[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2008.02.03"]
[Round "9"]
[White "Borowicz, Miroslaw"]
[Black "Kosak, Piotr"]
[Result "1-0"]
[ECO "E77"]
[WhiteElo "1917"]
[PlyCount "53"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Be2 c5 7. d5 Nbd7 8. Nf3 Qa5 9. Bd2 a6 10. 0-0 Qc7 11. Qc2 b6 12. Rae1 e6 13. e5 dxe5 14. fxe5 Nxe5 15. Nxe5 Qxe5 16. Bf3 Qb8 17. dxe6 Bxe6 18. Bxa8 Qxa8 19. b3 Qc6 20. Qc1 Ng4 21. Ne2 Ne5 22. Nf4 Rd8 23. Bc3 f6 24. Rd1 Rxd1 25. Qxd1 Nf7 26. Nxe6 Qxe6 27. Qf3 1-0

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2008.01.27"]
[Round "8"]
[White "Kosak, Piotr"]
[Black "Wolski, Jaroslaw"]
[Result "0-1"]
[ECO "A29"]
[BlackElo "1963"]
[PlyCount "60"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 0-0 6. Qb3 Bxc3 7. Qxc3 Re8 8. 0-0 d5 9. d3 e4 10. Nd4 Ne5 11. Bg5 c5 12. Nb5 d4 13. Qd2 a6 14. Bxf6 gxf6 15. Na3 exd3 16. exd3 Rb8 17. Nc2 Bf5 18. Ne1 Kg7 19. h3 h5 20. f4 Ng6 21. Qd1 Qd7 22. Kh2 Re3 23. Rf3 Rbe8 24. Rxe3 dxe3 25. Qe2 Qd4 26. Rd1 h4 27. Be4 hxg3+ 28. Kxg3 Rh8 29. Qc2 Rxh3+ 30. Kg2 Nxf4+ 0-1

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2008.01.20"]
[Round "7"]
[White "Kosak, Piotr"]
[Black "Sawczuk, Pawel"]
[Result "1-0"]
[ECO "A22"]
[PlyCount "131"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Be6 6. d3 Nc6 7. Bd2 Bc5 8. Nf3 h6 9. 0-0 0-0 10. a3 a6 11. Rc1 Ba7 12. Nxd5 Bxd5 13. Bc3 f6 14. Qc2 Qd7 15. Nh4 Bxg2 16. Nxg2 Rac8 17. Qb3+ Kh8 18. Qxb7 Bd4 19. e3 Bxc3 20. Rxc3 Na5 21. Qb4 Qb5 22. Qxb5 axb5 23. Rfc1 Rf7 24. Kf1 Rd7 25. Ke2 Nb7 26. Ne1 Kg8 27. Nc2 Nd6 28. Nb4 e4 29. Na6 exd3+ 30. Rxd3 c6 31. Rcd1 Ra7 32. Rxd6 Rxa6 33. Rd8+ Rxd8 34. Rxd8+ Kf7 35. Rd7+ Kf8 36. Kd2 g6 37. Kc3 c5 38. Rc7 b4+ 39. axb4 cxb4+ 40. Kxb4 Ra1 41. h4 Rf1 42. Rc2 Ke7 43. b3 Kd6 44. Kb5 g5 45. hxg5 fxg5 46. Rc6+ Kd7 47. Rc2 h5 48. Rc5 Rxf2 49. Rxg5 Rf3 50. Rxh5 Rxe3 51. b4 Rxg3 52. Rc5 Rg6 53. Ka5 Rc6 54. Rxc6 Kxc6 55. Ka6 Kc7 56. b5 Kb8 57. Kb6 Ka8 58. Kc7 Ka7 59. b6+ Ka6 60. b7 Ka5 61. b8Q Ka4 62. Kc6 Ka3 63. Kc5 Ka2 64. Kc4 Ka1 65. Kc3 Ka2 66. Qb2# 1-0

