[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.20"]
[Round "10"]
[White "Isajevsky, Anton"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "2403"]
[BlackElo "2364"]
[PlyCount "96"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 d5 5. Nc3 c6 6. Nh3 Bd6 7. 0-0 0-0 8. Qc2 Qe7 9. Bf4 Bxf4 10. Nxf4 dxc4 11. e4 e5 12. dxe5 Qxe5 13. h4 Na6 14. Rfe1 Nb4 15. Qa4 Qc5 16. a3 Ng4 17. Nd1 Nd3 18. Nxd3 cxd3 19. Qb3+ Kh8 20. Qxd3 f4 21. gxf4 Rxf4 22. Qg3 Rf8 23. Ne3 Rxf2 24. Rac1 Qb6 25. Bf3 Rxf3 26. Qxf3 Be6 27. Kh1 h5 28. Nxg4 Bxg4 29. Qg2 Qd8 30. Qf2 Qe7 31. Rc3 Rf8 32. Qg3 Rd8 33. Qh2 Qf6 34. Kg1 Rd4 35. Rce3 Qd8 36. Qg3 Rd6 37. Kh1 Kh7 38. b4 Rg6 39. Rg1 Qd4 40. Qf4 Rf6 41. Qg5 Rf2 42. Rg2 Rf1+ 43. Rg1 Rf2 44. Rg2 Qd1+ 45. Kh2 Rf1 46. Ree2 Rh1+ 47. Kg3 Rh3+ 48. Kf4 Qd6+ 0-1

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.19"]
[Round "9"]
[White "Sezdbekov, Ruslan"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2261"]
[BlackElo "2364"]
[PlyCount "116"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 e6 3. Nbc3 d5 4. exd5 exd5 5. d4 Nf6 6. Bg5 Nc6 7. Bxf6 Qxf6 8. Nxd5 Qd8 9. dxc5 Bxc5 10. Nec3 0-0 11. Be2 Qh4 12. 0-0 Rd8 13. Qc1 Nd4 14. Bd1 b6 15. g3 Qh3 16. Qg5 Ba6 17. Re1 h6 18. Qf4 Ne6 19. Qf3 Ng5 20. Qg2 Qxg2+ 21. Kxg2 Bb7 22. h4 Rxd5 23. Nxd5 Bxd5+ 24. f3 Ne6 25. c3 Rd8 26. b4 Be7 27. Bb3 Bxb3 28. axb3 Rd2+ 29. Kh3 Rd3 30. Rxa7 Bf6 31. c4 Rxb3 32. c5 bxc5 33. bxc5 Rxf3 34. Ra8+ Kh7 35. Ra7 Bd4 36. Kg4 Bxc5 37. Kxf3 Bxa7 38. Rd1 Bd4 39. Rb1 h5 40. Rb5 g6 41. Rd5 Kg7 42. Ra5 Bf6 43. Rd5 Nd4+ 44. Kg2 Kf8 45. Ra5 Nf5 46. Kh3 Ne3 47. Rb5 Be7 48. Ra5 Bd6 49. Ra6 Ke7 50. Ra4 f5 51. Ra1 Ng4 52. Kg2 Nf6 53. Ra7+ Nd7 54. Ra8 Nc5 55. Ra7+ Ke6 56. Rg7 Kf6 57. Ra7 Ne4 58. Ra6 Ke6 0-1

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.18"]
[Round "8"]
[White "Koziak, Vitali"]
[Black "Zhakshylykov, Erzhan"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2364"]
[BlackElo "2209"]
[PlyCount "91"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 Nbd7 8. 0-0 0-0 9. Re1 a5 10. exd5 cxd5 11. c4 b5 12. cxd5 a4 13. Bc2 Nxd5 14. Nxe5 Nb4 15. Nxd7 Bxd7 16. d4 Nxc2 17. Qxc2 Rc8 18. Qd3 Qc7 19. Ne4 Qc2 20. Qg3 Kh8 21. Nc5 Bc6 22. Qd3 Qxd3 23. Nxd3 Bd5 24. Nb4 Bc4 25. d5 Rfe8 26. f3 g5 27. Rxe8+ Rxe8 28. Rb1 Re5 29. Rd1 Re7 30. h4 h6 31. d6 Rd7 32. a3 Kg7 33. Na6 Kf6 34. Nc5 Rd8 35. hxg5+ hxg5 36. Kf2 Be6 37. Ke3 Rc8 38. d7 Rd8 39. g4 Ke5 40. Nxe6 Kxe6 41. Ke4 f6 42. Rd5 Rxd7 43. Rxd7 Kxd7 44. Kd5 Ke7 45. Kc5 f5 46. Kxb5 1-0

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.17"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Vlasenko, Miroslav"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2364"]
[BlackElo "2383"]
[PlyCount "54"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 0-0 6. Nf3 d6 7. 0-0 Qe8 8. Re1 Qf7 9. e4 fxe4 10. Nxe4 Nc6 11. Neg5 Qxc4 12. b3 Qb5 13. h3 Nb4 14. Rxe7 c6 15. Bf4 Nbd5 16. Rxg7+ Kxg7 17. Bxd6 h6 18. Qd2 Rh8 19. Ne5 hxg5 20. Qxg5 Bf5 21. g4 Ne4 22. Bxe4 Bxe4 23. f3 Qe2 24. fxe4 Qxe4 25. Kh2 Qc2+ 26. Kg3 Rxh3+ 27. Kxh3 Rh8+ 0-1

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.16"]
[Round "6"]
[White "Botiraliev, Abdumajid"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2001"]
[BlackElo "2364"]
[PlyCount "84"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[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 Nf6 5. Nc3 d6 6. g3 Nc6 7. Bg2 Bd7 8. 0-0 Be7 9. h3 0-0 10. Be3 Nxd4 11. Bxd4 Bc6 12. f4 Qc7 13. Qe2 a6 14. Kh2 b5 15. a3 Qb7 16. g4 Rfe8 17. g5 Nd7 18. Qf2 Bf8 19. f5 Ne5 20. Rad1 Nc4 21. b3 Nxa3 22. Rde1 b4 23. Nd1 exf5 24. Ne3 fxe4 25. Ng4 Re6 26. Bb2 Nb5 27. Qh4 Rg6 28. Rf5 Re8 29. Ref1 Re7 30. Qg3 Bd7 31. Ne3 Bxf5 32. Rxf5 Nc3 33. Bxc3 bxc3 34. Qg4 Rge6 35. Nd5 Re8 36. Kh1 Re5 37. Nxc3 d5 38. Ne2 Qb4 39. Rxe5 Qe1+ 40. Ng1 Rxe5 41. h4 Re6 42. Qf4 Bd6 0-1

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.14"]
[Round "5"]
[White "De Silva, LMST"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2433"]
[BlackElo "2364"]
[PlyCount "125"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[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 Nf6 5. Nc3 d6 6. Bd3 g6 7. 0-0 Bg7 8. Nb3 0-0 9. f4 Nc6 10. a3 b6 11. Qf3 Bb7 12. Be3 Rc8 13. Rad1 Ne7 14. Bf2 Rxc3 15. bxc3 Qa8 16. Rfe1 d5 17. Nd2 dxe4 18. Nxe4 Nfd5 19. Nd6 Bc6 20. Bb5 Bxc3 21. Rf1 Rd8 22. Bxc6 Qxc6 23. Ne4 Bg7 24. c3 Nf5 25. g4 Nd6 26. Nxd6 Rxd6 27. Rd3 Nxf4 28. Rxd6 Qxf3 29. Rd8+ Bf8 30. Rxf8+ Kxf8 31. Bc5+ bxc5 32. Rxf3 g5 33. Kf2 Ke7 34. c4 Kd6 35. Rb3 Kc7 36. a4 f5 37. gxf5 exf5 38. a5 h5 39. a6 Kc6 40. Rb7 Ne6 41. Rxa7 Nc7 42. Rb7 h4 43. Rb8 Nxa6 44. Rf8 g4 45. Rf6+ Kb7 46. Ke3 g3 47. h3 Nb4 48. Rxf5 Nc2+ 49. Kf4 Nd4 50. Rf7+ Kb6 51. Ke4 Ka5 52. Rh7 g2 53. Rg7 Kb4 54. Rxg2 Kxc4 55. Rg4 Kc3 56. Rxh4 Kd2 57. Rg4 Ne2 58. Kd5 Ke3 59. Kxc5 Nf4 60. h4 Kf3 61. Rg5 Nh3 62. Rg8 Nf4 63. Kd4 1-0

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.14"]
[Round "4"]
[White "Koziak, Vitali"]
[Black "Atabayev, Yusup"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2364"]
[BlackElo "2487"]
[PlyCount "43"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nc6 6. Be3 d6 7. Nc3 Nf6 8. Be2 0-0 9. 0-0 Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. Rab1 Nd7 14. Be3 Nc5 15. b3 Be5 16. a3 e6 17. b4 axb4 18. axb4 Qh4 19. g3 Bxg3 20. hxg3 Qxg3+ 21. Kh1 Qh3+ 22. Kg1 1/2-1/2

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.13"]
[Round "3"]
[White "Koziak, Vitali"]
[Black "Mosadeghpour, Masoud"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "2364"]
[BlackElo "2484"]
[PlyCount "106"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[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. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4 exd4 6. e5 dxc3 7. exf6 Qxf6 8. dxc3 Bc5 9. 0-0 0-0 10. Qg4 d6 11. Qg5 Qxg5 12. Bxg5 Bf5 13. Bd3 Bxd3 14. cxd3 d5 15. Rfe1 Rfe8 16. Kf1 f6 17. Bf4 c6 18. d4 Bf8 19. Rxe8 Rxe8 20. Re1 Ra8 21. Ke2 Kf7 22. Kd3 h5 23. b3 g5 24. Bd2 Bd6 25. h3 Rg8 26. c4 dxc4+ 27. bxc4 g4 28. h4 g3 29. f3 Rd8 30. a4 Bc5 31. Bc3 b6 32. Ke3 Bd6 33. Rb1 f5 34. a5 Bc7 35. axb6 axb6 36. Ra1 Rd7 37. Ra8 Bd8 38. Rc8 Rd6 39. Kf4 Bxh4 40. Kxf5 Rf6+ 41. Ke4 Bg5 42. d5 cxd5+ 43. cxd5 Rf4+ 44. Kd3 h4 45. Bd2 Rxf3+ 46. Ke4 Rf1 47. Bxg5 h3 48. gxh3 g2 49. Rc7+ Kg6 50. Be3 Re1 51. Rc6+ Kf7 52. Kf3 Rxe3+ 53. Kxg2 Rd3 1/2-1/2

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.12"]
[Round "2"]
[White "Abdyjapar, Asyl"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "D32"]
[WhiteElo "2302"]
[BlackElo "2364"]
[PlyCount "140"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Bd6 8. e3 Nf6 9. Qd1 0-0 10. Nf3 Qe7 11. Be2 Rd8 12. Bd2 Ng4 13. h3 Nge5 14. Nxe5 Bxe5 15. a3 Bf5 16. Qb3 Qg5 17. g4 Rxd2 18. Kxd2 Nd4 19. Qa4 Be6 20. h4 Nb3+ 21. Ke1 Bxc3+ 22. bxc3 Qe5 23. Rd1 Qxc3+ 24. Kf1 Nd2+ 25. Kg1 Bb3 26. Qd7 Bxd1 27. Bxd1 Ne4 28. Kg2 Nc5 29. Qe7 Qxa3 30. Bf3 Rf8 31. Rd1 Qc3 32. Rd8 Ne6 33. Rd7 b5 34. Rxa7 Qc5 35. Qxc5 Nxc5 36. Rc7 Ne6 37. Rb7 h6 38. Rxb5 Re8 39. Rb7 Nc5 40. Rc7 Ne4 41. Bxe4 Rxe4 42. Kf3 Ra4 43. h5 Kf8 44. Rc8+ Ke7 45. Rg8 Kf6 46. Kg3 Re4 47. Rb8 Re6 48. Kf4 Ra6 49. f3 Ra4+ 50. e4 g5+ 51. hxg6 Kxg6 52. Rb6+ f6 53. Rb7 Ra5 54. Rd7 Ra6 55. Kg3 h5 56. gxh5+ Kxh5 57. Rg7 Kh6 58. Rg4 Ra5 59. Kf4 Rb5 60. Rg3 Ra5 61. Ke3 Ra3+ 62. Kf2 f5 63. Rg1 fxe4 64. fxe4 Rb3 65. Ke2 Ra3 66. Rg8 Rb3 67. Rd8 Kg6 68. Rd3 Rxd3 69. Kxd3 Kf6 70. Kd4 Ke6 1/2-1/2

[Event "Issykkul op"]
[Site "Korumdu"]
[Date "2023.07.12"]
[Round "1"]
[White "Koziak, Vitali"]
[Black "Degenbaev, Aziz"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2364"]
[BlackElo "2151"]
[PlyCount "63"]
[EventDate "2023.07.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "KGZ"]
[SourceTitle "CBM 215 Extra"]
[Source "ChessBase"]
[SourceDate "2023.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2023.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. Nge2 Nc6 8. Qd2 Rb8 9. d5 Ne5 10. Ng3 e6 11. dxe6 Bxe6 12. b3 Qa5 13. Rc1 Rfd8 14. Be2 a6 15. 0-0 h5 16. Bg5 Re8 17. f4 Neg4 18. h3 Ne3 19. Qxe3 Nd5 20. Nxd5 Bd4 21. Nf6+ Kg7 22. Qxd4 cxd4 23. f5 Qe5 24. Nxe8+ Rxe8 25. Bf4 Qc5 26. b4 Qa7 27. Bd3 Bd7 28. fxg6 fxg6 29. Bxd6 Qa8 30. e5 Qd8 31. Rf6 Re6 32. Rcf1 1-0

[Event "Tashkent President op 1st"]
[Site "Tashkent"]
[Date "2021.11.14"]
[Round "5"]
[White "Kobalia, Mihail"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2600"]
[BlackElo "2407"]
[PlyCount "85"]
[EventDate "2021.11.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "UZB"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. 0-0 d6 6. a4 a6 7. c3 Ba7 8. Re1 h6 9. Nbd2 0-0 10. Nf1 Nh5 11. Ng3 Nf4 12. h3 g6 13. b4 Qf6 14. Ra2 Be6 15. Be3 Bxc4 16. dxc4 Bxe3 17. Rxe3 b6 18. Re1 a5 19. b5 Nb8 20. Nf1 Nd7 21. Ne3 Nc5 22. Kh2 Qe6 23. Qb1 f5 24. exf5 gxf5 25. Nd4 Qg6 26. Ndxf5 Kh8 27. Ne7 Qg5 28. N7d5 Rf7 29. Nxf4 Qxf4+ 30. g3 Qf3 31. Nd5 Raf8 32. Re3 Qh5 33. f4 Ne6 34. g4 Qh4 35. f5 Nf4 36. Nxf4 exf4 37. Qe1 Qg5 38. Re6 Rg8 39. Qe4 h5 40. Rg2 Rgg7 41. Re8+ Kh7 42. f6+ Rg6 43. Re7 1-0

