[Event "POL-ch Universities"]
[Site "Lublin"]
[Date "2024.02.24"]
[Round "8"]
[White "Majocha, Piotr"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2027"]
[BlackElo "2116"]
[PlyCount "120"]
[EventDate "2024.02.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 c5 3. c4 dxc4 4. Bxc4 Nf6 5. Qb3 e6 6. d4 Nc6 7. dxc5 Bxc5 8. 0-0 0-0 9. Bd2 a6 10. Be2 Qe7 11. Nc3 e5 12. Nd5 Nxd5 13. Qxd5 e4 14. Nd4 Rd8 15. Qc4 Nxd4 16. exd4 Bxd4 17. Bb4 Qf6 18. Rad1 Be6 19. Qc7 Rd7 20. Qc2 Qg6 21. Kh1 Rad8 22. b3 h6 23. Bc4 Bg4 24. Rde1 Bf5 25. Qc1 Qb6 26. Bd2 Bxf2 27. Re2 e3 28. Bxe3 Bxe3 29. Qxe3 Qxe3 30. Rxe3 Bg6 31. h3 b5 32. Be2 Rd2 33. a4 bxa4 34. bxa4 a5 35. Bb5 Rc8 36. Re8+ Rxe8 37. Bxe8 Re2 38. Bc6 Be4 39. Bxe4 Rxe4 40. Rf5 Rxa4 41. Kh2 g6 42. Rb5 Kg7 43. Rb6 Ra3 44. Ra6 h5 45. Kg1 h4 46. Kf2 g5 47. Kf1 f6 48. Kf2 Kg6 49. Ke2 Kf5 50. Kf2 Ke5 51. Ke2 f5 52. Rg6 Kf4 53. Kf2 Ra2+ 54. Kg1 a4 55. Rg8 a3 56. Rg7 Rb2 57. Kh2 a2 58. Ra7 Ke3 59. Ra5 Kd3 60. Ra6 Kc2 0-1

[Event "POL-ch Universities"]
[Site "Lublin"]
[Date "2024.02.24"]
[Round "6"]
[White "Namyslak, Piotr"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "1763"]
[BlackElo "2116"]
[PlyCount "95"]
[EventDate "2024.02.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. c4 e6 2. e4 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. Nge2 Nge7 7. f4 d6 8. 0-0 0-0 9. b3 b6 10. Bb2 Bb7 11. Na4 Nd4 12. Bxd4 cxd4 13. d3 d5 14. cxd5 exd5 15. e5 Nf5 16. Qd2 Ne3 17. Rfc1 Nxg2 18. Kxg2 f6 19. exf6 Bxf6 20. Ng1 Re8 21. Re1 Re3 22. Re2 Qe7 23. Rae1 Re8 24. Nb2 Ba6 25. Kh1 Qc5 26. Nd1 Rxe2 27. Rxe2 Rc8 28. Nf2 Qc3 29. Qd1 Qc1 30. Qxc1 Rxc1 31. Re6 Kf7 32. Re2 Rc3 33. Rd2 Bc8 34. Kg2 h5 35. Ne2 Rc7 36. h3 Re7 37. Ng1 Ba6 38. Re2 Rc7 39. Nf3 Rc3 40. Rd2 Rc1 41. g4 hxg4 42. hxg4 Bc8 43. g5 Bg7 44. Kg3 Bf5 45. Ng4 Rc3 46. Nge5+ Ke6 47. Nxd4+ Kd6 48. Nb5+ 1-0

[Event "POL-ch Universities"]
[Site "Lublin"]
[Date "2024.02.24"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Hrymowicz, Artur"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2116"]
[BlackElo "2131"]
[PlyCount "65"]
[EventDate "2024.02.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB10_2024"]
[SourceDate "2024.03.06"]
[SourceVersion "1"]
[SourceVersionDate "2024.03.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bd3 Ngf6 6. c3 e6 7. Re1 Be7 8. Bc2 0-0 9. d4 b5 10. a4 Bb7 11. e5 Nd5 12. axb5 axb5 13. Rxa8 Qxa8 14. Qd3 g6 15. Qxb5 Bc6 16. Qe2 cxd4 17. exd6 Bxd6 18. Nxd4 Nf4 19. Bxf4 Bxf4 20. Nxc6 Qxc6 21. g3 Bh6 22. Be4 Qc7 23. Nd2 Nc5 24. Bg2 Rd8 25. Nf3 Bg7 26. Qc4 Qb6 27. Nd4 e5 28. Nc6 Re8 29. b4 Nd7 30. Bd5 Rf8 31. Rd1 Nf6 32. Bxf7+ Kh8 33. Nxe5 1-0

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2024.01.02"]
[Round "7"]
[White "Pacuszka, Tomasz"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2124"]
[BlackElo "2135"]
[PlyCount "77"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. Nf3 d5 2. b3 Nf6 3. Bb2 Bf5 4. e3 e6 5. Be2 h6 6. 0-0 Be7 7. c4 0-0 8. d4 c6 9. Nc3 Nbd7 10. Rc1 Rc8 11. c5 b5 12. b4 a5 13. a3 a4 14. Nxb5 cxb5 15. Bxb5 Ne4 16. Qxa4 Ra8 17. Qd1 Qc7 18. Be2 Rfb8 19. Nd2 Bf6 20. Nxe4 Bxe4 21. Qb3 Qa7 22. f3 Bg6 23. Rfd1 Be7 24. Qc3 Qa4 25. Rd2 Kf8 26. Bd1 Qb5 27. Qb3 Bg5 28. Kf2 Ra7 29. Ra1 f5 30. g3 h5 31. h4 Bf6 32. Bc3 Bf7 33. Qb2 Re8 34. a4 Qb8 35. f4 Qd8 36. Kg1 Bxh4 37. gxh4 Qxh4 38. Rg2 Nf6 39. Qf2 1-0

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2024.01.02"]
[Round "6"]
[White "Pniaczek, Marek"]
[Black "Leskiewicz, Ignacy"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2135"]
[BlackElo "2177"]
[PlyCount "78"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Nf3 Bd6 8. h3 c6 9. Be3 Nbd7 10. 0-0-0 Bc7 11. Rhe1 b5 12. Bd3 Ke7 13. g4 a6 14. Ne2 g6 15. Ng3 Ne8 16. Nd2 Bb6 17. Bxb6 Nxb6 18. Ngf1 Nc7 19. Ne3 Ne6 20. Bf1 Nf4 21. Nb3 a5 22. Nc5 h5 23. f3 hxg4 24. hxg4 Rh2 25. Nd3 Nxd3+ 26. Rxd3 Be6 27. Rc3 Rc8 28. Rd1 Rf2 29. Bg2 Nd7 30. Ra3 a4 31. Rg1 Nb6 32. Rd3 Bc4 33. Rc3 Bxa2 34. b3 b4 35. Rd3 c5 36. Rgd1 axb3 37. cxb3 c4 38. bxc4 Nxc4 39. Nd5+ Kf8 0-1

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2023.12.31"]
[Round "5"]
[White "Baum, Jonasz"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "C83"]
[WhiteElo "2421"]
[BlackElo "2135"]
[PlyCount "75"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 0-0 11. Bc2 f5 12. Nb3 Qd7 13. Nfd4 Nxd4 14. Nxd4 c5 15. Nxe6 Qxe6 16. f3 Ng5 17. Bf4 Rad8 18. Kh1 Qb6 19. Bxg5 Bxg5 20. f4 Be7 21. g4 d4 22. Bxf5 dxc3 23. Qb3+ Kh8 24. Qxc3 Qb7+ 25. Qf3 Qxf3+ 26. Rxf3 g6 27. Be6 Rd2 28. b3 Re2 29. Raf1 g5 30. Bf5 gxf4 31. e6 Rd8 32. R1f2 Rxf2 33. Rxf2 Rd4 34. Kg2 Kg7 35. Kf3 h6 36. Re2 Kf6 37. h4 a5 38. Bc2 1/2-1/2

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2023.12.30"]
[Round "4"]
[White "Pniaczek, Marek"]
[Black "Luczak, Filip"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2135"]
[BlackElo "2319"]
[PlyCount "80"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nd7 3. Nf3 g6 4. Bd3 Bg7 5. 0-0 e5 6. c3 Ngf6 7. Re1 0-0 8. h3 Re8 9. Nbd2 Nh5 10. Nf1 Nf4 11. Bc2 Qf6 12. N3h2 h5 13. Be3 Nf8 14. Qd2 g5 15. Ng3 N8g6 16. Bd1 Nh4 17. Nxh5 Qg6 18. Nxg7 Kxg7 19. Bxf4 exf4 20. f3 Rh8 21. e5 Nxg2 22. Bc2 Bf5 23. Bxf5 Qxf5 24. Qxg2 Rxh3 25. Nf1 Rah8 26. exd6 cxd6 27. Kf2 R8h4 28. Re2 g4 29. fxg4 Qg5 30. Re4 f3 31. Qg1 d5 32. Re5 Qf4 33. Ke1 Rxg4 34. Qf2 Rg2 35. Qe3 Re2+ 36. Qxe2 fxe2 37. Rxe2 Rh1 38. Rf2 Qe3+ 39. Re2 Rxf1+ 40. Kxf1 Qf3+ 0-1

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2023.12.29"]
[Round "3"]
[White "Krainski, Aleksander"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2102"]
[BlackElo "2135"]
[PlyCount "94"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. d4 b5 2. Nf3 Bb7 3. e3 a6 4. c4 bxc4 5. Bxc4 e6 6. Nc3 Nf6 7. 0-0 d5 8. Be2 Bd6 9. a3 0-0 10. b4 Nbd7 11. Bb2 e5 12. dxe5 Nxe5 13. Rc1 Qe7 14. Na4 Nxf3+ 15. Bxf3 a5 16. Nc5 Bc6 17. Bd4 axb4 18. axb4 Rfb8 19. Qd2 Ne4 20. Bxe4 dxe4 21. Ra1 Qh4 22. g3 Qg4 23. Rxa8 Rxa8 24. Ra1 Rb8 25. Bc3 h5 26. Qd1 Qf5 27. Qd4 Qg6 28. Kh1 Re8 29. Qc4 Qf5 30. Kg1 h4 31. Bd4 Rb8 32. Bc3 Qg4 33. Qd4 Re8 34. Qd1 Qf5 35. Ra5 Qg6 36. Kg2 Rd8 37. Nb3 Bd7 38. Nd4 Bg4 39. Qa1 Be7 40. Ra8 Rxa8 41. Qxa8+ Kh7 42. Qd5 Bd6 43. b5 hxg3 44. hxg3 f5 45. Qe6 Qh5 46. Qd7 f4 47. Nf5 Bf3+ 0-1

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2023.12.28"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Lukasiewicz, Krzysztof"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2135"]
[BlackElo "2290"]
[PlyCount "88"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Be2 Bc5 7. Qg3 Bd4 8. exd5 exd5 9. 0-0 Ne7 10. Bd1 0-0 11. Ne2 Bb6 12. d4 Nd7 13. c3 Re8 14. Bc2 Ng6 15. Qf3 Qf6 16. Qxf6 Nxf6 17. Be3 Bc7 18. Rae1 Re6 19. g3 Rae8 20. Kg2 Ne4 21. Bxe4 Rxe4 22. Nc1 f5 23. Nd3 Bd6 24. Bd2 Kf7 25. f4 Re2+ 26. Rxe2 Rxe2+ 27. Rf2 Rxf2+ 28. Kxf2 Ne7 29. Ne5+ Ke6 30. Kf3 Ng8 31. g4 Nf6 32. Nd3 g6 33. Be1 fxg4+ 34. hxg4 h5 35. gxh5 gxh5 36. Bh4 Ne4 37. Be1 Kf5 38. Bh4 Nd2+ 39. Ke2 Kg4 40. Bg5 Ne4 41. Bh6 h4 42. Kf1 Kg3 43. Kg1 h3 44. f5 Kg4 0-1

[Event "Krakow op-A 34th"]
[Site "Krakow"]
[Date "2023.12.27"]
[Round "1"]
[White "Sernecki, Franciszek"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "D24"]
[WhiteElo "2325"]
[BlackElo "2135"]
[PlyCount "123"]
[EventDate "2023.12.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CB02_2024"]
[SourceDate "2024.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2024.01.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bxc4 Nxe4 7. 0-0 Nf6 8. Qa4+ Nc6 9. Ne5 Bd6 10. Nxc6 bxc6 11. Qxc6+ Bd7 12. Qf3 0-0 13. Bf4 Rb8 14. b3 Bxf4 15. Qxf4 Bc6 16. Rad1 Re8 17. Rfe1 Qd6 18. Qg3 h6 19. Re5 Nd7 20. Ra5 Rb7 21. Qxd6 cxd6 22. d5 exd5 23. Bxd5 Bxd5 24. Raxd5 Rc7 25. Rxd6 Nf6 26. R6d3 Re5 27. g3 h5 28. Nd5 Rc2 29. Nxf6+ gxf6 30. R1d2 Re2 31. Rxe2 Rxe2 32. a4 Rb2 33. Kg2 Kg7 34. h4 Kg6 35. Rc3 a5 36. Kf3 Ra2 37. Rc5 Rb2 38. Rb5 Rb1 39. Kf4 Rb2 40. Ke3 Rb1 41. Kd3 Rb2 42. Ke3 Rb1 43. f3 Rb2 44. Kf4 Rb1 45. g4 hxg4 46. Kxg4 Rg1+ 47. Kf4 Rb1 48. Ke4 Re1+ 49. Kd3 Rb1 50. Kc2 Rf1 51. h5+ Kg7 52. Rf5 Rf2+ 53. Kc3 Rf1 54. Kc4 Rc1+ 55. Kd3 Rf1 56. Kc2 Rf2+ 57. Kc3 Rf1 58. b4 axb4+ 59. Kxb4 Rb1+ 60. Kc4 Ra1 61. Kb5 Rb1+ 62. Kc6 1-0

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.31"]
[Round "9"]
[White "Zalega, Maciej"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2155"]
[BlackElo "2143"]
[PlyCount "81"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Poland"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 c5 5. Bd3 Nc6 6. Bxe4 dxe4 7. d5 g5 8. Bxg5 Bg7 9. Nc3 Bxc3+ 10. bxc3 Ne5 11. Ne2 Rg8 12. Bf4 Nc4 13. Ng3 b6 14. Qh5 Ba6 15. Qxh7 Rg6 16. Qh8+ Kd7 17. Qh3+ Ke8 18. 0-0 Qc8 19. Nf5 Nd6 20. Bxd6 exd6 21. Rfe1 Qd8 22. Ng3 Bc8 23. Qh8+ Kd7 24. Qxd8+ Kxd8 25. Nxe4 Bf5 26. Ng3 Bxc2 27. e4 f6 28. Nf5 Kd7 29. f3 Rag8 30. g4 b5 31. Kf2 a5 32. Rec1 Ba4 33. a3 Bb3 34. h4 Ra8 35. h5 Rgg8 36. h6 a4 37. Rh1 b4 38. cxb4 cxb4 39. axb4 a3 40. Rhc1 a2 41. Nd4 1-0

