[Event "W-ch WS/O/1539 email"]
[Site "ICCF email"]
[Date "2023.04.07"]
[Round "?"]
[White "Berdyga, Mariusz"]
[Black "Freire, Daniel J"]
[Result "1-0"]
[ECO "C01"]
[BlackElo "1801"]
[PlyCount "83"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 Nc6 6. Ne2 Bd6 7. Nd2 0-0 8. Nc4 Re8 9. 0-0 e5 10. Bxc6 bxc6 11. dxe5 Ba6 12. exd6 Bxc4 13. Re1 Qxd6 14. Ng3 Rxe1+ 15. Qxe1 Re8 16. Be3 h5 17. Qc3 Be6 18. Qd4 Qxd4 19. Bxd4 h4 20. Nf1 a5 21. Bxf6 gxf6 22. Ne3 c5 23. g4 Rb8 24. b3 Rd8 25. Rd1 Rxd1+ 26. Nxd1 Bxg4 27. Ne3 Bf3 28. Nc4 a4 29. bxa4 Kf8 30. a5 Ke7 31. a6 Kd8 32. a7 Kc8 33. Nd2 Bc6 34. Nb3 c4 35. Nc5 Kd8 36. f4 Ke7 37. Kf2 Kd6 38. Na4 Ba8 39. Ke3 Kc6 40. Nc3 Kc5 41. a4 Kb6 42. Nb5 1-0

[Event "W-ch WS/O/1539 email"]
[Site "ICCF email"]
[Date "2023.04.07"]
[Round "?"]
[White "Berdyga, Mariusz"]
[Black "Good, Benjamin"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "84"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5 gxf5 7. d3 Nge7 8. 0-0 0-0 9. Bf4 d5 10. exd5 exd5 11. Bb3 Be6 12. Qd2 a6 13. a3 c4 14. Ba2 d4 15. Ne2 c3 16. Qc1 cxb2 17. Qxb2 Bxa2 18. Qxa2 Nd5 19. Rae1 Re8 20. Bd2 Qd7 21. Nh4 Re5 22. Nf3 Re6 23. Ng3 Nce7 24. Rxe6 fxe6 25. Re1 Nc6 26. Qb3 Kh8 27. a4 Rg8 28. Nh5 e5 29. c3 e4 30. dxe4 fxe4 31. Rxe4 dxc3 32. Be1 Qf5 33. Ng3 Qf7 34. Ng5 Qd7 35. Nh5 Nd4 36. Qc4 c2 37. Nxg7 Ne3 38. Rxe3 Rc8 39. Qd3 Nf3+ 40. Nxf3 Qxd3 41. Rxd3 c1Q 42. Ne6 Re8 1/2-1/2

[Event "W-ch WS/O/1539 email"]
[Site "ICCF email"]
[Date "2023.04.07"]
[Round "?"]
[White "Berdyga, Mariusz"]
[Black "Muilwijk, Erwin"]
[Result "1-0"]
[ECO "C01"]
[BlackElo "1776"]
[PlyCount "85"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 c5 6. Ne2 Nc6 7. Be3 cxd4 8. Nxd4 Ne5 9. Nc3 Be7 10. Qe2 0-0 11. 0-0-0 Bd7 12. Bxb7 Rb8 13. Bf4 Qb6 14. Bxe5 Rxb7 15. Nb3 Bc6 16. Bd4 Qc7 17. Nc5 Bxc5 18. Bxc5 Rc8 19. Bd4 Nd5 20. Nxd5 Bxd5 21. Kb1 f6 22. b3 a5 23. Bb2 a4 24. Rd4 axb3 25. axb3 Rcb8 26. h4 Qf7 27. Rhd1 Qg6 28. R1d3 h5 29. Bc1 Qxg2 30. Kb2 Ra8 31. c4 Rba7 32. Kc3 Ra2 33. Bb2 Rc8 34. Kb4 Rb8+ 35. Kc3 Rc8 36. Rg3 Qh1 37. Qd1 Qxd1 38. Rxd1 Rc7 39. f4 Ra6 40. Kd2 Ra2 41. Kc2 Be4+ 42. Kc3 Kf7 43. Rdg1 1-0

[Event "W-ch WS/O/1539 email"]
[Site "ICCF email"]
[Date "2023.04.07"]
[Round "?"]
[White "Wilshusen, Horst"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "1198"]
[PlyCount "54"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. f4 d6 7. Nf3 Rb8 8. a4 Nge7 9. 0-0 0-0 10. Be3 Nd4 11. Qd2 b6 12. Ne2 Nxf3+ 13. Bxf3 Bxb2 14. Rab1 Bg7 15. c4 Bb7 16. Nc3 d5 17. Ne2 dxc4 18. dxc4 Qxd2 19. Bxd2 Rfd8 20. Be3 Ba6 21. Rfc1 Nc6 22. f5 Ne5 23. Bg2 Bxc4 24. Bf1 Bd3 25. fxe6 fxe6 26. Rb3 Nf3+ 27. Kf2 Nxh2 0-1

[Event "W-ch WS/O/1520 email"]
[Site "ICCF email"]
[Date "2023.02.13"]
[Round "?"]
[White "Berdyga, Mariusz"]
[Black "Cabrera Trujillo, Claudio Tomas"]
[Result "1-0"]
[ECO "C46"]
[BlackElo "1888"]
[PlyCount "83"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. Nd5 Bg7 6. Bg5 Nce7 7. Nxd4 c6 8. Nc3 h6 9. Be3 Nf6 10. Be2 h5 11. e5 Nfd5 12. Bg5 Nxc3 13. bxc3 Qa5 14. 0-0 Nd5 15. Nb5 0-0 16. c4 a6 17. Bd2 Qd8 18. Nd6 Bxe5 19. cxd5 Bxd6 20. Bc3 Re8 21. Bd3 a5 22. Bb2 Bf4 23. d6 b5 24. Bxg6 fxg6 25. Re1 Rxe1+ 26. Qxe1 Qf8 27. Qc3 Qh6 28. Re1 Bxd6 29. Qb3+ Kf8 30. Qf3+ Kg8 31. Re8+ Bf8 32. Rd8 d5 33. Qf6 d4 34. Qxc6 Qg5 35. Qd6 Qf5 36. Qxd4 Kf7 37. h4 Ra6 38. Qh8 Ke7 39. Rd3 Qg4 40. Bg7 Bxg7 41. Qxg7+ Ke8 42. Rd4 1-0

[Event "W-ch WS/O/1520 email"]
[Site "ICCF email"]
[Date "2023.02.13"]
[Round "?"]
[White "Berdyga, Mariusz"]
[Black "Kristensen, Benny"]
[Result "1-0"]
[ECO "B11"]
[BlackElo "1756"]
[PlyCount "17"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d4 Nf6 7. Bd3 dxe4 8. Nxe4 Qxd4 9. Be3 1-0

[Event "W-ch WS/O/1520 email"]
[Site "ICCF email"]
[Date "2023.02.13"]
[Round "?"]
[White "Berdyga, Mariusz"]
[Black "Probstfeld, Bernd"]
[Result "1/2-1/2"]
[ECO "B30"]
[PlyCount "52"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 e6 5. 0-0 a6 6. Bd3 Nxf3+ 7. Qxf3 Bd6 8. b3 Be5 9. Qh3 Qc7 10. Bb2 d6 11. Rae1 Bd7 12. Nd1 Bxb2 13. Nxb2 Ne7 14. f4 0-0-0 15. f5 g6 16. f6 Nc6 17. Qe3 h5 18. c3 Kb8 19. Be2 Ne5 20. h3 g5 21. Qxg5 Rdg8 22. Qe3 h4 23. d4 cxd4 24. cxd4 Rg3 25. Qd2 Nc6 26. Rf2 e5 1/2-1/2

[Event "W-ch WS/O/1520 email"]
[Site "ICCF email"]
[Date "2023.02.13"]
[Round "?"]
[White "Tevrucht, Robert"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "B48"]
[WhiteElo "1765"]
[PlyCount "58"]
[EventDate "2023.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. 0-0-0 Be7 9. f3 b5 10. g4 Nxd4 11. Bxd4 Bb7 12. Kb1 0-0 13. h4 b4 14. Na4 d5 15. e5 Nd7 16. Qe3 Rab8 17. b3 Bc6 18. Nb2 Bb5 19. a4 bxa3 20. Bxb5 Rxb5 21. Na4 Nc5 22. Nxc5 Bxc5 23. h5 Rc8 24. Rh2 a5 25. Ka2 h6 26. Rd3 Bxd4 27. Rxd4 Rc5 28. Qe2 Rc3 29. f4 Qa7 0-1

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.08.10"]
[Round "9"]
[White "Berdyga, Mariusz"]
[Black "Jaroszuk, Marcin"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "1407"]
[BlackElo "1507"]
[PlyCount "40"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Nf3 Bg4 6. Be2 0-0 7. 0-0 Nc6 8. d5 Bxf3 9. Bxf3 Ne5 10. Be2 h5 11. Bg5 Nh7 12. Be3 Nf6 13. Bg5 c6 14. Rc1 Re8 15. b4 Rc8 16. Qd2 Kh7 17. h3 Rb8 18. f4 Ned7 19. Qe3 Qb6 20. Qxb6 axb6 1/2-1/2

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.08.05"]
[Round "8"]
[White "Berdyga, Mariusz"]
[Black "Kozak, Jan"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "1407"]
[BlackElo "1315"]
[PlyCount "65"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 c5 7. Be3 cxd4 8. Nxd4 a6 9. Be2 Nbd7 10. Rc1 Nc5 11. Bf3 e5 12. Nb3 Nxb3 13. Qxb3 Be6 14. Nd5 Bxd5 15. cxd5 b5 16. 0-0 Nd7 17. Rc6 Nb8 18. Bb6 Qe7 19. Rc7 Nd7 20. Qc3 Qd8 21. Ba5 f5 22. Rc1 Qe8 23. Qc6 Nf6 24. Qxd6 fxe4 25. Re7 Rd8 26. Qe6+ Kh8 27. Rxe8 Rdxe8 28. Qxa6 exf3 29. d6 Re6 30. gxf3 Ne8 31. Rc6 e4 32. d7 Rxc6 33. Qxc6 1-0

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.08.03"]
[Round "10"]
[White "Kwiek, Janusz"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1417"]
[BlackElo "1407"]
[PlyCount "159"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. g3 f6 4. Bg2 e5 5. dxe5 fxe5 6. e4 d4 7. 0-0 Bg4 8. Qd3 Qd7 9. a3 Nf6 10. Re1 Be7 11. Nbd2 a6 12. b4 0-0 13. Ng5 Bd8 14. f3 Be6 15. Nb3 b6 16. Nxe6 Qxe6 17. Bb2 Be7 18. Rad1 Bd6 19. Re2 Ne7 20. Nd2 c5 21. bxc5 bxc5 22. Nc4 Rfb8 23. Nxd6 Rxb2 24. Qc4 Nfd5 25. exd5 Qxd6 26. Bh3 Kh8 27. Be6 Rf8 28. Kg2 Nf5 29. Bxf5 Rxf5 30. Rd3 Rb8 31. Rb3 Rbf8 32. Re4 h6 33. g4 R5f7 34. Qe2 Re7 35. Qc4 Rd8 36. Qd3 Qxd5 37. Qxa6 c4 38. Rb5 Qa8 39. Qxa8 Rxa8 40. Rc5 Rxa3 41. Rxc4 Ra2 42. Kg3 g5 43. Rcxd4 exd4 44. Rxe7 Rxc2 45. Rd7 Rd2 46. h4 gxh4+ 47. Kxh4 d3 48. Kh5 Kg8 49. Kxh6 Kf8 50. Kg5 Ke8 51. Rd4 Ke7 52. Kf4 Kf6 53. Ke3 Re2+ 54. Kxd3 Re1 55. Re4 Rf1 56. Ke3 Kg5 57. Re5+ Kf6 58. Rf5+ Kg6 59. Kf4 Rg1 60. Ra5 Rf1 61. Ra6+ Kg7 62. Ra3 Kg6 63. Ra6+ Kg7 64. Ra2 Kg6 65. Kg3 Kg5 66. f4+ Kg6 67. Ra6+ Kg7 68. f5 Kf7 69. Kh4 Rg1 70. Kg5 Rg2 71. Ra7+ Kf8 72. Kf6 Kg8 73. g5 Rb2 74. Ra6 Rb7 75. g6 Rb8 76. Kg5 Rf8 77. f6 Rd8 78. Ra7 Kh8 79. Kh6 Kg8 80. f7+ 1-0

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.07.26"]
[Round "2"]
[White "Berdyga, Mariusz"]
[Black "Kwiek, Janusz"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1407"]
[BlackElo "1417"]
[PlyCount "104"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. Nf3 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. g3 Bd7 7. Bg2 Nc6 8. 0-0 0-0 9. h3 Qc8 10. g4 Nxd4 11. Qxd4 Bc6 12. Bg5 Re8 13. Rae1 Nd7 14. Bxe7 Rxe7 15. b4 a6 16. a4 b6 17. Nd5 Bxd5 18. exd5 Qe8 19. Qc3 Nf6 20. Rxe7 Qxe7 21. Re1 Qd7 22. g5 Nh5 23. Re4 g6 24. Bf1 Qf5 25. Qe3 Qxd5 26. Bg2 Qd1+ 27. Kh2 Rf8 28. Rc4 c5 29. Bf3 Qf1 30. Be2 Qe1 31. Rh4 Ng7 32. Bxa6 Qxe3 33. fxe3 Re8 34. bxc5 dxc5 35. e4 Rd8 36. Rg4 Rd2+ 37. Rg2 Rd4 38. c4 Ne6 39. Rb2 Rxe4 40. Rxb6 Nxg5 41. Rc6 Ne6 42. Kg3 Kg7 43. Bb5 Re3+ 44. Kg2 Ra3 45. Ra6 g5 46. a5 h5 47. Bd7 Nf4+ 48. Kh2 h4 49. Ra8 Ra2+ 50. Kh1 Nd3 51. a6 Ne5 52. Bb5 Nf3 0-1

