[Event "Hradec Kralove op"]
[Site "Hradec Kralove"]
[Date "2010.05.22"]
[Round "9"]
[White "Kozak, David"]
[Black "Samek, Jiri"]
[Result "1-0"]
[ECO "E94"]
[BlackElo "1851"]
[PlyCount "45"]
[EventDate "2010.05.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 exd4 8. Nxd4 Bd7 9. Be3 Re8 10. f3 Nc6 11. Qd2 a6 12. Nc2 Be6 13. Bh6 Ne5 14. Bxg7 Kxg7 15. Ne3 Nc6 16. Ncd5 Ne7 17. Nxf6 Kxf6 18. Qd4+ Kg5 19. f4+ Kh6 20. g4 f6 21. Qxf6 Bxg4 22. Nxg4+ Kh5 23. Qg5# 1-0

[Event "Hradec Kralove op"]
[Site "Hradec Kralove"]
[Date "2010.05.18"]
[Round "4"]
[White "Horyna, Josef"]
[Black "Kozak, David"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1914"]
[PlyCount "55"]
[EventDate "2010.05.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. Nf3 Bd6 5. g3 0-0 6. Bg2 c6 7. 0-0 Nd7 8. Nbd2 f5 9. e3 Nf6 10. c4 Be6 11. c5 Bc7 12. b4 Ne4 13. Qc2 a6 14. a4 Qd7 15. Rfc1 f6 16. Bf1 g5 17. b5 Rf7 18. bxa6 bxa6 19. Rab1 f4 20. exf4 gxf4 21. Rb7 Bf5 22. Nh4 fxg3 23. fxg3 Rg7 24. Rxc7 Qxc7 25. Nxf5 Rg5 26. Nxe4 dxe4 27. Qxe4 Qd7 28. Qxc6 1-0

[Event "CZE Czechia-ch U16"]
[Site "Harrachov"]
[Date "2009.10.27"]
[Round "4"]
[White "Kozak, David"]
[Black "Krusina, Patrik"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "1651"]
[BlackElo "1769"]
[PlyCount "50"]
[EventDate "2009.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 b6 6. e3 Bb7 7. Bd3 0-0 8. 0-0 Nbd7 9. Rc1 c5 10. cxd5 Nxd5 11. Bxe7 Qxe7 12. a3 cxd4 13. exd4 N7f6 14. Nxd5 Nxd5 15. Be4 Ba6 16. Re1 Rad8 17. Ne5 Bb7 18. Nc6 Bxc6 19. Rxc6 Qd7 20. Qc2 Nf6 21. Rc7 Qxd4 22. Bf3 Qf4 23. Rxa7 Rd2 24. Qc3 Nd5 25. Bxd5 Qxf2+ 0-1

[Event "CZE Czechia-ch U16"]
[Site "Harrachov"]
[Date "2009.10.24"]
[Round "1"]
[White "Haman, Jakub"]
[Black "Kozak, David"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "1946"]
[BlackElo "1651"]
[PlyCount "63"]
[EventDate "2009.10.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. 0-0 Nf6 5. Re1 0-0 6. d3 d6 7. c3 Bg4 8. h3 Bh5 9. b4 Bb6 10. Nbd2 a5 11. b5 Ne7 12. Ba3 h6 13. g4 Bg6 14. Nh4 Nh7 15. Ndf3 Kh8 16. d4 f6 17. Be6 Ng5 18. Nxg5 fxg5 19. Nf5 exd4 20. cxd4 Nxf5 21. exf5 Bf7 22. d5 Qf6 23. Qd2 Qd4 24. Qxd4 Bxd4 25. Rad1 Bb6 26. Bb2 Kh7 27. Re4 Bc5 28. Kg2 Be8 29. h4 gxh4 30. Rh1 h3+ 31. Rxh3 Bxb5 32. g5 1-0

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.05.03"]
[Round "7"]
[White "Horyna, Josef"]
[Black "Kozak, David"]
[Result "1/2-1/2"]
[ECO "E08"]
[WhiteElo "1881"]
[BlackElo "1353"]
[PlyCount "161"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. c4 Nbd7 7. Qc2 c5 8. cxd5 exd5 9. Nc3 b6 10. dxc5 bxc5 11. e3 Bb7 12. b3 Nb6 13. Bb2 Qc7 14. Rac1 Rac8 15. Qe2 a6 16. Rfd1 Rfd8 17. Bh3 Nbd7 18. b4 c4 19. a3 Rb8 20. Bg2 Nb6 21. Nd4 Qc8 22. Qf3 Qg4 23. h3 Qxf3 24. Bxf3 Ne8 25. Nce2 Bf6 26. Rc2 g6 27. h4 Bg7 28. Kg2 Nc7 29. h5 Ne6 30. Nxe6 fxe6 31. Bxg7 Kxg7 32. hxg6 hxg6 33. Nd4 Kf7 34. Bg4 e5 35. Ne6 Rd6 36. Nc5 d4+ 37. Nxb7 Rxb7 38. f4 d3 39. Rcc1 e4 40. Rh1 Kg7 41. f5 d2 42. Rc2 Rc7 43. fxg6 Kxg6 44. Bh5+ Kg5 45. Bd1 Nd5 46. Kf2 c3 47. Rh5+ Kg6 48. Rh4 Rf6+ 49. Ke2 Re7 50. Rg4+ Kf7 51. Rg5 Ke6 52. Rxd5 Kxd5 53. Rxc3 Rc6 54. Bb3+ Kd6 55. Kxd2 Rec7 56. Rxc6+ Rxc6 57. g4 Ke5 58. Bf7 Kf6 59. Be8 Rd6+ 60. Ke2 Kg5 61. a4 Kxg4 62. b5 Kf5 63. bxa6 Rxa6 64. Bb5 Ra7 65. Kf2 Ke5 66. Ke2 Rc7 67. Kd2 Kd6 68. Be2 Ra7 69. Bb5 Kc5 70. Kc3 Rg7 71. Ba6 Rg3 72. Kd2 Kb4 73. Bb5 Rg2+ 74. Ke1 Kc5 75. Kf1 Ra2 76. Ke1 Kd6 77. Kd1 Ke5 78. Kc1 Kf6 79. Bc6 Kf5 80. Bd7+ Kg5 81. Bc6 1/2-1/2

