh5 22. Rxd8 Rxd8 23. Be4 Bc8 1/2-1/2

[Event "POL-ch U08"]
[Site "Poronin"]
[Date "2016.04.30"]
[Round "1.28"]
[White "Duda, Leon"]
[Black "Szreter, Marek"]
[Result "1-0"]
[ECO "B13"]
[PlyCount "89"]
[EventDate "2016.04.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. Nf3 Bg4 6. Be3 Nf6 7. 0-0 e6 8. h3 Bh5 9. Re1 Bd6 10. Nc3 0-0 11. Bg5 h6 12. Bh4 Re8 13. Nb5 Bb4 14. c3 Ba5 15. b4 Bb6 16. a4 a6 17. Na3 Rc8 18. b5 axb5 19. axb5 Ba5 20. bxc6 Bxc3 21. cxb7 Rb8 22. Rb1 Bxe1 23. Qxe1 Bxf3 24. gxf3 g5 25. Bg3 e5 26. Bxe5 Nh5 27. Qb4 Rxe5 28. dxe5 Nf4 29. Bf5 Kg7 30. Nc2 Qc7 31. Qb2 Kf8 32. e6 fxe6 33. Qh8+ Ke7 34. Qxh6 exf5 35. Qxg5+ Ke6 36. Nd4+ Ke5 37. Qxf4+ Kxf4 38. Ne6+ Kxf3 39. Nxc7 d4 40. Na6 Rxb7 41. Rxb7 d3 42. Kf1 d2 43. Rb3+ Ke4 44. Ke2 f4 45. f3+ 1-0

