[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "12"]
[White "Leszczewicz, Karol"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1588"]
[BlackElo "1793"]
[PlyCount "106"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 9. Bc4 b5 10. Bd5 Rc8 11. Bxc6+ Rxc6 12. Nd5 Bxd5 13. Bxf6 Qa5+ 14. c3 Bxe4 15. Qg4 Bg6 16. Bg5 d5 17. Nb1 Bxb1 18. Rxb1 Qxa2 19. 0-0 Qc4 20. Qg3 Bd6 21. f4 f6 22. fxe5 Bxe5 23. Bf4 Bxf4 24. Rxf4 Qc5+ 25. Kh1 0-0 26. Re1 Rd8 27. Qd3 Qf8 28. Rh4 g6 29. Qh3 Qf7 30. Rf4 Rc4 31. Rf2 Re4 32. Ref1 d4 33. Qd3 Re3 34. Qd2 f5 35. cxd4 Re4 36. Qa5 Rd6 37. Rd2 Qc4 38. Rfd1 Rexd4 39. Rxd4 Rxd4 40. Re1 Qb4 41. Re8+ Kf7 42. Qxb4 Rxb4 43. Re2 Re4 44. Rxe4 fxe4 45. Kg1 Ke6 46. Kf2 Ke5 47. Ke3 a5 48. g3 g5 49. h3 a4 50. Ke2 Kd4 51. Kd2 e3+ 52. Ke2 Ke4 53. g4 b4 0-1

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "8"]
[White "Matyszkiewicz, Wiktor"]
[Black "Leszczewicz, Karol"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1793"]
[BlackElo "1588"]
[PlyCount "155"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

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 0-0 11. 0-0 Bg4 12. f3 Bh5 13. Bg5 Qb6+ 14. Kh1 Ne4 15. Nxe4 dxe4 16. Bxe4 Qxb2 17. Rb1 Qxa3 18. Rxb7 Qa6 19. Rd7 Bg6 20. Bxg6 hxg6 21. f4 Rae8 22. Rd6 Qc4 23. h3 Ne7 24. g4 Qe4+ 25. Kh2 Nc8 26. Rd2 Nb6 27. Rff2 Qe1 28. Qf3 Re3 29. Qg2 Nc4 30. Rd7 Rfe8 31. Bh4 Re2 32. Rxa7 Rxf2 33. Bxf2 Qc1 34. Ra8 Qxf4+ 35. Bg3 Qe3 36. Rxe8+ Qxe8 37. Qf3 Qe6 38. Qd3 Kh8 39. Kg2 Kg8 40. Bf4 Kh7 41. Kf2 Qb6+ 42. Kf3 Qc6+ 43. Qe4 Qa4 44. h4 Qa3+ 45. Kg2 Nd6 46. Qc6 Nf5 47. gxf5 gxf5 48. Qd5 Qa6 49. Qxf5+ Kg8 50. Qe4 Qa2 51. Kh3 Qb1 52. Bg3 Qf1+ 53. Kh2 Qb1 54. Qe8+ Kh7 55. Qe2 Qa2 56. Kh3 Kg8 57. Qe8+ Kh7 58. Qc6 Qb1 59. c4 Qf1+ 60. Kh2 Qe2+ 61. Kg1 Qd1+ 62. Kg2 Qe2+ 63. Bf2 Qg4+ 64. Kh2 Qf4+ 65. Bg3 Qd2+ 66. Qg2 Qc3 67. Qe2 f5 68. Be5 Qc1 69. Qg2 Qh6 70. Qxg7+ Qxg7 71. Bxg7 Kxg7 72. c5 Kf6 73. h5 Ke5 74. h6 Kd5 75. h7 Kxc5 76. h8Q Kd5 77. Kg3 Ke4 78. Qe8+ 1-0

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "5"]
[White "Matyszkiewicz, Wiktor"]
[Black "Mazurek, Jerzy"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1793"]
[BlackElo "1726"]
[PlyCount "77"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 Bg7 11. c3 f5 12. Bd3 Ne7 13. Nxe7 Qxe7 14. Qh5 d5 15. exd5 e4 16. 0-0 0-0 17. Bc2 b4 18. Nc4 Qc5 19. Ne3 bxc3 20. bxc3 Qxc3 21. Rac1 Qf6 22. Ba4 Ra7 23. Rc6 Qe5 24. Nc4 Qf4 25. g3 Qg4 26. Qxg4 fxg4 27. d6 Be6 28. Nb6 Bd4 29. Rd1 Bxb6 30. Rxb6 Rd8 31. a3 f5 32. Kf1 Bc4+ 33. Ke1 Kf7 34. Kd2 Bb5 35. Bb3+ Kf6 36. Ke3 Bd7 37. Rc1 Rc8 38. Rxc8 Bxc8 39. d7+ 1-0

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "10"]
[White "Matyszkiewicz, Wiktor"]
[Black "Milczarek, Robert"]
[Result "0-1"]
[ECO "B04"]
[WhiteElo "1793"]
[BlackElo "1584"]
[PlyCount "142"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 c6 6. Be2 Bf5 7. 0-0 Nd7 8. Nf3 e6 9. c4 Nb4 10. a3 Na6 11. Bf4 Be7 12. Qb3 Qb6 13. Qc3 0-0 14. c5 Qd8 15. Bxa6 bxa6 16. Nbd2 Nf6 17. Qc4 Nd5 18. Bg3 Qc8 19. Qa4 Qb7 20. Ra2 Qb5 21. Qd1 Rfd8 22. Ne5 f6 23. Nef3 e5 24. dxe5 Bxc5 25. exf6 Nxf6 26. b4 Bb6 27. Qb3+ Qd5 28. Re1 Re8 29. Raa1 Ne4 30. Qxd5+ cxd5 31. Nb3 Nxg3 32. hxg3 Rxe1+ 33. Rxe1 Rc8 34. Nfd4 Be4 35. f3 Bc2 36. Kf1 Bd3+ 37. Kg1 Rc4 38. Kh2 Bxd4 39. Nxd4 Rxd4 40. Rd1 Kf7 41. Kg1 Ke6 42. Kf2 Ke5 43. Ke3 Rc4 44. Rxd3 Rc2 45. f4+ Kd6 46. Kf3 Ra2 47. g4 h6 48. g3 Ra1 49. Ke3 Ra2 50. Kd4 Ra1 51. Rf3 Rd1+ 52. Kc3 Rc1+ 53. Kb2 Re1 54. Rd3 Rg1 55. Kb3 Rc1 56. Ka4 Rc6 57. Re3 d4 58. Re5 d3 59. Re8 Kd5 60. Kb3 Kd4 61. Rd8+ Ke3 62. Re8+ Kd2 63. Kb2 Kd1 64. a4 d2 65. Re7 Rc2+ 66. Kb1 Rc4 67. Kb2 Rxb4+ 68. Ka2 Rc4 69. Kb2 Rb4+ 70. Ka2 Kc2 71. Rc7+ Kd3 0-1

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "1"]
[White "Matyszkiewicz, Wiktor"]
[Black "Pettersson, Alexander"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1793"]
[BlackElo "1849"]
[PlyCount "104"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. h3 g6 7. Nf3 Bf5 8. Bxf5 gxf5 9. 0-0 e6 10. Bf4 Rg8 11. Nbd2 Ne4 12. Ne5 Nxe5 13. dxe5 Bc5 14. Nf3 Qb6 15. Qc2 Rc8 16. Rac1 a6 17. b4 Be7 18. Qb3 Rc4 19. Nd4 Qc7 20. Ne2 b5 21. f3 Ng5 22. Bxg5 Bxg5 23. f4 Bd8 24. a4 Qa7+ 25. Kh1 Qe3 26. Qd1 Bb6 27. Rf3 Qe4 28. axb5 axb5 29. Ng3 Rxg3 30. Rxg3 Qxf4 31. Qe1 Re4 32. Rg8+ Ke7 33. Qf1 Qxe5 34. Ra1 Bc7 35. Qg1 Qxc3 36. Rc1 Qe5 37. Qc5+ Bd6 38. Qg1 Bxb4 39. Qa7+ Kf6 40. Qd7 Re1+ 41. Rxe1 Qxe1+ 42. Kh2 Qe5+ 43. Kh1 Bd6 44. Qd8+ Be7 45. Qb6 b4 46. Qf2 Qe4 47. Rg4 Qb1+ 48. Kh2 Bd6+ 49. g3 Ke7 50. Qa7+ Kf6 51. Qf2 b3 52. Rd4 Bc5 0-1

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "6"]
[White "Matyszkiewicz, Wiktor"]
[Black "Rylski, Tadeusz"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1793"]
[BlackElo "1733"]
[PlyCount "108"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. e5 Bb7 7. Be3 Qc7 8. f4 Bb4 9. Qd2 Ne7 10. Bd3 Nd5 11. 0-0 Nxc3 12. bxc3 Bxc3 13. Qf2 Bxa1 14. Rxa1 Nc6 15. Nb3 Nb4 16. Bc5 Nxd3 17. cxd3 Bd5 18. Bd6 Qd8 19. Nc5 f5 20. Rc1 Rc8 21. d4 Kf7 22. Rc3 Qa5 23. Rc2 Rhd8 24. h3 Kg8 25. Kh2 h6 26. Qh4 Kh7 27. Re2 Qc3 28. Qf2 Qa5 29. a3 Bc6 30. Re3 Rg8 31. h4 Ra8 32. g4 fxg4 33. f5 exf5 34. Qxf5+ Kh8 35. Qd3 Qd8 36. d5 Qxh4+ 37. Kg1 g3 38. Rxg3 Bxd5 39. Nxd7 Qh1+ 40. Kf2 Qh2+ 41. Ke1 Rac8 42. Nc5 Bc4 43. Qe3 Rcf8 44. Bxf8 Rxf8 45. Rg1 Rf5 46. Nd7 Qh4+ 47. Kd1 Qh5+ 48. Kc1 Be6 49. Qa7 Bxd7 50. Qxd7 Rg5 51. Qd8+ Kh7 52. Rf1 Rxe5 53. Rg1 Rc5+ 54. Kb1 Qf5+ 0-1

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "3"]
[White "Matyszkiewicz, Wiktor"]
[Black "Safanowski, Tomasz"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "1793"]
[BlackElo "1708"]
[PlyCount "53"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 0-0 8. Nf3 c5 9. Qd2 Nc6 10. dxc5 Qxc5 11. 0-0-0 Nb6 12. Kb1 Nc4 13. Bxc4 Qxc4 14. Qe3 b6 15. Nd4 Nxd4 16. Rxd4 Qc5 17. Ne2 a5 18. Ng3 Ba6 19. Nh5 Be2 20. Qxe2 Qxd4 21. Qg4 g6 22. Qg5 f5 23. Nf6+ Kg7 24. h4 Rxf6 25. Qxf6+ Kg8 26. h5 Rf8 27. Qxe6+ 1-0

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "4"]
[White "Moskwinski, Marek"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "1858"]
[BlackElo "1793"]
[PlyCount "51"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 b5 10. Bxf6 gxf6 11. Kb1 Rc8 12. g3 Qb6 13. Nxc6 Bxc6 14. Bg2 Be7 15. Rhe1 0-0 16. Nd5 Bxd5 17. exd5 e5 18. Be4 Kg7 19. Qe2 Rfd8 20. Qg4+ Kf8 21. Bxh7 Ke8 22. Qg7 Rc5 23. Bf5 Qb7 24. Qh8+ Bf8 25. Qxf6 Rxd5 26. fxe5 1-0

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "9"]
[White "Nocek, Dominik"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "1627"]
[BlackElo "1793"]
[PlyCount "155"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 e5 7. Nde2 Be7 8. Bg2 0-0 9. 0-0 Be6 10. h3 Qa5 11. Bd2 Qb6 12. Be3 Qxb2 13. Rb1 Qa3 14. Rxb7 Rab8 15. Rc7 Rfc8 16. Rxc8+ Rxc8 17. Qd2 Nb4 18. Nb5 Qa4 19. Nec3 Qxc2 20. Qxc2 Nxc2 21. Bxa7 Nd4 22. a4 Bb3 23. Nxd4 Rxc3 24. Nxb3 Rxb3 25. Ra1 Nd7 26. a5 Rb7 27. Be3 Nc5 28. a6 Ra7 29. Bxc5 dxc5 30. Bf1 Kf8 31. Bb5 Bd6 32. Bc6 c4 33. Bb7 c3 34. Rc1 Bb4 35. Kf1 Ke7 36. Ke2 Kd6 37. Kd3 Bc5 38. f4 Bd4 39. fxe5+ Bxe5 40. g4 Kc5 41. Rf1 f6 42. Kc2 Kc4 43. Rd1 Bd4 44. h4 h6 45. Rd3 g6 46. Rd1 Kc5 47. Kb3 Be5 48. Rd7 Bg3 49. h5 gxh5 50. gxh5 Be5 51. Rh7 Bf4 52. Kxc3 Kd6 53. Kd3 Bg5 54. Ke2 Ke5 55. Kf3 Bd2 56. Kg4 Be3 57. Re7+ Kd6 58. Re8 Kd7 59. Rg8 Ke6 60. Rh8 Bg5 61. Rh7 Ke5 62. Rc7 Be3 63. Kf3 Bg5 64. Ke2 Kd6 65. Rc8 Bf4 66. Kd3 Bg5 67. Kc4 Be3 68. Kd3 Bg5 69. Kd4 Kd7 70. Kd5 Bf4 71. Rh8 Kc7 72. Ke6 Bg5 73. Kf5 Kd6 74. Kg6 Ke6 75. Rh7 Be3 76. Rf7 Bd4 77. Rc7 Be5 78. Bd5+ 1-0

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "2"]
[White "Szukalski, Antoni"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1702"]
[BlackElo "1793"]
[PlyCount "45"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Nf3 0-0 6. Bd3 c5 7. dxc5 dxc4 8. Bxc4 Qa5 9. 0-0 Qxc5 10. Be2 Nc6 11. Bd2 Rd8 12. Qb3 Bg4 13. Rfd1 a6 14. Na4 Qa7 15. Nb6 Rab8 16. Bc3 Ne4 17. Bxg7 Kxg7 18. h3 Be6 19. Bc4 Na5 20. Qb4 Nc6 21. Qb3 Na5 22. Qb4 Nc6 23. Qb3 1/2-1/2

[Event "Warsaw YMCA Autumn-A 266th"]
[Site "Warsaw"]
[Date "2022.09.30"]
[Round "7"]
[White "Terkiewicz, Bruno"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "1846"]
[BlackElo "1793"]
[PlyCount "46"]
[EventDate "2022.09.30"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 c5 8. d5 0-0 9. Bxg7 Kxg7 10. Qd2 e6 11. Bc4 exd5 12. exd5 Nd7 13. Ne2 Ne5 14. 0-0 Qh4 15. Bb3 b6 16. Ng3 Bb7 17. Rfe1 Ng4 18. h3 Nf6 19. Qc3 Kg8 20. Rad1 Rad8 21. d6 Ne8 22. Qe5 Bc6 23. Qe7 Qf4 1-0

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.06.23"]
[Round "11"]
[White "Matyszkiewicz, Wiktor"]
[Black "Sypula, Krzysztof"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1777"]
[BlackElo "1680"]
[PlyCount "53"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 a6 6. Be2 e6 7. 0-0 b6 8. Bg5 Bb7 9. Ne5 Be7 10. Bf3 Qc8 11. Re1 0-0 12. Ng4 Nbd7 13. Bxb7 Qxb7 14. d5 Rad8 15. dxe6 fxe6 16. Qe2 Bc5 17. Qxe6+ Kh8 18. Nxf6 Nxf6 19. Be3 Rde8 20. Qh3 Qc6 21. Bxc5 Qxc5 22. Qg3 h6 23. h3 b5 24. a3 a5 25. Rxe8 Rxe8 26. Qd3 c6 27. Rf1 1/2-1/2

