[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.07"]
[Round "9"]
[White "Kozak, Leonid"]
[Black "Lyapka, Ruslan"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2229"]
[BlackElo "2066"]
[PlyCount "86"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d3 d6 5. c3 Nf6 6. Qe2 Bg4 7. Nbd2 Qd7 8. h3 Bh5 9. g4 Bg6 10. Nf1 0-0-0 11. Ng3 h5 12. g5 Nh7 13. h4 Nf8 14. b4 f5 15. gxf6 Bxf6 16. a4 Ne7 17. Bb3 Ne6 18. d4 Nf4 19. Bxf4 exf4 20. Nf5 Nxf5 21. exf5 Bxf5 22. 0-0-0 Rhe8 23. Qd2 Qc6 24. Ng5 Bxg5 25. hxg5 Qe4 26. Bc2 Qxc2+ 27. Qxc2 Bxc2 28. Kxc2 g6 29. Rde1 Kd7 30. Rxe8 Rxe8 31. Kd3 d5 32. Rh4 Rf8 33. Ke2 Rf5 34. Kf3 Ke6 35. a5 Rxg5 36. Kxf4 Rg1 37. Rh3 g5+ 38. Ke3 h4 39. Rh2 Kf5 40. f3 Rg3 41. Rh1 g4 42. Rxh4 Rxf3+ 43. Kd2 Rh3 0-1

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.06"]
[Round "7"]
[White "Kozak, Leonid"]
[Black "Mirzoev, Emil"]
[Result "1/2-1/2"]
[ECO "D26"]
[WhiteElo "2229"]
[BlackElo "2474"]
[PlyCount "18"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c5 3. c4 dxc4 4. e3 cxd4 5. Bxc4 Nf6 6. 0-0 Nc6 7. exd4 e6 8. Nc3 Nb4 9. Bg5 Be7 1/2-1/2

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.06"]
[Round "8"]
[White "Terletsky, Oleg"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2154"]
[BlackElo "2229"]
[PlyCount "20"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. 0-0 0-0 10. Bg5 c6 1/2-1/2

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.05"]
[Round "5"]
[White "Kozak, Leonid"]
[Black "Zazuliak, Andriy"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2229"]
[BlackElo "2239"]
[PlyCount "51"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 d5 4. e3 c5 5. c3 Nc6 6. Nbd2 cxd4 7. exd4 Be7 8. Bd3 a6 9. 0-0 b5 10. a3 Na5 11. Ne5 Nd7 12. Bxe7 Qxe7 13. Nxd7 Bxd7 14. b4 Nc4 15. Nb3 0-0 16. Nc5 Bc6 17. Qe2 a5 18. f4 Rfe8 19. Nb3 axb4 20. axb4 Qc7 21. Qf2 g6 22. Nc5 Kg7 23. Rfe1 Rxa1 24. Rxa1 Ra8 25. Rxa8 Bxa8 26. Bb1 1/2-1/2

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.05"]
[Round "6"]
[White "Vavric, Pavel"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "E96"]
[WhiteElo "2361"]
[BlackElo "2229"]
[PlyCount "54"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 Nbd7 8. Re1 c6 9. Bf1 a5 10. b3 exd4 11. Nxd4 Nc5 12. f3 Re8 13. Be3 Qe7 14. Qd2 Nfd7 15. Rad1 h5 16. Nde2 Be5 17. g3 Nf8 18. Bg2 f5 19. f4 Bg7 20. Qxd6 Qxd6 21. Rxd6 Nxe4 22. Nxe4 fxe4 23. Bd4 a4 24. Nc3 axb3 25. axb3 Re6 26. Rd8 Bd7 27. Rxa8 Bxd4+ 1/2-1/2

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.04"]
[Round "4"]
[White "Bets, Anatolij"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2237"]
[BlackElo "2229"]
[PlyCount "18"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 0-0 6. e3 c5 7. dxc5 Bxc5 8. cxd5 exd5 9. Be2 Nc6 1/2-1/2

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.04"]
[Round "3"]
[White "Kozak, Leonid"]
[Black "Kislinsky, Alexey"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2229"]
[BlackElo "2352"]
[PlyCount "70"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d6 6. Nc3 Nbd7 7. e4 g6 8. Nf3 Rb8 9. Be2 Bg7 10. 0-0 0-0 11. h3 Qxb6 12. Qc2 Ne8 13. Rb1 Qd8 14. Bg5 h6 15. Bf4 Nc7 16. Qd2 Kh7 17. a3 a5 18. Rfd1 Ba6 19. Bxa6 Nxa6 20. Qe2 Nc7 21. e5 Nb6 22. Bh2 f6 23. exd6 exd6 24. b4 cxb4 25. axb4 a4 26. Qa2 f5 27. Nd4 Qd7 28. Rbc1 Rfe8 29. Nc6 Ra8 30. Bf4 a3 31. Na5 Na4 32. Nb1 Nb5 33. Bd2 Nb2 34. Re1 Nd3 35. Rxe8 Nxc1 0-1

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.03"]
[Round "1"]
[White "Kozak, Leonid"]
[Black "Shalimov, Valery"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2229"]
[BlackElo "2314"]
[PlyCount "20"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 a6 7. Bd3 Bg4 8. Nge2 e6 9. 0-0 Be7 10. Rc1 0-0 1/2-1/2

[Event "Omelnyk Grokhotov Memorial 10th"]
[Site "Omelnyk"]
[Date "2022.01.03"]
[Round "2"]
[White "Solovchuk, Alexey"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "E81"]
[WhiteElo "2302"]
[BlackElo "2229"]
[PlyCount "100"]
[EventDate "2022.01.03"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 Nc6 6. Nge2 0-0 7. f3 e5 8. d5 Nd4 9. Bg5 c5 10. Rb1 h6 11. Bh4 Bd7 12. a3 a5 13. 0-0 a4 14. Nb5 Qb6 15. Nbxd4 cxd4 16. Be1 Rfc8 17. Bb4 Be8 18. g3 h5 19. Kh1 Bh6 20. h3 Bd7 21. Kg2 Be3 22. Bd2 h4 23. Bxe3 dxe3 24. g4 g5 25. Nc3 Nh7 26. Re1 Nf8 27. Qc1 Ng6 28. Qxe3 Qxe3 29. Rxe3 Nf4+ 30. Kh2 Nxd3 31. Rxd3 Rxc4 32. Rbd1 Rac8 33. Kg2 Kf8 34. Kf2 Ke7 35. Ke3 f6 36. R1d2 Kd8 37. Na2 R8c5 38. Rc3 Rxc3+ 39. Nxc3 Kc7 40. Kd3 Kb6 41. Kc2 Rc4 42. Kd3 Bb5 43. Ke3 Kc5 44. Rc2 Kb6 45. Rc1 Rc5 46. Kd2 Ka5 47. Rb1 Bc4 48. Re1 Bb3 49. Rc1 Kb6 50. Ke3 Ka5 1/2-1/2

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.25"]
[Round "9"]
[White "Kushko, Dmitriy"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "2358"]
[BlackElo "2217"]
[PlyCount "83"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. d4 d6 4. g3 Nf6 5. Bg2 0-0 6. 0-0 Nbd7 7. Nc3 e5 8. e4 c6 9. h3 Qb6 10. Re1 exd4 11. Nxd4 Ne8 12. Nb3 a5 13. Be3 Qb4 14. Nd4 a4 15. a3 Qa5 16. f4 Nc5 17. Qc2 Nf6 18. Rad1 Re8 19. Bf2 Nfd7 20. Kh2 Nb6 21. Bf1 Bd7 22. Nf3 Be6 23. Rxd6 Bxc4 24. e5 Bb3 25. Qd2 Nd5 26. Bxc5 Qxc5 27. Ne4 Qc2 28. Nd4 Qxd2+ 29. Nxd2 g5 30. N2xb3 axb3 31. Bc4 gxf4 32. Bxd5 fxg3+ 33. Kxg3 cxd5 34. Kf4 Ra4 35. Rxd5 f6 36. e6 f5 37. Rg1 Kh8 38. Rxg7 Kxg7 39. Kxf5 Re7 40. Ke5 Kf8 41. Nf5 Rc7 42. Rd8# 1-0

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.24"]
[Round "8"]
[White "Kozak, Leonid"]
[Black "Mikhaletz, Lubomir"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2217"]
[BlackElo "2348"]
[PlyCount "21"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Nf3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. 0-0 1/2-1/2

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.23"]
[Round "6"]
[White "Kozak, Leonid"]
[Black "Fingerov, Dmitry"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2217"]
[BlackElo "2273"]
[PlyCount "16"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[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 1/2-1/2

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.23"]
[Round "7"]
[White "Sanduleac, Vasile"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2432"]
[BlackElo "2217"]
[PlyCount "110"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. Nbd2 a6 7. Bb3 0-0 8. h3 d5 9. exd5 Nxd5 10. Ne4 Ba7 11. 0-0 f6 12. d4 exd4 13. Nxd4 Nxd4 14. cxd4 Be6 15. Nc5 Bxc5 16. dxc5 c6 17. Qd4 Bf7 18. Re1 Re8 19. Bd2 Qc7 20. Qg4 Kh8 21. Rad1 Rad8 22. Qa4 Qd7 23. Qd4 Rxe1+ 24. Rxe1 Re8 25. Rd1 Qe7 26. f3 Qe5 27. Qxe5 Rxe5 28. Kf2 h6 29. Ba5 Kg8 30. Rd4 Kf8 31. Bd2 Re7 32. Bc2 g5 33. a4 Ke8 34. b4 Be6 35. h4 Rd7 36. Bc1 Nc3 37. Rxd7 Bxd7 38. Bd2 Nd5 39. g3 Ke7 40. Ke2 Kf7 41. hxg5 hxg5 42. Bd1 Bf5 43. g4 Bg6 44. Bb3 Ke7 45. Bxd5 cxd5 46. b5 axb5 47. axb5 Be8 48. c6 bxc6 49. b6 Kd7 50. Bb4 Kc8 51. Bc5 Kb7 52. Ke3 Bd7 53. Bd4 f5 54. gxf5 Bxf5 55. Kd2 Bg6 1/2-1/2

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.22"]
[Round "4"]
[White "Kozak, Leonid"]
[Black "Kislinsky, Alexey"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2217"]
[BlackElo "2404"]
[PlyCount "17"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nf3 Nf6 6. Qe2+ Qe7 7. Qxe7+ Kxe7 8. Bg5 Re8 9. Bf1 1/2-1/2

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.22"]
[Round "5"]
[White "Mintenko, Heorhiy"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1895"]
[BlackElo "2217"]
[PlyCount "96"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 g6 2. Bf4 Bg7 3. e3 d6 4. Nf3 Nd7 5. Bc4 Ngf6 6. h3 0-0 7. 0-0 b6 8. Nbd2 Bb7 9. Re1 c5 10. c3 Qc7 11. Bh2 e5 12. dxe5 Nxe5 13. Bf1 Rad8 14. Qe2 Nxf3+ 15. Nxf3 Qe7 16. a4 a6 17. Rad1 Ne4 18. Qc2 Qe6 19. Nd2 Nxd2 20. Rxd2 d5 21. Red1 Rd7 22. Be2 Rfd8 23. Bg4 f5 24. Bf3 c4 25. Bf4 Bf6 26. g4 d4 27. gxf5 gxf5 28. Bxb7 d3 29. Qc1 Rxb7 30. Kh2 Rg7 31. Rg1 Rdd7 32. f3 Be5 33. Rdg2 Bxf4+ 34. exf4 Rg6 35. Qd2 Re7 36. b3 b5 37. axb5 axb5 38. bxc4 bxc4 39. Qa2 Kf7 40. Qa8 Re8 41. Qa7+ Re7 42. Qa8 Kg7 43. Qb8 Rd7 44. Qc8 d2 45. Rd1 Rxg2+ 46. Kxg2 Qe2+ 47. Kg3 Qe1+ 48. Kg2 Re7 0-1