[Event "Tashkent President op 1st"]
[Site "Tashkent"]
[Date "2021.11.13"]
[Round "2"]
[White "Koziak, Vitali"]
[Black "Niemann, Hans Moke"]
[Result "0-1"]
[ECO "B89"]
[WhiteElo "2407"]
[BlackElo "2635"]
[PlyCount "96"]
[EventDate "2021.11.12"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "UZB"]
[SourceTitle "CBM 205 Extra"]
[Source "ChessBase"]
[SourceDate "2022.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2022.01.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 a6 8. Qe2 Bd7 9. 0-0-0 b5 10. Bb3 Na5 11. g4 b4 12. g5 bxc3 13. gxf6 cxb2+ 14. Kb1 Qxf6 15. Rhg1 Nxb3 16. Nxb3 Qd8 17. e5 d5 18. c4 g6 19. cxd5 exd5 20. e6 Bxe6 21. Bd4 Rg8 22. Bxb2 Bg7 23. Bxg7 Rxg7 24. Qe5 Kf8 25. Ka1 Qb8 26. Qf6 Qxh2 27. Nd4 Re8 28. Rde1 Rg8 29. Rh1 Qd6 30. Rxh7 Qc7 31. Nf3 Bf5 32. Rxe8+ Kxe8 33. Rh1 Be4 34. Re1 g5 35. Nd2 Rg6 36. Qh8+ Kd7 37. f3 Qg3 38. Rc1 Rc6 39. Rxc6 Qe1+ 40. Kb2 Qxd2+ 41. Kb3 Kxc6 42. Qc8+ Kd6 43. Qb8+ Ke6 44. Qc8+ Ke5 45. Qc7+ Kf6 46. Qd6+ Kg7 47. fxe4 Qd3+ 48. Kb2 dxe4 0-1

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "9"]
[White "Babiy, Olga"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "2300"]
[BlackElo "2433"]
[PlyCount "64"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nge7 5. Bb3 Ng6 6. c3 d6 7. d4 Bg4 8. h3 Bxf3 9. Qxf3 Qd7 10. Be3 Na5 11. Nd2 Nxb3 12. Nxb3 Be7 13. 0-0 0-0 14. Rad1 f5 15. exf5 Qxf5 16. Qxb7 e4 17. Qxc7 Rae8 18. Qa5 d5 19. Qc7 Rf6 20. g4 Qe6 21. Nc5 Qf7 22. f4 exf3 23. Rde1 Nf4 24. Bxf4 Rxf4 25. Rf2 h5 26. Ne6 Re4 27. Rxe4 dxe4 28. Nc5 e3 29. Rf1 Bxc5 30. Qxf7+ Kxf7 31. Rxf3+ Kg8 32. dxc5 e2 0-1

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "5"]
[White "Bajarani, Ulvi"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2458"]
[BlackElo "2433"]
[PlyCount "106"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 b5 6. b3 Bf5 7. Ne5 g6 8. cxd5 cxd5 9. Bd2 Bg7 10. a4 b4 11. Ne2 a5 12. Ng3 Be6 13. Bb5+ Nfd7 14. f4 0-0 15. 0-0 Nxe5 16. fxe5 f6 17. exf6 exf6 18. Rc1 f5 19. Ne2 Nd7 20. Nf4 Bf7 21. Bc6 Ra6 22. Bxd5 Bxd5 23. Nxd5 Rd6 24. Nxb4 axb4 25. Bxb4 Nf6 26. Qf3 Ne4 27. Bxd6 Qxd6 28. Qf4 Qb4 29. g4 g5 30. Qf3 Kh8 31. gxf5 Nd2 32. Qd5 Nxf1 33. Rxf1 Qd2 34. Qe6 g4 35. f6 Bh6 36. f7 Qxe3+ 37. Qxe3 Bxe3+ 38. Kg2 Bxd4 39. Kg3 Kg7 40. Kxg4 Rxf7 41. Rxf7+ Kxf7 42. Kf5 Ke7 43. b4 Kd7 44. Kg5 Be3+ 45. Kf6 Bd2 46. b5 Kc7 47. Kg7 h6 48. a5 Bxa5 49. Kxh6 Bd2+ 50. Kg6 Kb6 51. h4 Kxb5 52. h5 Kc4 53. h6 Bxh6 1/2-1/2

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "2"]
[White "Belous, Vladimir"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "2521"]
[BlackElo "2433"]
[PlyCount "121"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 Nge7 6. Nc3 0-0 7. Rb1 a5 8. a3 d6 9. b4 axb4 10. axb4 Nd4 11. d3 c6 12. b5 d5 13. bxc6 bxc6 14. cxd5 Nxf3+ 15. Bxf3 cxd5 16. Bg2 Be6 17. Bg5 f6 18. Bd2 Kh8 19. Rb7 Rb8 20. Qb3 Rxb7 21. Qxb7 Rf7 22. Ra1 Nc8 23. Qb8 h5 24. Nxd5 Bxd5 25. Bxd5 Qxd5 26. Qxc8+ Kh7 27. Qc4 Rd7 28. Qxd5 Rxd5 29. f3 g5 30. Ra7 Kg6 31. h3 Bf8 32. Kg2 g4 33. hxg4 hxg4 34. fxg4 e4 35. Ra8 Kf7 36. g5 fxg5 37. Ra7+ Kg6 38. Ra6+ Kf7 39. Kh3 exd3 40. exd3 Rxd3 41. Bxg5 Bd6 42. Bh4 Ke6 43. Kg4 Rd4+ 44. Kh5 Rd5+ 45. Kg6 Rd4 46. Kh5 Rd5+ 47. Bg5 Kf7 48. g4 Be7 49. Rg6 Rxg5+ 50. Rxg5 Bxg5 51. Kxg5 Kg7 52. Kf5 Kf7 53. g5 Kg7 54. g6 Kg8 55. Kg5 Kg7 56. Kh5 Kg8 57. Kg4 Kg7 58. Kf5 Kg8 59. Kf6 Kf8 60. g7+ Kg8 61. Kg6 1/2-1/2

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "3"]
[White "Fedoseev, Vladimir1111"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2687"]
[BlackElo "2433"]
[PlyCount "47"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Qf3 Be7 9. Bd3 0-0 10. Nc3 h6 11. Nge4 Nd5 12. Ng3 Nb4 13. Nf5 Bg5 14. h4 Nxd3+ 15. cxd3 Bxf5 16. Qxf5 Bxh4 17. b3 Qd4 18. Bb2 Bg5 19. 0-0-0 Rfd8 20. Ne4 Qxd3 21. Rh3 Qd7 22. Qxd7 Rxd7 23. Nxg5 hxg5 24. Rdh1 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "8"]
[White "Koziak, Vitali"]
[Black "Berdnyk, Mariia"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2433"]
[BlackElo "2289"]
[PlyCount "94"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 c5 2. e3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nbd2 Qxc5 6. a3 Qc7 7. Be2 Nf6 8. 0-0 0-0 9. c4 d6 10. Rb1 a5 11. b4 Bf5 12. Rb3 a4 13. Rb2 Nc6 14. Nd4 Nxd4 15. exd4 d5 16. c5 Ne4 17. Nxe4 Bxe4 18. b5 e5 19. Be3 Rfe8 20. Rb4 Qe7 21. Rxa4 Rxa4 22. Qxa4 exd4 23. Bxd4 Bxg2 24. Kxg2 Qxe2 25. Bxg7 Kxg7 26. Qd4+ Kg8 27. Qxd5 Re4 28. h3 Re5 29. Qd8+ Kg7 30. Qd4 f6 31. Rg1 Qxb5 32. h4 Qc6+ 33. Kh2 Re4 34. Qd6 Rxh4+ 35. Kg3 Qxd6+ 36. cxd6 Rd4 37. Rb1 Rxd6 38. Rxb7+ Kh6 39. a4 Rd3+ 40. f3 Ra3 41. Ra7 g5 42. Ra6 Kg6 43. Kf2 h5 44. Kg3 g4 45. Kg2 Rxf3 46. Rb6 Ra3 47. Rb4 Kg5 0-1

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "4"]
[White "Koziak, Vitali"]
[Black "Bykhovsky, Avigdor"]
[Result "1-0"]
[ECO "A12"]
[WhiteElo "2433"]
[BlackElo "2398"]
[PlyCount "145"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. Bb2 Bf5 5. d3 h6 6. Nbd2 e6 7. g3 Nbd7 8. Bg2 Be7 9. 0-0 0-0 10. Qc2 Bh7 11. Bc3 a5 12. a3 b5 13. Rfc1 Qb6 14. cxb5 cxb5 15. b4 axb4 16. Bxb4 Bxb4 17. axb4 Ng4 18. e3 Rxa1 19. Rxa1 Nge5 20. Bf1 Qb7 21. Nxe5 Nxe5 22. Qc3 Qb8 23. Nb3 Rc8 24. Qd4 Nc6 25. Qc3 Ne5 26. Nc5 d4 27. exd4 Nc6 28. Bg2 Ne7 29. d5 exd5 30. Qd4 Bf5 31. Re1 Qd6 32. Qe5 Qxe5 33. Rxe5 Kf8 34. Bxd5 Rd8 35. Be4 Bxe4 36. Rxe4 Nc6 37. Kf1 Rd4 38. Rxd4 Nxd4 39. Ne4 Ke7 40. Nc3 Kd6 41. Ke1 Kc6 42. Kd2 Nf3+ 43. Ke3 Nxh2 44. Kf4 Nf1 45. Ne2 Nd2 46. Nd4+ Kb6 47. Nf5 g5+ 48. Kg4 Nb1 49. Nxh6 Nc3 50. Nxf7 Nd5 51. Kxg5 Nxb4 52. Nd6 Nxd3 53. f4 b4 54. f5 Kc5 55. Ne4+ Kd5 56. Nd2 Ne5 57. g4 Kd4 58. Nb3+ Kc3 59. Nc5 Kc4 60. Na4 b3 61. Kf4 Kb4 62. Nb2 Nc4 63. Nd3+ Kc3 64. Nc5 b2 65. Na4+ Kd4 66. Nxb2 Nxb2 67. f6 Nd3+ 68. Kf5 Ne5 69. g5 Kd5 70. g6 Nd7 71. g7 Nxf6 72. Kxf6 Ke4 73. g8Q 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "1"]
[White "Koziak, Vitali"]
[Black "Gudok, Viktor V"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2433"]
[BlackElo "2157"]
[PlyCount "109"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 d6 5. Bg2 0-0 6. 0-0 Nc6 7. d3 Bd7 8. Rb1 Qc8 9. b4 Bh3 10. b5 Nd8 11. Bg5 Bxg2 12. Kxg2 Ne6 13. Bxf6 Bxf6 14. Nd5 Kg7 15. d4 c6 16. Nxf6 exf6 17. bxc6 bxc6 18. Qa4 c5 19. d5 Nd4 20. Nxd4 cxd4 21. Rfd1 Re8 22. Qc2 Qc5 23. Rb5 Qc7 24. Rxd4 Rac8 25. e3 Rb8 26. Qa4 Rxb5 27. cxb5 Rc8 28. Qb4 Qc5 29. a4 f5 30. Qxc5 Rxc5 31. e4 fxe4 32. Rxe4 Kf6 33. Rb4 Rxd5 34. a5 Rc5 35. b6 axb6 36. axb6 Rc8 37. Kf3 Ke6 38. Ke4 Rb8 39. Kd4 h5 40. h4 Rb7 41. Rb1 f6 42. Rb2 g5 43. Rb1 gxh4 44. gxh4 f5 45. f4 Rb8 46. b7 Kd7 47. Kd5 Kc7 48. Rc1+ Kd7 49. Rg1 Rxb7 50. Rg7+ Kc8 51. Rxb7 Kxb7 52. Kxd6 Kc8 53. Ke6 Kd8 54. Kxf5 Ke7 55. Kg5 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "12"]
[White "Koziak, Vitali"]
[Black "Klementev, Oleg"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2433"]
[BlackElo "2043"]
[PlyCount "67"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 f5 2. d3 d6 3. e4 e5 4. exf5 Bxf5 5. d4 e4 6. Nfd2 Nf6 7. Nc4 Nc6 8. Be2 d5 9. Ne3 Be6 10. 0-0 Bd6 11. f4 exf3 12. Bxf3 0-0 13. c4 Be7 14. Nc3 Bf7 15. cxd5 Nb4 16. Nf5 Nbxd5 17. Bg5 Nxc3 18. bxc3 Bc4 19. Re1 Bd6 20. Bxb7 Rb8 21. Qf3 Qd7 22. Bc6 Qc8 23. Re7 Rf7 24. Rxf7 Kxf7 25. Nxg7 Kxg7 26. Qxf6+ Kg8 27. d5 Qg4 28. h3 Qg3 29. Qe6+ Kg7 30. Bf6+ Kf8 31. Be7+ Bxe7 32. Re1 Qg5 33. Re5 Qg7 34. Rf5+ 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "6"]
[White "Koziak, Vitali"]
[Black "Lazavik, Denis"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2433"]
[BlackElo "2442"]
[PlyCount "233"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bb5 Nd7 9. 0-0 Be7 10. Rc1 Rc8 11. Nd2 0-0 12. Nb3 a6 13. Be2 Nb6 14. Nc5 Bxc5 15. dxc5 Nd7 16. Bd6 Re8 17. a3 Nf6 18. b4 Ne4 19. Nxe4 Bxe4 20. Qd2 Ne7 21. f3 Bg6 22. Rfd1 Nf5 23. Be5 Qg5 24. e4 Ne3 25. Bg3 d4 26. Qxd4 Nxd1 27. Rxd1 e5 28. Qd2 Qe7 29. Qd6 f6 30. Bc4+ Bf7 31. Qxe7 Rxe7 32. Bd5 Rd7 33. Bxf7+ Rxf7 34. Rd6 Kf8 35. f4 exf4 36. Bxf4 Ke8 37. Kf2 Rc6 38. Ke3 Rxd6 39. Bxd6 Kd7 40. a4 Kc6 41. Kd4 Rd7 42. Kc4 Rd8 43. b5+ axb5+ 44. axb5+ Kd7 45. Kd5 Ra8 46. c6+ bxc6+ 47. bxc6+ Ke8 48. Ke6 Ra6 49. c7 Rc6 50. Kd5 Kd7 51. Bf4 Rc2 52. g4 Rf2 53. Bg3 Rd2+ 54. Kc5 g6 55. Kc4 h5 56. gxh5 gxh5 57. Kc3 Rd1 58. Kc4 Ra1 59. Kd4 Ra3 60. Kd5 Ra5+ 61. Kd4 Ra2 62. Kd5 Rc2 63. Kd4 Ke6 64. Kd3 Rc6 65. Kd4 Rc1 66. Kd3 Kd7 67. Kd4 Ra1 68. Kd5 Ra8 69. Kd4 Rh8 70. e5 h4 71. Bf4 Kxc7 72. exf6+ Kd7 73. Ke5 Rh5+ 74. Ke4 Ke6 75. Kf3 Kxf6 76. Kg4 Kg6 77. h3 Rh7 78. Bg5 Ra7 79. Bxh4 Ra4+ 80. Kg3 Ra3+ 81. Kg4 Ra4+ 82. Kg3 Kf5 83. Bd8 Ra3+ 84. Kg2 Kf4 85. Bc7+ Ke4 86. Bd8 Ra8 87. Be7 Ra6 88. h4 Kf4 89. Bg5+ Kg4 90. Kf2 Re6 91. Bd8 Re5 92. Bg5 Re8 93. Bh6 Kxh4 94. Kf3 Re6 95. Bf4 Kh5 96. Kg3 Kg6 97. Kg4 Re4 98. Kf3 Kf5 99. Bb8 Ra4 100. Ke3 Ke6 101. Kd3 Kd5 102. Ke3 Rb4 103. Bc7 Rc4 104. Bb8 Rc3+ 105. Kf4 Ke6 106. Ke4 Rc4+ 107. Ke3 Kd5 108. Kf3 Rc3+ 109. Kf4 Rd3 110. Bc7 Rd4+ 111. Kf3 Ke6 112. Bb8 Kf5 113. Ke3 Rd7 114. Bh2 Rb7 115. Kd4 Rb4+ 116. Kc5 Rf4 117. Bxf4 1/2-1/2

