[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.26"]
[Round "9.46"]
[White "Kopia, Julian"]
[Black "Radziszewski, Leon"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1836"]
[BlackElo "1679"]
[PlyCount "63"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Krakow CC 1893"]
[BlackTeam "Ostrow Wielkopolski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 d4 11. Ne2 0-0 12. 0-0 Bg4 13. f3 Bh5 14. Nf4 Bg6 15. Nxg6 fxg6 16. f4 Ne7 17. Bc4+ Kh8 18. Qf3 Qb6 19. Re1 Nf5 20. Kh1 Rae8 21. Bd2 Qxb2 22. Bb3 Ne4 23. Bb4 Nh4 24. Qf1 d3 25. Bxf8 Qd4 26. Rxe4 Rxe4 27. Qg1 Qf6 28. Bc5 Rxf4 29. Re1 Qc6 30. Bd5 Qd7 31. Re7 Qd8 32. Bf7 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.25"]
[Round "8.64"]
[White "Radziszewski, Leon"]
[Black "Nieroda, Jakub"]
[Result "1-0"]
[ECO "B73"]
[WhiteElo "1679"]
[BlackElo "1474"]
[PlyCount "105"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Ostrow Wielkopolski"]
[BlackTeam "Ciepłownia Rydułtowy II"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Nc6 7. Be3 Bg7 8. Qd2 0-0 9. 0-0 Ng4 10. Nxc6 bxc6 11. Bf4 Ne5 12. Bg3 Be6 13. f4 Nc4 14. Bxc4 Bxc4 15. Rfb1 Qa5 16. a4 Rab8 17. Ra3 Rb7 18. e5 dxe5 19. fxe5 Bxe5 20. Bxe5 Qxe5 21. Kh1 Rfb8 22. b3 Qd6 23. Qxd6 exd6 24. Raa1 Be6 25. Ne4 d5 26. Nc5 Re7 27. Re1 Rbe8 28. Kg1 Bf5 29. Rxe7 Rxe7 30. Rc1 Re2 31. c3 Rc2 32. Rxc2 Bxc2 33. b4 Kg7 34. Kf2 Kf6 35. Ke3 Ke5 36. a5 f5 37. Nd7+ Kd6 38. Nf8 Be4 39. g4 h5 40. g5 Kc7 41. Nxg6 Kb7 42. Ne5 d4+ 43. Kxd4 Bd5 44. c4 Be6 45. Kc5 f4 46. Kd4 Kc7 47. Ke4 f3 48. Kxf3 Kd6 49. Ke4 c5 50. b5 Kc7 51. g6 Kb7 52. Nf7 Bxc4 53. Nd6+ 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.24"]
[Round "7.76"]
[White "Nawrocki, Szymon2"]
[Black "Radziszewski, Leon"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1525"]
[BlackElo "1679"]
[PlyCount "112"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Rogi Czarny Kon"]
[BlackTeam "Ostrow Wielkopolski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Be3 Bb4 7. Nxc6 bxc6 8. Bd3 d5 9. exd5 cxd5 10. Bd2 0-0 11. a3 Be7 12. 0-0 e5 13. f3 e4 14. fxe4 dxe4 15. Bxe4 Qd4+ 16. Kh1 Nxe4 17. Nxe4 Qxe4 18. Re1 Qh4 19. Qf3 Be6 20. Bc3 Qg5 21. Re5 Qf6 22. Qe3 Qg6 23. Qf2 Bf6 24. Re3 Bxc3 25. Rxc3 Rfc8 26. Rxc8+ Rxc8 27. c3 a5 28. Rd1 h5 29. Qb6 Qc2 30. Rg1 h4 31. h3 Qe4 32. Kh2 Qf4+ 33. Kh1 Qg3 34. Rd1 Re8 35. Rd8 Qe1+ 36. Kh2 Qe5+ 37. Kh1 Bd5 38. Rxe8+ Qxe8 39. Qf2 Qe4 40. Qd2 f5 41. Qg5 Qe1+ 42. Kh2 Qg3+ 43. Qxg3 hxg3+ 44. Kxg3 g5 45. b4 a4 46. h4 gxh4+ 47. Kxh4 Bxg2 48. Kg5 Be4 49. c4 Kf7 50. b5 Ke6 51. c5 Kd5 52. c6 Kc4 53. b6 Bxc6 54. Kxf5 Kb3 55. Ke5 Kxa3 56. Kd4 Kb2 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.23"]
[Round "6.57"]
[White "Nowicki, Franciszek"]
[Black "Radziszewski, Leon"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1770"]
[BlackElo "1679"]
[PlyCount "67"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Poznan Na Pieterku"]
[BlackTeam "Ostrow Wielkopolski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. a3 Bc5 7. Nb3 Be7 8. Be2 0-0 9. 0-0 a6 10. Be3 b5 11. f4 d6 12. Bf3 e5 13. f5 Bb7 14. Qe1 Kh8 15. Rd1 Qc7 16. Bg5 h6 17. Bxf6 Bxf6 18. Nd5 Qd8 19. Nxf6 Qxf6 20. g4 g5 21. Na5 Rab8 22. Nxc6 Bxc6 23. Qa5 h5 24. h3 hxg4 25. hxg4 Rfd8 26. Qxa6 Bb7 27. Qa5 Kg7 28. Rf2 Bc6 29. Rfd2 Rd7 30. Qb4 Qh6 31. Rxd6 Qh4 32. Qc3 Qg3+ 33. Bg2 Bxe4 34. Qxg3 1-0