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.30"]
[Round "8"]
[White "Pniaczek, Marek"]
[Black "Walaszczyk, Aleksander"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2143"]
[BlackElo "1731"]
[PlyCount "93"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Poland"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. g3 d5 6. Nb3 Nf6 7. exd5 Qxd5 8. Qxd5 Nxd5 9. Bg2 Nc6 10. 0-0 Be7 11. Rd1 Nb6 12. Nc3 Nc4 13. Nd4 Bd7 14. Nxc6 Bxc6 15. Bxc6+ bxc6 16. Rd4 Nd6 17. Na4 f6 18. Be3 Kf7 19. Rad1 Rhd8 20. R4d3 Nc4 21. Bd4 e5 22. Bc3 Rxd3 23. Rxd3 Ke6 24. Be1 Rb8 25. b3 Na3 26. c4 Nc2 27. Ba5 Rb7 28. Rd2 Nd4 29. Kg2 Rd7 30. Bb6 Nf5 31. Rxd7 Kxd7 32. Kf3 Ke6 33. Ke4 Nd6+ 34. Kd3 Nb7 35. c5 f5 36. Kc4 g5 37. b4 h5 38. Nc3 e4 39. Ne2 Bf6 40. a4 Be5 41. Nd4+ Bxd4 42. Kxd4 Kf6 43. b5 axb5 44. a5 Nxa5 45. Bxa5 g4 46. Bd8+ Ke6 47. Bg5 1-0

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.29"]
[Round "7"]
[White "Pancewicz, Szymon"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "1853"]
[BlackElo "2143"]
[PlyCount "174"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 g6 5. d4 exd4 6. Nxd4 Bg7 7. Bc4 0-0 8. 0-0 Re8 9. Nxc6 bxc6 10. f3 d6 11. Bg5 h6 12. Bh4 Qd7 13. Qd3 Nh5 14. Rad1 Rb8 15. b3 Bb7 16. Bf2 Qe7 17. Qd2 Rbd8 18. Rfe1 Be5 19. Bd4 Qf6 20. Bxe5 Rxe5 21. Qxh6 d5 22. Qd2 Nf4 23. Ne2 Nxe2+ 24. Bxe2 Rde8 25. Bd3 Bc8 26. Qc3 Bd7 27. Bf1 Qe7 28. Bd3 Qxa3 29. Ra1 Qd6 30. f4 Rh5 31. e5 Qe7 32. Re3 c5 33. Qe1 c4 34. bxc4 dxc4 35. Bxc4 Qc5 36. Qc3 Qb6 37. Qb3 Qd4 38. Bxf7+ Kg7 39. Rf1 Ba4 40. Qc3 Qxc3 41. Rxc3 Kxf7 42. Ra1 Bb5 43. Rxc7+ Re7 44. Raxa7 Rxc7 45. Rxc7+ Ke6 46. c4 Be8 47. g3 g5 48. Kg2 gxf4 49. gxf4 Kf5 50. Kg3 Rh6 51. Rg7 Rc6 52. Rg5+ Ke6 53. Kg4 Rxc4 54. Rf5 Rc2 55. Rf6+ Ke7 56. h4 Rh2 57. Kg5 Rg2+ 58. Kf5 Ba4 59. Re6+ Kf7 60. Rf6+ Ke7 61. Ke4 Bc2+ 62. Kf3 Rh2 63. Kg3 Rh1 64. Rh6 Bf5 65. Rf6 Rh3+ 66. Kg2 Bd7 67. Rh6 Rc3 68. h5 Bh3+ 69. Kh2 Bf5 70. Kg2 Be4+ 71. Kh2 Bf5 72. Kg2 Bh3+ 73. Kh2 Bg4 74. Kg2 Bh3+ 75. Kf2 Bg4 76. Kg2 Bf3+ 77. Kf2 Bd1 78. Kg2 Re3 79. Rh7+ Kf8 80. h6 Kg8 81. Rg7+ Kh8 82. Rf7 Bg4 83. Kf2 Rh3 84. Rf6 Kh7 85. e6 Rxh6 86. Rxh6+ Kxh6 87. e7 Bd7 1/2-1/2

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.28"]
[Round "6"]
[White "Pniaczek, Marek"]
[Black "Meers, Hubert"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2143"]
[BlackElo "2256"]
[PlyCount "54"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 Nf6 4. e5 Ne4 5. Ne2 Qb6 6. d4 e6 7. Ng3 c5 8. Bd3 Nxg3 9. fxg3 Nc6 10. 0-0 cxd4 11. Qe2 h6 12. a3 Bd7 13. g4 0-0-0 14. b4 f6 15. Bb2 Be7 16. Kh1 a6 17. c4 dxc4 18. Bxc4 fxe5 19. Nxe5 Nxe5 20. Qxe5 Bf6 21. Rxf6 gxf6 22. Qxf6 Bb5 23. Bxe6+ Kb8 24. Rd1 Rhe8 25. Qf4+ Qd6 26. Qxd6+ Rxd6 27. Bf5 Ba4 0-1

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.27"]
[Round "5"]
[White "Redzisz, Michal"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "2228"]
[BlackElo "2143"]
[PlyCount "92"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e4 Bb4 6. Bxc4 Nxe4 7. 0-0 Nf6 8. Qa4+ Nc6 9. Ne5 Bd6 10. Nxc6 bxc6 11. Qxc6+ Bd7 12. Qf3 0-0 13. Bg5 h6 14. Bh4 Rb8 15. b3 Rb6 16. Rad1 Re8 17. Rfe1 Bc6 18. d5 exd5 19. Bxf6 Rxe1+ 20. Rxe1 Qxf6 21. Qxf6 gxf6 22. Nxd5 Bxd5 23. Bxd5 Rb5 24. Rd1 Rc5 25. Bc4 Kg7 26. g3 f5 27. f4 Kf6 28. Kg2 Kg6 29. Re1 Rc6 30. Re8 Bc5 31. Re5 Bd6 32. Ra5 Bc5 33. Bd3 Bb6 34. Rxf5 Rd6 35. Be4 Rd2+ 36. Kh3 Kg7 37. a4 Bg1 38. Bg2 Rb2 39. Rb5 Kf6 40. Rb7 Bb6 41. Rb8 a5 42. Bd5 Rd2 43. Be4 Bg1 44. Bg2 Bb6 45. Be4 Bg1 46. Bg2 Bb6 1/2-1/2

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.26"]
[Round "4"]
[White "Pniaczek, Marek"]
[Black "Fiedorek, Michal"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2143"]
[BlackElo "2334"]
[PlyCount "69"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 d6 6. c3 a5 7. Re1 0-0 8. h3 Ba7 9. Bb3 Be6 10. Bc2 Ne7 11. d4 Ng6 12. Be3 c6 13. Nbd2 Re8 14. Nf1 exd4 15. Bxd4 Bxd4 16. Nxd4 Bd7 17. Ng3 Qb6 18. Qd2 Rad8 19. Bb3 c5 20. Ndf5 Bxf5 21. Nxf5 Qc6 22. Bd5 Nxd5 23. exd5 Qd7 24. Ng3 h6 25. c4 b6 26. Qc3 Rxe1+ 27. Rxe1 f6 28. Qe3 Kf8 29. f4 Re8 30. Qxe8+ Qxe8 31. Rxe8+ Kxe8 32. Nh5 Kf7 33. Kf2 Ne7 34. Ng3 f5 35. Ke3 1/2-1/2

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.25"]
[Round "3"]
[White "Karas, Kacper"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "1445"]
[BlackElo "2143"]
[PlyCount "50"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. Nf3 c5 2. d4 cxd4 3. Nxd4 Nf6 4. c4 b6 5. Nc3 Bb7 6. Bg5 Nc6 7. e4 d6 8. Be2 e6 9. 0-0 Be7 10. Be3 0-0 11. Kh1 Rc8 12. b3 Qc7 13. f4 Rfe8 14. Bf3 Qb8 15. Rc1 Red8 16. Qe2 Bf8 17. Rfd1 Ne7 18. e5 Bxf3 19. Nxf3 dxe5 20. Nxe5 Qb7 21. Rxd8 Rxd8 22. Rd1 Rxd1+ 23. Qxd1 Nf5 24. Qd3 h5 25. Kg1 Nxe3 0-1

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.25"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Czernek, Tymon"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2143"]
[BlackElo "2329"]
[PlyCount "107"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bd3 b5 6. c3 Bb7 7. Re1 Ngf6 8. Bc2 c4 9. a4 e5 10. d4 cxd3 11. Qxd3 Nc5 12. Qe2 bxa4 13. Be3 Nfxe4 14. Nbd2 Be7 15. Nxe4 Nxe4 16. Bxa4+ Kf8 17. Rad1 Qc7 18. h4 Nf6 19. h5 h6 20. Nh4 Bc8 21. Qf3 d5 22. Nf5 e4 23. Qg3 Qxg3 24. Nxg3 Be6 25. b4 Kg8 26. Ra1 Rc8 27. Bd4 Kh7 28. Bc2 Bxb4 29. Bxf6 gxf6 30. Bxe4+ dxe4 31. cxb4 f5 32. Rxa6 Rb8 33. Rb1 Rhg8 34. Ra7 Kg7 35. Ne2 Kf6 36. Nf4 Rb6 37. b5 Rgb8 38. Nxe6 Rxe6 39. Rc7 Rbb6 40. Rc5 Re5 41. Rxe5 Kxe5 42. Kf1 f4 43. Ke2 f5 44. g3 fxg3 45. fxg3 Kd4 46. Rd1+ Kc4 47. Rc1+ Kxb5 48. Rb1+ Kc5 49. Rxb6 Kxb6 50. Ke3 Kc5 51. g4 fxg4 52. Kxe4 Kd6 53. Kf4 Kd5 54. Kxg4 1/2-1/2

[Event "POL-ch U20"]
[Site "Chotowa"]
[Date "2023.10.24"]
[Round "1"]
[White "Labedz, Dawid"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "B44"]
[WhiteElo "1579"]
[BlackElo "2143"]
[PlyCount "141"]
[EventDate "2023.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "Mega2024 Update 01"]
[Source "Chessbase"]
[SourceDate "2023.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2023.11.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Qa5 9. Bd2 Be7 10. Be2 Qe5 11. f4 Qc5 12. Nc2 Nd4 13. Nxd4 Qxd4 14. Qc1 Qc5 15. Be3 Qc7 16. 0-0 Bd7 17. Qd2 0-0 18. Rac1 Rac8 19. b3 Bc6 20. Bf3 Qb8 21. g4 b5 22. cxb5 axb5 23. g5 Nd7 24. Qg2 Rfe8 25. Ne2 Ba8 26. h4 Rxc1 27. Rxc1 Rc8 28. h5 Rxc1+ 29. Nxc1 Bd8 30. Qf2 Bb6 31. Nd3 Bxe3 32. Qxe3 Qc7 33. Qd2 e5 34. f5 f6 35. h6 fxg5 36. Qxg5 Nf6 37. Nf2 Kf8 38. Kf1 b4 39. hxg7+ Qxg7 40. Qd2 Qc7 41. Qxb4 Bb7 42. Qd2 Ba6+ 43. Be2 Bxe2+ 44. Kxe2 Qc6 45. Qd3 d5 46. Kf3 Qd7 47. Ke2 Qc6 48. exd5 Nxd5 49. Kd2 Qc5 50. Ne4 Qb4+ 51. Kc2 Qa5 52. Kc1 Qa3+ 53. Kb1 Qa5 54. Qd2 Qxd2 55. Nxd2 h5 56. Ne4 h4 57. a4 h3 58. Kc1 h2 59. Nf2 e4 60. Nh1 Ke7 61. Ng3 Kf6 62. Kd2 Ke5 63. Ke2 Ne7 64. f6 Nf5 65. Nh1 Kxf6 66. a5 Ke5 67. a6 Nd4+ 68. Ke3 Nb5 69. Nf2 Kd5 70. Nh1 Na7 71. Nf2 1/2-1/2

[Event "POL-chT 1st League"]
[Site "Leba"]
[Date "2023.10.01"]
[Round "9.8"]
[White "Flak, Pawel"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2156"]
[BlackElo "2143"]
[PlyCount "86"]
[EventDate "2023.09.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Bydgoszcz Wiartrak"]
[BlackTeam "Jastrzebie Zdroj Pionier"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Nc3 c5 8. e4 cxd4 9. Qxd4 Qxd4 10. Nxd4 Bc5 11. Nf3 Nc6 12. e5 Nd5 13. Ne4 Be7 14. Rd1 b5 15. Nc3 Nxc3 16. bxc3 Rb8 17. Be3 a5 18. Nd2 Bb7 19. f4 Ba3 20. Ne4 Ne7 21. Bc1 Bxc1 22. Rdxc1 Bd5 23. a3 Rfd8 24. Rab1 Nf5 25. Rb2 Ne3 26. Bf3 Bc6 27. Re1 Nd1 28. Rc2 Rd3 29. Bxd1 Bxe4 30. Rb2 Bc6 31. Bc2 Rxc3 32. Rd1 Rxa3 33. Rd6 Be8 34. f5 Ra1+ 35. Bd1 c3 36. Rf2 exf5 37. Kg2 b4 38. e6 fxe6 39. Bb3 Bf7 40. Ra6 Rb1 41. Bc2 Rb2 42. Rxa5 b3 43. Bxb3 R2xb3 0-1

[Event "POL-chT 1st League"]
[Site "Leba"]
[Date "2023.09.29"]
[Round "7.4"]
[White "Rog, Bartlomiej"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "B29"]
[WhiteElo "2168"]
[BlackElo "2143"]
[PlyCount "77"]
[EventDate "2023.09.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Gorzow Wielkopolski Stilon"]
[BlackTeam "Jastrzebie Zdroj Pionier"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3 5. dxc3 Nc6 6. Bc4 Qc7 7. Bf4 e6 8. 0-0 h6 9. Qe2 b6 10. Rad1 Bb7 11. Ba6 0-0-0 12. Bxb7+ Kxb7 13. Bg3 g5 14. Nd2 d5 15. exd6 Bxd6 16. Bxd6 Rxd6 17. Nc4 Rxd1 18. Rxd1 Rd8 19. Rxd8 Qxd8 20. Qh5 f5 21. h3 b5 22. Ne3 Qf6 23. a4 a6 24. Qe8 Kb6 25. Qd7 h5 26. a5+ Nxa5 27. Qd6+ Kb7 28. Nd5 Qf7 29. Qb6+ Kc8 30. Qxa6+ Kb8 31. Qd6+ Kb7 32. Qb6+ Kc8 33. Qxc5+ Kb8 34. Qd6+ Kb7 35. Nb4 Qc7 36. Qa6+ Kb8 37. Qxa5 Qxa5 38. Nc6+ Kc7 39. Nxa5 1-0

[Event "POL-chT 1st League"]
[Site "Leba"]
[Date "2023.09.27"]
[Round "5.3"]
[White "Gesicki, Jacek"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "B46"]
[WhiteElo "2204"]
[BlackElo "2143"]
[PlyCount "47"]
[EventDate "2023.09.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Sedziszow Malopolski"]
[BlackTeam "Jastrzebie Zdroj Pionier"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. g3 Nxd4 7. Qxd4 b5 8. Bg2 Bb7 9. 0-0 Ne7 10. Bf4 f6 11. Bd6 Nc6 12. Qd2 Bxd6 13. Qxd6 Rc8 14. Qd2 Ne5 15. Nd1 d5 16. exd5 Bxd5 17. Nc3 Bxg2 18. Qxd8+ Kxd8 19. Kxg2 Nc4 20. a4 Nxb2 21. Rfb1 Rxc3 22. Rxb2 Kd7 23. axb5 axb5 24. Ra7+ 1/2-1/2