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.21"]
[Round "2"]
[White "Kozak, Leonid"]
[Black "Hulka, Valentyn"]
[Result "1/2-1/2"]
[ECO "A22"]
[WhiteElo "2217"]
[BlackElo "2150"]
[PlyCount "63"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Nc6 7. d3 Bc5 8. Qc2 0-0 9. Nf3 Bb6 10. 0-0 Re8 11. Rb1 Rb8 12. Nd2 Be6 13. Ne4 h6 14. Ba3 Qd7 15. Rfd1 Rbd8 16. Nc5 Bxc5 17. Bxc5 b6 18. Be3 Bd5 19. f3 f5 20. Qa4 f4 21. Bf2 Bf7 22. Rd2 Ne7 23. Qxd7 Rxd7 24. Bh3 Rd6 25. c4 c5 26. Rdb2 Nc6 27. Bf5 Bg6 28. Bxg6 Rxg6 29. Kg2 Ree6 30. Rb5 Nd4 31. Bxd4 exd4 32. Kf2 1/2-1/2

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.21"]
[Round "3"]
[White "Sidorika, Vladislav"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2308"]
[BlackElo "2217"]
[PlyCount "105"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. Nf3 d6 6. a3 a5 7. 0-0 e5 8. Ne1 Nge7 9. Nc2 0-0 10. d3 Rb8 11. Rb1 Be6 12. Ne3 Qd7 13. Re1 Nd4 14. Ned5 Nxd5 15. cxd5 Bh3 16. e3 Bxg2 17. Kxg2 Nf5 18. a4 Ne7 19. Qb3 b6 20. Bd2 Bh6 21. Re2 Kh8 22. Rf1 Nf5 23. Qc4 Rfe8 24. h4 Bg7 25. h5 gxh5 26. Rh1 h4 27. Qe4 hxg3 28. fxg3 Nh6 29. Rf2 f5 30. Qh4 Rg8 31. Kf1 Bf8 32. e4 Rg6 33. Qh3 Ng4 34. Rxf5 h6 35. Bg5 Be7 36. Qxg4 Bxg5 37. Qf3 Kg7 38. Rh2 Rf6 39. Rf2 Rbf8 40. Qg4 Kh7 41. Kg2 Bf4 42. Ne2 Rxf5 43. exf5 Rg8 44. Qf3 Qxf5 45. Kh1 Qg5 46. Rg2 Be3 47. Nc3 Bd4 48. Ne4 Qc1+ 49. Kh2 Rg7 50. Qf5+ Rg6 51. Nf6+ Kg7 52. Nh5+ Kh7 53. Qf7+ 1-0

[Event "Chernivtsi Masters"]
[Site "Chernivtsi"]
[Date "2021.07.20"]
[Round "1"]
[White "Bilych, Olexiy"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2288"]
[BlackElo "2217"]
[PlyCount "78"]
[EventDate "2021.07.20"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "CBM 203 Extra"]
[Source "ChessBase"]
[SourceDate "2021.09.30"]
[SourceVersion "1"]
[SourceVersionDate "2021.09.30"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. Bg5 h6 6. Bd2 Nbd7 7. g3 e5 8. Bg2 0-0 9. Qc1 Kh7 10. h4 exd4 11. Nxd4 Ne5 12. b3 Re8 13. 0-0 c6 14. Rd1 Qb6 15. Be1 Rd8 16. Rb1 a5 17. Qc2 Nfd7 18. h5 Nf8 19. hxg6+ fxg6 20. Be4 Bd7 21. Nf3 Nxf3+ 22. exf3 Be6 23. Rd3 Rd7 24. Qd2 Qc7 25. Rd1 Rad8 26. Qe3 b5 27. Bxc6 Qxc6 28. Nxb5 d5 29. Nd4 Bxd4 30. Rxd4 dxc4 31. Bc3 cxb3 32. Qe5 Rxd4 33. Bxd4 Rxd4 34. Qxd4 bxa2 35. Qa7+ Nd7 36. Qxa5 Qxf3 37. Qa4 Ne5 38. Qa7+ Nf7 39. Rd8 a1Q+ 0-1

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.03.05"]
[Round "9"]
[White "Kocyigit, Buse Naz"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2143"]
[BlackElo "2244"]
[PlyCount "17"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 1/2-1/2

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.03.04"]
[Round "8"]
[White "Kozak, Leonid"]
[Black "Kushko, Dmitriy"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2244"]
[BlackElo "2285"]
[PlyCount "106"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Nc3 c6 6. b3 Be6 7. Bb2 Nd7 8. e3 f6 9. 0-0-0 Kc7 10. Bd3 Nh6 11. h3 Nc5 12. Bc2 a5 13. Ne4 a4 14. Nxc5 Bxc5 15. Ne2 axb3 16. axb3 Nf7 17. Nc3 Nd6 18. Na4 Bb4 19. Nc3 h5 20. Kb1 h4 21. Ne4 Nf7 22. f3 Rad8 23. Rxd8 Rxd8 24. Rd1 Rxd1+ 25. Bxd1 Bf5 26. Bc2 Bxe4 27. Bxe4 Bd2 28. Bc1 Bxc1 29. Kxc1 Nd6 30. Bd3 c5 31. Kb2 Kd7 32. Kc3 b6 33. b4 g5 34. b5 f5 35. e4 Ke6 36. Kd2 fxe4 37. fxe4 Kf6 38. Ke3 g4 39. Be2 gxh3 40. gxh3 Kg5 41. Bd3 Nb7 42. Kf3 Na5 43. Bf1 Nb3 44. Ke3 Nd4 45. Bd3 Kg6 46. Bf1 Kf6 47. Bd3 Kg5 48. Bf1 Nc2+ 49. Kd2 Nb4 50. Ke3 Na2 51. Kf3 Nc1 52. Ke3 Nb3 53. Bd3 Nd4 1/2-1/2

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.03.03"]
[Round "7"]
[White "Vakulenko, Aleksandr"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E89"]
[WhiteElo "2256"]
[BlackElo "2244"]
[PlyCount "73"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. Nge2 c6 8. Qd2 Nbd7 9. d5 cxd5 10. cxd5 a6 11. a4 Nc5 12. Ra3 a5 13. Nb5 Ne8 14. Nec3 b6 15. Be2 f5 16. exf5 gxf5 17. f4 Nf6 18. 0-0 e4 19. h3 Rf7 20. Nd4 Bf8 21. Nc6 Qe8 22. Bd4 Bg7 23. Nd1 Bd7 24. Rg3 Kh8 25. Bb5 Qf8 26. b3 Nh5 27. Rg5 Nxb3 28. Bxg7+ Nxg7 29. Qc3 Nc5 30. Ne3 Qc8 31. Nc4 Qc7 32. Nd4 Nxa4 33. Bxa4 Bxa4 34. Ne6 Qa7 35. Nxd6 Rd7 36. Nxf5 Rg8 37. Nfxg7 1-0

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.03.02"]
[Round "5"]
[White "Gavrish, Leonid"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "E99"]
[WhiteElo "2085"]
[BlackElo "2244"]
[PlyCount "72"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. f3 Nf6 12. c5 f4 13. Bd2 g5 14. Rc1 Ng6 15. cxd6 cxd6 16. Nb5 Rf7 17. Qc2 Ne8 18. a4 h5 19. Nf2 a6 20. Na3 Bd7 21. Nc4 g4 22. fxg4 Nh4 23. Qb3 b5 24. Na5 bxa4 25. Qh3 Bh6 26. Nc6 Qf6 27. Nd3 hxg4 28. Bxg4 Bxg4 29. Qxg4+ Rg7 30. Qd1 Rxg2+ 31. Kh1 Qg7 32. Rg1 Nf6 33. Nf2 Kh7 34. Qf1 f3 35. Bxh6 Qxh6 36. Ne7 Qf4 0-1

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.03.02"]
[Round "6"]
[White "Kozak, Leonid"]
[Black "Boricsev, Oleg"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2244"]
[BlackElo "2234"]
[PlyCount "21"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nf3 Nc6 5. Nc3 Nf6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. 0-0 1/2-1/2

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.03.01"]
[Round "4"]
[White "Kozak, Leonid"]
[Black "Sidorika, Vladislav"]
[Result "0-1"]
[ECO "E51"]
[WhiteElo "2244"]
[BlackElo "2331"]
[PlyCount "62"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 d5 5. e3 0-0 6. Nf3 Be7 7. Rc1 a6 8. Qc2 Nbd7 9. cxd5 exd5 10. Qb3 c6 11. Bd3 Bd6 12. 0-0 Re8 13. Qc2 Qe7 14. e4 dxe4 15. Nxe4 Nxe4 16. Bxe4 Nf6 17. Bd3 h6 18. Rfe1 Be6 19. h3 Bc7 20. a3 Qd7 21. Be3 Rad8 22. Ne5 Qd6 23. Rcd1 Nd5 24. Bc1 Qe7 25. Bh7+ Kh8 26. Be4 Qf6 27. f4 Nxf4 28. Rf1 Rxd4 29. Rxd4 Qxe5 30. Rdd1 Nh5 31. g4 Bb6+ 0-1

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.02.28"]
[Round "2"]
[White "Kozak, Leonid"]
[Black "Anwesh, Upadhyaya"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2244"]
[BlackElo "2364"]
[PlyCount "82"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. cxd5 cxd5 5. Bf4 a6 6. e3 Nc6 7. Bd3 Bg4 8. Nge2 e6 9. 0-0 Be7 10. Rc1 0-0 11. Na4 Nd7 12. a3 Rc8 13. b4 e5 14. dxe5 Ndxe5 15. Bxe5 Nxe5 16. Rxc8 Bxc8 17. Nac3 g6 18. Bb1 Nc4 19. Qc1 Be6 20. Rd1 Bd6 21. g3 Qg5 22. Nf4 Nb6 23. Ne4 Qe7 24. Nxd6 Qxd6 25. Ba2 Bg4 26. Rd2 Rc8 27. Rc2 Rd8 28. Rd2 Qe5 29. Nd3 Qe7 30. Qc5 Qf6 31. Qd4 Qxd4 32. exd4 Nc4 33. Bxc4 dxc4 34. Ne5 Be6 35. d5 c3 36. Rc2 Rxd5 37. f4 f6 38. Nf3 Rd3 39. Ne1 Bb3 40. Nxd3 Bxc2 41. Nc1 Bd1 0-1

