[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