[Event "POL-chT 1st League"]
[Site "Leba"]
[Date "2023.09.26"]
[Round "4.6"]
[White "Pniaczek, Marek"]
[Black "Adamczewski, Maciej"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2143"]
[BlackElo "2084"]
[PlyCount "79"]
[EventDate "2023.09.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Jastrzebie Zdroj Pionier"]
[BlackTeam "Strzelce Opolskie Strzelec"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. 0-0 cxd4 8. Re1 Nge7 9. h4 h6 10. h5 Rc8 11. a3 a6 12. b4 dxc3 13. Nxc3 Nd4 14. Be3 Nxf3+ 15. Qxf3 Qd8 16. Bd2 Nc6 17. Qg4 Qb6 18. Rad1 Qd4 19. Qg3 Ne7 20. Ne2 Qb2 21. Bc1 Qa2 22. Rd2 Qa1 23. f4 Nf5 24. Bxf5 exf5 25. Qb3 d4 26. Ra2 Rc3 27. Nxc3 Qxc3 28. Qxc3 dxc3 29. Rc2 Be7 30. Rxc3 Bd8 31. Be3 0-0 32. Rd1 Ba4 33. Rd2 Re8 34. Rc8 Be7 35. Rxe8+ Bxe8 36. Bc5 Bxc5+ 37. bxc5 Kf8 38. Rd8 f6 39. exf6 gxf6 40. Rb8 1-0

[Event "POL-chT 1st League"]
[Site "Leba"]
[Date "2023.09.24"]
[Round "2.6"]
[White "Mazus, Jakub"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1559"]
[BlackElo "2143"]
[PlyCount "66"]
[EventDate "2023.09.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Lublin LKSz"]
[BlackTeam "Jastrzebie Zdroj Pionier"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Ba6 9. b3 g6 10. Ba3 Nb4 11. Nc3 Nc2+ 12. Qxc2 Qxe5+ 13. Be2 Bxa3 14. 0-0 0-0 15. Rad1 Rfe8 16. Bg4 f5 17. Bf3 Bb4 18. Ne2 Re7 19. h4 Rae8 20. g3 Qf6 21. Kg2 Bd6 22. Rd3 f4 23. Nc3 Bc5 24. Ne2 fxg3 25. fxg3 Qg7 26. h5 d5 27. cxd5 Bxd3 28. Qxd3 Qb2 29. Re1 Bb4 30. d6 Bxd6 31. hxg6 Kh8 32. Kf1 Re3 33. Qf5 Rf8 0-1

[Event "POL-chT 1st League"]
[Site "Leba"]
[Date "2023.09.23"]
[Round "1.7"]
[White "Pniaczek, Marek"]
[Black "Krawczyk, Wojciech"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2143"]
[BlackElo "2047"]
[PlyCount "167"]
[EventDate "2023.09.23"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]
[WhiteTeam "Jastrzebie Zdroj Pionier"]
[BlackTeam "Wieliczka MKS MOS"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Bd3 Nh5 6. Bg5 Be7 7. Bxe7 Qxe7 8. Nbd2 d6 9. 0-0 0-0 10. Re1 Nd7 11. e4 Nf4 12. Bf1 e5 13. g3 Ne6 14. d5 Ng5 15. Nh4 g6 16. Bg2 Rac8 17. Re3 Nf6 18. Qe2 h5 19. f4 exf4 20. gxf4 Ngxe4 21. Qe1 Bxd5 22. Nxe4 Bxe4 23. Bxe4 Rce8 24. Nxg6 fxg6 25. Bd5+ Nxd5 26. Rxe7 Rxe7 27. Qg3 Nxf4 28. Kh1 Kh7 29. Rd1 Re5 30. a4 g5 31. b3 Rfe8 32. Qc3 R8e7 33. Rf1 Re3 34. Qd2 h4 35. a5 g4 36. Qf2 Ng6 37. Rg1 R3e4 38. Qf5 Rf4 39. Qh5+ Kg7 40. Rxg4 Rxg4 41. Qxg4 bxa5 42. Qd4+ Kh7 43. Qxa7 Re1+ 44. Kg2 Re2+ 45. Kh3 Rxc2 46. Qxa5 Kh6 47. b4 Rc3+ 48. Kg4 Rc4+ 49. Kf3 Ne5+ 50. Ke3 Kg5 51. Qa8 Kg4 52. Qc8+ Kg5 53. Qg8+ Kf6 54. b5 Ke7 55. Qg5+ Kd7 56. Qf5+ Ke7 57. Qg5+ Ke6 58. Qg8+ Kd7 59. Qf8 Rb4 60. Qf5+ Ke7 61. Qc8 Rc4 62. Qf5 Rc3+ 63. Kd4 Rc5 64. Qh7+ Ke8 65. Ke3 Nf7 66. b6 Re5+ 67. Kd3 cxb6 68. Qxh4 b5 69. Qg4 Rc5 70. Qe6+ Kf8 71. h4 b4 72. Kd4 Re5 73. Qc8+ Kg7 74. Qg4+ Kf6 75. h5 Rg5 76. Qf4+ Rf5 77. Qh4+ Kg7 78. h6+ Nxh6 79. Qg3+ Kh7 80. Qxd6 Rg5 81. Qe7+ Kg6 82. Qxg5+ Kxg5 83. Kc4 Kf6 84. Kxb4 1/2-1/2

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.10"]
[Round "6"]
[White "Chrobak, Piotr"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1656"]
[BlackElo "2143"]
[PlyCount "92"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. c4 Nc6 3. Nc3 g6 4. d3 Bg7 5. f4 e6 6. Nf3 d6 7. Be3 Nd4 8. h4 h5 9. Qd2 Ne7 10. Be2 Nec6 11. g3 a6 12. Kf2 Rb8 13. Bxd4 Nxd4 14. Nxd4 Bxd4+ 15. Kg2 b5 16. cxb5 axb5 17. Raf1 b4 18. Nd1 Bb7 19. Bf3 Ra8 20. b3 Qa5 21. f5 Qxa2 22. Qxa2 Rxa2+ 23. Kh3 exf5 24. exf5 Bc8 25. Be4 d5 26. Bxd5 Bxf5+ 27. Rxf5 gxf5 28. Re1+ Kf8 29. Ne3 Bxe3 30. Rxe3 Rg8 31. Rf3 Ke7 32. Rxf5 Rg7 33. Rxh5 Re2 34. Be4 Re3 35. Rxc5 Rgxg3+ 36. Kh2 Rh3+ 37. Kg2 Rxh4 38. Kf2 Rexe4 39. dxe4 Rxe4 40. Kf3 Rh4 41. Kg3 Rd4 42. Kf2 Rd3 43. Rc7+ Kf8 44. Ke2 Rxb3 45. Kd2 Rh3 46. Kc2 Rc3+ 0-1

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.10"]
[Round "8"]
[White "Kyc, Jerzy"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2304"]
[BlackElo "2143"]
[PlyCount "89"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 Bc5 6. 0-0 d6 7. c3 0-0 8. Re1 Bb6 9. h3 h6 10. Nbd2 Ne7 11. Nf1 Ng6 12. Ng3 c5 13. d4 cxd4 14. cxd4 Be6 15. Be3 Rc8 16. d5 Bd7 17. Bxd7 Nxd7 18. Nf5 Bxe3 19. Rxe3 Qf6 20. g4 Nf4 21. Kh2 Rfe8 22. Qb3 b5 23. Rg1 Rc4 24. Nd2 Nc5 25. Qd1 Ra4 26. a3 Ncd3 27. Qc2 Nxf2 28. b3 Rxa3 29. Nb1 N2xh3 30. Rxh3 Nxh3 31. Kxh3 Ra5 32. Qd2 b4 33. g5 Qg6 34. Rg3 Qh5+ 35. Kg2 Ra1 36. Qb2 Ra5 37. gxh6 g6 38. Nxd6 Rd8 39. Nb7 Raxd5 40. exd5 Rxd5 41. Qc2 Rd1 42. h7+ Kxh7 43. Rh3 Rg1+ 44. Kxg1 Qxh3 45. Qh2 1-0

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.10"]
[Round "7"]
[White "Pniaczek, Marek"]
[Black "Kucharski, Bartlomiej"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2143"]
[BlackElo "1983"]
[PlyCount "89"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Bc4 Be6 6. Bxe6 fxe6 7. Be3 Nd7 8. f3 Bc5 9. Ke2 Ke7 10. Nh3 Ngf6 11. Nf2 c6 12. Nd3 Bxe3 13. Kxe3 Ne8 14. Nd2 Nd6 15. a4 b6 16. b3 Rhc8 17. g3 c5 18. Nb2 Nb8 19. Ndc4 Nxc4+ 20. Nxc4 Nc6 21. c3 Rd8 22. f4 exf4+ 23. gxf4 Rd7 24. Rad1 Rad8 25. Rxd7+ Rxd7 26. Rg1 Kf8 27. h4 g6 28. Rh1 Kf7 29. h5 Kg7 30. Rg1 Kf7 31. Rh1 Kg7 32. Ke2 e5 33. fxe5 Re7 34. hxg6 hxg6 35. Ke3 Nxe5 36. Nxe5 Rxe5 37. Kf4 Rh5 38. Rxh5 gxh5 39. Kg5 a6 40. Kxh5 Kf6 41. Kg4 Ke5 42. Kf3 b5 43. axb5 axb5 44. Ke3 b4 45. c4 1-0

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.10"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Sanetra, Szymon"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2143"]
[BlackElo "2018"]
[PlyCount "75"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. Be2 e6 5. d4 dxe4 6. Nxe4 Nd7 7. 0-0 Ngf6 8. Ng3 Qc7 9. h3 Bxf3 10. Bxf3 Bd6 11. Ne4 Nxe4 12. Bxe4 Nf6 13. Bf3 Bh2+ 14. Kh1 Bf4 15. Re1 0-0 16. c3 Rad8 17. Qc2 Rfe8 18. Bxf4 Qxf4 19. Re5 Nd7 20. Re4 Qf6 21. Rae1 g6 22. a4 Qg7 23. a5 a6 24. Qb3 Nf6 25. Re5 Re7 26. g3 Red7 27. h4 h5 28. Kg2 Qf8 29. Rg5 Kh7 30. Qc2 Qh6 31. Ree5 Rd6 32. Rxh5 Nxh5 33. Rxh5 Qxh5 34. Bxh5 Rd5 35. Bf3 Rxa5 36. h5 Kg7 37. hxg6 fxg6 38. Qb3 1-0

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.09"]
[Round "4"]
[White "Bartoszewicz, Marcin"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1825"]
[BlackElo "2143"]
[PlyCount "126"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[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. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 b6 7. Nc3 Bb7 8. Bd3 d6 9. 0-0 Nxc3 10. bxc3 Be7 11. Qe2 0-0 12. exd6 Qxd6 13. Be4 Bxe4 14. Qxe4 Qc6 15. Qd3 Nd7 16. Bd2 Rac8 17. a4 Rfd8 18. Qb5 Nf6 19. Qxc6 Rxc6 20. Ne5 Rcc8 21. Rfc1 Ne4 22. Be1 Bg5 23. Rcb1 Nxc3 24. Bxc3 Rxc3 25. a5 Rdc8 26. axb6 axb6 27. g3 Rc1+ 28. Kg2 Rxb1 29. Rxb1 Bd8 30. Kf3 f6 31. Nd7 Rc7 32. Nb8 Kf7 33. Ke3 Rc8 34. Na6 Rc3+ 35. Kd2 Rf3 36. Ke2 Ra3 37. Nb4 Be7 38. Nc6 Ra6 39. Rb5 Bd6 40. Ke3 Ke8 41. Nb4 Bxb4 42. Rxb4 Kd7 43. h4 Kc6 44. Rc4+ Kb7 45. h5 b5 46. Rb4 Kc6 47. Rb3 Rb6 48. Rb4 Kd5 49. Kd3 e5 50. dxe5 Kxe5 51. Ke3 Kd5 52. Kd3 Kc5 53. Kc3 Ra6 54. Rg4 Ra7 55. Kb3 Kd5 56. Rb4 Rb7 57. Kc3 f5 58. g4 fxg4 59. Rxg4 b4+ 60. Kb3 Ke5 61. Rc4 Kf5 62. Rd4 Kg5 63. Rd5+ Kh6 0-1

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.09"]
[Round "3"]
[White "Pniaczek, Marek"]
[Black "Teclaf, Pawel"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2143"]
[BlackElo "2586"]
[PlyCount "140"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. Bg5 Qb6 5. Rb1 Bg4 6. Be2 Bxe2 7. Ngxe2 Nbd7 8. 0-0 e6 9. d5 cxd5 10. exd5 e5 11. Ng3 g6 12. Qd2 Bg7 13. Be3 Qa6 14. Bh6 0-0 15. Bxg7 Kxg7 16. h4 h6 17. h5 Rac8 18. Nce4 Nxe4 19. Nxe4 f5 20. Nc3 g5 21. a4 Qb6 22. Ne2 Rc4 23. b3 Rg4 24. a5 Qb4 25. Qe3 Qe4 26. Qxe4 Rxe4 27. Rfe1 Kf6 28. f3 Rb4 29. Red1 Rc8 30. c4 Nc5 31. Nc1 b6 32. axb6 axb6 33. Kf2 b5 34. cxb5 Rxb5 35. b4 Na4 36. Ne2 Nb6 37. Rdc1 Rxc1 38. Rxc1 Nxd5 39. Rc8 Rxb4 40. Rh8 Kg7 41. Rd8 Rb2 42. Rd7+ Kf8 43. Ke1 Nf6 44. Rxd6 Ke7 45. Ra6 Nxh5 46. Rxh6 Nf4 47. Nxf4 gxf4 48. Kf1 Rd2 49. Rh5 Kf6 50. Rh6+ Kf7 51. Rh5 Kg6 52. Rh8 e4 53. fxe4 fxe4 54. Re8 Kf5 55. Rg8 e3 56. Ke1 Rd6 57. Ke2 Rd2+ 58. Ke1 Rf2 59. Rf8+ Kg4 60. Rg8+ Kf5 61. Rf8+ Ke6 62. Rg8 Rc2 63. Re8+ Kd5 64. g3 Kd4 65. gxf4 Kd3 66. Rd8+ Ke4 67. f5 Kf3 68. Kd1 Ra2 69. Re8 e2+ 70. Kc1 Ra1+ 0-1

[Event "Katowice POL-HUN 10th"]
[Site "Katowice"]
[Date "2023.09.09"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Terkiewicz, Bruno"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2143"]
[BlackElo "1887"]
[PlyCount "74"]
[EventDate "2023.09.09"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[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. Bb5 e5 4. 0-0 Bd6 5. d3 Nge7 6. a4 0-0 7. Nc3 Bc7 8. Bc4 d6 9. h3 h6 10. Be3 Be6 11. Nd5 Bxd5 12. Bxd5 Nxd5 13. exd5 Ne7 14. c4 f5 15. Re1 Ba5 16. Bd2 Bxd2 17. Nxd2 Ng6 18. Qf3 Qg5 19. Nf1 Nh4 20. Qg3 Qh5 21. Nh2 Rf6 22. Nf3 Ng6 23. Ra3 Nf4 24. Qh4 Qf7 25. Kh1 g5 26. Qg3 Nh5 27. Qh2 g4 28. Ng1 Kh7 29. d4 cxd4 30. c5 Qxd5 31. hxg4 Nf4 32. cxd6 d3 33. Nf3 fxg4 34. Rxe5 Qxd6 35. Ng5+ Kg7 36. Rb5 d2 37. Rxb7+ Kg8 0-1

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.19"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Milosevic, Milos"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2159"]
[BlackElo "2417"]
[PlyCount "60"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 Nc6 2. d4 d5 3. e5 Bf5 4. c3 Qd7 5. f4 h5 6. Nd2 f6 7. Ndf3 h4 8. h3 e6 9. Bd3 Nce7 10. Ne2 Bxd3 11. Qxd3 Nf5 12. Bd2 c5 13. dxc5 Bxc5 14. Ned4 Nge7 15. exf6 gxf6 16. 0-0-0 Ng3 17. Rhe1 Ne4 18. Rxe4 dxe4 19. Qxe4 Bxd4 20. Nxd4 Qd5 21. Qxe6 Qxe6 22. Nxe6 Kf7 23. Re1 Rhg8 24. Re2 Nf5 25. Nc5 b6 26. Nd3 Rad8 27. Kc2 Ng3 28. Rf2 Rd7 29. Be1 Re8 30. Rd2 Rxd3 0-1