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.22"]
[Round "5.82"]
[White "Wagiel, Mikolaj"]
[Black "Radziszewski, Leon"]
[Result "0-1"]
[ECO "A57"]
[BlackElo "1679"]
[PlyCount "108"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Lublin Cebularz"]
[BlackTeam "Ostrow Wielkopolski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 g6 5. cxb5 a6 6. e4 Bg7 7. a4 Nxe4 8. Bd3 Nf6 9. d6 0-0 10. 0-0 exd6 11. Nc3 d5 12. Bg5 Bb7 13. Bc2 d4 14. Ne4 Bxe4 15. Bxe4 d5 16. Bc2 Qb6 17. Qd3 Ne4 18. Qe2 Nxg5 19. Nxg5 c4 20. Qf3 Qd6 21. Rfe1 d3 22. Bd1 axb5 23. Re8 Qd7 24. Rxf8+ Bxf8 25. b3 Qe7 26. h4 h6 27. Qxd5 hxg5 28. Qxa8 Qe1+ 29. Kh2 Qe5+ 30. g3 Qxa1 31. Qf3 gxh4 32. gxh4 Bd6+ 33. Kg2 Qe5 34. axb5 Qh2+ 35. Kf1 Qxh4 36. bxc4 Qxc4 37. b6 d2+ 38. Kg1 Qf4 39. Qd5 g5 40. Qg2 Qe5 41. b7 Qe1+ 42. Qf1 Qxf1+ 43. Kxf1 Kf8 44. Ke2 Bf4 45. Kd3 Ke7 46. Ke4 f6 47. Kf5 Be5 48. Bb3 Kd6 49. Ke4 Kc7 50. Kd3 Bf4 51. Kc4 Kxb7 52. Kd5 Nd7 53. Ke6 Nc5+ 54. Kxf6 Nxb3 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.21"]
[Round "4.52"]
[White "Radziszewski, Leon"]
[Black "Wasilewski, Mateusz2"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "1679"]
[BlackElo "1655"]
[PlyCount "152"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Ostrow Wielkopolski"]
[BlackTeam "Gliwice Akademia Szachowa"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nf6 7. Qe2 d6 8. f4 g6 9. c4 Bg7 10. Be3 0-0 11. Kh1 b6 12. Nc3 Bb7 13. b4 Nbd7 14. f5 Rfe8 15. fxe6 fxe6 16. Rac1 Rac8 17. Nf3 Ng4 18. Bf4 Nge5 19. b5 Nxd3 20. Qxd3 Bxc3 21. Rxc3 e5 22. bxa6 Bxa6 23. Rfc1 exf4 24. Qd5+ Kg7 25. Ng5 Nc5 26. Qd4+ Re5 27. Rh3 Kg8 28. Rxh7 Qd8 29. Rh8+ Kxh8 30. Nf7+ Kg8 31. Nxd8 Rxd8 32. h3 Kf7 33. Rf1 Ke7 34. Rxf4 Ne6 35. Qxb6 Nxf4 36. Qxa6 Rd7 37. Qc6 Nd3 38. Kg1 Nc5 39. a4 Rxe4 40. a5 Rxc4 41. Qd5 Ra4 42. Qg5+ Kf7 43. Qd5+ Ke8 44. Qg8+ Ke7 45. Qg7+ Kd8 46. Qf8+ Kc7 47. Qa8 g5 48. Qa7+ Kd8 49. Qb6+ Ke7 50. Qb2 Rxa5 51. Qg7+ Kd8 52. Qxg5+ Kc7 53. Qf4 Ra1+ 54. Kh2 Ra4 