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2008.01.06"]
[Round "6"]
[White "Kosak, Piotr"]
[Black "Zielinski, Michal"]
[Result "1-0"]
[ECO "E67"]
[BlackElo "1863"]
[PlyCount "111"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 c6 6. d4 d6 7. 0-0 Nbd7 8. b3 Nb6 9. Bb2 d5 10. cxd5 Nbxd5 11. Re1 e6 12. Qc2 Nxc3 13. Bxc3 Nd5 14. Bb2 f5 15. Rad1 Qa5 16. a4 Qd8 17. Nd2 Bd7 18. e4 Nf6 19. e5 Nd5 20. Ba3 Rf7 21. Nc4 Bf8 22. Bxf8 Rxf8 23. Bxd5 exd5 24. Nd6 Qb8 25. Qc5 Be6 26. b4 f4 27. b5 cxb5 28. Qxb5 b6 29. Qc6 Qd8 30. Rc1 fxg3 31. fxg3 h5 32. Ne4 Bf7 33. Nf6+ Kg7 34. Qb7 Qb8 35. Qxb8 Rfxb8 36. Rc7 Rc8 37. Rec1 Rxc7 38. Rxc7 Kf8 39. Kf2 Be6 40. Ke3 a5 41. Rc6 b5 42. Rxe6 bxa4 43. Rb6 a3 44. Rb3 a4 45. Rxa3 Ra5 46. Nxd5 Rxd5 47. Rxa4 Ke7 48. Ke4 Rb5 49. d5 Rb2 50. Ra7+ Ke8 51. e6 Rxh2 52. d6 Kf8 53. Ke5 Rf2 54. Ra8+ Kg7 55. d7 Re2+ 56. Kf4 1-0

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2007.12.09"]
[Round "5"]
[White "Nojszewski, Adam"]
[Black "Kosak, Piotr"]
[Result "1/2-1/2"]
[ECO "E83"]
[WhiteElo "1992"]
[PlyCount "86"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 e6 8. Qd2 a6 9. Nc1 Bd7 10. Be2 Na7 11. Nd3 b5 12. c5 Nc6 13. 0-0 Rb8 14. d5 exd5 15. exd5 Ne5 16. Nxe5 dxe5 17. Bg5 c6 18. Ne4 Nxe4 19. fxe4 f6 20. Be3 f5 21. exf5 gxf5 22. Rad1 f4 23. Bf2 Kh8 24. Bf3 cxd5 25. Qxd5 Bf5 26. Qxd8 Rbxd8 27. Bb7 a5 28. c6 Rxd1 29. Rxd1 e4 30. c7 Bf6 31. Bd4 Kg7 32. Bxf6+ Kxf6 33. Rd8 Rf7 34. c8Q Bxc8 35. Bxc8 Rc7 36. Ba6 Rc1+ 37. Kf2 Rc2+ 38. Ke1 Rxg2 39. Rd2 Rg1+ 40. Ke2 e3 41. Rd1 Rg2+ 42. Kf3 Rxb2 43. Kxf4 Rxa2 1/2-1/2

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2007.12.02"]
[Round "4"]
[White "Kosak, Piotr"]
[Black "Olszewski, Piotr"]
[Result "1-0"]
[ECO "A50"]
[BlackElo "2275"]
[PlyCount "91"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. d4 0-0 5. g3 b6 6. Bg2 Bb7 7. 0-0 Nc6 8. e4 d6 9. e5 Nd7 10. exd6 exd6 11. Be3 Nf6 12. Qd2 Ng4 13. Bf4 Ne7 14. h3 Nf6 15. g4 Qd7 16. Rad1 Rae8 17. Qc2 Nxg4 18. d5 Nf6 19. Qd2 Nf5 20. Rfe1 Qd8 21. b3 a6 22. Qd3 Bc8 23. b4 Nh5 24. Bh2 Bh6 25. Ne2 Nh4 26. Nxh4 Qxh4 27. a3 Bf5 28. Qb3 Re7 29. c5 Rfe8 30. Kf1 Be3 31. Bg3 Nxg3+ 32. Nxg3 Qf4 33. Re2 Bxc5 34. bxc5 Rxe2 35. Nxe2 Qe5 36. Ng3 dxc5 37. Qf3 Bc2 38. Rc1 Qb2 39. Qf4 Qxa3 40. Kg1 Qd3 41. Bf1 Qb3 42. Qxc7 a5 43. d6 Bf5 44. Nxf5 gxf5 45. d7 Kg7 46. dxe8Q 1-0