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.02.28"]
[Round "3"]
[White "Okhotnik, Vladimir"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2350"]
[BlackElo "2244"]
[PlyCount "188"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. d3 e6 5. 0-0 Be7 6. Bb3 0-0 7. c3 b6 8. Re1 Bb7 9. Nbd2 Nbd7 10. Nf1 Qc7 11. Ng3 Ne5 12. Bf4 Ng6 13. Bd2 Rfe8 14. d4 Bf8 15. Rc1 h6 16. Bc2 a6 17. Qe2 e5 18. d5 Nf4 19. Qd1 g6 20. Nf1 Bg7 21. g3 N4h5 22. Ne3 Bc8 23. Nh4 Qd8 24. a4 b5 25. Ra1 Bd7 26. f3 Kh7 27. Qe2 Qb6 28. Ra2 Qb7 29. Rea1 Reb8 30. Qf2 Kg8 31. b4 c4 32. Nhg2 Ne8 33. Ng4 Kh7 34. Qe3 Bxg4 35. fxg4 Nhf6 36. Qf3 Kg8 37. g5 hxg5 38. Bxg5 Nh7 39. Be3 Qc8 40. g4 Nc7 41. h3 Nf6 42. a5 Qd7 43. Rf1 Rf8 44. Bd1 Nh7 45. Raf2 f6 46. h4 Rf7 47. Bd2 Raf8 48. Ne3 Qd8 49. Qg3 Rd7 50. Bf3 Rff7 51. Bg2 Qf8 52. Bh3 Rde7 53. Ng2 Bh6 54. g5 fxg5 55. hxg5 Bg7 56. Nh4 Rxf2 57. Rxf2 Qe8 58. Qg4 Nf8 59. Be3 Qb8 60. Qg3 Ne8 61. Nf3 Rf7 62. Nh2 Rxf2 63. Qxf2 Qd8 64. Bg4 Nh7 65. Be6+ Kh8 66. Qf7 Nc7 67. Qxg6 Nxe6 68. dxe6 Qe7 69. Qf7 Qxf7 70. exf7 Nf8 71. Nf3 Ng6 72. Nd2 Ne7 73. g6 Bf8 74. Bg5 Kg7 75. Bxe7 Bxe7 76. Kg2 Kxg6 77. Nxc4 Kxf7 78. Na3 Bd8 79. Nc2 Ke6 80. Ne3 Bg5 81. Nd5 Kd7 82. Kf3 Kc6 83. Ke2 Bh4 84. Kd3 Bg5 85. c4 Bh4 86. Nc3 bxc4+ 87. Kxc4 Be1 88. Nd5 Bd2 89. Kd3 Be1 90. Ke2 Bh4 91. Kd2 Bg3 92. Ne7+ Kb5 93. Nd5 Kc4 94. Nc7 Kxb4 1/2-1/2

[Event "Mykolaiv IM"]
[Site "Mykolaiv"]
[Date "2021.02.27"]
[Round "1"]
[White "Bondar, Dmytro"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "2254"]
[BlackElo "2244"]
[PlyCount "73"]
[EventDate "2021.02.27"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "1"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. Nh2 d5 16. Bg5 h6 17. Bxf6 Nxf6 18. dxe5 Rxe5 19. Nf3 Re8 20. e5 Nh7 21. e6 f5 22. h4 h5 23. Nd4 Qxh4 24. Ndxf5 gxf5 25. Nxf5 Qg4 26. Qd3 Nf6 27. Re3 h4 28. e7 Bg7 29. f3 Qc4 30. Qd2 Qf4 31. Qf2 Bc8 32. Nxh4 Bh6 33. Re2 Ne4 34. fxe4 Rxe7 35. Qxf4 Bxf4 36. Bb3 c6 37. Ng6 1-0

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.29"]
[Round "9"]
[White "Kozak, Leonid"]
[Black "Osmak, Iulija"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2290"]
[BlackElo "2405"]
[PlyCount "54"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 8. f3 d6 9. e3 Nbd7 10. Bd3 c5 11. Ne2 Rc8 12. 0-0 h6 13. Bh4 cxd4 14. Qxd4 Ne5 15. Bg3 Nxd3 16. Qxd3 Ba6 17. Qxd6 Qxd6 18. Bxd6 Rfd8 19. Rfd1 Bxc4 20. Nc3 Bb3 21. Rd4 Nd5 22. Nxd5 exd5 23. Bb4 Rc2 24. Bc3 Rd6 25. Rd2 Rxd2 26. Bxd2 Rc6 27. Bc3 f6 1/2-1/2

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.28"]
[Round "8"]
[White "Gorbanovsky, Oleg"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2311"]
[BlackElo "2290"]
[PlyCount "95"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. c3 Ngf6 5. Qe2 a6 6. Ba4 b5 7. Bc2 e5 8. 0-0 g6 9. d4 Bg7 10. dxe5 dxe5 11. a4 Rb8 12. axb5 axb5 13. Na3 Qb6 14. c4 b4 15. Nb5 0-0 16. Rd1 Ne8 17. b3 f6 18. h4 Rf7 19. h5 Nf8 20. Nh4 Rd7 21. h6 Bh8 22. f4 Rxd1+ 23. Qxd1 exf4 24. Bxf4 Rb7 25. Ra8 Rd7 26. Qf3 Qb7 27. e5 fxe5 28. Be4 exf4 29. Bxb7 Bxb7 30. Qe2 Bxa8 31. Qxe8 Bc6 32. Qc8 Bf6 33. Nf3 Bxf3 34. gxf3 Be7 35. Nc7 Bf6 36. Nd5 Bd4+ 37. Kg2 Rf7 38. Qe8 Bf6 39. Kh3 Bg5 40. Kg4 Bxh6 41. Qc8 Bg7 42. Qxc5 Nd7 43. Ne7+ Kh8 44. Qc8+ Bf8 45. Qxd7 Bxe7 46. c5 Kg7 47. c6 Bc5 48. Qxf7+ 1-0

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.27"]
[Round "7"]
[White "Kozak, Leonid"]
[Black "Grinev, Valeriy"]
[Result "1/2-1/2"]
[ECO "D91"]
[WhiteElo "2290"]
[BlackElo "2398"]
[PlyCount "28"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 Ne4 6. cxd5 Nxg5 7. Nxg5 e6 8. Nf3 exd5 9. e3 0-0 10. Be2 c6 11. 0-0 Qd6 12. a3 a5 13. Na4 Nd7 14. Rc1 Re8 1/2-1/2

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.26"]
[Round "6"]
[White "Moliboga, Vladimir"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2264"]
[BlackElo "2290"]
[PlyCount "95"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. h4 h5 10. Nc1 Nh7 11. Be3 e5 12. Nb3 f5 13. d5 Ne7 14. 0-0-0 b6 15. Be2 f4 16. Bf2 Kh8 17. Na1 Rf6 18. b4 c5 19. dxc6 Nxc6 20. Nc2 Bf8 21. Kb1 Rf7 22. a3 Nf6 23. g3 fxg3 24. Bxg3 Qe8 25. Bf2 Be6 26. Be3 Kh7 27. Rhg1 Qc8 28. Nd5 Bxd5 29. cxd5 Ne7 30. Rc1 Qb7 31. Na1 Nfg8 32. Nb3 Bh6 33. Bxh6 Nxh6 34. Qg5 a5 35. b5 Rf4 36. Qg3 Nhg8 37. Nd4 Kh8 38. Ne6 Rf7 39. Rc7 Qa8 40. Rgc1 Rb7 41. Qg5 Rxc7 42. Rxc7 Qe8 43. Qe3 Nc8 44. Rc6 Nge7 45. Rc1 Rh7 46. a4 Ng8 47. f4 Nf6 48. fxe5 1-0

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.25"]
[Round "5"]
[White "Kozak, Leonid"]
[Black "Pesotsky, Vitaly"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2290"]
[BlackElo "2236"]
[PlyCount "34"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Ne2 Nf6 6. Bf4 Bxf4 7. Nxf4 Qe7+ 8. Qe2 Nc6 9. c3 Qxe2+ 10. Kxe2 Ne7 11. Na3 c6 12. Nc2 Bf5 13. Ne3 Bxd3+ 14. Nxd3 Nd7 15. f4 f6 16. Kf3 Kf7 17. Rhe1 Rhe8 1/2-1/2

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.24"]
[Round "4"]
[White "Skliarov, Viktor"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2345"]
[BlackElo "2290"]
[PlyCount "103"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Bg5 e6 9. 0-0-0 Be7 10. Rhe1 0-0 11. Kb1 Qa5 12. Qd2 Rfd8 13. Nd4 Rac8 14. f4 h6 15. Nd5 Qxd2 16. Nxe7+ Kf8 17. Rxd2 Kxe7 18. Bh4 Ke8 19. Bxf6 gxf6 20. Re3 Ke7 21. c4 Rg8 22. b3 Rg4 23. g3 h5 24. Ne2 Rgg8 25. Kb2 h4 26. Nc3 hxg3 27. hxg3 Rh8 28. b4 b6 29. Kb3 Rhd8 30. Red3 Rd7 31. Rd4 Rg8 32. R4d3 Rg4 33. Re3 Rd8 34. Ne2 e5 35. b5 Bb7 36. Kb4 Rd7 37. Rdd3 Rg8 38. Ra3 Ba8 39. Nc3 Rc8 40. Nb1 f5 41. exf5 Kf6 42. Rad3 exf4 43. gxf4 d5 44. Nd2 Rcc7 45. cxd5 Rxd5 46. Ne4+ Kxf5 47. Nd6+ Kxf4 48. Re4+ Kg5 49. Rxd5+ Bxd5 50. Re5+ Kg4 51. Rxd5 Rd7 52. Kc4 1-0

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.23"]
[Round "3"]
[White "Shevchenko, Kirill"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2244"]
[BlackElo "2290"]
[PlyCount "69"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be3 e5 7. Nf3 Qc7 8. a4 b6 9. Be2 Be7 10. 0-0 0-0 11. Qd3 Bb7 12. Nd2 Nbd7 13. Qc4 Rfc8 14. f3 d5 15. Nxd5 Nxd5 16. exd5 Qd6 17. Ne4 Qxd5 18. Qxd5 Bxd5 19. Rfd1 Be6 20. Rd2 h6 21. Rad1 Rc7 22. g4 Nc5 23. Nxc5 bxc5 24. f4 exf4 25. Bxf4 Rca7 26. Bf3 Rc8 27. h3 Bf6 28. b3 Bd4+ 29. Kg2 a5 30. Be4 g5 31. Bg3 Kg7 32. Bf2 Bxf2 33. Kxf2 c4 34. Bd5 Bxd5 35. Rxd5 1/2-1/2

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.22"]
[Round "2"]
[White "Kozak, Leonid"]
[Black "Vorontsov, Pavlo"]
[Result "1/2-1/2"]
[ECO "E39"]
[WhiteElo "2290"]
[BlackElo "2389"]
[PlyCount "124"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 0-0 6. a3 Bxc5 7. Nf3 b6 8. Bg5 Bb7 9. e4 h6 10. Bh4 Be7 11. Be2 d6 12. 0-0 Nbd7 13. Rfd1 Qc7 14. Rac1 a6 15. b4 Rac8 16. Qb1 Rfe8 17. h3 Ne5 18. Nxe5 dxe5 19. Bg3 Nd7 20. Bd3 Bg5 21. Rc2 Bf4 22. Ne2 Nf6 23. f3 Bxg3 24. Nxg3 Red8 25. Rcd2 h5 26. Qb2 Rd4 27. Ne2 Rd7 28. Nc1 Bc6 29. Bc2 h4 30. Rxd7 Nxd7 31. Bb3 Nf8 32. Qd2 Qe7 33. Ne2 Ng6 34. Qd6 Qxd6 35. Rxd6 Kf8 36. Kf2 Ke7 37. Rd2 a5 38. Ke3 Rc7 39. Rc2 Bb7 40. Rd2 Ba6 41. Rc2 Kf6 42. Rc3 Kg5 43. Rc2 f5 44. b5 Bb7 45. Rd2 Nf4 46. Nc3 Bc8 47. Na4 Bd7 48. Kf2 Rb7 49. Rd6 fxe4 50. fxe4 Be8 51. Rxb6 Rd7 52. Nc5 Rd2+ 53. Kf1 Bh5 54. Rb7 g6 55. Rd7 Rb2 56. b6 Nxg2 57. Rd3 Kf4 58. Nxe6+ Kxe4 59. Nc5+ Kf4 60. Ne6+ Ke4 61. Nc5+ Kf4 62. Ne6+ Ke4 1/2-1/2