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.06.09"]
[Round "10"]
[White "Sloniewska, Alicja"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "1737"]
[BlackElo "1777"]
[PlyCount "82"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[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. d5 a5 8. 0-0 Na6 9. Qc2 Bd7 10. a3 h6 11. Ne1 Nh7 12. Be3 f5 13. f3 f4 14. Bf2 g5 15. Nd3 g4 16. fxg4 Qg5 17. Qd1 Qg6 18. Bf3 Ng5 19. b4 Rf7 20. b5 Nc5 21. Nxc5 dxc5 22. Bxc5 b6 23. Bf2 h5 24. h3 hxg4 25. Bxg4 f3 26. Bxd7 Rxd7 27. Kh2 Rf8 28. Bg3 Bf6 29. Rxf3 Nxf3+ 30. Qxf3 Bh4 31. Qe3 Bxg3+ 32. Qxg3 Qxg3+ 33. Kxg3 Rg7+ 34. Kh2 Rf2 35. Rg1 Rc2 36. Nd1 Rxc4 37. Nf2 Rf7 38. Ng4 Rf4 39. Nxe5 Rcxe4 40. Nf3 Rf5 41. Rd1 Re3 0-1

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.05.31"]
[Round "9"]
[White "Matyszkiewicz, Wiktor"]
[Black "Pichurko, Jakub"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "1777"]
[BlackElo "1767"]
[PlyCount "68"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6 5. Bd3 g6 6. Nc3 Bg7 7. a4 a5 8. Bf4 0-0 9. 0-0 Bg4 10. h3 Bxf3 11. Qxf3 Nc6 12. Qe4 e6 13. exd6 cxd6 14. Nb5 e5 15. dxe5 dxe5 16. Bd2 f5 17. Qe2 h6 18. Rfd1 Qe7 19. Be3 Nd7 20. Nc7 Rac8 21. Ne6 Rf6 22. Nxg7 Kxg7 23. f3 Nc5 24. Bb5 Rd8 25. Qc4 b6 26. c3 Rfd6 27. Rxd6 Qxd6 28. b4 axb4 29. cxb4 Qd3 30. Qxd3 Rxd3 31. Bxd3 Nxd3 32. b5 Nd4 33. Bxd4 exd4 34. Rd1 Nf4 1-0

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.05.26"]
[Round "8"]
[White "Safanowski, Tomasz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "D74"]
[WhiteElo "1671"]
[BlackElo "1777"]
[PlyCount "60"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. Nf3 d5 6. d4 c5 7. dxc5 Qa5 8. 0-0 dxc4 9. Qc2 Nc6 10. Be3 Bf5 11. Qa4 Qxa4 12. Nxa4 Nd5 13. Nd4 Nxe3 14. Nxc6 Nxf1 15. Nxe7+ Kh8 16. Nxf5 gxf5 17. Kxf1 Rab8 18. Rc1 b5 19. cxb6 axb6 20. Bd5 b5 21. Nc3 Rfd8 22. Bxf7 Rd2 23. a4 b4 24. Nb5 Rc8 25. b3 c3 26. Ke1 Rf8 27. Bc4 f4 28. Nc7 fxg3 29. hxg3 Rf5 30. Ne6 Rh5 0-1

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.05.19"]
[Round "7"]
[White "Matyszkiewicz, Wiktor"]
[Black "Nocek, Dominik"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "1777"]
[BlackElo "1675"]
[PlyCount "119"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[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. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. d3 d6 9. c3 Na5 10. Bc2 c5 11. Nbd2 Nc6 12. Nf1 Re8 13. h3 h6 14. a4 b4 15. Ng3 Bf8 16. d4 Rb8 17. a5 Qc7 18. Ba4 Bd7 19. d5 Nxa5 20. Bxd7 Nxd7 21. Nf5 b3 22. Nh2 c4 23. Qg4 Kh7 24. Re3 g6 25. Rg3 Nf6 26. Qh4 Nh5 27. Ng4 Qd8 28. Rf3 Nb7 29. Qxd8 Nxd8 30. Ng3 Nxg3 31. fxg3 Re7 32. Rxa6 Rc7 33. Nf6+ Kh8 34. Ne8 Rd7 35. Be3 Nb7 36. Nf6 Rc7 37. Rf1 Bg7 38. Ng4 h5 39. Nh2 Bf8 40. g4 hxg4 41. Nxg4 Kg7 42. Bh6+ Kh7 43. Bxf8 Rxf8 44. Ne3 Rd8 45. Rc6 Rdc8 46. Rxf7+ Rxf7 47. Rxc8 Nc5 48. Nxc4 Nxe4 49. Rc6 Ra7 50. Rb6 Ra1+ 51. Kh2 Nc5 52. Rxd6 e4 53. Rc6 Nd3 54. Rb6 Re1 55. d6 Nc5 56. Rb5 Ne6 57. Re5 Ng7 58. d7 Rd1 59. Nb6 Nf5 60. Nd5 1-0

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.05.11"]
[Round "6"]
[White "Szukalski, Antoni"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "1702"]
[BlackElo "1777"]
[PlyCount "58"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[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. Nf3 0-0 5. g3 c5 6. Bg2 cxd4 7. Nxd4 Nc6 8. Nxc6 bxc6 9. 0-0 Ba6 10. Qa4 Bb7 11. c5 a5 12. Rd1 Qc7 13. Bf4 e5 14. Bg5 h6 15. Bxf6 Bxf6 16. Ne4 Be7 17. Nd6 Ba6 18. Qe4 Bxd6 19. Rxd6 Rae8 20. Rad1 Qa7 21. Qe3 Re7 22. Bh3 Bc8 23. Qxh6 Qxc5 24. Qg5 Rfe8 25. Bxd7 Bxd7 26. Rxd7 Rxd7 27. Rxd7 Qc4 28. a3 Qxe2 29. Qd2 Qe4 1/2-1/2

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.05.05"]
[Round "5"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kacprzak, Karol"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1777"]
[BlackElo "1699"]
[PlyCount "67"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. h3 Nc6 6. c3 g6 7. Nf3 Bg7 8. Bf4 0-0 9. 0-0 a6 10. Re1 b5 11. a3 Bd7 12. Nbd2 Na5 13. Qe2 Re8 14. Ne5 Nc4 15. Nb3 Nxe5 16. dxe5 Nh5 17. Bh2 Bf8 18. Qf3 e6 19. Nd4 Qg5 20. Kh1 Reb8 21. g4 Ng7 22. Qe2 Qh4 23. Rg1 Qxh3 24. Nf3 Bc6 25. Rg3 Qh6 26. Nd4 Bd7 27. f4 Bc5 28. Qf3 Ne8 29. f5 Bxd4 30. cxd4 b4 31. Rh3 Qd2 32. fxg6 fxg6 33. Rf1 Nf6 34. exf6 1-0

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.04.27"]
[Round "4"]
[White "Basiaga, Sebastian"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1775"]
[BlackElo "1777"]
[PlyCount "154"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. 0-0 0-0 10. f3 a5 11. Be3 Na6 12. b3 Nc5 13. Qe2 Rfd8 14. Rfd1 Qe8 15. Rac1 Nfd7 16. Ndb5 Na6 17. Nd5 Qf8 18. Bg5 f6 19. Be3 Ndc5 20. Rd2 Qf7 21. Rcd1 Rf8 22. Qf2 Rac8 23. Qe1 Kh8 24. Re2 a4 25. b4 Ne6 26. Nb6 Rc6 27. Rc1 Nf4 28. Bxf4 Rxb6 29. a3 Rc6 30. Rec2 Nb8 31. Be3 Nd7 32. Na7 Rc7 33. Qe2 f5 34. Nb5 Rcc8 35. Bd4 Bxd4+ 36. Nxd4 fxe4 37. Qxe4 Qf4 38. Qxf4 Rxf4 39. Ne2 Rf5 40. f4 Kg8 41. g3 Kf7 42. Nd4 Rf6 43. Kg2 h6 44. Nf3 b6 45. h4 Re6 46. Re1 Rxe1 47. Nxe1 e5 48. Kf3 Ke6 49. Nd3 b5 50. fxe5 Rxc4 51. Nf4+ Kxe5 52. Re2+ Kd4 53. Rd2+ Kc3 54. Rxd6 Ne5+ 55. Kg2 Kb3 56. Rd5 Nc6 57. Nxg6 Kxa3 58. Rxb5 Rxb4 59. Rh5 Kb3 60. Nf4 a3 61. Ne2 Rc4 62. Rb5+ Ka4 63. Rb1 Rc2 64. Kf3 Na5 65. g4 Nb3 66. g5 hxg5 67. hxg5 a2 68. Rg1 Nc1 69. Rg4+ Ka5 70. Nd4 Rc3+ 71. Ke4 a1Q 72. g6 Qb1+ 73. Kd5 Qb7+ 74. Kd6 Qc7+ 75. Kd5 Rc5+ 76. Ke4 Qg7 77. Rg1 Rc4 0-1

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.04.21"]
[Round "3"]
[White "Milczarek, Robert"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "1668"]
[BlackElo "1777"]
[PlyCount "50"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[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. Be2 0-0 6. Bg5 h6 7. Be3 e5 8. d5 Nbd7 9. Qd2 Kh7 10. g4 Ng8 11. h4 a5 12. h5 g5 13. f3 Nc5 14. Nh3 Bd7 15. b3 f6 16. 0-0 Qe7 17. Nf2 Rfb8 18. Rfd1 Bf8 19. Nb5 Bxb5 20. cxb5 b6 21. Bxc5 dxc5 22. Nd3 Qd7 23. Nb2 Bd6 24. Rab1 Ne7 25. a3 Nc8 1/2-1/2

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.04.13"]
[Round "2"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kuc, Mariusz"]
[Result "0-1"]
[ECO "B98"]
[WhiteElo "1777"]
[BlackElo "1727"]
[PlyCount "84"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[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. Nxd4 Nf6 5. Nc3 d6 6. Bg5 a6 7. f4 Be7 8. Qf3 Qc7 9. 0-0-0 Nc6 10. g4 Nxd4 11. Rxd4 b5 12. Bg2 Bb7 13. Rhd1 Rc8 14. Qe2 Qa5 15. Kb1 b4 16. Nd5 exd5 17. exd5 h6 18. Bxf6 gxf6 19. Re1 Qd8 20. Rxb4 Rc7 21. h4 Bc8 22. f5 Kf8 23. Qe4 Kg7 24. Bf1 a5 25. Rb3 Re8 26. Qd4 Kh7 27. Rbe3 Bd7 28. Bd3 Bf8 29. g5 Rxe3 30. Qxe3 Bc8 31. Qg3 Bg7 32. g6+ Kh8 33. Qe3 Bf8 34. Qd4 fxg6 35. fxg6 Kg7 36. h5 Re7 37. Rf1 Re5 38. Qa7+ Be7 39. a4 Rxd5 40. Bc4 Rxh5 41. Bb3 Re5 42. Qd4 Bf5 0-1

[Event "Warsaw YMCA Spring-B 258th"]
[Site "Warsaw"]
[Date "2022.04.07"]
[Round "1"]
[White "Mazurek, Jerzy"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "1746"]
[BlackElo "1777"]
[PlyCount "45"]
[EventDate "2022.04.07"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. Nde2 Be7 9. Bg5 Nc6 10. Bxf6 Bxf6 11. Qd2 0-0 12. 0-0-0 Rfd8 13. Kb1 b5 14. Nd5 Be7 15. f3 Bf8 16. g4 b4 17. h4 Rdb8 18. h5 Ne7 19. h6 Nxd5 20. hxg7 Nc3+ 21. Nxc3 bxc3 22. gxf8Q+ Rxf8 23. Qg5+ 1-0

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.12.10"]
[Round "12"]
[White "Adamski, Adam"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B87"]
[WhiteElo "1704"]
[BlackElo "1756"]
[PlyCount "152"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. 0-0 0-0 9. f4 Qc7 10. Be3 b5 11. a3 Bb7 12. Qf3 Nbd7 13. Rae1 Nc5 14. Bd2 Nxb3 15. Nxb3 d5 16. exd5 Nxd5 17. Qe2 Bf6 18. Nxd5 Bxd5 19. Bc1 Bc4 20. Qe4 Bxf1 21. Rxf1 Rac8 22. c3 Qc4 23. Qc2 g6 24. Be3 Rfd8 25. Nc1 Bd4 26. Qe4 Bxe3+ 27. Qxe3 Qc5 28. Qxc5 Rxc5 29. Nb3 Rc4 30. g3 Rd5 31. Re1 Kf8 32. Kf2 Ke7 33. Re2 Rc8 34. Na5 Kf6 35. Nb3 Rcd8 36. Nd4 R8d6 37. Rc2 h5 38. Re2 Rd8 39. Kf3 R8d6 40. Kf2 a5 41. Rc2 b4 42. axb4 axb4 43. Ke2 bxc3 44. bxc3 Ra6 45. Kd3 Rda5 46. c4 Ra2 47. c5 Rxc2 48. Nxc2 Ke7 49. Nb4 Ra1 50. Nc6+ Ke8 51. Ne5 Rc1 52. c6 f6 53. Nxg6 Rxc6 54. Nh4 Ra6 55. Nf3 Ra3+ 56. Ke2 Ke7 57. h3 Kd6 58. g4 hxg4 59. hxg4 Kd5 60. g5 Ke4 61. Nd2+ Kxf4 62. gxf6 Ra7 63. Kd3 Rd7+ 64. Kc3 Rf7 65. Kd4 Rxf6 66. Nc4 Rf8 67. Kd3 Rd8+ 68. Ke2 Ra8 69. Nd6 e5 70. Kf2 Ra2+ 71. Ke1 e4 72. Nc4 e3 73. Kd1 Ke4 74. Nd6+ Kd3 75. Kc1 Rc2+ 76. Kb1 e2 0-1

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.11.26"]
[Round "10"]
[White "Matyszkiewicz, Wiktor"]
[Black "Lewandrowski, Tomasz"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1756"]
[BlackElo "1814"]
[PlyCount "107"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[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. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Be6 9. c3 Nf6 10. Bg5 Bxd5 11. Bxf6 gxf6 12. Qxd5 Rc8 13. Nc2 Qb6 14. Be2 Ne7 15. Qb3 Bh6 16. a4 0-0 17. 0-0 Rb8 18. axb5 axb5 19. Nb4 Ra8 20. Nd5 Nxd5 21. Qxd5 Rxa1 22. Rxa1 Rb8 23. Rd1 Bf8 24. Bg4 Qc5 25. Qd3 Qc4 26. Qh3 Kh8 27. Bf5 h6 28. Qh5 Rb6 29. Rd5 Qc7 30. Rd3 Rb8 31. Qg4 Bg7 32. Qd1 Bf8 33. h4 Qd8 34. Qh5 Qe7 35. Qg4 Bg7 36. Qd1 Bf8 37. Qb3 Qa7 38. g4 Kg7 39. Qd1 Be7 40. g5 fxg5 41. hxg5 Rh8 42. gxh6+ Rxh6 43. Qg4+ Kf8 44. Rh3 Rxh3 45. Qxh3 Bf6 46. b4 Ke7 47. Kg2 Qc7 48. Bg4 Bg5 49. Be2 Qc6 50. Qd3 f5 51. Qxb5 Qxb5 52. Bxb5 fxe4 53. Bc6 Bd2 54. Bxe4 1/2-1/2

