[Event "Pardubice Czech op-C 29th"]
[Site "Pardubice"]
[Date "2018.07.22"]
[Round "2"]
[White "Polich, Sergey"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2096"]
[BlackElo "1761"]
[PlyCount "195"]
[EventDate "2018.07.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 Be7 5. cxd5 exd5 6. e3 0-0 7. Bd3 c6 8. Qc2 h6 9. Bh4 Be6 10. Nf3 Nbd7 11. 0-0 Re8 12. Rab1 Ne4 13. Bxe7 Rxe7 14. b4 Nxc3 15. Qxc3 a6 16. a4 Nb6 17. a5 Nd7 18. Nd2 Nf6 19. Nb3 Qc8 20. Qc2 Qc7 21. Nc5 Ng4 22. g3 Nf6 23. Bf5 Bxf5 24. Qxf5 Qc8 25. Qxc8+ Rxc8 26. Kg2 Ne4 27. Nxe4 Rxe4 28. Kf3 Rce8 29. Rfc1 g6 30. Ra1 Ra8 31. Ke2 Ree8 32. Kd3 Re6 33. Rc2 f5 34. h3 Kf7 35. g4 Kf6 36. gxf5 Kxf5 37. Rg1 Rf6 38. f3 Ke6 39. Rcg2 g5 40. h4 Rxf3 41. hxg5 hxg5 42. Rxg5 Raf8 43. Rg8 Rxg8 44. Rxg8 Kd7 45. Rg7+ Kc8 46. Re7 Rf2 47. Rg7 Rf3 48. Ke2 Rh3 49. Re7 Rh2+ 50. Kd3 Rh3 51. Kc3 Rg3 52. b5 axb5 53. Kb4 Rg1 54. Kc5 b4 55. Kxb4 Rb1+ 56. Kc5 Rb5+ 57. Kd6 Kb8 58. a6 Ka7 59. axb7 Rxb7 60. Rc7 Kb8 61. Rxc6 Rb3 62. Kxd5 Rxe3 63. Re6 Rd3 64. Rc6 Kb7 65. Rc4 Rh3 66. Ke6 Rh6+ 67. Kf5 Rh5+ 68. Kg6 Rd5 69. Kf6 Rh5 70. Rc3 Rh6+ 71. Kf5 Rh5+ 72. Kf4 Kb6 73. Ke4 Rh4+ 74. Kd5 Rh5+ 75. Ke6 Rh6+ 76. Kd7 Rh7+ 77. Kd6 Rh6+ 78. Kd5 Rh5+ 79. Kc4 Kc6 80. Ra3 Rh1 81. Ra6+ Kd7 82. Kc5 Rc1+ 83. Kd5 Rd1 84. Ra7+ Ke8 85. Kc5 Rc1+ 86. Kd6 Rb1 87. Ra8+ Kf7 88. d5 Rb6+ 89. Kc7 Rb5 90. d6 Rc5+ 91. Kd7 Rc2 92. Ra1 Rd2 93. Rf1+ Kg6 94. Ke7 Ra2 95. Kd8 Ra7 96. d7 Ra8+ 97. Ke7 Ra7 98. Ke8 1-0

[Event "CZE-chT2D 1617"]
[Site "Czech Republic"]
[Date "2017.03.19"]
[Round "10.8"]
[White "Schaffer, Ondrej"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "1883"]
[BlackElo "1624"]
[PlyCount "47"]
[EventDate "2016.10.09"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Policka Stefanydes"]
[BlackTeam "Polabiny III"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 0-0 6. e3 b6 7. Bd3 dxc4 8. Bxc4 Bb7 9. 0-0 Nbd7 10. Rc1 c5 11. dxc5 Nxc5 12. Qe2 Nd5 13. Bxe7 Nxc3 14. Rxc3 Qxe7 15. Rfc1 Rfd8 16. Nd4 g6 17. Qg4 h5 18. Qh3 e5 19. Nf3 Bc8 20. Qg3 Ne4 21. Qxg6+ Kh8 22. Qxe4 Be6 23. Qxe5+ Kg8 24. Nd4 1-0

[Event "CZE-chT2D 1617"]
[Site "Czech Republic"]
[Date "2017.01.29"]
[Round "7.8"]
[White "Krusina, Patrik"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1874"]
[BlackElo "1624"]
[PlyCount "61"]
[EventDate "2016.10.09"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Lanskroun"]
[BlackTeam "Polabiny III"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. 0-0 Be7 8. c4 Nf6 9. h3 dxc4 10. Bxc4 0-0 11. Nc3 h6 12. Bf4 Nh5 13. Bh2 Bd6 14. Bxd6 Qxd6 15. Rc1 Nf4 16. Ne4 Qg6 17. Ng3 h5 18. Qa4 Ne7 19. Ne5 Qg5 20. Nxf7 Rxf7 21. Qe8+ Kh7 22. Bxf7 h4 23. Rc5 Bf5 24. Rxf5 Nxf5 25. Qxa8 Nh6 26. Qxb7 hxg3 27. Qe4+ Kh8 28. fxg3 Nxh3+ 29. gxh3 Qxg3+ 30. Qg2 Qe3+ 31. Kh1 1-0

[Event "CZE-chT2D 1617"]
[Site "Czech Republic"]
[Date "2016.11.13"]
[Round "3.7"]
[White "Cach, Ondrej"]
[Black "Bilek, Roman"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1624"]
[BlackElo "1876"]
[PlyCount "138"]
[EventDate "2016.10.09"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny III"]
[BlackTeam "Zdar nad Sazavou"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 6. Bd3 Nc6 7. Be3 Bg4 8. h3 Bh5 9. Be2 e6 10. Qd2 0-0-0 11. 0-0-0 h6 12. Ne5 Nxe5 13. dxe5 Qxd2+ 14. Rxd2 Bxe2 15. Rxd8+ Kxd8 16. exf6 Bh5 17. g4 Bg6 18. Bd4 Rg8 19. Rd1 Kc8 20. fxg7 Bxg7 21. Bxg7 Rxg7 22. f3 f5 23. Ne2 Rd7 24. Nf4 Rxd1+ 25. Kxd1 Bf7 26. Nd3 b6 27. Kd2 c5 28. Ne5 Bg8 29. Ke3 Kc7 30. Kf4 Kd6 31. a3 Kd5 32. gxf5 exf5 33. Kxf5 Be6+ 34. Kf6 Bxh3 35. Nd3 Kd4 36. Kg6 c4 37. Nb4 a5 38. c3+ Ke5 39. Nc6+ Kf4 40. Nd4 Bg2 41. Kxh6 Bxf3 42. Kg6 Bg4 43. Kf6 Ke4 44. Ke7 Kd3 45. Kd6 Kd2 46. Kc6 Kc1 47. Kxb6 Kxb2 48. Kxa5 Kxc3 49. Nb5+ Kb3 50. Nd4+ Kxa3 51. Kb5 c3 52. Kc4 Kb2 53. Kd3 Bh5 54. Ke3 Bg6 55. Ke2 Bc2 56. Ke1 Bd3 57. Kd1 Bc4 58. Ke1 Kc1 59. Nc6 Kc2 60. Nd4+ Kd3 61. Nc6 Bb3 62. Kf2 Ba4 63. Nb4+ Kc4 64. Na2 c2 65. Ke2 Kb3 66. Nc1+ Kb2 67. Kd2 Bb5 68. Na2 Bc4 69. Nc1 Kb1 0-1