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.18"]
[Round "8"]
[White "Ochedzan, Tymon"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "B46"]
[WhiteElo "2208"]
[BlackElo "2159"]
[PlyCount "80"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Nxc6 bxc6 7. Bd3 d5 8. 0-0 Nf6 9. Re1 Be7 10. Qf3 Bb7 11. Bf4 0-0 12. Rad1 Re8 13. h4 Nd7 14. h5 d4 15. Na4 e5 16. Bc1 Bg5 17. h6 Bxc1 18. Rxc1 g6 19. Qg3 c5 20. b3 Qf6 21. Rf1 g5 22. Qh3 Bc8 23. c3 Nb6 24. Qh5 Nxa4 25. bxa4 Qg6 26. Qh2 Qd6 27. cxd4 cxd4 28. Qh5 Qg6 29. Qh2 Qd6 30. Qh5 Qg6 31. Qh2 Bd7 32. Rc5 Qd6 33. Rd5 Qe7 34. Rc1 Qa3 35. Rc7 Qxd3 36. Qh5 Qb1+ 37. Kh2 Qxe4 38. Rdxd7 Qf4+ 39. g3 Qxf2+ 40. Kh1 Qf1+ 1/2-1/2

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.17"]
[Round "7"]
[White "Rog, Bartlomiej"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "C28"]
[WhiteElo "2193"]
[BlackElo "2159"]
[PlyCount "122"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. f4 Nxe4 5. Nxe4 d5 6. Bd3 dxe4 7. Bxe4 exf4 8. Bxc6+ bxc6 9. Nf3 Ba6 10. d3 Bb4+ 11. Bd2 Qe7+ 12. Qe2 Qxe2+ 13. Kxe2 Bd6 14. Rae1 0-0 15. Kf2 Rfe8 16. h4 f6 17. h5 g5 18. hxg6 hxg6 19. Bc3 Rxe1 20. Rxe1 Kf7 21. Rh1 Re8 22. Nd2 Bc5+ 23. Kf1 Bb6 24. a4 Kg7 25. Nf3 Kf7 26. a5 Be3 27. Rh7+ Ke6 28. Rxc7 Rc8 29. Rg7 g5 30. Rg6 Rf8 31. Nxg5+ Kf5 32. Nh7 Kxg6 33. Nxf8+ Kf7 34. Nd7 c5 35. Nxf6 c4 36. Ke2 cxd3+ 37. cxd3 Ke6 38. g3 Bc1 39. gxf4 Bxf4 40. Ne4 Kd5 41. b4 Bh6 42. Nc5 Bb5 43. Ne4 Ba6 44. Nf6+ Ke6 45. Ng4 Bf4 46. Bd4 Bc7 47. Kd2 Bb5 48. Kc3 a6 49. Ne3 Bg3 50. Nc2 Kd5 51. Bg7 Bf2 52. Bd4 Bh4 53. Ne3+ Kc6 54. Nc4 Be1+ 55. Kb3 Kd5 56. Bc5 Bg3 57. Ne3+ Ke6 58. Kc3 Be1+ 59. Kb3 Bxd3 60. Nc2 Bxc2+ 61. Kxc2 Bxb4 1/2-1/2

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.14"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Zdybel, Przemyslaw"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2159"]
[BlackElo "2223"]
[PlyCount "90"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 Ngf6 5. Nc3 g6 6. a5 a6 7. Bc4 h6 8. 0-0 Bg7 9. d4 cxd4 10. Nxd4 0-0 11. Re1 Qc7 12. Bf1 b5 13. axb6 Nxb6 14. Na4 Nfd7 15. c3 Bb7 16. f3 Rfd8 17. Nxb6 Nxb6 18. Qb3 e5 19. Nc2 Rdb8 20. Be3 Bc8 21. Na3 Be6 22. Qc2 d5 23. exd5 Nxd5 24. Bf2 Nf4 25. Nb1 Bf5 26. Qc1 Bd3 27. Qd2 Rd8 28. Qe3 Rab8 29. b4 Qc8 30. Ra5 Qf5 31. Na3 Bxf1 32. Kxf1 Rd3 33. Qe4 Rxc3 34. Qxf5 gxf5 35. b5 axb5 36. Nxb5 Rc2 37. Rd1 Bf8 38. Rb1 Nd3 39. Ba7 Rb7 40. Rd1 Bb4 41. Ra4 Rxb5 42. Rxd3 Bc5 43. Rd1 Rf2+ 44. Ke1 Bxa7 45. Rxa7 Rxg2 0-1

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.14"]
[Round "4"]
[White "Redzisz, Michal"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2229"]
[BlackElo "2159"]
[PlyCount "32"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 0-0 8. Qd2 Nd7 9. 0-0-0 Nf6 10. Bd3 c5 11. Bg5 Be6 12. Qf4 h6 13. Bxh6 gxh6 14. Qxh6 Re8 15. Qg5+ Kf8 16. Qh6+ Kg8 1/2-1/2

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.13"]
[Round "3"]
[White "Pniaczek, Marek"]
[Black "Doluhanova, Evgeniya"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2159"]
[BlackElo "2260"]
[PlyCount "62"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. b4 Be7 7. e5 Ne4 8. b5 Na5 9. Bd3 d5 10. cxd4 Bb4+ 11. Bd2 Nxd2 12. Nbxd2 Nc4 13. 0-0 Nxd2 14. Nxd2 Bc3 15. Rc1 Bxd4 16. Nb3 Bb6 17. a4 a5 18. bxa6 bxa6 19. a5 Ba7 20. Qc2 Bd7 21. Bxa6 0-0 22. Bb7 Rb8 23. Qxc7 Ba4 24. Na1 Bb5 25. Rfd1 Qh4 26. g3 Bxf2+ 27. Kxf2 Qxh2+ 28. Ke3 Qxg3+ 29. Kd4 Qf2+ 30. Kc3 Qe3+ 31. Kb2 Ba6 0-1

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.12"]
[Round "2"]
[White "Niekras, Dawid"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "B46"]
[WhiteElo "2316"]
[BlackElo "2159"]
[PlyCount "59"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Nxc6 bxc6 7. Qf3 d5 8. Qg3 h5 9. h4 d4 10. Nb1 Nf6 11. Nd2 Ng4 12. Nc4 Bb4+ 13. Kd1 Qf6 14. f3 Ne3+ 15. Bxe3 dxe3 16. e5 Qd8+ 17. Bd3 0-0 18. Qg5 Qxg5 19. hxg5 g6 20. Ke2 a5 21. Nxe3 a4 22. Rh4 Be7 23. f4 Rb8 24. b3 axb3 25. axb3 Rb4 26. Bc4 c5 27. g4 Bb7 28. gxh5 Be4 29. hxg6 Bxg6 30. Rah1 1-0

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2023.08.11"]
[Round "1"]
[White "Pniaczek, Marek"]
[Black "Citak, Selim"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2159"]
[BlackElo "2319"]
[PlyCount "79"]
[EventDate "2023.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. 0-0 0-0 6. c3 d5 7. exd5 Nxd5 8. Re1 Bg4 9. Nbd2 Nb6 10. h3 Bh5 11. Bb3 Qxd3 12. Nxe5 Qf5 13. Nef3 Rad8 14. Qe2 Nd5 15. Ne4 Bxf3 16. Qxf3 Qxf3 17. gxf3 Bb6 18. a4 a5 19. Bg5 Nde7 20. Rad1 Rxd1 21. Rxd1 h6 22. Bf4 Rd8 23. Rxd8+ Nxd8 24. Nd2 Ne6 25. Bh2 Ng5 26. Kg2 Nf5 27. Bc2 Nd6 28. Ne4 Ne8 29. Nxg5 hxg5 30. f4 gxf4 31. Bxf4 Bc5 32. Kf3 Kf8 33. Be4 c6 34. Bd2 Nd6 35. Bd3 Ke7 36. b4 axb4 37. cxb4 Bd4 38. Bf4 Bc3 39. b5 cxb5 40. Bxd6+ 1/2-1/2

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "7"]
[White "Butolo, Alexandru Mircea"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2005"]
[BlackElo "2185"]
[PlyCount "83"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 0-0-0 9. Re1 Be6 10. Nf1 Be7 11. Bg5 Qg6 12. Qd2 f6 13. Be3 Bxh3 14. Nh4 Qg4 15. Nh2 Qxh4 16. g3 Qg5 17. Bxg5 fxg5 18. Nf3 Nh6 19. Nxe5 h4 20. Ng6 Rhe8 21. Nxe7+ Rxe7 22. Qxg5 Rde8 23. Qxh4 Bd7 24. f3 Rf7 25. Kg2 Ref8 26. Rf1 Rf6 27. g4 Rg6 28. g5 Nf7 29. f4 Rh8 30. Qg3 Bh3+ 31. Qxh3+ Rxh3 32. Kxh3 Rd6 33. Kg4 Kd7 34. e5 Rd4 35. Rae1 Nd8 36. Re4 Rd5 37. f5 Nf7 38. e6+ Ke7 39. f6+ Kf8 40. exf7 gxf6 41. Rxf6 Rxg5+ 42. Kxg5 1-0

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "2"]
[White "Morefield, Jason P"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2226"]
[BlackElo "2185"]
[PlyCount "55"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. a4 Na5 8. Ba2 0-0 9. d3 d6 10. Bd2 c5 11. axb5 axb5 12. b4 cxb4 13. Bxb4 Bg4 14. Nbd2 Nc6 15. Bc3 d5 16. h3 Bxf3 17. Qxf3 dxe4 18. Nxe4 Nd4 19. Nxf6+ Bxf6 20. Qd1 e4 21. dxe4 Ne2+ 22. Qxe2 Bxc3 23. Rad1 Qe7 24. Bb3 b4 25. Rd3 Rfd8 26. Rfd1 g6 27. Rf3 Rxd1+ 28. Qe1 0-1

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "3"]
[White "Pniaczek, Marek"]
[Black "Bacrot, Etienne"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2185"]
[BlackElo "2662"]
[PlyCount "52"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. 0-0 Bd7 5. Re1 a6 6. Bf1 g6 7. c3 Bg7 8. d4 Nf6 9. h3 0-0 10. Bg5 h6 11. Bf4 Qb6 12. Qd2 g5 13. Bh2 cxd4 14. cxd4 g4 15. hxg4 Bxg4 16. e5 Nd5 17. Bc4 e6 18. exd6 Bxf3 19. gxf3 Nxd4 20. Bxd5 exd5 21. Kg2 Kh8 22. Nc3 Rg8 23. Nxd5 Qc6 24. Ne7 Qxf3+ 25. Kf1 Qh1+ 26. Bg1 Qh3# 0-1

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "8"]
[White "Pniaczek, Marek"]
[Black "Garcia Correa, Jose Ricardo"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2185"]
[BlackElo "2103"]
[PlyCount "155"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. c4 Qc7 6. Nc3 Nf6 7. Be3 Bb4 8. Qb3 Bxc3+ 9. Qxc3 Nxe4 10. Qa3 d6 11. Rd1 0-0 12. Nb5 axb5 13. Qxa8 bxc4 14. Be2 Nc6 15. 0-0 d5 16. Qa3 f5 17. f3 Nf6 18. b3 b5 19. Qc5 Bd7 20. a4 bxa4 21. bxc4 Rc8 22. Bg5 Qe5 23. Rfe1 Nd4 24. Qxd4 Qxd4+ 25. Rxd4 e5 26. Rdd1 d4 27. Bxf6 gxf6 28. f4 Be6 29. Ra1 e4 30. Rxa4 d3 31. Bh5 Kg7 32. Kf2 Kh6 33. Bd1 Bxc4 34. Ke3 Kg6 35. Kd2 h5 36. Re3 h4 37. g3 h3 38. g4 Be6 39. gxf5+ Kxf5 40. Raxe4 Bd5 41. Rd4 Bg2 42. Rdxd3 Kxf4 43. Rd4+ Kg5 44. Rg4+ Kf5 45. Rd4 Ra8 46. Bf3 Ra2+ 47. Ke1 Rb2 48. Rd2 Rb1+ 49. Kf2 Rf1+ 50. Kg3 Kg5 51. Bxg2 hxg2 52. Rxg2 Ra1 53. Kh3+ Kf5 54. Rf3+ Ke6 55. Re2+ Kf7 56. Ref2 Ra6 57. Kg4 Kg6 58. Rf4 Rc6 59. h4 Ra6 60. h5+ Kg7 61. Kf5 Ra5+ 62. Kg4 Ra6 63. Kh4 Rc6 64. Rg2+ Kf7 65. h6 Rc1 66. Rg3 Rh1+ 67. Rh3 Rg1 68. Rg4 Ra1 69. h7 Ra8 70. Kg3 Rh8 71. Kf4 Ke6 72. Rg8 Rxh7 73. Rxh7 f5 74. Rgg7 Kf6 75. Rf7+ Kg6 76. Rhg7+ Kh6 77. Rg1 Kh5 78. Rh7# 1-0

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "6"]
[White "Pniaczek, Marek"]
[Black "Omelja, Artem"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "2185"]
[BlackElo "2457"]
[PlyCount "37"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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 Bc5 7. Nd6+ Ke7 8. Bf4 e5 9. Nf5+ Kf8 10. Bg5 d6 11. Ne3 Be6 12. Ncd5 Qa5+ 13. c3 Nxe4 14. b4 Bxb4 15. cxb4 Nxb4 16. Be7+ Ke8 17. Bb5+ Nc6+ 18. Kf1 Qxb5+ 19. Kg1 0-1

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Salik, Serkan"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2185"]
[BlackElo "2037"]
[PlyCount "90"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. 0-0 d6 7. Re1 Be6 8. Bxe6 fxe6 9. b4 Bb6 10. a4 a6 11. a5 Ba7 12. Nbd2 Ng4 13. Re2 Qf6 14. Nf1 d5 15. h3 Nh6 16. Ng3 Qg6 17. Be3 Rxf3 18. gxf3 Bxe3 19. Rxe3 d4 20. cxd4 Nxd4 21. Kh2 Rf8 22. Qh1 Qf7 23. Qg2 Nxf3+ 24. Kh1 Nh4 25. Qg1 Ng6 26. Ra2 Nf4 27. Qh2 Qe7 28. Rb2 Rd8 29. Ne2 Nxd3 30. Rd2 Nxf2+ 31. Qxf2 Rxd2 32. Qe1 Qd8 33. Nc3 Rd4 34. Rf3 Qe7 35. b5 Nf7 36. bxa6 bxa6 37. Qb1 Qb4 38. Qa2 Qc4 39. Qb1 g6 40. Qb8+ Rd8 41. Qb2 Ng5 42. Re3 Qf1+ 43. Kh2 Qf4+ 44. Rg3 Rd2+ 45. Kh1 Qf1+ 0-1

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Vargas Pereda, Jesus Manuel"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2185"]
[BlackElo "1851"]
[PlyCount "65"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 Bg4 4. Be2 e6 5. d4 Nf6 6. e5 Nfd7 7. Ng5 Bxe2 8. Nxe2 c5 9. c3 Nc6 10. h4 h6 11. Nf3 cxd4 12. cxd4 Be7 13. Rh3 Qb6 14. Rg3 g6 15. Kf1 Bf8 16. Bd2 Bg7 17. b4 Ne7 18. Rc1 0-0 19. h5 Nf5 20. Rg4 Rac8 21. hxg6 fxg6 22. Rxg6 Kh7 23. Rg4 Rxc1 24. Qxc1 Rg8 25. Ng3 Qb5+ 26. Kg1 Nb6 27. Qc2 Rc8 28. Qb1 Qd7 29. Nh4 Rf8 30. Nhxf5 exf5 31. Rf4 Nc4 32. Bc1 Qa4 33. Be3 1-0