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "10"]
[White "Koziak, Vitali"]
[Black "Mikhaletz, Lubomir"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2433"]
[BlackElo "2348"]
[PlyCount "35"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 d6 2. d4 Bg4 3. c4 Nd7 4. Qb3 Qc8 5. h3 Bh5 6. Nc3 Ngf6 7. g4 Bg6 8. Bg2 c6 9. Bf4 Qc7 10. 0-0 e5 11. dxe5 dxe5 12. Nxe5 Nxe5 13. Bxe5 Qxe5 14. Qxb7 Bd6 15. Bxc6+ Kf8 16. Qxa8+ Ke7 17. Qxa7+ Bc7 18. f4 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "14"]
[White "Koziak, Vitali"]
[Black "Sjugirov, Sanan"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2433"]
[BlackElo "2663"]
[PlyCount "81"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c6 7. d4 Bf5 8. Qb3 Qb6 9. Qa3 a5 10. b3 Na6 11. Qb2 Nb4 12. Rd1 Ne4 13. Be3 Nxc3 14. Qxc3 Nc2 15. Rac1 Nxe3 16. Qxe3 a4 17. c5 Qc7 18. b4 Be6 19. a3 Bb3 20. Rd3 Rfe8 21. Nd2 Be6 22. Nc4 Bxc4 23. Rxc4 d5 24. Rc1 e5 25. dxe5 Rxe5 26. Qd2 Rae8 27. e3 h5 28. b5 h4 29. Qb4 hxg3 30. hxg3 Ra8 31. Rb1 Bf8 32. Qd4 Rh5 33. Rb4 Qa5 34. g4 Rh8 35. e4 dxe4 36. Bxe4 Qa7 37. b6 Qa5 38. Rc3 Re8 39. Qc4 Qa8 40. Bxg6 Re6 41. Rf3 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "11"]
[White "Mitusov, Semen"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2297"]
[BlackElo "2433"]
[PlyCount "87"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. a3 g6 6. Nc3 Bg7 7. h3 d6 8. Be3 0-0 9. Qd2 Kh7 10. 0-0-0 a6 11. Nd5 Nxd5 12. Bxd5 Be6 13. d4 Bxd5 14. exd5 exd4 15. Nxd4 Ne5 16. Qc3 Rc8 17. f4 c5 18. fxe5 cxd4 19. Qxd4 Bxe5 20. Qd2 Qh4 21. Rhf1 f5 22. Bf4 Rfe8 23. Kb1 Qf6 24. Bxe5 Rxe5 25. Qb4 Qe7 26. Rd3 Rc5 27. Rfd1 h5 28. a4 Re4 29. Rd4 Re2 30. Rc4 Rxc4 31. Qxc4 Rxg2 32. Rd3 Re2 33. Qc8 Re1+ 34. Ka2 Re4 35. b3 Kh6 36. Rc3 Kg5 37. Rc7 Qf6 38. Qxb7 Re1 39. Ka3 f4 40. Qxa6 f3 41. Qd3 f2 42. h4+ Kxh4 43. Rc4+ Kg5 44. Qd2+ 1-0

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "13"]
[White "Molchanov, Alexey"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "A81"]
[WhiteElo "2402"]
[BlackElo "2433"]
[PlyCount "58"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 d6 4. Nd2 e5 5. c3 Nc6 6. Nc4 Qe7 7. Bg5 e4 8. h4 h6 9. Bxf6 Qxf6 10. Nh3 g5 11. hxg5 hxg5 12. Qd2 Bh6 13. Nxg5 Bxg5 14. Rxh8+ Kf7 15. Ne3 Qxh8 16. 0-0-0 Qh6 17. Rh1 Bxe3 18. fxe3 Qg5 19. Qc2 Kg7 20. g4 Qxe3+ 21. Kb1 Qf2 22. Bxe4 Ne7 23. gxf5 Bxf5 24. Bxf5 Nxf5 25. Qe4 Nh6 26. Qe7+ Nf7 27. Qe4 Rg8 28. Qxb7 Qxe2 29. Rg1+ Kf6 0-1

[Event "Bogdanovich Memorial Final"]
[Site "Lichess.org INT"]
[Date "2021.02.13"]
[Round "7"]
[White "Rustemov, Alexander"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "D63"]
[WhiteElo "2525"]
[BlackElo "2433"]
[PlyCount "119"]
[EventDate "2021.02.13"]
[EventType "swiss (blitz)"]
[EventRounds "14"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 a6 8. Qc2 dxc4 9. Bxc4 c5 10. dxc5 Nxc5 11. 0-0 b5 12. Be2 Bb7 13. b4 Ncd7 14. Qb3 Nd5 15. Bxe7 Qxe7 16. a3 N7b6 17. Ne5 Nxc3 18. Rxc3 Bd5 19. Qc2 Rfc8 20. Nc6 Qb7 21. Rc1 Bc4 22. Na5 Qd5 23. Nxc4 bxc4 24. Bxc4 Nxc4 25. Rxc4 Rxc4 26. Qxc4 Qxc4 27. Rxc4 Kf8 28. Rc5 Rd8 29. g3 Rd3 30. Ra5 Rd6 31. Kf1 h6 32. Ke2 g5 33. Rc5 Kg7 34. a4 f5 35. b5 axb5 36. axb5 Kf6 37. f4 g4 38. Rc2 Ke7 39. Rb2 Kd7 40. e4 Kc7 41. exf5 exf5 42. Rd2 Re6+ 43. Kf2 Kb6 44. Rd5 Rf6 45. Ke3 h5 46. Kd4 h4 47. Ke5 hxg3 48. hxg3 Rf8 49. Rd6+ Kxb5 50. Rf6 Rg8 51. Kxf5 Kc5 52. Rg6 Rf8+ 53. Kxg4 Kd5 54. Kg5 Ke4 55. Kg4 Rf7 56. Re6+ Kd5 57. Re8 Rg7+ 58. Kf3 Kd6 59. g4 Kd7 60. Re1 1-0

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "3"]
[White "Atakanov, Adil"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "1810"]
[BlackElo "2433"]
[PlyCount "126"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nf3 d6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Nc3 Qe8 8. d5 Na6 9. Rb1 c5 10. Re1 Nc7 11. a3 Ng4 12. Bf4 h6 13. h4 b5 14. cxb5 Nxb5 15. Nxb5 Qxb5 16. Qd2 a5 17. Bh3 Kh7 18. Qc2 a4 19. Nd2 Ra7 20. Bxg4 fxg4 21. e4 Ba6 22. b4 axb3 23. Rxb3 Qa4 24. Qb1 Rxf4 25. gxf4 Qd4 26. Nf1 c4 27. Rbe3 c3 28. Ng3 Rb7 29. Qc1 Rb2 30. h5 Bd3 31. hxg6+ Kxg6 32. Nf5 Qc4 33. Nxg7 Rb1 34. Qxb1 Bxb1 35. Rxb1 Kxg7 36. Rc1 c2 37. a4 Qxa4 38. Re2 Qb3 39. Rcxc2 Qf3 40. f5 h5 41. Rcd2 h4 42. Re3 Qf4 43. Rde2 Qe5 44. Kg2 h3+ 45. Kh1 Qa1+ 46. Re1 Qb2 47. R3e2 Qd4 48. Re3 Kf6 49. Rg1 Qd2 50. Rf1 Ke5 51. Kh2 Kf4 52. e5 dxe5 53. d6 Qxd6 54. Rg3 e4 55. Rfg1 Kxf5 56. Kh1 Qf4 57. Rxg4 Qxg4 58. Rxg4 Kxg4 59. Kh2 Kf3 60. Kxh3 Kxf2 61. Kg4 e3 62. Kf4 e2 63. Ke5 e1Q+ 0-1

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "9"]
[White "Bazakutsa, Svyatoslav"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "2050"]
[BlackElo "2433"]
[PlyCount "133"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 g6 5. d4 Bg7 6. Bd3 0-0 7. 0-0 b6 8. b3 Bb7 9. Bb2 Nbd7 10. e4 dxe4 11. Nxe4 c5 12. Nxf6+ Bxf6 13. Be2 Rc8 14. Rb1 Bxf3 15. Bxf3 cxd4 16. Bxd4 Ne5 17. Bxe5 Bxe5 18. Qe2 Bd4 19. g3 Kg7 20. Rbd1 e5 21. Bd5 f5 22. Kg2 f4 23. f3 h5 24. Rfe1 Qg5 25. Qe4 fxg3 26. h4 Qf4 27. Be6 Rce8 28. Bd7 Rd8 29. Bc6 Bf2 30. Rf1 Qxe4 31. Bxe4 Rd4 32. Rxd4 exd4 33. Rd1 Rf4 34. Kh3 Kf6 35. b4 g5 36. hxg5+ Kxg5 37. Kg2 Rh4 38. Rh1 Rxh1 39. Kxh1 Kf4 40. Kg2 Ke3 41. c5 d3 42. Bxd3 bxc5 43. Bg6 cxb4 44. Bxh5 Kf4 45. Be8 Bd4 46. Bc6 Be5 47. Kh3 Ke3 48. f4 Bxf4 49. Kg2 a5 50. Bb5 Bd6 51. Bc6 Kd4 52. Kf3 Kc3 53. Bd5 Kb2 54. Bb3 a4 55. Bxa4 Kxa2 56. Bc6 b3 57. Bd5 Ka3 58. Be4 Kb2 59. Kg2 Kc1 60. Kf3 b2 61. Kg2 b1Q 62. Bxb1 Kxb1 63. Kf3 Kc2 64. Kg2 Kd3 65. Kg1 Ke3 66. Kg2 Kf4 67. Kg1 0-1

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "1"]
[White "Borzenko, Matviy"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "C55"]
[BlackElo "2433"]
[PlyCount "108"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Nc3 Nxe4 5. Nxe4 d5 6. Bxd5 Qxd5 7. Nc3 Qd6 8. d3 Bg4 9. h3 Bh5 10. Be3 0-0-0 11. Qd2 Bxf3 12. gxf3 Nd4 13. Bxd4 exd4 14. Ne4 Qb6 15. 0-0-0 f5 16. Ng3 g6 17. Rde1 Bb4 18. c3 dxc3 19. bxc3 Ba3+ 20. Kd1 Qb1+ 21. Ke2 Rhe8+ 22. Kf1 Qxd3+ 23. Qxd3 Rxe1+ 24. Kxe1 Rxd3 25. Ne2 Rxf3 26. h4 Bc5 27. Rh2 Kd7 28. h5 g5 29. h6 Ke6 30. Rg2 g4 31. a4 Kf6 32. a5 Kg5 33. Rh2 f4 34. Rg2 Rh3 35. Rg1 Rxh6 36. Rf1 Re6 37. Kd2 h5 38. Nc1 h4 39. Nd3 Bd6 40. c4 c5 41. Rb1 Re7 42. Rb5 h3 43. Nxc5 Bxc5 44. Rxc5+ Kh4 45. Rb5 h2 46. Rb1 g3 47. fxg3+ fxg3 48. Kd3 g2 49. Rb4 g1Q 50. c5+ Kh3 51. c6 Qd1+ 52. Kc4 Re4+ 53. Kc5 Qc2+ 54. Kb5 Qxc6# 0-1

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "10"]
[White "Koziak, Vitali"]
[Black "Baidetsky, Valentin"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2433"]
[BlackElo "2403"]
[PlyCount "98"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d5 6. cxd5 Nxd5 7. 0-0 Nc6 8. Nxd5 Qxd5 9. d3 Qb5 10. Rb1 Bg4 11. h3 Bxf3 12. Bxf3 Nd4 13. Bg2 c5 14. Be3 Rad8 15. Bxd4 Rxd4 16. b3 b6 17. Qc2 h5 18. Rfc1 h4 19. g4 Qd7 20. Qd2 Kh7 21. Rc4 Rd8 22. Rbc1 Bh6 23. g5 Bg7 24. Rxd4 Qxd4 25. Rc4 Qa1+ 26. Rc1 Qe5 27. Rc4 Rd4 28. Rxd4 Qxd4 29. Be4 Be5 30. Kg2 Kg7 31. e3 Qa1 32. Qe2 b5 33. Qc2 Bd6 34. Qe2 Qe5 35. Qg4 Qb2 36. Qxh4 Kg8 37. Bd5 e6 38. Bc6 a6 39. Qe4 Qxa2 40. Be8 Qxb3 41. Qb7 Qd5+ 42. Qxd5 exd5 43. Bc6 c4 44. Bxd5 c3 45. Bb3 a5 46. Kf1 a4 47. Bc2 a3 48. Bb3 c2 49. Bxc2 a2 0-1

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "8"]
[White "Koziak, Vitali"]
[Black "Maltsevskaya, Aleksandra"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "2433"]
[BlackElo "2327"]
[PlyCount "96"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 d6 5. g3 0-0 6. Bg2 Nbd7 7. 0-0 e5 8. Qc2 exd4 9. Nxd4 Nc5 10. Rd1 Re8 11. Rb1 a5 12. b3 c6 13. a3 Ne6 14. Nxe6 Bxe6 15. e4 Bg4 16. f3 Be6 17. e5 Qb6+ 18. Qf2 Qxf2+ 19. Kxf2 dxe5 20. Be3 Nd7 21. Na4 b5 22. Nb2 Rab8 23. cxb5 cxb5 24. Nd3 Rec8 25. f4 Rc3 26. fxe5 Nxe5 27. Nxe5 Bxe5 28. Re1 Bf6 29. Bd2 Rc2 30. Re2 Bg4 31. Bf3 Bxf3 32. Kxf3 b4 33. axb4 axb4 34. Bf4 Rc3+ 35. Kg2 Rbc8 36. Be5 Rc2 37. Bxf6 Rxe2+ 38. Kf3 Rxh2 39. Rd1 h5 40. Rd4 Rc3+ 41. Kf4 Rf2+ 42. Kg5 Rf5+ 43. Kh6 Rc8 44. Rd6 Rf3 45. Rb6 Rxb3 46. Rb7 Rxg3 47. Rxb4 Rf3 48. Be5 Rf5 0-1

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "12"]
[White "Koziak, Vitali"]
[Black "Zinovjev, Taras"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2433"]
[BlackElo "2307"]
[PlyCount "101"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 g6 5. Nc3 Bg7 6. Bd3 0-0 7. 0-0 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. Rd1 Nbd7 11. Rb1 a5 12. b3 Re8 13. Bb2 e5 14. cxd5 cxd5 15. dxe5 Nxe5 16. Qe2 Nxd3 17. Qxd3 Qe7 18. Nxd5 Nxd5 19. Qxd5 Bxb2 20. Rxb2 Rad8 21. Qf3 Rxd1+ 22. Qxd1 Rd8 23. Rd2 Rxd2 24. Qxd2 b6 25. Qd4 Qe6 26. g4 h6 27. Kg2 Qc6+ 28. Kg3 b5 29. Qd8+ Kg7 30. Qxa5 Qd6+ 31. f4 Qd3 32. Qb6 Kh7 33. Qd4 Qf1 34. Qd2 Qg1+ 35. Kf3 Qh1+ 36. Qg2 Qd1+ 37. Kg3 b4 38. Qf2 Qd3 39. f5 g5 40. h4 Kg7 41. hxg5 hxg5 42. Qb2+ Kg8 43. Qe5 Qf1 44. f6 Qg1+ 45. Kf3 Qh1+ 46. Ke2 Qg2+ 47. Kd3 Qxg4 48. Qe8+ Kh7 49. Qxf7+ Kh6 50. Qg7+ Kh5 51. Qh7# 1-0