[Event "CZE-chT U18 Extraliga final-B 1516"]
[Site "Czech Republic"]
[Date "2016.04.23"]
[Round "10.3"]
[White "Cach, Ondrej"]
[Black "Otruba, Marek"]
[Result "0-1"]
[ECO "B93"]
[WhiteElo "1576"]
[BlackElo "1755"]
[PlyCount "90"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny U18 II"]
[BlackTeam "Ricany U18"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 0-0 8. 0-0 Nc6 9. f4 a6 10. Bf3 Qc7 11. Qe2 Nxd4 12. Bxd4 e5 13. Be3 Be6 14. Qf2 Rac8 15. a3 b5 16. Rad1 Nd7 17. Qd2 exf4 18. Bxf4 Be5 19. Bxe5 dxe5 20. Rf2 Nb6 21. Qg5 f6 22. Qh6 Nc4 23. Qc1 Kg7 24. Nd5 Bxd5 25. Rxd5 Rfd8 26. Rxd8 Rxd8 27. b3 Nb6 28. Rd2 Qc5+ 29. Rf2 Na8 30. Be2 Nc7 31. Bd3 Rxd3 32. b4 Qe3 33. Qxe3 Rxe3 34. Rd2 Rc3 35. Rd7+ Kh6 36. Rd6 Kg5 37. h4+ Kxh4 38. Rxf6 Kg5 39. Rf7 h5 40. Re7 Kf4 41. Rf7+ Kxe4 42. Rg7 Kf5 43. Rf7+ Ke6 44. Rg7 Kf6 45. Rd7 Rxc2 0-1

[Event "CZE-chT U18 Extraliga final-B 1516"]
[Site "Czech Republic"]
[Date "2016.04.23"]
[Round "9.3"]
[White "Sykora, Marek1111"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C27"]
[WhiteElo "1785"]
[BlackElo "1576"]
[PlyCount "57"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Liberec Desko U18"]
[BlackTeam "Polabiny U18 II"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Bc5 4. d3 0-0 5. f4 exf4 6. Bxf4 d6 7. Nf3 Nc6 8. Bg5 h6 9. Bh4 Be6 10. Nd5 Bxd5 11. Bxd5 Qe7 12. Bxc6 bxc6 13. Qd2 Qe6 14. Bxf6 Qxf6 15. d4 Bb6 16. 0-0 Qe7 17. Rae1 c5 18. d5 Qd7 19. Nh4 c6 20. Nf5 Rad8 21. dxc6 Qc7 22. Rf3 Kh7 23. Nxh6 d5 24. exd5 c4+ 25. Kh1 gxh6 26. Rf6 Rd6 27. Qxh6+ Kg8 28. Rxd6 Bd4 29. Re4 1-0

[Event "CZE-chT U18 Extraliga final-B 1516"]
[Site "Czech Republic"]
[Date "2016.04.22"]
[Round "8.3"]
[White "Cach, Ondrej"]
[Black "Novotny, David"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "1576"]
[BlackElo "1720"]
[PlyCount "58"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny U18 II"]
[BlackTeam "Praha Kobylisy U18"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 d6 2. d4 Nf6 3. Nc3 c6 4. a4 Qa5 5. Bd2 Qb6 6. Nf3 Bg4 7. a5 Bxf3 8. axb6 Bxd1 9. Nxd1 Na6 10. bxa7 Rxa7 11. Bd3 g6 12. 0-0 Bg7 13. Ra2 Nd7 14. Be3 0-0 15. Bxa6 Rxa6 16. Rxa6 bxa6 17. Nc3 Rb8 18. b3 c5 19. Ne2 cxd4 20. Bxd4 Bxd4 21. Nxd4 Rc8 22. Ra1 e5 23. Nf3 Rxc2 24. h3 Nc5 25. b4 Nxe4 26. Rxa6 Rc1+ 27. Kh2 Nxf2 28. Rxd6 Rh1+ 29. Kg3 Ne4+ 0-1

[Event "CZE-chT2D 1516"]
[Site "Czech Republic"]
[Date "2016.04.03"]
[Round "10.7"]
[White "Daniel, Robert"]
[Black "Cach, Ondrej"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1695"]
[BlackElo "1701"]
[PlyCount "36"]
[EventDate "2015.10.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Rychnov nad Kneznou"]
[BlackTeam "Polabiny III"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 c5 2. Nc3 a6 3. d3 b5 4. Nf3 Bb7 5. Be3 d6 6. Qd2 Nf6 7. g3 e6 8. Bg2 Be7 9. 0-0 0-0 10. Rad1 Nbd7 11. h3 b4 12. Ne2 a5 13. Nh2 a4 14. f4 Qc7 15. Rfe1 d5 16. e5 d4 17. Bf2 Bxg2 18. Kxg2 Nd5 1/2-1/2

[Event "CZE-chT2D 1516"]
[Site "Czech Republic"]
[Date "2016.02.21"]
[Round "8.8"]
[White "Luzik, Libor"]
[Black "Cach, Ondrej"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "1682"]
[BlackElo "1701"]
[PlyCount "44"]
[EventDate "2015.10.18"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Velke Losiny"]
[BlackTeam "Polabiny III"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bd3 Nd7 8. Be3 Nc5 9. Bxc5 dxc5 10. 0-0 0-0 11. Re1 Bd6 12. Qe2 Bd7 13. Ne5 g6 14. Qf3 Bxe5 15. Rxe5 Bc6 16. Qe3 b6 17. Qh6 Qf6 18. Re3 Rae8 19. Rae1 Rxe3 20. Rxe3 Re8 21. Rxe8+ Bxe8 22. Qe3 Bd7 1/2-1/2

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2016.01.23"]
[Round "6.3"]
[White "Cach, Ondrej"]
[Black "Koukal, Ondrej"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "1576"]
[BlackElo "1540"]
[PlyCount "46"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny U18 II"]
[BlackTeam "Brno Duras U18"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 d6 2. d4 g6 3. h3 Bg7 4. Nf3 Nf6 5. Nc3 0-0 6. Be3 c6 7. a4 Qc7 8. Bd3 Nbd7 9. 0-0 Rd8 10. Qe2 e5 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Bc4 Qe7 14. Rfd1 Be6 15. Rxd8+ Rxd8 16. Bxe6 Qxe6 17. Bxa7 Bh6 18. Be3 Bxe3 19. Qxe3 Rd4 20. f3 Qd6 21. Qe1 Kg7 22. Rd1 Qb4 23. Rb1 Qd6 1/2-1/2

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2016.01.23"]
[Round "7.3"]
[White "Vavrinkova, Eliska"]
[Black "Cach, Ondrej"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "1739"]
[BlackElo "1576"]
[PlyCount "100"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Brno Lokomotiva U18"]
[BlackTeam "Polabiny U18 II"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. cxd5 exd5 5. Nc3 Be7 6. Bg5 0-0 7. Qc2 c6 8. e3 Be6 9. Bd3 h6 10. Bh4 Nbd7 11. 0-0 Re8 12. Rab1 a5 13. a3 Qc7 14. Bg3 Bd6 15. Nb5 cxb5 16. Qxc7 Bxc7 17. Bxc7 b4 18. axb4 axb4 19. Bd6 b3 20. Nd2 b6 21. Nxb3 Ne4 22. Bxe4 dxe4 23. Nd2 f5 24. Ra1 Nf6 25. Rxa8 Rxa8 26. Rc1 b5 27. b4 Ra2 28. Nf1 Rb2 29. f3 exf3 30. gxf3 Bd5 31. Rc8+ Kh7 32. Ng3 Bxf3 33. Nxf5 Bg4 34. Rc5 Ne4 35. Rxb5 Bxf5 36. Rxf5 Nxd6 37. Rd5 Nc4 38. e4 Rxb4 39. e5 Rb7 40. Rc5 Nd2 41. Rc3 Kg6 42. d5 Kf5 43. e6 Ke5 44. Re3+ Kd6 45. Kf2 Nc4 46. Rd3 Ne5 47. Rd4 Ng6 48. Rg4 Nf8 49. Rd4 Nh7 50. Re4 Nf6 0-1