55. Qc1 Rh4 56. Qa1 Ra4 57. Qc1 Rg7 58. Qh6 Re7 59. Qg5 Re2 60. Qh5 Raa2 61. Qf5 Rxg2+ 62. Kh1 Rh2+ 63. Kg1 Rag2+ 64. Kf1 Rf2+ 65. Qxf2 Rxf2+ 66. Kxf2 Kd7 67. Ke3 Ke6 68. h4 Nb7 69. Kd4 Kf6 70. Kd5 Kg6 71. Kc6 Kh5 72. Kd5 Kxh4 73. Kd4 Kg4 74. Kd3 Kf3 75. Kd2 Ke4 76. Kd1 Kd3 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.20"]
[Round "3.34"]
[White "Wolynski, Antoni"]
[Black "Radziszewski, Leon"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "1672"]
[BlackElo "1679"]
[PlyCount "92"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Czerwionka Leszczyny Skoczek"]
[BlackTeam "Ostrow Wielkopolski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Nf6 6. Nc3 Bb4 7. Bd3 d5 8. Nxc6 bxc6 9. e5 d4 10. exf6 dxc3 11. fxg7 cxb2+ 12. Ke2 Rg8 13. Be4 Ba6+ 14. Kf3 Qf6+ 15. Bf4 Qc3+ 16. Be3 bxa1Q 17. Qxa1 Qxa1 18. Rxa1 Rc8 19. Bd4 f5 20. Bd3 Rd8 21. Bf6 Bxd3 22. cxd3 Rxd3+ 23. Ke2 Rd2+ 24. Ke3 Kf7 25. Be5 Rd5 26. f4 Rxe5+ 27. fxe5 Rxg7 28. g3 Bc3 29. Rc1 Bxe5 30. Rxc6 Rg4 31. Ra6 Bd4+ 32. Kf3 Bb6 33. a4 Ke7 34. a5 Ra4 35. Rxb6 axb6 36. axb6 Rb4 37. h4 Rxb6 38. h5 e5 39. g4 Rb3+ 40. Kf2 fxg4 41. h6 Kf6 42. Ke2 Kf5 43. Kf2 Kf4 44. Kg1 Kf3 45. Kh1 Kg3 46. Kg1 Rb1# 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.19"]
[Round "2.28"]
[White "Radziszewski, Leon"]
[Black "Tucholski, Hubert"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1679"]
[BlackElo "1601"]
[PlyCount "82"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Ostrow Wielkopolski"]
[BlackTeam "Osielsko"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f4 exf4 9. Bxf4 Nc6 10. Qd2 Be7 11. 0-0-0 Ne5 12. h3 0-0 13. g4 b5 14. g5 b4 15. gxf6 bxc3 16. Qxc3 Bxf6 17. Qg3 Qc7 18. Kb1 Rfc8 19. Rc1 a5 20. Bg5 Bxg5 21. Qxg5 Nf3 22. Qe3 a4 23. Nd2 Nxd2+ 24. Qxd2 Rab8 25. a3 Qb6 26. c4 Rc7 27. Rh2 Qc6 28. Bd3 Rb3 29. c5 dxc5 30. Bc2 Rb8 31. Rg2 c4 32. Qc3 g6 33. Bd3 Rb3 34. Qe1 Rxd3 35. Rd2 Rxd2 36. Qxd2 Qxe4+ 37. Ka1 Qd5 38. Qc3 Rb7 39. h4 Rb3 40. Qc2 Qc5 41. Rd1 c3 0-1