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.05.02"]
[Round "6"]
[White "Kozak, David"]
[Black "Hrdina, Karl"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "1353"]
[BlackElo "1973"]
[PlyCount "80"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Nbd7 6. e3 Be7 7. cxd5 exd5 8. Bd3 0-0 9. 0-0 Re8 10. Rc1 Nf8 11. a3 Ng6 12. b4 a6 13. Ne2 Ne4 14. Bxe7 Qxe7 15. Ng3 Bg4 16. Be2 Qf6 17. Nxe4 Rxe4 18. Nd2 Bxe2 19. Nxe4 Qe7 20. Qxe2 Qxe4 21. f3 Qe6 22. Rfe1 Qf6 23. Qf2 h6 24. Qg3 Re8 25. Kh1 Re7 26. Rcd1 Rd7 27. e4 Kh7 28. exd5 Rxd5 29. Re4 a5 30. bxa5 Rxa5 31. d5 cxd5 32. Red4 Ne7 33. Rb4 Rxa3 34. Rxb7 Nf5 35. Qf2 d4 36. Qb2 Re3 37. Rb3 Re6 38. g4 Ne3 39. Rxd4 Qxf3+ 40. Kg1 Qf1# 0-1

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.05.02"]
[Round "5"]
[White "Vasek, Rostislav"]
[Black "Kozak, David"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1712"]
[BlackElo "1353"]
[PlyCount "126"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 e6 5. d3 Be7 6. Na3 0-0 7. 0-0 Nc6 8. Re1 d5 9. exd5 exd5 10. Bb5 Bg4 11. Bg5 Bd6 12. h3 Bd7 13. Bxc6 bxc6 14. Ne5 Bxe5 15. Rxe5 Be6 16. Nc2 h6 17. Bxf6 Qxf6 18. Re3 Rab8 19. Rf3 Qd8 20. b3 Qa5 21. b4 cxb4 22. cxb4 Qa4 23. a3 Rfe8 24. Nd4 Qxd1+ 25. Rxd1 Bd7 26. Re3 Rxe3 27. fxe3 a5 28. bxa5 c5 29. Nf3 Ra8 30. Ne5 Be6 31. Nc6 Ra6 32. Ne5 Rxa5 33. Ra1 c4 34. dxc4 dxc4 35. Nc6 Rg5 36. Nd4 Bxh3 37. Kh2 Bf5 38. Nf3 Rg4 39. g3 Bd3 40. Rc1 Re4 41. Nd2 Rxe3 42. Nxc4 Bxc4 43. Rxc4 Rxa3 44. Kh3 g5 45. Kg4 Kg7 46. Rc5 Kg6 47. Rc6+ f6 48. Rc8 h5+ 49. Kh3 h4 50. Rc6 Rxg3+ 51. Kh2 Re3 52. Rb6 Kf5 53. Rb5+ Re5 54. Rb4 Re4 55. Rb5+ Kg4 56. Rb2 h3 57. Rf2 f5 58. Rc2 f4 59. Rf2 f3 60. Rf1 Re2+ 61. Kh1 Kg3 62. Kg1 f2+ 63. Kh1 Re1 0-1

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.05.01"]
[Round "4"]
[White "Kozak, David"]
[Black "Broz, Jiri"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1353"]
[BlackElo "1762"]
[PlyCount "48"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Bd6 7. Bd3 dxc4 8. Bxc4 0-0 9. 0-0 Re8 10. Qc2 Qc7 11. h3 e5 12. Bd3 exd4 13. Nxd4 h6 14. Bxf6 Nxf6 15. Bf5 Bxf5 16. Nxf5 Bb4 17. Rfd1 Rad8 18. a3 Bxc3 19. Qxc3 Kh7 20. b4 a6 21. Rac1 Rxd1+ 22. Rxd1 Rd8 23. Rxd8 Qxd8 24. Qd4 Qc8 1/2-1/2