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2015.11.27"]
[Round "5.1"]
[White "Cach, Ondrej"]
[Black "Pulpan, Matej"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1576"]
[BlackElo "1937"]
[PlyCount "70"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny U18 II"]
[BlackTeam "Polabiny U18"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. h3 0-0 5. e3 d6 6. Bd3 Nbd7 7. c3 Re8 8. 0-0 e5 9. Bh2 e4 10. Bc2 exf3 11. Qxf3 d5 12. Nd2 c6 13. Rfe1 Nb6 14. Rad1 Be6 15. b3 Rc8 16. e4 dxe4 17. Nxe4 Nxe4 18. Bxe4 Bd5 19. Bxd5 Qxd5 20. Qd3 Rxe1+ 21. Rxe1 c5 22. Be5 cxd4 23. Bxd4 Rd8 24. Re4 Qc6 25. Qe3 Nd5 26. Qe1 Nxc3 27. Bxc3 Bxc3 28. Qe3 Bg7 29. Rc4 Qb6 30. Qe7 Rd1+ 31. Kh2 Qd6+ 32. Qxd6 Rxd6 33. Rc8+ Bf8 34. Rc7 Rd2 35. Rxb7 Bd6+ 0-1

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2015.10.04"]
[Round "3.3"]
[White "Cach, Ondrej"]
[Black "Filip, Tomas"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1576"]
[BlackElo "1932"]
[PlyCount "66"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny U18 II"]
[BlackTeam "Stare Mesto U18"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. Be3 Be7 9. 0-0 0-0 10. f4 Qc7 11. f5 Bc4 12. Bxc4 Qxc4 13. Qd3 Qc7 14. Rad1 Nbd7 15. a4 Nb6 16. Nd2 Rfd8 17. a5 Nbd7 18. b4 Rac8 19. Nd5 Nxd5 20. Qxd5 Nf6 21. Qd3 Qxc2 22. Qxc2 Rxc2 23. Bg5 h6 24. Bh4 Rb2 25. Bxf6 Bxf6 26. Nc4 Rxb4 27. Nd2 d5 28. Rb1 Be7 29. Nf3 f6 30. exd5 Rxd5 31. Rxb4 Bxb4 32. Rb1 Rb5 33. Nh4 Bc5+ 0-1

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2015.10.04"]
[Round "4.3"]
[White "Kuchar, Matej"]
[Black "Cach, Ondrej"]
[Result "1/2-1/2"]
[ECO "C49"]
[WhiteElo "1875"]
[BlackElo "1576"]
[PlyCount "94"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Frydek Mistek U18"]
[BlackTeam "Polabiny U18 II"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bb4 5. d3 d6 6. h3 0-0 7. 0-0 Bxc3 8. bxc3 Qe7 9. Re1 Nd8 10. Ba3 c6 11. Ba4 b5 12. Bb3 a5 13. d4 c5 14. Bd5 Nxd5 15. exd5 b4 16. Bb2 bxc3 17. Bxc3 cxd4 18. Bxd4 Qf6 19. Bb2 Nb7 20. Ba3 Bf5 21. Rb1 Ra7 22. Qd2 Rc8 23. Qe3 Rca8 24. Rb2 h6 25. Reb1 Nd8 26. Rb6 Rd7 27. Qc3 Qe7 28. Re1 f6 29. Qd2 a4 30. Nd4 Bg6 31. Nb5 Nf7 32. Rc6 Qd8 33. Qb4 Rb7 34. Qc4 Rd7 35. Rb1 Kh7 36. Rb4 Kg8 37. Rxa4 Rxa4 38. Qxa4 Kh7 39. Qb4 Rb7 40. Qa4 Rd7 41. Qa6 Qb8 42. Bb4 Be4 43. c4 Bg6 44. a3 Bd3 45. Rc8 Qb7 46. Qxb7 Rxb7 47. Rc6 Bxc4 1/2-1/2

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2015.10.03"]
[Round "1.3"]
[White "Cach, Ondrej"]
[Black "Horvath, Tomas"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "1576"]
[BlackElo "1932"]
[PlyCount "130"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Polabiny U18 II"]
[BlackTeam "Orlova Slavia U18"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. d3 h6 6. 0-0 d6 7. Qe2 0-0 8. Bxc6 bxc6 9. Nd1 Qe7 10. Be3 Bb6 11. Bxb6 axb6 12. c4 Re8 13. Nc3 Nh5 14. g3 Bg4 15. Qe3 Qf6 16. Nh4 Nf4 17. Ng2 Nh3+ 18. Kh1 Bf3 19. Ne2 d5 20. Ng1 Nxg1 21. Kxg1 dxe4 22. dxe4 Bxg2 23. Kxg2 Red8 24. b3 Rd4 25. Qe2 Qg6 26. f3 Rad8 27. Rfd1 Qd6 28. Rxd4 Qxd4 29. Rf1 Kf8 30. Rf2 Ke7 31. Qc2 f6 32. h3 Qd3 33. b4 Qa3 34. Qb2 Qxb2 35. Rxb2 Rd3 36. Rc2 g6 37. Kf2 f5 38. exf5 gxf5 39. g4 Kf6 40. h4 fxg4 41. fxg4 Rh3 42. g5+ hxg5 43. hxg5+ Kxg5 44. Kg2 Rd3 45. Kf2 Kf4 46. Ke2 Rh3 47. Kf1 e4 48. Rf2+ Ke3 49. Rf7 Rh1+ 50. Kg2 Rc1 51. Rxc7 Rxc4 52. a4 Rxb4 53. Rxc6 Kd3 54. Rd6+ Ke2 55. Rc6 e3 56. Rg6 Ke1 57. Kf3 e2 58. Re6 Rb3+ 59. Kg2 Rb2 60. Rd6 b5 61. axb5 Rxb5 62. Re6 Rb8 63. Kf3 Rf8+ 64. Ke3 Kf1 65. Kd2 Rd8+ 0-1

[Event "CZE-chT U18 Extraliga Ost 1516"]
[Site "Czech Republic"]
[Date "2015.10.03"]
[Round "2.3"]
[White "Ochmyt, Jakub"]
[Black "Cach, Ondrej"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "1641"]
[BlackElo "1576"]
[PlyCount "113"]
[EventDate "2015.10.03"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]
[WhiteTeam "Orlova Slavia U18 II"]
[BlackTeam "Polabiny U18 II"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 0-0 6. Nf3 b6 7. cxd5 exd5 8. Rc1 Bf5 9. Be2 Nbd7 10. 0-0 c6 11. Re1 Re8 12. a3 Qc7 13. Bf4 Qb7 14. Qa4 b5 15. Qb3 Nh5 16. Be5 Nhf6 17. Bf1 a5 18. a4 b4 19. Bxf6 Bxf6 20. Ne2 Rac8 21. Nf4 Rc7 22. Bd3 Bg4 23. Kh1 Bxf3 24. gxf3 g6 25. Qc2 c5 26. Bb5 c4 27. Rg1 c3 28. Bxd7 Rxd7 29. bxc3 Rc7 30. Qb2 Rec8 31. cxb4 Rxc1 32. Rxc1 Rxc1+ 33. Qxc1 axb4 34. Qb2 b3 35. Nd3 Be7 36. Kg2 Bd6 37. Nc1 Qe7 38. Ne2 Qb7 39. Nc1 Qe7 40. Ne2 Qb7 41. Nc3 Qe7 42. f4 g5 43. f5 Bb4 44. Qxb3 Bxc3 45. Qxc3 Qe4+ 46. f3 Qxf5 47. a5 g4 48. f4 Qe4+ 49. Kg1 Qb1+ 50. Kf2 Qb7 51. Kg3 f5 52. Qc2 Qd7 53. a6 Qe6 54. Qd3 Qh6 55. Kg2 Qh3+ 56. Kg1 g3 57. Qe2 1/2-1/2