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.07.25"]
[Round "6"]
[White "Berdyga, Mariusz"]
[Black "Iller, Robert"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "1407"]
[BlackElo "1453"]
[PlyCount "45"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. h3 g6 6. 0-0 Bg7 7. d3 Nf6 8. Be3 b6 9. Qc1 h5 10. Nbd2 Ng4 11. hxg4 hxg4 12. Ng5 Qc7 13. g3 f6 14. d4 cxd4 15. Bxd4 e5 16. Be3 fxg5 17. Nc4 Bf6 18. Kg2 b5 19. Nb6 Rh2+ 20. Kxh2 Qh7+ 21. Kg1 Bb7 22. Nxa8 c5 23. Nc7+ 1-0

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.07.22"]
[Round "5"]
[White "Czubaj, Mariusz"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1101"]
[BlackElo "1407"]
[PlyCount "46"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qc2 cxd4 7. exd4 Bf5 8. Qb3 e6 9. Qxb6 axb6 10. Bb5 Be7 11. Bc7 Bxb1 12. Rxb1 Rxa2 13. Ne5 0-0 14. Bxc6 bxc6 15. Nxc6 Re8 16. Bxb6 Bd6 17. 0-0 Ra6 18. c4 Rxb6 19. c5 Rxc6 20. cxd6 Ne4 21. b4 Rxd6 22. Rfc1 g6 23. b5 Rb6 0-1

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.07.08"]
[Round "4"]
[White "Berdyga, Mariusz"]
[Black "Zawadzki, Wojciech"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "1407"]
[BlackElo "1367"]
[PlyCount "171"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Bg4 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. d5 Nxg3 12. fxg3 a5 13. Qc2 Na6 14. a3 Qb8 15. Ne1 Qa7+ 16. Kh1 Bxe2 17. Qxe2 Nc5 18. Nb5 Qb6 19. Nd3 Nb3 20. Rad1 Rad8 21. h4 c6 22. Nc3 Nd4 23. Qh5 f6 24. Ne2 Nxe2 25. Qxe2 Qb3 26. dxc6 bxc6 27. Rc1 a4 28. Rf3 Qb6 29. Nb4 Qc7 30. Qd1 c5 31. Nd5 Qb7 32. Rb1 Qa6 33. Rc3 Rd7 34. Qg4 Rb7 35. Qe6+ Kh8 36. Ne7 Rfb8 37. Rd3 Qa8 38. Qxd6 Rxb2 39. Rxb2 Rxb2 40. Qd8+ Qxd8 41. Rxd8+ Kh7 42. Ra8 gxh4 43. gxh4 Re2 44. Nf5 Rxe4 45. Ra7 Rg4 46. Kh2 h5 47. g3 Kg8 48. Ra8+ Kf7 49. Ra7+ Kf8 50. Ra8+ Kf7 51. Rxa4 Ke6 52. Ne3 Re4 53. Ra6+ Kf7 54. Nf5 Kg6 55. Ne7+ Kf7 56. Ra7 Bf8 57. Nd5+ Kg6 58. Nb6 Re2+ 59. Kg1 Kf5 60. Rf7 Bh6 61. Nd5 Kg4 62. Rxf6 Be3+ 63. Kf1 Ra2 64. Nxe3+ Kxg3 65. Ra6 Kf3 66. Nd1 e4 67. Rf6+ Kg3 68. Nc3 Rxa3 69. Nxe4+ Kxh4 70. Kf2 Kg4 71. Nxc5 Rc3 72. Rg6+ Kf5 73. Rg5+ Kf4 74. Ne6+ Ke4 75. c5 h4 76. Kg2 Rc2+ 77. Kh3 Rc1 78. Kxh4 Rh1+ 79. Kg4 Rg1+ 80. Kh4 Rxg5 81. Kxg5 Kd5 82. Kf6 Kc6 83. Ke7 Kb7 84. Kd7 Kb8 85. c6 Ka7 86. c7 1-0

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.07.06"]
[Round "3"]
[White "Jaroszuk, Marcin"]
[Black "Berdyga, Mariusz"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "1507"]
[BlackElo "1407"]
[PlyCount "45"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. 0-0 0-0 12. Rfc1 h6 13. h3 Rfc8 14. Nd2 a6 15. a3 Nd7 16. Ne2 Ne7 17. Rc3 Rxc3 18. Qxc3 Rc8 19. Qd3 Nb6 20. Rc1 Rxc1+ 21. Nxc1 Qc6 22. Qc3 Qxc3 23. bxc3 1/2-1/2

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.06.29"]
[Round "1"]
[White "Berdyga, Mariusz"]
[Black "Przybylik, Mariusz"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1407"]
[BlackElo "1086"]
[PlyCount "132"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[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 Bd7 4. f3 e6 5. e4 dxe4 6. fxe4 Bb4 7. Bd3 0-0 8. Nge2 c5 9. Bd6 Re8 10. dxc5 b6 11. cxb6 Qxb6 12. Bxb4 Qxb4 13. 0-0 Qxb2 14. Rb1 Qa3 15. Kh1 e5 16. Rb3 Qc5 17. Nd5 Nxd5 18. exd5 e4 19. Rc3 Qxd5 20. Bc4 Qxd1 21. Rxd1 Bg4 22. Bd5 Bxe2 23. Rd2 Na6 24. Bxa8 Rxa8 25. Rxe2 Rd8 26. g4 Re8 27. Rxe4 Rd8 28. Rc6 Nb8 29. Rd6 Rc8 30. c4 g6 31. c5 Nc6 32. Rd5 Kf8 33. Kg2 Rc7 34. Kg3 Ne7 35. Rd8+ Kg7 36. Rc4 Nc6 37. Rd6 Ne5 38. Rc2 Nc6 39. a3 Kf8 40. g5 Ke7 41. Re2+ Kf8 42. h4 Ne7 43. Rd8+ Kg7 44. Rc2 Nf5+ 45. Kh3 Rc6 46. Rd7 a6 47. a4 h6 48. Rb7 hxg5 49. hxg5 Ne3 50. Rb6 Rc7 51. Rc1 Nd5 52. Rxa6 Nb4 53. Ra5 Nc6 54. Rb5 Nd4 55. Rc4 Nc6 56. a5 Ne5 57. Rc2 f6 58. a6 Nc6 59. Rb7 Rxb7 60. axb7 fxg5 61. Rf2 Nb8 62. Kg4 Nc6 63. Kxg5 Nb8 64. Rf6 Nd7 65. Rc6 Kf8 66. b8Q+ Nxb8 1-0

[Event "Warsaw YMCA Summer-B 262nd"]
[Site "Warsaw"]
[Date "2022.06.29"]
[Round "7"]
[White "Kozak, Jan"]
[Black "Berdyga, Mariusz"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "1315"]
[BlackElo "1407"]
[PlyCount "44"]
[EventDate "2022.06.29"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 d5 3. e3 Bf5 4. c4 e6 5. Nf3 c5 6. cxd5 Nxd5 7. Bb5+ Nc6 8. Bxc6+ bxc6 9. d4 Qf6 10. Nbd2 Nb4 11. 0-0 Bd3 12. a3 Bxf1 13. Qxf1 Nd5 14. Qa6 Nb6 15. Nc4 Qd8 16. dxc5 Bxc5 17. Bxg7 Rg8 18. Bd4 Bxd4 19. Nxd4 Qd5 20. g3 Nxc4 21. bxc4 Qd7 22. Rb1 Qc8 1/2-1/2

[Event "Warsaw YMCA Autumn-C 222nd"]
[Site "Warsaw"]
[Date "2019.10.16"]
[Round "5"]
[White "Berdyga, Mariusz"]
[Black "Kwiek, Janusz"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1428"]
[BlackElo "1379"]
[PlyCount "54"]
[EventDate "2019.09.19"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f3 Bg7 5. Be3 0-0 6. Qd2 a5 7. Bh6 c5 8. Bxg7 Kxg7 9. 0-0-0 cxd4 10. Qxd4 Nc6 11. Qe3 Be6 12. Nd5 Bxd5 13. exd5 Nb4 14. Bc4 Qc7 15. Qb3 Rfc8 16. Bd3 Nbxd5 17. a3 a4 18. Qa2 Nf4 19. c3 Qc5 20. g3 Qe3+ 21. Kc2 Nxd3 22. Rxd3 Qf2+ 23. Rd2 Qf1 24. Qb1 Qc4 25. Ne2 Nd5 26. Re1 e5 27. Qd1 Ne3+ 0-1

[Event "Warsaw YMCA Autumn-C 222nd"]
[Site "Warsaw"]
[Date "2019.10.09"]
[Round "4"]
[White "Winogrodzki, Jozef"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "1415"]
[BlackElo "1428"]
[PlyCount "53"]
[EventDate "2019.09.19"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be2 Qc7 6. 0-0 Nf6 7. Nc3 a6 8. Be3 Bb4 9. Qd2 Nxe4 10. Qd3 Nxc3 11. bxc3 Ne5 12. Qe4 Bd6 13. f4 Ng6 14. Nf5 0-0 15. Nxd6 Qxd6 16. Rad1 Qc6 17. Qd3 Nh4 18. Bf3 Nxf3+ 19. Rxf3 f5 20. Bd4 Rf7 21. Rg3 Qe4 22. Qd2 b5 23. Re1 Qd5 24. Qe2 Qd6 25. Qh5 Bb7 26. Qh6 g6 27. Rxg6+ 1-0

[Event "Warsaw YMCA Autumn-C 222nd"]
[Site "Warsaw"]
[Date "2019.10.02"]
[Round "3"]
[White "Berdyga, Mariusz"]
[Black "Budny, Piotr"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1428"]
[BlackElo "1381"]
[PlyCount "61"]
[EventDate "2019.09.19"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. Nc3 d4 4. Ne2 c5 5. c3 Nc6 6. cxd4 cxd4 7. Qa4 Bc5 8. b4 Bxb4 9. Nexd4 Nge7 10. Bb5 Qa5 11. Ne5 Qxa4 12. Bxa4 Bd7 13. Nxd7 Kxd7 14. Rb1 Bd6 15. Nb5 Bc5 16. d4 Bb4+ 17. Ke2 a6 18. d5 exd5 19. exd5 axb5 20. dxc6+ Nxc6 21. Rd1+ Kc7 22. Bf4+ Kb6 23. Bb3 f6 24. Rd7 Rhe8+ 25. Kf1 g5 26. Bc7+ Ka6 27. a4 Re7 28. axb5+ Kxb5 29. Rd5+ Bc5 30. Bd6 Rd7 31. Rxc5+ 1-0