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "7"]
[White "Pour Agha Bala, Amirreza"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2432"]
[BlackElo "2433"]
[PlyCount "23"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 g6 6. Be3 Bg7 7. Nc3 d6 8. h3 Na5 9. Bb3 Nxb3 10. axb3 0-0 11. d4 Qe7 12. Qd2 1/2-1/2

[Event "Bogdanovich Memorial Qual 2"]
[Site "Lichess.org INT"]
[Date "2021.02.08"]
[Round "5"]
[White "Shevchenko, Danylo"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2208"]
[BlackElo "2433"]
[PlyCount "54"]
[EventDate "2021.02.08"]
[EventType "swiss (blitz)"]
[EventRounds "12"]
[EventCountry "UKR"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 d3 4. Bxd3 Nc6 5. Nf3 d6 6. Bc4 Nf6 7. Bf4 Be7 8. Nbd2 0-0 9. 0-0 d5 10. exd5 Nxd5 11. Bg3 Nb6 12. Bb3 Bf5 13. Re1 Bd6 14. Nh4 Bg6 15. Nxg6 hxg6 16. Ne4 Bxg3 17. hxg3 Na5 18. Nc5 Qg5 19. Ne4 Qb5 20. Qe2 a6 21. Bd1 Rfe8 22. Qxb5 axb5 23. Bf3 Re5 24. Nd2 Rae8 25. Kf1 Nac4 26. Nxc4 Nxc4 27. Bxb7 Nd2+ 0-1

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.25"]
[Round "8"]
[White "Galperin, Platon"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2461"]
[BlackElo "2428"]
[PlyCount "67"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 b5 6. Be2 e6 7. 0-0 Bb7 8. b3 b4 9. e5 Nd5 10. Nxd5 cxd5 11. bxc4 dxc4 12. Bxc4 Be7 13. Be3 0-0 14. Nd2 Ba6 15. Qg4 Kh8 16. f4 Bxc4 17. Nxc4 Qd5 18. Rac1 Nc6 19. Rfd1 g6 20. Bf2 Rac8 21. Rc2 Rfd8 22. Ne3 Qb5 23. d5 exd5 24. Rxd5 Qa6 25. h4 h5 26. Qd1 Na5 27. f5 Rxd5 28. Rxc8+ Qxc8 29. Qxd5 Qc1+ 30. Kh2 Qc5 31. Qxf7 Qxe5+ 32. Bg3 Qf6 33. Qe8+ Kg7 34. Nd5 1-0

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.24"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Bilych, Olexiy"]
[Result "1-0"]
[ECO "E34"]
[WhiteElo "2428"]
[BlackElo "2318"]
[PlyCount "103"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 Bb4 5. e3 0-0 6. Qc2 b6 7. a3 Bxc3+ 8. Qxc3 Ba6 9. b4 Bxc4 10. Bxc4 dxc4 11. Qxc4 Qd5 12. Qxd5 exd5 13. Bb2 Ne4 14. Ke2 Nd6 15. Nd2 a5 16. bxa5 Rxa5 17. Rhc1 Rc8 18. a4 Nb7 19. Bc3 Ra6 20. Nb3 Kf8 21. a5 b5 22. f3 f5 23. Be1 Ke8 24. Rc2 Nd7 25. Rac1 c6 26. Bb4 Nf6 27. Rb1 Kd7 28. Nc1 Ne8 29. Nd3 Ned6 30. Bxd6 Kxd6 31. Rxb5 Nxa5 32. Rxd5+ cxd5 33. Rxc8 Nc4 34. Nb4 Rb6 35. Nxd5 Rb2+ 36. Kd3 Kxd5 37. Rc5+ Ke6 38. Rxc4 Rxg2 39. Rc7 Rxh2 40. Rxg7 Rf2 41. f4 Rh2 42. Ra7 h5 43. d5+ Kf6 44. Ra6+ Kg7 45. d6 Rh1 46. Kd4 Kf6 47. d7+ Ke7 48. Ke5 h4 49. Kxf5 h3 50. Rh6 Kxd7 51. Kf6 h2 52. f5 1-0

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.22"]
[Round "5"]
[White "Koziak, Vitali"]
[Black "Onischuk, Vladimir"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2428"]
[BlackElo "2633"]
[PlyCount "104"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. c4 Nf6 4. Nc3 0-0 5. Nf3 d6 6. 0-0 e5 7. d3 Nc6 8. Rb1 a5 9. a3 Re8 10. Nd2 Ne7 11. b4 axb4 12. axb4 c6 13. b5 h6 14. Bb2 Be6 15. Nce4 Nxe4 16. Nxe4 cxb5 17. cxb5 Qb6 18. Nd2 d5 19. Qb3 Rec8 20. Rfc1 Rxc1+ 21. Bxc1 Rc8 22. Bb2 Qa5 23. Nf3 d4 24. Qa3 Qxa3 25. Bxa3 Nd5 26. Bd6 Nc3 27. Re1 e4 28. dxe4 Bc4 29. Bf1 Nxe4 30. Be5 Bxe5 31. Nxe5 Bxb5 32. Nf3 Rd8 33. Rd1 Nc3 34. Rxd4 Ra8 35. Rd2 Bc4 36. Ne5 Be6 37. f3 b5 38. Nc6 Ra1 39. Kg2 Nd1 40. Rd3 Kg7 41. h4 Bc4 42. Rd2 Ne3+ 43. Kf2 Nxf1 44. Rb2 Rd1 45. Ne5 Nd2 46. Nxc4 Rf1+ 47. Kg2 Nxc4 48. Rxb5 Ne3+ 49. Kh2 Rf2+ 50. Kh3 h5 51. g4 Nf1 52. gxh5 f5 0-1

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.21"]
[Round "4"]
[White "Koziak, Vitali"]
[Black "Golubka, Petr"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2428"]
[BlackElo "2487"]
[PlyCount "43"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199"]
[Source "ChessBase"]
[SourceDate "2020.12.31"]
[SourceVersion "1"]
[SourceVersionDate "2020.12.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bf5 6. Be2 cxd4 7. cxd4 Bxb1 8. Rxb1 e6 9. 0-0 Qxa2 10. Be3 Nf6 11. Ne5 Qd5 12. Qa4 Bd6 13. Bf3 Ne4 14. Nc4 Bc7 15. Qa3 f5 16. Rbc1 Rd8 17. Rfd1 Kf7 18. Bg5 Rc8 19. Ne5+ Kg8 20. Rxc6 bxc6 21. Qe7 h6 22. Bf6 1-0

[Event "UKR-ch op 89th"]
[Site "Kremenchuk"]
[Date "2020.11.18"]
[Round "1.1"]
[White "Koziak, Vitali"]
[Black "Korobov, Anton"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2428"]
[BlackElo "2683"]
[PlyCount "80"]
[EventDate "2020.11.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 199 Extra"]
[Source "ChessBase"]
[SourceDate "2021.01.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.01.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 Qa5 3. Na3 Nc6 4. Nc4 Qd8 5. Nf3 e6 6. e5 Nh6 7. d4 cxd4 8. Bxh6 gxh6 9. Nxd4 Qg5 10. g3 Bc5 11. f4 Qe7 12. Nxc6 bxc6 13. Bd3 0-0 14. Qh5 f6 15. Qxh6 fxe5 16. fxe5 Bf2+ 17. Ke2 Ba6 18. Rhf1 Bxc4 19. Bxc4 Qc5 20. Bd3 Rf7 21. Qg5+ Kh8 22. Kd2 Raf8 23. Kc2 d5 24. Rad1 Qb6 25. Rd2 Be3 26. Rxf7 Rxf7 27. Qh5 Rb7 28. b4 Bxd2 29. Qe8+ Kg7 30. Qxe6 Qf2 31. Qg4+ Bg5+ 32. Kb3 h6 33. h4 c5 34. hxg5 c4+ 35. Bxc4 dxc4+ 36. Qxc4 hxg5 37. Qd5 Re7 38. Qd4 Qxd4 39. cxd4 Kf7 40. b5 Ke6 0-1

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.28"]
[Round "9"]
[White "Koziak, Vitali"]
[Black "Trybus, Daniel"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2434"]
[BlackElo "1997"]
[PlyCount "57"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 c6 7. Nc3 Qa5 8. e4 e5 9. d5 cxd5 10. cxd5 b5 11. a4 b4 12. Nb5 Qd8 13. Be3 a6 14. Na7 Bd7 15. Rc1 Ng4 16. Bg5 Qe8 17. Rc7 Bxa4 18. Qa1 Bf6 19. Bd2 a5 20. Rfc1 Bd7 21. h3 Nxf2 22. Kxf2 Na6 23. Qxa5 Nxc7 24. Qxc7 Bd8 25. Qb7 f5 26. Kg1 fxe4 27. Ng5 h6 28. Nxe4 Qf7 29. Bxh6 1-0

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.27"]
[Round "8"]
[White "Stalmach, Richard"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "A87"]
[WhiteElo "2287"]
[BlackElo "2434"]
[PlyCount "81"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 d6 7. Nc3 Qe8 8. d5 Na6 9. Rb1 Nc5 10. b4 Nce4 11. Bb2 e5 12. dxe6 Bxe6 13. Nxe4 fxe4 14. Nd2 d5 15. cxd5 Bxd5 16. Qc2 Qc6 17. Qxc6 bxc6 18. Bxf6 Rxf6 19. Bxe4 Bxa2 20. Rbc1 Rd8 21. Rc2 Bf7 22. Bd3 Rb8 23. Ne4 Re6 24. Ng5 Rd6 25. Nxf7 Kxf7 26. b5 Ke7 27. bxc6 a5 28. Rfc1 a4 29. Ra2 Ra8 30. Kg2 a3 31. Rb1 Rd5 32. f4 Raa5 33. Be4 Rd4 34. Bf3 Rda4 35. e3 Ra8 36. Rb7 R8a7 37. Rb3 Bb2 38. Rd3 Kf6 39. Rd7 h5 40. h4 Rc4 41. Bd5 1-0

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.26"]
[Round "6"]
[White "Jedlicka, Ales"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2197"]
[BlackElo "2434"]
[PlyCount "67"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bg7 7. e4 0-0 8. a7 Rxa7 9. Nf3 d6 10. Be2 Ba6 11. 0-0 Nbd7 12. a4 Qa8 13. Bg5 h6 14. Bd2 Bxe2 15. Qxe2 Rb8 16. Rfb1 Ne8 17. b3 Nc7 18. Ra3 Bxc3 19. Bxc3 Nb5 20. axb5 Rxa3 21. h4 Rb7 22. h5 g5 23. e5 Qf8 24. e6 Nf6 25. Bxf6 exf6 26. Qb2 Ra8 27. Qxf6 fxe6 28. Qg6+ Rg7 29. Qxe6+ Kh7 30. Re1 Rb8 31. Qe4+ Kg8 32. Qe6+ Kh7 33. Qe4+ Kg8 34. Qe6+ 1/2-1/2

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.26"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Ludvik, Tomas"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2434"]
[BlackElo "2218"]
[PlyCount "65"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. d4 c6 4. e3 Nf6 5. b3 Ne4 6. Nbd2 Bb4 7. Bd3 f5 8. 0-0 Nd7 9. Bb2 Qf6 10. Qc1 0-0 11. Ba3 a5 12. Bxb4 axb4 13. a3 bxa3 14. Rxa3 Rxa3 15. Qxa3 e5 16. cxd5 cxd5 17. Qa5 Qd6 18. dxe5 Nxe5 19. Nxe5 Nxd2 20. Qxd2 Qxe5 21. Qb4 f4 22. Bxh7+ Kf7 23. exf4 Qh5 24. Bb1 Rh8 25. h3 Rh6 26. f5 b6 27. Rc1 Bd7 28. Qd4 Rd6 29. Be4 Kf8 30. Qb4 Ke7 31. Re1 Qh6 32. Bxd5+ Kd8 33. Be6 1-0

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.25"]
[Round "5"]
[White "Koziak, Vitali"]
[Black "Pogan, Nikolas"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2434"]
[BlackElo "2212"]
[PlyCount "77"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 d6 5. d4 0-0 6. Bg2 a5 7. 0-0 c6 8. c4 Bf5 9. Nc3 Ne4 10. Nh4 Nxc3 11. Bxc3 Be6 12. Rc1 d5 13. e4 dxe4 14. Bxe4 Nd7 15. Re1 Nf6 16. Bg2 a4 17. Rxe6 fxe6 18. Qe2 Qd6 19. Bh3 axb3 20. axb3 Kh8 21. Bxe6 Ne8 22. Qg4 Rf6 23. d5 Rxe6 24. Qxe6 Qxe6 25. dxe6 Bxc3 26. Rxc3 Nc7 27. Rd3 Nxe6 28. Rd7 Nc5 29. Rxe7 Ra1+ 30. Kg2 Rb1 31. Re8+ Kg7 32. Re5 b6 33. Re7+ Kg8 34. Rc7 Rxb3 35. Rxc6 Rb2 36. Rc8+ Kg7 37. Rc7+ Kg8 38. Rc8+ Kg7 39. Rc7+ 1/2-1/2

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.24"]
[Round "4"]
[White "Krasteva, Beloslava"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2296"]
[BlackElo "2434"]
[PlyCount "67"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Rc1 Qa5 9. Qd2 cxd4 10. cxd4 Qxd2+ 11. Bxd2 0-0 12. Be3 Nc6 13. d5 Nb4 14. Bd2 a5 15. a3 Bb2 16. axb4 Bxc1 17. Bxc1 axb4 18. Bd3 e6 19. d6 Ra1 20. Ne2 e5 21. f4 exf4 22. 0-0 g5 23. Bb2 Rxf1+ 24. Kxf1 Bd7 25. Bf6 Ra8 26. Bc4 h6 27. Ke1 Ra3 28. Bd5 b6 29. Nd4 Ra1+ 30. Kd2 g4 31. e5 Kf8 32. e6 fxe6 33. Nxe6+ Bxe6 34. Bxe6 1-0

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.23"]
[Round "3"]
[White "Koziak, Vitali"]
[Black "Siekanski, Janusz"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2434"]
[BlackElo "2184"]
[PlyCount "53"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 e6 3. Bg2 c5 4. 0-0 Nc6 5. d3 Bd6 6. e4 Nge7 7. Re1 0-0 8. c3 dxe4 9. dxe4 b6 10. Na3 a6 11. Nc4 Bc7 12. Qe2 Bb7 13. h4 b5 14. Rd1 Qb8 15. Ne3 h6 16. h5 Kh8 17. Ng4 f5 18. exf5 exf5 19. Ngh2 f4 20. g4 Qe8 21. b3 Rd8 22. Ba3 Nd5 23. Qc2 b4 24. cxb4 Ncxb4 25. Bxb4 Nxb4 26. Qxc5 Nc6 27. Nh4 1-0