[Event "CZE-chTE U20 1314"]
[Site "Czech Republic"]
[Date "2013.12.07"]
[Round "5.6"]
[White "Cach, Ondrej"]
[Black "Zejdlik, Erik"]
[Result "1-0"]
[ECO "B73"]
[WhiteElo "1449"]
[BlackElo "1320"]
[PlyCount "49"]
[EventDate "2013.10.12"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Polabiny (U20)"]
[BlackTeam "Polabiny (U20) II"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. h3 0-0 9. 0-0 Bd7 10. Qd2 a6 11. Rad1 Qc8 12. Rfe1 Re8 13. f4 Nxd4 14. Bxd4 Bc6 15. e5 dxe5 16. fxe5 Ne4 17. Nxe4 Bxe4 18. c3 Qe6 19. b3 Bxe5 20. Bc4 Qf5 21. Rf1 Bxd4+ 22. Qxd4 Red8 23. Qxd8+ Rxd8 24. Rxd8+ Kg7 25. Rxf5 1-0

[Event "Czech Fed-ch U14"]
[Site "Hrdonov"]
[Date "2013.11.02"]
[Round "9"]
[White "Cach, Ondrej"]
[Black "Vitak, Jiri"]
[Result "1/2-1/2"]
[ECO "A03"]
[WhiteElo "1449"]
[BlackElo "1579"]
[PlyCount "85"]
[EventDate "2013.10.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. f4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc6 6. Bb5 Bd7 7. 0-0 Bd6 8. d3 a6 9. Bxc6 Bxc6 10. Nbd2 Qc7 11. g3 0-0-0 12. c4 Kb8 13. Ne5 Rdg8 14. Ndf3 Be8 15. Rc1 Nd7 16. cxd5 exd5 17. Rf2 f6 18. Nxd7+ Qxd7 19. d4 cxd4 20. Qxd4 Bf7 21. Rd2 Rd8 22. Qb6 Bc7 23. Qc5 Bd6 24. Qb6 Rc8 25. Rxc8+ Rxc8 26. Bd4 Rc6 27. Qa5 Bc7 28. Qa3 Bd6 29. Qb2 Qc7 30. Kf2 Bb4 31. Re2 Bg6 32. a3 Bd6 33. b4 Rc2 34. Rxc2 Qxc2+ 35. Qxc2 Bxc2 36. Bb6 Bc7 37. Bc5 b6 38. Bf8 g6 39. Nd4 Ba4 40. Ne6 Bd7 41. Nxc7 Kxc7 42. Bg7 f5 43. Ke2 1/2-1/2

[Event "Czech Fed-ch U14"]
[Site "Hrdonov"]
[Date "2013.10.31"]
[Round "7"]
[White "Cach, Ondrej"]
[Black "Steinbauer, Filip"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1449"]
[BlackElo "1604"]
[PlyCount "160"]
[EventDate "2013.10.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. dxe5 dxe5 6. Bc4 Be7 7. 0-0 0-0 8. Re1 c6 9. Be3 Ng4 10. a3 Nxe3 11. Rxe3 b5 12. Ba2 h6 13. Rd3 Qc7 14. Qd2 Nc5 15. Re3 Rd8 16. Qe2 a5 17. Ne1 Ba6 18. Rg3 Bh4 19. Rh3 Bf6 20. b4 axb4 21. axb4 Nd7 22. Qh5 Nb6 23. Rg3 Kf8 24. Nd3 Bc8 25. Re1 Qe7 26. Rf3 Be6 27. Bxe6 Qxe6 28. Nc5 Qc4 29. Rb1 Nd7 30. Nb7 Rdb8 31. Nd6 Qe6 32. Nf5 Nb6 33. Ne2 Nc4 34. Rd1 Nd2 35. Re3 Nc4 36. Rb3 Rd8 37. Rxd8+ Bxd8 38. g3 Kg8 39. Qg4 Qf6 40. Rd3 Bb6 41. c3 Kh7 42. Qh4 Qg6 43. Ne7 Qe6 44. Nf5 Ra2 45. Kf1 Nd2+ 46. Kg2 Nc4 47. Kf1 Nd2+ 48. Kg2 Nc4 49. Kf1 Ra1+ 50. Kg2 Ra2 51. Kf1 Nd2+ 52. Kg2 Qc4 53. Rd6 Qxe4+ 54. Qxe4 Nxe4 55. Rxc6 Rxe2 56. Kf3 Rxf2+ 57. Kxe4 Ba7 58. h4 g6 59. Nd6 Re2+ 60. Kd5 Bf2 61. Nxb5 Bxg3 62. Rc7 e4 63. Rxf7+ Kg8 64. Rf6 Kg7 65. Re6 e3 66. Kd4 Bxh4 67. Rxe3 Bf2 68. Kd5 Bxe3 69. c4 h5 70. c5 Bxc5 71. bxc5 h4 72. Nd4 Rd2 73. Ke4 h3 74. Nf3 h2 75. Nxh2 Rxh2 76. Kd5 g5 77. c6 g4 78. c7 Rh8 79. Ke4 g3 80. Kf3 Rc8 0-1

[Event "Czech Fed-ch U14"]
[Site "Hrdonov"]
[Date "2013.10.30"]
[Round "6"]
[White "Sustr, Dominik"]
[Black "Cach, Ondrej"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "1580"]
[BlackElo "1449"]
[PlyCount "104"]
[EventDate "2013.10.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bb4 5. d3 0-0 6. 0-0 d6 7. Bg5 Bxc3 8. bxc3 Qe7 9. Qb1 Nd8 10. Re1 Rb8 11. Qb2 Be6 12. Bb3 Bxb3 13. cxb3 Ne6 14. Bh4 Nf4 15. Rad1 Ng6 16. Bg3 Nh5 17. Rd2 Nhf4 18. Qa3 a6 19. Bxf4 Nxf4 20. g3 Ne6 21. Re3 f5 22. Nxe5 fxe4 23. dxe4 Ng5 24. f4 Rbe8 25. Nd3 Qf6 26. Qb4 b5 27. Nf2 Ne6 28. f5 Nc5 29. Qd4 Qg5 30. Nh3 Qh5 31. Nf4 Qf7 32. b4 Nd7 33. Ne6 Rxe6 34. Qa7 Ne5 35. Rd1 Nc4 36. Re2 Re5 37. Qxa6 Qh5 38. Rde1 d5 39. Qxb5 Nd6 40. Qa6 Nxe4 41. c4 Qxf5 42. cxd5 Nd2 43. Rxe5 Nf3+ 44. Kh1 Nxe5 45. Qe6+ Qxe6 46. dxe6 Nd3 47. e7 Nxe1 48. exf8Q+ Kxf8 49. b5 Nc2 50. a4 Nd4 51. h4 Ne2 52. Kg2 Nc3 0-1