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.04.30"]
[Round "3"]
[White "Bach, Markus"]
[Black "Kozak, David"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1963"]
[BlackElo "1353"]
[PlyCount "113"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. c4 0-0 7. Nc3 d6 8. Re1 Nbd7 9. e4 c5 10. b3 a6 11. h3 Rc8 12. d5 e5 13. Nh2 Re8 14. f4 Bf8 15. g4 h6 16. f5 Nh7 17. Nf3 Be7 18. Be3 Ng5 19. Rf1 Nxf3+ 20. Rxf3 Bg5 21. Bf2 Nf8 22. Qe1 Nh7 23. h4 Be7 24. Rh3 f6 25. Be3 Rf8 26. Nb1 Rf7 27. Nd2 Rb8 28. Nf3 Bc8 29. Rg3 Bd7 30. Qd2 b5 31. Bf1 bxc4 32. Bxc4 Bb5 33. Rc1 a5 34. Bxb5 Rxb5 35. Rc4 Rb4 36. Qc1 Rxc4 37. Qxc4 Qb6 38. Bd2 Rf8 39. Rg2 Rb8 40. Bc3 Qb5 41. Nd2 Nf8 42. Qxb5 Rxb5 43. Nc4 a4 44. Rb2 axb3 45. Rxb3 Rxb3 46. axb3 Nd7 47. Ba5 Kf8 48. Bc7 Ke8 49. Kf2 Nf8 50. Bxd6 Bxd6 51. Nxd6+ Kd7 52. Nb5 g6 53. Ke2 g5 54. h5 Kd8 55. Kd3 Nd7 56. Nd6 Ke7 57. Nb7 1-0

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.04.30"]
[Round "2"]
[White "Kozak, David"]
[Black "Blazek, Jaroslav"]
[Result "1-0"]
[ECO "D67"]
[WhiteElo "1353"]
[BlackElo "1800"]
[PlyCount "127"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. Bg5 Be7 6. e3 Nbd7 7. Bd3 dxc4 8. Bxc4 Nd5 9. Bxe7 Qxe7 10. 0-0 0-0 11. Rc1 Qb4 12. Qb3 Qxb3 13. Bxb3 N7f6 14. Ne5 Nxc3 15. bxc3 Ne4 16. Rfd1 f6 17. Nd3 a5 18. a4 Re8 19. c4 Rb8 20. f3 Nd6 21. c5 Nf5 22. Kf2 b5 23. cxb6 Rxb6 24. Nc5 Kf7 25. Rb1 Kg6 26. Bc2 Rxb1 27. Rxb1 Kf7 28. Rb6 Ne7 29. e4 Rd8 30. Ke3 f5 31. Bb3 f4+ 32. Kd3 g5 33. g4 Kf6 34. e5+ Kf7 35. Ne4 h6 36. Nd6+ Kf8 37. Nc4 Nd5 38. Rb8 Ke7 39. Nxa5 Ba6+ 40. Kd2 Nb4 41. Rxd8 Kxd8 42. Bxe6 Kc7 43. Nc4 Kd8 44. Nd6 Ke7 45. Bc4 Bxc4 46. Nxc4 Nd5 47. Nd6 Ke6 48. Nf5 c5 49. Kd3 cxd4 50. Kxd4 Nb4 51. Kc4 Nc6 52. Kc5 Nxe5 53. Nd4+ Kd7 54. a5 Kc7 55. Kd5 Nd3 56. Nf5 Ne1 57. Ke4 Ng2 58. Nxh6 Ne3 59. Nf7 Nf1 60. Nxg5 Nxh2 61. Ne6+ Kb7 62. Nxf4 Nf1 63. g5 Ng3+ 64. Ke5 1-0

[Event "Karlovy Vary op"]
[Site "Karlovy Vary"]
[Date "2009.04.29"]
[Round "1"]
[White "Petrun, Milan"]
[Black "Kozak, David"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1974"]
[BlackElo "1353"]
[PlyCount "31"]
[EventDate "2009.04.29"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CZE"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 b5 8. Bf3 Bb7 9. e5 Nd5 10. Nxd5 exd5 11. Re1 dxe5 12. Rxe5+ Be7 13. Nf5 Nc6 14. Rxd5 Qc7 15. Nxg7+ Kf8 16. Rd7 1-0

[Event "Sec Almed op"]
[Site "Sec u Chrudimi"]
[Date "2008.10.28"]
[Round "4"]
[White "Kozak, David"]
[Black "Safr, Jan"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1308"]
[BlackElo "1686"]
[PlyCount "46"]
[EventDate "2008.10.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 b6 4. Nf3 Bb7 5. e3 Nc6 6. a3 a5 7. Bd3 f5 8. Bd2 e5 9. dxe5 Nxe5 10. Be2 g5 11. 0-0 g4 12. Nd4 Nh6 13. g3 c5 14. Ndb5 Nf3+ 15. Bxf3 Bxf3 16. Qc2 Qg5 17. Nd5 0-0 18. Bc3 Nf7 19. Nf4 Be5 20. Bxe5 Nxe5 21. Ng2 Be4 22. Qd1 Nf3+ 23. Kh1 Qh5 0-1