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.11.19"]
[Round "9"]
[White "Kalejta, Arkadiusz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "B63"]
[WhiteElo "1784"]
[BlackElo "1756"]
[PlyCount "104"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 h6 8. Bxf6 Qxf6 9. Ndb5 Qd8 10. 0-0-0 a6 11. Nxd6+ Bxd6 12. Qxd6 Qxd6 13. Rxd6 Ke7 14. Rd2 b5 15. Be2 Bb7 16. Rhd1 Rhd8 17. f3 Rxd2 18. Kxd2 Rd8+ 19. Ke3 Rxd1 20. Bxd1 Kd6 21. a3 Ne5 22. b3 Kc5 23. Be2 Bc6 24. Nd1 Bd7 25. f4 Nc6 26. Nb2 e5 27. Nd3+ Kd6 28. fxe5+ Nxe5 29. h3 g5 30. Nb2 Kc5 31. c4 b4 32. axb4+ Kxb4 33. Kd4 Nc6+ 34. Kd5 Kxb3 35. Nd3 Nb4+ 36. Nxb4 Kxb4 37. c5 a5 38. c6 Be6+ 39. Kd6 a4 40. Bg4 Bc4 41. c7 Ba6 42. e5 a3 43. e6 fxe6 44. Bxe6 Kc3 45. Kd7 Kd4 46. c8Q Bxc8+ 47. Kxc8 Ke3 48. Kd7 Kf2 49. Ke7 Kxg2 50. Kf6 a2 51. Bxa2 Kxh3 52. Kg6 g4 1/2-1/2

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.11.12"]
[Round "8"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kuc, Mariusz"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "1756"]
[BlackElo "1910"]
[PlyCount "65"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[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. d4 cxd4 4. Nxd4 d6 5. Nc3 e6 6. Be3 Nf6 7. Be2 Be7 8. Qd2 Bd7 9. 0-0-0 a6 10. g4 h6 11. h4 Nxd4 12. Qxd4 e5 13. Qd3 Bb5 14. Nxb5 axb5 15. Qxb5+ Kf8 16. Kb1 Qc8 17. f3 g6 18. g5 hxg5 19. hxg5 Nh5 20. f4 Kg8 21. fxe5 dxe5 22. Qxe5 Qe6 23. Qxe6 fxe6 24. Rd7 Ng3 25. Rxh8+ Kxh8 26. Bd3 Bf8 27. Bd4+ Kg8 28. Rxb7 Rd8 29. Bf6 Re8 30. Bb5 Ra8 31. Bd7 Ra6 32. Be8 Bc5 33. Bxg6 1-0

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.11.05"]
[Round "7"]
[White "Adamski, Adam"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B66"]
[WhiteElo "1704"]
[BlackElo "1756"]
[PlyCount "167"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f3 b5 10. Nxc6 Bxc6 11. Ne2 h6 12. Be3 Be7 13. h4 h5 14. Nd4 Bb7 15. Bg5 Nd7 16. Bxe7 Qxe7 17. Nb3 d5 18. Na5 Nb6 19. Nxb7 Qxb7 20. Qg5 f6 21. Qe3 Kf7 22. g4 dxe4 23. fxe4 Rad8 24. Rxd8 Rxd8 25. g5 f5 26. g6+ Kf8 27. Bd3 Nc4 28. Qg5 Qc7 29. Bxc4 bxc4 30. exf5 Rd5 31. Rf1 Rxf5 32. Rxf5+ exf5 33. Qxf5+ Ke8 34. Qe6+ Kf8 35. Qe4 Qa7 36. Kd2 Qf2+ 37. Kc3 Qf6+ 38. Kxc4 Qxb2 39. Qa8+ Ke7 40. Qa7+ Ke8 41. Qe3+ Kf8 42. Qb3 Qa1 43. Kb4 Qe1+ 44. Ka3 Qa5+ 45. Kb2 Qe5+ 46. c3 Qf6 47. Qb8+ Ke7 48. Qb7+ Ke8 49. Qe4+ Kf8 50. a4 a5 51. Qa8+ Ke7 52. Qxa5 Qxg6 53. Qc7+ Ke8 54. a5 Qg2+ 55. Ka3 Qg1 56. Qe5+ Kf8 57. Qf5+ Ke8 58. Qxh5+ Kf8 59. Qf5+ Kg8 60. Qc8+ Kh7 61. Qc4 Qa1+ 62. Kb4 Qb1+ 63. Ka4 Qc2+ 64. Kb5 Qf5+ 65. Qc5 Qd7+ 66. Qc6 Qa7 67. c4 Qb8+ 68. Ka6 Qd8 69. h5 Qe7 70. h6 Qd8 71. hxg7 Kxg7 72. c5 Kh8 73. Qb7 Qd3+ 74. Ka7 Qd4 75. Kb8 Qe5+ 76. Qc7 Qb2+ 77. Ka7 Qd4 78. a6 Qf2 79. Ka8 Kg8 80. Qd8+ Kh7 81. c6 Qf3 82. Qc7+ Kh8 83. Qb8+ Kh7 84. Qb7+ 1-0

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.10.29"]
[Round "6"]
[White "Matyszkiewicz, Wiktor"]
[Black "Niedbal, Piotr"]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "1756"]
[BlackElo "1837"]
[PlyCount "59"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[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. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. 0-0 Nf6 8. Kh1 Bb4 9. Nxc6 bxc6 10. Na4 Be7 11. Qd3 d5 12. f3 0-0 13. Be3 Rb8 14. c3 Rd8 15. Qc2 c5 16. b3 a5 17. e5 Nd7 18. f4 Bb7 19. Bd3 g6 20. Bb5 Nb6 21. Qf2 Nxa4 22. bxa4 Ba8 23. Rab1 Bf8 24. Rfd1 Be7 25. Rd2 Bf8 26. Rdd1 Be7 27. Rd2 Bf8 28. Rdb2 Qa7 29. Rd2 Qc7 30. Rdb2 1/2-1/2

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.10.22"]
[Round "5"]
[White "Lewandrowski, Tomasz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1814"]
[BlackElo "1756"]
[PlyCount "109"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 Bg7 5. h4 0-0 6. h5 c5 7. hxg6 fxg6 8. Qd2 Nc6 9. 0-0-0 Be6 10. Nf3 Rc8 11. Kb1 Qa5 12. Ne5 c4 13. e4 Nxe4 14. Nxe4 Qxd2 15. Nxd2 Rxf4 16. Nxc6 Rxc6 17. Nf3 Bg4 18. Be2 h6 19. c3 g5 20. Rde1 e6 21. Ne5 Bf5+ 22. Kc1 Bxe5 23. dxe5 Rxf2 24. g4 Bg6 25. Rxh6 Kg7 26. Rh3 Rc7 27. Kd2 Rcf7 28. Ke3 R2f4 29. Kd2 Re4 30. Re3 Rxe3 31. Kxe3 Rf4 32. Bf3 Be4 33. Be2 Rf8 34. b3 cxb3 35. axb3 b6 36. b4 Rc8 37. Kd4 Rc7 38. Rf1 Rf7 39. Ra1 Kf8 40. Ke3 Ke8 41. c4 Kd8 42. c5 bxc5 43. bxc5 Kc8 44. Ra6 Re7 45. Kd4 Kb7 46. c6+ Kb8 47. Kc5 Rc7 48. Ra4 d4 49. Bb5 a6 50. Rxa6 Bf3 51. Ra4 Bxg4 52. Rxd4 Bf3 53. Kb6 g4 54. Rd8+ Rc8 55. c7+ 1-0

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.10.15"]
[Round "4"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kalejta, Arkadiusz"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "1756"]
[BlackElo "1784"]
[PlyCount "109"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[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 Nf6 4. Nc3 Be7 5. 0-0 0-0 6. d4 d6 7. d5 Na5 8. Be2 b6 9. b4 Nb7 10. Bb2 Bd7 11. Ba6 Qb8 12. Qd3 Nh5 13. Nd2 Nf4 14. Qc4 f5 15. a4 Rf6 16. Ne2 Nxe2+ 17. Qxe2 f4 18. Bb5 Bc8 19. Bc6 a5 20. c3 Ra7 21. Rfb1 Nd8 22. bxa5 Nxc6 23. axb6 Qxb6 24. dxc6 Qxc6 25. Qb5 Qa8 26. Qd5+ Qxd5 27. exd5 Ra5 28. c4 Bd7 29. Ne4 Rf8 30. Nc3 Rfa8 31. Ra2 Kf7 32. Rba1 c6 33. dxc6 Be6 34. Nd5 Bxd5 35. cxd5 Rxd5 36. Rc1 Bd8 37. c7 Rc8 38. cxd8N+ Ke7 39. Re1 Kxd8 40. Bc1 Ra8 41. g3 g5 42. Kg2 Kd7 43. Re4 Ke6 44. Bd2 Kf5 45. Rc4 h5 46. h4 gxh4 47. gxf4 Rg8+ 48. Kh2 Rd3 49. fxe5 h3 50. Be3 Rd1 51. Rc1 Rd5 52. exd6 Rxd6 53. Kxh3 Ke4 54. Rc4+ Kf3 55. Rf4# 1-0

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.10.08"]
[Round "3"]
[White "Kuc, Mariusz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1910"]
[BlackElo "1756"]
[PlyCount "60"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. Bc4 Nf6 4. d3 g6 5. f4 Bg7 6. Nf3 0-0 7. 0-0 Nc6 8. a3 a6 9. Qe1 b5 10. Ba2 b4 11. axb4 Nxb4 12. Bb3 Bb7 13. e5 Nfd5 14. e6 f5 15. Bd2 Qc7 16. g4 fxg4 17. Ne4 gxf3 18. Rxf3 Nf6 19. Rh3 Qc6 20. Qh4 h5 21. Re1 Nxe4 22. dxe4 c4 23. Bxb4 Qb6+ 24. Kf1 Qxb4 25. Ba2 Qxb2 26. Bxc4 Qxc2 27. Bd3 Qd2 28. f5 Rxf5+ 29. Kg1 Rg5+ 30. Kh1 Qg2# 0-1

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.10.01"]
[Round "2"]
[White "Matyszkiewicz, Wiktor"]
[Black "Adamski, Adam"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "1756"]
[BlackElo "1704"]
[PlyCount "98"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 9. Qd2 Qxb2 10. Rb1 Qa3 11. Be2 Be7 12. 0-0 Nc6 13. Kh1 Nxd4 14. Qxd4 Qc5 15. Qd3 b5 16. e5 dxe5 17. fxe5 Nd7 18. Bf2 Qc7 19. Bd4 0-0 20. Ne4 Bb7 21. Nf6+ Nxf6 22. exf6 Bc5 23. Bxc5 Qxc5 24. fxg7 Rfd8 25. Qh3 Qg5 26. Rb3 Rd4 27. Rf2 Rad8 28. Rg3 Qh4 29. Qxh4 Rxh4 30. Rc3 Rd7 31. Kg1 Ra4 32. a3 f5 33. g3 Rad4 34. Bd3 Kxg7 35. Re2 Kf6 36. Kf2 e5 37. Re1 h5 38. Rc5 e4 39. Bf1 Rd2+ 40. Re2 Rxe2+ 41. Kxe2 Bd5 42. Rc8 Bc4+ 43. Ke1 Bxf1 44. Kxf1 Rd2 45. Rc6+ Kg5 46. Rxa6 Rxc2 47. Rb6 Rxh2 48. Rxb5 Ra2 49. Rb3 h4 0-1

[Event "Warsaw YMCA Autumn-A2 252nd"]
[Site "Warsaw"]
[Date "2021.10.01"]
[Round "1"]
[White "Niedbal, Piotr"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "1837"]
[BlackElo "1756"]
[PlyCount "91"]
[EventDate "2021.10.01"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 b5 10. Qe3 Nxd4 11. Qxd4 h6 12. Bxf6 gxf6 13. Be2 h5 14. Rhf1 Rb8 15. Bd3 b4 16. Ne2 a5 17. f5 e5 18. Qd5 Qc7 19. Bc4 Bc6 20. Qd3 a4 21. Kb1 Qb7 22. Bd5 Bxd5 23. exd5 Qb5 24. Qe4 Rc8 25. Rfe1 Kd7 26. Qh4 Qc4 27. Qxf6 Qxc2+ 28. Ka1 Rh7 29. Qh4 Rc4 30. Qh3 f6 31. Qe3 Bh6 32. Qa7+ Rc7 33. Qa5 Bd2 34. Qb5+ Kd8 35. Nd4 Bxe1 36. Nxc2 Rxc2 37. Rxe1 Rhc7 38. Rb1 b3 39. a3 Rxg2 40. Qxa4 Rxh2 41. Qxb3 Rg2 42. Qb8+ Kd7 43. Qf8 h4 44. Qxf6 h3 45. Qe6+ Kd8 46. f6 1-0

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.06.18"]
[Round "10"]
[White "Poniewierski, Piotr"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "1783"]
[BlackElo "1803"]
[PlyCount "142"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 c5 6. d4 cxd4 7. Nxd4 Nc6 8. Nc2 d6 9. Nc3 Bd7 10. b3 Qc7 11. Bg5 h6 12. Bxf6 exf6 13. Qd2 f5 14. Rad1 Qa5 15. Na4 Rfe8 16. e3 Re6 17. c5 Qxd2 18. Rxd2 Na5 19. Bd5 Ree8 20. cxd6 Bxa4 21. bxa4 Red8 22. Rb1 Rab8 23. Rb5 b6 24. Bb3 Nb7 25. Rbd5 Nc5 26. Nd4 Rd7 27. Nc6 Re8 28. Bc2 Bf6 29. Rd1 Rc8 30. Nb4 a5 31. Nd3 Nb7 32. Bb3 Rc6 33. Nf4 Rcxd6 34. Rxd6 Rxd6 35. Rxd6 Nxd6 36. Nxg6 Kg7 37. Nf4 Kf8 38. Kf1 Ke8 39. Ke2 Kd7 40. f3 Kc6 41. Kd3 Kc5 42. Ne2 Be5 43. Nd4 Bf6 44. f4 Bg7 45. Nf3 Bb2 46. Ne5 f6 47. Ng6 Kc6 48. Be6 Kc5 49. Kc2 Ba3 50. Ne7 Kb4 51. Nd5+ Kxa4 52. Nxb6+ Kb5 53. Nd7 Nc4 54. Kd3 Nb2+ 55. Ke2 Be7 56. Bxf5 Kb4 57. g4 Ka3 58. Be6 Na4 59. h4 Nc3+ 60. Kd2 Nxa2 61. g5 fxg5 62. fxg5 hxg5 63. h5 Bb4+ 64. Kd3 Kb2 65. Bxa2 Kxa2 66. h6 Kb2 67. Ke4 Bc3 68. Ne5 a4 69. h7 Bxe5 70. Kxe5 a3 71. h8Q a2 1-0

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.06.11"]
[Round "9"]
[White "Matyszkiewicz, Wiktor"]
[Black "Jedrusik, Adam"]
[Result "0-1"]
[ECO "B29"]
[WhiteElo "1803"]
[BlackElo "1956"]
[PlyCount "94"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 d5 5. exd5 Nxd5 6. Bc4 Nxc3 7. bxc3 e6 8. 0-0 Be7 9. Be3 0-0 10. Qe2 cxd4 11. cxd4 Qc7 12. Rab1 b6 13. Rfd1 Bb7 14. d5 Na5 15. Rd4 Bf6 16. Rf4 Nxc4 17. Rxc4 Qe7 18. dxe6 Ba6 19. Bf4 Rac8 20. Nd2 Bxc4 21. Nxc4 Qxe6 22. Qxe6 fxe6 23. Ne3 Bd4 24. g3 Bxe3 25. Bxe3 Rxc2 26. a4 Ra2 27. Rb4 Rd8 28. Rc4 h6 29. Kg2 Rd3 30. Kf3 Rda3 31. Rc8+ Kh7 32. Rc6 Rxa4 33. Rxe6 b5 34. Re7 a5 35. Rb7 Rb4 36. Bc5 Rb3+ 37. Ke4 Re2+ 38. Kf5 Re8 39. Bd4 Rg8 40. Ke4 a4 41. f4 a3 42. f5 Rb4 43. f6 Rd8 44. Rxg7+ Kh8 45. Ra7 Rbxd4+ 46. Kf5 Ra4 47. Rb7 Rg8 0-1