[Event "Czech Fed-ch U14"]
[Site "Hrdonov"]
[Date "2013.10.28"]
[Round "3"]
[White "Stanek, Ondrej"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1584"]
[BlackElo "1449"]
[PlyCount "45"]
[EventDate "2013.10.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. d4 d5 7. Bd3 Bd6 8. 0-0 0-0 9. Bg5 Be6 10. Ne5 Nbd7 11. f4 c5 12. Nb5 Bb8 13. Nxd7 Bxd7 14. dxc5 Qe7 15. Nd4 Qxc5 16. Bxf6 gxf6 17. Kh1 Qc8 18. Qh5 Re8 19. Qxh7+ Kf8 20. Rae1 Be5 21. fxe5 Ke7 22. e6 Kd8 23. Qxf7 1-0

[Event "Czech Fed-ch U14"]
[Site "Hrdonov"]
[Date "2013.10.26"]
[Round "1"]
[White "Kadlec, Daniel"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1741"]
[BlackElo "1449"]
[PlyCount "69"]
[EventDate "2013.10.26"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Be3 Bd6 7. c4 Bb4+ 8. Nbd2 Bxd2+ 9. Nxd2 Nxd2 10. Qxd2 Be6 11. c5 0-0 12. Bd3 Re8 13. 0-0 Nc6 14. a3 b6 15. Rac1 Na5 16. Qc3 Re7 17. Bf4 Nb7 18. Ba6 Na5 19. Qg3 Nc4 20. Bg5 Qd7 21. Bf6 g6 22. Qg5 Kf8 23. Qh6+ Ke8 24. Qg7 Kd8 25. Qf8+ Qe8 26. Bxe7+ Kd7 27. Qxe8+ Rxe8 28. Bb5+ c6 29. Bxc4 Rxe7 30. Bd3 bxc5 31. Rxc5 Kd6 32. Rfc1 Bd7 33. Kf1 f5 34. Ra5 Be8 35. Re1 1-0

[Event "Kouty nad Desnou op-N"]
[Site "Kouty nad Desnou"]
[Date "2013.03.10"]
[Round "2"]
[White "Cach, Ondrej"]
[Black "Novak, Martin"]
[Result "0-1"]
[ECO "B73"]
[WhiteElo "1460"]
[BlackElo "1656"]
[PlyCount "66"]
[EventDate "2013.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. Qd2 Re8 10. f4 a6 11. f5 Qc7 12. Kh1 b5 13. fxg6 hxg6 14. Nxc6 Qxc6 15. e5 dxe5 16. a4 Bb7 17. Rf2 b4 18. Na2 Ne4 19. Bf3 Nxf2+ 20. Bxf2 e4 21. Bg4 Red8 22. Qxb4 Bf6 23. Qe1 e3 24. Bf3 exf2 25. Qxf2 Qc7 26. c3 Bxf3 27. Qxf3 Rab8 28. Nb4 Rd6 29. Qf1 Qb6 30. Rd1 Rxd1 31. Qxd1 Rd8 32. Qe2 a5 33. Nd3 Qd6 0-1

[Event "CZE-chTE U20 1213"]
[Site "Czech Republic"]
[Date "2012.11.21"]
[Round "5.5"]
[White "Cach, Ondrej"]
[Black "Hofman, Oskar"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1462"]
[BlackElo "1553"]
[PlyCount "96"]
[EventDate "2012.10.06"]
[EventType "team-tourn"]
[EventRounds "11"]
[EventCountry "CZE"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Polabiny (U20) II"]
[BlackTeam "Polabiny (U20)"]
[WhiteTeamCountry "CZE"]
[BlackTeamCountry "CZE"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. h3 Ne7 6. Nf3 Bf5 7. Be3 Nd7 8. Be2 c6 9. 0-0 Qc7 10. Nbd2 0-0-0 11. c3 h6 12. Re1 g5 13. Nh2 Bxh2+ 14. Kh1 Bd6 15. Bg4 Rde8 16. Bxf5 Nxf5 17. Qf3 Nxe3 18. Rxe3 Bf4 19. Rxe8+ Rxe8 20. Nb3 Nf6 21. g3 g4 22. hxg4 Bg5 23. Qf5+ Nd7 24. f4 Be7 25. Qxf7 Qd8 26. Re1 Nf6 27. g5 hxg5 28. fxg5 Ne4 29. Kg2 Nxg5 30. Qf5+ Qd7 31. g4 Qxf5 32. gxf5 Kd7 33. f6 Bd6 34. Rf1 b6 35. a4 Re2+ 36. Kg1 Rxb2 37. Nc1 Rb1 38. f7 Bf8 39. Ne2 Rxf1+ 40. Kxf1 Nxf7 41. Nf4 Ng5 42. Ng6 Bd6 43. Nh4 Ne4 44. Nf5 Nxc3 45. Ne3 Nxa4 46. Nc2 b5 47. Na1 Ba3 48. Nb3 Bb2 0-1

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.27"]
[Round "9"]
[White "Pastrnek, Michal"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "D05"]
[BlackElo "1462"]
[PlyCount "135"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 Be7 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. Ne5 c5 10. f4 Nxe5 11. fxe5 Nd7 12. Rf3 c4 13. Be2 Rc8 14. c3 Re8 15. Rh3 cxb3 16. axb3 a5 17. Bd3 Nf8 18. Bxh7+ Nxh7 19. Qh5 f5 20. Qxh7+ Kf7 21. Qh5+ Kg8 22. Rf1 Ba6 23. Rf2 Bd3 24. Qh7+ Kf7 25. Qh5+ Kg8 26. Qd1 g6 27. Nf1 Bxf1 28. Rxf1 Kg7 29. Qe2 Rh8 30. Rxh8 Qxh8 31. Qb5 Qd8 32. Qd3 Qd7 33. Rc1 b5 34. Ra1 a4 35. bxa4 bxa4 36. Qa6 Bg5 37. Qxa4 Qxa4 38. Rxa4 Bxe3+ 39. Kf1 Bd2 40. Ra3 Bg5 41. Ra7+ Kf8 42. Ba3+ Kg8 43. Bb4 Bd2 44. Ra3 Rc6 45. Ke2 Bc1 46. Ra2 Bg5 47. Kd3 Kh7 48. Ra5 Kh6 49. Rc5 Ra6 50. Ra5 Rxa5 51. Bxa5 Bf4 52. h3 Kh5 53. Bd8 Bg5 54. Bxg5 Kxg5 55. c4 dxc4+ 56. Kxc4 Kf4 57. Kc5 Ke4 58. Kd6 Kxd4 59. Kxe6 Ke4 60. Kd6 Kf4 61. e6 Kg3 62. e7 Kxg2 63. e8Q g5 64. Qg6 f4 65. Qxg5+ Kf3 66. Ke5 Kf2 67. Qxf4+ Kg1 68. Qd2 1-0