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.22"]
[Round "2"]
[White "Seitz, Patrick"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2186"]
[BlackElo "2434"]
[PlyCount "85"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Bc4 Nf6 5. Nc3 0-0 6. Bb3 Bg4 7. Be3 Nc6 8. Qd2 Bxf3 9. gxf3 Na5 10. Bh6 c5 11. h4 Nxb3 12. axb3 cxd4 13. Nd5 Nxd5 14. exd5 Bxh6 15. Qxh6 e5 16. h5 g5 17. 0-0-0 f6 18. f4 exf4 19. Rhe1 Qd7 20. Re6 Qg7 21. Qxg7+ Kxg7 22. Rxd6 Rad8 23. Rxd8 Rxd8 24. Rxd4 Kh6 25. b4 b5 26. b3 g4 27. c4 Kg5 28. c5 g3 29. fxg3 fxg3 30. Rd2 Kf4 31. c6 Ke5 32. c7 Rc8 33. d6 Ke6 34. Kd1 g2 35. Rxg2 Kxd6 36. Rf2 Ke6 37. Rc2 Kd7 38. Rf2 Rf8 39. Rf5 Kxc7 40. Rxb5 Rd8+ 41. Ke2 Re8+ 42. Kd3 Re5 43. Ra5 1/2-1/2

[Event "Pardubice Czech op-A 31st"]
[Site "Pardubice"]
[Date "2020.09.21"]
[Round "1"]
[White "Koziak, Vitali"]
[Black "Dehmel, Jens"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2434"]
[BlackElo "2040"]
[PlyCount "61"]
[EventDate "2020.09.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. Qc2 Nbd7 6. d4 b6 7. Bd3 Bb7 8. 0-0 Be7 9. b3 dxc4 10. bxc4 c5 11. d5 exd5 12. cxd5 Nxd5 13. Nxd5 Bxd5 14. Rd1 Bf6 15. Bb5 Be6 16. Bxd7+ Bxd7 17. Qe4+ Kf8 18. Rxd7 Qxd7 19. Qxa8+ Ke7 20. Qe4+ Kf8 21. Nd4 cxd4 22. exd4 h6 23. Qa8+ Bd8 24. d5 f6 25. Bf4 Kf7 26. Qc6 Qxc6 27. dxc6 Be7 28. Rd1 Rc8 29. c7 Ke6 30. g4 Bb4 31. Rd8 1-0

[Event "Katowice POL-HUN rapid 8th"]
[Site "Katowice"]
[Date "2020.09.13"]
[Round "9.8"]
[White "Barski, Radoslaw"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2446"]
[BlackElo "2434"]
[PlyCount "69"]
[EventDate "2020.09.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. g3 b5 4. Bg2 Bb7 5. Nge2 b4 6. Na4 e6 7. d4 Nf6 8. d5 exd5 9. exd5 d6 10. 0-0 Be7 11. b3 0-0 12. Bb2 Nbd7 13. h3 Re8 14. g4 Nb6 15. Nxb6 Qxb6 16. Ng3 Nd7 17. Qd2 Bf8 18. Nf5 Ne5 19. Rae1 Rad8 20. f4 Ng6 21. Kh2 a5 22. c4 Bc8 23. Qf2 Qc7 24. Ng3 Qd7 25. f5 Ne5 26. Bxe5 Rxe5 27. Rxe5 dxe5 28. Ne4 Qc7 29. g5 a4 30. Qh4 axb3 31. axb3 Bd7 32. g6 fxg6 33. fxg6 h6 34. Rf7 Qc8 35. Qxh6 1-0

[Event "Katowice POL-HUN rapid 8th"]
[Site "Katowice"]
[Date "2020.09.13"]
[Round "8.6"]
[White "Koziak, Vitali"]
[Black "Jakubowski, Krzysztof"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2434"]
[BlackElo "2481"]
[PlyCount "67"]
[EventDate "2020.09.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 g6 6. d5 exd5 7. cxd5 Bg7 8. g3 0-0 9. Bg2 a5 10. 0-0 Re8 11. Bf4 Na6 12. Rc1 Ne4 13. Nxe4 Rxe4 14. d6 c6 15. Ng5 Re8 16. Qb3 Rf8 17. e4 Rb8 18. e5 Nc5 19. Qc2 Ba6 20. Rfd1 h6 21. Nf3 Ne6 22. h4 g5 23. hxg5 hxg5 24. Be3 f5 25. exf6 Qxf6 26. Nd4 Rbe8 27. b4 Nf4 28. b5 Nxg2 29. Kxg2 cxb5 30. Qb3+ Rf7 31. Rc7 Rxe3 32. Qxe3 Qxd6 33. Nxb5 Qxd1 34. Qe8+ 0-1

[Event "Katowice POL-HUN rapid 8th"]
[Site "Katowice"]
[Date "2020.09.13"]
[Round "6.7"]
[White "Koziak, Vitali"]
[Black "Redzisz, Michal"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2434"]
[BlackElo "2164"]
[PlyCount "67"]
[EventDate "2020.09.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. e4 Nc6 6. Be3 Nf6 7. Nc3 d6 8. Be2 0-0 9. 0-0 Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 Nd7 13. Be3 a5 14. Rab1 Nc5 15. b3 e6 16. a3 Be5 17. Kh1 Qh4 18. Bg1 g5 19. b4 axb4 20. axb4 Na4 21. Nd1 g4 22. fxg4 Bxe4 23. Rb3 f5 24. Nf2 Bc6 25. Rh3 Qe7 26. gxf5 Rxf5 27. Ng4 Rxf1 28. Bxf1 Qg7 29. Nxe5 Qxe5 30. Bd4 Qf5 31. Rg3+ Kf8 32. Qh6+ Ke8 33. Rg8+ Kd7 34. Qg7+ 1-0

[Event "Katowice POL-HUN rapid 8th"]
[Site "Katowice"]
[Date "2020.09.13"]
[Round "7.2"]
[White "Miton, Kamil"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2590"]
[BlackElo "2434"]
[PlyCount "133"]
[EventDate "2020.09.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. 0-0 d6 6. a4 g6 7. c3 Bg7 8. Nbd2 0-0 9. Re1 d5 10. Ba2 Be6 11. b4 a6 12. Qc2 Re8 13. b5 axb5 14. axb5 Na5 15. Nxe5 dxe4 16. Bxe6 Rxe6 17. d4 c5 18. bxc6 Nxc6 19. Nxc6 Rxc6 20. Rxa8 Qxa8 21. Nxe4 Nxe4 22. Rxe4 Qa1 23. Qb2 Qa5 24. Bd2 Rb6 25. Qc1 Qa2 26. Re1 Rb2 27. Be3 Rc2 28. Qb1 Qxb1 29. Rxb1 Rxc3 30. Rxb7 Bxd4 31. Bxh6 Rc2 32. Be3 Bxe3 33. fxe3 Re2 34. Rb3 Kg7 35. Kf1 Rc2 36. e4 Rc4 37. Re3 Kf6 38. Kf2 Rc2+ 39. Kf3 Ke6 40. Rb3 Kf6 41. h4 Rc1 42. Kf4 Rf1+ 43. Rf3 Ra1 44. g4 Rb1 45. Rc3 Rf1+ 46. Rf3 Rb1 47. h5 gxh5 48. gxh5 Rh1 49. Kg4+ Kg7 50. Rh3 Rf1 51. h6+ Kh7 52. Rh4 Rf6 53. Kg5 Rg6+ 54. Kf5 Re6 55. e5 Ra6 56. Kg5 Rg6+ 57. Kf5 Ra6 58. Rh3 Rb6 59. Kg5 Rg6+ 60. Kf5 Ra6 61. Rh2 Rb6 62. Kg5 Rg6+ 63. Kf5 Ra6 64. Rh1 Rb6 65. Rh2 Ra6 66. Rd2 Rxh6 67. Ke4 1/2-1/2

[Event "Katowice POL-HUN rapid 8th"]
[Site "Katowice"]
[Date "2020.09.13"]
[Round "5.9"]
[White "Zabron, Maksym"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1932"]
[BlackElo "2434"]
[PlyCount "78"]
[EventDate "2020.09.13"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Bg5 h6 6. Be3 d6 7. f3 c5 8. Nge2 Nc6 9. dxc5 dxc5 10. Qxd8 Rxd8 11. Bxc5 Nd7 12. Ba3 Nde5 13. Nf4 Nd4 14. Rc1 e6 15. Nb5 Nec6 16. Be2 h5 17. Nh3 Bh6 18. f4 e5 19. Nxd4 Rxd4 20. 0-0 exf4 21. Bf3 Bxh3 22. gxh3 Ne5 23. b3 Rd3 24. Kg2 Nxf3 25. Rxf3 Rd2+ 26. Kg1 Rxa2 27. Bd6 Rd8 28. c5 g5 29. Rf2 Ra3 30. Rb1 Bg7 31. Rg2 Bd4+ 32. Kf1 f6 33. Bxf4 Bxc5 34. Bxg5 Kf7 35. Bh6 Ke6 36. Rc2 b6 37. Rc3 Ra2 38. Rf3 Rxh2 39. Ra1 Rh1+ 0-1

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "7.9"]
[White "Cap, Piotr"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2010"]
[BlackElo "2434"]
[PlyCount "74"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. c4 d6 7. b3 Ne4 8. Bb2 Nc6 9. e3 e5 10. d5 Ne7 11. Nfd2 Nxd2 12. Nxd2 g5 13. e4 g4 14. exf5 Nxf5 15. Ne4 Nd4 16. Bxd4 exd4 17. a4 Bf5 18. Ra2 h6 19. Re2 Qd7 20. Rfe1 Rae8 21. f3 Kh8 22. f4 Qf7 23. Nf2 h5 24. Be4 Bd7 25. Bd3 h4 26. Rxe8 Rxe8 27. Rxe8+ Qxe8 28. Ne4 Bf5 29. Qe2 Qg6 30. Nf2 h3 31. Bxf5 Qxf5 32. Qe4 Qxe4 33. Nxe4 d3 34. Kf1 Bd4 35. Ke1 Bg1 36. Kd2 Bxh2 37. Kxd3 Bg1 0-1

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "9.4"]
[White "Klekowski, Maciej"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2511"]
[BlackElo "2434"]
[PlyCount "114"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. b3 Bg4 4. Bb2 Nf6 5. e3 e6 6. Be2 Nbd7 7. 0-0 Bd6 8. d3 0-0 9. Nbd2 Re8 10. h3 Bxf3 11. Nxf3 e5 12. a3 a5 13. Qc2 Qe7 14. Rfd1 Rad8 15. Qc3 d4 16. Qxa5 dxe3 17. fxe3 Ra8 18. Qc3 Bxa3 19. Rxa3 Rxa3 20. Bxa3 Qxa3 21. Ra1 Qc5 22. d4 Qe7 23. Bf1 Ne4 24. Qe1 Nd6 25. Qb4 exd4 26. exd4 Qe3+ 27. Kh1 Ne4 28. Qe1 Qf4 29. Qc1 Qg3 30. Ra2 Nf2+ 31. Rxf2 Qxf2 32. Kh2 Nf6 33. Bd3 Qe3 34. Qc2 Qf4+ 35. Kg1 Ne4 36. b4 g6 37. b5 Ng3 38. bxc6 bxc6 39. c5 Qe3+ 40. Kh2 Ne4 41. Bxe4 Qxe4 42. Qb3 Qf4+ 43. Kg1 Ra8 44. Kf2 Kg7 45. Qb2 Qf6 46. Kg1 Re8 47. Ne5 h5 48. Nd7 Qe7 49. d5+ f6 50. dxc6 Qe1+ 51. Kh2 Qf1 52. c7 Qf4+ 53. g3 Qf5 54. Nb6 Qf3 55. c8Q Re2+ 56. Qxe2 Qxe2+ 57. Kg1 Qe1+ 1/2-1/2

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "11.1"]
[White "Koziak, Vitali"]
[Black "Janik, Igor"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2434"]
[BlackElo "2470"]
[PlyCount "57"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Ne4 6. Nxe4 Bxe4 7. e3 g6 8. Bd3 Bxd3 9. Qxd3 Bg7 10. e4 0-0 11. h4 Nc6 12. h5 d6 13. hxg6 fxg6 14. Be3 Qf6 15. 0-0-0 e5 16. d5 Nd4 17. Ng5 h6 18. Bxd4 Qxg5+ 19. Be3 Qxg2 20. Rhg1 Qf3 21. Rxg6 Kh7 22. Rdg1 Rf7 23. Rxg7+ Rxg7 24. Rxg7+ Kh8 25. Rg6 Rf8 26. Rxh6+ Kg7 27. Qd1 Qg2 28. Qh1 Qg4 29. Rh7+ 1-0

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "8.6"]
[White "Koziak, Vitali"]
[Black "Nasuta, Grzegorz"]
[Result "1-0"]
[ECO "D23"]
[WhiteElo "2434"]
[BlackElo "2553"]
[PlyCount "75"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. Qb3 dxc4 5. Qxc4 Bg4 6. Bf4 Nbd7 7. e3 Bxf3 8. gxf3 e5 9. dxe5 Qa5+ 10. Nc3 Nxe5 11. Bxe5 Qxe5 12. f4 Qc5 13. 0-0-0 Qxc4 14. Bxc4 Bb4 15. Ne2 Ke7 16. Nd4 g6 17. Nf3 Ne4 18. Rhf1 Rhd8 19. a3 Ba5 20. Bd3 Nc5 21. Bc2 Bc7 22. Ng5 h6 23. Ne4 Ne6 24. Ng3 Nc5 25. f5 g5 26. Nh5 Bxh2 27. f6+ Ke6 28. b4 Na6 29. Bb3+ Ke5 30. Bxf7 Ke4 31. Bg6+ Kf3 32. f7 Be5 33. Rxd8 Rxd8 34. Rd1 Rxd1+ 35. Kxd1 Bd6 36. Nf6 Kxf2 37. Ne4+ Kxe3 38. Nxd6 1-0

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "13.2"]
[White "Koziak, Vitali"]
[Black "Piorun, Kacper"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "2434"]
[BlackElo "2596"]
[PlyCount "127"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Bf5 7. b3 Nc6 8. Bb2 d5 9. Nbd2 Be6 10. Ng5 Bc8 11. Rc1 h6 12. Ngf3 e6 13. Qc2 a5 14. a3 Re8 15. Rfd1 Bd7 16. e4 dxe4 17. Nxe4 Nxe4 18. Qxe4 Qc8 19. h4 Qd8 20. Ne5 Qe7 21. Nxd7 Qxd7 22. Rd3 Rab8 23. Rcd1 Ne7 24. Qf3 c6 25. Bc3 Qc7 26. Bd2 Rbd8 27. Bf4 Qc8 28. Be5 Nf5 29. Bh3 c5 30. Bxg7 Kxg7 31. Bxf5 exf5 32. dxc5 Rxd3 33. Qxd3 Qxc5 34. Qd4+ Qxd4 35. Rxd4 Re1+ 36. Kg2 Rb1 37. Rd5 Rxb3 38. Rxa5 b6 39. Rb5 Rxa3 40. Rxb6 Rc3 41. Rc6 h5 42. Kf1 Kf8 43. Ke2 Rc2+ 44. Ke3 Ke7 45. Rc7+ Ke6 46. f3 Rc3+ 47. Kf4 f6 48. Rc6+ Ke7 49. g4 fxg4 50. fxg4 hxg4 51. Kxg4 Rd3 52. Kf4 Rd4+ 53. Kg3 Kf7 54. Kh3 f5 55. Kg3 Rg4+ 56. Kh3 Ke7 57. c5 Kd7 58. Rd6+ Kc7 59. h5 gxh5 60. Rh6 Rg5 61. Kh4 Rg1 62. Rxh5 f4 63. Rf5 Kc6 64. Rxf4 1/2-1/2