[Event "POL-chT U20 2nd League"]
[Site "Sypniewo"]
[Date "2025.06.18"]
[Round "1.52"]
[White "Mikula, Nikodem"]
[Black "Radziszewski, Leon"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1554"]
[BlackElo "1679"]
[PlyCount "124"]
[EventDate "2025.06.18"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB27_2025"]
[SourceDate "2025.07.02"]
[SourceVersion "1"]
[SourceVersionDate "2025.07.02"]
[SourceQuality "1"]
[WhiteTeam "Krosno Urania"]
[BlackTeam "Ostrow Wielkopolski"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nc3 Nc6 3. f4 e6 4. Nf3 Nge7 5. g3 g6 6. Bg2 Bg7 7. 0-0 0-0 8. d3 d5 9. Qe2 d4 10. Nd1 Qc7 11. h3 b5 12. Nf2 Ba6 13. g4 Kh8 14. e5 Nd5 15. Ne4 c4 16. g5 cxd3 17. cxd3 Ncb4 18. Bd2 Qc2 19. Nxd4 Qxd3 20. Qxd3 Nxd3 21. b3 N3xf4 22. Nf6 Nxg2 23. Kxg2 Bb7 24. Kg3 Rfd8 25. Ba5 Nxf6 26. gxf6 Rxd4 27. fxg7+ Kxg7 28. Rac1 Be4 29. Rc7 Bf5 30. Rc5 a6 31. Rf3 Rd5 32. Rc6 Rxe5 33. Bc3 f6 34. Rc7+ Kh6 35. Bxe5 fxe5 36. Rc5 e4 37. Rf4 g5 38. Rf1 Rd8 39. Rc3 Kg6 40. Re3 Rd2 41. Rf2 Rd1 42. Kg2 h5 43. Rf1 Rd3 44. Rfe1 Kf6 45. Kf2 Bxh3 46. Rxe4 Bf5 47. R4e3 Rd4 48. Rh1 h4 49. a3 Rf4+ 50. Rf3 Rxf3+ 51. Kxf3 g4+ 52. Kf2 Kg5 53. Rg1 e5 54. Re1 e4 55. Kg2 g3 56. Re3 Kf4 57. Re2 h3+ 58. Kg1 e3 59. a4 h2+ 60. Kg2 Be4+ 61. Kh3 h1R+ 62. Rh2 Rxh2# 0-1