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.26"]
[Round "8"]
[White "Pavelka, Hubert Jan"]
[Black "Cach, Ondrej"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "1617"]
[BlackElo "1462"]
[PlyCount "91"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Nf3 d6 4. Nxd4 Nf6 5. Nc3 Be7 6. Bc4 0-0 7. 0-0 b6 8. Re1 Bb7 9. Nf3 Nbd7 10. Nd5 Nc5 11. Nxe7+ Qxe7 12. Nd4 Qd7 13. f3 d5 14. exd5 Bxd5 15. Bxd5 Qxd5 16. Ne2 Rfe8 17. Nc3 Qxd1 18. Rxd1 Rad8 19. Rxd8 Rxd8 20. Bg5 c6 21. Bxf6 gxf6 22. Rd1 Rxd1+ 23. Nxd1 Ne6 24. Kf2 Nd4 25. Ne3 Kf8 26. c3 Ne6 27. g3 Nc5 28. Ke2 Na4 29. Nd1 b5 30. Kd3 Ke7 31. b3 Nc5+ 32. Kd2 Nd7 33. Ne3 Ne5 34. Ke2 Ke6 35. f4 Nd7 36. c4 f5 37. cxb5 cxb5 38. Nc2 a6 39. Nb4 Nc5 40. Ke3 a5 41. Nc6 a4 42. Nd4+ Kf6 43. bxa4 bxa4 44. Nf3 Na6 45. Nd4 Nc7 46. Kd3 1/2-1/2

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.25"]
[Round "7"]
[White "Cach, Ondrej"]
[Black "Zahradnik, Ales"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "1462"]
[PlyCount "65"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Ne7 6. Nbc3 c6 7. Bf4 Bf5 8. f3 0-0 9. g4 Bxd3 10. Qxd3 Bxf4 11. Nxf4 Ng6 12. Nxg6 fxg6 13. 0-0-0 Nd7 14. h4 Qc7 15. Rdf1 Qf4+ 16. Kb1 Rae8 17. Nd1 Nb6 18. b3 a5 19. h5 g5 20. h6 g6 21. Qc3 Re2 22. Re1 Rxe1 23. Rxe1 Qxf3 24. Qxa5 Na8 25. Ne3 Re8 26. Nxd5 Rxe1+ 27. Qxe1 cxd5 28. Qe5 Qf7 29. Qb8+ Qf8 30. Qxb7 Kh8 31. Qxd5 Nb6 32. Qe5+ Kg8 33. Qe6+ 1-0

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.24"]
[Round "6"]
[White "Stanek, Ondrej"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "1549"]
[BlackElo "1462"]
[PlyCount "35"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Nxe5 d5 5. Bd3 Be7 6. 0-0 0-0 7. Nc3 Nxc3 8. bxc3 Be6 9. Rb1 b6 10. Qe2 c5 11. f4 c4 12. Bxh7+ Kxh7 13. Qh5+ Kg8 14. f5 Bc8 15. Ng6 fxg6 16. fxg6 Rxf1+ 17. Kxf1 Bf6 18. Ba3 1-0

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.23"]
[Round "5"]
[White "Cach, Ondrej"]
[Black "Sucharda, Tomas"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1462"]
[PlyCount "59"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Be2 Bf5 6. 0-0 c6 7. d3 Qc7 8. Be3 e6 9. a3 Bd6 10. h3 Nbd7 11. Re1 0-0 12. Qd2 Rfe8 13. Rad1 Rad8 14. b4 b5 15. Nd4 Bg6 16. Bf3 Ne5 17. Nce2 a6 18. Bg5 c5 19. bxc5 Bxc5 20. Qc3 Qb6 21. Be3 Nd5 22. Bxd5 Rxd5 23. Rb1 Red8 24. Rb3 Bh5 25. Nf4 Bxd4 26. Nxd5 Rxd5 27. Bxd4 Rxd4 28. Rxe5 g6 29. g4 Rf4 30. Rc5 1-0

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.23"]
[Round "4"]
[White "Havelka, Frantisek"]
[Black "Cach, Ondrej"]
[Result "0-1"]
[ECO "C42"]
[BlackElo "1462"]
[PlyCount "114"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Qxe7+ Bxe7 8. Bg5 0-0 9. Nc3 c6 10. Be2 Be6 11. 0-0 Nbd7 12. Rfe1 Rfe8 13. d4 h6 14. Bh4 Rad8 15. Rad1 Nd5 16. Nxd5 Bxd5 17. Bxe7 Rxe7 18. c4 Bxf3 19. Bxf3 Rde8 20. Rxe7 Rxe7 21. Kf1 Nb6 22. c5 dxc5 23. dxc5 Nc4 24. b3 Ne5 25. Be4 g6 26. Bf3 Nd7 27. b4 Ne5 28. Re1 Kf8 29. Bd1 Nd3 30. Rxe7 Kxe7 31. a3 f6 32. Bc2 Ne5 33. f4 Nc4 34. Bxg6 f5 35. Bh5 Nxa3 36. Be2 Nc2 37. b5 Nd4 38. Bd3 cxb5 39. Bb1 b4 40. Kf2 Ke6 41. Ke3 Kd5 42. Kd3 a5 43. h3 a4 44. Kd2 b3 45. Kc1 a3 46. c6 bxc6 47. g4 fxg4 48. hxg4 Ne2+ 49. Kd1 Nc3+ 50. Kc1 Nxb1 51. Kxb1 a2+ 52. Ka1 c5 53. f5 c4 54. f6 c3 55. f7 c2 56. Kb2 a1Q+ 57. Kxa1 c1Q# 0-1

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.22"]
[Round "3"]
[White "Cach, Ondrej"]
[Black "Vitak, Jiri"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "1462"]
[BlackElo "1519"]
[PlyCount "126"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 d6 5. d3 Be7 6. 0-0 0-0 7. Bxc6 bxc6 8. Qe2 Bg4 9. Nd1 Nh5 10. h3 Be6 11. Nxe5 dxe5 12. Qxh5 f6 13. Ne3 Rb8 14. Qf3 Qd4 15. Nf5 Bxf5 16. Qxf5 Rf7 17. Rb1 Qc5 18. c3 g6 19. Qg4 Qa5 20. Qe6 Bd6 21. Be3 c5 22. f4 Rbf8 23. fxe5 Bxe5 24. d4 cxd4 25. cxd4 Bd6 26. Bh6 Qb6 27. Qc4 Re8 28. Kh1 Bf8 29. Bg5 Bg7 30. e5 Re6 31. Be3 Qa6 32. Qd5 fxe5 33. Rxf7 Kxf7 34. dxe5 Bxe5 35. Bc5 Bd6 36. Bxd6 Qxd6 37. Qxd6 Rxd6 38. Rc1 c6 39. Rc4 Ke7 40. Rh4 h5 41. Ra4 Rd7 42. Ra6 Kd6 43. b4 Kd5 44. Kh2 Rf7 45. Kg3 g5 46. Ra5+ Kc4 47. Rxg5 Kxb4 48. Rxh5 c5 49. Rh8 Rc7 50. Rb8+ Ka3 51. Rb3+ Kxa2 52. Rc3 Kb2 53. Rc4 Kb3 54. Rc1 c4 55. h4 a5 56. Rb1+ Ka2 57. Rc1 a4 58. h5 Kb2 59. Rf1 c3 60. h6 c2 61. Rf2 a3 62. Kh4 a2 63. Rf1 a1Q 0-1