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "1"]
[White "Stoyanov, Tsvetan"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2454"]
[BlackElo "2185"]
[PlyCount "82"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 0-0 9. 0-0 cxd5 10. h3 c6 11. Qf3 Be6 12. Bg5 Be7 13. b3 h6 14. Bh4 Re8 15. Rad1 Qc7 16. Ne2 Nd7 17. Bxe7 Rxe7 18. Qg3 Ne5 19. Nd4 Nxd3 20. Rxd3 Qxg3 21. Rxg3 c5 22. Nc6 Rc7 23. Ne5 Re8 24. c3 Bxh3 25. Nxf7 Rxf7 26. Rxh3 Re2 27. Rd3 Rf5 28. a4 Rb2 29. c4 dxc4 30. bxc4 Rf4 31. Rd8+ Kh7 32. Rd7 a5 33. Ra7 Rxc4 34. Rxa5 Ra2 35. Ra7 Rcxa4 36. Rc7 Rc4 37. Rd1 Rcc2 38. Rdd7 Rxf2 39. Rxg7+ Kh8 40. Rg6 c4 41. Rxh6+ Kg8 0-1

[Event "Titled Tuesday intern op 25th Jul Late"]
[Site "Chess.com INT"]
[Date "2023.07.25"]
[Round "4"]
[White "Weetik, Vjacheslav"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2423"]
[BlackElo "2185"]
[PlyCount "69"]
[EventDate "2023.07.25"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Qc2 c6 8. Qxc4 b5 9. Qc2 Bb7 10. Nbd2 Qb6 11. a4 Nbd7 12. Nb3 c5 13. dxc5 Nxc5 14. Be3 Rac8 15. Rfc1 Nxb3 16. Qxb3 bxa4 17. Qxb6 axb6 18. Bxb6 Nd5 19. Bd4 Rxc1+ 20. Rxc1 a3 21. bxa3 Bxa3 22. Rb1 Bc6 23. Ne5 Ba8 24. Ra1 Bd6 25. h3 h6 26. Ra7 Bxe5 27. Bxe5 Nb6 28. f3 Nc4 29. Bc3 Bd5 30. e4 Ba8 31. Kf2 Rc8 32. Bf1 Nb6 33. Bd4 Rc2+ 34. Ke3 Rc1 35. Bxb6 1-0

[Event "Prague op"]
[Site "Prague"]
[Date "2023.06.23"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Greenfeld, Alon"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2200"]
[BlackElo "2475"]
[PlyCount "44"]
[EventDate "2023.06.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 0-0 8. Be2 d6 9. 0-0 Bd7 10. Qc2 Ng4 11. Bxg4 Bxg4 12. Qd2 Rc8 13. b3 a6 14. Rac1 Qa5 15. h3 Be6 16. Rfd1 Nxd4 17. Bxd4 Bxd4 18. Qxd4 b5 19. cxb5 axb5 20. Nd5 Bxd5 21. Qxd5 Qxa2 22. Qxb5 Rb8 1/2-1/2

[Event "SVK-ch Amateurs"]
[Site "Liptovsky Jan"]
[Date "2023.06.15"]
[Round "1"]
[White "Kucej, Robert"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "B46"]
[WhiteElo "1643"]
[BlackElo "2200"]
[PlyCount "72"]
[EventDate "2023.06.15"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SVK"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. a3 d6 7. Be2 Nf6 8. Bg5 h6 9. Be3 Be7 10. 0-0 0-0 11. Qd2 Nxd4 12. Bxd4 b5 13. Rad1 Bb7 14. e5 dxe5 15. Bxe5 Qb6 16. Qf4 Rac8 17. Rd3 Rc4 18. Qd2 Qc6 19. Rg3 Rh4 20. Bf3 Qb6 21. Rd1 Bxf3 22. Rxf3 Ne4 23. Nxe4 Rxe4 24. Bc3 Bg5 25. Bd4 Rd8 26. Bxb6 Rxd2 27. Rd3 Rxc2 28. Bd4 a5 29. Kf1 Ree2 30. Rb3 Bf6 31. Bxf6 Rxf2+ 32. Kg1 Rxg2+ 33. Kh1 Rxh2+ 34. Kg1 Rcg2+ 35. Kf1 gxf6 36. Rxb5 Rxb2 0-1

[Event "SVK-ch Amateurs"]
[Site "Liptovsky Jan"]
[Date "2023.06.15"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Kulich, Daniel"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2200"]
[BlackElo "1938"]
[PlyCount "83"]
[EventDate "2023.06.15"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "SVK"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Bc4 c6 6. Nf3 Bf5 7. 0-0 e6 8. Re1 Be7 9. h3 Nbd7 10. Nh4 Bg6 11. Nxg6 hxg6 12. Qd3 Qc7 13. Bxe6 fxe6 14. Qxg6+ Kf8 15. Rxe6 Qd8 16. Bf4 Qe8 17. Qd3 Qf7 18. Rae1 Re8 19. Rxe7 Rxe7 20. Bd6 Ng8 21. d5 Rh6 22. dxc6 Rxd6 23. Qxd6 bxc6 24. Rxe7 Qxe7 25. Qxc6 Qe1+ 26. Kh2 Ngf6 27. Qa8+ Kf7 28. Qxa7 Qe5+ 29. g3 Kg6 30. a4 Qf5 31. a5 Ne5 32. a6 Nf3+ 33. Kg2 Ng5 34. Qb7 Nfe4 35. Qb6+ Kh7 36. Qe3 Qxh3+ 37. Kg1 Nd2 38. Qd3+ g6 39. f4 Ngf3+ 40. Kf2 Qh2+ 41. Ke3 Qg1+ 42. Ke2 0-1

[Event "Ostrava Konik op-A"]
[Site "Ostrava"]
[Date "2023.05.10"]
[Round "5"]
[White "Lys, Josef"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "2041"]
[BlackElo "2228"]
[PlyCount "83"]
[EventDate "2023.05.06"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 dxc4 5. e3 a6 6. a4 b6 7. Bxc4 Bb7 8. 0-0 Bb4 9. Qb3 Qe7 10. Ne5 Nc6 11. Nxc6 Bxc6 12. f3 0-0 13. e4 e5 14. d5 Bc5+ 15. Kh1 Bd7 16. Bg5 Qd6 17. Ne2 h6 18. Bh4 Nh7 19. Qd3 a5 20. b3 Rae8 21. Rad1 f5 22. Bb5 Bxb5 23. Qxb5 g5 24. Bg3 fxe4 25. fxe4 Nf6 26. Qd3 Nh5 27. Nc3 Rxf1+ 28. Rxf1 Nf4 29. Qc4 Kg7 30. Bf2 Bxf2 31. Rxf2 c6 32. g3 cxd5 33. exd5 Nh3 34. Rf5 Qd7 35. Qe4 Qc8 36. Ne2 g4 37. Qxg4+ Ng5 38. h4 Rf8 39. Rxg5+ hxg5 40. Qxg5+ Kh7 41. Qh5+ Kg8 42. Qg6+ 1/2-1/2

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "3"]
[White "Aizenberg, Benny"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2366"]
[BlackElo "2228"]
[PlyCount "104"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 Nc6 6. cxd4 d6 7. Bc4 Nb6 8. Bb3 dxe5 9. d5 Na5 10. Nc3 f6 11. 0-0 e6 12. Nxe5 fxe5 13. Qh5+ g6 14. Qxe5 Rg8 15. dxe6 Nxb3 16. axb3 Qd6 17. Qb5+ Qc6 18. Be3 Qxb5 19. Nxb5 Nd5 20. Bxa7 Bxe6 21. Rfe1 Kf7 22. Rad1 Be7 23. Bd4 Rgd8 24. Rd3 Bf6 25. Rf3 Kg7 26. Bxf6+ Nxf6 27. Nc7 Bd5 28. Rf4 Rac8 29. Re7+ Kf8 30. Rxh7 Kg8 31. Re7 Re8 32. Rxe8+ Nxe8 33. h4 Nxc7 34. g4 Bxb3 35. Rb4 Bd5 36. Rb6 Bc6 37. f4 Nd5 38. Rb3 Nxf4 39. Kf2 Rf8 40. Kg3 Ne2+ 41. Kh2 Rf2+ 42. Kh3 Rf3+ 43. Rxf3 Bxf3 44. h5 gxh5 45. gxh5 Kh7 46. Kh4 Kh6 47. Kh3 Kxh5 48. b4 Kg5 49. Kh2 Kf5 50. Kh3 Ke5 51. Kh4 Kd5 52. Kg5 Kc4 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "1"]
[White "Mahdavi, Reza"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2324"]
[BlackElo "2228"]
[PlyCount "63"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. c4 c6 5. cxd5 cxd5 6. Qb3 Qb6 7. Qxb6 axb6 8. Nc3 Nc6 9. d3 e5 10. Bg5 d4 11. Nb5 Bb4+ 12. Nd2 Kd7 13. 0-0 Rhc8 14. a3 Bxd2 15. Bxd2 Be6 16. f4 e4 17. Rfc1 exd3 18. exd3 Bf5 19. Bxc6+ bxc6 20. Nxd4 Bxd3 21. Bc3 Be4 22. Rd1 Nd5 23. Ne2 g6 24. Rd2 f5 25. Kf2 c5 26. Be5 Ke6 27. Re1 Nf6 28. Rd6+ Ke7 29. Rxf6 Rd8 30. Rxb6 Rd3 31. Nc3 Rf3+ 32. Kg1 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "8"]
[White "Novikov, Evgenij"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2276"]
[BlackElo "2228"]
[PlyCount "88"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 Be7 5. d4 0-0 6. 0-0 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Rd1 Be4 11. Qd2 c5 12. Nc3 Bb7 13. Qc2 Qc7 14. dxc5 Bxc5 15. Bf4 Qb6 16. e3 Nc6 17. Rac1 Rac8 18. Na4 bxa4 19. Qxc5 Qxc5 20. Rxc5 Nb4 21. Rxc8 Rxc8 22. a3 Nbd5 23. Be5 Nd7 24. Bd4 Rc2 25. Ne1 Rc8 26. Nd3 Ba8 27. Rc1 Rb8 28. Bxd5 Bxd5 29. Nb4 Bb3 30. Rc7 Nf8 31. Nxa6 Rd8 32. Nc5 e5 33. Bxe5 Rd1+ 34. Kg2 Bd5+ 35. Kh3 Bf3 36. g4 h5 37. gxh5 Rg1 38. Bg3 g6 39. hxg6 Nxg6 40. Nd3 Be4 41. Rc5 Bxd3 42. Rg5 f6 43. Rc5 Kf7 44. f3 Be2 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Aung, Thant Zin"]
[Result "1-0"]
[ECO "B62"]
[WhiteElo "2228"]
[BlackElo "2268"]
[PlyCount "31"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd3 a6 8. 0-0-0 Qc7 9. Nxc6 bxc6 10. Qg3 Be7 11. Bc4 Rb8 12. Bb3 e5 13. Rd3 h6 14. Bxf6 Bxf6 15. Rhd1 c5 16. Rxd6 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Cori Tello, Deysi Estella"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2228"]
[BlackElo "2362"]
[PlyCount "76"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 d6 2. d4 g6 3. Nc3 Bg7 4. Bg5 c6 5. Qd2 b5 6. Nf3 Bg4 7. Be2 Qb6 8. Be3 b4 9. Na4 Qa5 10. b3 Nf6 11. Qd3 Nbd7 12. h3 Bxf3 13. Bxf3 0-0 14. 0-0 Nb6 15. a3 bxa3 16. Rxa3 Nfd7 17. Rfa1 Nxa4 18. Rxa4 Qc7 19. c3 Rfb8 20. b4 e5 21. Qd2 exd4 22. cxd4 Nb6 23. Ra6 Nc4 24. Qc3 Nxe3 25. Rxc6 Qe7 26. fxe3 Bh6 27. Kh1 Qh4 28. Rxd6 Rc8 29. Rc6 Rd8 30. e5 Qg3 31. Rc7 Rab8 32. Raxa7 Rf8 33. d5 Qf2 34. Qc2 Qe1+ 35. Kh2 Bxe3 36. Rc4 Bg1+ 37. Kh1 Bf2+ 38. Kh2 Qg1# 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Kucuksari, Kaan"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2228"]
[BlackElo "2500"]
[PlyCount "36"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. 0-0 d6 7. h3 a6 8. a4 h6 9. Re1 Ba7 10. Nbd2 Ne7 11. Nf1 Ng6 12. Ng3 c6 13. Bb3 Re8 14. Nh2 d5 15. Qf3 Be6 16. Bc2 Qd7 17. Bxh6 Nh4 18. Qe3 Bxe3 0-1

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "6"]
[White "Pniaczek, Marek"]
[Black "Sailer, Mike L"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2228"]
[BlackElo "2109"]
[PlyCount "61"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. Nf3 Nf6 5. d4 c6 6. Bc4 Bg4 7. Be3 e6 8. h3 Bh5 9. g4 Bg6 10. Qe2 Nbd7 11. 0-0-0 0-0-0 12. Kb1 Kb8 13. Ne5 Ka8 14. f4 Ne4 15. Nxe4 Bxe4 16. Rhe1 Nxe5 17. dxe5 Qc7 18. Rxd8+ Qxd8 19. Bxa7 Bxc2+ 20. Qxc2 Kxa7 21. Rd1 Qa5 22. Rd7 Qe1+ 23. Qc1 Qe4+ 24. Ka1 Bc5 25. Bd3 Qb4 26. Rxf7 Rd8 27. a3 Qd4 28. Be4 Bxa3 29. Rxb7+ Kxb7 30. Qxc6+ Ka7 31. Qb7# 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "7"]
[White "Shevtchenko, Olesya"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "2054"]
[BlackElo "2228"]
[PlyCount "57"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Nxe4 4. Qh5 Nd6 5. Bb3 Be7 6. Nf3 Nc6 7. Nxe5 Nxe5 8. Qxe5 0-0 9. 0-0 Bf6 10. Qf4 Bg5 11. Qf3 c6 12. d4 Bxc1 13. Raxc1 Qg5 14. Rce1 Nf5 15. Ne4 Qg6 16. d5 Nd4 17. Qg3 Nxb3 18. axb3 cxd5 19. Nd6 b6 20. Re7 Qxc2 21. Qf3 Ba6 22. Ra1 Qxb2 23. Rae1 Qf6 24. Qxd5 Rab8 25. Ne8 Qc6 26. Qe5 f6 27. Qxb8 Kh8 28. Qg3 Qc5 29. Qxg7# 1-0

[Event "Titled Tuesday intern op 11th Apr Early"]
[Site "Chess.com INT"]
[Date "2023.04.11"]
[Round "4"]
[White "Sowinski, Pawel"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2313"]
[BlackElo "2228"]
[PlyCount "33"]
[EventDate "2023.04.11"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. d4 dxc4 7. a4 c6 8. Ne5 Nbd7 9. Nxc4 c5 10. Nc3 cxd4 11. Qxd4 Bc5 12. Qd3 Qe7 13. Bf4 e5 14. Bg5 Nb6 15. Nxb6 axb6 16. Nd5 Qe6 17. Nc7 1-0