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.08"]
[Round "9"]
[White "Radziszewski, Leon"]
[Black "Jastrowicz, Jan"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "48"]
[EventDate "2022.05.04"]
[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. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Be3 Qxc6 7. Bxc5 Qxc5 8. Nc3 Nf6 9. Bd3 d6 10. 0-0 0-0 11. h3 Qg5 12. Qf3 h6 13. Rfe1 Bd7 14. Nd5 Nxd5 15. exd5 c6 16. dxc6 Bxc6 17. Be4 Bxe4 18. Rxe4 Rfe8 19. Rxe8+ Rxe8 20. Qxb7 a5 21. Rd1 Re6 22. Rd5 Re1+ 23. Kh2 Qf4+ 24. g3 Qxf2# 0-1

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.07"]
[Round "7"]
[White "Trzopek, Fabian"]
[Black "Radziszewski, Leon"]
[Result "0-1"]
[ECO "C44"]
[PlyCount "84"]
[EventDate "2022.05.04"]
[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. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7 8. Qh5+ g6 9. Qxc5 Kg8 10. Qc4+ Kg7 11. Qe2 d6 12. 0-0 Qe8 13. b3 d5 14. Re1 Qf7 15. Bb2 h5 16. c3 Bg4 17. Qf1 Kg8 18. cxd4 Nb4 19. Rc1 Re8 20. Nd2 dxe4 21. Rab1 Nxa2 22. Ra1 Nxc1 23. Bxc1 Ra8 24. Bb2 Rh7 25. Nxe4 Qxb3 26. Ng5 Rh6 27. Qe1 Qxb2 28. Qe6+ Bxe6 29. Kf1 Qxa1+ 30. Ke2 Qxd4 31. Nxe6 Qe4+ 32. Kd2 Qxe6 33. Kd3 a5 34. f4 a4 35. Kc3 a3 36. f5 gxf5 37. g4 hxg4 38. h4 gxh3 39. Kc2 Qe3 40. Kb1 Qd2 41. Ka1 h2 42. Kb1 h1Q# 0-1

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.07"]
[Round "8"]
[White "Yuzko, Pavlo"]
[Black "Radziszewski, Leon"]
[Result "1-0"]
[ECO "C54"]
[PlyCount "61"]
[EventDate "2022.05.04"]
[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. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 0-0 9. d5 Nb4 10. a3 Na6 11. e5 Re8 12. 0-0 Ng4 13. h3 Nxe5 14. Nxe5 Rxe5 15. Qf3 d6 16. Rae1 Rf5 17. Qd3 Nc5 18. Qg3 Bd7 19. b4 Na6 20. Bd3 Rxd5 21. Qf3 c6 22. Qe4 Bf5 23. Qe7 Bxd3 24. Qxb7 Bb5 25. Re7 Qf8 26. Rd1 Re8 27. Rxe8 Qxe8 28. Kh2 f6 29. Qxa7 Qe2 30. Qe3 Qxd1 31. Qe8# 1-0

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.06"]
[Round "5"]
[White "Lewinski, Leon"]
[Black "Radziszewski, Leon"]
[Result "1-0"]
[ECO "C50"]
[PlyCount "89"]
[EventDate "2022.05.04"]
[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. Bc4 Bc5 4. Nc3 Nf6 5. d3 0-0 6. Bg5 d6 7. Bxf6 Qxf6 8. Nd5 Qd8 9. 0-0 Bg4 10. c3 Bxf3 11. Qxf3 a6 12. a4 Ne7 13. Nxe7+ Qxe7 14. Rad1 b5 15. axb5 axb5 16. Bxb5 Ra2 17. b4 Bb6 18. d4 Ra3 19. d5 Rfa8 20. h3 R8a7 21. Qe2 Ra2 22. Rd2 R2a3 23. Rdd1 Rxc3 24. Ra1 Rca3 25. Rxa3 Rxa3 26. Qb2 Ra7 27. Rc1 Bd4 28. Qc2 Qd8 29. Bc6 h6 30. b5 Bc5 31. Qb2 Bd4 32. Qb4 Bc5 33. Qc4 Qh4 34. Qe2 Kh7 35. g3 Qxh3 36. Qf3 f6 37. Be8 Qc8 38. Bh5 Qh3 39. Bg4 Ra3 40. Qf5+ g6 41. Qd7+ Kg8 42. Bxh3 Ra2 43. Be6+ Kh8 44. Qe8+ Kh7 45. Qg8# 1-0

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.06"]
[Round "6"]
[White "Radziszewski, Leon"]
[Black "Meyer, Leonardo1"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "61"]
[EventDate "2022.05.04"]
[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. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nc3 Bc5 7. Bc4 0-0 8. 0-0 d6 9. h3 Be6 10. Ba6 d5 11. e5 Ne8 12. Bb7 Rb8 13. Bxc6 Rb4 14. Be3 Bxe3 15. fxe3 Rxb2 16. Qc1 Rb6 17. Bb5 Qg5 18. Bd3 Bxh3 19. Rf2 f6 20. e6 Rxe6 21. Nxd5 Qxd5 22. gxh3 Qg5+ 23. Rg2 Qc5 24. Rb1 Rxe3 25. Rf2 Rf3 26. Qe1 Qg5+ 27. Kf1 Re3 28. Qd1 Qg3 29. Bc4+ Kh8 30. Bd5 Qxh3+ 31. Bg2 1/2-1/2