[Event "Nabokov Memorial-B 12th"]
[Site "Kiev"]
[Date "2015.04.21"]
[Round "1"]
[White "Bajarani, Ilgar"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2311"]
[BlackElo "2290"]
[PlyCount "23"]
[EventDate "2015.04.21"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 166 Extra"]
[Source "ChessBase"]
[SourceDate "2015.06.18"]
[SourceVersion "1"]
[SourceVersionDate "2015.06.18"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Qc2 c6 8. Bd3 Nbd7 9. Nf3 Re8 10. 0-0 Nf8 11. Rab1 a5 12. a3 1/2-1/2

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.13"]
[Round "8"]
[White "Kozak, Leonid"]
[Black "Nikolaev, Leonid"]
[Result "1/2-1/2"]
[ECO "A70"]
[WhiteElo "2309"]
[BlackElo "2275"]
[PlyCount "37"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. d5 d6 5. e4 Nf6 6. Bd3 0-0 7. h3 e6 8. Nf3 a6 9. a4 exd5 10. cxd5 Re8 11. 0-0 Nh5 12. Bg5 Bf6 13. Be3 Nd7 14. Nd2 Bd4 15. Bxd4 cxd4 16. Ne2 Nc5 17. Ra3 Bd7 18. Bb1 d3 19. Bxd3 1/2-1/2

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.12"]
[Round "7"]
[White "Anwesh, Upadhyaya"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2367"]
[BlackElo "2309"]
[PlyCount "61"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be3 e5 7. Nb3 Be7 8. Qd2 Be6 9. 0-0-0 Nbd7 10. f4 Ng4 11. g3 Nxe3 12. Qxe3 Qb6 13. Qf3 exf4 14. gxf4 Bf6 15. Bh3 a5 16. Nd5 Bxd5 17. Bxd7+ Kxd7 18. Rxd5 Ke7 19. a4 Rhc8 20. Rb5 Qc6 21. Qd3 b6 22. Nd2 Rab8 23. Rd1 h6 24. b3 g5 25. Nc4 gxf4 26. Nxd6 Rd8 27. e5 Bg5 28. h4 Bxh4 29. Qh7 Rxd6 30. exd6+ Kd8 31. Qxh6 1-0

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.12"]
[Round "6"]
[White "Kozak, Leonid"]
[Black "Martynov, Pavel1111"]
[Result "1/2-1/2"]
[ECO "D76"]
[WhiteElo "2309"]
[BlackElo "2329"]
[PlyCount "84"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d5 6. cxd5 Nxd5 7. 0-0 Nb6 8. Nc3 Nc6 9. e3 Re8 10. Re1 a5 11. h3 a4 12. Rb1 Ra5 13. Bd2 Be6 14. b3 axb3 15. axb3 Qc8 16. Na4 Ra7 17. Nxb6 cxb6 18. Ng5 Bf5 19. e4 Bd7 20. d5 Ne5 21. Be3 Bb5 22. Bxb6 Ra2 23. Rc1 Qd7 24. Re3 Rc8 25. Rxc8+ Qxc8 26. Re1 Nd3 27. Rf1 Nb4 28. d6 Qd7 29. Bc5 Nd3 30. Be3 Qxd6 31. Qg4 Bd7 32. Qh4 h6 33. Nf3 g5 34. Qh5 Be6 35. h4 g4 36. e5 Nxe5 37. Nxe5 Qxe5 38. Qxe5 Bxe5 39. Bxb7 Bxb3 40. Bxh6 Bd4 41. Be3 Bxe3 42. fxe3 Re2 1/2-1/2

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.11"]
[Round "5"]
[White "Kruglyakov, Pavlo"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B60"]
[WhiteElo "2308"]
[BlackElo "2309"]
[PlyCount "95"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Nc6 9. Bxf6 gxf6 10. Nb3 Bd7 11. 0-0-0 0-0-0 12. Be2 h5 13. Rhf1 Be7 14. Rf3 Rdg8 15. Bf1 Kb8 16. Kb1 Na5 17. Nd5 exd5 18. Nxa5 Bd8 19. Nxb7 Qxb7 20. Rb3 Bb6 21. Qb4 Ka7 22. Bxa6 Qxa6 23. Ra3 Bc5 24. Rxa6+ Kxa6 25. Qb3 Rxg2 26. Qxd5 Rhg8 27. b4 Bxb4 28. Qc4+ Ka5 29. Qc7+ Ka6 30. Qxd7 Rb8 31. Qc6+ Ka5 32. Qc7+ Rb6 33. Qa7+ Kb5 34. Rd3 Bc5 35. Rb3+ Kc6 36. Qa8+ Kc7 37. Qa7+ Kc6 38. Rxb6+ Bxb6 39. Qxf7 Rxh2 40. Qd5+ Kc7 41. a4 h4 42. a5 Bc5 43. a6 h3 44. Qb7+ Kd8 45. a7 Bxa7 46. Qxa7 Rh1+ 47. Kb2 h2 48. Qh7 1-0

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.10"]
[Round "4"]
[White "Kozak, Leonid"]
[Black "Pesotsky, Vitaly"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2309"]
[BlackElo "2284"]
[PlyCount "85"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 0-0 6. 0-0 Bd7 7. Nc3 Qc8 8. e4 Bh3 9. e5 Bxg2 10. Kxg2 Nfd7 11. Re1 Nc6 12. exd6 cxd6 13. b3 Nf6 14. Bb2 e6 15. Rc1 Qd7 16. Ba3 Rfd8 17. d5 exd5 18. Nxd5 Nxd5 19. Qxd5 Ne7 20. Qxd6 Qxd6 21. Bxd6 Nc6 22. Rcd1 Bc3 23. Rf1 a5 24. a4 Rd7 25. Rd5 Re8 26. Bc5 Rc7 27. Rc1 Bb4 28. Bxb4 axb4 29. Re1 Rxe1 30. Nxe1 Re7 31. Nd3 Re2 32. Rb5 Rd2 33. Nc5 Nd4 34. Rxb4 Nc2 35. Rxb7 Ne3+ 36. Kf3 Nd1 37. Ne4 Rb2 38. a5 Kf8 39. a6 f5 40. a7 fxe4+ 41. Kxe4 Nxf2+ 42. Kf3 Ra2 43. Rb8+ 1-0

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.09"]
[Round "3"]
[White "Kernazhitsky, Leonid"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "B93"]
[WhiteElo "2305"]
[BlackElo "2309"]
[PlyCount "94"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. f4 e5 7. Nf3 Qc7 8. Bd3 Be7 9. a4 0-0 10. 0-0 Nbd7 11. Kh1 b6 12. Qe1 Bb7 13. Nh4 g6 14. f5 d5 15. Bh6 Rfe8 16. fxg6 hxg6 17. exd5 e4 18. Nxe4 Nxe4 19. Qxe4 Bf8 20. Qf4 Qxf4 21. Bxf4 Bxd5 22. Rad1 Be6 23. Be4 Rac8 24. c3 Nc5 25. Bc2 Bc4 26. Rfe1 Bd3 27. Bb1 Bxb1 28. Rxb1 Rxe1+ 29. Rxe1 Nd3 30. Rf1 Rc4 31. g3 Nxb2 32. Rb1 Nxa4 33. Be5 b5 34. Rd1 Rc8 35. Nf3 Nxc3 36. Rd7 b4 37. Rb7 Ne4 38. Nd4 a5 39. Ra7 f6 40. Bf4 Bc5 41. Rd7 g5 42. Be3 a4 43. Nf5 a3 44. Bxc5 Rxc5 45. Ne7+ Kf7 46. Nc6+ Ke6 47. Re7+ Kd6 0-1

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.08"]
[Round "2"]
[White "Kozak, Leonid"]
[Black "Terekhov, Andrey"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2309"]
[BlackElo "2327"]
[PlyCount "35"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 Nbd7 8. Bd3 Nh5 9. Bxe7 Qxe7 10. 0-0-0 Nb6 11. h3 g6 12. Nf3 Ng7 13. g4 Be6 14. Kb1 0-0-0 15. Na4 Nxa4 16. Qxa4 Kb8 17. Rc1 Ne8 18. Rc3 1/2-1/2

[Event "Nabokov Memorial-B 11th"]
[Site "Kiev"]
[Date "2013.05.07"]
[Round "1"]
[White "Kozak, Leonid"]
[Black "Grinev, Valeriy"]
[Result "1/2-1/2"]
[ECO "A67"]
[WhiteElo "2309"]
[BlackElo "2357"]
[PlyCount "59"]
[EventDate "2013.05.07"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "UKR"]
[EventCategory "3"]
[SourceTitle "CBM 154 Extra"]
[Source "ChessBase"]
[SourceDate "2013.06.25"]
[SourceVersion "2"]
[SourceVersionDate "2013.06.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nfd7 9. Bd3 0-0 10. Nf3 Nb6 11. h3 N8d7 12. 0-0 Re8 13. Re1 a6 14. Be3 Rb8 15. a4 Na8 16. Bf2 Qb6 17. Qc2 Qb4 18. Nd2 Nc7 19. Nc4 b5 20. Na2 Qxe1+ 21. Rxe1 bxc4 22. Qxc4 Rxb2 23. a5 Nb5 24. Re2 Rxe2 25. Bxe2 f5 26. e5 dxe5 27. d6+ Kh8 28. Bxc5 exf4 29. Bf2 Nxd6 30. Qc6 1/2-1/2

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.30"]
[Round "11"]
[White "Legky, Nikolay A"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2420"]
[BlackElo "2340"]
[PlyCount "93"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. d4 d5 2. c3 c5 3. Bf4 Nf6 4. e3 Qb6 5. Qc2 Nc6 6. Nd2 g6 7. Ngf3 Bg7 8. h3 0-0 9. Be2 h6 10. 0-0 Bf5 11. dxc5 Qxc5 12. Qb3 Rfe8 13. Qxb7 e5 14. Nxe5 Na5 15. Qb5 Qxb5 16. Bxb5 Reb8 17. a4 a6 18. Nc6 Re8 19. Nxa5 axb5 20. axb5 Bd3 21. Rfc1 Bxb5 22. Nf3 Ne4 23. Nb3 Ba4 24. Nfd2 f5 25. Nxe4 fxe4 26. Nd4 h5 27. Ra3 Bd7 28. Rca1 Rxa3 29. Rxa3 Bxd4 30. cxd4 Rc8 31. Ra7 Be8 32. Bc7 Kf7 33. Bd6+ Ke6 34. Bc5 Rb8 35. b4 Bb5 36. Kh2 Bf1 37. Re7+ Kf6 38. Rd7 Bc4 39. Kg3 g5 40. Rd6+ Kf5 41. Kh2 Ra8 42. b5 Ra2 43. b6 Rb2 44. Rh6 h4 45. Be7 g4 46. Rf6+ Kg5 47. Rf4+ 1-0

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.29"]
[Round "10"]
[White "Kozak, Leonid"]
[Black "Tesla, Vladimir"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2340"]
[BlackElo "2293"]
[PlyCount "28"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 Bg4 6. h3 h5 7. c3 Qd3 8. hxg4 hxg4 9. Nxe5 Bd6 10. Nxd3 Bh2+ 11. Kh1 Bg3+ 12. Kg1 Bh2+ 13. Kh1 Bg3+ 14. Kg1 Bh2+ 1/2-1/2