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "3"]
[White "Antonica, Dragos Andrei"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2373"]
[BlackElo "2232"]
[PlyCount "102"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 g6 4. Bxf6 exf6 5. e3 f5 6. g3 Bg7 7. Bg2 c6 8. Nge2 0-0 9. 0-0 Re8 10. Nf4 Nd7 11. Nce2 Nf6 12. c4 dxc4 13. Qc2 Ne4 14. Rfd1 b5 15. Nc3 Nxc3 16. bxc3 Qc7 17. a4 Bb7 18. h4 a6 19. h5 Rad8 20. hxg6 hxg6 21. Bf3 Bh6 22. Ne2 Kg7 23. Kg2 Bg5 24. Qa2 c5 25. d5 Bf6 26. axb5 axb5 27. Qa5 Qxa5 28. Rxa5 b4 29. Rxc5 bxc3 30. Rc1 g5 31. Kg1 Rc8 32. Rb5 Ba6 33. Rb6 Ra8 34. d6 Ra7 35. Nxc3 Bd8 36. Rb2 Bf6 37. Ra2 g4 38. Bc6 Rb8 39. d7 Bxc3 40. Rxc3 Rb1+ 41. Kg2 Bb7 42. Bxb7 Rxa2 43. d8Q Raa1 44. Qg5+ Kf8 45. Qh6+ Kg8 46. Qg5+ Kf8 47. Qd8+ Kg7 48. Qd4+ Kg8 49. f4 Rb2+ 50. Rc2 Rxc2+ 51. Qd2 Rxd2# 0-1

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "2"]
[White "Manukyan, Sargis A"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "D24"]
[WhiteElo "2163"]
[BlackElo "2232"]
[PlyCount "154"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 dxc4 5. e4 b5 6. e5 Nfd7 7. Nxb5 Nb6 8. Nc3 Nc6 9. Be3 Be7 10. Be2 Rb8 11. 0-0 0-0 12. Nd2 Nxd4 13. Bxc4 Nxc4 14. Nxc4 c5 15. b3 Bb7 16. Qg4 Qc7 17. Bxd4 cxd4 18. Nb5 Qc5 19. Nxd4 Rfd8 20. Rfd1 Rbc8 21. h4 a5 22. h5 h6 23. Rac1 Bg5 24. Rb1 Ba6 25. Nd6 Rc7 26. Nxe6 fxe6 27. Qxe6+ Kh7 28. Ne8 Rxd1+ 29. Rxd1 Re7 30. Qxa6 Qc2 31. Qg6+ Qxg6 32. hxg6+ Kxg6 33. Nd6 Rxe5 34. Nc4 Re2 35. a4 Be7 36. Kf1 Rc2 37. Rd2 Rc1+ 38. Ke2 Bb4 39. Rd5 Rc2+ 40. Ke3 Rc3+ 41. Rd3 Rc2 42. Ne5+ Kf5 43. Nf3 Bc5+ 44. Nd4+ Ke5 45. f4+ Kd5 46. g4 Rb2 47. f5 Ra2 48. Rd1 Rb2 49. Rd3 Rb1 50. Rd2 Rxb3+ 51. Rd3 Bxd4+ 52. Ke2 Rxd3 53. Kxd3 Bf6 54. Ke2 Kc4 55. Kf3 Kb4 56. Ke4 Kxa4 57. Kd3 Kb4 58. Ke4 a4 59. Kd3 a3 60. Kc2 a2 61. Kd3 a1Q 62. Ke4 Qd4+ 63. Kf3 Qd3+ 64. Kf4 Bg5+ 65. Ke5 Qe3+ 66. Kd5 Qf3+ 67. Ke6 Qxg4 68. Kf7 Qxf5+ 69. Kg8 Qf8+ 70. Kh7 h5 71. Kg6 h4 72. Kh5 h3 73. Kg6 h2 74. Kh5 g6+ 75. Kxg6 Qf6+ 76. Kh7 h1Q+ 77. Kg8 Qhh8# 0-1

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Gabrielian, Artur"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2232"]
[BlackElo "2452"]
[PlyCount "86"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 e6 9. 0-0-0 Be7 10. Bxf6 Bxf6 11. Qxd6 Qxd6 12. Rxd6 Bxc3 13. bxc3 Bxe4 14. Ne5 Rc8 15. Rd4 Bg6 16. Kb2 f6 17. Nxg6 hxg6 18. Re1 Ke7 19. h4 Rh5 20. Red1 Rc7 21. c4 Rhc5 22. Kb3 e5 23. Rg4 Kf7 24. a4 f5 25. Rg3 Rxc4 26. Rd6 Rxc2 27. Rdxg6 R7c3+ 28. Rxc3 Rxc3+ 29. Kxc3 Kxg6 30. Kc4 Kh5 31. Kd5 e4 32. Ke5 g6 33. g3 b6 34. Kf4 a6 35. f3 e3 36. Kxe3 b5 37. axb5 axb5 38. Kd4 f4 39. gxf4 Kxh4 40. Kc5 Kg3 41. f5 gxf5 42. Kxb5 Kxf3 43. Kc4 Ke3 0-1

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "1"]
[White "Pniaczek, Marek"]
[Black "Samunenkov, Igor"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2232"]
[BlackElo "2488"]
[PlyCount "70"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Nd7 7. Bc4 Nf6 8. Qe2 Bf5 9. d3 e6 10. 0-0 Be7 11. h3 h6 12. a4 a5 13. Bf4 0-0 14. Rfe1 Nd5 15. Bg3 Bd6 16. Bxd6 Qxd6 17. Ne5 f6 18. Ng4 e5 19. Qf3 Qd7 20. Qg3 Kh8 21. Bb3 Nf4 22. Ne3 Be6 23. Bxe6 Nxe6 24. Nc4 Qc7 25. Qg4 Nd4 26. Rac1 Rad8 27. Ne3 f5 28. Qg6 f4 29. Ng4 f3 30. Rcd1 Ne2+ 31. Kf1 e4 32. Qxe4 Rde8 33. Qg6 fxg2+ 34. Kxg2 Nf4+ 35. Kg3 Nxg6+ 0-1

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "4"]
[White "Pniaczek, Marek"]
[Black "Zhao, Jun"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2232"]
[BlackElo "2591"]
[PlyCount "63"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Bxc3+ 6. bxc3 Qe7 7. f3 Nxe5 8. dxe5 Qxe5 9. Qd4 d6 10. a4 a5 11. Ba3 Bd7 12. Bb2 Bc6 13. c4 Nd7 14. Be2 0-0 15. 0-0 Rfe8 16. Rfd1 Qxd4+ 17. Bxd4 f5 18. c5 dxc5 19. Bc3 fxe4 20. fxe4 Nb6 21. Ra3 Nxa4 22. Ba1 Rad8 23. Rf1 Rxe4 24. Rg3 g6 25. Bd3 Re6 26. h4 Nb6 27. h5 Be8 28. Rgf3 Bc6 29. Rf7 Rd4 30. h6 Re8 31. Rg7+ Kh8 32. Rff7 1-0

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "7"]
[White "Sahakyan, Aleks"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2343"]
[BlackElo "2232"]
[PlyCount "85"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nc3 Nf6 2. d3 e5 3. Nf3 Nc6 4. g3 d5 5. Bg2 d4 6. Nb1 h5 7. Bg5 Be7 8. Nbd2 Be6 9. h4 Ng4 10. Bxe7 Qxe7 11. Ng5 0-0-0 12. Nxe6 Qxe6 13. c3 f5 14. Qb3 Qxb3 15. axb3 Rh6 16. b4 e4 17. dxe4 dxc3 18. bxc3 Nxf2 19. Kxf2 Rxd2 20. exf5 Ne5 21. Rxa7 Ng4+ 22. Kf3 Rf6 23. Kf4 Rxe2 24. Bxb7+ Kd8 25. Rd1+ Ke7 26. Bf3 Rf2 27. Rxc7+ Ke8 28. Rc8+ Ke7 29. Rc7+ Ke8 30. Rd3 g6 31. Rc5 Ke7 32. Kg5 Rxf5+ 33. Rxf5 gxf5 34. Bxg4 hxg4 35. Rd5 Ke6 36. Rd4 Rf3 37. Rf4 Rxg3 38. Rxf5 Rxc3 39. Kxg4 Rc1 40. Rf4 Rg1+ 41. Kf3 Ke5 42. Rg4 Kf5 43. Rxg1 1-0

[Event "Titled Tuesday intern op 28th Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.28"]
[Round "6"]
[White "Tregubov, Pavel V"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2556"]
[BlackElo "2232"]
[PlyCount "41"]
[EventDate "2023.03.28"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. 0-0 b5 7. Bb3 Be7 8. e5 Ne4 9. Bd5 Nc5 10. Nxd4 Bb7 11. Nf5 0-0 12. Qg4 g6 13. Re1 Ne6 14. Bh6 Re8 15. Nc3 Kh8 16. Nxe7 Qxe7 17. Bf3 Qb4 18. Qxb4 Nxb4 19. Bxb7 Rab8 20. Be4 Nc5 21. Rad1 1-0

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "8"]
[White "Akkarakaran, John Veny"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2110"]
[BlackElo "2232"]
[PlyCount "98"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. d4 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Qc2 c6 8. Qxc4 b5 9. Qc2 Bb7 10. Rd1 Nbd7 11. Nc3 Qb6 12. Ne5 Nxe5 13. dxe5 Nd5 14. Ne4 c5 15. Bg5 Nb4 16. Qc1 Bxg5 17. Qxg5 Bxe4 18. Bxe4 Rad8 19. a3 Nd5 20. Rd2 h6 21. Qh4 Rd7 22. Rad1 Rfd8 23. e3 c4 24. Bxd5 exd5 25. Qd4 Kf8 26. Qxb6 axb6 27. Rd4 Ke7 28. f4 Ke6 29. Kf2 f5 30. exf6 gxf6 31. g4 h5 32. h3 hxg4 33. hxg4 Rh8 34. Kg2 Ra8 35. e4 Rad8 36. exd5+ Kd6 37. f5 Kc5 38. Re4 Rxd5 39. Rde1 Rd2+ 40. R1e2 b4 41. Kf3 bxa3 42. bxa3 c3 43. R2e3 R8d3 44. Rxd3 Rxd3+ 45. Ke2 c2 46. Re8 Rc3 47. Rc8+ Kd4 48. Rd8+ Ke5 49. Re8+ Kf4 0-1

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "4"]
[White "Ben Artzi, Ido"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "E49"]
[WhiteElo "2316"]
[BlackElo "2232"]
[PlyCount "48"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c6 7. Bd3 0-0 8. Ne2 b6 9. 0-0 Ba6 10. cxd5 cxd5 11. f3 Bxd3 12. Qxd3 Nc6 13. e4 Na5 14. e5 Nd7 15. f4 f5 16. exf6 Nxf6 17. Ng3 Nc4 18. Ra2 Qd7 19. Re2 Rae8 20. Rfe1 Nd6 21. a4 Nde4 22. Ba3 Rf7 23. Nxe4 Nxe4 24. Qb5 Nxc3 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "5"]
[White "Dinu, Dumitru Daniel"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2203"]
[BlackElo "2232"]
[PlyCount "86"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. 0-0 d6 8. c3 0-0 9. Re1 Bb6 10. Nbd2 Bb7 11. Nf1 Ne7 12. Be3 Bxe3 13. Nxe3 Ng6 14. Nf5 c5 15. Ng5 h6 16. Nh3 d5 17. exd5 Nxd5 18. Qh5 Ndf4 19. Nxf4 Nxf4 20. Qg4 Qf6 21. Re3 h5 22. Ne7+ Kh8 23. Qg3 Nxg2 24. Rxe5 Nf4 25. Rae1 g6 26. Rxc5 Rfe8 27. Rce5 Rad8 28. Nxg6+ fxg6 29. Rxe8+ Rxe8 30. Rxe8+ Kg7 31. d4 Bc6 32. Re1 Ng2 33. Rf1 Nh4 34. f3 Nxf3+ 35. Rxf3 Bxf3 36. Qc7+ Kh6 37. Bc2 Qg5+ 38. Kf2 Qg2+ 39. Ke3 Qe2+ 40. Kf4 g5+ 41. Kf5 Qxc2+ 42. Kf6 Qg6+ 43. Ke5 Qg7+ 0-1

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "6"]
[White "Jessel, Stephen"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2285"]
[BlackElo "2232"]
[PlyCount "86"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 d5 3. e3 Bf5 4. c4 c6 5. Nf3 h6 6. g3 e6 7. d3 Be7 8. Nc3 0-0 9. Bg2 Na6 10. 0-0 dxc4 11. dxc4 Bd3 12. Ne2 Nc5 13. Ne5 Bh7 14. Nf4 Be4 15. Bh3 Qc7 16. Ng4 Rad8 17. Qe2 Nxg4 18. Qxg4 e5 19. Nh5 Bg6 20. f4 Nd3 21. Bc3 Bxh5 22. Qxh5 exf4 23. exf4 Bc5+ 24. Kh1 Nf2+ 25. Kg2 Ne4 26. Be1 Bd4 27. Rd1 Bc3 28. Bf5 Nf6 29. Qf3 Rxd1 30. Qxd1 Rd8 31. Qf3 Bxe1 32. Rxe1 Rd2+ 33. Re2 Qd6 34. Rxd2 Qxd2+ 35. Qf2 Qa5 36. a4 Qxf5 37. Qxa7 Qe4+ 38. Kg1 Ng4 39. Qb8+ Kh7 40. Kf1 Qf3+ 41. Ke1 Qf2+ 42. Kd1 Ne3+ 43. Kc1 Qc2# 0-1

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Al Hosani, Omran"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2232"]
[BlackElo "2270"]
[PlyCount "53"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Nf5 0-0 7. Be3 Bxe3 8. Nxe3 d6 9. Bd3 Re8 10. 0-0 Ne5 11. f4 Neg4 12. Nxg4 Bxg4 13. Qd2 c6 14. Rae1 Qb6+ 15. Kh1 Qxb2 16. e5 dxe5 17. fxe5 Nd5 18. Ne4 Rxe5 19. Ng5 Rxe1 20. Bxh7+ Kh8 21. Qxe1 Bh5 22. Qh4 Nf6 23. Bd3 Kg8 24. h3 Re8 25. Bh7+ Kf8 26. Qxh5 Qxa2 27. Qh4 1-0

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Arencibia Monduy, Antonio"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2232"]
[BlackElo "2122"]
[PlyCount "63"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 e6 8. Bg5 Qc7 9. 0-0-0 h6 10. Bh4 e5 11. Nd5 Bxd5 12. Qxd5 Rc8 13. Rd2 g5 14. Bg3 Nf6 15. Qd3 Be7 16. Kb1 Qc6 17. Re1 Qc4 18. Qe3 b6 19. h4 g4 20. Ng1 h5 21. f4 Nd7 22. fxe5 dxe5 23. Ne2 Bb4 24. c3 Be7 25. Red1 Rc7 26. Nd4 exd4 27. Rxd4 Qc6 28. Bxc7 Qxc7 29. Rxd7 Qxd7 30. Rxd7 Bc5 31. Qd3 0-0 32. Qd5 1-0