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.06.08"]
[Round "8"]
[White "Janeczko, Jakub"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "B24"]
[WhiteElo "1918"]
[BlackElo "1803"]
[PlyCount "107"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. g3 Nf6 4. Bg2 e5 5. Nc3 d6 6. Nge2 Be7 7. 0-0 0-0 8. f4 a6 9. f5 b5 10. h3 b4 11. Nd5 Nxd5 12. exd5 Nd4 13. Be4 Bg5 14. h4 Nxe2+ 15. Qxe2 Bxc1 16. Raxc1 f6 17. c4 bxc3 18. bxc3 Rb8 19. g4 Rf7 20. Rf2 Rfb7 21. Rcf1 a5 22. g5 a4 23. a3 Rb3 24. Rg2 Rxa3 25. Qh5 Bd7 26. gxf6 Qxf6 27. Rg6 hxg6 28. fxg6 Qxf1+ 29. Kxf1 Ra1+ 30. Kf2 Rb2+ 31. Ke3 Re1+ 32. Kf3 Rh1 33. Ke3 Re1+ 34. Kf3 Rf1+ 35. Ke3 a3 36. Qh7+ Kf8 37. Qh8+ Ke7 38. Qxg7+ Kd8 39. Qh8+ Kc7 40. g7 Re1+ 41. Kf3 Rf1+ 42. Ke3 Re1+ 43. Kf3 Rf1+ 44. Ke3 Bg4 45. Qd8+ Kxd8 46. g8Q+ Kc7 47. Qxg4 a2 48. Qg7+ Kb6 49. Qg8 Rf7 50. Qa8 Ra7 51. Qb8+ Rb7 52. Qa8 Ra7 53. Qb8+ Rb7 54. Qa8 1/2-1/2

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.05.28"]
[Round "7"]
[White "Matyszkiewicz, Wiktor"]
[Black "Pajak, Jakub Lech"]
[Result "0-1"]
[ECO "B78"]
[WhiteElo "1803"]
[BlackElo "1931"]
[PlyCount "72"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Bd7 10. Qd2 Rc8 11. 0-0-0 Nxd4 12. Bxd4 b5 13. Bxa7 b4 14. Nd5 Nxd5 15. exd5 Qa5 16. Bd4 Ba4 17. Qe3 Bxd4 18. Qxd4 Bxb3 19. axb3 Rc5 20. Qe4 Rfc8 21. Kb1 Ra8 22. Kc1 Qa1+ 23. Kd2 Qxb2 24. Qxb4 Rxc2+ 25. Kd3 Rc5 26. Ke3 Ra2 27. Rhe1 Qf2+ 28. Kf4 Qh4+ 29. g4 Qxh2+ 30. Ke3 Qe5+ 31. Qe4 Qc3+ 32. Qd3 Qb4 33. Qe4 Qxb3+ 34. Rd3 Rc3 35. Red1 Qxd1 36. Rxc3 Re2+ 0-1

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.05.19"]
[Round "6"]
[White "Podgorski, Maciej"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "1908"]
[BlackElo "1803"]
[PlyCount "49"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. Nf5 g6 9. Nh6 Nc6 10. Bg5 Bg7 11. 0-0 Nd4 12. f4 Bxh6 13. Bxf6 Rf8 14. Nd5 Qc6 15. c3 Ne6 16. fxe5 dxe5 17. Bxe5 Rd8 18. Qf3 f5 19. Qh3 Bg7 20. Bxg7 Nxg7 21. Qxh7 Rd7 22. Qh4 Rxd5 23. exd5 Qd6 24. Rae1+ Kd7 25. Qb4 1-0

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.05.12"]
[Round "5"]
[White "Matyszkiewicz, Wiktor"]
[Black "Ossolinski, Ziemowit"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1803"]
[BlackElo "1847"]
[PlyCount "110"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e6 5. Nf3 c5 6. Be3 Ng4 7. Bg1 Qa5 8. Qd2 a6 9. 0-0-0 b5 10. Kb1 c4 11. e5 d5 12. Ne2 b4 13. h3 c3 14. Qe1 Nh6 15. g4 Nb6 16. Ng3 Na4 17. b3 Nb2 18. Be3 Qa3 19. Bc1 Bd7 20. f5 a5 21. fxe6 fxe6 22. g5 a4 23. gxh6 axb3 24. cxb3 Qxa2+ 25. Kc2 Nxd1+ 26. Kxd1 Qxb3+ 27. Ke2 Ra2+ 28. Ke3 g6 29. Ne2 Bxh6+ 30. Kf2 Bxc1 31. Qxc1 Qc2 32. Qxc2 Rxc2 33. Ne1 Rd2 34. Ke3 Bb5 35. Nxc3 bxc3 36. Bxb5+ Ke7 37. Bd3 Rf8 38. Nc2 Rff2 39. h4 Rg2 40. Rh3 Rxc2 41. Bxc2 Rxc2 42. Kd3 Ra2 43. Rh1 c2 44. Rc1 Ra3+ 45. Kxc2 Rh3 46. Kd2 Rxh4 47. Ke3 g5 48. Rc7+ Kf8 49. Rc6 Kf7 50. Rc7+ Kg6 51. Re7 Rh3+ 52. Kf2 Kf5 53. Rf7+ Ke4 54. Rf6 Kxd4 55. Rxe6 Re3 0-1

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.05.04"]
[Round "4"]
[White "Potocki, Karol"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "1854"]
[BlackElo "1803"]
[PlyCount "124"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 d6 7. exd6 Qxd6 8. 0-0 c4 9. Bc2 Bg4 10. h3 h5 11. d4 cxd3 12. Qxd3 Qxd3 13. Bxd3 Bxf3 14. gxf3 Rd8 15. Be4 g6 16. a4 f5 17. Bxc6+ bxc6 18. Na3 Bh6 19. a5 Nd5 20. Bxh6 Rxh6 21. h4 Kf7 22. Nc4 Kf6 23. Rad1 Rhh8 24. Rd2 Nc7 25. Rfd1 Rd5 26. Rxd5 cxd5 27. Ne3 e6 28. f4 Rb8 29. Rd2 Rb5 30. b4 Ke7 31. Kf1 Ne8 32. Nc2 Nd6 33. f3 Rb7 34. Nd4 Nb5 35. Nxb5 Rxb5 36. Ke2 Rb7 37. Rd4 Kd6 38. Kd3 a6 39. Kc2 Kc6 40. Kb3 Re7 41. c4 Re8 42. Ka4 Re7 43. Rd1 dxc4 44. Rd4 e5 45. Rxc4+ Kb7 46. fxe5 Rxe5 47. Kb3 Re1 48. Rc3 Rh1 49. Kc4 Rxh4+ 50. Kc5 Rh1 51. Kd6 Rd1+ 52. Ke6 Rd4 53. Kf6 Rd6+ 54. Ke5 Rc6 55. Rb3 Kc7 56. Kf4 Rc1 57. b5 axb5 58. Rxb5 h4 59. a6 Ra1 60. Rb7+ Kc6 61. Rh7 Rxa6 62. Kg5 Kd5 1/2-1/2

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.04.28"]
[Round "3"]
[White "Matyszkiewicz, Wiktor"]
[Black "Polak, Michal"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "1803"]
[BlackElo "1928"]
[PlyCount "64"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 h6 10. Bxf6 Qxf6 11. Nf3 Qd8 12. Bd3 Qc7 13. f5 0-0-0 14. Kb1 Kb8 15. fxe6 fxe6 16. Bc4 Be7 17. Bb3 Bc8 18. Ne2 Bf6 19. Ned4 Rhe8 20. Nxc6+ Qxc6 21. e5 dxe5 22. Qe2 e4 23. Nd2 e3 24. Nc4 Qe4 25. Qxe3 Qxg2 26. Rhe1 Qxh2 27. Ba4 Rxd1+ 28. Rxd1 Rd8 29. Re1 Qh4 30. Bb3 Qd4 31. Qg3+ Ka7 32. a3 Bh4 0-1

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.04.23"]
[Round "2"]
[White "Poniewierski, Piotr"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "A24"]
[WhiteElo "1783"]
[BlackElo "1803"]
[PlyCount "74"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nc3 e5 7. d3 Nbd7 8. Rb1 a5 9. a3 c6 10. Bg5 h6 11. Bxf6 Nxf6 12. c5 Bg4 13. cxd6 Qxd6 14. b4 axb4 15. axb4 Nd5 16. Ne4 Qe7 17. Qb3 Kh7 18. h3 Bc8 19. b5 f5 20. Ned2 Ra3 21. Qc2 Nc3 22. bxc6 Nxb1 23. Nxb1 Ra7 24. Rc1 bxc6 25. Qxc6 Be6 26. Qb6 Rc8 27. Rxc8 Bxc8 28. Nc3 e4 29. Nd5 Qd7 30. dxe4 fxe4 31. Nh4 Ra6 32. Qc5 Rc6 33. Qa5 Qe6 34. Nf4 Qc4 35. Qd5 Qxd5 36. Nxd5 Re6 37. Nf4 Re8 1/2-1/2

[Event "Warsaw YMCA Spring-A 240th"]
[Site "Warsaw"]
[Date "2021.04.15"]
[Round "1"]
[White "Choroszej, Aleksander"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2033"]
[BlackElo "1803"]
[PlyCount "47"]
[EventDate "2021.04.16"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 0-0 8. Rb1 c5 9. Be2 Qc7 10. 0-0 b6 11. Re1 Bb7 12. Bd3 Nd7 13. Qe2 e5 14. d5 f5 15. Ng5 Qd6 16. Ne6 Rf7 17. a4 f4 18. f3 Nf6 19. Ba6 Ne8 20. Bxb7 Rxb7 21. Ba3 Bf6 22. Bxc5 Qd7 23. Bf2 Qxa4 24. Nc5 1-0

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.03.18"]
[Round "9"]
[White "Jaroszuk, Marcin"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "E68"]
[WhiteElo "1500"]
[BlackElo "1794"]
[PlyCount "76"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. c4 d6 6. d4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. Re1 Ne5 11. b3 a5 12. h3 Ned7 13. Be3 a4 14. Qc2 Nb6 15. Ndb5 axb3 16. axb3 Rxa1 17. Rxa1 Nbd7 18. Ra8 Nf8 19. Na7 Qd7 20. Bg5 h6 21. Bxf6 Bxf6 22. Nd5 Kg7 23. Qd2 h5 24. h4 Ne6 25. Bh3 b6 26. Rxc8 Rxc8 27. Nxf6 Kxf6 28. e5+ Ke7 29. exd6+ cxd6 30. Nxc8+ Qxc8 31. Qd5 Qc5 32. Bxe6 fxe6 33. Qb7+ Kf6 34. Qf3+ Qf5 35. Qe3 Qc5 36. Qf3+ Qf5 37. Qe3 Qc5 38. Qf3+ Qf5 1/2-1/2

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.03.04"]
[Round "7"]
[White "Haliniak, Wojciech"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B88"]
[WhiteElo "1779"]
[BlackElo "1794"]
[PlyCount "64"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Nf3 e6 5. Bc4 Nf6 6. d4 cxd4 7. Nxd4 a6 8. Bb3 Be7 9. Be3 0-0 10. Qf3 Qc7 11. 0-0 Rb8 12. Qg3 b5 13. e5 Ne8 14. f5 Nxd4 15. Bxd4 dxe5 16. fxe6 f6 17. Rae1 Qd6 18. Nd5 Bxe6 19. Nxe7+ Qxe7 20. Bxe5 fxe5 21. Rxf8+ Kxf8 22. Qxe5 Qa7+ 23. Kh1 Bxb3 24. axb3 Nf6 25. Qd6+ Kg8 26. Re7 Qb6 27. Qg3 g6 28. Qe5 Rd8 29. h3 Rd1+ 30. Kh2 Qg1+ 31. Kg3 Nh5+ 32. Kh4 Qf2+ 0-1

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.03.01"]
[Round "11"]
[White "Matyszkiewicz, Wiktor"]
[Black "Prus, Marek"]
[Result "1/2-1/2"]
[ECO "C60"]
[WhiteElo "1794"]
[BlackElo "1705"]
[PlyCount "148"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 g6 5. c3 Bg7 6. d4 exd4 7. cxd4 d5 8. exd5 Nxd5 9. Ne5 Qd6 10. Nc3 Nxc3 11. bxc3 0-0 12. Bxc6 bxc6 13. Qa4 c5 14. Ba3 Bxe5 15. dxe5 Qxe5 16. Rfe1 Qxc3 17. Rac1 Qd4 18. Qxd4 cxd4 19. Bxf8 Kxf8 20. Red1 Be6 21. a3 a5 22. Rxd4 a4 23. Rxc7 Rb8 24. Rc1 Bb3 25. f3 Re8 26. Kf2 Kg7 27. Re4 Rd8 28. Ke3 Rd5 29. Rd4 Re5+ 30. Kd3 Re6 31. Kc3 Rc6+ 32. Kd2 Re6 33. Rc3 Rb6 34. Rb4 Rd6+ 35. Rd3 Ra6 36. Rbxb3 axb3 37. Rxb3 Kf6 38. Kc3 Ke6 39. Kc4 Kd7 40. Kb5 Ra8 41. a4 Rb8+ 42. Kc4 Rc8+ 43. Kd5 Ra8 44. Rb4 Ra5+ 45. Kc4 Kc6 46. Kb3 Ra7 47. Rc4+ Kd5 48. Kc3 Ra5 49. Rd4+ Kc5 50. Re4 Ra7 51. Kb3 Rb7+ 52. Ka3 Ra7 53. g4 Rd7 54. Re3 Kb6 55. Rc3 Rd4 56. Kb3 Rf4 57. Rc4 Rxf3+ 58. Kb4 f5 59. a5+ Kb7 60. gxf5 Rxf5 61. Re4 Rf7 62. h3 Ka7 63. Re5 Rf4+ 64. Kb5 Rf5 65. Rxf5 gxf5 66. Kc5 Ka6 67. Kd5 Kxa5 68. Ke5 Kb6 69. Kxf5 Kc7 70. Kf6 Kd7 71. Kf7 h6 72. Kg6 Ke7 73. Kxh6 Kf7 74. Kh7 Kf8 1/2-1/2

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.02.24"]
[Round "6"]
[White "Matyszkiewicz, Wiktor"]
[Black "Basiaga, Sebastian"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "1794"]
[BlackElo "1716"]
[PlyCount "90"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. d3 d6 6. c3 0-0 7. h3 h6 8. Re1 Bb6 9. Nbd2 Ne7 10. Nf1 Ng6 11. Ng3 c6 12. d4 exd4 13. Nxd4 d5 14. exd5 Nxd5 15. Qd3 Qf6 16. Bxd5 cxd5 17. Be3 Ne5 18. Qc2 Bd7 19. Ndf5 Rfe8 20. Rad1 Nc4 21. Bd4 Bxd4 22. Nxd4 g6 23. Nf1 Kg7 24. Nd2 b5 25. N2f3 a6 26. Rxe8 Rxe8 27. Re1 Rxe1+ 28. Nxe1 Nd6 29. Nd3 Nf5 30. Nxf5+ Bxf5 31. Qd2 d4 32. Nb4 d3 33. Kf1 Qd6 34. a3 a5 35. Na2 Qh2 36. f3 Bxh3 37. Qxd3 Bxg2+ 38. Ke1 Qg1+ 39. Kd2 Qf2+ 40. Qe2 Qxf3 41. Qxb5 Qf4+ 42. Ke1 h5 43. Qe2 Bf3 44. Qd3 Qg3+ 45. Kd2 Qf2+ 0-1

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.02.18"]
[Round "5"]
[White "Safanowski, Tomasz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1832"]
[BlackElo "1794"]
[PlyCount "76"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. Nc3 d5 5. Qd2 0-0 6. Ne5 c5 7. dxc5 Nc6 8. f3 Qa5 9. Nxc6 bxc6 10. Be5 Qxc5 11. e3 Qa5 12. b3 Ne4 13. Nxe4 Qxd2+ 14. Nxd2 Bxe5 15. Rc1 Bc3 16. Bd3 Be6 17. Ke2 c5 18. Rb1 Rac8 19. Rhd1 f5 20. Kf2 Rfd8 21. Be2 Kf7 22. f4 Rc6 23. Nf3 Bc8 24. Rd3 Bf6 25. Rbd1 e6 26. c4 Rcd6 27. Ne5+ Ke7 28. Bf3 Bb7 29. g4 Bxe5 30. fxe5 R6d7 31. g5 Bc6 32. Kg3 dxc4 33. Rxd7+ Rxd7 34. Rxd7+ Kxd7 35. bxc4 Bxf3 36. Kxf3 Kc6 37. e4 fxe4+ 38. Kxe4 Kb6 0-1