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.27"]
[Round "8"]
[White "Bulanov, Dmitri"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2370"]
[BlackElo "2340"]
[PlyCount "117"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. Nd5 Nbd7 10. Qd3 Bxd5 11. exd5 0-0 12. 0-0 Re8 13. c4 Bf8 14. Rac1 a5 15. Nd2 g6 16. Nb1 Nc5 17. Qc2 Nfd7 18. Nc3 f5 19. f3 Nf6 20. a3 e4 21. f4 Qb6 22. Kh1 h5 23. h3 a4 24. Nxa4 Qd8 25. Nc3 h4 26. Qd1 Bh6 27. Rc2 Qe7 28. Nb5 Rac8 29. Nd4 Nd3 30. Ne6 b5 31. b3 Ra8 32. Ra2 bxc4 33. bxc4 Nb4 34. Ra1 Na6 35. Rb1 Nd7 36. Rb7 Reb8 37. Qb3 Qe8 38. Rxb8 Rxb8 39. Qa4 Nac5 40. Qc6 Rb6 41. Qc7 Qb8 42. Bxc5 Qxc7 43. Nxc7 Nxc5 44. Nb5 Kf7 45. g4 hxg3 46. Kg2 Kf6 47. h4 Bf8 48. Kxg3 Be7 49. h5 gxh5 50. Rh1 Rb8 51. Rxh5 Rg8+ 52. Kf2 Kg6 53. Rh1 Rg7 54. Nd4 Bf8 55. Rh5 Nd3+ 56. Ke3 Ne1 57. Rg5+ Kh7 58. Rxg7+ Bxg7 59. Nxf5 1-0

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.26"]
[Round "7"]
[White "Kozak, Leonid"]
[Black "Fingerov, Dmitry"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2340"]
[BlackElo "2388"]
[PlyCount "18"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 1/2-1/2

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.25"]
[Round "6"]
[White "Gorbunov, Igor"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2250"]
[BlackElo "2340"]
[PlyCount "126"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. 0-0 Bg7 6. Re1 0-0 7. Bf1 Bg4 8. h3 Bxf3 9. Qxf3 Nc6 10. Na3 Rb8 11. Nc2 Nd7 12. a4 a6 13. Ra3 b5 14. axb5 axb5 15. b4 cxb4 16. Nxb4 Nde5 17. Qd1 Nxb4 18. cxb4 Nc6 19. d4 Bxd4 20. Bh6 Qb6 21. Qe2 Rfc8 22. Rb1 Ne5 23. h4 Bxf2+ 24. Qxf2 Qxf2+ 25. Kxf2 Ng4+ 26. Ke1 Nxh6 27. Ra5 Ng4 28. Rxb5 Ne3 29. Rxb8 Rxb8 30. b5 Kg7 31. b6 Nxf1 32. Kxf1 Kf6 33. Ke2 Ke6 34. g4 Kd7 35. Rf1 f6 36. g5 fxg5 37. hxg5 Rxb6 38. e5 dxe5 39. Rh1 Rb4 40. Rxh7 Rg4 41. Rh6 Rxg5 42. Ke3 Rg4 43. Rh8 Ke6 44. Rb8 Ra4 45. Rc8 Kf5 46. Rf8+ Kg4 47. Rf7 Ra7 48. Rf1 Ra3+ 49. Ke4 g5 50. Rg1+ Kh4 51. Kxe5 g4 52. Kf5 Rf3+ 53. Ke4 Rf7 54. Ke3 g3 55. Rh1+ Kg4 56. Rh8 g2 57. Rg8+ Kh3 58. Rh8+ Kg3 59. Rg8+ Kh2 60. Rh8+ Kg1 61. Ke2 Rf6 62. Rh7 Re6+ 63. Kd2 Re5 0-1

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.24"]
[Round "5"]
[White "Kozak, Leonid"]
[Black "Bogdanovich, Stanislav"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2340"]
[BlackElo "2479"]
[PlyCount "150"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 c6 4. e3 Be6 5. a4 Nf6 6. Na3 c5 7. Bxc4 Bxc4 8. Nxc4 Nc6 9. dxc5 Qxd1+ 10. Kxd1 Ne4 11. Ke2 Nxc5 12. Nfd2 g6 13. b3 Bg7 14. Rb1 Bc3 15. Ba3 Bb4 16. Rhc1 Na6 17. Ne4 0-0 18. Rd1 f5 19. Bxb4 Ncxb4 20. Nc3 Nc5 21. a5 Rfd8 22. Rxd8+ Rxd8 23. Ne5 Kg7 24. Na4 Ne4 25. Nc4 Rd3 26. f3 Nc3+ 27. Nxc3 Rxc3 28. Rb2 Kf6 29. Na3 Rc5 30. Nc4 Nc6 31. Ra2 Rb5 32. Ra3 e5 33. Kd3 Rd5+ 34. Kc2 a6 35. Ra1 Ke6 36. e4 fxe4 37. fxe4 Rd8 38. Rf1 Nd4+ 39. Kb2 Nb5 40. Kc2 Rd4 41. Rf8 Rxe4 42. Re8+ Kd5 43. Re7 Kc5 44. Rxh7 Re2+ 45. Kd3 Rxg2 46. Nxe5 Rb2 47. Rxb7 Rxb3+ 48. Kd2 Kb4 49. Nc6+ Kc5 50. Nb8 Ra3 51. Nxa6+ Kc4 52. Nc7 Ra2+ 53. Ke3 Nd4 54. Kf4 Rxa5 55. Rb6 Ra7 56. Ne6 Rf7+ 57. Ke4 Rf6 58. Ke5 Rf5+ 59. Ke4 Nf3 60. Rc6+ Kb4 61. Nd4 Nxd4 62. Kxd4 Rh5 63. Rc2 Kb3 64. Rd2 Kb4 65. Rb2+ Ka3 66. Re2 Kb4 67. Ke4 Kc4 68. Kf4 Kd3 69. Rg2 Rf5+ 70. Kg4 Ke4 71. Re2+ Kd5 72. Re7 Kd6 73. Rg7 Ra5 74. h4 Ke6 75. Rxg6+ Kf7 1/2-1/2

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.23"]
[Round "4"]
[White "Demidiukov, Evgeniy"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E97"]
[WhiteElo "2327"]
[BlackElo "2340"]
[PlyCount "81"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. Nf3 g6 2. c4 Bg7 3. d4 Nf6 4. Nc3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Nd2 Nd7 10. b4 f5 11. a4 Nf6 12. f3 f4 13. c5 g5 14. Nc4 Ng6 15. Ba3 Rf7 16. a5 Bf8 17. b5 dxc5 18. b6 cxb6 19. axb6 a6 20. Na4 Bd7 21. Nxc5 Bxc5+ 22. Bxc5 Rc8 23. Ba3 Ne8 24. Qb3 Bb5 25. Rfc1 Kh8 26. Qb2 Bxc4 27. Bxc4 Rf6 28. Rab1 h5 29. Kh1 g4 30. Bxa6 bxa6 31. Rxc8 Qxc8 32. b7 Qb8 33. Qc3 Nd6 34. Bxd6 Rxd6 35. Qc8+ Rd8 36. Qxd8+ Qxd8 37. b8Q Qxb8 38. Rxb8+ Kg7 39. Re8 gxf3 40. gxf3 Nh4 41. d6 1-0

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.22"]
[Round "3"]
[White "Kozak, Leonid"]
[Black "Golubev, Mikhail"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2340"]
[BlackElo "2492"]
[PlyCount "108"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 Bf5 8. Ne1 Qc8 9. e4 Bh3 10. Nc2 e5 11. d5 Ne7 12. Bxh3 Qxh3 13. f3 Nh5 14. Qe2 Qd7 15. Ne1 c5 16. Nd3 f5 17. Bd2 Rf7 18. g4 Nf6 19. Nf2 Raf8 20. Kg2 h6 21. h3 fxg4 22. fxg4 g5 23. Nh1 Ng6 24. Ng3 Nf4+ 25. Bxf4 exf4 26. Nf5 Re8 27. Rae1 Nh5 28. Nxh6+ Bxh6 29. gxh5 g4 30. hxg4 Rg7 31. Rg1 Re5 32. Kh1 Qe7 33. Ref1 Qf6 34. Rf2 Kh8 35. Qf3 Qh4+ 36. Rh2 Qe7 37. Re2 Qh4+ 38. Rh2 Qe7 39. Rgg2 Rf7 40. Re2 Bg5 41. Nd1 Bh4 42. Nf2 Bg3 43. Nd3 Rg5 44. Rhg2 Qf6 45. e5 dxe5 46. Nxe5 Rxe5 47. Rxe5 Qxe5 48. Rxg3 Qe1+ 49. Rg1 Qh4+ 50. Kg2 Rg7 51. Kf1 Re7 52. Qc3+ Kg8 53. h6 f3 54. h7+ Qxh7 0-1

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.21"]
[Round "2"]
[White "Kutsykh, Mikle"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "2295"]
[BlackElo "2340"]
[PlyCount "72"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. d5 a5 8. Bg5 h6 9. Bh4 Na6 10. Nd2 Qe8 11. a3 Bd7 12. 0-0 Nh7 13. Kh1 h5 14. f3 Bh6 15. b3 Nc5 16. Rb1 Be3 17. Nb5 g5 18. Nxc7 Qd8 19. Nxa8 gxh4 20. b4 Na4 21. Rb3 Bd4 22. f4 Nc3 23. Qe1 a4 24. Rxc3 Bxc3 25. Bxh5 Qxa8 26. f5 Qd8 27. f6 Nxf6 28. Bf3 Nh7 29. Qe3 Bd4 30. Qe2 Qg5 31. c5 dxc5 32. bxc5 Bxc5 33. Qd3 b5 34. Rc1 Qe3 35. Qxe3 Bxe3 36. Rc7 Rc8 0-1

[Event "Odessa Podgaets Memorial"]
[Site "Odessa"]
[Date "2010.11.20"]
[Round "1"]
[White "Kozak, Leonid"]
[Black "Kigel, Dmytro"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "2340"]
[BlackElo "2154"]
[PlyCount "172"]
[EventDate "2010.11.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 139 Extra"]
[Source "ChessBase"]
[SourceDate "2011.01.05"]
[SourceVersion "1"]
[SourceVersionDate "2011.01.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d6 7. Bg5 Nbd7 8. Qc2 b6 9. e4 Bb7 10. f3 c5 11. d5 Qe7 12. Be2 a6 13. Nh3 b5 14. dxe6 fxe6 15. cxb5 axb5 16. Bxb5 Ba6 17. Bxa6 Rxa6 18. 0-0 Rb8 19. Rab1 h6 20. Bh4 Qf7 21. f4 d5 22. Bxf6 Qxf6 23. Rfd1 d4 24. e5 Qf5 25. Qxf5 exf5 26. Nf2 Kf7 27. Rd3 g5 28. g3 Nf8 29. fxg5 hxg5 30. Rf3 Ke6 31. Nd3 Kd5 32. Rxf5 Ne6 33. Rff1 Ra4 34. Kf2 Rc4 35. Rfe1 Rb3 36. Rbd1 Rc2+ 37. Re2 Rxe2+ 38. Kxe2 c4 39. Nb4+ Kxe5 40. Rd2 Ke4 41. Kf2 d3 42. Na2 Rb8 43. Nc3+ Kd4 44. Ne2+ Ke5 45. Nc3 Rf8+ 46. Ke1 Nd4 47. Rf2 Nf3+ 48. Kd1 g4 49. Kc1 Kd4 50. Nd1 Rh8 51. h4 gxh3 52. Rxf3 h2 53. Rf4+ Kd5 54. Nf2 h1Q+ 55. Nxh1 Rxh1+ 56. Kd2 Rh2+ 57. Kc1 Rc2+ 58. Kb1 Rg2 59. Kc1 Rxg3 60. Rh4 Rg1+ 61. Kd2 Rg2+ 62. Kc1 Rc2+ 63. Kb1 Rf2 64. Kc1 Rf1+ 65. Kd2 Rf2+ 66. Kc1 Rc2+ 67. Kb1 Re2 68. Kc1 Re1+ 69. Kd2 Rb1 70. Rh5+ Kd4 71. Rh4+ Kd5 72. Rh5+ Kc6 73. b4 cxb3 74. Kxd3 Rc1 75. Rh2 Kb5 76. Rb2 Ka4 77. Kd2 Rc5 78. Rb1 Kxa3 79. Ra1+ Kb2 80. Ra8 Rd5+ 81. Ke2 Kb1 82. Rc8 b2 83. Rc7 Ka2 84. Ra7+ Kb3 85. Rb7+ Kc3 86. Rc7+ Kb4 0-1