[Event "Warsaw YMCA Autumn-C 222nd"]
[Site "Warsaw"]
[Date "2019.09.25"]
[Round "1"]
[White "Szumigaj, Marcin"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "1433"]
[BlackElo "1428"]
[PlyCount "85"]
[EventDate "2019.09.19"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 195 Extra"]
[Source "ChessBase"]
[SourceDate "2020.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. Nc3 Bb4 5. Bg5 Bb7 6. e3 h6 7. Bxf6 Qxf6 8. Be2 c5 9. 0-0 Bxc3 10. bxc3 0-0 11. Rb1 d6 12. Qc2 Nd7 13. Nd2 e5 14. d5 Rfe8 15. Bd3 Qe7 16. Rbe1 Nf6 17. Ne4 Ba6 18. Nxf6+ Qxf6 19. f3 h5 20. Rf2 Re7 21. Ref1 Rae8 22. e4 h4 23. f4 g6 24. fxe5 Qxe5 25. Qd2 Kg7 26. Rf4 Qh5 27. Qf2 g5 28. Be2 Qg6 29. Rf6 Qxe4 30. Rxf7+ Rxf7 31. Qxf7+ Kh8 32. Qh5+ Kg8 33. Qxg5+ Kh8 34. Qh5+ Kg8 35. Qf7+ Kh8 36. Bd3 Qe3+ 37. Kh1 Qe7 38. Qh5+ Kg8 39. Qg6+ Kh8 40. Kg1 Bc8 41. Rf7 Qe3+ 42. Kh1 Qe1+ 43. Bf1 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.25"]
[Round "7"]
[White "Berdyga, Mariusz"]
[Black "Schellen, Sven"]
[Result "1-0"]
[ECO "B02"]
[WhiteElo "1348"]
[BlackElo "1855"]
[PlyCount "49"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. Nc3 Nb6 4. d4 d6 5. f4 dxe5 6. fxe5 Bf5 7. a4 a5 8. g4 Bg6 9. Bg2 Nc6 10. Nf3 e6 11. 0-0 Nb4 12. Ne1 c6 13. Ne4 Be7 14. c3 Na6 15. Nd3 h5 16. Nf4 Bxe4 17. Bxe4 hxg4 18. Qxg4 Qd7 19. Qxg7 0-0-0 20. Qxf7 Rdg8+ 21. Kh1 Nc7 22. Ng6 Rxg6 23. Qxg6 Nbd5 24. Rf7 Qd8 25. Bd2 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.25"]
[Round "6"]
[White "Markosyan, Aleksandr"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "1730"]
[BlackElo "1348"]
[PlyCount "143"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ndb5 Qb8 7. a4 a6 8. Na3 Nf6 9. Be3 Na5 10. f3 Bb4 11. Qd4 Nc6 12. Qc4 d5 13. exd5 Nxd5 14. Bd2 Qe5+ 15. Qe4 Bxc3 16. bxc3 Qxe4+ 17. fxe4 Nf6 18. Bd3 0-0 19. Nc4 Rd8 20. Bf4 e5 21. Bg3 Nd7 22. Ke2 f6 23. Bf2 Nf8 24. Nb6 Bg4+ 25. Ke3 Rab8 26. Rab1 Be6 27. Rb2 Nd7 28. Rhb1 Nc5 29. h3 Rd6 30. Ke2 Nxd3 31. cxd3 Rbd8 32. Rd2 Na5 33. d4 Nc4 34. Nxc4 Bxc4+ 35. Kf3 exd4 36. cxd4 b5 37. axb5 axb5 38. Ra1 b4 39. Ra4 Rb8 40. Bg3 Rdb6 41. Bxb8 Rxb8 42. Rb2 f5 43. exf5 Bd5+ 44. Kg3 b3 45. Ra5 Be4 46. Re5 Bc2 47. Kf3 Kf7 48. g4 Kf6 49. Ke3 Rc8 50. Rc5 Re8+ 51. Kd2 Re4 52. Rc4 Rf4 53. Ke3 Re4+ 54. Kf3 Re7 55. Rbxc2 bxc2 56. Rxc2 Kg5 57. Re2 Rd7 58. Ke4 Re7+ 59. Kd3 Rd7 60. Rf2 Kf6 61. h4 h6 62. Re2 h5 63. Re6+ Kf7 64. g5 Rd5 65. Ke4 Rb5 66. d5 Rb4+ 67. Ke5 Rxh4 68. d6 Ra4 69. Re7+ Kf8 70. Ke6 Re4+ 71. Kd7 Rc4 72. g6 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.24"]
[Round "5"]
[White "Berdyga, Mariusz"]
[Black "Staggat, Rolf"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "1348"]
[BlackElo "1639"]
[PlyCount "39"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nf6 6. Re1 Nc6 7. c4 e5 8. Nc3 Be7 9. d3 0-0 10. Nd5 Nxd5 11. cxd5 Nd4 12. Be3 Nxf3+ 13. Qxf3 f5 14. Qh3 Qc8 15. f4 exf4 16. Bxf4 g5 17. exf5 Rf7 18. Bg3 Qf8 19. Re6 Rxf5 20. Rxe7 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.24"]
[Round "4"]
[White "Haftmann, Rainer"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "1725"]
[BlackElo "1348"]
[PlyCount "47"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. a3 a6 7. Be3 b5 8. Nxc6 Qxc6 9. Be2 Bb7 10. Bf3 Qc4 11. Qd4 Nf6 12. Qxc4 bxc4 13. 0-0-0 Be7 14. Rd2 0-0 15. e5 Bxf3 16. gxf3 Nh5 17. Rxd7 Bd8 18. Rhd1 Ba5 19. Ne4 g6 20. Rb7 Rfb8 21. Rdd7 Rxb7 22. Rxb7 f5 23. exf6 Kf8 24. Bh6+ 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.23"]
[Round "3"]
[White "Berdyga, Mariusz"]
[Black "Freund, Stefan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1348"]
[BlackElo "1601"]
[PlyCount "89"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bd2 Qc7 7. Bc4 e6 8. Qe2 Be7 9. a4 a5 10. 0-0 0-0 11. Ne4 Nbd7 12. Neg5 Nb6 13. Bb3 h6 14. Ne4 Nxe4 15. Qxe4 Nd5 16. Ne5 Nf6 17. Qh4 Nh7 18. Qg4 Nf6 19. Qh3 Bd6 20. Rfe1 Bxe5 21. dxe5 Nh7 22. Qg3 Kh8 23. Re4 Qe7 24. Rg4 g5 25. h4 f5 26. exf6 Nxf6 27. Bc3 e5 28. Rc4 Be6 29. hxg5 hxg5 30. Bxe5 Bxc4 31. Bxc4 Rf7 32. Qxg5 Raf8 33. Bxf7 Qxf7 34. Ra3 Qg7 35. Qxg7+ Kxg7 36. Rf3 Kg6 37. Bxf6 Re8 38. Bc3 Re2 39. Bxa5 Rxc2 40. Rb3 Rc4 41. Rb4 Rc5 42. Bb6 Rc1+ 43. Kh2 Rc2 44. a5 Kf5 45. Be3 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.23"]
[Round "2"]
[White "Jess, Geralf"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "1729"]
[BlackElo "1348"]
[PlyCount "83"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Qc7 6. Be3 a6 7. Be2 Nf6 8. Qd2 Be7 9. f4 d6 10. h3 b5 11. Nxc6 Qxc6 12. Bf3 e5 13. Nd5 Nxd5 14. exd5 Bh4+ 15. Bf2 Bxf2+ 16. Qxf2 Qd7 17. fxe5 dxe5 18. Qc5 Bb7 19. 0-0-0 Rc8 20. Qe3 f6 21. Bg4 Qd6 22. Bxc8 Bxc8 23. Rd2 0-0 24. g4 Bb7 25. Re1 Re8 26. Qe4 Bc8 27. Re3 a5 28. Rc3 Bd7 29. Qe3 b4 30. Qc5 Qa6 31. Rf3 e4 32. Rf4 e3 33. Rd1 Qe2 34. Qd4 Rc8 35. Qe4 a4 36. Qd3 Qh2 37. Rxb4 f5 38. gxf5 Bxf5 39. Qxf5 Re8 40. Re4 Rxe4 41. Qxe4 a3 42. Qe8# 1-0

[Event "Wiesbaden op 31st"]
[Site "Wiesbaden"]
[Date "2019.08.22"]
[Round "1"]
[White "Berdyga, Mariusz"]
[Black "Kuehn, Matthias"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1348"]
[BlackElo "1939"]
[PlyCount "90"]
[EventDate "2019.08.22"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GER"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f3 Nc6 5. Be3 e5 6. d5 Nce7 7. g4 h6 8. Bd3 f5 9. gxf5 gxf5 10. f4 Nf6 11. fxe5 Ng4 12. Bd4 0-0 13. exf5 Nxe5 14. Bxe5 Bxe5 15. Qg4+ Bg7 16. Nge2 Nxf5 17. 0-0-0 Nd4 18. Qg6 Bf5 19. Bxf5 Nxf5 20. Nf4 Nh4 21. Qe6+ Kh8 22. Qg4 Qg5 23. Qxg5 hxg5 24. Ne6 Rf7 25. Nxg5 Bh6 26. Nce4 Rg8 27. Rhg1 Nf3 28. h4 Nxg1 29. Rxg1 Rf4 30. Kd1 Bxg5 31. Nxg5 Rg7 32. Ke2 Rxh4 33. Ke3 Rh2 34. Kd3 Rh5 35. Nf3 Rxg1 36. Nxg1 Rxd5+ 37. Kc3 Rh5 38. Ne2 Kg7 39. a4 Kf6 40. Nd4 Ke7 41. Nb5 a6 42. Nd4 Kd7 43. b4 Rh4 44. Nf5 Rf4 45. Ne3 a5 0-1

[Event "Eschborn op"]
[Site "Eschborn"]
[Date "2019.08.18"]
[Round "5.12"]
[White "Berdyga, Mariusz"]
[Black "Waffenschmidt, Joachim"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1305"]
[BlackElo "2042"]
[PlyCount "84"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. 0-0 Ngf6 6. Re1 g6 7. c3 Bg7 8. d4 0-0 9. h3 e6 10. Bg5 Qc7 11. Qd2 Rfe8 12. e5 dxe5 13. dxe5 Nd5 14. c4 N5b6 15. Qf4 f6 16. exf6 Qxf4 17. Bxf4 Bxf6 18. Be5 Nxe5 19. Nxe5 Rad8 20. Nc3 Rd4 21. b3 Nd7 22. Ng4 Rxg4 23. hxg4 Bxc3 24. Rad1 Bxe1 25. Rxd7 Rf8 26. f3 Rf7 27. Rd6 Re7 28. Kf1 Bg3 29. Rd8+ Kf7 30. Ke2 Kf6 31. Ke3 Ke5 32. Rd1 h5 33. gxh5 gxh5 34. Rd8 h4 35. Rd1 Rg7 36. Rd3 Bf4+ 37. Kf2 Bc1 38. Rd1 Bb2 39. Rd2 Bd4+ 40. Kf1 Kf4 41. Re2 Be3 42. g3+ Rxg3 0-1

[Event "Eschborn op"]
[Site "Eschborn"]
[Date "2019.08.18"]
[Round "4.21"]
[White "Herbold, Manfred"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C21"]
[WhiteElo "2011"]
[BlackElo "1305"]
[PlyCount "80"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 c5 4. c3 Qe7 5. Be2 Qxe4 6. 0-0 Be7 7. Re1 Nc6 8. Bc4 Qg4 9. h3 Qh5 10. Bf4 d5 11. Bb5 Bd7 12. Bxc6 bxc6 13. cxd4 Kf8 14. Qb3 Re8 15. Qb7 Nf6 16. Nbd2 Qf5 17. Bh2 h5 18. Re5 Qd3 19. Rae1 Be6 20. Qxc6 cxd4 21. Nb3 Rh6 22. Nbxd4 Bd7 23. Qb7 Bc8 24. Qb5 Ba6 25. Qa4 Qc4 26. Qa5 Bb4 27. Rxe8+ Nxe8 28. Qd8 Bxe1 29. Bf4 Qf1+ 30. Kh2 Rg6 31. Nh4 Rf6 32. Nhf5 Bxf2 33. Qe7+ Kg8 34. Qxe8+ Kh7 35. h4 Qg1+ 36. Kh3 Bxd4 37. Ne7 Qh1+ 38. Bh2 Rf3+ 39. gxf3 Qxf3+ 40. Bg3 Bf1+ 0-1

[Event "Eschborn op"]
[Site "Eschborn"]
[Date "2019.08.17"]
[Round "3.33"]
[White "Berdyga, Mariusz"]
[Black "Diehl, Stefan"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "1305"]
[BlackElo "1803"]
[PlyCount "83"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 dxe4 6. Nxe4 e6 7. Be2 Nd7 8. d4 Ngf6 9. Nxf6+ Nxf6 10. c3 Qb6 11. 0-0 h6 12. b3 Bd6 13. Rd1 Rd8 14. Be3 Bb8 15. g3 Nd5 16. Bd2 Qc7 17. c4 Nf6 18. Be3 Qe7 19. Rac1 0-0 20. Bd3 e5 21. dxe5 Qxe5 22. Qf5 Qxf5 23. Bxf5 Rfe8 24. Kf1 Rxd1+ 25. Rxd1 Bxg3 26. Bxa7 Bc7 27. Be3 g6 28. Bg4 h5 29. Bf3 Ra8 30. a4 Rd8 31. Bd4 Nd7 32. b4 Ra8 33. a5 Re8 34. Bc3 Ne5 35. Bxe5 Bxe5 36. Rd7 Rb8 37. b5 Bc3 38. a6 bxa6 39. bxa6 Rb1+ 40. Kg2 Ra1 41. a7 Kg7 42. Bxc6 1-0

[Event "Eschborn op"]
[Site "Eschborn"]
[Date "2019.08.17"]
[Round "2.22"]
[White "Ottenburg, Ralph"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "1892"]
[BlackElo "1305"]
[PlyCount "85"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 g6 4. Bg2 Bg7 5. Nge2 Nc6 6. d3 Nge7 7. 0-0 b6 8. Be3 d5 9. exd5 exd5 10. d4 c4 11. Qd2 Be6 12. Nf4 Qd7 13. Nxe6 Qxe6 14. Rae1 0-0 15. Bg5 Qd7 16. Bxe7 Nxe7 17. Nd1 Rad8 18. c3 Rfe8 19. Ne3 f5 20. f4 b5 21. Bf3 Qc6 22. Qg2 a5 23. Nxd5 Qd6 24. Nxe7+ Rxe7 25. Rxe7 Qxe7 26. Qe2 Qd6 27. Re1 Kf7 28. a4 Bxd4+ 29. cxd4 Qxd4+ 30. Kh1 b4 31. Qe7+ Kg8 32. Rd1 Qxd1+ 33. Bxd1 Rxd1+ 34. Kg2 Rc1 35. Qd8+ Kg7 36. Qxa5 c3 37. bxc3 b3 38. Qb4 Rc2+ 39. Kh3 b2 40. a5 Kh6 41. a6 b1Q 42. Qxb1 Rxc3 43. a7 1-0

[Event "Eschborn op"]
[Site "Eschborn"]
[Date "2019.08.16"]
[Round "1.38"]
[White "Berdyga, Mariusz"]
[Black "Grzeschniok, Anton"]
[Result "1-0"]
[ECO "C49"]
[WhiteElo "1305"]
[BlackElo "1842"]
[PlyCount "91"]
[EventDate "2019.08.16"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "GER"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. 0-0 d6 6. Nd5 Bd7 7. Bxc6 Bxc6 8. Nxb4 Bxe4 9. d3 Bg6 10. c3 Qd7 11. Bg5 0-0-0 12. Re1 h6 13. Bxf6 gxf6 14. Nd5 f5 15. a4 c6 16. Nb4 Bh7 17. a5 Rhg8 18. a6 b6 19. Kh1 Rg4 20. h3 Rg7 21. d4 e4 22. Nh4 d5 23. c4 dxc4 24. Rc1 b5 25. b3 Qd6 26. Nc2 c3 27. Ne3 Qf4 28. g3 Qxf2 29. Rc2 Qxg3 30. Rg2 Qxh3+ 31. Rh2 Qg3 32. Nhxf5 Bxf5 33. Nxf5 Qg5 34. Nxg7 Qxg7 35. Rxe4 c5 36. Qh5 f5 37. Qxf5+ Kb8 38. Qxc5 Rc8 39. Qxb5+ Ka8 40. Re8 Qc7 41. Rxc8+ Qxc8 42. Qd5+ Kb8 43. Qb7+ Qxb7+ 44. axb7 Kxb7 45. Rc2 Kc6 46. Rxc3+ 1-0

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.03.27"]
[Round "13"]
[White "Berdyga, Mariusz"]
[Black "Muck, Piotr"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1362"]
[BlackElo "1482"]
[PlyCount "60"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Nf6 5. dxc5 Qa5+ 6. Nc3 Qxc5 7. e4 d6 8. Qd2 e5 9. Be3 Qa5 10. a3 a6 11. Bc4 Be7 12. b4 Qc7 13. Bb3 0-0 14. Na4 Nbd7 15. Qf2 b5 16. Nb6 Nxb6 17. Bxb6 Qc3+ 18. Qd2 Qxa1+ 19. Kf2 Be6 20. h4 Bxb3 21. cxb3 Rac8 22. h5 h6 23. Be3 Kh7 24. g4 Qc3 25. Qe2 Qxb3 26. g5 Rc2 27. g6+ fxg6 28. hxg6+ Kh8 29. Bd2 Rxd2 30. Qxd2 Nxe4+ 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.03.20"]
[Round "12"]
[White "Dabrowska, Aleksandra"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1490"]
[BlackElo "1362"]
[PlyCount "45"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 Nc6 2. Nc3 e5 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 0-0 7. e3 d6 8. Qb3 Bxc3 9. Bxc3 Qe8 10. Nf3 Qg6 11. c5+ Kh8 12. cxd6 cxd6 13. 0-0 Rd8 14. Rac1 f4 15. Bd2 fxg3 16. fxg3 e4 17. Nh4 Qg4 18. Bc3 Ne5 19. dxe4 Nxe4 20. Rf4 Qe2 21. Rxe4 Nd3 22. Rf1 Nc5 23. Qf7 1-0