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2007.11.18"]
[Round "3"]
[White "Kosak, Piotr"]
[Black "Czudowski, Marek"]
[Result "0-1"]
[ECO "D79"]
[PlyCount "95"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 0-0 6. b3 d5 7. cxd5 cxd5 8. d4 Nc6 9. 0-0 Ne4 10. Bb2 Qa5 11. Rc1 Bh6 12. e3 Bg4 13. h3 Bxf3 14. Bxf3 Nxg3 15. Re1 Ne4 16. Nxe4 dxe4 17. Bxe4 Rac8 18. a3 Qg5+ 19. Qg4 Qb5 20. Qd1 Qg5+ 21. Bg2 e6 22. b4 Ne7 23. Qg4 Qb5 24. Qf3 Nd5 25. Bf1 Qd7 26. Bc4 Nb6 27. Bb3 Bg7 28. Red1 Rfd8 29. Kg2 Qe7 30. Rxc8 Rxc8 31. Rc1 Rxc1 32. Bxc1 Qc7 33. Bb2 Nd7 34. Qe2 Qc6+ 35. f3 Nf6 36. Qc4 Qd6 37. e4 Qf4 38. Qe2 Nh5 39. Qf2 Bh6 40. h4 g5 41. Bc3 gxh4 42. Be1 Bg5 43. d5 Qc1 44. Bc2 Nf4+ 45. Kh2 exd5 46. exd5 Nxd5 47. Be4 Qf4+ 48. Kh3 0-1

[Event "Mazowiec-chT 0708"]
[Site "Poland"]
[Date "2007.10.28"]
[Round "2"]
[White "Liszek, Krzysztof"]
[Black "Kosak, Piotr"]
[Result "1/2-1/2"]
[ECO "A00"]
[WhiteElo "2033"]
[PlyCount "117"]
[EventDate "2007.10.14"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 d6 3. b5 g6 4. e3 Bg7 5. Nf3 Nf6 6. d4 e4 7. Nfd2 d5 8. c4 c6 9. Ba3 Bd7 10. Nc3 Be6 11. Be2 Nbd7 12. f3 exf3 13. Bxf3 Bf8 14. Bxf8 Kxf8 15. Qb3 Nb6 16. c5 Nbd7 17. Ne2 Kg7 18. Qd3 Re8 19. Ng3 Qc7 20. 0-0 cxb5 21. e4 dxe4 22. Bxe4 Rad8 23. Qxb5 Nxe4 24. Ndxe4 a6 25. Qb2 Bd5 26. Nd6 Re7 27. Rae1 Rxe1 28. Rxe1 Nf6 29. Rf1 b6 30. Qf2 Ng8 31. Qf4 Kf8 32. Qe5 bxc5 33. Qxd5 Rxd6 34. Qxc5 Qxc5 35. dxc5 Rc6 36. Rc1 Nf6 37. Kf2 Nd7 38. Ne4 f5 39. Ng5 h6 40. Nf3 Rxc5 41. Rd1 Ke7 42. a4 Ra5 43. g3 Rxa4 44. Nh4 Ne5 45. Rb1 a5 46. Rb6 Ra2+ 47. Kg1 a4 48. Nxg6+ Nxg6 49. Rxg6 h5 50. Ra6 a3 51. h4 Kd7 52. Kf1 Kc7 53. Kg1 Kb7 54. Ra5 Ra1+ 55. Kf2 a2 56. Kg2 Kb6 57. Ra4 Kb5 58. Ra8 Kc4 59. Rc8+ 1/2-1/2

[Event "POL-chT Mazovia 06/07 op"]
[Site "Poland"]
[Date "2007.02.25"]
[Round "10.22"]
[White "Mistura, Lukasz"]
[Black "Kosak, Piotr"]
[Result "1-0"]
[ECO "B57"]
[PlyCount "75"]
[EventDate "2006.10.22"]
[EventType "team-swiss"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]
[WhiteTeam "Warszawa Entropia IV"]
[BlackTeam "Gora Kalwaria Korona II"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "POL"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Bc4 Nf6 6. Nc3 g6 7. 0-0 a6 8. a4 Bg7 9. Bg5 0-0 10. Re1 Qb6 11. Nb3 Ng4 12. Qd2 Nge5 13. Nd5 Qd8 14. Bf1 Be6 15. c3 f6 16. Bh4 Bf7 17. Rad1 Be6 18. f4 Nf7 19. Nd4 Bd7 20. f5 g5 21. Bf2 Nxd4 22. cxd4 Bxa4 23. Rc1 Bd7 24. Rc7 e6 25. fxe6 Bxe6 26. Ne7+ Kh8 27. Rec1 Bd7 28. Nf5 Bc6 29. Re7 d5 30. exd5 Qxd5 31. Rc5 Qd8 32. Bc4 Nh6 33. Qe2 Nxf5 34. Rxf5 b5 35. Ba2 Qa5 36. Bb1 Qa1 37. Qc2 Rfe8 38. Rxf6 1-0