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.15"]
[Round "11"]
[White "Solomaha, Andrey"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2297"]
[BlackElo "2333"]
[PlyCount "34"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 d6 6. Nf3 Nc6 7. Bc4 e6 8. Qe2 Be7 9. 0-0 0-0 10. Nc3 Nxc3 11. bxc3 dxe5 12. dxe5 Qa5 13. Bd2 Rd8 14. Rfe1 Bd7 15. Qe4 Qa4 16. Ng5 Bxg5 17. Bxg5 Rdc8 1/2-1/2

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.14"]
[Round "10"]
[White "Kozak, Leonid"]
[Black "Pesotsky, Vitaly"]
[Result "1-0"]
[ECO "E83"]
[WhiteElo "2333"]
[BlackElo "2282"]
[PlyCount "67"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Re8 9. Rb1 b5 10. cxb5 axb5 11. Nxb5 Rxa2 12. Na3 e5 13. d5 Nd4 14. Nc3 Rxa3 15. bxa3 c6 16. dxc6 d5 17. Bb5 dxe4 18. fxe4 Qa5 19. 0-0 Qxa3 20. c7 Rf8 21. Bd3 Qd6 22. Bxd4 Qxd4+ 23. Kh1 Qd7 24. Rxf6 Bxf6 25. Nd5 Bg7 26. Qa5 f5 27. Ba6 Qd6 28. Rb6 Qd7 29. Bxc8 Rxc8 30. Rb8 Kf7 31. Rxc8 Qxc8 32. Qc3 fxe4 33. Nb6 Qa6 34. Qc4+ 1-0

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.13"]
[Round "9"]
[White "Moliboga, Vladimir"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2241"]
[BlackElo "2333"]
[PlyCount "99"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 Na6 7. Qd2 e5 8. d5 c6 9. Bd1 cxd5 10. cxd5 Bd7 11. f3 b5 12. a3 Qa5 13. Nge2 Rfb8 14. Be3 Be8 15. Nc1 Qc7 16. b4 Rc8 17. N3e2 Nd7 18. Nb3 Nb6 19. Na5 f5 20. 0-0 f4 21. Bf2 Bf6 22. Bb3 Qg7 23. Rac1 Kh8 24. g3 g5 25. g4 h5 26. h3 Bd8 27. Nc3 Nb8 28. Qd3 a6 29. Rc2 Ra7 30. Kg2 Qh6 31. Rfc1 Rh7 32. Kf1 hxg4 33. hxg4 Qh1+ 34. Ke2 Qh2 35. Qd1 N6d7 36. Nb7 Bb6 37. Qf1 Rh6 38. Kd3 Bxf2 39. Rxf2 Qh4 40. Rcc2 Nb6 41. Nxd6 Rxd6 42. Rh2 Rh6 43. Qh1 Rc7 44. Rxh4 Rxh4 45. Qg1 N8d7 46. a4 bxa4 47. Nxa4 Rxc2 48. Kxc2 Rh6 49. Nc5 Nc8 50. Ne6 1-0

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.12"]
[Round "8"]
[White "Kozak, Leonid"]
[Black "Golichenko, Ilja"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2333"]
[BlackElo "2423"]
[PlyCount "83"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. Be3 Be6 10. Qd2 Nbd7 11. a4 b6 12. Rfd1 Qc7 13. Qe1 h6 14. Rd2 Qb7 15. Qd1 Rac8 16. f3 Rfd8 17. Qf1 Nb8 18. Qf2 Nfd7 19. Nc1 Nc5 20. Nd5 Bxd5 21. Rxd5 f5 22. Bxc5 fxe4 23. fxe4 bxc5 24. b3 Nd7 25. Bc4 Kh8 26. Qe2 Qa8 27. Bxa6 Nf6 28. Bxc8 Nxd5 29. exd5 Qxd5 30. Qg4 Rf8 31. Ne2 Qd2 32. Ba6 d5 33. Bb5 e4 34. Kh1 Bg5 35. c4 d4 36. Qxe4 Be3 37. Ng1 d3 38. Nf3 Qe2 39. Qe7 Rf6 40. Qe8+ Kh7 41. Bc6 Rg6 42. Ng1 1-0

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.11"]
[Round "7"]
[White "Koziak, Vitali"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2478"]
[BlackElo "2333"]
[PlyCount "57"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nc6 7. Nc3 e5 8. d5 Ne7 9. e4 Ne8 10. Ne1 f5 11. Nd3 Nf6 12. f4 Nxe4 13. Nxe4 fxe4 14. Bxe4 exf4 15. Nxf4 Nf5 16. Qd3 Qf6 17. Rb1 Qd4+ 18. Qxd4 Nxd4 19. Bd2 Bd7 20. Rbe1 Rae8 21. h4 Nf5 22. Bxf5 Bxf5 23. b3 Be5 24. Kf2 Kg7 25. Re3 h6 26. Rfe1 Kf7 27. Rf1 Kg7 28. Rfe1 Kf7 29. Rf1 1/2-1/2

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.10"]
[Round "6"]
[White "Kozak, Leonid"]
[Black "Nikolaev, Leonid"]
[Result "1/2-1/2"]
[ECO "E82"]
[WhiteElo "2333"]
[BlackElo "2334"]
[PlyCount "55"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 Nf6 5. f3 0-0 6. Be3 b6 7. Bd3 a6 8. Nge2 c5 9. 0-0 Nc6 10. Bc2 Rb8 11. Ba4 cxd4 12. Nxd4 Nxd4 13. Bxd4 Be6 14. b3 Qc7 15. Rc1 Nh5 16. Nd5 Bxd4+ 17. Qxd4 Qb7 18. Bc6 Qa7 19. b4 Rfc8 20. b5 Bxd5 21. exd5 axb5 22. cxb5 Qa3 23. Rc4 Qxa2 24. Ra4 Qe2 25. Ra7 Ng7 26. Rf2 Qe1+ 27. Rf1 Qe2 28. Rf2 1/2-1/2

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.09"]
[Round "5"]
[White "Maljush, Andrej"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2342"]
[BlackElo "2333"]
[PlyCount "131"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. g3 d6 6. h3 e6 7. Bg2 Nge7 8. 0-0 0-0 9. d3 Rb8 10. a4 a6 11. Ne2 f5 12. exf5 gxf5 13. c3 b5 14. axb5 axb5 15. d4 c4 16. Ng5 Nd5 17. g4 Nce7 18. Qe1 h6 19. Nf3 Nf6 20. g5 Ne4 21. Ng3 Bb7 22. Nh5 Bh8 23. gxh6 Qe8 24. Ng3 Rf6 25. Ng5 d5 26. h7+ Kf8 27. N3xe4 dxe4 28. b3 b4 29. bxc4 Qc6 30. d5 exd5 31. Be3 Rh6 32. Bd4 Bxd4+ 33. cxd4 Qxc4 34. Ne6+ Kf7 35. Rc1 Kxe6 36. Rxc4 dxc4 37. Qxb4 Rxh7 38. Qb6+ Kf7 39. Qa7 Rhh8 40. Rb1 c3 41. d5 Bxd5 42. Rxb8 c2 43. Qc7 Rxb8 44. Qxc2 Rg8 45. Kh2 Ra8 46. Qc5 Ra6 47. Bf1 Rc6 48. Qd4 Rc1 49. Bb5 Be6 50. Qb2 Rc8 51. Be2 Nd5 52. Bh5+ Ke7 53. Qg7+ Kd6 54. Qe5+ Ke7 55. Bd1 Rc6 56. Qg7+ Kd6 57. Qf8+ Kc7 58. h4 e3 59. Qa8 e2 60. Qa7+ Kd6 61. Bxe2 Nxf4 62. Qb8+ Rc7 63. Qb4+ Ke5 64. Qa5+ Kd6 65. Qa3+ Rc5 66. Qg3 1-0

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.08"]
[Round "4"]
[White "Kozak, Leonid"]
[Black "Matorin, Evgeny"]
[Result "1/2-1/2"]
[ECO "A65"]
[WhiteElo "2333"]
[BlackElo "2226"]
[PlyCount "103"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. e4 Be7 7. f4 0-0 8. e5 Bg4 9. Nf3 Nfd7 10. exd6 Bxd6 11. Be2 Nf6 12. 0-0 a6 13. a4 Qc7 14. h3 Bc8 15. Ne1 Re8 16. Bc4 Nbd7 17. Nc2 Nf8 18. Qf3 Bf5 19. Ne3 Be4 20. Nxe4 Rxe4 21. g3 Qd7 22. Bd3 Rxa4 23. Rxa4 Qxa4 24. Nc4 Rd8 25. Be3 Qd7 26. g4 b5 27. Na5 Nxd5 28. Bf5 Qe7 29. Bd2 c4 30. Nc6 Bc5+ 31. Kh1 Qd6 32. Nxd8 Qxd8 33. Rd1 Ne7 34. Be4 Qb6 35. f5 Bd4 36. Bb4 Bf6 37. Rd6 Qc7 38. Qa3 Bxb2 39. Qxb2 a5 40. Ba3 b4 41. Bxb4 axb4 42. Qxb4 c3 43. Bc2 Nc8 44. Rd3 Qe5 45. Qxc3 Qe4+ 46. Kg1 Qe8 47. Qd2 Nb6 48. Rd8 Qe7 49. Bb3 Nbd7 50. Rc8 h5 51. g5 Qe5 52. Qxd7 1/2-1/2

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.07"]
[Round "3"]
[White "Grinev, Valeriy"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "E77"]
[WhiteElo "2327"]
[BlackElo "2333"]
[PlyCount "64"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 c5 6. d5 0-0 7. Nf3 a6 8. a4 e6 9. Be2 exd5 10. exd5 Re8 11. 0-0 Ng4 12. Bd3 f5 13. Re1 Nd7 14. Bd2 Rxe1+ 15. Qxe1 Nf8 16. h3 Nf6 17. Ng5 h6 18. Ne6 Bxe6 19. dxe6 Qe7 20. Qg3 Qxe6 21. Qf3 Qf7 22. g4 Ne6 23. Be3 Nd4 24. Bxd4 cxd4 25. Ne2 Re8 26. Nxd4 Nxg4 27. Nxf5 gxf5 28. hxg4 Bd4+ 29. Kg2 Re3 30. Qf1 fxg4 31. Ra3 Rf3 32. Qc1 Qh5 0-1