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.03.13"]
[Round "11"]
[White "Berdyga, Mariusz"]
[Black "Kwiek, Janusz"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1362"]
[BlackElo "1538"]
[PlyCount "84"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Nc3 g6 9. f3 Bg7 10. Be3 0-0 11. 0-0 Nxd4 12. Bxd4 Qc6 13. b3 b6 14. Rc1 Qb7 15. g4 h5 16. g5 Nd7 17. Bxg7 Kxg7 18. Qd4+ Kg8 19. Nd5 Nc5 20. f4 Rae8 21. f5 Qd7 22. Rc3 Na6 23. Rg3 Nc7 24. Nf4 e5 25. fxe6 Nxe6 26. Qd5 Nxf4 27. Rxf4 Re5 28. Qd4 Qe7 29. h4 Kh7 30. Rgf3 Kg8 31. Kf2 Re6 32. Rd3 Qc7 33. Rf6 Rfe8 34. Kf3 Qd7 35. Re3 Rxf6+ 36. gxf6 Qg4+ 37. Kf2 Qxh4+ 38. Kf1 Re6 39. a4 Rxf6+ 40. Ke2 Qf2+ 41. Kd3 Qf1+ 42. Kc3 Qa1+ 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.03.05"]
[Round "10"]
[White "Bartczak, Hanna"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1456"]
[BlackElo "1362"]
[PlyCount "71"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. Bf4 Bf5 4. e3 e6 5. Bb5 Bd6 6. Ne5 Nge7 7. 0-0 0-0 8. Nd3 Bxd3 9. Bxd3 Bxf4 10. exf4 Ng6 11. f5 exf5 12. Bxf5 Qf6 13. Bxg6 Qxg6 14. c3 Ne7 15. Nd2 Nf5 16. Nf3 Qb6 17. Qc2 Nd6 18. Ne5 Rad8 19. Rfe1 f6 20. Ng4 Rfe8 21. Re3 Nc4 22. Rh3 g6 23. b3 Qe6 24. Nxf6+ Qxf6 25. bxc4 dxc4 26. Re3 Rxe3 27. fxe3 c5 28. Rf1 Qe7 29. Qf2 b5 30. dxc5 Rd3 31. c6 Qxe3 32. c7 Qe8 33. Qf8+ Qxf8 34. Rxf8+ Kxf8 35. c8Q+ Kg7 36. Qb7+ 1-0

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.02.27"]
[Round "9"]
[White "Berdyga, Mariusz"]
[Black "Budrewicz, Henryk"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1362"]
[BlackElo "1412"]
[PlyCount "42"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d6 3. Nf3 e5 4. Bc4 Qc7 5. d4 Bg4 6. h3 Bh5 7. Be3 Nf6 8. d5 Be7 9. Qd3 a5 10. g4 Bg6 11. Nh4 b5 12. Nxb5 cxb5 13. Bxb5+ Nbd7 14. Nf5 Bxf5 15. gxf5 0-0 16. Rg1 Nc5 17. Bxc5 Qxc5 18. Bc6 Rab8 19. Qg3 g6 20. Qd3 Rxb2 21. Ba4 Qb4+ 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.02.20"]
[Round "8"]
[White "Szumigaj, Marcin"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1418"]
[BlackElo "1362"]
[PlyCount "78"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nc6 3. c4 Bg4 4. e3 e5 5. Be2 e4 6. Nfd2 Bxe2 7. Qxe2 Nb4 8. Na3 Nd3+ 9. Kf1 Bxa3 10. bxa3 Nf6 11. f3 c6 12. Kg1 Qa5 13. Nb3 Qc3 14. c5 exf3 15. gxf3 0-0 16. h3 Rfe8 17. Kh2 Nxc1 18. Raxc1 Rxe3 19. Qg2 Qd3 20. Rcd1 Qe2 21. Rhe1 Qxg2+ 22. Kxg2 Rae8 23. Kf2 R3e6 24. a4 Nh5 25. Rxe6 fxe6 26. a5 a6 27. Rb1 Nf4 28. h4 Re7 29. a3 e5 30. dxe5 Rxe5 31. Nd4 Nd3+ 32. Kg3 Nxc5 33. Rc1 Ne6 34. Nc2 c5 35. Kf2 d4 36. Rb1 Nd8 37. f4 Re7 38. Re1 Kf7 39. Kf3 Nc6 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.02.13"]
[Round "6"]
[White "Okurowski, Michal"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1558"]
[BlackElo "1362"]
[PlyCount "91"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. d3 Nc6 4. Nf3 d6 5. Be2 g6 6. Be3 Ng4 7. h3 Nxe3 8. fxe3 Bg7 9. 0-0 Qb6 10. Qb3 Qxb3 11. axb3 Bh6 12. Kf2 Be6 13. Nbd2 0-0 14. d4 cxd4 15. exd4 d5 16. e5 f6 17. exf6 Rxf6 18. Kg1 Raf8 19. b4 a6 20. Nb3 Be3+ 21. Kh1 g5 22. Nc5 Bc8 23. Nh2 Rf2 24. Bf3 e6 25. Rae1 Rxf1+ 26. Nxf1 Bf4 27. Nxe6 Bxe6 28. Rxe6 Rd8 29. g3 Bc1 30. Re2 Kg7 31. Rc2 Rf8 32. Kg2 g4 33. Bxg4 Bg5 34. Rf2 Rxf2+ 35. Kxf2 Bc1 36. Ne3 Ne7 37. Nd1 Kg6 38. h4 h5 39. Bf3 b6 40. Ke2 a5 41. bxa5 bxa5 42. Kd3 Nf5 43. Kc2 Bh6 44. Bxd5 Nxg3 45. Bc6 Nf5 46. Be8+ 1-0

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.02.07"]
[Round "7"]
[White "Berdyga, Mariusz"]
[Black "Wiktorowski, Janusz"]
[Result "0-1"]
[ECO "C66"]
[WhiteElo "1362"]
[BlackElo "1436"]
[PlyCount "115"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d4 exd4 6. Nxd4 Bd7 7. Nxc6 bxc6 8. Bc4 Be7 9. 0-0 0-0 10. Bg5 Be6 11. Bxe6 fxe6 12. f4 h6 13. Bh4 Rb8 14. e5 Nd5 15. Bxe7 Qxe7 16. Nxd5 cxd5 17. exd6 Qxd6 18. Qc1 Qb6+ 19. Kh1 Qxb2 20. Qe3 Qb6 21. Qd2 c5 22. h3 Qc6 23. c3 Rb6 24. Rf3 Qb7 25. Qd3 c4 26. Qe2 Rf6 27. Raf1 Rb2 28. Qe5 Qb8 29. Qd4 Rb1 30. f5 Rxf1+ 31. Rxf1 a5 32. Qd1 Qd6 33. Qh5 Qb8 34. g4 Qg3 35. Rg1 Qf3+ 36. Kh2 exf5 37. Qe8+ Kh7 38. Rg3 Qf2+ 39. Rg2 Qf4+ 40. Rg3 fxg4 41. hxg4 Qd2+ 42. Kh3 Rf2 43. g5 Rh2+ 44. Kg4 Qxg5+ 45. Kf3 Qf5+ 46. Ke3 Qd3+ 47. Kf4 Rf2+ 48. Kg4 Qe2+ 49. Qxe2 Rxe2 50. a4 Ra2 51. Kf5 Rd2 52. Ke5 Rd3 53. Rg2 Rxc3 54. Kxd5 Rc1 55. Kc5 Rb1 56. Rc2 Rb4 57. Rxc4 Rxc4+ 58. Kxc4 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.02.06"]
[Round "5"]
[White "Kuznik, Kamil"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "1436"]
[BlackElo "1362"]
[PlyCount "65"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Qc7 6. Bd3 Nf6 7. 0-0 a6 8. Nc3 Be7 9. f4 Nxd4 10. Bxd4 Bc5 11. Bxc5 Qxc5+ 12. Kh1 b5 13. e5 Nd5 14. Ne4 Qb6 15. Nd6+ Ke7 16. Qh5 g6 17. Qh4+ Kf8 18. Qh6+ Ke7 19. Bxg6 Rf8 20. Bxh7 Bb7 21. Qg5+ f6 22. Qg7+ Kd8 23. Qxf8+ Kc7 24. Qf7 Ne3 25. Rf2 Bxg2+ 26. Rxg2 Nxg2 27. Kxg2 f5 28. Bxf5 exf5 29. Qxf5 Rg8+ 30. Kh1 Qf2 31. Qe4 Rg4 32. Qb7+ Kd8 33. Qc8+ 1-0

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.01.30"]
[Round "4"]
[White "Berdyga, Mariusz"]
[Black "Derylo, Adam"]
[Result "0-1"]
[ECO "C77"]
[WhiteElo "1362"]
[BlackElo "1352"]
[PlyCount "103"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d3 a6 6. Ba4 Be7 7. Bg5 0-0 8. h3 b5 9. Bb3 Bb7 10. 0-0 Nd7 11. Be3 Nf6 12. a4 Na5 13. axb5 Nxb3 14. cxb3 axb5 15. Nxb5 c6 16. Rxa8 Qxa8 17. Na3 Nd7 18. d4 f6 19. b4 Ba6 20. b5 cxb5 21. Nxb5 Qb7 22. Nxd6 Bxd6 23. Re1 exd4 24. Nxd4 Be5 25. Ne6 Rb8 26. Qg4 Nf8 27. Nc5 Qc8 28. Qxc8 Bxc8 29. Nd3 Bxb2 30. f4 Ne6 31. Rb1 Be5 32. Rc1 Bd4 33. Kf2 Ba6 34. Rc6 Bxd3 35. Rxe6 Rb2+ 36. Kf3 Bxe3 37. Kxe3 Bf1 38. g3 Bxh3 39. Re8+ Kf7 40. Rd8 Bg4 41. f5 g6 42. Rd7+ Kg8 43. Rd8+ Kg7 44. fxg6 hxg6 45. Kf4 Be6 46. Rd3 Re2 47. Kf3 Re1 48. Rd6 Bb3 49. Rd7+ Kh6 50. Rd6 Kg5 51. Rb6 Bd1+ 52. Kf2 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.01.23"]
[Round "3"]
[White "Derylo, Maksymilian"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1423"]
[BlackElo "1362"]
[PlyCount "40"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 Nf6 4. Nf3 Bg4 5. e3 e5 6. dxe5 Nxe5 7. Qa4+ Bd7 8. Qd1 Nxf3+ 9. Qxf3 Bg4 10. Qf4 Bd6 11. Qg5 h6 12. Qxg7 Rh7 13. Qxh7 Nxh7 14. Nxd5 Bb4+ 15. Bd2 Bxd2+ 16. Kxd2 c6 17. Bd3 cxd5 18. Bxh7 dxc4+ 19. Kc1 Be2 20. f4 Rc8 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.01.16"]
[Round "2"]
[White "Berdyga, Mariusz"]
[Black "Jaroszuk, Marcin"]
[Result "1/2-1/2"]
[ECO "C80"]
[WhiteElo "1362"]
[BlackElo "1400"]
[PlyCount "31"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 exd4 7. Re1 d5 8. Nxd4 Bd6 9. Nxc6 Bxh2+ 10. Kxh2 Qh4+ 11. Kg1 Qxf2+ 12. Kh2 Qg3+ 13. Kg1 Qf2+ 14. Kh2 Qh4+ 15. Kg1 Qf2+ 16. Kh2 1/2-1/2

[Event "Mazowiec-chT op 1819"]
[Site "Warsaw"]
[Date "2019.01.13"]
[Round "5.9"]
[White "Berdyga, Mariusz"]
[Black "Choroszej, Aleksander"]
[Result "0-1"]
[ECO "B09"]
[WhiteElo "1335"]
[BlackElo "2087"]
[PlyCount "38"]
[EventDate "2018.12.02"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. f4 Nf6 5. Nf3 0-0 6. h4 c5 7. h5 Nxh5 8. f5 cxd4 9. Nxd4 e6 10. g4 Ng3 11. Rh2 d5 12. exd5 exf5 13. Bh6 Bxh6 14. Rxh6 Qg5 15. Rh2 fxg4 16. Qd3 Re8+ 17. Nde2 Re3 18. Qc4 Nd7 19. Qa4 Ne5 0-1

[Event "Mazowiec-chT op 1819"]
[Site "Warsaw"]
[Date "2019.01.13"]
[Round "6.21"]
[White "Berdyga, Mariusz"]
[Black "Szymczak, Rafal"]
[Result "0-1"]
[ECO "B17"]
[WhiteElo "1335"]
[BlackElo "1865"]
[PlyCount "72"]
[EventDate "2018.12.02"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8. Qe2 Bf5 9. d4 e6 10. 0-0 Be7 11. c3 h6 12. h3 0-0 13. Bf4 Re8 14. Rfe1 Nd5 15. Be5 Bf6 16. Bb3 Bxe5 17. Qxe5 Qc7 18. Qxc7 Nxc7 19. g4 Bh7 20. a4 a5 21. Ne5 Nd5 22. Bxd5 exd5 23. f3 f6 24. Nd7 Rad8 25. Nc5 Rxe1+ 26. Rxe1 b6 27. Ne6 Re8 28. Kf2 Kf7 29. Nc7 Rc8 30. Ne6 Bc2 31. f4 f5 32. Re2 Be4 33. gxf5 Bxf5 34. Nxg7 Kxg7 35. h4 Be4 36. Kg3 Kf6 0-1