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.02.10"]
[Round "4"]
[White "Matyszkiewicz, Wiktor"]
[Black "Mazurek, Jerzy"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1794"]
[BlackElo "1704"]
[PlyCount "38"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 0-0 8. Qd2 Nc6 9. 0-0-0 d5 10. Nxc6 bxc6 11. Bh6 Be6 12. e5 Nd7 13. h4 Bxe5 14. Bxf8 Nxf8 15. Ne2 Rb8 16. c3 Qa5 17. a3 Bf5 18. Nd4 Qxa3 19. Qc2 Bf4+ 0-1

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.02.04"]
[Round "3"]
[White "Sloniewska, Alicja"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "D80"]
[WhiteElo "1664"]
[BlackElo "1794"]
[PlyCount "64"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Nxe4 dxe4 6. e3 Bg7 7. Ne2 0-0 8. Nc3 h6 9. Bf4 f5 10. h3 c5 11. d5 Nd7 12. Qc2 Ne5 13. Be2 Bd7 14. 0-0 Kh8 15. Rfd1 Qe8 16. Rab1 a5 17. b3 g5 18. Bxe5 Bxe5 19. a3 Qg6 20. b4 axb4 21. axb4 g4 22. hxg4 Qf6 23. Rdc1 Ra3 24. Nd1 fxg4 25. g3 Ba4 26. Qd2 Bxd1 27. Bxd1 Bxg3 28. Rc2 Be5 29. bxc5 Qh4 30. c6 Qh2+ 31. Kf1 g3 32. Bg4 Qh1+ 0-1

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.01.26"]
[Round "2"]
[White "Matyszkiewicz, Wiktor"]
[Black "Mlynarski, Zbigniew"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "1794"]
[BlackElo "1568"]
[PlyCount "59"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 Be7 8. dxe5 0-0 9. Bd5 Nc5 10. Bf4 Bb7 11. Nc3 Kh8 12. a4 b4 13. Ne4 Ne6 14. Bg3 Qc8 15. Re1 Na5 16. Bxb7 Nxb7 17. Nd4 Nbc5 18. Nf5 Bd8 19. Nxc5 Nxc5 20. Qd4 Ne6 21. Qxb4 Rb8 22. Qc3 g6 23. Ne3 Be7 24. Nd5 Bc5 25. Bh4 g5 26. Bxg5 Nxg5 27. Qxc5 d6 28. Qc3 Qf5 29. exd6+ f6 30. dxc7 1-0

[Event "Warsaw YMCA Winter-B 237th"]
[Site "Warsaw"]
[Date "2021.01.21"]
[Round "1"]
[White "Leszczynski, Bartosz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "1841"]
[BlackElo "1794"]
[PlyCount "60"]
[EventDate "2021.01.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 h6 7. Be3 Nbd7 8. Qd2 Kh7 9. f3 c5 10. d5 Ne5 11. g4 Ne8 12. h4 Nc7 13. a4 Na6 14. Nh3 Nb4 15. Nf2 f5 16. h5 f4 17. Bxf4 Rxf4 18. Qxf4 Nc2+ 19. Kd2 Nxa1 20. Rxa1 g5 21. Qe3 Qa5 22. Kc2 Bd7 23. b3 Rf8 24. Rf1 a6 25. Nfd1 Rf4 26. Qd2 Qd8 27. Nb2 Qf8 28. Qd1 Qf6 29. Bd3 Kg8 30. Be2 Nc6 0-1

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.12.16"]
[Round "12"]
[White "Matyszkiewicz, Wiktor"]
[Black "Sloniewska, Alicja"]
[Result "1/2-1/2"]
[ECO "B14"]
[WhiteElo "1803"]
[BlackElo "1755"]
[PlyCount "60"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 e6 7. Bg5 Be7 8. c5 0-0 9. Bb5 Qc7 10. 0-0 Bd7 11. a3 b6 12. b4 Ne4 13. Bd2 Bf6 14. Bxc6 Bxc6 15. Qe2 bxc5 16. bxc5 Rab8 17. Rab1 h6 18. g3 Nxd2 19. Qxd2 Rfd8 20. Qe2 Qa5 21. Ne5 Rxb1 22. Rxb1 Bxe5 23. Qxe5 Qxc3 24. Qc7 Rf8 25. Qxc6 Qxd4 26. Qd6 Qe4 27. Rb8 Qe1+ 28. Kg2 Qe4+ 29. Kg1 Qe1+ 30. Kg2 Qe4+ 1/2-1/2

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.12.10"]
[Round "11"]
[White "Nawalaniec, Adam"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B73"]
[WhiteElo "1549"]
[BlackElo "1803"]
[PlyCount "104"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 g6 7. Be3 Bg7 8. 0-0 0-0 9. Qd2 Ng4 10. Bc4 Nxe3 11. fxe3 Ne5 12. Bd5 a6 13. a4 Qc7 14. a5 Bd7 15. Na4 Bxa4 16. Rxa4 e6 17. Ba2 Qe7 18. Rb4 Bh6 19. Ne2 Rac8 20. Rd4 Rc6 21. Nf4 Rfc8 22. c3 Bf8 23. Qf2 Rc5 24. Nd3 Nxd3 25. Rxd3 Rxa5 26. Bb3 Rac5 27. Qg3 b5 28. Rd2 R8c7 29. Rdf2 Qe8 30. Qg4 Bg7 31. h4 a5 32. h5 a4 33. Ba2 Re5 34. g3 Bh6 35. hxg6 hxg6 36. Kg2 Bxe3 37. Rf3 Bh6 38. Rh1 Rg5 39. Qf4 Rh5 40. Qg4 Rxh1 41. Kxh1 Qe7 42. Rd3 Bg7 43. Kg2 Be5 44. Rd1 a3 45. Rb1 axb2 46. Rxb2 Rxc3 47. Rxb5 Rxg3+ 48. Qxg3 Bxg3 49. Kxg3 Qa7 50. Bb1 Qe3+ 51. Kh4 Qf4+ 52. Kh3 Qf1+ 0-1

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.12.03"]
[Round "10"]
[White "Matyszkiewicz, Wiktor"]
[Black "Safanowski, Tomasz"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "1803"]
[BlackElo "1821"]
[PlyCount "62"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 0-0 8. Nf3 c5 9. Qd2 Nc6 10. 0-0-0 a6 11. Kb1 b5 12. dxc5 b4 13. Ne2 Nxc5 14. Ned4 Nxd4 15. Nxd4 Ne4 16. Qe3 f5 17. Bd3 Bd7 18. Rhg1 a5 19. Bxe4 fxe4 20. Rd2 a4 21. Rc1 a3 22. b3 Rac8 23. c3 Rxc3 24. Rxc3 bxc3 25. Rc2 Qb4 26. g3 Rc8 27. f5 Qc5 28. Qg5 Qxd4 29. f6 Qd1+ 30. Rc1 c2+ 31. Ka1 Qd4# 0-1

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.11.26"]
[Round "9"]
[White "Matyszkiewicz, Wiktor"]
[Black "Nawalaniec, Adam"]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "1803"]
[BlackElo "1549"]
[PlyCount "159"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Bb7 9. d3 d6 10. c3 Na5 11. Bc2 c5 12. Nbd2 Qb6 13. Nf1 Nc6 14. Ng3 h6 15. Nf5 Rad8 16. N3h4 d5 17. Qf3 Ne8 18. exd5 Rxd5 19. Bb3 Rd6 20. Nxd6 Nxd6 21. Ng6 c4 22. Nxf8 cxb3 23. Nd7 Qc7 24. Nc5 Nd4 25. Qxb7 Nxb7 26. cxd4 Bxc5 27. dxc5 Nxc5 28. axb5 axb5 29. Rd1 Na4 30. Rb1 Qc2 31. Be3 b4 32. d4 Nxb2 33. Rdc1 Nc4 34. d5 Qe4 35. Rd1 b2 36. Bc5 Qg4 37. d6 Na3 38. f3 Qc4 39. d7 Qxc5+ 40. Kh1 Qc2 41. d8Q+ Kh7 42. Qd2 Qxd2 43. Rxd2 Nxb1 44. Rxb2 Nc3 45. Rxb4 f6 46. Kg1 Kg6 47. Kf2 h5 48. Rc4 Nd5 49. Rc5 Nf4 50. Ra5 h4 51. Ra2 Kf5 52. g3 hxg3+ 53. hxg3 Ne6 54. Ke3 Nd4 55. Ra7 g6 56. Ra6 Nc2+ 57. Ke2 Nd4+ 58. Kf2 Nc2 59. g4+ Kg5 60. Kg3 Nd4 61. Kf2 f5 62. gxf5 gxf5 63. Ke3 Nc2+ 64. Kf2 Kf4 65. Ra4+ Nd4 66. Rc4 Kg5 67. Ke3 Ne6 68. Rc6 Kf6 69. Kd3 Ke7 70. Rc3 Kd6 71. Kc4 e4 72. fxe4 fxe4 73. Rh3 Ke5 74. Kc3 Nf4 75. Rh8 Nd5+ 76. Kd2 Kd4 77. Rd8 e3+ 78. Ke2 Ke4 79. Rxd5 Kxd5 80. Kxe3 1/2-1/2

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.11.18"]
[Round "8"]
[White "Jaroszuk, Marcin"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "1572"]
[BlackElo "1803"]
[PlyCount "74"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. c4 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 a5 9. h3 exd4 10. Nxd4 Nc5 11. Be3 Re8 12. Qc2 Qe7 13. Bg5 h6 14. Nd5 Qd8 15. Nxf6+ Bxf6 16. Bxf6 Qxf6 17. Rad1 Bd7 18. b3 Re7 19. Rfe1 Rae8 20. f3 Qg5 21. Qf2 f5 22. f4 Qf6 23. e5 dxe5 24. Nxf5 Bxf5 25. Qxc5 b6 26. Qd5+ Kg7 27. fxe5 Rxe5 28. Rxe5 Rxe5 29. Qf3 Qe7 30. Qa8 Re2 31. Rd8 Be4 32. Rg8+ Kf7 33. Bxe4 Qc5+ 34. Kh1 Re1+ 35. Kg2 Qg1+ 36. Kf3 Qe3+ 37. Kg4 Qg5+ 0-1

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.11.05"]
[Round "7"]
[White "Matyszkiewicz, Wiktor"]
[Black "Tarka, Aleksandra"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1803"]
[BlackElo "1586"]
[PlyCount "59"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bc5 7. Bf4 0-0 8. Bd6 Qb6 9. Bxc5 Qxc5 10. Be2 a6 11. Nd6 Nd4 12. Nxc8 Raxc8 13. 0-0 b5 14. a3 e5 15. Kh1 Ne6 16. Bd3 Rfd8 17. Qf3 Nf4 18. Rad1 Rc6 19. g3 Nxd3 20. Qxd3 b4 21. axb4 Qxb4 22. Nd5 Nxd5 23. exd5 Rb6 24. b3 e4 25. Qe2 Re8 26. Ra1 Qc3 27. Rfe1 a5 28. Qe3 Qb4 29. Ra4 Qf8 30. Qxb6 1-0

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.10.29"]
[Round "6"]
[White "Sypula, Krzysztof"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "E73"]
[WhiteElo "1661"]
[BlackElo "1803"]
[PlyCount "176"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 h6 7. Bf4 Nbd7 8. Qc1 Kh7 9. Nf3 c5 10. d5 a6 11. 0-0 Rb8 12. e5 Ne8 13. Qe3 dxe5 14. Nxe5 Nxe5 15. Bxe5 Bxe5 16. Qxe5 Qd6 17. Qe3 Nf6 18. Rfe1 Bd7 19. Bd3 Rfe8 20. Rad1 Kg7 21. h3 b5 22. b3 b4 23. Ne4 Nxe4 24. Qxe4 a5 25. g4 a4 26. Re3 axb3 27. axb3 Ra8 28. f4 Qf6 29. Qe5 Ra2 30. Bf1 g5 31. f5 Qxe5 32. Rxe5 Ra6 33. Rde1 Kf8 34. Bd3 Ra3 35. Bc2 Ra2 36. R1e2 Rea8 37. Kf2 Re8 38. R5e3 Ra6 39. Kg3 Ra7 40. Kf2 f6 41. Rd3 Ra2 42. Rde3 Kf7 43. Kf3 Ra7 44. Ke4 h5 45. Kf3 hxg4+ 46. hxg4 Bc8 47. Rh2 Kg7 48. d6 Rd7 49. Rd2 Kf7 50. Be4 Rxd6 51. Rde2 Rd7 52. Bd5+ Kf8 53. Rh2 Kg7 54. Ke4 Rh8 55. Rhe2 Rh4 56. Rg3 Kf8 57. Ra2 Bb7 58. Bxb7 Rxb7 59. Ra5 Rc7 60. Kd5 Rh1 61. Ke4 Re1+ 62. Kf3 Rd1 63. Ke2 Rd8 64. Rh3 Ke8 65. Re3 Rd4 66. Kf3 Kd7 67. Ra6 Rd6 68. Ra8 e5 69. fxe6+ Rxe6 70. Rd3+ Rd6 71. Re3 Re6 72. Rd3+ Rd6 73. Re3 Rb7 74. Ree8 Kc6 75. Ra5 Rd3+ 76. Ke4 Rxb3 77. Re6+ Kd7 78. Rxf6 Rc3 79. Kd5 Ke7 80. Rg6 Kf7 81. Raa6 b3 82. Rgf6+ Ke7 83. Rae6+ Kd8 84. Kc6 Rc7+ 85. Kb6 b2 86. Rd6+ Rd7 87. Kc6 Rxd6+ 88. Kxd6 Rd3+ 0-1

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.10.20"]
[Round "5"]
[White "Matyszkiewicz, Wiktor"]
[Black "Safanowski, Tomasz"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1803"]
[BlackElo "1821"]
[PlyCount "89"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. 0-0 0-0 7. h3 c6 8. a4 b6 9. Be3 Bb7 10. Bb3 a6 11. Qd3 Qc7 12. d5 cxd5 13. Bxd5 Nxd5 14. Nxd5 Bxd5 15. Qxd5 Nf6 16. Qb3 Rab8 17. Nd2 Rfd8 18. c4 Qc6 19. f3 b5 20. cxb5 axb5 21. Rfc1 bxa4 22. Rxc6 axb3 23. Ra7 Bf8 24. Bb6 Rd7 25. Bc7 Rc8 26. Nxb3 Ne8 27. Ba5 Rxa7 28. Rxc8 Nf6 29. Bc3 Nd7 30. Na5 f5 31. b4 fxe4 32. fxe4 Kf7 33. b5 Be7 34. Rc6 d5 35. exd5 Nb6 36. d6 Nd5 37. dxe7 Nxc3 38. Rc8 Rxe7 39. Rxc3 Ra7 40. Nc6 Ra1+ 41. Kf2 Rb1 42. Rc5 Ke6 43. Rxe5+ Kd6 44. Ke2 Rb2+ 45. Kf3 1-0