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.21"]
[Round "2"]
[White "Cach, Ondrej"]
[Black "Sykora, Tomas"]
[Result "1-0"]
[ECO "C48"]
[WhiteElo "1462"]
[PlyCount "81"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Bxc6 dxc6 6. 0-0 Bg4 7. d3 Be7 8. Qe2 0-0 9. Nd1 Re8 10. Ne3 Bh5 11. Nf5 Bg6 12. Ng3 h6 13. Nxe5 Bh7 14. Ng4 Nxg4 15. Qxg4 Qc8 16. Qf3 Qe6 17. Nh5 Bg6 18. Nf4 Qf6 19. Re1 Bd6 20. Qg4 Bf5 21. Qf3 Bg6 22. c3 Bxf4 23. Qxf4 Qd6 24. Qf3 Rad8 25. d4 Qd5 26. Bxh6 Bxe4 27. Qg3 Bg6 28. Bg5 f6 29. Bxf6 gxf6 30. Qxg6+ Kf8 31. Qxf6+ Kg8 32. Re5 Rxe5 33. Qxe5 Qf7 34. Qg5+ Kh7 35. Qxd8 Qe6 36. Qxc7+ Kg6 37. Qg3+ Kf7 38. Qf4+ Kg6 39. h3 Qe2 40. Qg4+ Qxg4 41. hxg4 1-0

[Event "Czech Fed-ch U12"]
[Site "Hrdonov"]
[Date "2012.10.20"]
[Round "1"]
[White "Cernicek, Matyas"]
[Black "Cach, Ondrej"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "1462"]
[PlyCount "136"]
[EventDate "2012.10.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 151 Extra"]
[Source "ChessBase"]
[SourceDate "2012.12.18"]
[SourceVersion "1"]
[SourceVersionDate "2012.12.18"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bc4 Bb4 5. a3 Ba5 6. d3 d6 7. h3 0-0 8. b4 Bb6 9. Bg5 Be6 10. Ba2 Nd4 11. 0-0 c6 12. Rb1 Bxa2 13. Nxa2 Ne6 14. Bh4 Nf4 15. Nd2 Ng6 16. Bxf6 Qxf6 17. Qg4 Qf4 18. Qxf4 Nxf4 19. Nc4 Bc7 20. Nc3 f5 21. f3 fxe4 22. fxe4 Rf6 23. b5 cxb5 24. Nxb5 Raf8 25. Nd2 Ba5 26. Nf3 a6 27. Na7 Nxh3+ 28. gxh3 Rxf3 29. Rxf3 Rxf3 30. Kg2 Rf7 31. Nc8 Rc7 32. Nxd6 Rxc2+ 33. Kg1 b5 34. a4 b4 35. Nc4 Bc7 36. Rxb4 Kf8 37. Rb7 Bd8 38. Rb8 Ke8 39. Nxe5 Ke7 40. Nc4 Rc1+ 41. Kf2 Rc2+ 42. Ke3 Rh2 43. Rb7+ Ke6 44. Rxg7 Rxh3+ 45. Kf4 Rxd3 46. Rxh7 Rd4 47. Nb2 Bf6 48. Rh6 Kf7 49. a5 Rd6 50. Nc4 Rc6 51. Rh7+ Kg6 52. Ra7 Rxc4 53. Rxa6 Ra4 54. Kf3 Kg5 55. Ra7 Ra3+ 56. Ke2 Kf4 57. Ra6 Bc3 58. Kd3 Bxa5+ 59. Kc4 Rc3+ 60. Kb5 Bd8 61. Rc6 Re3 62. Rc4 Be7 63. Rd4 Ke5 64. Rd7 Bf6 65. Rc7 Kxe4 66. Rc4+ Bd4 67. Rc7 Rb3+ 68. Kc4 Rc3+ 0-1

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.25"]
[Round "9"]
[White "Sofiychuk, Anatoly"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C49"]
[WhiteElo "1682"]
[PlyCount "133"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. 0-0 0-0 6. d3 d6 7. h3 Bxc3 8. bxc3 Qe7 9. Ba3 Bd7 10. Qe2 h6 11. Rfe1 a6 12. Bc4 Be6 13. Bxe6 Qxe6 14. d4 Na7 15. dxe5 Nd7 16. exd6 cxd6 17. Nd4 Qf6 18. Rad1 Rfe8 19. Nf5 Nb5 20. Bb2 Nc5 21. f3 Na4 22. Ba1 Qg6 23. Qd3 Nc5 24. Qe3 Na3 25. Rxd6 Qxf5 26. exf5 Rxe3 27. Rxe3 Nc4 28. Rd5 Nxe3 29. Rxc5 Re8 30. Bb2 b5 31. Bc1 Nc4 32. Kf2 Kf8 33. Bf4 Na3 34. Bd6+ Kg8 35. Re5 Rxe5 36. Bxe5 Nc4 37. Bd4 f6 38. Ke2 Nd6 39. g4 h5 40. Bc5 Nb7 41. Bb4 h4 42. f4 Kf7 43. Kd3 g6 44. Kd4 gxf5 45. gxf5 a5 46. Bc5 a4 47. Bb4 Nd8 48. Kc5 Kg7 49. Kxb5 Nf7 50. Kxa4 Nh6 51. Kb5 Nxf5 52. Bc5 Ng3 53. a4 Ne2 54. Bd6 Nxc3+ 55. Kb4 Nd5+ 56. Kc5 Nc3 57. a5 Ne4+ 58. Kc6 Nf2 59. a6 Nxh3 60. a7 Ng1 61. a8Q Kh6 62. Qh8+ Kg6 63. Qg8+ Kh5 64. Qxg1 h3 65. f5 Kh4 66. Qg3+ Kh5 67. Qg6+ 1-0

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.24"]
[Round "8"]
[White "Cach, Ondrej"]
[Black "Akhvlediani, Irakli"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1845"]
[PlyCount "58"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Bd3 Bg4 6. f3 Bh5 7. Nge2 e6 8. 0-0 c6 9. Be3 Nbd7 10. Nf4 Bg6 11. Nxg6 hxg6 12. h3 Qc7 13. Bf2 Be7 14. Re1 0-0 15. Qd2 Rad8 16. Rad1 Rfe8 17. a3 e5 18. Bg3 Bd6 19. dxe5 Nxe5 20. Bxe5 Bxe5 21. Ne2 Bxb2 22. Rb1 Bxa3 23. Qc3 Bd6 24. Qb3 Bc5+ 25. Kh1 Nh5 26. Bxg6 Bf2 27. Bxh5 Bxe1 28. Rxe1 Rd5 29. Bg4 Rxe2 0-1

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.23"]
[Round "7"]
[White "Zhou, Yang Jian"]
[Black "Cach, Ondrej"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "1617"]
[PlyCount "98"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. 0-0 0-0 6. b3 d4 7. Bb2 c5 8. d3 Nc6 9. e3 e5 10. exd4 exd4 11. Re1 Re8 12. Ne5 Nxe5 13. Rxe5 Bd6 14. Rxe8+ Qxe8 15. Nd2 Rb8 16. Ne4 Nxe4 17. Bxe4 g6 18. Qd2 Bh3 19. Re1 Qd7 20. Re2 Re8 21. Qe1 b6 22. Bc1 Qg4 23. Qd1 Rxe4 24. f3 Qxf3 25. dxe4 Bg4 26. e5 Bxe5 27. Bf4 f6 28. Bxe5 fxe5 29. Qf1 Qxf1+ 30. Kxf1 Bxe2+ 31. Kxe2 e4 32. a3 a5 33. h3 Kf7 34. Kf2 d3 35. Ke3 Kf6 36. a4 Ke5 37. g4 g5 38. Kf2 Kf4 39. h4 gxh4 40. g5 e3+ 41. Ke1 Kf3 42. g6 hxg6 43. b4 axb4 44. a5 bxa5 45. Kf1 d2 46. Kg1 d1Q+ 47. Kh2 Qe2+ 48. Kh3 Qg2+ 49. Kxh4 Qg4# 0-1