[Event "Warsaw YMCA Winter-C 211st"]
[Site "Warsaw"]
[Date "2019.01.09"]
[Round "1"]
[White "Wyczesany, Dariusz"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "A03"]
[WhiteElo "1428"]
[BlackElo "1362"]
[PlyCount "83"]
[EventDate "2019.01.09"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nc6 3. g3 Bg4 4. Bg2 Nf6 5. 0-0 Qd7 6. d3 Bh3 7. Nbd2 Bxg2 8. Kxg2 h5 9. e4 e6 10. e5 Ng4 11. Nb3 Be7 12. Bd2 h4 13. h3 Nh6 14. g4 f5 15. g5 Nf7 16. Qe1 0-0-0 17. Nxh4 Rh5 18. Ng6 d4 19. Qe2 Rh7 20. Be1 Bxg5 21. fxg5 Nxg5 22. h4 Nf7 23. Bg3 Nh6 24. Bf4 Qf7 25. h5 Ng4 26. Rh1 Ne7 27. Nxe7+ Qxe7 28. Rh3 Rdh8 29. Rah1 Qe8 30. Nxd4 c5 31. Nf3 Rxh5 32. Rxh5 Rxh5 33. Rxh5 Qxh5 34. Qe1 b6 35. Qh4 Qf7 36. Ng5 Qb7+ 37. Kg3 Qe7 38. Qh8+ Kb7 39. Qg8 Ka6 40. Nxe6 Qd7 41. Nxg7 Qd4 42. Qc4+ 1-0

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.12.11"]
[Round "13"]
[White "Oles, Jan"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1231"]
[BlackElo "1278"]
[PlyCount "116"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Nc6 3. Nf3 Bf5 4. d4 Nf6 5. Nc3 e6 6. e3 Bb4 7. Nd2 0-0 8. Be2 Re8 9. f4 Bxc3 10. Bxc3 Ne4 11. Nxe4 Bxe4 12. 0-0 Qf6 13. Bd3 Qg6 14. Bxe4 Qxe4 15. Rf3 Ne7 16. Qd3 Qf5 17. Qxf5 Nxf5 18. g4 Nd6 19. Raf1 f5 20. g5 Ne4 21. Be1 a5 22. h4 g6 23. h5 Kg7 24. h6+ Kf7 25. a3 c5 26. dxc5 Nxc5 27. b4 axb4 28. Bxb4 Ne4 29. Rd1 Rec8 30. Rc1 Rc4 31. Rh3 Rd8 32. Rh2 e5 33. c3 exf4 34. exf4 d4 35. Rd1 d3 36. Ba5 Rd6 37. Rb2 b6 38. Bxb6 Nxc3 39. Rdd2 Na4 40. Be3 Nxb2 41. Rxb2 Rc7 42. Kf1 Ke6 43. a4 Ra6 44. Ra2 Rc2 45. Ra3 Rd6 46. Ra1 Re2 47. Bc5 Rc6 48. Bb4 Rh2 49. Kg1 Rhc2 50. Kf1 Rc1+ 51. Rxc1 Rxc1+ 52. Kf2 Kd5 53. Ke3 Kc4 54. Bd2 Ra1 55. a5 Ra2 56. Bc1 Rxa5 57. Bd2 Ra2 58. Bc1 Re2+ 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.12.04"]
[Round "12"]
[White "Berdyga, Mariusz"]
[Black "Matyszkiewicz, Radoslaw"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1278"]
[BlackElo "1315"]
[PlyCount "102"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d6 2. Nf3 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. 0-0 0-0 6. d3 Nc6 7. Be3 Ng4 8. Bg5 Kh8 9. h3 Nge5 10. Nxe5 Nxe5 11. Bb3 Nc6 12. a4 Nd4 13. Ba2 c6 14. Rc1 f5 15. exf5 Nxf5 16. Qe2 Be5 17. Qd2 d5 18. Rce1 Qd6 19. g4 Nd4 20. f4 Bf6 21. Bxf6+ Qxf6 22. Bxd5 cxd5 23. Nxd5 Qd6 24. Nxe7 Ne6 25. Qc3+ Qd4+ 26. Qxd4+ Nxd4 27. c3 Nc6 28. Nxc6 bxc6 29. Re7 Ba6 30. Rf3 Rfe8 31. Re4 Bb7 32. Rfe3 Rxe4 33. dxe4 Rf8 34. f5 Re8 35. Kf2 Re5 36. Kf3 g5 37. Rd3 Re7 38. b4 Kg7 39. Rd4 Kf6 40. h4 h6 41. Rd6+ Ke5 42. Rxh6 gxh4 43. f6 Rd7 44. g5 Rd3+ 45. Kg4 Rg3+ 46. Kxh4 Kf4 47. f7 Rg4+ 48. Kh3 Rg3+ 49. Kh2 Rxg5 50. f8Q+ Kg4 51. Qf6 Ba6 1-0

[Event "Mazowiec-chT op 1819"]
[Site "Warsaw"]
[Date "2018.12.02"]
[Round "1.6"]
[White "Berdyga, Mariusz"]
[Black "Rylski, Tadeusz"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1335"]
[BlackElo "1466"]
[PlyCount "86"]
[EventDate "2018.12.02"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 c5 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 Nc6 7. Nc3 Bb4 8. Bd2 Qd8 9. Bb5 Nge7 10. 0-0 0-0 11. a3 Ba5 12. Bg5 Bd7 13. d5 exd5 14. Nxd5 f6 15. Bf4 Ne5 16. Bxe5 Bxb5 17. Nxe7+ Kh8 18. Bd6 Bxf1 19. Kxf1 Qd7 20. Bc5 Qb5+ 21. Qe2 Qxc5 22. b4 Qc3 23. Rd1 Bb6 24. Nh4 Rfe8 25. Nhf5 Qe5 26. Qxe5 fxe5 27. Rd7 g6 28. Nd6 Rf8 29. f3 Rad8 30. Nxg6+ hxg6 31. Nf7+ Rxf7 32. Rxf7 Rd1+ 33. Ke2 Rg1 34. g4 Rg2+ 35. Kd3 Rxh2 36. Rxb7 Ra2 37. Ke4 Rxa3 38. g5 Re3+ 39. Kd5 Rxf3 40. Rb8+ Kg7 41. Rb7+ Rf7 42. Rb8 Rd7+ 43. Kxe5 Bc7+ 0-1

[Event "Mazowiec-chT op 1819"]
[Site "Warsaw"]
[Date "2018.12.02"]
[Round "2.6"]
[White "Sentowski, Sebastian"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1761"]
[BlackElo "1335"]
[PlyCount "85"]
[EventDate "2018.12.02"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. b3 d5 3. Bb2 Nc6 4. e3 Bf5 5. c4 Nb4 6. d3 e6 7. Nc3 Be7 8. a3 Na6 9. Be2 c5 10. 0-0 0-0 11. d4 Nc7 12. Rc1 h6 13. dxc5 dxc4 14. b4 a5 15. Bxc4 Ne4 16. Nd4 Nxc3 17. Bxc3 axb4 18. axb4 Be4 19. Ra1 Nd5 20. Qb3 Rc8 21. Bd2 b6 22. f3 Bg6 23. Bxd5 exd5 24. c6 Bd6 25. b5 Qh4 26. f4 Be4 27. Nf3 Qh5 28. Bb4 Rfd8 29. Bxd6 Rxd6 30. Ra7 Rg6 31. Qd1 Qh3 32. Rf2 Qg4 33. Qe2 f6 34. Nd4 Qh3 35. f5 Rg4 36. Kh1 Rh4 37. Nf3 Bxf3 38. gxf3 Qxf5 39. Qc2 Qxc2 40. Rxc2 Rb4 41. Rb7 Rxb5 42. c7 Kf7 43. Rb8 1-0

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.11.29"]
[Round "11"]
[White "Berdyga, Mariusz"]
[Black "Markiewicz, Janusz"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1278"]
[BlackElo "1170"]
[PlyCount "70"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 d6 5. Bb2 Nc6 6. Nf3 h6 7. Nc3 0-0 8. e3 Bf5 9. Qb3 Bxc3 10. Qxc3 Ne8 11. d4 f6 12. h4 a5 13. a3 Ne7 14. h5 d5 15. Be2 c6 16. Nh4 Bh7 17. g4 Nc8 18. cxd5 cxd5 19. a4 Rf7 20. Bd3 Rc7 21. Qd2 Bxd3 22. Qxd3 Ned6 23. Ba3 Ne4 24. Qb5 Nc3 25. Qd3 Ne4 26. Ng6 Ra6 27. f3 Rc3 28. Qb5 Rxe3+ 29. Kf1 Rb6 30. Ne7+ Nxe7 31. Bxe7 Nd2+ 32. Kf2 Rxe7 33. Qxa5 Nc4 34. Qc3 Rb2+ 35. Kg3 Qd6+ 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.11.20"]
[Round "10"]
[White "Zbijowski, Patryk"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "1080"]
[BlackElo "1278"]
[PlyCount "46"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Be2 Nc6 5. 0-0 Qc7 6. c4 d5 7. b3 cxd4 8. Nxd4 Nxd4 9. Qxd4 Bd6 10. f4 e5 11. Qd1 d4 12. fxe5 Bxe5 13. exd4 Bxh2+ 14. Kh1 0-0 15. Bb2 Ne4 16. Rf3 Bg4 17. Qf1 Bxf3 18. Qxf3 Ng3+ 19. Kxh2 Nxe2+ 20. Kh1 Rfe8 21. d5 Ng3+ 22. Kg1 Re1+ 23. Kf2 Rf1+ 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.11.13"]
[Round "9"]
[White "Berdyga, Mariusz"]
[Black "Jochym, Slawomir"]
[Result "1/2-1/2"]
[ECO "C46"]
[WhiteElo "1278"]
[BlackElo "1201"]
[PlyCount "74"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 a6 4. d4 exd4 5. Nxd4 Qf6 6. Nxc6 dxc6 7. Bd3 Bc5 8. 0-0 Ne7 9. e5 Qe6 10. Re1 Bd7 11. Qe2 0-0-0 12. Be3 Bb6 13. Bxb6 cxb6 14. Bxa6 b5 15. a4 bxa6 16. axb5 cxb5 17. Qe3 Qc6 18. Ne4 Be6 19. Nd6+ Kb8 20. Ra3 Nd5 21. Qd4 Rhg8 22. Rea1 Nc7 23. Rc3 Bc4 24. b3 Nd5 25. Qe4 Rxd6 26. exd6 Re8 27. Qf3 Qxd6 28. bxc4 Nxc3 29. Qxc3 Qe5 30. Qxe5+ Rxe5 31. cxb5 Rxb5 32. g3 Rb6 33. h4 Kb7 34. Re1 Re6 35. Rb1+ Rb6 36. Rd1 Kc7 37. Kf1 Rd6 1/2-1/2

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.11.06"]
[Round "8"]
[White "Wyczesany, Dariusz"]
[Black "Berdyga, Mariusz"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "1397"]
[BlackElo "1278"]
[PlyCount "112"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Nc6 4. Bg2 Bb4 5. Qb3 Nd4 6. Qa4 0-0 7. e3 Bxc3 8. bxc3 Nc6 9. Ne2 d6 10. Bxc6 bxc6 11. Qxc6 Bf5 12. f3 Bd3 13. e4 Qc8 14. Rf1 a5 15. Ba3 Ra6 16. Qa4 c5 17. Rf2 Qb7 18. Nc1 Bb1 19. d3 Rb6 20. Rd2 Rb8 21. Ke2 Qc8 22. Kf2 Qh3 23. Kg1 Qh6 24. Re2 Rb2 25. Bxb2 Rxb2 26. Qd1 Rxe2 27. Nxe2 Qe3+ 28. Kg2 Bxd3 29. Ng1 g5 30. Qe1 Qxe1 31. Rxe1 Bxc4 32. a3 Kf8 33. Nh3 h6 34. Nf2 Ke7 35. Rb1 Ke6 36. a4 Nd7 37. Rb7 d5 38. Ra7 d4 39. cxd4 exd4 40. Rxa5 d3 41. Nd1 Ke5 42. Nb2 Kd4 43. Nxc4 Kxc4 44. Kf1 Kc3 45. Ra6 Kc2 46. Rd6 Ne5 47. Rd5 c4 48. Rxe5 d2 49. Rd5 d1Q+ 50. Rxd1 Kxd1 51. a5 c3 52. a6 c2 53. a7 c1Q 54. a8Q Qc4+ 55. Kg2 Qe2+ 56. Kh3 Qxf3 1/2-1/2

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.10.30"]
[Round "7"]
[White "Berdyga, Mariusz"]
[Black "Borys, Marek"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1278"]
[BlackElo "1346"]
[PlyCount "134"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nf6 6. Re1 e6 7. c3 Be7 8. d4 Qc6 9. e5 dxe5 10. Nxe5 Qa6 11. Bg5 cxd4 12. cxd4 0-0 13. Nc3 Re8 14. Bxf6 Bxf6 15. Qh5 Bxe5 16. dxe5 Nc6 17. Ne4 Rf8 18. Re3 Nxe5 19. Rh3 h6 20. Qxe5 f6 21. Qh5 Qc4 22. Qg6 Rac8 23. Rc3 Qd4 24. Rxc8 Rxc8 25. Nc3 Rd8 26. Qe4 Qd7 27. g3 f5 28. Qe5 Qc6 29. Re1 Kf7 30. Nb5 Rd5 31. Qc7+ Qxc7 32. Nxc7 Rd7 33. Nb5 a6 34. Nc3 Rd2 35. Re2 Rd4 36. Kg2 Kf6 37. h4 g5 38. hxg5+ hxg5 39. Rc2 b5 40. Ne2 Ra4 41. b3 Re4 42. f3 Re3 43. Kf2 Rd3 44. f4 a5 45. fxg5+ Kxg5 46. Nf4 Rd6 47. Re2 Kf6 48. Nh5+ Kg6 49. Nf4+ Kf6 50. Kf3 a4 51. b4 e5 52. Ng2 Rd4 53. a3 e4+ 54. Kf4 Rd3 55. Re3 Rd2 56. g4 Rxg2 57. gxf5 Rf2+ 58. Kxe4 Rxf5 59. Kd4 Rg5 60. Rc3 Ke6 61. Rc5 Rg4+ 62. Kc3 Rg3+ 63. Kb2 Rg2+ 64. Rc2 Rxc2+ 65. Kxc2 Ke5 66. Kd3 Kd5 67. Ke3 Kc4 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.10.23"]
[Round "6"]
[White "Jaroszuk, Marcin"]
[Black "Berdyga, Mariusz"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "1341"]
[BlackElo "1278"]
[PlyCount "36"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 e6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 Na6 9. Bf8 Qxg2 10. Qd6 Bd7 11. Bf3 Qg5 12. Nh3 Qf6 13. 0-0-0 Qxf3 14. Qxd7+ Kxf8 15. Qd6+ Ke8 16. Qd7+ Kf8 17. Qd6+ Ke8 18. Qd7+ Kf8 1/2-1/2