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.10.15"]
[Round "4"]
[White "Borys, Marek"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "1480"]
[BlackElo "1803"]
[PlyCount "81"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d5 6. cxd5 Nxd5 7. 0-0 c5 8. e4 Nxc3 9. bxc3 Nc6 10. Ba3 b6 11. Qe2 Qc7 12. Rac1 Bg4 13. h3 Bxf3 14. Bxf3 Rad8 15. Bg2 Qd7 16. d4 cxd4 17. cxd4 Nxd4 18. Qa6 f5 19. exf5 Rxf5 20. Bb4 Nf3+ 21. Kh1 Rdf8 22. Qc4+ Kh8 23. Rcd1 Qa4 24. Rc1 Ne5 25. Qb3 Qxb3 26. axb3 Nd3 27. Bxe7 Re8 28. Rc7 Nxf2+ 29. Kg1 Bd4 30. Rxa7 Rf7 31. Ra4 Be3 32. Ba3 Nxh3+ 33. Kh2 Rxf1 34. Bxf1 Ng5 35. Bb2+ Kg8 36. Bc4+ Kf8 37. Ra7 Re7 38. Ra8+ Re8 39. Ra7 Re7 40. Ra8+ Re8 41. Ra7 1/2-1/2

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.10.08"]
[Round "3"]
[White "Matyszkiewicz, Wiktor"]
[Black "Mlynarski, Zbigniew"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "1803"]
[BlackElo "1548"]
[PlyCount "57"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. 0-0 a6 5. Ba4 g6 6. d4 b5 7. Bb3 exd4 8. Nxd4 Bg7 9. Be3 0-0 10. Nc3 Bb7 11. a4 b4 12. Nd5 h6 13. Qd2 Kh7 14. Nxc6 Nxc6 15. Nxb4 Bxb2 16. Bxh6 Bxa1 17. Bxf8 Qxf8 18. Nxc6 Bg7 19. Qxd7 Qc5 20. Nd8 Bxe4 21. Nxf7 Bf5 22. Qd2 Re8 23. Qf4 Qd4 24. Qxc7 Re2 25. Ng5+ Kh6 26. Nf3 Qb4 27. Bc4 Rxc2 28. Qf4+ Kh7 29. Bg8+ 1-0

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.10.06"]
[Round "1"]
[White "Matyszkiewicz, Wiktor"]
[Black "Wilczynski, Adam"]
[Result "1/2-1/2"]
[ECO "B95"]
[WhiteElo "1803"]
[BlackElo "1525"]
[PlyCount "81"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Be7 7. f4 h6 8. Bxf6 Bxf6 9. Qd2 Nc6 10. Nb3 a6 11. 0-0-0 Be7 12. Kb1 0-0 13. g4 b5 14. h4 Bb7 15. g5 h5 16. Bh3 b4 17. Ne2 a5 18. f5 exf5 19. exf5 Ne5 20. Rhf1 a4 21. Nbd4 b3 22. cxb3 axb3 23. Nxb3 Be4+ 24. Ka1 Nc4 25. Qc3 Rxa2+ 26. Kxa2 Qa8+ 27. Na5 Nxa5 28. Qa3 Nc4 29. Qxa8 Rxa8+ 30. Kb3 Ne3 31. Nf4 Bc2+ 32. Kc3 Bxd1 33. Re1 Rc8+ 34. Kd2 Nc4+ 35. Kxd1 Nxb2+ 36. Kd2 Nc4+ 37. Kd1 Nb2+ 38. Kd2 Nc4+ 39. Kd1 Nb2+ 40. Kd2 Nc4+ 41. Kd1 1/2-1/2

[Event "Warsaw YMCA Autumn-B 237th"]
[Site "Warsaw"]
[Date "2020.10.02"]
[Round "2"]
[White "Sloniewska, Alicja"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "1755"]
[BlackElo "1803"]
[PlyCount "85"]
[EventDate "2020.09.24"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "POL"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Nbd7 8. 0-0 Nc5 9. Qc2 a5 10. Be3 b6 11. Nd2 Ng4 12. Bxg4 Bxg4 13. a3 f5 14. f3 Bh5 15. b4 Nd7 16. Nb5 f4 17. Bf2 g5 18. c5 dxc5 19. bxc5 g4 20. cxb6 cxb6 21. Qb3 g3 22. hxg3 fxg3 23. Bxg3 Qg5 24. Be1 Rf6 25. Rf2 Nc5 26. Qc3 Raf8 27. Kf1 Be8 28. Rb1 Rh6 29. Ke2 Rh2 30. g4 Rh3 31. Nd6 Bd7 32. Nf5 Rc8 33. Qe3 Qd8 34. Nxg7 Kxg7 35. Nc4 Na4 36. Nxe5 Rh1 37. Nxd7 Qxd7 38. Qg5+ Kh8 39. Qe5+ Kg8 40. Ke3 Rxe1+ 41. Rxe1 Rc3+ 42. Kf4 Qf7+ 43. Kg3 1-0

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.03.15"]
[Round "13"]
[White "Matyszkiewicz, Wiktor"]
[Black "Szewczyk, Mariusz1"]
[Result "0-1"]
[ECO "C88"]
[WhiteElo "1902"]
[BlackElo "2022"]
[PlyCount "58"]
[EventDate "2020.01.10"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. a4 Rb8 9. c3 d6 10. d3 Na5 11. Bc2 c5 12. Nbd2 b4 13. h3 Be6 14. Nb3 Bxb3 15. Bxb3 bxc3 16. Ra3 Qb6 17. Bc2 cxb2 18. Bd2 Rfc8 19. Bxa5 Qxa5 20. Nd2 Rb4 21. Nc4 Qc7 22. a5 Rcb8 23. Nb6 Bd8 24. Qb1 Qb7 25. Nc4 Bc7 26. Re2 d5 27. Ne3 dxe4 28. dxe4 Nxe4 29. Nf5 g6 0-1

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.03.06"]
[Round "10"]
[White "Ossolinski, Ziemowit"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "1880"]
[BlackElo "1902"]
[PlyCount "45"]
[EventDate "2020.01.10"]
[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. Ne2 Nc6 3. c4 Nf6 4. Nbc3 d6 5. d4 cxd4 6. Nxd4 g6 7. Be2 Bg7 8. Be3 0-0 9. 0-0 Bd7 10. Nc2 Ne5 11. f3 Qc7 12. Na3 a6 13. Rc1 b6 14. Qe1 Be6 15. Qf2 Nfd7 16. Nd5 Bxd5 17. cxd5 Qb7 18. f4 Nc5 19. fxe5 Bxe5 20. Nc4 Bg7 21. Qh4 b5 22. Na5 Qc7 23. b4 1-0

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.02.28"]
[Round "9"]
[White "Matyszkiewicz, Wiktor"]
[Black "Liberadzki, Slawomir"]
[Result "0-1"]
[ECO "B49"]
[WhiteElo "1902"]
[BlackElo "1981"]
[PlyCount "102"]
[EventDate "2020.01.10"]
[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 a6 7. Nc3 Nf6 8. Be3 Bb4 9. Nxc6 bxc6 10. Na4 Be7 11. Qd4 Rb8 12. c4 d6 13. c5 e5 14. Qd3 d5 15. f4 dxe4 16. Qc2 Nd5 17. Bd2 e3 18. Bc3 Nxc3 19. Qxc3 0-0 20. fxe5 Be6 21. Qxe3 Rfe8 22. b3 f6 23. Bxa6 Qxe5 24. Rae1 Bd5 25. Qxe5 fxe5 26. Rxe5 Bxc5+ 27. Nxc5 Rxe5 28. Nd7 Rg5 29. Rf2 Rd8 30. Nb6 Be4 31. Bc4+ Bd5 32. Rd2 Kf8 33. a4 Ke7 34. Bxd5 cxd5 35. b4 Kd6 36. Nc4+ Kc7 37. Na5 d4 38. Rc2+ Kd7 39. b5 Ra8 40. Nb3 Rd5 41. Rc4 d3 42. Nd2 Ke6 43. Kf2 Re5 44. Re4 Rxe4 45. Nxe4 Kd5 46. Nd2 Kd4 47. a5 Kc3 48. Nb1+ Kc2 49. Ke3 Rxa5 50. Nd2 Rxb5 51. Nf3 Rb8 0-1

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.02.15"]
[Round "7"]
[White "Warszawski, Bartosz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B89"]
[WhiteElo "2172"]
[BlackElo "1902"]
[PlyCount "77"]
[EventDate "2020.01.10"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Bd7 8. 0-0 a6 9. a3 Be7 10. f4 0-0 11. Qf3 Nxd4 12. Bxd4 Bc6 13. Qg3 Qa5 14. b4 Qc7 15. Bd3 Rfd8 16. e5 Ne8 17. Qf2 Qd7 18. Bb6 Rdc8 19. Ne4 Bxe4 20. Bxe4 d5 21. Bd3 a5 22. f5 axb4 23. Bd4 g6 24. fxg6 fxg6 25. Qf7+ Kh8 26. Rf3 Ng7 27. Rh3 Qe8 28. Qxe8+ Nxe8 29. Bxg6 Kg7 30. Bd3 h6 31. a4 Bc5 32. Bxc5 Rxc5 33. Rf1 Kh8 34. Rxh6+ Kg8 35. Rxe6 Ng7 36. Re7 Re8 37. Rxb7 Rxe5 38. Bg6 Rc8 39. Rf3 1-0

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.02.14"]
[Round "6"]
[White "Matyszkiewicz, Wiktor"]
[Black "Szwaj, Jacek"]
[Result "0-1"]
[ECO "B63"]
[WhiteElo "1902"]
[BlackElo "1937"]
[PlyCount "40"]
[EventDate "2020.01.10"]
[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 Nf6 5. Nc3 d6 6. Bg5 Be7 7. f4 h6 8. Bh4 Nc6 9. Qd2 Nxe4 10. Nxe4 Bxh4+ 11. g3 Be7 12. Nxc6 bxc6 13. Qc3 0-0 14. Bg2 Qb6 15. 0-0-0 d5 16. Nd2 a5 17. Nf3 Bb4 18. Qe5 f6 19. Qh5 Rb8 20. a3 Bc5 0-1

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.02.07"]
[Round "5"]
[White "Swierczewski, Marek"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2090"]
[BlackElo "1902"]
[PlyCount "52"]
[EventDate "2020.01.10"]
[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 Nc6 3. c3 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 d6 7. exd6 Qxd6 8. 0-0 g6 9. d4 cxd4 10. Nxd4 Nxd4 11. Qxd4 Qxd4 12. cxd4 Bg7 13. d5 Bf5 14. Nc3 Rc8 15. Be3 0-0 16. Rac1 Nc4 17. Bxc4 Rxc4 18. Bxa7 Rfc8 19. Rfe1 b5 20. a3 b4 21. axb4 Rxb4 22. Re2 Bxc3 23. bxc3 Rxc3 24. Ra1 Rc7 25. Be3 Rcb7 26. h3 Rb1+ 1/2-1/2

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.01.31"]
[Round "4"]
[White "Matyszkiewicz, Wiktor"]
[Black "Malicka, Maria"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "1902"]
[BlackElo "2041"]
[PlyCount "120"]
[EventDate "2020.01.10"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7 8. Qf3 Qc7 9. 0-0-0 b5 10. g4 b4 11. Nce2 Bb7 12. Ng3 Be7 13. Kb1 Rc8 14. Qe2 Nc5 15. Bg2 0-0 16. Bxf6 Bxf6 17. g5 Bxd4 18. Rxd4 e5 19. Rd2 Ne6 20. Nf5 Nxf4 21. Qg4 d5 22. exd5 Bxd5 23. Bxd5 Nxd5 24. Qe4 Ne7 25. Re1 Nxf5 26. Qxf5 Rfd8 27. Rde2 g6 28. Qf6 Qd6 29. Qxd6 Rxd6 30. Kc1 Rdc6 31. Rd2 Rc5 32. Ree2 R8c7 33. h4 Kg7 34. Rd8 a5 35. Re8 f6 36. Re6 fxg5 37. hxg5 e4 38. Rg2 Rc4 39. Re5 a4 40. b3 axb3 41. axb3 Rc3 42. Kb2 e3 43. Re2 R3c5 44. Re4 Rxg5 45. Rxb4 Re5 46. Rd4 h5 47. c4 g5 48. b4 h4 49. Kb3 Kg6 50. b5 h3 51. Kb4 h2 52. Rd1 Rh7 53. Rh1 g4 54. c5 g3 55. c6 Rhh5 56. b6 Rb5+ 57. Kc4 Rxb6 58. Rxe3 Rxc6+ 59. Kd4 Rd6+ 60. Kc4 Rg5 0-1

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.01.24"]
[Round "3"]
[White "Delega, Tomasz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "1974"]
[BlackElo "1902"]
[PlyCount "109"]
[EventDate "2020.01.10"]
[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 Nc6 3. Bb5 d6 4. 0-0 Nf6 5. Re1 e5 6. c3 Bd7 7. d4 Qc7 8. d5 Ne7 9. a4 Ng6 10. Na3 Be7 11. Qc2 0-0 12. Bxd7 Qxd7 13. Nc4 h6 14. Ne3 b5 15. axb5 Qxb5 16. c4 Qb7 17. Nf5 Rfb8 18. Re3 Bf8 19. Rea3 Qc7 20. Bd2 Rb7 21. g3 Rab8 22. Bc3 Ne7 23. Nxe7+ Qxe7 24. Kg2 Qd7 25. Nd2 Be7 26. Qa4 Rd8 27. f3 Qxa4 28. Rxa4 Rdd7 29. f4 Ng4 30. h3 Ne3+ 31. Kf3 Nc2 32. Rc1 Nd4+ 33. Bxd4 exd4 34. b3 Kf8 35. h4 Bf6 36. Re1 Re7 37. Ra6 Rb6 38. Ra3 d3 39. Re3 Bb2 40. Ra2 Bc1 41. Rxd3 Reb7 42. e5 Bxd2 43. Raxd2 Rxb3 44. exd6 Ke8 45. Ke4 Kd7 46. Ke5 Rb8 47. Rxb3 Rxb3 48. Ra2 Re3+ 49. Kf5 Rxg3 50. Rxa7+ Kxd6 51. Ra6+ Ke7 52. d6+ Kd7 53. Ke5 Rd3 54. Ra7+ Ke8 55. Re7+ 1-0

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.01.17"]
[Round "2"]
[White "Matyszkiewicz, Wiktor"]
[Black "Choroszej, Aleksander"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1902"]
[BlackElo "2055"]
[PlyCount "44"]
[EventDate "2020.01.10"]
[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 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. Qd2 b5 6. 0-0-0 Bb7 7. f3 Nd7 8. h4 h5 9. Nh3 c6 10. Ng5 Qc7 11. g3 Ngf6 12. Bh3 Nb6 13. b3 a5 14. Ne2 0-0 15. g4 c5 16. gxh5 Nxh5 17. Nf4 cxd4 18. Bf2 Nxf4 19. Qxf4 Qc3 20. h5 Be5 21. Qh4 Rac8 22. Bxc8 Rxc8 0-1

[Event "Warsaw YMCA Winter-A 224th"]
[Site "Warsaw"]
[Date "2020.01.10"]
[Round "1"]
[White "Kaniak, Justyna"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "1840"]
[BlackElo "1902"]
[PlyCount "50"]
[EventDate "2020.01.10"]
[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 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 b5 10. Nxc6 Bxc6 11. e5 dxe5 12. Qe2 Qa5 13. Qxe5 Be7 14. Bd3 0-0 15. Kb1 h6 16. Bh4 Rac8 17. Ne4 Bxe4 18. Bxe4 Rc5 19. Qd4 Rc4 20. Qd3 Nxe4 21. Bxe7 Rfc8 22. Rhf1 b4 23. Rde1 b3 24. axb3 Nd2+ 25. Kc1 Nxf1 0-1

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.12.12"]
[Round "13"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kosny, Marek"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1844"]
[BlackElo "1861"]
[PlyCount "57"]
[EventDate "2019.09.20"]
[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 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bd3 Bg4 8. Be3 Nd7 9. h3 Bh5 10. g4 Bg6 11. Nd4 Ne5 12. Qe2 Nxd3+ 13. cxd3 h5 14. 0-0-0 Qd7 15. f4 f5 16. Bf2 0-0-0 17. gxf5 Bf7 18. Ne6 Bxe6 19. fxe6 Qa4 20. Kb1 Qxf4 21. Bd4 c5 22. Bxg7 Rhg8 23. Rdf1 Qh4 24. Rhg1 Rde8 25. Qh2 Bg5 26. Qxd6 Rxg7 27. Rf8 Rge7 28. Rxe8+ Rxe8 29. Qd7+ 1-0