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.05"]
[Round "3"]
[White "Lanowy, Michal"]
[Black "Radziszewski, Leon"]
[Result "0-1"]
[ECO "C68"]
[PlyCount "60"]
[EventDate "2022.05.04"]
[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. Bb5 a6 4. Bxc6 dxc6 5. Ng5 Qxg5 6. d3 Qxg2 7. Kd2 Qxf2+ 8. Kc3 Qd4+ 9. Kd2 Nf6 10. c3 Qc5 11. b4 Qf2+ 12. Qe2 Qh4 13. Kd1 Bg4 14. Qxg4 Qxg4+ 15. Ke1 Qf3 16. Rf1 Qg2 17. Rf2 Qh3 18. Na3 Ng4 19. Rf1 Be7 20. Ke2 Qxh2+ 21. Ke1 Bh4+ 22. Kd1 Qg2 23. Re1 Bxe1 24. Kxe1 0-0 25. Nc2 Qxc2 26. Bd2 Qxd3 27. Rc1 Rad8 28. Rd1 Qxe4+ 29. Kf1 Qf3+ 30. Ke1 Qf2# 0-1

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.05"]
[Round "4"]
[White "Radziszewski, Leon"]
[Black "Lukasz, Franciszek"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "46"]
[EventDate "2022.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. f4 d5 2. d4 Nf6 3. e3 Bf5 4. Nf3 Nc6 5. Bb5 a6 6. Bd3 Bg4 7. h3 Bd7 8. Nc3 e6 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 f5 12. Bd3 Qf6 13. c3 0-0-0 14. Be3 Bd6 15. Ne5 Be8 16. Nxc6 Bxc6 17. Rg1 Qh4+ 18. Bf2 Qxf4 19. g3 Qh6 20. Bf1 e5 21. dxe5 Bxe5 22. Qc2 Be4 23. Qb3 Qd2# 0-1

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.04"]
[Round "1"]
[White "Pisarski, Marek"]
[Black "Radziszewski, Leon"]
[Result "1-0"]
[ECO "D00"]
[PlyCount "39"]
[EventDate "2022.05.04"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. Nb5 c5 5. Nc7+ Ke7 6. Nxa8 c4 7. Nc7 Nc6 8. Nb5 a6 9. Nc3 Qa5 10. Qd2 Bd7 11. Nb1 Nb4 12. Kd1 Qa4 13. Nc3 Qa5 14. a3 Ke8 15. Na2 Ne4 16. Qe1 Be7 17. f3 Nf6 18. Nxb4 Bxb4 19. Qxb4 Qc7 20. Bxc7 1-0

[Event "POL-ch U08"]
[Site "Poland"]
[Date "2022.05.04"]
[Round "2"]
[White "Radziszewski, Leon"]
[Black "Kochanowski, Jakub"]
[Result "0-1"]
[ECO "B40"]
[PlyCount "68"]
[EventDate "2022.05.04"]
[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. Nf3 e6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd1 d5 6. exd5 Qxd5 7. Bd2 Bb4 8. a3 Bxd2+ 9. Nbxd2 Nf6 10. Bc4 Qd6 11. 0-0 0-0 12. Bb5 Rd8 13. Re1 Nd4 14. Nxd4 Qxd4 15. Re2 e5 16. c3 Qd6 17. h3 a6 18. Bc4 Nh5 19. Ba2 Nf4 20. Re1 Qxd2 21. Qa4 Bd7 22. Qb3 Be6 23. Qd1 Qxd1 24. Raxd1 Rxd1 25. Rxd1 Bxa2 26. Kf1 Bc4+ 27. Kg1 h5 28. Rd7 h4 29. Rxb7 Rd8 30. Kh2 Nxg2 31. Kxg2 Bd5+ 32. Kh2 Bxb7 33. c4 Rd1 34. c5 Rh1# 0-1