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.10.16"]
[Round "5"]
[White "Berdyga, Mariusz"]
[Black "Derylo, Adam"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1278"]
[BlackElo "1371"]
[PlyCount "90"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c4 Ngf6 5. Nc3 g6 6. 0-0 Bg7 7. d4 cxd4 8. Nxd4 0-0 9. f3 Ne5 10. Qe2 Qc7 11. Nd5 Nxd5 12. cxd5 a6 13. Ba4 Qb6 14. Be3 Ng4 15. Nf5 Nxe3 16. Qxe3 Qxe3+ 17. Nxe3 Bxb2 18. Rab1 Bd4 19. Kf2 f5 20. Ke2 b5 21. Bc2 fxe4 22. Bxe4 Bd7 23. Nc2 Bc5 24. Nb4 a5 25. Nc6 Bxc6 26. dxc6 b4 27. Bd5+ Kg7 28. Be6 Kf6 29. Bd7 Bb6 30. Rfc1 Bc7 31. Rc4 Rab8 32. a3 bxa3 33. Rb7 d5 34. Ra4 Ke5 35. Rxc7 Rb2+ 36. Ke3 Kd6 37. Rc8 Rxc8 38. Bxc8 Kxc6 39. Rxa3 Rxg2 40. h3 Kb5 41. Bd7+ Kb6 42. Rb3+ Kc7 43. Be6 Kd6 44. Rb6+ Ke5 45. f4+ Kf6 1-0

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.10.09"]
[Round "4"]
[White "Kucharski, Jacek"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1315"]
[BlackElo "1278"]
[PlyCount "43"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nc6 3. e3 Nf6 4. c4 Bg4 5. Nbd2 e5 6. Be2 e4 7. Ne5 Bxe2 8. Nxc6 Bxd1 9. Nxd8 Rxd8 10. Kxd1 dxc4 11. Nxc4 c5 12. Ke2 cxd4 13. exd4 Rxd4 14. b3 Bb4 15. Be3 Rd3 16. Ne5 Rd5 17. Rac1 0-0 18. Nc4 b5 19. Bd2 Bxd2 20. Nxd2 Ng4 21. h3 Nxf2 22. Rc2 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.10.04"]
[Round "3"]
[White "Berdyga, Mariusz"]
[Black "Bialczynski, Michal"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "1278"]
[BlackElo "1317"]
[PlyCount "86"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 Ngf6 5. Re1 a6 6. Bf1 e6 7. c3 Be7 8. d4 e5 9. Bg5 h6 10. Bh4 g5 11. Bg3 Nh5 12. dxe5 Nxg3 13. exd6 Nxf1 14. dxe7 Qxe7 15. Rxf1 0-0 16. Nfd2 Ne5 17. Qe2 Bg4 18. f3 Be6 19. Na3 b5 20. c4 b4 21. Nc2 Rad8 22. Ne3 Nc6 23. Nd5 Bxd5 24. cxd5 Rxd5 25. Qf2 Rd3 26. Nb3 Rfd8 27. Rac1 Ne5 28. Rxc5 Rd1 29. Qg3 Rxf1+ 30. Kxf1 Nd3 31. Qc7 Rd7 32. Qc8+ Rd8 33. Qc7 Rd7 34. Qb8+ Kg7 35. Rc8 Nf4 36. Rg8+ Kf6 37. Qb6+ Rd6 38. Qe3 Rd1+ 39. Kf2 Nd3+ 40. Kg3 Qe5+ 41. Kh3 Nf4+ 42. Kg3 Nd5+ 43. f4 gxf4+ 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.09.25"]
[Round "2"]
[White "Szopa, Andrzej1111"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "1033"]
[BlackElo "1278"]
[PlyCount "62"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. a3 a5 5. d4 exd4 6. Nxd4 Bc5 7. Nxc6 bxc6 8. Bg5 Bxf2+ 9. Kxf2 Ng4+ 10. Kg1 Qxg5 11. Qd4 0-0 12. Nd1 c5 13. Qe4 Ra6 14. h4 Qh5 15. e3 Re6 16. Qf3 Rf6 17. Qe2 Re8 18. Rh3 d5 19. cxd5 Ba6 20. Qxa6 Rxa6 21. Bxa6 Qxd5 22. Rg3 h5 23. Be2 Qd6 24. Rh3 Qd2 25. Bxg4 Qe1+ 26. Kh2 hxg4 27. Rg3 Rd8 28. Rxg4 Rxd1 29. Rxd1 Qxd1 30. Rc4 Qd2 31. Rxc5 Qd6+ 0-1

[Event "Warsaw YMCA Autumn-D 208th"]
[Site "Warsaw"]
[Date "2018.09.18"]
[Round "1"]
[White "Berdyga, Mariusz"]
[Black "Przybylik, Mariusz"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "1278"]
[BlackElo "1125"]
[PlyCount "60"]
[EventDate "2018.09.18"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 a6 6. Bf1 Nf6 7. c3 d6 8. h3 0-0 9. d4 cxd4 10. cxd4 e6 11. Nc3 Re8 12. Be3 Nd7 13. Qd2 f6 14. d5 Nce5 15. Nd4 exd5 16. Nxd5 Nc5 17. Bf4 Ne6 18. Rac1 Nxd4 19. Qxd4 Bxh3 20. Nc7 Bxg2 21. Bxg2 f5 22. Bxe5 Bxe5 23. Qd5+ Kh8 24. Nxa8 Qxa8 25. Rc7 fxe4 26. Qf7 Re7 27. Rxe7 Qg8 28. Re8 Qxe8 29. Qxe8+ Kg7 30. Bxe4 Kh6 1-0

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.06.21"]
[Round "13"]
[White "Berdyga, Mariusz"]
[Black "Sloniewski, Jakub"]
[Result "1-0"]
[ECO "A82"]
[WhiteElo "1264"]
[BlackElo "1184"]
[PlyCount "41"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 d5 5. f3 Bf5 6. Bxf6 exf6 7. fxe4 dxe4 8. Qe2 Bb4 9. Qb5+ Nc6 10. Qxf5 Qxd4 11. Qe6+ Kf8 12. Nge2 Bxc3+ 13. bxc3 Qe3 14. Rd1 Re8 15. Qd7 Qb6 16. Nf4 Qe3+ 17. Ne2 Qb6 18. Qh3 Rd8 19. Rxd8+ Nxd8 20. Qd7 c5 21. Nf4 1-0

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.06.19"]
[Round "12"]
[White "Flig, Wojciech"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1334"]
[BlackElo "1264"]
[PlyCount "32"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Bc4 0-0 5. d3 d5 6. exd5 Nxd5 7. Bxd5 Qxd5 8. Bd2 Bxc3 9. Bxc3 Bg4 10. h3 Bxf3 11. gxf3 Nc6 12. Qe2 Nd4 13. Bxd4 exd4 14. 0-0-0 Rfe8 15. Qf1 Qxa2 16. Rg1 Qa1+ 0-1

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.06.12"]
[Round "11"]
[White "Berdyga, Mariusz"]
[Black "Borys, Marek"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1264"]
[BlackElo "1352"]
[PlyCount "79"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 a6 5. Nf3 Nf6 6. Nc3 e6 7. Bg5 Be7 8. Bd3 Qc7 9. Rc1 Qd8 10. 0-0 0-0 11. Qc2 h6 12. Bh4 Nc6 13. a3 Nh5 14. Bxe7 Qxe7 15. e5 Nf4 16. exd6 Qxd6 17. Ne4 Qd8 18. Rfd1 Nxd3 19. Rxd3 Qe7 20. Ne5 Re8 21. Nxc6 bxc6 22. Rg3 e5 23. Re1 Bf5 24. Qxc6 Bxe4 25. Qxe4 Rac8 26. h3 f6 27. d5 Rc5 28. b4 Rcc8 29. Qe3 Kh8 30. Rd1 Qd6 31. Qa7 Re7 32. Qe3 Rec7 33. Qe4 Kg8 34. Qf5 Re8 35. Qg6 Qd7 36. Qxf6 Qa4 37. Rd2 Rf8 38. Qxe5 Rc1+ 39. Kh2 Qb5 40. Qxg7# 1-0

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.05.29"]
[Round "9"]
[White "Berdyga, Mariusz"]
[Black "Rejniak, Wojciech"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1264"]
[BlackElo "1164"]
[PlyCount "70"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Bc4 Nf6 7. f3 0-0 8. Qd2 d5 9. exd5 Nxd5 10. Nxc6 bxc6 11. Bd4 Nb6 12. Bxg7 Kxg7 13. Bd3 Qd4 14. Qc3 c5 15. Qxd4+ cxd4 16. c4 dxc3 17. Nxc3 Be6 18. 0-0 Rfd8 19. Be4 Rac8 20. Rfd1 Nc4 21. b3 Nd6 22. Nd5 Nxe4 23. fxe4 Bxd5 24. Rxd5 Rxd5 25. exd5 Rc2 26. a4 Rd2 27. b4 Rxd5 28. b5 Kf6 29. Kf2 Ke6 30. Ke3 Kd6 31. Rc1 Rc5 32. Rd1+ Kc7 33. Kd4 Kb6 34. Rd2 e5+ 35. Kd3 Rd5+ 0-1

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.05.23"]
[Round "10"]
[White "Orszulak, Franciszek"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1264"]
[PlyCount "68"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. d3 d5 5. exd5 Nxd5 6. Bd2 Nxc3 7. Bxc3 Bxc3+ 8. bxc3 0-0 9. Be2 Nc6 10. 0-0 Re8 11. Re1 Bg4 12. h3 Bh5 13. Nd2 Bg6 14. Bf3 Qd7 15. Ne4 b6 16. Rb1 Rad8 17. Qc1 Ne7 18. Qa3 Nd5 19. c4 Nf4 20. Qxa7 f5 21. Qa3 fxe4 22. Bxe4 Re6 23. Qc3 Qe7 24. Kh1 Qg5 25. Bf3 Rf8 26. Rb5 Rfe8 27. Bd5 Kh8 28. g3 Nxd5 29. Rxd5 Bh5 30. Kg1 Bf3 31. Rb5 h5 32. d4 exd4 33. Qxf3 Rxe1+ 34. Kh2 R1e5 0-1

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.05.22"]
[Round "8"]
[White "Derylo, Adam"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "1336"]
[BlackElo "1264"]
[PlyCount "69"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e6 7. Bg2 Qb6 8. 0-0 Bd7 9. Re1 Nc6 10. Be3 Qc7 11. Qd2 Ng4 12. Bg5 h6 13. Nxc6 Bxc6 14. Bf4 Be7 15. Rad1 Rd8 16. Qe2 Nf6 17. e5 dxe5 18. Bxe5 Qb6 19. Rxd8+ Bxd8 20. Ne4 Nxe4 21. Bxe4 Bxe4 22. Qxe4 f6 23. Bd4 Qc6 24. Qxc6+ bxc6 25. Rxe6+ Kd7 26. Re3 Re8 27. Ra3 Re2 28. Rxa6 Rxc2 29. Ra7+ Ke6 30. Rxg7 c5 31. Bc3 c4 32. Rg4 Bb6 33. Re4+ Kd5 34. Rf4 Bd8 35. Rd4+ 1-0

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.05.17"]
[Round "7"]
[White "Derylo, Maksymilian"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "D07"]
[WhiteElo "1237"]
[BlackElo "1264"]
[PlyCount "54"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 e5 4. dxe5 d4 5. Nd5 Be6 6. Nf3 Bxd5 7. cxd5 Qxd5 8. e3 Bb4+ 9. Bd2 dxe3 10. fxe3 Bxd2+ 11. Qxd2 Qxd2+ 12. Kxd2 0-0-0+ 13. Kc3 Nh6 14. Bc4 Rhe8 15. e6 f6 16. Rad1 Ng4 17. Rxd8+ Nxd8 18. Nd4 Nxe3 19. Bb3 g6 20. Re1 Nxg2 21. Re4 Re7 22. Kb4 f5 23. Re5 Nf4 24. Kc4 Ndxe6 25. Kc3 Kd7 26. Nxe6 Nxe6 27. Bd5 Kd6 0-1

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.05.08"]
[Round "6"]
[White "Berdyga, Mariusz"]
[Black "Laszczuk, Zuzanna"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "1264"]
[BlackElo "1209"]
[PlyCount "98"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[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 d5 9. exd5 cxd5 10. Bg5 c6 11. Qf3 h6 12. Bxf6 Qxf6 13. Qxf6 gxf6 14. Na4 Bd7 15. c4 Kh8 16. c5 Rg8 17. g3 Bh3 18. Rfd1 Ba5 19. Be2 Rae8 20. Bh5 Rg7 21. Rd4 Re4 22. Rxe4 dxe4 23. Rd1 Bc7 24. Nc3 Bf5 25. Re1 Ba5 26. Re3 Bxc3 27. Rxc3 Be6 28. Ra3 Rg5 29. Be2 Rxc5 30. b3 Rc2 31. Kf1 Rc1+ 32. Kg2 Bd5 33. Bc4 Bxc4 34. bxc4 Rxc4 35. Rxa7 Kg7 36. a4 Rc2 37. Kf1 c5 38. a5 c4 39. a6 c3 40. Rc7 Ra2 41. Rxc3 Rxa6 42. Ke2 Ra2+ 43. Ke3 f5 44. h4 Kg6 45. Rc5 Ra3+ 46. Kf4 Rf3+ 47. Ke5 f6+ 48. Ke6 Rxf2 49. Rc3 Rf3 0-1

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.05.01"]
[Round "5"]
[White "Matyszkiewicz, Radoslaw"]
[Black "Berdyga, Mariusz"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1294"]
[BlackElo "1264"]
[PlyCount "77"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 Bg4 10. h3 Bxf3 11. gxf3 Re8 12. Bd3 Ne5 13. Be2 Qd7 14. f4 Ng6 15. Bg4 Qa4 16. Kb1 c6 17. Rhg1 d5 18. Bh5 Nh4 19. Bd4 Nf5 20. Be5 Bf8 21. Qd3 Qe4 22. Qxe4 dxe4 23. Rde1 Nd6 24. Rd1 Nc4 25. Rd7 Nxe5 26. fxe5 Re7 27. Rxe7 Bxe7 28. Re1 g6 29. Be2 Bh4 30. Rf1 Re8 31. f4 exf3 32. Bxf3 Rxe5 33. Rd1 Re3 34. Rd3 Re1+ 35. Rd1 Rxd1+ 36. Bxd1 h5 37. Bf3 f5 38. Kc1 Kf7 39. Kd1 1/2-1/2