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.12.03"]
[Round "12"]
[White "Staniak, Mariusz"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "1808"]
[BlackElo "1844"]
[PlyCount "104"]
[EventDate "2019.09.20"]
[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 d6 3. Bb5+ Bd7 4. a4 Nf6 5. Nc3 g6 6. 0-0 Bg7 7. e5 dxe5 8. Nxe5 0-0 9. Nxd7 Nbxd7 10. Re1 a6 11. Bf1 Nb6 12. g3 Nbd5 13. Nxd5 Nxd5 14. Bg2 e6 15. Rb1 b5 16. b3 Rb8 17. Bb2 Bxb2 18. Rxb2 bxa4 19. Qa1 axb3 20. Rxb3 Rxb3 21. cxb3 Nb4 22. Qc3 Qd6 23. Ra1 Rd8 24. Bf1 Qb6 25. Bc4 Rd4 26. Qb2 Qd6 27. Rd1 Qc6 28. Ra1 Qd6 29. Rd1 h5 30. h4 g5 31. hxg5 h4 32. Qc3 Nd3 33. Bxd3 Rxd3 34. Qf6 hxg3 35. g6 gxf2+ 36. Kf1 fxg6 37. Qxg6+ Kf8 38. Qf6+ Ke8 39. Qg6+ Kd7 40. Qh7+ Kc6 41. b4 Rxd2 42. Qe4+ Qd5 43. Qxd5+ Rxd5 44. Rc1 Rf5 45. bxc5 a5 46. Rc2 e5 47. Ra2 e4 48. Rxa5 e3 49. Ra2 Rg5 50. Ra6+ Kb5 51. Rf6 Rg1+ 52. Ke2 Re1+ 0-1

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.11.29"]
[Round "11"]
[White "Matyszkiewicz, Wiktor"]
[Black "Moskwinski, Marek"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "1844"]
[BlackElo "1940"]
[PlyCount "59"]
[EventDate "2019.09.20"]
[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 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Nbd7 9. 0-0-0 0-0 10. g4 b5 11. Bxf6 Nxf6 12. e5 Nd5 13. Nxd5 exd5 14. exd6 Bxd6 15. Bd3 Qf6 16. Ne2 Re8 17. g5 Qe6 18. Qh5 g6 19. Qh4 Qg4 20. Qf2 Bb7 21. Rhg1 Qe6 22. Qh4 Bc5 23. f5 gxf5 24. Rgf1 Bc8 25. Kb1 Qe5 26. Nf4 Be6 27. Nh5 Be7 28. Nf6+ Bxf6 29. gxf6 Kh8 30. Rf3 1-0

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.11.08"]
[Round "10"]
[White "Liberadzki, Slawomir"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "D74"]
[WhiteElo "1980"]
[BlackElo "1844"]
[PlyCount "70"]
[EventDate "2019.09.20"]
[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. c4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d5 6. cxd5 Nxd5 7. 0-0 Nc6 8. d4 Bf5 9. Nh4 Be6 10. e4 Nxc3 11. bxc3 Bc4 12. Re1 e5 13. d5 Ne7 14. Ba3 Re8 15. Nf3 Nc8 16. Nd2 Nb6 17. Bc5 Bb5 18. a4 Bd7 19. a5 Nc8 20. c4 Nd6 21. Qb3 Qf6 22. Reb1 Bh6 23. Be3 Bxe3 24. Qxe3 b6 25. c5 bxc5 26. Qxc5 Rec8 27. Bf1 a6 28. Ra2 Bb5 29. Bxb5 Nxb5 30. Kg2 Rd8 31. Nf3 Rd6 32. Rc1 Rad8 33. Rac2 Qe7 34. Qe3 f6 35. h4 R8d7 1/2-1/2

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.11.07"]
[Round "8"]
[White "Poniewierski, Piotr"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "1875"]
[BlackElo "1844"]
[PlyCount "150"]
[EventDate "2019.09.20"]
[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. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d5 6. cxd5 Nxd5 7. 0-0 c5 8. Qb3 Nxc3 9. dxc3 Qc7 10. Bf4 e5 11. Be3 Nd7 12. Rad1 Rb8 13. Rd5 b6 14. Rfd1 Nf6 15. Rxe5 Ng4 16. Re4 Nxe3 17. Rxe3 Bh6 18. Re4 Be6 19. Rxe6 fxe6 20. Qxe6+ Qf7 21. Qh3 Bg7 22. Ng5 Qxf2+ 23. Kh1 h6 24. Qe6+ Kh8 25. Qxg6 Qf5 26. Qxf5 Rxf5 27. Ne6 Re8 28. Nf4 Be5 29. Ng6+ Kg7 30. Be4 Rf7 31. Nh4 Bxc3 32. Bg6 Bxb2 33. Bxf7 Kxf7 34. Rd2 Bc1 35. Rc2 Bg5 36. Nf3 Be3 37. Kg2 Ke6 38. g4 Kd5 39. Nh4 Re4 40. Kf3 h5 41. h3 hxg4+ 42. hxg4 Bg5 43. Nf5 Rf4+ 44. Kg3 Ra4 45. Kf3 Rf4+ 46. Kg3 Rf1 47. Kg2 Rc1 48. Ne7+ Ke4 49. Rxc1 Bxc1 50. Kf2 Bd2 51. Nf5 Kf4 52. e3+ Ke5 53. Ke2 Bb4 54. Ne7 a5 55. Nc8 b5 56. Na7 c4 57. Nxb5 Ke4 58. Nd4 Be7 59. Nc6 Bg5 60. Nxa5 c3 61. Nc4 c2 62. Kd2 c1Q+ 63. Kxc1 Kd3 64. Ne5+ Kxe3 65. Nf7 Bf4 66. g5 Ke4+ 67. Kc2 Kf5 68. Kd3 Bc7 69. Kd4 Kg6 70. Ne5+ Kxg5 71. Nd7 Kf5 72. Kd5 Ba5 73. a4 Be1 74. Nc5 Kf6 75. Kc6 Ke7 1/2-1/2

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.11.01"]
[Round "7"]
[White "Derylo, Kamil"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "1999"]
[BlackElo "1844"]
[PlyCount "79"]
[EventDate "2019.09.20"]
[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 g6 3. c4 Bg7 4. e3 0-0 5. Be2 c5 6. d5 d6 7. Nc3 e6 8. 0-0 exd5 9. cxd5 a6 10. a4 Nbd7 11. h3 Re8 12. Nd2 Rb8 13. Qc2 Nb6 14. e4 Na8 15. Nc4 b5 16. axb5 axb5 17. Na5 Bd7 18. Bf4 Bf8 19. Bf3 b4 20. Nd1 Bb5 21. Nc4 Nb6 22. Nde3 Nxc4 23. Nxc4 b3 24. Qd3 Bxc4 25. Qxc4 Rb4 26. Qa6 Nxe4 27. Ra4 Rb6 28. Qa5 f5 29. Bxe4 fxe4 30. Re1 Bg7 31. Bg5 Qb8 32. Raxe4 Rxe4 33. Rxe4 Bxb2 34. Re7 Be5 35. Qa4 Rb5 36. Qg4 Qf8 37. Qe6+ Kh8 38. Re8 Kg7 39. Qd7+ Qf7 40. Re7 1-0

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.10.25"]
[Round "6"]
[White "Matyszkiewicz, Wiktor"]
[Black "Potocki, Karol"]
[Result "1-0"]
[ECO "C90"]
[WhiteElo "1844"]
[BlackElo "1840"]
[PlyCount "95"]
[EventDate "2019.09.20"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. d3 Bg4 10. Nbd2 Na5 11. Bc2 c5 12. h3 Bh5 13. Nf1 Nc6 14. Ng3 Bg6 15. a4 Qc7 16. Nh4 Rfe8 17. Bg5 h6 18. Bd2 Bh7 19. Nhf5 Bf8 20. Qf3 Bxf5 21. Nxf5 Nh7 22. Bb3 c4 23. Bc2 cxd3 24. Bb3 bxa4 25. Rxa4 Rab8 26. Bd5 Rxb2 27. Rd1 Ng5 28. Bxg5 hxg5 29. Rxa6 Nb8 30. Nxd6 Bxd6 31. Rxd6 Rf8 32. Qxd3 Kh7 33. Bc4 Qc5 34. Rf1 f6 35. Rd5 Qc7 36. Bb5 Rc8 37. c4 Qa7 38. Qf3 Qc7 39. Qa3 Re2 40. Qf3 Rc2 41. Qb3 Re2 42. c5 Qb7 43. Qd3 Rb2 44. Bd7 Nxd7 45. Rxd7 Qb4 46. Qf3 Qxc5 47. Qh5+ Kg8 48. Qf7+ 1-0

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.10.18"]
[Round "5"]
[White "Choroszej, Aleksander"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1-0"]
[ECO "A69"]
[WhiteElo "2054"]
[BlackElo "1844"]
[PlyCount "39"]
[EventDate "2019.09.20"]
[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. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c5 7. d5 e6 8. Be2 exd5 9. cxd5 Re8 10. e5 dxe5 11. fxe5 Ng4 12. e6 fxe6 13. d6 Bd7 14. 0-0 Qb6 15. Qe1 Qxd6 16. Qh4 Bd4+ 17. Kh1 Ne3 18. Ng5 Re7 19. Nge4 Qe5 20. Bxe3 1-0

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.10.08"]
[Round "4"]
[White "Matyszkiewicz, Wiktor"]
[Black "Koziol, Pawel"]
[Result "1-0"]
[ECO "B49"]
[WhiteElo "1844"]
[BlackElo "1803"]
[PlyCount "37"]
[EventDate "2019.09.20"]
[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. Nc3 Qc7 6. Be2 a6 7. Be3 Nf6 8. 0-0 Bb4 9. Nxc6 bxc6 10. Qd4 c5 11. Qc4 Bb7 12. Bf3 0-0 13. e5 Bxf3 14. exf6 gxf6 15. Bh6 Bh5 16. Qh4 Qe5 17. Ne4 Bg6 18. Nxf6+ Kh8 19. Bxf8 1-0

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.10.03"]
[Round "1"]
[White "Kasperkiewicz, Pawel"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "1869"]
[BlackElo "1844"]
[PlyCount "120"]
[EventDate "2019.09.20"]
[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. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. h3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. 0-0-0 Nc6 11. Bd3 Be6 12. Nd5 Bxd5 13. cxd5 Nb4 14. Bb1 c6 15. a3 Na6 16. dxc6 Nc5 17. cxb7 Rab8 18. Ba2 Ncxe4 19. Be3 Rxb7 20. Nd2 Rc8+ 21. Nc4 Rbc7 22. Kb1 h5 23. Nd6 Rb8 24. Nxe4 Nxe4 25. Rc1 Nc3+ 26. Ka1 e4 27. Bf4 Nxa2 28. Rb1 Rb3 29. Kxa2 Rcb7 30. Bc1 Bd4 31. Re1 f5 32. Re2 Bc5 33. Be3 Bxa3 34. Bd4 Bf8 35. Rc1 Bg7 36. Rc8+ Kf7 37. Bxg7 Kxg7 38. Rec2 R3b6 39. R2c7+ Kf6 40. Rxb7 Rxb7 41. Rc6+ Kf7 42. Kb1 a5 43. Kc2 a4 44. Ra6 Rc7+ 45. Kd2 Rc4 46. g3 Rb4 47. Kc2 Rb3 48. Rxa4 Rf3 49. Ra7+ Kf8 50. Ra8+ Kg7 51. Ra7+ Kh6 52. Ra3 Rxf2+ 53. Kc3 Rg2 54. Ra1 Rxg3+ 55. Kc4 Rxh3 56. b4 Rh2 57. Rb1 Rc2+ 58. Kd5 Rd2+ 59. Kc6 e3 60. b5 e2 0-1

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.09.27"]
[Round "2"]
[White "Matyszkiewicz, Wiktor"]
[Black "Safanowski, Tomasz"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "1844"]
[BlackElo "1841"]
[PlyCount "70"]
[EventDate "2019.09.20"]
[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. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Nf3 c5 9. Qd2 Nc6 10. 0-0-0 b5 11. dxc5 Qxc5 12. Kb1 Nb6 13. Nd4 Nxd4 14. Qxd4 Qxd4 15. Rxd4 Bd7 16. Ne2 Ke7 17. b3 f6 18. Rd2 b4 19. Nd4 a5 20. Bd3 fxe5 21. fxe5 Raf8 22. Kb2 Rf4 23. Bb5 Rxd4 24. Rxd4 Bxb5 25. Rf4 Rc8 26. Re1 Be8 27. Re3 Nd7 28. c3 bxc3+ 29. Rxc3 Rxc3 30. Kxc3 Nxe5 31. a3 g5 32. Rf1 Bb5 33. Re1 Kd6 34. b4 a4 35. Re3 h5 0-1

[Event "Warsaw YMCA Autumn-A 220th"]
[Site "Warsaw"]
[Date "2019.09.27"]
[Round "3"]
[White "Omar, Mohamed"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1864"]
[BlackElo "1844"]
[PlyCount "98"]
[EventDate "2019.09.20"]
[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. d3 Nc6 3. Nc3 Nf6 4. Be3 e6 5. Nf3 d5 6. exd5 exd5 7. d4 Bg4 8. Be2 Qb6 9. Na4 Qa5+ 10. c3 c4 11. 0-0 Bd6 12. b4 Qc7 13. h3 Bh5 14. Rb1 0-0 15. Nh4 Bxe2 16. Qxe2 Ne4 17. Nf5 Ne7 18. Nxd6 Qxd6 19. Bd2 b6 20. Rfe1 Ng6 21. f3 Nxd2 22. Qxd2 Qg3 23. Qf2 Qg5 24. Kh2 Nf4 25. Nb2 Rfe8 26. g3 Ne6 27. Re5 Qd8 28. Rbe1 a5 29. a3 axb4 30. axb4 Ra2 31. R1e2 Qd7 32. f4 f6 33. R5e3 Nc7 34. Rxe8+ Nxe8 35. Nd1 Ra3 36. Qf3 Nc7 37. Qe3 Kf7 38. Kg2 Nb5 39. g4 Nd6 40. Nf2 Nb5 41. Nd1 h5 42. Qf3 Nxd4 43. Qe3 Nxe2 44. Qxe2 Qe6 45. Qd2 hxg4 46. hxg4 Qxg4+ 47. Kf2 Qf5 48. Kf3 Qe4+ 49. Kg3 d4 0-1

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.12.13"]
[Round "12"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kalejta, Arkadiusz"]
[Result "1/2-1/2"]
[ECO "B33"]
[WhiteElo "1713"]
[BlackElo "1701"]
[PlyCount "88"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[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 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. c3 Bg7 13. 0-0 Bxd5 14. exd5 Ne7 15. Nc2 0-0 16. a4 bxa4 17. Rxa4 a5 18. Na3 e4 19. Be2 Qb6 20. Nc4 Qc5 21. Qd2 Nxd5 22. Rfa1 Nb6 23. Nxb6 Qxb6 24. b4 Qc7 25. bxa5 Bxc3 26. Qc2 Rxa5 27. Rxa5 Bxa5 28. Qd1 Rc8 29. Ba6 Re8 30. Rc1 Qe7 31. Bb5 Rb8 32. Bc4 Bb6 33. Qe2 Bc5 34. h3 Qe5 35. Rd1 Rb2 36. Rd2 Rb1+ 37. Rd1 Rb2 38. Qh5 Bxf2+ 39. Kf1 Qg7 40. Qxf5 Bc5 41. Qc8+ Qf8 42. Qg4+ Qg7 43. Qc8+ Qf8 44. Qg4+ Qg7 1/2-1/2