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "6"]
[White "Pniaczek, Marek"]
[Black "Kopczynski, Michal"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2232"]
[BlackElo "2225"]
[PlyCount "143"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 b6 2. d4 Bb7 3. Bd3 e6 4. Qe2 Nf6 5. Nf3 d5 6. e5 Nfd7 7. Ng5 g6 8. Qf3 Qe7 9. Na3 a6 10. c3 c5 11. Bd2 Nc6 12. Nc2 h6 13. Nh3 0-0-0 14. b4 c4 15. Be2 f6 16. exf6 Nxf6 17. Nf4 Rg8 18. Qh3 Kb8 19. Qxe6 Qg7 20. Qh3 Bc8 21. Ne6 Bxe6 22. Qxe6 Bd6 23. Ne3 Rge8 24. Qh3 Ne4 25. Rd1 Ng5 26. Qh4 Re4 27. g4 Qe7 28. Kf1 Bf4 29. Ng2 Bxd2 30. Rxd2 h5 31. Ne3 Rxe3 32. fxe3 Qxe3 33. Qg3+ Qxg3 34. hxg3 Ne4 35. Rd1 Nxg3+ 36. Kf2 Nxh1+ 37. Rxh1 Rf8+ 38. Ke3 Re8+ 39. Kd2 hxg4 40. Bxg4 Ne7 41. Re1 Kc7 42. Be6 Kd6 43. Bf7 Rf8 44. Re6+ Kd7 45. Rf6 a5 46. bxa5 bxa5 47. Rf3 g5 48. Bxd5 Rxf3 49. Bxf3 Nf5 50. Be2 Ke6 51. Bxc4+ Kf6 52. Bd3 Ng3 53. Ke3 g4 54. Kf4 Nh5+ 55. Kxg4 Ng7 56. c4 Ne6 57. d5 Nc5 58. Bc2 Ke5 59. Kf3 Kd4 60. Bb3 a4 61. d6 axb3 62. axb3 Kc3 63. Ke3 Kxb3 64. Kd4 Nd7 65. c5 Kb4 66. c6 Nb6 67. d7 Na4 68. d8Q Nc3 69. Qb6+ Nb5+ 70. Kd5 Ka4 71. Qxb5+ Kxb5 72. c7 1-0

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "2"]
[White "Pniaczek, Marek"]
[Black "Kosteniuk, Alexandra"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2232"]
[BlackElo "2536"]
[PlyCount "66"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. Bxf6 gxf6 9. Na3 b5 10. Nd5 f5 11. g3 f4 12. gxf4 exf4 13. Nxf4 Bg7 14. c3 Qh4 15. Qf3 Bh6 16. Nd5 Ne5 17. Qg2 Bg4 18. Be2 Bxe2 19. Kxe2 0-0-0 20. f3 Kb7 21. Rad1 f5 22. Qg1 Nd7 23. Qf2 Qxf2+ 24. Kxf2 fxe4 25. fxe4 Rhf8+ 26. Ke2 Rde8 27. Kd3 Nc5+ 28. Kc2 Rxe4 29. Rhe1 Rf2+ 30. Kb1 Rxe1 31. Rxe1 Rxb2+ 32. Kxb2 Nd3+ 33. Kb3 Nxe1 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "10"]
[White "Pniaczek, Marek"]
[Black "Larino Nieto, David"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2232"]
[BlackElo "2375"]
[PlyCount "58"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. d4 Nc6 6. d5 Nb4 7. Bc4 Bg4 8. 0-0 0-0-0 9. h3 Bh5 10. Bd2 Qc5 11. Bb3 Nbxd5 12. Nxd5 Nxd5 13. Qe2 e6 14. c4 Nb4 15. Be3 Qf5 16. g4 Bxg4 17. hxg4 Qxg4+ 18. Kh1 Bd6 19. Rfd1 g5 20. Ng1 Qf5 21. Qf3 Qg6 22. c5 g4 23. Qe2 Be5 24. c6 Nxc6 25. Rac1 Rdg8 26. Rxc6 Qe4+ 27. f3 gxf3 28. Qxf3 Rxg1+ 29. Kxg1 Qxf3 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Papasimakopoulos, Alexandros"]
[Result "0-1"]
[ECO "C06"]
[WhiteElo "2232"]
[BlackElo "2356"]
[PlyCount "76"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 f6 9. exf6 Nxf6 10. Nf3 Bd6 11. 0-0 Qc7 12. h3 0-0 13. Be3 Bd7 14. Rc1 Be8 15. Nc3 a6 16. Na4 Bh5 17. Be2 Ne4 18. Nd2 Bxe2 19. Qxe2 Nxd2 20. Qxd2 Rf6 21. Nc5 Raf8 22. Rc3 Kh8 23. Rfc1 e5 24. dxe5 Bxe5 25. Rb3 d4 26. Bg5 Rg6 27. Rxb7 Qc8 28. f4 h6 29. fxe5 Nxe5 30. Nd7 Nf3+ 31. gxf3 Qxb7 32. Nxf8 Rxg5+ 33. Kf2 Qb8 34. Qxd4 Qh2+ 35. Ke3 Re5+ 36. Kd3 Qe2+ 37. Kc3 Re3+ 38. Kb4 Qb5# 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "4"]
[White "Pniaczek, Marek"]
[Black "Rom, Jasper B"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2232"]
[BlackElo "2202"]
[PlyCount "30"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Bd3 c5 5. dxc5 Nf6 6. Qe2 0-0 7. Ngf3 a5 8. 0-0 Na6 9. Bb5 Nxc5 10. e5 Nfd7 11. Rd1 Qc7 12. c4 Nb6 13. cxd5 Nxd5 14. Nc4 b6 15. b3 Nc3 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "1"]
[White "Pniaczek, Marek"]
[Black "Sahakyan, Aleks"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2232"]
[BlackElo "2343"]
[PlyCount "87"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Qd5 7. Qh4 Bf5 8. Bc4 Qd6 9. d3 e6 10. 0-0 Be7 11. Bg5 Bxg5 12. Qxg5 0-0 13. Nh4 Bg6 14. Rae1 Nd7 15. Kh1 Qc5 16. Qg3 Rfe8 17. Bb3 a5 18. a4 Qd4 19. Nxg6 hxg6 20. c3 Qb6 21. Bc4 Qxb2 22. Rb1 Qxc3 23. Rxb7 Nf6 24. Qc7 Rf8 25. Bxe6 Qxd3 26. Bxf7+ Kh8 27. Kg1 Nh7 28. Qxc6 Ra6 29. Qc5 Rd6 30. Bc4 Qd2 31. Bb5 Nf6 32. Qc1 Ne4 33. Qxd2 Rxd2 34. Rb6 Nxf2 35. Rxg6 Rf4 36. Rg3 Nd3 37. Rgf3 Rxf3 38. Rxf3 Nb2 39. Rf2 Rd1+ 40. Rf1 Rd2 41. h3 Kh7 42. Rf2 Rd1+ 43. Rf1 Nd3 44. Rxd1 1-0

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "1"]
[White "Pniaczek, Marek"]
[Black "Sai, Krishna GV"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2232"]
[BlackElo "2385"]
[PlyCount "76"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. Qxd4 Nf6 5. Bb5+ Nc6 6. Bg5 Bd7 7. Bxc6 bxc6 8. e5 dxe5 9. Nxe5 Nd5 10. 0-0 f6 11. Nxd7 Qxd7 12. Bd2 e5 13. Qa4 Bc5 14. Nc3 Nb6 15. Qe4 0-0 16. Rad1 Bd4 17. Ne2 f5 18. Qd3 c5 19. Qh3 e4 20. Bc3 Qf7 21. Nxd4 cxd4 22. Rxd4 Qxa2 23. Qg3 Rf7 24. Rfd1 Raf8 25. Rd8 Nd7 26. Rxf8+ Nxf8 27. h3 f4 28. Qg4 e3 29. fxe3 fxe3 30. Rd8 Qb1+ 31. Kh2 Qxc2 32. Re8 Qg6 33. Rxf8+ Kxf8 34. Qc8+ Ke7 35. Qc7+ Ke6 36. Qc6+ Kf5 37. Qd5+ Kf4 38. Be5+ Kg5 0-1

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Tregubov, Pavel V"]
[Result "1/2-1/2"]
[ECO "B45"]
[WhiteElo "2232"]
[BlackElo "2556"]
[PlyCount "103"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[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. Nxc6 bxc6 7. e5 Nd5 8. Ne4 Qc7 9. f4 Qb6 10. c4 Bb4+ 11. Ke2 f5 12. exf6 Nxf6 13. Be3 Qd8 14. Nd6+ Bxd6 15. Qxd6 Bb7 16. Rg1 c5 17. g4 Ne4 18. Qe5 0-0 19. Bg2 d6 20. Qxe6+ Kh8 21. Bxe4 Re8 22. Qxe8+ Qxe8 23. Bxb7 Rb8 24. Bd5 Rxb2+ 25. Kf3 Rxh2 26. Rh1 Rc2 27. Rxh7+ Kxh7 28. Be4+ Kg8 29. Bxc2 Qe7 30. Be4 Qh4 31. Bd5+ Kf8 32. Bf2 Qh3+ 33. Bg3 Qh6 34. Rb1 Qf6 35. Rb8+ Ke7 36. Rb7+ Kd8 37. g5 Qc3+ 38. Kg4 g6 39. Rb3 Qc2 40. Rb8+ Kc7 41. Rb7+ Kc8 42. Rf7 Qe2+ 43. Bf3 Qxc4 44. Rf6 Qd3 45. Be1 c4 46. Ba5 c3 47. Rf7 c2 48. Rc7+ Kb8 49. Rb7+ Kc8 50. Rc7+ Kb8 51. Rb7+ Kc8 52. Rc7+ 1/2-1/2

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "8"]
[White "Pniaczek, Marek"]
[Black "Van Foreest, Lucas"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "2232"]
[BlackElo "2570"]
[PlyCount "28"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 b5 2. Bxb5 Bb7 3. Nc3 f5 4. exf5 Bxg2 5. Qh5+ g6 6. fxg6 Bg7 7. gxh7+ Kf8 8. hxg8Q+ Kxg8 9. Qg4 Bxh1 10. Nf3 e6 11. Be2 Nc6 12. d3 Bxf3 13. Bxf3 Nd4 14. Bg5 Qxg5 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "3"]
[White "Safin, Robert"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2207"]
[BlackElo "2232"]
[PlyCount "73"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Qe2 Qf6 7. Nc3 Nge7 8. Be3 d6 9. 0-0-0 Bd7 10. g3 0-0-0 11. f4 Bxe3+ 12. Qxe3 Kb8 13. Kb1 h5 14. h3 Rhe8 15. Be2 h4 16. g4 g6 17. Rhf1 Qh8 18. a3 f5 19. Qf3 Rf8 20. g5 fxe4 21. Nxe4 Nf5 22. Nf6 Ng3 23. Rfe1 Bxh3 24. Bb5 Rxf6 25. gxf6 Bd7 26. f7 Qf6 27. Na5 Qxf7 28. Bxc6 bxc6 29. Nxc6+ Bxc6 30. Qxc6 Qd7 31. Qf3 Nf5 32. Rd3 c6 33. Rb3+ Ka8 34. Rc3 d5 35. Qg4 Rb8 36. Rd3 Ne7 37. Qxd7 1-0

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "7"]
[White "Sherman, Reem"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2126"]
[BlackElo "2232"]
[PlyCount "152"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 d5 3. Nf3 Bf5 4. 0-0 h6 5. d3 c6 6. Re1 e6 7. b3 Nbd7 8. Bb2 Be7 9. Nbd2 0-0 10. e4 Bh7 11. Qe2 Qc7 12. h3 a5 13. a4 Rfe8 14. Nh2 Bf8 15. f4 e5 16. f5 Rad8 17. g4 dxe4 18. dxe4 Nc5 19. h4 h5 20. g5 Ng4 21. Nxg4 hxg4 22. Nc4 b5 23. Ne3 g3 24. Qg4 g6 25. h5 Rd2 26. Bc3 Rd7 27. Qxg3 bxa4 28. bxa4 Na6 29. Nc4 gxf5 30. g6 fxg6 31. hxg6 Bc5+ 32. Kh1 Rg7 33. gxh7+ Kh8 34. Bxe5 Rxe5 35. Qxe5 Qxe5 36. Nxe5 Rxh7+ 37. Bh3 Rxh3+ 38. Kg2 Rc3 39. exf5 Rxc2+ 40. Kf3 Bd4 41. Ke4 Bxa1 42. Rxa1 Nc5+ 43. Kf4 Rf2+ 44. Kg5 Ne4+ 45. Kg6 Rg2+ 46. Kf7 Nd6+ 47. Ke6 Ne4 48. Rh1+ Kg7 49. Nxc6 Ng5+ 50. Ke5 Re2+ 51. Kf4 Nf7 52. Nd4 Ra2 53. Ne6+ Kf6 54. Re1 Rxa4+ 55. Re4 Rxe4+ 56. Kxe4 Ng5+ 57. Nxg5 Kxg5 58. Ke5 a4 59. f6 a3 60. f7 a2 61. f8Q a1Q+ 62. Kd5 Qd1+ 63. Ke4 Qe2+ 64. Kd4 Qd2+ 65. Kc4 Qc2+ 66. Kb5 Qb3+ 67. Kc6 Qc4+ 68. Kb6 Qd4+ 69. Ka6 Qc4+ 70. Kb6 Qd4+ 71. Ka5 Qd5+ 72. Ka4 Qd4+ 73. Kb3 Qd3+ 74. Kb4 Qd4+ 75. Kb5 Qd5+ 76. Kb6 Qd4+ 1/2-1/2

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "11"]
[White "Sielecki, Christof"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2422"]
[BlackElo "2232"]
[PlyCount "141"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. Nc3 d6 8. Nd5 h6 9. c3 Bb7 10. Nxf6+ Qxf6 11. Bd5 Rb8 12. 0-0 0-0 13. Be3 Ne7 14. Bxb7 Rxb7 15. d4 Bb6 16. a4 Rbb8 17. a5 exd4 18. cxd4 Ba7 19. Rc1 c6 20. b4 d5 21. e5 Qe6 22. Nd2 Nf5 23. Nb3 f6 24. Bf4 g5 25. Bg3 Nxg3 26. hxg3 fxe5 27. Nc5 Bxc5 28. Rxc5 e4 29. Qc1 Rbc8 30. Qe3 Rf6 31. Rfc1 Qf5 32. R1c2 Qd7 33. Rc1 Kg7 34. R1c2 Kg6 35. Rc1 h5 36. f4 exf3 37. gxf3 Qh3 38. Qf2 Qf5 39. R5c3 Kh7 40. Re3 Rcf8 41. Rf1 Re6 42. Rxe6 Qxe6 43. Re1 Qf6 44. Kg2 Rf7 45. Re5 Re7 46. Qe3 Rxe5 47. dxe5 Qe7 48. Qd3+ Kg7 49. Qf5 d4 50. f4 gxf4 51. gxf4 Kh6 52. Kf3 Qxb4 53. Qg5+ Kh7 54. Qxh5+ Kg7 55. Qg5+ Kh7 56. Qh5+ Kg7 57. Qg4+ Kh7 58. Qd7+ Kh8 59. Qe8+ Kh7 60. Qf7+ Kh6 61. e6 Qc3+ 62. Kg4 Qe1 63. Qh5+ Kg7 64. Qg5+ Kf8 65. Qf6+ Kg8 66. Qf7+ Kh8 67. e7 Qg1+ 68. Kf5 Qb1+ 69. Ke5 Qe1+ 70. Kd6 Qb4+ 71. Kd7 1-0

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "7"]
[White "Simonian, Hrair"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "C80"]
[WhiteElo "2431"]
[BlackElo "2232"]
[PlyCount "82"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. Re1 Nd6 7. Nxe5 Be7 8. Qe2 Nd4 9. Qg4 N4f5 10. c4 0-0 11. c5 Nh6 12. Qf3 Ndf5 13. d3 Bxc5 14. Nc3 d6 15. Nc4 Nd4 16. Qh5 b5 17. Bxh6 gxh6 18. Nd5 Qg5 19. Ne7+ Kh8 20. Qd1 Bb7 21. Ne3 Nf3+ 22. Kh1 Nxe1 23. Qxe1 Bxe3 24. Qc3+ Qe5 25. Qxc7 bxa4 26. Qxb7 Bxf2 27. Nc6 Qg7 28. Rf1 Bc5 29. Ne7 Rfe8 30. Nf5 Qf6 31. Qf3 Rg8 32. h3 Qxb2 33. Nxh6 Rg7 34. Qh5 Rf8 35. Qf3 Qe5 36. Nf5 Qf6 37. Qe2 Qg6 38. Rf3 Rfg8 39. Nxg7 Qxg7 40. Qe4 Qa1+ 41. Kh2 Qg1# 0-1