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "10.5"]
[White "Koziak, Vitali"]
[Black "Walter, Szymon"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2434"]
[BlackElo "2288"]
[PlyCount "75"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 0-0 5. e3 d6 6. d4 a5 7. b5 Nbd7 8. Be2 e5 9. 0-0 Re8 10. a4 exd4 11. exd4 c5 12. bxc6 bxc6 13. Nc3 d5 14. cxd5 cxd5 15. Ba3 Ba6 16. Nb5 Ne4 17. Rc1 Bf8 18. Bxf8 Rxf8 19. Nc7 Bxe2 20. Qxe2 Rb8 21. Nxd5 Re8 22. Rfe1 Ndf6 23. Nxf6+ Nxf6 24. Qa6 Rxe1+ 25. Rxe1 Nd5 26. g3 Nb4 27. Qa7 Nd5 28. Re5 Nb4 29. Qxa5 Qd7 30. Rb5 Rxb5 31. Qxb5 Qd6 32. a5 h5 33. Qc5 Qb8 34. Qb6 Qf8 35. a6 Nd5 36. Qb7 Qd8 37. a7 Nb6 38. Qb8 1-0

[Event "Katowice POL-HUN blitz 8th"]
[Site "Katowice"]
[Date "2020.09.12"]
[Round "12.1"]
[White "Teclaf, Pawel"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2464"]
[BlackElo "2434"]
[PlyCount "81"]
[EventDate "2020.09.12"]
[EventType "swiss (blitz)"]
[EventRounds "13"]
[EventCountry "POL"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 d5 2. e3 Nf6 3. b3 c6 4. Bb2 Bg4 5. h3 Bh5 6. d3 e6 7. Nbd2 a5 8. a3 Nbd7 9. g4 Bg6 10. Bg2 h6 11. Qe2 Be7 12. e4 0-0 13. h4 Nxg4 14. h5 Bh7 15. 0-0-0 a4 16. b4 c5 17. b5 Bf6 18. e5 Bg5 19. Bh3 Bf5 20. Nxg5 Qxg5 21. Rhg1 d4 22. Bxg4 Bxg4 23. Rxg4 Qxe5 24. Qf3 f5 25. Rg6 Nf6 26. Nc4 Qc7 27. Rdg1 Rf7 28. b6 Qh2 29. Rh1 Qb8 30. Qg2 Qf4+ 31. Kb1 Ng4 32. f3 Ne3 33. Nxe3 dxe3 34. Rxg7+ Kf8 35. Rxf7+ Kxf7 36. Qg7+ Ke8 37. Qg8+ Kd7 38. Qxa8 Qxf3 39. Re1 e2 40. Qa5 Kc6 41. Qd2 1-0

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.29"]
[Round "8"]
[White "Basso, Pier Luigi"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "2600"]
[BlackElo "2425"]
[PlyCount "94"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. a3 Nbd7 7. Nb5 Ne8 8. e3 c6 9. Nc3 Nef6 10. h3 a6 11. Qc2 dxc4 12. Bxc4 c5 13. dxc5 Nxc5 14. Rd1 Qe8 15. b4 b5 16. Ba2 Na4 17. Nxa4 bxa4 18. Be5 a5 19. Bb1 g6 20. Qb2 Nd7 21. Bg7 axb4 22. Bxf8 Qxf8 23. axb4 Bxb4+ 24. Kf1 a3 25. Qa1 Qc5 26. Ba2 Bc3 27. Qc1 Rb8 28. Kg1 Rb2 29. Rd3 Bb4 30. Qxc5 Nxc5 31. Rd8+ Kg7 32. Rxc8 Rxa2 33. Ra8 Rb2 34. Nd4 Ne4 35. Kh2 Bd6+ 36. f4 e5 37. Rd1 exd4 38. Rxd4 f5 39. Ra6 a2 40. Rda4 Nc3 41. Rd4 Bc5 42. Rd3 Ne4 43. h4 Re2 44. h5 Bxe3 45. Rd7+ Kh6 46. Kh3 Bxf4 47. hxg6 Re3+ 0-1

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.28"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Pechac, Jergus"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2425"]
[BlackElo "2498"]
[PlyCount "98"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 0-0 9. Nc3 Bf6 10. Re1 Re8 11. Nd5 Rxe1 12. Qxe1 b6 13. g3 Bb7 14. Bg2 c6 15. Nf4 Nc4 16. c3 d5 17. d4 a5 18. a4 Qd7 19. b3 Nd6 20. Bb2 Re8 21. Qd1 Bg5 22. Nd3 Ne4 23. Ne5 Qf5 24. Qf3 Qxf3 25. Nxf3 Bd2 26. c4 f6 27. cxd5 cxd5 28. Nxd2 Nxd2 29. Bc3 Re2 30. b4 Nb3 31. Rb1 axb4 32. Bxb4 Ra2 33. Bc3 Rc2 34. Rxb3 Rc1+ 35. Bf1 Ba6 36. Bb2 Rb1 37. Kg2 Bxf1+ 38. Kf3 g5 39. Rxb6 f5 40. h4 h6 41. a5 Kf7 42. Ke3 Rd1 43. hxg5 hxg5 44. f3 Bc4 45. Kf2 Rd2+ 46. Ke1 Rg2 47. a6 Bxa6 48. Rxa6 Rxb2 49. Rd6 Rb1+ 1/2-1/2

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.27"]
[Round "6"]
[White "Pacher, Milan"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2400"]
[BlackElo "2425"]
[PlyCount "85"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 0-0 8. Qc2 h6 9. Ne2 Qc7 10. h3 Nd7 11. 0-0 Re8 12. Bd2 Nf8 13. Rae1 Bd7 14. c4 Rad8 15. c5 Be7 16. Ng3 Ne6 17. Nf5 Bf8 18. Bc4 Bc8 19. Re4 Ng5 20. Bf4 Bxf5 21. Bxc7 Bxe4 22. Qa4 Rd7 23. Ba5 Bd5 24. Re1 Ne6 25. Bc3 a6 26. Bf1 g6 27. b4 Bg7 28. Qc2 f5 29. Qb2 Red8 30. a4 Ng5 31. f3 Bxf3 32. gxf3 Nxf3+ 33. Kf2 Nxe1 34. Kxe1 Bxd4 35. Bxd4 Rxd4 36. b5 Re4+ 37. Kf2 Rf4+ 38. Kg2 Rfd4 39. Kf3 axb5 40. axb5 g5 41. b6 Rf4+ 42. Kg2 Rfd4 43. Kf3 1/2-1/2

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.26"]
[Round "5"]
[White "Koziak, Vitali"]
[Black "Mendonca, Leon Luke"]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2425"]
[BlackElo "2472"]
[PlyCount "42"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 b6 4. e3 Bb7 5. Be2 Be7 6. h3 c5 7. c3 0-0 8. 0-0 d6 9. Nbd2 cxd4 10. cxd4 Nc6 11. Rc1 a6 12. e4 b5 13. Bd3 e5 14. Be3 exd4 15. Nxd4 Ne5 16. Bb1 Re8 17. Nf5 Bf8 18. Bd4 g6 19. Ng3 Bg7 20. Re1 Nc6 21. Be3 Ne5 1/2-1/2

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.25"]
[Round "4"]
[White "O'Gorman, Tom"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "C67"]
[WhiteElo "2345"]
[BlackElo "2425"]
[PlyCount "68"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 0-0 9. Nc3 Bf6 10. Re1 b6 11. d4 Bb7 12. Bf4 Nf5 13. d5 d6 14. Qd2 Ne7 15. Bc4 Bxc3 16. bxc3 Qd7 17. a4 a6 18. Qd3 Rae8 19. a5 b5 20. Bb3 c6 21. c4 bxc4 22. Bxc4 Nxd5 23. Bxd5 cxd5 24. Qd4 Rc8 25. Qb4 Rxc2 26. Rab1 Bc6 27. Bxd6 Rd8 28. Bg3 d4 29. Qb3 d3 30. Rbd1 Ba4 31. Qb6 d2 32. Rf1 Rc6 33. Qe3 Bxd1 34. Rxd1 Rc1 0-1

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.24"]
[Round "3"]
[White "Koziak, Vitali"]
[Black "Lewtak, Damian"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2425"]
[BlackElo "2365"]
[PlyCount "42"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. e3 e6 5. Bd3 Nbd7 6. b3 Bb4+ 7. Nbd2 Ne4 8. a3 Bc3 9. Ra2 Ba5 10. Bb2 f5 11. 0-0 Qf6 12. Qc2 0-0 13. b4 Bc7 14. b5 g5 15. cxd5 exd5 16. g3 g4 17. Nh4 Nb6 18. bxc6 bxc6 19. a4 Bd7 20. f4 Rfe8 21. a5 Nxd2 1/2-1/2

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.24"]
[Round "2"]
[White "Ratsma, Midas"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2245"]
[BlackElo "2425"]
[PlyCount "74"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a4 g6 5. d4 exd4 6. Nxd4 Bg7 7. Nxc6 bxc6 8. Bd3 0-0 9. 0-0 d6 10. Bg5 h6 11. Bh4 Rb8 12. Rb1 g5 13. Bg3 Ng4 14. Be2 Ne5 15. Qd2 f5 16. f4 gxf4 17. Bxf4 Qf6 18. a5 Qg6 19. Qe3 a6 20. exf5 Bxf5 21. Bxe5 Bxe5 22. Bc4+ Kh8 23. Qf3 Bg7 24. Qe2 Bxc2 25. Rxf8+ Rxf8 26. Rf1 Rxf1+ 27. Qxf1 Qg5 28. Bxa6 Qxa5 29. Bd3 Qb6+ 30. Kh1 Bxd3 31. Qxd3 Qxb2 32. Nd1 Qe5 33. Ne3 c5 34. h3 Qa1+ 35. Kh2 Be5+ 36. g3 Qd4 37. Qb3 Qb2+ 0-1

[Event "Skalica Masters op"]
[Site "Skalica"]
[Date "2020.08.23"]
[Round "1"]
[White "Koziak, Vitali"]
[Black "De Boer, Bas"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2425"]
[BlackElo "2145"]
[PlyCount "71"]
[EventDate "2020.08.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SVK"]
[SourceTitle "CBM 198 Extra"]
[Source "ChessBase"]
[SourceDate "2020.11.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.11.30"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Qc2 g6 5. b3 Bg7 6. Bb2 0-0 7. Nc3 Re8 8. d4 Bf5 9. Bd3 Bxd3 10. Qxd3 Qa5 11. 0-0 Nbd7 12. cxd5 Nxd5 13. Nxd5 Qxd5 14. Rfd1 Rad8 15. e4 Qh5 16. Qe2 e6 17. Rac1 g5 18. h3 h6 19. Rd3 Nf8 20. Qf1 Qg6 21. Qe2 f6 22. Re1 Qf7 23. g3 Rd7 24. Nd2 Red8 25. Nc4 Ng6 26. Re3 Bf8 27. Qh5 Ne5 28. Qe2 Ng6 29. Ba1 Bb4 30. Rf1 Qg7 31. Rf3 Rf7 32. Ne3 Qf8 33. Qc4 Qd6 34. Ng4 Kg7 35. Rxf6 Rxf6 36. e5 1-0

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.21"]
[Round "9"]
[White "Gumularz, Szymon"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "2506"]
[BlackElo "2425"]
[PlyCount "90"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bg7 7. Nf3 0-0 8. a7 Rxa7 9. e4 d6 10. Be2 e6 11. 0-0 exd5 12. exd5 Bf5 13. Nd2 Na6 14. Nc4 Nb4 15. Bf4 Rd7 16. Ne3 Ne4 17. Nxe4 Bxe4 18. a3 g5 19. Bg3 f5 20. f3 Bd3 21. Bf2 Bxe2 22. Qxe2 f4 23. Nc4 Na6 24. Rae1 Kh8 25. Qd3 Nc7 26. b4 cxb4 27. axb4 Rdf7 28. Nb6 g4 29. fxg4 f3 30. Bg3 Qb8 31. Nc4 Qxb4 32. Rxf3 Rxf3 33. gxf3 Qc5+ 34. Kh1 Nb5 35. Kg2 Rc8 36. Ne3 Nd4 37. Bf2 Re8 38. Rb1 Qa5 39. Rb7 Qa4 40. Nc4 Ne2 41. Be3 Qa2 42. Kh3 Rf8 43. Qe4 Nc3 44. Qe6 Rxf3+ 45. Kh4 Bf6+ 0-1

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.20"]
[Round "8"]
[White "Koziak, Vitali"]
[Black "Godzwon, Iwo"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2425"]
[BlackElo "2347"]
[PlyCount "51"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 c5 5. g3 0-0 6. Bg2 d5 7. cxd5 Qxd5 8. Nc3 Qf5 9. Rc1 Nbd7 10. 0-0 Rb8 11. Nb5 a6 12. Na7 Qe6 13. d4 Qb6 14. Nxc8 Rfxc8 15. dxc5 Rxc5 16. Bd4 Rxc1 17. Qxc1 Qd8 18. Rd1 Rc8 19. Qa1 Qc7 20. Ne5 Nxe5 21. Bxe5 Qb6 22. Qd4 Qb5 23. Bf3 h5 24. Kg2 Kf8 25. Rd3 Kg8 26. a4 1-0

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.19"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Pacan Milej, Kosma"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2425"]
[BlackElo "2348"]
[PlyCount "74"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nc3 a6 6. dxc5 e6 7. Bd3 Bxc5 8. 0-0 Bd6 9. Bg5 h6 10. Bh4 0-0 11. Qe2 Be7 12. Rad1 Qb6 13. Rb1 Rd8 14. Bg3 Nb4 15. Be5 Bd7 16. e4 Nxd3 17. cxd3 dxe4 18. dxe4 Bb5 19. Nxb5 Qxb5 20. Rfe1 Qxe2 21. Rxe2 Rac8 22. b3 Bc5 23. h3 Kf8 24. g3 Nd7 25. Rd1 Nxe5 26. Rxd8+ Rxd8 27. Nxe5 Ke7 28. Kg2 Bd4 29. Nf3 Bc3 30. Rc2 Rd3 31. Kf1 Ba5 32. Ke2 Rc3 33. Rxc3 Bxc3 34. Kd3 Bb2 35. Ke2 Kd6 36. Ne1 Bd4 37. Nd3 g6 1/2-1/2

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.17"]
[Round "5"]
[White "Szpar, Milosz"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2348"]
[BlackElo "2425"]
[PlyCount "43"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c3 Bd7 6. 0-0 a6 7. Ba4 g6 8. Re1 Bg7 9. d4 0-0 10. Nbd2 Qe7 11. Bc2 Rae8 12. h3 h6 13. Nf1 Qd8 14. Ng3 Nh7 15. Be3 h5 16. dxe5 Nxe5 17. Nxe5 Bxe5 18. f4 Bg7 19. Qf3 Bc6 20. f5 Qh4 21. Bf2 Qg5 22. Rad1 1/2-1/2

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.16"]
[Round "4"]
[White "Koziak, Vitali"]
[Black "Seemann, Jakub"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2425"]
[BlackElo "2172"]
[PlyCount "69"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 Bg4 8. d5 Na5 9. Qd3 c5 10. h3 Bd7 11. e4 a6 12. e5 Bf5 13. Qe2 dxe5 14. Nxe5 Ne8 15. Bf4 Nd6 16. b3 Rb8 17. Rac1 b5 18. cxb5 axb5 19. g4 Bxe5 20. Bxe5 Bc8 21. Ne4 f6 22. Nxd6 exd6 23. Ba1 b4 24. g5 Bd7 25. Rfe1 Qc8 26. gxf6 Rf7 27. Qe3 Qa6 28. Qh6 Bf5 29. Re7 Rbf8 30. Qxf8+ Rxf8 31. Rg7+ Kh8 32. f7 Rxf7 33. Rxg6+ Rg7 34. Rxg7 Bd3 35. Rg3# 1-0