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.12.06"]
[Round "11"]
[White "Derylo, Kamil"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1772"]
[BlackElo "1713"]
[PlyCount "128"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[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 Nc6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 0-0 10. 0-0-0 a6 11. g4 Na7 12. h4 Nb5 13. Nxb5 axb5 14. Kb1 Bc4 15. h5 Nd7 16. g5 Ra6 17. g6 Qa8 18. h6 fxg6 19. Bxc4+ bxc4 20. Qd5+ Rf7 21. Qxc4 gxh6 22. Rxh6 Nf6 23. Bg5 Rc6 24. Qe6 Qc8 25. Qxc8+ Rxc8 26. Rhh1 Ne8 27. Bxe7 Rxe7 28. Rd3 Re6 29. Rhd1 Rc7 30. Nc1 Rf7 31. Rb3 Ref6 32. Rdd3 h5 33. Ne2 Kg7 34. a4 Kh6 35. Kc1 Kg5 36. Kd2 h4 37. Ng1 Ng7 38. Rb6 Nh5 39. Nh3+ Kh6 40. Rbb3 Nf4 41. Nxf4 Rxf4 42. Ke2 h3 43. Rd1 Kh5 44. Ra3 Kh4 45. Raa1 Rxf3 46. Rxd6 g5 47. Rh6+ Kg4 48. Rh1 R7f4 49. b3 Rxe4+ 50. Kd2 Rd4+ 51. Ke2 e4 52. Re6 e3 53. Rxe3 Rxe3+ 54. Kxe3 Rf4 55. a5 Kh4 56. c4 Rf6 57. b4 g4 58. b5 g3 59. Rd1 h2 60. a6 bxa6 61. bxa6 Rxa6 62. Kf3 Rf6+ 63. Kg2 Rf2+ 64. Kh1 Kh3 0-1

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.11.28"]
[Round "10"]
[White "Matyszkiewicz, Wiktor"]
[Black "Sypula, Krzysztof"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1713"]
[BlackElo "1607"]
[PlyCount "35"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Be3 a6 5. Qd2 Nf6 6. f3 b5 7. 0-0-0 Nbd7 8. Bh6 0-0 9. h4 e5 10. Bxg7 Kxg7 11. g4 h5 12. g5 Ng8 13. Bh3 Qe8 14. Nd5 Ra7 15. Bxd7 Bxd7 16. dxe5 dxe5 17. Nf6 Nxf6 18. gxf6+ 1-0

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.11.22"]
[Round "9"]
[White "Matyszkiewicz, Wiktor"]
[Black "Wilczynski, Adam"]
[Result "1-0"]
[ECO "B43"]
[WhiteElo "1713"]
[BlackElo "1611"]
[PlyCount "75"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[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 a6 5. Nc3 Qc7 6. Be2 Nf6 7. 0-0 b5 8. Bf3 Ra7 9. Be3 Bc5 10. b4 Bb6 11. Ndxb5 axb5 12. Nxb5 Qd8 13. Nxa7 Bxa7 14. Bxa7 Ba6 15. Re1 0-0 16. Bc5 Re8 17. e5 Nd5 18. Bxd5 exd5 19. Qxd5 Bb5 20. a4 Bc6 21. Qd2 Na6 22. Bd6 Nc7 23. b5 Bb7 24. Bxc7 Qxc7 25. Rad1 Bc8 26. Re3 h6 27. h3 Re6 28. a5 Rxe5 29. Rxe5 Qxe5 30. Re1 Qc5 31. Re8+ Kh7 32. Qd3+ g6 33. a6 d6 34. Rxc8 Qxc8 35. b6 Qd8 36. b7 Qb6 37. Qb3 Qd8 38. Qxf7+ 1-0

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.11.15"]
[Round "8"]
[White "Derylo, Kamil"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1772"]
[BlackElo "1713"]
[PlyCount "56"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. b3 e5 2. Bb2 Nc6 3. e3 d6 4. Bb5 Bd7 5. Ne2 Qg5 6. 0-0 a6 7. f4 exf4 8. Bxc6 Bxc6 9. Nxf4 Nf6 10. Qe2 0-0-0 11. c4 h5 12. d4 d5 13. Nc3 Bd6 14. Ncxd5 Bxd5 15. Nxd5 Ng4 16. h3 Rde8 17. hxg4 hxg4 18. g3 Bxg3 19. Qg2 Bd6 20. Rxf7 Rh2 21. Nb6+ Kb8 22. Qd5 Qxe3+ 23. Kf1 Rxb2 24. Nd7+ Ka7 25. Nc5 Qh3+ 26. Kg1 Bh2+ 27. Kh1 Bg3+ 28. Kg1 Qh2+ 0-1

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.11.09"]
[Round "7"]
[White "Matyszkiewicz, Wiktor"]
[Black "Szukalski, Antoni"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1713"]
[BlackElo "1759"]
[PlyCount "94"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nf6 5. h3 Nc6 6. c3 e6 7. Bf4 Qb6 8. Qc2 Bd7 9. Nd2 Rc8 10. Nb3 Nb4 11. Qe2 Nxd3+ 12. Qxd3 a5 13. Rb1 Bb5 14. Qe3 Bc4 15. Nc1 Be7 16. Nge2 Ne4 17. 0-0 0-0 18. Re1 Rfe8 19. Bh2 f5 20. Be5 g5 21. f3 Nd6 22. h4 h6 23. hxg5 hxg5 24. f4 g4 25. Bxd6 Qxd6 26. Kf2 Kf7 27. Rh1 Rh8 28. Nd3 Bf6 29. Ne5+ Kg7 30. Ng3 Bh4 31. a3 Bb3 32. Rbc1 a4 33. Ke2 Qa6+ 34. Kd2 Qd6 35. Nd3 b6 36. Ne5 Rh6 37. Rh2 Rch8 38. Rch1 Qc7 39. Ne2 Be1+ 40. Kxe1 Rxh2 41. Rxh2 Rxh2 42. Nd3 Rh1+ 43. Kf2 Qe7 44. Qe5+ Kf7 45. Nb4 Bc4 46. Ng3 Qh4 47. Qc7+ Kg6 0-1

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.11.06"]
[Round "6"]
[White "Kasperski, Marcin"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "1726"]
[BlackElo "1713"]
[PlyCount "132"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. Nc3 e5 7. d3 Nc6 8. Bg5 h6 9. Bd2 Be6 10. Rb1 e4 11. Ne1 exd3 12. exd3 Qd7 13. Nc2 Bf5 14. Ne4 Nxe4 15. dxe4 Bh3 16. b4 Bxg2 17. Kxg2 Qe6 18. Qe2 Rae8 19. b5 Ne5 20. Ne3 h5 21. Nd5 Qc8 22. Bc3 Nd7 23. Bxg7 Kxg7 24. Qb2+ f6 25. Qd4 Nc5 26. f3 Rf7 27. a4 Ne6 28. Qa1 c6 29. Nc3 Ng5 30. Qa2 Qh3+ 31. Kg1 f5 32. Qd2 f4 33. Qg2 fxg3 34. hxg3 Qxg2+ 35. Kxg2 Rc8 36. b6 axb6 37. Rxb6 Ra8 38. f4 Ne6 39. Rd1 Nc5 40. Rb4 Rf6 41. Kf3 g5 42. f5 Kh6 43. Ra1 g4+ 44. Ke3 Re8 45. Kd4 Kg5 46. Rb2 h4 47. gxh4+ Kxh4 48. Rh1+ Kg5 49. Rg2 Nb3+ 50. Kd3 Nc5+ 51. Kd4 Nd7 52. Rh7 Ne5 53. Rxb7 Kf4 54. Rbb2 Nf3+ 55. Kd3 Ne1+ 56. Kd4 Nxg2 57. Rxg2 Kf3 58. Ra2 g3 59. a5 g2 60. Ne2 Rxe4+ 61. Kd3 Re3+ 62. Kd4 Rxe2 63. Ra1 Kf2 64. a6 g1Q 65. Rxg1 Kxg1 66. a7 Ra2 0-1

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.10.18"]
[Round "5"]
[White "Matyszkiewicz, Wiktor"]
[Black "Sypula, Krzysztof"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "1713"]
[BlackElo "1607"]
[PlyCount "107"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Be3 d6 5. Bc4 b5 6. Bb3 Nf6 7. f3 a5 8. a3 a4 9. Ba2 Qa5 10. Qd2 Nbd7 11. Nh3 Nb6 12. Nf4 Nc4 13. Bxc4 bxc4 14. 0-0 Rb8 15. Rab1 0-0 16. h4 e5 17. Nfe2 Be6 18. Bh6 Rfd8 19. Bxg7 Kxg7 20. g4 Qa7 21. Kg2 h5 22. Ng3 Qxd4 23. Qg5 Nh7 24. Qc1 hxg4 25. h5 g5 26. fxg4 Bxg4 27. Rf5 f6 28. Qf1 d5 29. Rd1 Qa7 30. Rd2 Rxb2 31. Rdf2 Rd6 32. h6+ Kg6 33. R5f3 Bxf3+ 34. Rxf3 Rxc2+ 35. Kh1 g4 36. Qd1 Qd4 37. Qxc2 gxf3 38. exd5+ Qd3 39. Qh2 Kf7 40. Qh5+ Qg6 41. Qxf3 Qxh6+ 42. Kg2 Qd2+ 43. Nce2 Qxd5 44. Ne4 Rd7 45. N2c3 Qe6 46. Qh5+ Kg8 47. Nc5 Rg7+ 48. Kf2 Qg4 49. Qe8+ Nf8 50. N3e4 Qg1+ 51. Kf3 Rg2 52. Nxf6+ Kg7 53. Nh5+ Kg8 54. Nf6+ 1/2-1/2

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.10.11"]
[Round "4"]
[White "Mazurek, Jerzy"]
[Black "Matyszkiewicz, Wiktor"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "1691"]
[BlackElo "1713"]
[PlyCount "68"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 2021"]
[Source "ChessBase"]
[SourceDate "2020.10.23"]
[SourceVersion "1"]
[SourceVersionDate "2020.10.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 c5 6. 0-0 cxd4 7. Nxd4 Nc6 8. Nc3 Qb6 9. Nxc6 dxc6 10. Na4 Qc7 11. Qc2 Rd8 12. Bf4 e5 13. Bd2 Bf5 14. Qc1 Be6 15. Bb4 Rd4 16. Nc5 Bxc4 17. Bc3 Rdd8 18. Bxe5 Qxe5 19. Qxc4 Rd4 20. Qc2 Re8 21. e3 Rdd8 22. Nxb7 Rb8 23. Qxc6 Re6 24. Qc5 Qxb2 25. Qxa7 Qe5 26. Qc5 Qxc5 27. Nxc5 Re7 28. Rab1 Rc8 29. Rfc1 Ra7 30. a4 Bf8 31. Nd3 Rxc1+ 32. Rxc1 Rxa4 33. Bc6 Ra2 34. Bf3 Ra7 1/2-1/2

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.10.05"]
[Round "3"]
[White "Matyszkiewicz, Wiktor"]
[Black "Kalejta, Arkadiusz"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1713"]
[BlackElo "1701"]
[PlyCount "71"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[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 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. c3 Bxd5 13. exd5 Ne7 14. Nxb5 Bg7 15. Na3 0-0 16. 0-0 e4 17. Bc2 Rb8 18. Rb1 Ng6 19. Nc4 Re8 20. Re1 Ne5 21. Nxe5 Bxe5 22. Qh5 Qf6 23. Re3 Qg6 24. Rh3 Rb5 25. Qxg6+ hxg6 26. Ba4 Reb8 27. Bxb5 Rxb5 28. c4 Rb4 29. b3 Bd4 30. Kf1 Kg7 31. a3 Rb7 32. b4 Rc7 33. b5 axb5 34. cxb5 Bb6 35. Rhb3 Rc5 36. a4 1-0

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.09.27"]
[Round "2"]
[White "Holubczat, Maciej"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B67"]
[WhiteElo "1680"]
[BlackElo "1713"]
[PlyCount "50"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[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 Nc6 6. Bg5 e6 7. Qd2 a6 8. 0-0-0 Bd7 9. f4 b5 10. e5 dxe5 11. Nxc6 Bxc6 12. Qxd8+ Rxd8 13. fxe5 Rxd1+ 14. Kxd1 Ng4 15. Bh4 Nxe5 16. Bf2 Ng4 17. Bb6 Bd6 18. h4 Ke7 19. Rh3 Nh2 20. Ke1 Nxf1 21. Kxf1 Rc8 22. a3 Bb7 23. g4 Rc4 24. g5 Rg4 25. Ke2 Bg3 0-1

[Event "Warsaw YMCA Autumn-B 206th"]
[Site "Warsaw"]
[Date "2018.09.20"]
[Round "1"]
[White "Mlynarski, Zbigniew"]
[Black "Matyszkiewicz, Wiktor"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1674"]
[BlackElo "1713"]
[PlyCount "74"]
[EventDate "2018.09.20"]
[EventType "tourn"]
[EventRounds "11"]
[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 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be6 10. c4 Qa5+ 11. Bd2 b4 12. Nxf6+ gxf6 13. Nc2 Qb6 14. Be2 Bg7 15. Ne3 Bh6 16. Ng4 Bxd2+ 17. Qxd2 Bxg4 18. Bxg4 Nd4 19. 0-0 Rg8 20. Qd1 Qc6 21. f3 Ke7 22. b3 a5 23. Qd2 Qc5 24. Kh1 a4 25. Rab1 axb3 26. axb3 Ra3 27. Qh6 Nxb3 28. Qxh7 Rga8 29. Qf5 Nd2 30. Qd7+ Kf8 31. Bh5 R3a7 32. Qf5 Ke7 33. Qh7 Rf8 34. f4 Nxf1 35. Rxf1 Qxc4 36. Kg1 Qd4+ 37. Kh1 Ra1 0-1

[Event "Warsaw YMCA Spring-B 199th"]
[Site "Warsaw"]
[Date "2018.06.21"]
[Round "13"]
[White "Matyszkiewicz, Wiktor"]
[Black "Jaworowski, Andre"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "1732"]
[BlackElo "1609"]
[PlyCount "40"]
[EventDate "2018.04.06"]
[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. Nc3 Nf6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 h6 11. Bxf6 gxf6 12. Bd3 Rg8 13. Qf3 Be7 14. c3 Bg4 15. Qe3 Bf8 16. Nc2 Rg6 17. a4 Na7 18. axb5 Nxb5 19. Bxb5+ axb5 20. Rxa8 Qxa8 1-0

[Event "Warsaw YMCA Spring-B 199th"]
[Site "Warsaw"]
[Date "2018.06.13"]
[Round "11"]
[White "Matyszkiewicz, Wiktor"]
[Black "Safanowski, Tomasz"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "1732"]
[BlackElo "1833"]
[PlyCount "83"]
[EventDate "2018.04.06"]
[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. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. 0-0 0-0 7. Re1 c6 8. a4 Qc7 9. h3 Re8 10. Ng5 Rf8 11. Be3 b6 12. d5 cxd5 13. Nxd5 Nxd5 14. Bxd5 Rb8 15. Nxf7 Rxf7 16. Qh5 g6 17. Bxf7+ Kxf7 18. Qxh7+ Ke8 19. Qxg6+ Kd8 20. Bg5 Nf8 21. Qg8 Ke8 22. Bh6 Be6 23. Qh8 Kd7 24. Qg7 Ke8 25. Ra3 Kd7 26. Bg5 Ng6 27. Bxe7 Nxe7 28. Rd1 Rg8 29. Qxe5 d5 30. Qxc7+ Kxc7 31. Rc3+ Kd6 32. Rcd3 Rc8 33. c3 Kc5 34. exd5 Bxd5 35. Re3 Ng6 36. Rg3 Nf4 37. Rg5 Kc6 38. Rf5 Ne2+ 39. Kh2 Bc4 40. Rf6+ Kb7 41. Re1 Rd8 42. b3 1-0