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.22"]
[Round "6"]
[White "Cach, Ondrej"]
[Black "Vorkas, Antreas"]
[Result "1-0"]
[ECO "C77"]
[PlyCount "57"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 a6 5. Ba4 b5 6. Bb3 Be7 7. d3 d6 8. Bd5 Nxd5 9. Nxd5 Bg4 10. c3 0-0 11. 0-0 Bh4 12. Ne3 Bh5 13. Nf5 Bf6 14. Ng3 Bg4 15. h3 Be6 16. d4 Bc4 17. Re1 b4 18. d5 Na7 19. cxb4 Rb8 20. a4 Rxb4 21. Nd2 Bg5 22. Ra3 Bxd2 23. Qxd2 a5 24. Nf5 Nc8 25. Rg3 Qf6 26. Qh6 Qxh6 27. Bxh6 Rd8 28. Bxg7 Rd7 29. Nh6# 1-0

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.20"]
[Round "4"]
[White "Petersson, Baldur Teodor"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "1555"]
[PlyCount "61"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3 Nf6 6. Be2 Be7 7. Nc3 c6 8. Bf4 0-0 9. Qd2 Be6 10. h3 Nbd7 11. Nd4 Qb6 12. Nxe6 fxe6 13. 0-0 Rf7 14. Rab1 Raf8 15. Be3 Qa5 16. b4 Qc7 17. d4 a5 18. b5 c5 19. d5 exd5 20. Nxd5 Nxd5 21. Qxd5 Nf6 22. Qd1 Ne4 23. Qe1 b6 24. Bc4 Qd7 25. Bxf7+ Rxf7 26. a4 Rf6 27. f3 Rg6 28. fxe4 Qxh3 29. Qf2 Qe6 30. Qf5 Qc4 31. Qc8+ 1-0

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.19"]
[Round "3"]
[White "Cach, Ondrej"]
[Black "Bukia, Koka"]
[Result "0-1"]
[ECO "C01"]
[BlackElo "1643"]
[PlyCount "62"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. h3 c6 6. Nf3 Qc7 7. 0-0 Ne7 8. Be3 0-0 9. c3 Bf5 10. Qc2 Bxd3 11. Qxd3 Nd7 12. Re1 Ng6 13. Qd2 Nf6 14. Bg5 Ne4 15. Qc1 f6 16. Be3 f5 17. Ng5 Rae8 18. Nxe4 dxe4 19. Qd1 f4 20. Bc1 Re7 21. d5 Bc5 22. b4 Bd6 23. Qb3 Kh8 24. a3 f3 25. gxf3 exf3 26. Rxe7 Qxe7 27. Be3 Qd7 28. Kf1 Qxh3+ 29. Ke1 Nf4 30. Bxf4 Bxf4 31. Kd1 Qf1+ 0-1

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.18"]
[Round "2"]
[White "Akdogan, Alperen"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "1736"]
[PlyCount "58"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. e3 0-0 6. Bd3 b6 7. 0-0 Bb7 8. Ne5 Nbd7 9. f4 Nxe5 10. fxe5 Ne4 11. Qg4 Nxc3 12. bxc3 dxc4 13. Bxc4 c5 14. Bb2 Rc8 15. Rxf7 Rxf7 16. Qxe6 Qe8 17. Rf1 Kh8 18. Rxf7 Bg5 19. Qxe8+ Rxe8 20. Rxb7 Bxe3+ 21. Kf1 cxd4 22. cxd4 h6 23. e6 b5 24. Bxb5 Rxe6 25. Rb8+ Kh7 26. Bd3+ g6 27. Rb7+ Kg8 28. Bc4 Kf8 29. Bxe6 Bf4 1-0

[Event "EU-ch U12"]
[Site "Prague"]
[Date "2012.08.17"]
[Round "1"]
[White "Cach, Ondrej"]
[Black "Kazantsev, Nikita"]
[Result "0-1"]
[ECO "C48"]
[BlackElo "1837"]
[PlyCount "34"]
[EventDate "2012.08.17"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. d3 d6 6. 0-0 Bg4 7. Bxc6+ bxc6 8. Qe2 0-0 9. Nd1 Re8 10. Ne3 Bxe3 11. Qxe3 d5 12. c3 c5 13. exd5 Qxd5 14. Ng5 Rad8 15. Ne4 Qxd3 16. Nxf6+ gxf6 17. Qxc5 Qxf1+ 0-1

[Event "Kouty nad Desnou op-B"]
[Site "Kouty nad Desnou"]
[Date "2012.03.10"]
[Round "1"]
[White "Cach, Ondrej"]
[Black "Vystrcil, Martin"]
[Result "0-1"]
[ECO "B30"]
[BlackElo "1760"]
[PlyCount "88"]
[EventDate "2012.03.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. e4 c5 2. d3 Nc6 3. Nf3 g6 4. Be2 Bg7 5. 0-0 d6 6. Bd2 Bxb2 7. Bc3 Bxc3 8. Nxc3 Nf6 9. d4 cxd4 10. Nxd4 0-0 11. Qd2 Nxd4 12. Qxd4 Qc7 13. Rac1 Bd7 14. Bb5 Bxb5 15. Nxb5 Qa5 16. Nc3 Rac8 17. Nd5 Nxd5 18. Qxd5 Qxd5 19. exd5 Rc5 20. Rfe1 Re8 21. c4 Kf8 22. Re2 Rec8 23. Rec2 b5 24. Kf1 Rxc4 25. Rxc4 Rxc4 26. Ra1 Rd4 27. Ke2 Rxd5 28. a4 bxa4 29. Rxa4 a5 30. Ke3 Ke8 31. Ke4 Rc5 32. h3 Kd7 33. g4 Kc6 34. Kf3 Kb5 35. Rf4 f6 36. h4 a4 37. Re4 e5 38. Re1 a3 39. Rd1 a2 40. Ra1 Rc2 41. Ke3 Kb4 42. f3 Kb3 43. Kd3 d5 44. g5 f5 0-1

[Event "Pardubice op 19th"]
[Site "Pardubice"]
[Date "2008.07.12"]
[Round "3"]
[White "Halousek, Jakub"]
[Black "Cach, Ondrej"]
[Result "1-0"]
[ECO "C22"]
[PlyCount "43"]
[EventDate "2008.07.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CZE"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Nc3 Bb4 6. Bg5 Be7 7. Nf3 d6 8. Bb5 Bd7 9. 0-0 0-0 10. Bxf6 Bxf6 11. Qd2 Bxc3 12. Qxc3 a6 13. Ba4 Qe8 14. Rfe1 b5 15. Bb3 a5 16. Bd5 b4 17. Qd3 a4 18. Bxc6 Bxc6 19. Qd4 Rb8 20. Nh4 Qe7 21. Nf5 Qd7 22. Qxg7# 1-0

[Event "Pardubice op 19th"]
[Site "Pardubice"]
[Date "2008.07.11"]
[Round "2"]
[White "Cach, Ondrej"]
[Black "Plodik, Michal"]
[Result "0-1"]
[ECO "C65"]
[PlyCount "32"]
[EventDate "2008.07.10"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CZE"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. 0-0 Bc5 6. Nxe5 Nf6 7. d3 0-0 8. Bg5 h6 9. Bxf6 Qxf6 10. d4 Re8 11. Nc3 Bxd4 12. Qxd4 Rxe5 13. Rad1 d6 14. g3 Bh3 15. Rfe1 Qf3 16. Rf1 Qg2# 0-1