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.15"]
[Round "2"]
[White "Koziak, Vitali"]
[Black "Chylewski, Patryk"]
[Result "1-0"]
[ECO "B00"]
[WhiteElo "2425"]
[BlackElo "2337"]
[PlyCount "131"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. d4 b5 2. e4 a6 3. Bd3 Bb7 4. Nf3 e6 5. 0-0 c5 6. c3 d6 7. a4 c4 8. Bc2 Nd7 9. Bg5 Qc7 10. Na3 d5 11. axb5 Bxa3 12. Rxa3 axb5 13. Rxa8+ Bxa8 14. Qa1 Bc6 15. e5 h6 16. Bh4 b4 17. cxb4 Ne7 18. Qa3 Bb5 19. Ra1 Nc6 20. Qc3 0-0 21. Bb1 Rb8 22. Bg3 Qb7 23. Bf4 Ra8 24. Ra3 Ra6 25. h4 Qa7 26. Kh2 Ba4 27. Qd2 Nf8 28. Bxh6 Qe7 29. Qg5 Qxg5 30. Bxg5 Nxb4 31. Bd2 Nc6 32. Bc2 Bb5 33. Rxa6 Bxa6 34. Ba4 Na7 35. g4 Bb5 36. Bc2 Nc6 37. Kg3 Nd7 38. Bc3 Nb6 39. Kf4 Ba4 40. Bb1 Bd1 41. Ke3 Na4 42. Nh2 Na7 43. Kd2 Bb3 44. f4 Nb5 45. f5 Naxc3 46. bxc3 Na3 47. Kc1 Nb5 48. Kb2 Bd1 49. fxe6 fxe6 50. Bg6 Kf8 51. g5 Ke7 52. h5 Kf8 53. h6 gxh6 54. gxh6 Kg8 55. Kc1 Ba4 56. Kd2 Nc7 57. Nf3 Be8 58. Bxe8 Nxe8 59. Ng5 Nc7 60. Kc2 Kh8 61. Kb2 Nb5 62. Nxe6 Kh7 63. Nf4 Nc7 64. e6 Kxh6 65. e7 Kg7 66. Ne6+ 1-0

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.15"]
[Round "3"]
[White "Poley, Vladimir"]
[Black "Koziak, Vitali"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2310"]
[BlackElo "2425"]
[PlyCount "66"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. Nf3 f5 2. b4 d6 3. Bb2 e5 4. d3 g6 5. Nbd2 Bg7 6. e4 Nf6 7. c4 0-0 8. c5 Kh8 9. Be2 Nh5 10. cxd6 cxd6 11. g3 Na6 12. a3 f4 13. d4 Qe7 14. dxe5 dxe5 15. Nc4 Bh3 16. Rg1 Rad8 17. Qc2 Rc8 18. b5 fxg3 19. hxg3 Qc5 20. bxa6 b5 21. Ne3 Qxc2 22. Nxc2 Rxc2 23. Bxe5 Rxe2+ 24. Kxe2 Bg4 25. Bxg7+ Nxg7 26. Rgb1 Ne6 27. a4 b4 28. Rxb4 Rxf3 29. Kf1 Nc5 30. Rc1 Nxa6 31. Rb7 Ra3 32. Rc4 Be6 33. Rd4 Bg8 1-0

[Event "Ustron op-A"]
[Site "Ustron"]
[Date "2020.08.15"]
[Round "1"]
[White "Szyszylo, Rafal"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2218"]
[BlackElo "2425"]
[PlyCount "92"]
[EventDate "2020.08.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 197 Extra"]
[Source "ChessBase"]
[SourceDate "2020.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2020.09.30"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Be3 cxd4 6. cxd4 Bf5 7. Nc3 e6 8. Bb5 Nge7 9. Nge2 a6 10. Ba4 b5 11. Bb3 Na5 12. Ng3 Bg6 13. 0-0 Nc4 14. Bc1 Rc8 15. Nce2 Qb6 16. Nf4 Nf5 17. Nxg6 hxg6 18. Nxf5 gxf5 19. g3 Be7 20. h4 f6 21. exf6 Bxf6 22. Bxc4 dxc4 23. Be3 Qc6 24. Re1 Rd8 25. Qe2 g5 26. h5 Kf7 27. Rad1 Rh7 28. g4 fxg4 29. Qxg4 Rdh8 30. d5 exd5 31. Qf5 Rxh5 32. Bd4 g4 33. Qf4 Kg6 34. Kg2 Rf5 35. Qg3 Bh4 36. Qe3 Bf6 37. Rh1 Rf3 38. Qd2 Rxh1 39. Qc2+ Rf5 40. Kxh1 Qe6 41. Kg1 g3 42. Bxf6 gxf2+ 43. Kg2 Qxf6 44. Rf1 Qg5+ 45. Kh1 Qh4+ 46. Kg2 Qe4+ 0-1

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.22"]
[Round "9"]
[White "Koziak, Vitali"]
[Black "Malyovanyi, Yulian"]
[Result "1/2-1/2"]
[ECO "D07"]
[WhiteElo "2445"]
[BlackElo "2154"]
[PlyCount "65"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 Nf6 5. e4 Bg4 6. Be3 e6 7. Bxc4 Bb4 8. Qd3 0-0 9. Nd2 e5 10. d5 Ne7 11. f3 Bd7 12. a3 Bd6 13. Nb5 a6 14. Nxd6 cxd6 15. 0-0-0 Nh5 16. Qb3 b5 17. Bf1 f5 18. Kb1 Nf6 19. Bd3 fxe4 20. Nxe4 Nxe4 21. Bxe4 Bf5 22. Rc1 Qd7 23. Qd3 Bxe4 24. Qxe4 Rac8 25. Bg5 Rxc1+ 26. Rxc1 Rc8 27. Bxe7 Rxc1+ 28. Kxc1 Qxe7 29. Qc2 h6 30. Qc8+ Kh7 31. Qxa6 Qg5+ 32. Kb1 Qxg2 33. Qxd6 1/2-1/2

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.21"]
[Round "8"]
[White "Borisenko, Viacheslav"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2292"]
[BlackElo "2445"]
[PlyCount "31"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nc6 5. Qe2 Bg4 6. d3 e6 7. Nbd2 Be7 8. Bb3 d5 9. Bc2 Qc7 10. h3 Bh5 11. Nf1 0-0 12. N1d2 Nd7 13. 0-0 d4 14. Ba4 dxc3 15. bxc3 Rfd8 16. Qe3 1/2-1/2

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.21"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Kushko, Dmitriy"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2445"]
[BlackElo "2305"]
[PlyCount "116"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 c6 7. Be3 Nbd7 8. a4 Qc7 9. h3 b6 10. Nd2 c5 11. d5 a6 12. Nc4 Rb8 13. Na3 Bb7 14. Bf4 Qd8 15. Qd2 Ne8 16. Rad1 Nc7 17. Bh6 Nf6 18. Bxg7 Kxg7 19. Bc4 Qd7 20. Rfe1 Rbd8 21. Bf1 Rfe8 22. Nc4 Na8 23. Qe3 Qc7 24. Qg3 Qb8 25. Ne3 Nc7 26. Qg5 Kh8 27. e5 dxe5 28. Qxe5 Kg8 29. d6 Ne6 30. Nc4 Nd7 31. Qg3 Ndf8 32. dxe7 Rxe7 33. Qxb8 Rxb8 34. Nxb6 Ree8 35. Nc4 Red8 36. Rxd8 Rxd8 37. Na5 Bc8 38. Nc6 Rd7 39. Rd1 Rxd1 40. Nxd1 Kg7 41. Ne3 Bd7 42. Ne5 Bxa4 43. Bxa6 f6 44. Nd3 Bc6 45. Bc4 f5 46. Bd5 Bb5 47. Bc4 Bxc4 48. Nxc4 Kf6 49. Kf1 g5 50. c3 h5 51. Ke2 h4 52. Nb6 g4 53. Nd5+ Kg5 54. f4+ gxf3+ 55. Kxf3 Nd7 56. N5f4 Nxf4 57. Nxf4 Ne5+ 58. Ke3 Nc4+ 1/2-1/2

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.20"]
[Round "6"]
[White "Ceres, Dragos"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2266"]
[BlackElo "2445"]
[PlyCount "35"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. exd5 Nf6 5. Nc3 Nxd5 6. Nf3 g6 7. Bb5+ Nc6 8. Qa4 Nb6 9. Bxc6+ bxc6 10. Qxc6+ Bd7 11. Qe4 Bg7 12. d4 Rc8 13. 0-0 Bc6 14. Qg4 h5 15. Qg3 Bxf3 16. Qxf3 Qxd4 17. Be3 Qg4 18. Qb7 1/2-1/2

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.20"]
[Round "5"]
[White "Koziak, Vitali"]
[Black "Galperin, Platon"]
[Result "1/2-1/2"]
[ECO "A32"]
[WhiteElo "2445"]
[BlackElo "2459"]
[PlyCount "26"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. g3 Qa5+ 5. Nbd2 cxd4 6. Nxd4 Nc6 7. Nxc6 dxc6 8. Bg2 Be7 9. 0-0 e5 10. a3 Qc7 11. b4 a5 12. Bb2 Be6 13. Bc3 axb4 1/2-1/2

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.19"]
[Round "3"]
[White "Koziak, Vitali"]
[Black "Aydincelebi, Kagan"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2445"]
[BlackElo "2263"]
[PlyCount "107"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. 0-0 a6 7. dxc5 Bxc5 8. Qxd8+ Kxd8 9. Nbd2 Ke7 10. Be2 b6 11. Ne5 Bb7 12. Ndc4 b5 13. Nd3 Ba7 14. Na5 Bd5 15. Nb4 Rc8 16. Nxd5+ exd5 17. a4 Bb6 18. Nb3 bxa4 19. Rxa4 a5 20. Bd2 Rc2 21. Bd1 Rc4 22. Ra2 a4 23. Be2 Rc7 24. Bb5 Nbd7 25. Rxa4 Rxa4 26. Bxa4 Ne4 27. Bb4+ Ke6 28. Rc1 Rxc1+ 29. Nxc1 Ne5 30. Bb3 f5 31. Bc3 Nxc3 32. bxc3 Ba5 33. Ne2 Nc4 34. Bxc4 dxc4 35. Kf1 g5 36. Ke1 Bc7 37. h3 Ke5 38. Kd2 g4 39. hxg4 fxg4 40. Ng3 Kf6 41. f4 gxf3 42. Ne4+ Kf5 43. gxf3 h5 44. Ke2 h4 45. Kf2 h3 46. Nd2 Kg5 47. Nxc4 Kh4 48. Nd2 Bb6 49. Nf1 Bc7 50. f4 Kg4 51. Nh2+ Kh4 52. Kf3 Ba5 53. c4 Be1 54. c5 1-0

[Event "Lvov Cup"]
[Site "Lvov"]
[Date "2019.08.19"]
[Round "4"]
[White "Olcum, Ahmet"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2248"]
[BlackElo "2445"]
[PlyCount "43"]
[EventDate "2019.08.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 Bg4 4. f3 Bd7 5. Nc3 c5 6. dxc5 Qa5 7. Bxb8 Rxb8 8. Qd4 b6 9. c6 Bxc6 10. b4 Qa3 11. Rb1 e6 12. Bd3 a5 13. Nb5 Qa4 14. Nc7+ Kd8 15. Na6 Rb7 16. Ne2 axb4 17. Nxb4 Bc5 18. Qh4 Bd7 19. Kf2 Ke7 20. c3 h6 21. f4 Rbb8 22. f5 1/2-1/2

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.07.02"]
[Round "9"]
[White "Koziak, Vitali"]
[Black "Sobczynski, Roman"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2473"]
[BlackElo "1849"]
[PlyCount "77"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 0-0 6. e3 b6 7. Bd3 dxc4 8. Bxc4 Bb7 9. 0-0 Ne4 10. Bxe7 Qxe7 11. Rc1 Nd7 12. Nxe4 Bxe4 13. Bb5 c5 14. Bxd7 Bxf3 15. Qxf3 Qxd7 16. dxc5 bxc5 17. Qe2 Rac8 18. Rfd1 Qa4 19. b3 Qa5 20. Qd2 Qb6 21. h3 Rfd8 22. Qc2 Rxd1+ 23. Rxd1 h6 24. Rd3 a5 25. Rc3 g6 26. Rc4 Rc7 27. a3 Rc8 28. b4 axb4 29. axb4 Rb8 30. bxc5 Qc6 31. Qa4 Qd5 32. Qc2 Qc6 33. Rd4 Rc8 34. Qc3 Kh7 35. Rf4 Kg8 36. Qf6 Qe8 37. Rd4 Qf8 38. c6 Kh7 39. Rd7 1-0

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.07.01"]
[Round "8"]
[White "Luczak, Filip"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2114"]
[BlackElo "2473"]
[PlyCount "122"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. 0-0 Nd7 5. b3 e5 6. Bb2 Bd6 7. d4 exd4 8. Nxd4 Ngf6 9. h3 Be6 10. e4 0-0 11. c4 Re8 12. exd5 cxd5 13. Nxe6 Rxe6 14. cxd5 Re8 15. Nd2 Be5 16. Bxe5 Nxe5 17. Nc4 Nxc4 18. bxc4 Qd6 19. Qa4 Nd7 20. Rab1 Nc5 21. Qa3 Rec8 22. Rb5 Rc7 23. Rfb1 g6 24. Rb6 Qd8 25. d6 axb6 26. dxc7 Qc8 27. Qb2 Qxc7 28. Qxb6 Qxb6 29. Rxb6 Rxa2 30. Bxb7 Nxb7 31. Rxb7 Rc2 32. Rc7 g5 33. Kg2 Rc3 34. c5 Kg7 35. c6 Kf6 36. Rc8 h6 37. h4 gxh4 38. gxh4 h5 39. f3 Rc2+ 40. Kg3 Rc4 41. Rc7 Kg6 42. Rc8 Kf6 43. Rh8 Kg6 44. Rg8+ Kh7 45. Rc8 Kg6 46. c7 Kf6 47. Rh8 Rxc7 48. Rxh5 Rc8 49. Kg4 Rc4+ 50. Kg3 Ra4 51. Rb5 Kg6 52. Re5 Rb4 53. Rg5+ Kf6 54. Rg4 Rb5 55. Rf4+ Kg6 56. Kg4 Rb1 57. h5+ Kg7 58. Kg5 Rb6 59. h6+ Rxh6 60. Rxf7+ Kxf7 61. Kxh6 Kf6 1/2-1/2

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.29"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Jaroch, Karol"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2473"]
[BlackElo "2242"]
[PlyCount "34"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 b6 6. Bg2 Bb7 7. Nc3 0-0 8. 0-0 d6 9. Rc1 Nbd7 10. d5 Rae8 11. Nd4 Ne5 12. b3 Bxc3 13. Bxc3 exd5 14. Nf5 Qe6 15. Ne3 Neg4 16. Nxg4 Nxg4 17. e3 c5 1/2-1/2

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.28"]
[Round "6"]
[White "Cukrowski, Filip"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2421"]
[BlackElo "2473"]
[PlyCount "78"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. b3 h6 10. h3 Bd7 11. Nc3 Kc8 12. Bb2 Ne7 13. Rad1 Ng6 14. Rd2 Be7 15. Ne4 Nf4 16. Ng3 c5 17. e6 Nxe6 18. Nf5 Re8 19. Ne5 Bf6 20. Rfd1 Bxe5 21. Bxe5 Nf8 22. Rxd7 Nxd7 23. Bxg7 h5 24. h4 Re4 25. f3 Re6 26. g4 hxg4 27. h5 b6 28. h6 Nf6 29. Bxf6 Rxf6 30. fxg4 Kb7 31. Kg2 Rh8 32. Kg3 Rhxh6 33. Nxh6 Rxh6 34. Rf1 Rh7 35. c4 Kc6 36. Rf6+ Kd7 37. Kg2 Ke7 38. Rc6 Kd7 39. Rf6 Ke7 1/2-1/2