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.06"]
[Round "2"]
[White "Kozak, Leonid"]
[Black "Baltag, Iulian"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2333"]
[BlackElo "2365"]
[PlyCount "47"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. g3 Bb4+ 5. Bd2 Qe7 6. Bg2 a5 7. 0-0 Bxd2 8. Qxd2 d6 9. Nc3 e5 10. Nd5 Nxd5 11. cxd5 Nxd4 12. Nxd4 exd4 13. Qxd4 0-0 14. Rac1 f5 15. e3 b6 16. Rc3 Ba6 17. Rfc1 Ra7 18. Qd2 Rf7 19. Qc2 g6 20. a3 Qe8 21. Qd2 Qf8 22. Bh3 Re7 23. Bg2 Bb5 24. h3 1/2-1/2

[Event "Nabokov Memorial-B 8th"]
[Site "Kiev"]
[Date "2010.06.05"]
[Round "1"]
[White "Kozak, Leonid"]
[Black "Golubka, Petr"]
[Result "1/2-1/2"]
[ECO "D34"]
[WhiteElo "2333"]
[BlackElo "2348"]
[PlyCount "74"]
[EventDate "2010.06.05"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "4"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 h6 9. dxc5 Bxc5 10. Na4 Be7 11. Be3 0-0 12. Rc1 Re8 13. Nd4 Bd7 14. Nc5 Bxc5 15. Nxc6 bxc6 16. Bxc5 Ne4 17. Bd4 Ng5 18. Re1 Qa5 19. a3 Rad8 20. Rc5 Qa6 21. Qd2 Qb7 22. Ra5 a6 23. b4 f6 24. Qd3 Bc8 25. Rc1 Ne4 26. e3 Kf8 27. Qc2 Bd7 28. Bf1 Ra8 29. Bd3 Nd6 30. Qe2 Bf5 31. Bxa6 Qd7 32. Qb2 Be4 33. Be2 Nc4 34. Bxc4 dxc4 35. Rxc4 Rxa5 36. bxa5 Qf5 37. Bb6 Qf3 1/2-1/2

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.28"]
[Round "9"]
[White "Kozak, Leonid"]
[Black "Lots, Stepan"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2340"]
[BlackElo "2262"]
[PlyCount "88"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 e5 6. Nge2 Nge7 7. d3 d6 8. h3 Be6 9. 0-0 0-0 10. Kh2 d5 11. b3 Qd7 12. e4 dxe4 13. dxe4 Nd4 14. Nd5 f5 15. Ba3 Rac8 16. exf5 gxf5 17. h4 Nxd5 18. cxd5 Bxd5 19. Nxd4 exd4 20. Qd3 Bxg2 21. Kxg2 f4 22. Rae1 Qd5+ 23. Kh2 Rce8 24. Bc1 fxg3+ 25. Qxg3 Rxe1 26. Rxe1 Qf3 27. Qxf3 Rxf3 28. Kg2 Rc3 29. Bg5 h6 30. Bf4 Kf7 31. Bd6 Bf6 32. h5 b5 33. Be5 Bxe5 34. Rxe5 Kf6 35. Rd5 Ke6 36. Rd8 d3 37. Kf3 c4 38. bxc4 bxc4 39. Ke4 Rc2 40. f4 d2 41. f5+ Ke7 42. Rd5 c3 43. Ke5 Rc1 44. f6+ Ke8 0-1

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.27"]
[Round "8"]
[White "Glazkov, Konstantin"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2081"]
[BlackElo "2340"]
[PlyCount "44"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. Bg5 h6 6. Bh4 c5 7. d5 g5 8. Bg3 Nh5 9. e3 Nd7 10. Nd2 Nxg3 11. hxg3 Ne5 12. f4 Ng4 13. Qf3 Qa5 14. Rc1 Bd7 15. Bd3 0-0-0 16. Nb3 Bxc3+ 17. bxc3 Qxa2 18. Bc2 Nf6 19. f5 Ba4 20. Na1 Bxc2 21. Nxc2 Qxc4 22. Rd1 Ne4 0-1

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.26"]
[Round "7"]
[White "Kozak, Leonid"]
[Black "Sivuk, Vitaly"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2340"]
[BlackElo "2431"]
[PlyCount "106"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 c6 5. Bf4 Nd7 6. e3 Ngf6 7. a3 Be7 8. h3 0-0 9. Be2 c5 10. cxd5 Nxd5 11. Nxd5 exd5 12. dxc5 Nxc5 13. 0-0 Bg6 14. b4 Ne4 15. Be5 a5 16. Qb3 f6 17. Bh2 axb4 18. axb4 Bf7 19. Rxa8 Qxa8 20. Qb2 Qa7 21. Rc1 Ra8 22. Nd4 Bf8 23. g4 Qa4 24. Rc7 b6 25. Nc2 Nd6 26. Bd3 Qe8 27. Na3 Qd8 28. Nb5 Bg6 29. Qd4 Ne4 30. Na7 Ng5 31. Kg2 Ne6 32. Qxb6 Nxc7 33. Bxc7 Qe8 34. Bxg6 hxg6 35. b5 Qe4+ 36. Kg3 d4 37. exd4 Qd5 38. Kh2 Qf3 39. Bg3 Qb3 40. Qb7 Re8 41. b6 Re6 42. Nc8 Re1 43. Qg2 Rb1 44. Bc7 Rb2 45. Bg3 Qb5 46. Qa8 Kh7 47. Qb7 Rb1 48. Bc7 Qb2 49. Qg2 Qb5 50. Na7 Qd7 51. Qg3 Qd5 52. Qg2 Bd6+ 53. f4 Qxd4 0-1

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.25"]
[Round "6"]
[White "Danilenko, Dmitriy"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2297"]
[BlackElo "2340"]
[PlyCount "57"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 g6 5. Nf3 Bg7 6. Nxd4 cxd4 7. Qf3 Nh6 8. d3 Qa5 9. Bxh6 Bxh6 10. Qxf7+ Kd8 11. Qd5 Qxd5 12. Nxd5 e6 13. Nf6 Bg7 14. e5 Bxf6 15. exf6 Rf8 16. Kd2 b6 17. a4 Bb7 18. f3 a6 19. c3 dxc3+ 20. bxc3 Rxf6 21. d4 g5 22. Bd3 h6 23. Rab1 Kc7 24. h3 Bc6 25. Rb2 Bxa4 26. Ra1 b5 27. c4 bxc4 28. Bxc4 Bc6 29. Rxa6 1/2-1/2

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.25"]
[Round "5"]
[White "Kozak, Leonid"]
[Black "Khazankin, Moisey"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2340"]
[BlackElo "2139"]
[PlyCount "63"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 Nbd7 7. Nf3 Nf8 8. h3 h5 9. Be3 h4 10. 0-0 Ng6 11. a3 Nh5 12. Ne2 Bf6 13. b4 b6 14. Rb1 Nhf4 15. Kh2 Kf8 16. Bc2 Bd7 17. Neg1 cxb4 18. Rxb4 Qc7 19. Qb1 Ke7 20. Qb3 Rab8 21. a4 Rbc8 22. Rc1 Qd8 23. a5 bxa5 24. Rb7 Rc7 25. Rxa7 Rxa7 26. Bxa7 Qc8 27. c5 Qa6 28. Qb6 Qxb6 29. cxb6 Bc8 30. Ba4 Kd8 31. b7 Bxb7 32. Bb6+ 1-0

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.24"]
[Round "4"]
[White "Shilin, Denis"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2374"]
[BlackElo "2340"]
[PlyCount "104"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. a4 e6 5. Nge2 a6 6. Bc4 Nf6 7. d3 d5 8. exd5 exd5 9. Ba2 Nxe2 10. Qxe2+ Be7 11. Bg5 0-0 12. 0-0 Be6 13. f4 Qd7 14. Qf2 Ng4 15. Qg3 Bf6 16. Bxf6 Nxf6 17. f5 Bxf5 18. Qg5 Bg6 19. Nxd5 Nxd5 20. Qxd5 Qc7 21. h4 h5 22. Qg5 Kh7 23. Rae1 Rae8 24. Rxe8 Rxe8 25. Qf4 Qxf4 26. Rxf4 f6 27. b4 Re5 28. bxc5 Rxc5 29. Bb3 a5 30. Kf2 Be8 31. Ke3 Bc6 32. g3 Re5+ 33. Kd2 Kg6 34. c3 b6 35. Rd4 Bf3 36. c4 Re2+ 37. Kc3 Re6 38. Rd7 Kh6 39. c5 Rc6 40. d4 bxc5 41. d5 Rc8 42. Bc4 Re8 43. Rc7 Re3+ 44. Kd2 Ra3 45. d6 Rxa4 46. Rc8 Bg4 47. Rc7 Ra1 48. Bd3 Rg1 49. Ra7 Rxg3 50. Rxa5 g6 51. Ra8 Rh3 52. Kc3 Bf5 0-1

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.23"]
[Round "3"]
[White "Kozak, Leonid"]
[Black "Vartapetyan, Armen"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2340"]
[BlackElo "2117"]
[PlyCount "41"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 Bg4 4. Qb3 Qc8 5. g3 Nc6 6. d5 Nd8 7. Bg2 g6 8. 0-0 Bg7 9. Nc3 0-0 10. e4 Bh3 11. Ne1 Bxg2 12. Kxg2 e6 13. f3 b6 14. Bg5 c6 15. Qd1 Re8 16. Qd2 exd5 17. exd5 c5 18. Nd3 Nb7 19. Nf2 h5 20. Rae1 Qd7 21. b3 1/2-1/2

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.23"]
[Round "2"]
[White "Varchenko, Grigory"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2165"]
[BlackElo "2340"]
[PlyCount "103"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. 0-0 Bd7 5. Re1 a6 6. Bxc6 Bxc6 7. d4 cxd4 8. Nxd4 Nf6 9. Nxc6 bxc6 10. c4 g6 11. Qa4 Qc7 12. c5 d5 13. Nc3 dxe4 14. Bf4 Qb7 15. Nxe4 Nxe4 16. Qxe4 Bg7 17. Be5 Bxe5 18. Qxe5 0-0 19. Rad1 Rad8 20. h4 h5 21. b3 e6 22. Rd6 Rxd6 23. Qxd6 a5 24. Re4 Ra8 25. g4 hxg4 26. Rxg4 Kh7 27. h5 Rg8 28. hxg6+ Rxg6 29. Qh2+ Kg7 30. Qe5+ Kh7 31. Qh5+ Rh6 32. Qe5 Rg6 33. Rxg6 Kxg6 34. Qg3+ Kh5 35. Qf3+ Kg6 36. Qd3+ f5 37. Qd8 Kf7 38. Qd6 a4 39. Qd1 axb3 40. axb3 Qb5 41. Qd7+ Kf6 42. Qd4+ Kg6 43. b4 Qe2 44. Kg2 Qb5 45. Kg3 Qb8+ 46. f4 Qe8 47. Qd6 Kf6 48. Kf2 Qa8 49. Qd2 Qa4 50. Qd8+ Kf7 51. Qd7+ Kf6 52. Qd8+ 1/2-1/2