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.04.25"]
[Round "4"]
[White "Berdyga, Mariusz"]
[Black "Kochanek, Tomasz"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1264"]
[BlackElo "1334"]
[PlyCount "51"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 e6 6. cxd4 Nc6 7. Bc4 Nb6 8. Bb5 Be7 9. 0-0 0-0 10. Nc3 a6 11. Bd3 d6 12. exd6 Qxd6 13. Re1 Rd8 14. Be3 Nd5 15. Bg5 Nxc3 16. bxc3 f6 17. Bh4 b5 18. Qc2 g6 19. Bg3 Qd5 20. Be4 Qd7 21. Bxg6 f5 22. Bh5 Na5 23. Ne5 Qa7 24. Qd2 Nc4 25. Bf7+ Kf8 26. Qh6# 1-0

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.04.17"]
[Round "3"]
[White "Oles, Jan"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1175"]
[BlackElo "1264"]
[PlyCount "63"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 c5 4. h3 Nc6 5. e3 e6 6. c4 b6 7. cxd5 exd5 8. Bb5 Bd7 9. d4 a6 10. Bd3 cxd4 11. Nxd4 Bb4+ 12. Nd2 Ne5 13. Qe2 Nxd3+ 14. Qxd3 Ne4 15. N4f3 Bb5 16. Qd4 Nxd2 17. Qxb4 Nxf3+ 18. gxf3 Qg5 19. 0-0-0 Rc8+ 20. Kb1 Qf5+ 21. e4 Qxf3 22. exd5 Bd3+ 23. Ka1 Rc2 24. Rhe1+ Re2 25. Rxe2+ Bxe2 26. Re1 Kd7 27. Qxb6 Qxd5 28. Qa7+ Kc6 29. Rc1+ Kb5 30. a4+ Kb4 31. Qe7+ Kxb3 32. Qa3# 1-0

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.04.10"]
[Round "2"]
[White "Berdyga, Mariusz"]
[Black "Jaroszuk, Marcin"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "1264"]
[BlackElo "1283"]
[PlyCount "92"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Nxe4 6. Nxe4 Qe7 7. Nxc6 Qxe4+ 8. Qe2 Qxe2+ 9. Bxe2 dxc6 10. Be3 Bd6 11. 0-0-0 Be6 12. Bd4 0-0 13. h4 Rfe8 14. h5 Bf4+ 15. Kb1 Bxa2+ 16. Kxa2 Rxe2 17. g3 Bd6 18. c4 c5 19. Be3 Be5 20. Rb1 Bd4 21. Rhe1 Rxe1 22. Rxe1 Re8 23. Bd2 Kf8 24. f3 Rxe1 25. Bxe1 Ke7 26. Kb3 f5 27. Kc2 Kf6 28. Bd2 c6 29. b3 Be5 30. f4 Bd4 31. Kd3 Ke6 32. Ke2 Bf6 33. Be3 Bd4 34. Bd2 Bf6 35. Be3 Be7 36. Kd3 h6 37. Kc3 Kf7 38. Kd3 g6 39. Ke2 gxh5 40. Kf3 Ke6 41. Bf2 Kd7 42. Ke3 Kc7 43. Kd3 b5 44. Kc3 Kd6 45. cxb5 cxb5 46. b4 Kd5 0-1

[Event "Warsaw YMCA Spring-D 201st"]
[Site "Warsaw"]
[Date "2018.04.05"]
[Round "1"]
[White "Szumigaj, Marcin"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1360"]
[BlackElo "1264"]
[PlyCount "95"]
[EventDate "2018.04.05"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 0-0 6. 0-0 d5 7. cxd5 Nxd5 8. Nxe5 Nxe5 9. Nxd5 Bd6 10. b3 c6 11. Nc3 Bg4 12. Bb2 Nd3 13. Qc2 Nxb2 14. Qxb2 Qa5 15. e3 Rfe8 16. a3 Re6 17. f3 Bh5 18. Ne4 Be7 19. b4 Qb6 20. Rac1 a5 21. Nc5 Bf6 22. Qb3 Re7 23. bxa5 Qxa5 24. Ne4 Be5 25. d4 Bb8 26. Rc5 Qxa3 27. Qxa3 Rxa3 28. Rxh5 Rxe3 29. Ra5 f5 30. Ra8 fxe4 31. Rxb8+ Kf7 32. fxe4+ Ke6 33. Kf2 Rd3 34. d5+ Ke5 35. dxc6 bxc6 36. Ke2 Rc3 37. Rf5+ Kd6 38. Rd8+ Kc7 39. Rd3 Rc2+ 40. Rd2 Rc1 41. Ke3 c5 42. Rfd5 Re6 43. h3 Re1+ 44. Kf3 R6xe4 45. Rxc5+ Kb6 46. Rc3 g5 47. Rb2+ Ka5 48. Rc5+ 1-0

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.08.11"]
[Round "11"]
[White "Berdyga, Mariusz"]
[Black "Sloniewska, Alicja"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1187"]
[BlackElo "1147"]
[PlyCount "157"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Be2 Nxd5 5. d4 g6 6. c4 Nb6 7. Nf3 Bg7 8. Be3 0-0 9. Qd2 Bg4 10. Nc3 c6 11. b3 N8d7 12. Bh6 Bxf3 13. Bxf3 Nf6 14. Bxg7 Kxg7 15. Rd1 Qd7 16. 0-0 Rad8 17. Rfe1 Rfe8 18. Qg5 Qc7 19. h3 Nc8 20. d5 cxd5 21. Nxd5 Nxd5 22. Rxd5 Rxd5 23. Qxd5 b6 24. Rd1 Nd6 25. a4 Rd8 26. Qe5+ Kg8 27. Re1 Rd7 28. h4 Nb7 29. Qxc7 Rxc7 30. Bxb7 Rxb7 31. Rd1 Kg7 32. f4 Kf6 33. g4 e5 34. Rd6+ Ke7 35. fxe5 Rd7 36. Rd5 Ke6 37. Rb5 Rd4 38. Kf2 Rxg4 39. a5 bxa5 40. Rxa5 Rxh4 41. Rxa7 Rh3 42. b4 Rc3 43. Rc7 Kxe5 44. b5 h5 45. b6 Rb3 46. c5 Kd5 47. b7 h4 48. c6 h3 49. Rc8 h2 50. Kg2 Rb1 51. Kxh2 f5 52. c7 Rxb7 53. Rd8+ Ke5 54. c8Q Rh7+ 55. Kg2 Kf4 56. Qc4+ Kg5 57. Qc3 Rh4 58. Rd5 Rg4+ 59. Kf2 Rf4+ 60. Ke2 Re4+ 61. Kd2 Rg4 62. Qe3+ Kh5 63. Qf3 Kh4 64. Rd8 Kg5 65. Rh8 Rd4+ 66. Kc3 Rg4 67. Qe3+ Rf4 68. Qe7+ Kg4 69. Rh4+ Kf3 70. Qb7+ Ke3 71. Qb6+ Kf3 72. Rxf4+ Kxf4 73. Qxg6 Ke4 74. Kd2 Kf4 75. Ke2 Ke4 76. Kf2 Kf4 77. Qg3+ Ke4 78. Qe3+ Kd5 79. Kf3 1-0

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.08.03"]
[Round "7"]
[White "Oles, Jan"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C20"]
[WhiteElo "1278"]
[BlackElo "1187"]
[PlyCount "36"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. e4 Bc5 3. Nf3 Nf6 4. Bd3 Nc6 5. Nc3 0-0 6. a3 a5 7. b3 d6 8. Nd5 Bg4 9. h3 Bxf3 10. Qxf3 Nxd5 11. exd5 Nd4 12. Qd1 e4 13. Bb1 Qg5 14. Kf1 Rae8 15. d3 Qf6 16. Ra2 e3 17. f3 e2+ 18. Rxe2 Nxe2 0-1

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.07.29"]
[Round "6"]
[White "Berdyga, Mariusz"]
[Black "Ber, Piotr"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "1187"]
[PlyCount "71"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 d6 3. Nf3 g6 4. Bc4 Bg7 5. d4 cxd4 6. cxd4 e6 7. 0-0 Ne7 8. Nc3 0-0 9. Be3 b6 10. Qd2 h6 11. Bxh6 Ba6 12. Bxa6 Nxa6 13. a3 d5 14. Bxg7 Kxg7 15. e5 Nf5 16. Rac1 Rc8 17. Qd3 Nb8 18. Ne2 Nh4 19. Rxc8 Nxf3+ 20. Qxf3 Qxc8 21. Rc1 Qd8 22. Rc3 Rh8 23. Qg3 Rh5 24. Nf4 Rh8 25. h3 Nd7 26. Rc6 Nf8 27. Qc3 Qg5 28. Qg3 Qd8 29. Nd3 Nh7 30. f4 g5 31. h4 Kf8 32. fxg5 Rg8 33. Qf4 Nxg5 34. hxg5 Rxg5 35. Rxe6 f5 36. exf6 1-0

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.07.28"]
[Round "10"]
[White "Papis, Mateusz"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C24"]
[BlackElo "1187"]
[PlyCount "118"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 d6 5. 0-0 Bg4 6. Re1 0-0 7. Be3 Bxe3 8. Rxe3 Re8 9. h3 Bh5 10. Nbd2 c6 11. c3 d5 12. Bb3 Qd6 13. Qc2 Nbd7 14. Rae1 dxe4 15. Nxe4 Nxe4 16. dxe4 Nc5 17. Rd1 Qc7 18. Bc4 b5 19. Be2 Bg6 20. Ng5 a5 21. b4 Nd7 22. Bg4 Nf6 23. Bf5 Red8 24. Bxg6 hxg6 25. Red3 axb4 26. Rxd8+ Rxd8 27. Rxd8+ Qxd8 28. Qb3 Qd7 29. cxb4 Nh5 30. Qa3 Qd8 31. h4 Nf4 32. Qb3 Qe8 33. Kh2 Ne2 34. Qe3 Nd4 35. f4 f6 36. Nf3 Nxf3+ 37. Qxf3 f5 38. exf5 gxf5 39. fxe5 Qxe5+ 40. g3 Qd5 41. Qe2 Kf8 42. a3 Qc4 43. Qf2 Qe4 44. Qc5+ Kg8 45. Qf2 g6 46. Qd2 Qd5 47. Qh6 Kf7 48. Qh7+ Kf6 49. Qh8+ Kf7 50. Qh7+ Kf6 51. Qh8+ Kf7 52. Qb2 Qf3 53. Qa2+ Qd5 54. Qb2 Qe6 55. Qf2 Qd6 56. Kh3 Kf6 57. Qf3 Qd5 58. g4 Qxf3+ 59. Kh2 Qxg4 0-1

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.07.26"]
[Round "2"]
[White "Berdyga, Mariusz"]
[Black "Szymanski, Pawel"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "1187"]
[BlackElo "1501"]
[PlyCount "42"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 d6 5. c3 Ne5 6. Bb3 d3 7. Bf4 d2+ 8. Nbxd2 Nd3+ 9. Kf1 Nxf4 10. e5 Be6 11. Ba4+ c6 12. g3 Bh3+ 13. Kg1 Ng6 14. Qe2 d5 15. c4 Be6 16. Rd1 Bb4 17. Ne4 N8e7 18. a3 Qa5 19. axb4 Qxa4 20. Nd6+ Kf8 21. Nxb7 Qxb4 0-1

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.07.20"]
[Round "3"]
[White "Koltuniak, Agnieszka"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "C27"]
[BlackElo "1187"]
[PlyCount "59"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Bb4 4. a3 Bxc3 5. dxc3 Nxe4 6. Qf3 Nf6 7. Ne2 d5 8. Bb3 c6 9. Qg3 Nbd7 10. 0-0 0-0 11. Bh6 Nh5 12. Qf3 Ndf6 13. Bd2 Bg4 14. Qe3 d4 15. cxd4 exd4 16. Nxd4 Re8 17. Qd3 c5 18. h3 Qxd4 19. Qxd4 cxd4 20. hxg4 Nxg4 21. Bd5 Ngf6 22. Bxb7 Rab8 23. Bc6 Re2 24. Bb4 Rxc2 25. Bf3 Nf4 26. Bd6 Rbxb2 27. Bxf4 d3 28. Rac1 h6 29. Rfd1 Rxf2 30. Be3 1-0

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.07.19"]
[Round "1"]
[White "Wolniewicz, Miroslaw"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "1377"]
[BlackElo "1187"]
[PlyCount "55"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 e6 3. e4 c5 4. Nf3 cxd4 5. Nxd4 Bb4 6. Qd3 Qc7 7. Bd2 Nc6 8. f3 a6 9. a3 Bc5 10. Nb3 Ba7 11. 0-0-0 b5 12. Be3 Ne5 13. Qe2 Bxe3+ 14. Qxe3 0-0 15. Qc5 Qxc5 16. Nxc5 Rd8 17. f4 Neg4 18. Rd2 d6 19. e5 Ne8 20. exd6 Rxd6 21. Rxd6 Nxd6 22. Be2 Ne3 23. Bf3 Rb8 24. b3 Bb7 25. Nxb7 Nxb7 26. Re1 Nf5 27. Rd1 Nh4 28. Bxb7 1-0