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.27"]
[Round "5"]
[White "Koziak, Vitali"]
[Black "Grzesik, Gracjan"]
[Result "1-0"]
[ECO "B14"]
[WhiteElo "2473"]
[BlackElo "1973"]
[PlyCount "103"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 cxd4 5. exd4 d5 6. Nc3 Bb4 7. cxd5 Nxd5 8. Qc2 Nc6 9. Bd3 h6 10. 0-0 0-0 11. Ne4 Qb6 12. a3 Be7 13. Be3 e5 14. dxe5 Nxe3 15. fxe3 Bg4 16. Qc3 Rac8 17. Nd6 Bxd6 18. exd6 Qxe3+ 19. Kh1 Qe6 20. Rad1 Bxf3 21. gxf3 Ne5 22. Qd4 Rfd8 23. Be4 Nc6 24. Qd5 Qxd5 25. Rxd5 g6 26. Rg1 Kf8 27. h4 h5 28. f4 f5 29. Bb1 Kf7 30. Ba2 Kg7 31. Rxf5 Rxd6 32. Rxh5 Nd4 33. Rd5 Rxd5 34. Bxd5 b6 35. h5 Rc5 36. Rxg6+ Kh7 37. Rd6 Ne2 38. h6 Rc8 39. Rf6 Rd8 40. Be4+ Kh8 41. Kg2 Rg8+ 42. Kf3 Nd4+ 43. Ke3 Rd8 44. Rf7 a5 45. Rb7 b5 46. f5 Kg8 47. f6 Kh8 48. Re7 b4 49. Rh7+ Kg8 50. f7+ Kf8 51. Rh8+ Ke7 52. Rxd8 1-0

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.26"]
[Round "4"]
[White "Swicarz, Maciej"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2341"]
[BlackElo "2473"]
[PlyCount "60"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 e5 4. e3 Nf6 5. d4 cxd4 6. exd4 e4 7. Ng5 Bb4 8. d5 Ne5 9. Qd4 d6 10. Ngxe4 Nxe4 11. Qxe4 0-0 12. Be2 Re8 13. 0-0 Bxc3 14. bxc3 b6 15. Bd1 Ba6 16. Ba4 Re7 17. Bb5 Bxb5 18. cxb5 Rc7 19. f4 Nd7 20. Ba3 Nf6 21. Qd3 Rac8 22. Bb4 Rc4 23. a4 Ne4 24. Ra3 f5 25. g3 h5 26. Kg2 Qf6 27. Rf3 Rxb4 28. cxb4 Qb2+ 29. Kg1 Rc1+ 30. Rf1 Qf2+ 0-1

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.25"]
[Round "3"]
[White "Koziak, Vitali"]
[Black "Kopaczewski, Adam"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2473"]
[BlackElo "2046"]
[PlyCount "113"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. Qc2 Bb7 6. a3 Bxc3+ 7. Qxc3 h6 8. e3 d6 9. Be2 Nbd7 10. 0-0 0-0 11. b4 c5 12. Bb2 Ne4 13. Qb3 cxd4 14. Bxd4 Rc8 15. Rfd1 Qc7 16. Rac1 Rfd8 17. Bb2 a6 18. Nd4 Nef6 19. f3 Qb8 20. e4 Re8 21. Bf1 Red8 22. Rc2 Ne8 23. Rcd2 Qc7 24. Qe3 Ne5 25. Rc1 Nd7 26. Nb3 Qb8 27. Rcd1 Qc7 28. Rd4 Ne5 29. Rc1 Nd7 30. Qd2 Kf8 31. Rd1 Kg8 32. Rc1 Kf8 33. a4 Kg8 34. a5 Bc6 35. Kh1 Rb8 36. Ba3 Ne5 37. axb6 Qxb6 38. Na5 Rdc8 39. Rb1 Qa7 40. b5 axb5 41. cxb5 d5 42. f4 Ng4 43. Nxc6 Rxc6 44. exd5 exd5 45. Bb2 Rcc8 46. Ra1 Qc5 47. Qb4 Qxb4 48. Rxb4 Nd6 49. Bd4 Nf5 50. Ba7 Rb7 51. b6 Ra8 52. Rbb1 Nge3 53. Bb5 Nd4 54. Ba6 Rbxa7 55. bxa7 Nc6 56. Bb7 Rxa7 57. Bxc6 1-0

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.24"]
[Round "2"]
[White "Puksza, Andrzej"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "1973"]
[BlackElo "2473"]
[PlyCount "76"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Nf3 Nc6 7. Bc4 dxe5 8. dxe5 Ndb4 9. Qxd8+ Nxd8 10. Na3 a6 11. Bd2 e6 12. 0-0 b5 13. Be2 Bb7 14. Rfc1 Be7 15. Nc2 Nd5 16. Nfd4 Nc6 17. Nxc6 Bxc6 18. Ne3 Kd7 19. Bf3 Rac8 20. Nxd5 Bxd5 21. Bxd5 exd5 22. Be3 Rxc1+ 23. Rxc1 Rc8 24. Rxc8 Kxc8 25. Kf1 Kd7 26. Ke2 g5 27. f4 gxf4 28. Bxf4 Ke6 29. Kd3 Bd8 30. g3 Bc7 31. Kd4 Bb6+ 32. Kd3 Kf5 33. h3 h5 34. h4 Bf2 35. Ke2 Bd4 36. Bc1 Kg4 37. Bf4 Bxb2 38. Kd3 Kf5 0-1

[Event "Baltic Pearl op 15th"]
[Site "Lazy"]
[Date "2019.06.23"]
[Round "1"]
[White "Koziak, Vitali"]
[Black "Zabron, Maksym"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2473"]
[BlackElo "1804"]
[PlyCount "89"]
[EventDate "2019.06.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 191 Extra"]
[Source "ChessBase"]
[SourceDate "2019.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2019.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. Be3 Nc6 8. d5 Ne7 9. Nd2 Ne8 10. 0-0 f5 11. f3 f4 12. Bf2 g5 13. c5 Rf6 14. Nc4 Rg6 15. cxd6 cxd6 16. Nb5 b6 17. a4 Ba6 18. Qb3 Bxb5 19. Qxb5 h5 20. a5 Nc7 21. Qb3 b5 22. Na3 a6 23. Rfc1 Qd7 24. Bb6 Rc8 25. h3 Ne8 26. Bxb5 axb5 27. Qxb5 Nf6 28. Qxd7 Nxd7 29. Rxc8+ Nxc8 30. Bf2 Rf6 31. Nc4 Rf8 32. a6 Kf7 33. a7 Nxa7 34. Rxa7 Ke7 35. Nb6 Rd8 36. Rc7 Ke8 37. Nc8 Bf8 38. b4 Nb8 39. b5 Rd7 40. b6 Kd8 41. Rc4 Rb7 42. Na7 Kd7 43. Nc6 Na6 44. Ra4 Nb8 45. Na5 1-0

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.26"]
[Round "9"]
[White "Koziak, Vitali"]
[Black "Plichta, Kamil"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2476"]
[BlackElo "2337"]
[PlyCount "11"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 1/2-1/2

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.25"]
[Round "8"]
[White "Urban, Klaudiusz"]
[Black "Koziak, Vitali"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2424"]
[BlackElo "2476"]
[PlyCount "11"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4 5. Qb3 Qb6 6. Nc3 1/2-1/2

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.24"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Sieciechowicz, Marcin"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "2476"]
[BlackElo "2424"]
[PlyCount "9"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. d4 d5 4. cxd5 cxd5 5. Nc3 1/2-1/2

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.23"]
[Round "6"]
[White "Chojnacki, Krzysztof"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2352"]
[BlackElo "2476"]
[PlyCount "64"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 c6 6. e3 Bf5 7. g4 Be6 8. h3 Nf6 9. Bd3 c5 10. Nge2 Nc6 11. Kf1 0-0 12. Kg2 a6 13. Rc1 c4 14. Bb1 b5 15. Ng3 Bd6 16. Bxd6 Qxd6 17. g5 Nd7 18. Qh5 g6 19. Qh6 f5 20. h4 Nd8 21. h5 Nf7 22. hxg6 Nxh6 23. Rxh6 f4 24. Nf5 f3+ 25. Kf1 Rxf5 26. Bxf5 Nf8 27. gxh7+ Kh8 28. Bxe6 Nxe6 29. Ke1 b4 30. Na4 Qe7 31. Kd2 Nxg5 32. Rg1 Ne4+ 0-1

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.22"]
[Round "5"]
[White "Koziak, Vitali"]
[Black "Kulon, Klaudia"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2476"]
[BlackElo "2355"]
[PlyCount "137"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 h6 7. Be3 e5 8. d5 a5 9. Qd2 Kh7 10. h4 c6 11. h5 g5 12. f3 cxd5 13. cxd5 Bd7 14. g4 Na6 15. Bb5 Nc5 16. Nge2 Bxb5 17. Nxb5 Qd7 18. Bxc5 dxc5 19. a4 Rfc8 20. Rc1 Ne8 21. Rc4 Bf8 22. Kf2 Ra6 23. Kg2 Nc7 24. Nxc7 Rxc7 25. Nc3 Bd6 26. Nb5 Rc8 27. Rhc1 Raa8 28. R1c3 b6 29. Rb3 Rab8 30. Na3 Rb7 31. Rb5 Rcb8 32. Nc2 Kg7 33. Ne3 Kh7 34. Rc2 Kg7 35. Nc4 Kh7 36. Rc3 Kg7 37. Rcb3 Qc7 38. Kf1 Kh7 39. Qc2 Kg7 40. Ke2 Kh7 41. Rd3 Qd7 42. Na3 Kg7 43. Nc4 Kh7 44. Kd1 Kg7 45. Kc1 Kh7 46. Kb1 Kg7 47. Ne3 Kh7 48. Qc4 Qd8 49. Ka2 Qd7 50. Nc2 Kg7 51. Na3 Kf8 52. Rbb3 Ke7 53. Rb5 Kf8 54. Nc2 Kg7 55. Rc3 Kf8 56. Qb3 Qc7 57. Ne3 Kg8 58. Qc4 Kh7 59. Rbb3 Qd8 60. Qb5 Rc7 61. Nc4 Rcc8 62. Qa6 Bc7 63. d6 Bxd6 64. Rd3 Rc6 65. Nxa5 Rc7 66. Rxb6 Ra8 67. Qb5 Rxa5 68. Qxa5 Rc6 69. Ra6 1-0

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.21"]
[Round "4"]
[White "Nowak, Mikolaj"]
[Black "Koziak, Vitali"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2101"]
[BlackElo "2476"]
[PlyCount "158"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. g3 Nc6 4. Bg2 g6 5. Nge2 Bg7 6. 0-0 d6 7. d3 Nge7 8. Be3 Nd4 9. Qd2 0-0 10. Nd1 d5 11. c3 Nxe2+ 12. Qxe2 b6 13. f4 d4 14. Bd2 dxc3 15. bxc3 Ba6 16. Nf2 Qd7 17. Rfd1 Rad8 18. Bf1 e5 19. fxe5 Bxe5 20. Bh6 Bxc3 21. Bxf8 Rxf8 22. Rac1 Bd4 23. Kh1 f5 24. Bh3 Qd6 25. exf5 Bb7+ 26. Bg2 Bxg2+ 27. Kxg2 Nxf5 28. Ne4 Qd5 29. Kh1 Ne3 30. Re1 Qd7 31. Qd2 Qh3 32. Ng5 Qg4 33. Rxe3 Qxg5 34. Rce1 Bxe3 35. Rxe3 Qf5 36. Re1 Rd8 37. Rd1 Qd5+ 38. Kg1 Qd4+ 39. Kg2 c4 40. Qe2 Qd5+ 41. Kg1 cxd3 42. Rxd3 Qc5+ 43. Kg2 Qc6+ 44. Kg1 Re8 45. Qf2 Qc4 46. Rd2 Qe4 47. Rd1 Qe3 48. Qxe3 Rxe3 49. Rd8+ Kf7 50. Rd7+ Re7 51. Rd6 Ke8 52. Kf2 Rd7 53. Re6+ Kd8 54. Re2 Kc7 55. Kf3 Kc6 56. Kg4 Kc5 57. Kg5 b5 58. Kh6 Kb4 59. Re3 a5 60. h4 Kc4 61. Re4+ Kc3 62. Re5 Rb7 63. g4 a4 64. a3 Kb2 65. Re3 b4 66. axb4 a3 67. b5 a2 68. Re2+ Ka3 69. Re3+ Ka4 70. Re1 Kxb5 71. Ra1 Ra7 72. Rxa2 Rxa2 73. Kxh7 Kc6 74. Kxg6 Kd7 75. h5 Ke7 76. h6 Kf8 77. Kh7 Ra7+ 78. Kh8 Kf7 79. h7 Ra8# 0-1

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.20"]
[Round "3"]
[White "Koziak, Vitali"]
[Black "Raczynski, Krzysztof"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2476"]
[BlackElo "2111"]
[PlyCount "99"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d6 6. b3 Nc6 7. Bb2 e5 8. dxe5 Ng4 9. Qc1 Ngxe5 10. Nxe5 dxe5 11. Rd1 Bd7 12. Nc3 Qc8 13. Nd5 Re8 14. Rd2 Be6 15. c4 Nd4 16. e3 Nf5 17. Qc2 h5 18. h3 Ne7 19. Kh2 h4 20. Nxe7+ Rxe7 21. gxh4 Bf5 22. Qd1 e4 23. Qc2 Qe6 24. Rad1 Be5+ 25. Bxe5 Qxe5+ 26. Kg1 Kg7 27. Qb2 Qxb2 28. Rxb2 Rh8 29. Kh2 Rxh4 30. Rd8 Rh8 31. Rxh8 Kxh8 32. Rd2 Kg7 33. h4 f6 34. Rd8 Kf7 35. Bh3 Ke6 36. Rd4 Ke5 37. Rd5+ Ke6 38. Bg2 c6 39. Rd8 Ke5 40. Kg3 Be6 41. Bf1 Rh7 42. Bg2 g5 43. hxg5 Rg7 44. f4+ exf3 45. Bxf3 Rxg5+ 46. Kf2 Rg7 47. Re8 f5 48. Ra8 a6 49. Re8 Rh7 50. Bg2 1/2-1/2

[Event "Poznan op 26th"]
[Site "Poznan"]
[Date "2018.08.19"]
[Round "1"]
[White "Koziak, Vitali"]
[Black "Lisiecki, Robert"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2476"]
[BlackElo "1759"]
[PlyCount "49"]
[EventDate "2018.08.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POR"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. Be3 Nc6 8. d5 Ne7 9. Nd2 Ne8 10. 0-0 f5 11. f3 f4 12. Bf2 g5 13. c5 Bd7 14. Qb3 Qc8 15. Bb5 Bxb5 16. Nxb5 a6 17. Na3 Rf6 18. Nac4 Rg6 19. Rfc1 g4 20. cxd6 Nxd6 21. Nxd6 Rxd6 22. Nc4 Rg6 23. Nb6 Rxb6 24. Bxb6 c6 25. d6+ 1-0