[Event "Mazowieckie-chT 0506"]
[Site "Poland"]
[Date "2006.01.29"]
[Round "8"]
[White "Kosny, Marek"]
[Black "Kosak, Piotr"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "2131"]
[PlyCount "94"]
[EventDate "2005.10.09"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 a6 9. h3 Qc7 10. Nc2 d6 11. Bg5 Be6 12. Nd5 Bxd5 13. cxd5 Ne5 14. Rc1 Rac8 15. b3 h6 16. Bf4 Nh7 17. Qd2 g5 18. Be3 Ng6 19. Bd4 Qd7 20. Bxg7 Kxg7 21. Nd4 Nf6 22. Rxc8 Rxc8 23. Rc1 Rxc1+ 24. Qxc1 e5 25. dxe6 fxe6 26. Qc7 Kf7 27. Qxb7 Ne7 28. Qxa6 d5 29. b4 e5 30. Nb3 Qc6 31. Qxc6 Nxc6 32. a3 Ke6 33. Kf1 Kd6 34. Ke1 Nd7 35. b5 Ncb8 36. Kd1 Nb6 37. Kc2 N8d7 38. e3 e4 39. Nd4 h5 40. Bf1 Nc5 41. Be2 h4 42. gxh4 gxh4 43. Nf5+ Ke5 44. Nxh4 Kf6 45. Ng2 Ne6 46. Kc3 Nc5 47. Nf4 Kg5 1-0

[Event "Mazowieckie-chT 0506"]
[Site "Poland"]
[Date "2005.10.09"]
[Round "1"]
[White "Wroblewski, Damian"]
[Black "Kosak, Piotr"]
[Result "1/2-1/2"]
[ECO "B34"]
[PlyCount "90"]
[EventDate "2005.10.09"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 g6 6. Bb5 Bd7 7. Bg5 Bg7 8. Nce2 Nf6 9. Ng3 0-0 10. 0-0 Rc8 11. Qd2 Nxd4 12. Bxd7 Qxd7 13. Qxd4 Rxc2 14. Rfe1 Rfc8 15. Bxf6 Bxf6 16. e5 Bg7 17. Rad1 R8c5 18. Ne4 Rxe5 19. Qd3 Rxb2 20. Qa3 Rc2 21. f4 Re6 22. Qb3 Qc6 23. Qf3 Rxa2 24. Rc1 Rxe4 25. Qxe4 Qxe4 26. Rc8+ Bf8 27. Rxe4 Kg7 28. Rb8 b6 29. Rc4 f5 30. Rcc8 e5 31. Rxf8 e4 32. Rg8+ Kf7 33. Rgf8+ Ke6 34. Ra8 Kd5 35. Rfd8 Kd4 36. Rxd6+ Ke3 37. Rad8 Kxf4 38. Rd2 Ra3 39. g3+ Kg4 40. Rh8 Kf3 41. Rf2+ Kg4 42. Rf4+ Kg5 43. Rxh7 a5 44. Rf7 a4 45. h4+ Kh6 1/2-1/2

[Event "Mazowieckie-chT 0405"]
[Site "Poland"]
[Date "2004.12.12"]
[Round "6"]
[White "Myc, Marcin"]
[Black "Kosak, Piotr"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2293"]
[PlyCount "99"]
[EventDate "2004.10.03"]
[EventType "team-tourn"]
[EventRounds "10"]
[EventCountry "POL"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 c5 4. d4 cxd4 5. Nxd4 Nc6 6. e4 Bg7 7. Be3 0-0 8. Be2 d6 9. 0-0 Qd7 10. f3 b6 11. Nxc6 Qxc6 12. Rc1 Be6 13. Nd5 Qb7 14. Bd4 Bxd5 15. cxd5 Rac8 16. Qa4 Rc7 17. Ba6 Qb8 18. Rc6 Nd7 19. Bxg7 Kxg7 20. Qd4+ f6 21. b4 Ne5 22. Rcc1 g5 23. a4 Rd8 24. Rc3 Rdd7 25. Rfc1 Rxc3 26. Qxc3 Kf8 27. Kf2 h5 28. Ke3 Kf7 29. g3 Qh8 30. Qc8 Qxc8 31. Bxc8 Rd8 32. Rc7 Ke8 33. f4 Ng4+ 34. Bxg4 hxg4 35. fxg5 fxg5 36. Rxa7 Rb8 37. Kd4 b5 38. axb5 Rxb5 39. Kc4 Rb8 40. b5 Kf7 41. Kb4 Kf6 42. Ka5 e6 43. b6 exd5 44. exd5 Rh8 45. b7 Rxh2 46. b8Q Ra2+ 47. Kb6 Rb2+ 48. Kc7 Rxb8 49. Kxb8 Ke5 50. Rg7 1-0