[Event "Warsaw YMCA Summer-B 173rd"]
[Site "Warsaw"]
[Date "2016.07.06"]
[Round "4"]
[White "Berdyga, Mariusz"]
[Black "Szumigaj, Marcin"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1187"]
[BlackElo "1279"]
[PlyCount "46"]
[EventDate "2016.07.01"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 e6 5. d4 Qc7 6. Bc4 Nb6 7. Bb3 d5 8. exd6 Bxd6 9. Na3 Bd7 10. Nc4 Nxc4 11. Bxc4 b5 12. dxc5 Bxc5 13. Be2 0-0 14. Bg5 Bc6 15. Qb3 Qb6 16. 0-0 a5 17. c4 a4 18. Qc2 f6 19. Bd2 Nd7 20. cxb5 Bxb5 21. Bxb5 Qxb5 22. Rac1 Rac8 23. Qc4 Bxf2+ 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.06.20"]
[Round "13"]
[White "Oles, Jan"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1200"]
[BlackElo "1216"]
[PlyCount "104"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. Nc3 Nc6 3. d4 d5 4. Bg5 e6 5. e4 dxe4 6. Nxe4 Be7 7. Bd3 0-0 8. h4 h6 9. Be3 Nb4 10. g4 Nxg4 11. Bd2 Nxd3+ 12. cxd3 e5 13. h5 exd4 14. Rg1 f5 15. Ng3 Qd5 16. Qb3 Qxb3 17. axb3 c5 18. Rg2 Re8 19. 0-0-0 Bf6 20. Rdg1 a5 21. Nf1 a4 22. bxa4 Rxa4 23. Kc2 Kh7 24. N1h2 b5 25. Nxg4 fxg4 26. Nh2 c4 27. dxc4 Bf5+ 28. Kb3 Rea8 29. cxb5 Be6+ 30. Kc2 Rc8+ 31. Kd3 Bf5+ 32. Ke2 Re8+ 33. Be3 dxe3 34. fxe3 Rb4 35. Nxg4 Rxb2+ 36. Kd1 Rxg2 37. Nxf6+ gxf6 38. Rxg2 Re6 39. Rb2 Rb6 40. Kd2 Bd7 41. e4 Rxb5 42. Rc2 Bg4 43. Rc6 Kg7 44. Rc7+ Kf8 45. Rc6 Ke7 46. Rc7+ Bd7 47. Ke3 Rxh5 48. Kf4 Rh4+ 49. Ke3 Kd6 50. Ra7 Bc6 51. Ra6 Rxe4+ 52. Kd3 Re7 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.06.13"]
[Round "11"]
[White "Berdyga, Mariusz"]
[Black "Rejniak, Zuzanna"]
[Result "0-1"]
[ECO "A38"]
[WhiteElo "1216"]
[BlackElo "1264"]
[PlyCount "49"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. g3 0-0 7. Bg2 Nc6 8. Be3 Ng4 9. Nxc6 dxc6 10. Bd2 Qb6 11. 0-0 Qxb2 12. Rb1 Qa3 13. Rb3 Qd6 14. Ne4 Qd8 15. Rd3 Qc7 16. Bb4 Be6 17. Qc2 Rfd8 18. Nc5 Bc8 19. Rxd8+ Qxd8 20. Rd1 Qc7 21. Qe4 Bf5 22. Qf3 Ne5 23. Qf4 Qb6 24. e4 Qxb4 25. exf5 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.06.06"]
[Round "10"]
[White "Rejniak, Wojciech"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "1172"]
[BlackElo "1216"]
[PlyCount "89"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. c4 b6 4. g3 Ba6 5. b3 Bb4+ 6. Nbd2 0-0 7. Bg2 c6 8. 0-0 d5 9. Ne5 Nfd7 10. cxd5 exd5 11. Ndf3 Re8 12. a3 Bd6 13. Nd3 Nf6 14. Qc2 Qe7 15. Re1 Ne4 16. e3 Qc7 17. b4 Nd7 18. Bb2 f6 19. Nd2 f5 20. f3 Nxd2 21. Qxd2 Nf6 22. Qc2 Bxd3 23. Qxd3 Qd7 24. Bh3 g6 25. e4 dxe4 26. fxe4 Rxe4 27. Rxe4 Nxe4 28. Qxe4 fxe4 29. Bxd7 e3 30. Re1 c5 31. b5 cxd4 32. Bxd4 Bxa3 33. Rxe3 Rd8 34. Re8+ Rxe8 35. Bxe8 Bd6 36. Bc6 Kf7 37. Kf2 h6 38. Be3 g5 39. Kf3 Kf6 40. Kg4 Bc5 41. Bxc5 bxc5 42. Bd5 Kg6 43. Be4+ Kg7 44. Kh5 c4 45. Bc2 1-0

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.05.29"]
[Round "9"]
[White "Berdyga, Mariusz"]
[Black "Ruta, Grzegorz"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "1216"]
[BlackElo "1018"]
[PlyCount "53"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 c5 4. Be3 Nc6 5. dxc5 d4 6. Qd3 dxe3 7. Qxe3 Ne5 8. Be2 Qa5 9. f4 Bxc5 10. Qg3 Nc6 11. Qxg7 Bd4 12. e5 Bxc3+ 13. Kf1 Bxb2 14. Rb1 Qxa2 15. Rd1 Bc3 16. Qxh8 Nce7 17. Qxh7 Bd7 18. Bh5 Bb5+ 19. Ne2 Bxe2+ 20. Kxe2 Qc4+ 21. Rd3 Ng6 22. Bxg6 fxg6 23. Qxg8+ Ke7 24. Qxa8 Qe4+ 25. Kd1 Qb4 26. Qd8+ Kf7 27. Rd7+ 1-0

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.05.24"]
[Round "12"]
[White "Berdyga, Mariusz"]
[Black "Flig, Wojciech"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "1216"]
[BlackElo "1520"]
[PlyCount "30"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Be6 7. d3 f6 8. a3 g5 9. Ne4 Be7 10. d4 g4 11. Nh4 Nxd4 12. Nc3 Nxc3 13. bxc3 Bb3 14. Qd3 Nc2+ 15. Kf1 Qxd3 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.05.23"]
[Round "8"]
[White "Majek, Waldemar"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1069"]
[BlackElo "1216"]
[PlyCount "61"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4 Be7 6. d4 Bg4 7. Nc3 Nxc3 8. bxc3 d5 9. cxd5 Qxd5 10. Be2 0-0 11. 0-0 c5 12. Ne5 Bxe2 13. Qxe2 cxd4 14. Nf3 Bf6 15. cxd4 Nc6 16. Be3 Rfe8 17. Rfd1 Rac8 18. h3 Re4 19. Rac1 Rd8 20. Qd3 Rde8 21. Rc5 Qxa2 22. d5 Nd8 23. Ng5 Bxg5 24. Bxg5 Re1+ 25. Rxe1 Rxe1+ 26. Kh2 Re8 27. Qb5 Kf8 28. Qd7 f6 29. Be3 Qa3 30. Rc8 Qe7 31. Bc5 1-0

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.05.20"]
[Round "7"]
[White "Berdyga, Mariusz"]
[Black "Podhajecki, Jerzy"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1216"]
[BlackElo "1149"]
[PlyCount "53"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 d5 2. cxd5 Nf6 3. Nf3 Nxd5 4. e4 Nb6 5. d4 Bg4 6. Be3 e6 7. a3 c5 8. Bb5+ Nc6 9. dxc5 Qxd1+ 10. Kxd1 Nd7 11. b4 Nde5 12. Nbd2 0-0-0 13. Ke2 a6 14. Bxc6 bxc6 15. h3 Bh5 16. Rhd1 f5 17. exf5 exf5 18. Bf4 Nd3 19. Bg5 Rd5 20. Nc4 Kb7 21. Rxd3 Rxd3 22. Kxd3 h6 23. Bf4 g5 24. Bd6 Bg7 25. Re1 Bf6 26. Re6 Bd8 27. Nfe5 1-0

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.05.09"]
[Round "6"]
[White "Moscicki, Slawomir"]
[Black "Berdyga, Mariusz"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "1284"]
[BlackElo "1216"]
[PlyCount "69"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. 0-0 Be7 8. Re1 Bf5 9. Be3 0-0 10. c4 c6 11. c5 Bg6 12. f3 Ng5 13. Bxg6 fxg6 14. Nc3 Ne6 15. Qd2 Qc7 16. Re2 Nf4 17. Bxf4 Rxf4 18. Rxe7 Rxd4 19. Rxc7 Rxd2 20. Re1 d4 21. Ne4 Rxb2 22. Nd6 d3 23. Rd1 d2 24. Kf2 Rd8 25. Ke2 Rc2 26. Rxd2 Rxc5 27. Rxb7 Re5+ 28. Ne4 Rde8 29. Rxa7 g5 30. h3 h5 31. Kf2 g4 32. hxg4 hxg4 33. Rad7 Rf8 34. Rd8 Rxe4 35. Rxf8+ 1-0

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.05.02"]
[Round "5"]
[White "Berdyga, Mariusz"]
[Black "Felicetti, Francesco"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1216"]
[BlackElo "1360"]
[PlyCount "73"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 d6 6. 0-0 0-0 7. a3 h6 8. b4 Rb8 9. d3 Bf5 10. Be3 Ng4 11. Bd2 Qd7 12. b5 Na5 13. Nd5 b6 14. Bxa5 bxa5 15. Qa4 Bd8 16. Nc3 Nf6 17. Qxa5 c6 18. Qb4 cxb5 19. cxb5 a6 20. a4 axb5 21. axb5 Bc7 22. Nh4 Be6 23. Bc6 Qd8 24. Rfb1 Bb6 25. Ra6 Ng4 26. e3 Qf6 27. Ne4 Qd8 28. Qxd6 Qc8 29. h3 Rd8 30. Qe7 Nxe3 31. Nd6 Rxd6 32. Qxd6 Bxh3 33. Rxb6 Rxb6 34. fxe3 g5 35. Ng2 f6 36. Bd5+ Kg7 37. Qxb6 1-0

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.04.29"]
[Round "4"]
[White "Ber, Piotr"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "A46"]
[BlackElo "1216"]
[PlyCount "60"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. Nf3 e6 4. e3 Nc6 5. c3 Qb6 6. Qc2 d5 7. Bd3 c4 8. Be2 Be7 9. Nbd2 0-0 10. 0-0 Rd8 11. Rfe1 h6 12. h3 Bd6 13. Ne5 Qc7 14. Ndf3 Ne4 15. Nxc6 bxc6 16. Ne5 f6 17. Ng6 Bxf4 18. exf4 c5 19. f3 Ng3 20. Kh2 Nh5 21. g3 Rb8 22. Qd2 Qf7 23. g4 Qxg6 24. gxh5 Qxh5 25. dxc5 e5 26. Bxc4 Qxh3+ 27. Kg1 Qg3+ 28. Kf1 Bh3+ 29. Ke2 dxc4 30. Qc2 Qg2+ 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.04.22"]
[Round "3"]
[White "Berdyga, Mariusz"]
[Black "Szopa, Andrzej"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "1216"]
[BlackElo "1109"]
[PlyCount "79"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 a6 4. Nxe5 Bc5 5. d4 Ba7 6. Bg5 d6 7. Nf3 c6 8. e3 0-0 9. Bd3 Bg4 10. 0-0 Nbd7 11. Ne4 d5 12. cxd5 cxd5 13. Nc3 h6 14. Bh4 g5 15. Bg3 Bb8 16. Bxb8 Qxb8 17. Be2 Kh8 18. Qb3 Qd6 19. Rac1 b5 20. Nd2 b4 21. Nb5 axb5 22. Bxb5 Rab8 23. Rc6 Qe7 24. Ba4 Nb6 25. Bb5 Bd7 26. Rc5 Bxb5 27. Rxb5 Rfc8 28. Rxb4 Qd6 29. Nf3 Nbd7 30. Rxb8 Rxb8 31. Qc2 Ne4 32. a4 Qb4 33. Qc7 Rb7 34. Qc8+ Kg7 35. Rb1 Ndf6 36. a5 Ra7 37. a6 Qb6 38. Ne5 Rxa6 39. f3 Nd6 40. Nd3 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.04.11"]
[Round "2"]
[White "Matyszkiewicz, Radoslaw"]
[Black "Berdyga, Mariusz"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1274"]
[BlackElo "1216"]
[PlyCount "105"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. g3 Be7 7. Bg2 Bg4 8. h3 Bxf3 9. Qxf3 d5 10. c4 c6 11. cxd5 Bb4+ 12. Nc3 Qe7+ 13. Kd1 Bxc3 14. bxc3 0-0 15. dxc6 Nxc6 16. Re1 Qc5 17. d4 Nxd4 18. Qe3 Qh5+ 19. g4 Nxg4 20. hxg4 Qxg4+ 21. f3 Qxg2 22. cxd4 Rac8 23. Qe2 Qh3 24. Rb1 Qd7 25. Be3 Rfe8 26. Qb5 Qxb5 27. Rxb5 Rc3 28. Rxb7 h5 29. Bd2 Rxe1+ 30. Kxe1 Rd3 31. Rxa7 Rxd4 32. a4 h4 33. Be3 Rd3 34. Rc7 Rxe3+ 35. Kf2 Ra3 36. Rc4 g5 37. Kg2 Kg7 38. Rc5 Kg6 39. a5 h3+ 40. Kg3 Kh5 41. Rf5 Kg6 42. Kg4 f6 43. Rd5 h2 44. Rd1 Rxa5 45. Kg3 Ra2 46. Re1 Kf5 47. Rc1 Re2 48. Rd1 Re3 49. Rf1 g4 50. Kxh2 Rxf3 51. Rxf3+ gxf3 52. Kg3 Ke4 53. Kf2 0-1

[Event "Warsaw YMCA Spring-E 171th"]
[Site "Warsaw"]
[Date "2016.04.04"]
[Round "1"]
[White "Berdyga, Mariusz"]
[Black "Markiewicz, Janusz"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "1216"]
[BlackElo "1303"]
[PlyCount "76"]
[EventDate "2016.04.04"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 Qe7 5. Qc2 d5 6. cxd5 Bf5 7. Nb5 Nxd5 8. h4 c6 9. Nd4 Bg6 10. e3 h6 11. Nh3 Nd7 12. g3 Ne5 13. Be2 Nd3+ 14. Bxd3 exd3 15. Qb3 Nb6 16. Nf4 Bh7 17. Nxd3 Qe4 18. f3 Qxd3 19. Qxd3 Bxd3 20. e4 0-0-0 21. Nf5 g6 22. Ne3 Bg7 23. a4 Nc4 24. Nxc4 Bxc4 25. Ra3 Rd3 26. Rxd3 Bxd3 27. Kf2 Bd4+ 28. Kg2 g5 29. h5 f5 30. Re1 fxe4 31. b4 exf3+ 32. Kxf3 Rf8+ 33. Kg2 Rf2+ 34. Kh1 Kd7 35. b5 Re2 36. bxc6+ bxc6 37. Rxe2 Bxe2 38. Kg2 Ke6 0-1