[Event "Titled Tuesday intern op 21st Mar Early"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "11"]
[White "Soto Hernandez, Henry"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "A08"]
[WhiteElo "2490"]
[BlackElo "2232"]
[PlyCount "48"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 Nc6 3. Bg2 e5 4. 0-0 d5 5. d3 Be7 6. c4 Be6 7. cxd5 Bxd5 8. Nc3 Be6 9. Be3 Nf6 10. Ng5 Bd7 11. Nge4 b6 12. Nxf6+ Bxf6 13. Nd5 0-0 14. a3 Rc8 15. b4 Nd4 16. bxc5 Rxc5 17. Bxd4 exd4 18. a4 Bc6 19. Nxf6+ Qxf6 20. Bxc6 Qxc6 21. Re1 Re8 22. Qb3 Rc2 23. Ra2 Rexe2 24. Qxc2 Rxe1# 0-1

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "10"]
[White "Tanenbaum, Zachary Chen"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2261"]
[BlackElo "2232"]
[PlyCount "67"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. b4 Bb6 7. e5 Ne4 8. Bd5 Nxc3 9. Nxc3 dxc3 10. Bg5 Ne7 11. 0-0 h6 12. Bh4 a5 13. Qb3 0-0 14. Be4 Qe8 15. Qxc3 axb4 16. Qxb4 Nc6 17. Qd2 Nxe5 18. Rae1 Ba5 19. Qc1 Bxe1 20. Rxe1 d6 21. Nd4 Qa4 22. Qc3 Qa3 23. Qxc7 Qxa2 24. Qxd6 Nc4 25. Bh7+ Kxh7 26. Qxf8 Be6 27. Qb4 Ra4 28. Qxb7 Qd2 29. Qe4+ Kh8 30. Nxe6 fxe6 31. Qxe6 Nd6 32. Bg3 Ne4 33. Rf1 Qe2 34. Qe8+ 1-0

[Event "Titled Tuesday intern op 21st Mar Late"]
[Site "Chess.com INT"]
[Date "2023.03.21"]
[Round "3"]
[White "Turayev, Shahruh"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "2207"]
[BlackElo "2232"]
[PlyCount "43"]
[EventDate "2023.03.21"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qg5 9. d4 Qg4 10. dxe5 Qb4+ 11. Nc3 Ne7 12. Qd1 Ne4 13. Bd2 Nxd2 14. Qxd2 Bg7 15. Nf3 d6 16. exd6 Qxd6 17. Qxd6 cxd6 18. 0-0-0 Bd7 19. Rhe1 Bf6 20. Nd5 Rf8 21. Nc7+ Kd8 22. Nxa8 1-0

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.11"]
[Round "9"]
[White "Pniaczek, Marek"]
[Black "Adamczewski, Jedrzej"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2232"]
[BlackElo "1938"]
[PlyCount "79"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. c4 Nc6 6. Qe3 Nf6 7. h3 g6 8. Nc3 Bg7 9. Be2 0-0 10. 0-0 Nd7 11. Rd1 Qb6 12. Qd2 Nde5 13. Nxe5 dxe5 14. Nd5 Qd8 15. c5 Be6 16. b3 Rc8 17. Ba3 Nd4 18. Bc4 Rc6 19. Rac1 Bxh3 20. Qe3 Be6 21. b4 Rc8 22. Bb2 a5 23. f4 exf4 24. Nxf4 Bxc4 25. Bxd4 Bxa2 26. Bxg7 Qxd1+ 27. Rxd1 Kxg7 28. Qd2 e5 29. Qxa2 exf4 30. Qxa5 Rfe8 31. Qa1+ Kg8 32. e5 Re6 33. Rd6 Rce8 34. Rxe6 Rxe6 35. Qd4 Kg7 36. b5 g5 37. Qd5 h5 38. c6 bxc6 39. bxc6 g4 40. c7 1-0

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.11"]
[Round "7"]
[White "Pniaczek, Marek"]
[Black "Jarzebowski, Kacper"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2232"]
[BlackElo "2145"]
[PlyCount "112"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. Be2 e6 5. d4 dxe4 6. Nxe4 Nd7 7. h3 Bxf3 8. Bxf3 Ngf6 9. 0-0 Be7 10. Re1 0-0 11. c3 Qc7 12. Nxf6+ Nxf6 13. Qb3 Rfd8 14. a4 h6 15. a5 Bf8 16. a6 b6 17. Qc4 Rac8 18. b4 Nd5 19. Bd2 Qd7 20. Qb3 Qd6 21. Rab1 c5 22. dxc5 bxc5 23. b5 c4 24. Qc2 Qb6 25. Bxd5 Rxd5 26. Be3 Bc5 27. Bxc5 Rcxc5 28. Rb4 g6 29. Re4 Rxb5 30. Rexc4 Qxa6 31. Rxb5 Rxb5 32. Rc7 Qb6 33. Rc8+ Kg7 34. c4 Rb1+ 35. Kh2 Qb2 36. Qxb2+ Rxb2 37. Kg3 Rc2 38. Ra8 Rxc4 39. Rxa7 h5 40. h4 Kf6 41. f3 e5 42. Ra6+ Kf5 43. Ra5 f6 44. Rb5 Ra4 45. Rc5 g5 46. hxg5 Kxg5 47. Rc8 e4 48. Rg8+ Kf5 49. fxe4+ Rxe4 50. Rh8 Rg4+ 51. Kf3 Rf4+ 52. Kg3 Rg4+ 53. Kf3 Rg5 54. Rxh5 Rxh5 55. g4+ Kg5 56. gxh5 Kxh5 1/2-1/2

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.11"]
[Round "8"]
[White "Powalka, Michal"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "B46"]
[WhiteElo "1960"]
[BlackElo "2232"]
[PlyCount "184"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. f4 Nxd4 7. Qxd4 b5 8. Bd3 Bb7 9. 0-0 Rc8 10. Kh1 Nf6 11. b4 d6 12. Bd2 Be7 13. a4 bxa4 14. Rxa4 d5 15. e5 Ne4 16. Be1 0-0 17. Bxa6 Bxa6 18. Rxa6 Rc4 19. Qd3 Nxc3 20. Bxc3 Qc8 21. Ra3 Bxb4 22. Bxb4 Rxb4 23. f5 Rc4 24. f6 Rg4 25. Qe2 Rg6 26. fxg7 Rxg7 27. Raf3 Qc7 28. c3 Rc8 29. Qf2 Qe7 30. Rg3 Rc4 31. Rxg7+ Kxg7 32. Qg3+ Kh8 33. Ra1 Rc8 34. h3 Rg8 35. Qf3 h6 36. Kh2 Qg5 37. Re1 Rg7 38. Re2 Qg6 39. Rf2 Qg5 40. Qf4 Kg8 41. Qf3 Qxe5+ 42. Kh1 Qe1+ 43. Rf1 Qg3 44. Rf2 Qxf3 45. Rxf3 Rg5 46. Kg1 Re5 47. Kf2 Kf8 48. Rf6 Rh5 49. Kg3 Ke7 50. Rf4 Re5 51. Rh4 Re3+ 52. Kf2 Rxc3 53. Rxh6 e5 54. Ra6 f6 55. h4 Rc4 56. g3 Rc2+ 57. Kf3 Rc3+ 58. Kf2 d4 59. h5 f5 60. h6 Kf7 61. h7 Kg7 62. Ra7+ Kh8 63. Rf7 e4 64. Rxf5 Kxh7 65. Rd5 Rf3+ 66. Ke2 Re3+ 67. Kf2 Rd3 68. Rd6 Rd2+ 69. Ke1 e3 70. g4 d3 71. Re6 Re2+ 72. Kd1 Kg7 73. Rd6 Rd2+ 74. Ke1 Kf7 75. g5 Ke7 76. Rd4 Ke6 77. g6 Kf6 78. Rd6+ Kg7 79. Re6 Re2+ 80. Kd1 Kh6 81. Rd6 Rd2+ 82. Ke1 Kg7 83. Re6 Re2+ 84. Kd1 Kf8 85. Rd6 Rd2+ 86. Ke1 Ke7 87. Rd4 Re2+ 88. Kd1 Rd2+ 89. Ke1 Ke6 90. g7 Re2+ 91. Kd1 Rg2 92. Rxd3 Rxg7 1/2-1/2

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.11"]
[Round "6"]
[White "Zarnowski, Krzysztof"]
[Black "Pniaczek, Marek"]
[Result "1/2-1/2"]
[ECO "D24"]
[WhiteElo "2079"]
[BlackElo "2232"]
[PlyCount "188"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. a4 b6 7. Bxc4 Bb7 8. 0-0 Bb4 9. Qe2 0-0 10. Ne5 Nbd7 11. f4 Bd6 12. e4 Qe7 13. Nd3 Bb4 14. Nxb4 Qxb4 15. f5 exf5 16. Rxf5 Nxe4 17. Nxe4 Bxe4 18. Bxf7+ Rxf7 19. Rxf7 Kxf7 20. Qxe4 Nf6 21. Qh4 Re8 22. Bg5 Re4 23. Qg3 Qxd4+ 24. Kh1 Qe5 25. Qxe5 Rxe5 26. Bf4 Rc5 27. h3 Rc4 28. Be5 Rc5 29. Bg3 Ne4 30. Kh2 Nxg3 31. Kxg3 Rc2 32. Rd1 Ke7 33. Rb1 a5 34. Kf3 c5 35. g4 Kd6 36. h4 Kd5 37. b3 Rh2 38. h5 Rh3+ 39. Kf4 Kd4 40. Rd1+ Kc3 41. Rd6 Kxb3 42. Rxb6+ Kc3 43. Rb7 g6 44. hxg6 hxg6 45. Rb5 c4 46. Rxa5 Kb4 47. Ra8 c3 48. a5 c2 49. Rb8+ Kc4 50. Rc8+ Kb3 51. Rxc2 Kxc2 52. Kg5 Ra3 53. Kxg6 Rxa5 54. g5 Kd3 55. Kf6 Ke4 56. g6 Ra6+ 57. Kf7 Kf5 58. g7 Ra7+ 59. Kf8 Kf6 60. g8N+ Ke6 61. Nh6 Rh7 62. Ng8 Rf7+ 63. Ke8 Rg7 64. Kf8 Rf7+ 65. Ke8 Rh7 66. Kf8 Rf7+ 67. Ke8 Ra7 68. Kf8 Rf7+ 69. Ke8 Rh7 70. Kf8 Kf5 71. Ne7+ Kf6 72. Ng8+ Ke6 73. Ke8 Rg7 74. Kf8 Rg6 75. Ne7 Rf6+ 76. Ke8 Rh6 77. Ng8 Rh1 78. Kf8 Rg1 79. Ne7 Rf1+ 80. Ke8 Rd1 81. Ng8 Ra1 82. Kf8 Ra7 83. Nh6 Rb7 84. Ng8 Rf7+ 85. Ke8 Rf1 86. Ne7 Ra1 87. Kd8 Ra8+ 88. Nc8 Ra1 89. Kc7 Rc1+ 90. Kd8 Rc2 91. Nb6 Rc6 92. Nc8 Ra6 93. Kc7 Ra1 94. Kd8 Rc1 1/2-1/2

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.10"]
[Round "4"]
[White "Cichon, Jakub"]
[Black "Pniaczek, Marek"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1952"]
[BlackElo "2232"]
[PlyCount "32"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. Qd2 Bf5 6. Ne5 Nbd7 7. f3 c6 8. g4 Be6 9. h4 h5 10. g5 Nh7 11. Qe3 Nhf8 12. 0-0-0 Qa5 13. Kb1 Nb6 14. Qd3 Nc4 15. Nxc4 dxc4 16. e4 cxd3 0-1

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.10"]
[Round "3"]
[White "Pniaczek, Marek"]
[Black "Laszczak, Przemyslaw"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2232"]
[BlackElo "2005"]
[PlyCount "48"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Bg4 5. h3 Bh5 6. Ng3 Bg6 7. h4 h6 8. Ne5 Bh7 9. Qh5 g6 10. Qf3 Nf6 11. Qb3 Qd5 12. Qxb7 Qxe5+ 13. Be2 Qe6 14. Qxa8 Nfd7 15. Qb7 Kd8 16. Qxa7 Bg7 17. d3 Qd6 18. Bd2 Bxb2 19. Rb1 Bd4 20. Qb7 f5 21. Ba5+ Ke8 22. Bc7 Qc5 23. Bxb8 Bxf2+ 24. Kd1 Be3 1-0

[Event "POL-ch Universities"]
[Site "Bydgoszcz"]
[Date "2023.03.10"]
[Round "5"]
[White "Pniaczek, Marek"]
[Black "Szustakowski, Antoni"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2232"]
[BlackElo "2332"]
[PlyCount "48"]
[EventDate "2023.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 213 Extra"]
[Source "ChessBase"]
[SourceDate "2023.05.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.05.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Qc7 7. Be3 Bb4 8. Qb3 Bxc3+ 9. Qxc3 Nxe4 10. Nb5 axb5 11. Qxg7 Rf8 12. Bh6 Qa5+ 13. Ke2 Qb4 14. c5 Qc4+ 15. Ke3 Qxc5+ 16. Kxe4 d5+ 17. Kf3 Nd7 18. Qxh7 Ne5+ 19. Kg3 Qb4 20. f4 Ng6 21. Qg7 e5 22. fxe5 Ra4 23. Be2 Qh4+ 24. Kf3 Bg4+ 0-1

[Event "Titled Tuesday intern op 07th Feb Late"]
[Site "Chess.com INT"]
[Date "2023.02.07"]
[Round "2"]
[White "Mendez Fortes, Eduardo Jesus"]
[Black "Pniaczek, Marek"]
[Result "1-0"]
[ECO "C83"]
[WhiteElo "2250"]
[BlackElo "2256"]
[PlyCount "81"]
[EventDate "2023.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 0-0 11. Bc2 f5 12. Nb3 Qd7 13. Nbd4 Nxd4 14. Nxd4 c5 15. Nxe6 Qxe6 16. f3 Ng5 17. Bb3 c4 18. Bc2 f4 19. Qe2 Rad8 20. g4 fxg3 21. f4 Nh3+ 22. Kh1 Nf2+ 23. Kg1 Qh3 24. Rxf2 gxf2+ 25. Qxf2 Bg5 26. Qg3 Qxg3+ 27. hxg3 Be7 28. Be3 g5 29. f5 Rc8 30. Kg2 h6 31. Rh1 Rc6 32. f6 Bxf6 33. exf6 Rcxf6 34. Bd4 Re6 35. Bd1 Kh7 36. Bf3 Rd8 37. Bg4 Ree8 38. Bf5+ Kg8 39. Rxh6 Re2+ 40. Kf3 Rde8 41. Bg6 1-0

[Event "Titled Tuesday intern op 07th Feb Late"]
[Site "Chess.com INT"]
[Date "2023.02.07"]
[Round "3"]
[White "Pniaczek, Marek"]
[Black "Toncheva, Nadya"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2256"]
[BlackElo "2192"]
[PlyCount "44"]
[EventDate "2023.02.07"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. 0-0 Nge7 5. Re1 a6 6. Bf1 d5 7. exd5 Nxd5 8. Nc3 Nxc3 9. bxc3 Be7 10. d4 0-0 11. Bf4 Bf6 12. Be3 Qc7 13. Bd3 Rd8 14. Qe2 b5 15. Be4 Bb7 16. Rad1 Ne7 17. Bxb7 Qxb7 18. dxc5 Bxc3 19. Rxd8+ Rxd8 20. Rd1 Nd5 21. Bd4 Bxd4 22. Nxd4 Nc3 0-1