[Event "Stopkin Memorial 1st"]
[Site "Nikolaev"]
[Date "2009.11.22"]
[Round "1"]
[White "Kozak, Leonid"]
[Black "Trofimova, Anastasia"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2340"]
[BlackElo "1957"]
[PlyCount "109"]
[EventDate "2009.11.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nc6 5. d5 Ne5 6. f4 Ng4 7. h3 N4h6 8. Nf3 e5 9. fxe5 Bxe5 10. Bg5 Bg3+ 11. Kd2 f6 12. Be3 Nf7 13. Rc1 Ne7 14. Kc2 0-0 15. Ne2 Be5 16. g4 Qe8 17. Kb1 b6 18. Rg1 a5 19. Ned4 Bd7 20. h4 a4 21. Bh3 a3 22. b3 Nc8 23. Qd3 Qe7 24. Rce1 Re8 25. Bd2 Na7 26. Bc1 c5 27. dxc6 Nxc6 28. Nb5 Nb4 29. Qd2 Na6 30. Bxa3 Bxb5 31. cxb5 Nc7 32. Bb4 Nxb5 33. Nxe5 Qxe5 34. Qb2 Rac8 35. Re3 Rc7 36. Rf1 Rec8 37. Qxe5 fxe5 38. g5 Re8 39. Rf6 Nd4 40. Rc3 Rxc3 41. Bxc3 Ne2 42. Be1 Nf4 43. Bf1 Re6 44. Rxe6 Nxe6 45. Bc4 Nc5 46. Bd5 Kf8 47. Kc2 Nd8 48. Bf2 Kg7 49. Bxc5 dxc5 50. Kc3 h6 51. Kc4 hxg5 52. hxg5 Kf8 53. Kb5 Ke7 54. Kxb6 Kd7 55. a4 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.13"]
[Round "9"]
[White "Kozak, Leonid"]
[Black "Sitnikov, Anton"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2340"]
[BlackElo "2509"]
[PlyCount "66"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Be7 5. 0-0 0-0 6. b3 a5 7. cxd5 exd5 8. Bb2 a4 9. bxa4 Nbd7 10. d4 c6 11. Ne1 Qa5 12. Nc3 Nb6 13. Nc2 Bf5 14. Ne3 Bg6 15. Qd2 Nxa4 16. Ned1 Ra7 17. h3 Bb4 18. a3 Bd6 19. Kh1 Rfa8 20. Qc1 Nxb2 21. Qxb2 Bxa3 22. Qb3 Qb4 23. Qxb4 Bxb4 24. Rxa7 Rxa7 25. e3 Ra3 26. Ne2 Bd3 27. Bf3 Ne4 28. Nb2 Bxe2 29. Bxe2 Ra2 30. Nd3 Rxe2 31. Nxb4 Nxf2+ 32. Kg2 Ne4+ 33. Kf3 Rh2 0-1

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.12"]
[Round "7"]
[White "Fingerov, Dmitry"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2376"]
[BlackElo "2340"]
[PlyCount "35"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 0-0 5. g3 d6 6. d4 Nbd7 7. Bg2 e5 8. dxe5 Ng4 9. 0-0 dxe5 10. Qc1 f5 11. Ng5 Bh6 12. f4 Bxg5 13. fxg5 e4 14. Qf4 h6 15. gxh6 g5 16. Qd2 Nxh6 17. h4 c6 18. Qc3 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.12"]
[Round "8"]
[White "Kozak, Leonid"]
[Black "Kamenets, Anatolij"]
[Result "1-0"]
[ECO "A87"]
[WhiteElo "2340"]
[BlackElo "2226"]
[PlyCount "87"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 Qe8 8. d5 c6 9. Rb1 Bd7 10. b4 Na6 11. dxc6 bxc6 12. b5 Nc5 13. Nd4 Nfe4 14. Nxe4 fxe4 15. Be3 Rc8 16. Nxc6 Bxc6 17. Bxc5 Ba8 18. Bxa7 Rxc4 19. a4 Qd8 20. Bh3 d5 21. b6 Bb7 22. a5 Bd4 23. e3 Bc5 24. a6 Bxa6 25. Be6+ Kg7 26. Qxd5 Qxd5 27. Bxd5 Rc2 28. Bxe4 Rd2 29. Rfc1 Bd6 30. f4 Ba3 31. Rc3 Bd6 32. b7 Bb8 33. Bxb8 Rxb8 34. Rcb3 Ra2 35. Rc1 Ra4 36. Bd5 Ra5 37. Bf3 Ra2 38. Rb6 Ra3 39. Rxa6 Rxa6 40. Rc8 Ra1+ 41. Kg2 Ra2+ 42. Kh3 Rxb7 43. Bxb7 Rb2 44. Bd5 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.11"]
[Round "6"]
[White "Kozak, Leonid"]
[Black "Golovach, Valery"]
[Result "1-0"]
[ECO "D16"]
[WhiteElo "2340"]
[BlackElo "2156"]
[PlyCount "53"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4 6. Ne5 Bh5 7. f3 Nfd7 8. Nxc4 e5 9. e4 Bb4 10. dxe5 0-0 11. Bf4 Qe7 12. Qc2 Nb6 13. Nd6 N8d7 14. a5 Nc8 15. Nf5 Qe8 16. Ra4 c5 17. Bb5 a6 18. Bxd7 Qxd7 19. 0-0 Bxc3 20. bxc3 Rd8 21. Raa1 Ne7 22. Rfd1 Qe6 23. Rxd8+ Rxd8 24. Bg5 f6 25. Nxg7 Qxe5 26. f4 Qd6 27. e5 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.11"]
[Round "5"]
[White "Vdovichenko, Vladislav"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "E84"]
[WhiteElo "2186"]
[BlackElo "2340"]
[PlyCount "53"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. Nc1 e5 10. d5 Nd4 11. N1e2 c5 12. dxc6 bxc6 13. Nxd4 exd4 14. Bxd4 d5 15. cxd5 cxd5 16. e5 Nd7 17. f4 f6 18. e6 Re8 19. Be2 Nf8 20. f5 gxf5 21. 0-0-0 Nxe6 22. Bf3 Bb7 23. Bf2 Rc8 24. Bxd5 Bxd5 25. Qxd5 Qxd5 26. Rxd5 Nf4 27. Rxf5 1/2-1/2

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.10"]
[Round "4"]
[White "Kozak, Leonid"]
[Black "Bogdanov, Egor"]
[Result "1-0"]
[ECO "D33"]
[WhiteElo "2340"]
[BlackElo "2185"]
[PlyCount "91"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Nc3 Nc6 6. g3 Nf6 7. Bg2 Qb6 8. Na4 Qb5 9. dxc5 Bxc5 10. Nxc5 Qxc5 11. 0-0 0-0 12. Be3 Qb5 13. b3 Re8 14. Nd4 Nxd4 15. Bxd4 Qxe2 16. Bxf6 Qxd1 17. Rfxd1 gxf6 18. Bxd5 Re7 19. Re1 Be6 20. f4 Rae8 21. Bf3 Bf5 22. Rxe7 Rxe7 23. Rc1 Be4 24. Re1 f5 25. g4 Kf8 26. Bxe4 fxe4 27. Kf2 Kg7 28. Ke3 f5 29. gxf5 Kf6 30. Rd1 Kxf5 31. Rd5+ Kf6 32. Rd6+ Kf5 33. h3 b6 34. a4 Re8 35. Rd7 h6 36. Rf7+ Kg6 37. Rxa7 Rc8 38. Kxe4 Rc3 39. b4 Rc4+ 40. Ke5 Rxb4 41. f5+ Kg5 42. Rg7+ Kh4 43. f6 Rb1 44. f7 Rf1 45. Ke6 Rf4 46. Rg8 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.09"]
[Round "2"]
[White "Kozak, Leonid"]
[Black "Khazankin, Moisey"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2340"]
[BlackElo "2157"]
[PlyCount "43"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. Bd3 Nbd7 7. h3 h5 8. Nf3 a6 9. Be3 Rb8 10. a3 Qa5 11. 0-0 b5 12. cxb5 axb5 13. b4 Qd8 14. bxc5 Nxc5 15. Bxc5 dxc5 16. Nxe5 c4 17. Nc6 Qb6 18. Bxc4 bxc4 19. Rb1 Qa6 20. Rxb8 Bd6 21. Rxc8+ Qxc8 22. e5 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.09"]
[Round "3"]
[White "Pavlov, Sergey1111"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "2507"]
[BlackElo "2340"]
[PlyCount "63"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 Bg7 3. Nf3 d6 4. d4 Nf6 5. g3 0-0 6. Bg2 Nbd7 7. 0-0 e5 8. e4 c6 9. h3 Qb6 10. c5 dxc5 11. dxe5 Ne8 12. e6 fxe6 13. Ng5 Ne5 14. f4 Nf7 15. Nxf7 Bd4+ 16. Kh1 Rxf7 17. e5 Qc7 18. Ne4 b6 19. Ng5 Re7 20. Qc2 Ba6 21. Rd1 Rd8 22. Be4 Ng7 23. g4 Bc8 24. a4 b5 25. Bd2 b4 26. Bxg6 hxg6 27. Qxg6 Rf7 28. Be1 Kf8 29. Bh4 Rxf4 30. Rf1 Qxe5 31. Rxf4+ Qxf4 32. Bg3 1-0

[Event "Yuzhny op"]
[Site "Yuzhny"]
[Date "2009.09.08"]
[Round "1"]
[White "Zabgaeva, Marina"]
[Black "Kozak, Leonid"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "1872"]
[BlackElo "2340"]
[PlyCount "74"]
[EventDate "2009.09.08"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 Na6 7. Nf3 Qe8 8. a3 h6 9. Be3 Ng4 10. Bd2 e5 11. d5 Bd7 12. h3 Nf6 13. b4 Nh5 14. Qc1 Nf4 15. Bf1 f5 16. Ng1 fxe4 17. Nxe4 Bf5 18. f3 Qf7 19. Be3 Bxe4 20. fxe4 Nxd5 21. Nf3 Nxe3 22. Qxe3 Qf4 23. Ke2 Nb8 24. Rd1 a5 25. c5 axb4 26. axb4 dxc5 27. bxc5 Qf7 28. Qc3 Qa2+ 29. Rd2 Qa7 30. Kf2 Kh7 31. Kg3 Qa5 32. Qb2 Ra7 33. Qc1 Nc6 34. Rd7 Qa4 35. Qb1 Nd4 36. Rxc7 Qa3 37. Qd1 Qe3 0-1

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.07"]
[Round "14"]
[White "Kozak, Leonid"]
[Black "Kononenko, Dmitry"]
[Result "0-1"]
[ECO "A67"]
[WhiteElo "2319"]
[BlackElo "2490"]
[PlyCount "44"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ Nbd7 9. e5 dxe5 10. fxe5 Nh5 11. e6 Qh4+ 12. Kd2 fxe6 13. dxe6 0-0 14. exd7 Bxd7 15. Bxd7 Rad8 16. Kc2 Rf2+ 17. Bd2 Bxc3 18. bxc3 Qe4+ 19. Kc1 Nf4 20. Nf3 Nd3+ 21. Kb1 Rxd7 22. Qc2 Rd6 0-1

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.06"]
[Round "13"]
[White "Eryomenko, Volodymyr"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2373"]
[BlackElo "2319"]
[PlyCount "85"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 Qxb6 6. Nc3 d6 7. Nf3 g6 8. e4 Bg7 9. a4 Bg4 10. a5 Qb7 11. Qa4+ Bd7 12. Qc2 0-0 13. Bd3 e6 14. 0-0 Ra7 15. Bf4 e5 16. Bg5 Bb5 17. Nd2 Nh5 18. Be3 Nf4 19. Bxb5 axb5 20. g3 Nh5 21. b4 Na6 22. bxc5 dxc5 23. Rfb1 Nb4 24. Qb3 Rc8 25. Bxc5 Rxc5 26. Qxb4 Bf8 27. Qb2 b4 28. Nd1 Qc7 29. Nb3 Rc4 30. Rc1 Ra8 31. Qe2 Rxc1 32. Rxc1 Qd7 33. Rc6 f5 34. f3 fxe4 35. fxe4 Bd6 36. Ne3 Rf8 37. Kg2 Nf4+ 38. gxf4 exf4 39. Qg4 Qa7 40. Qe6+ Kg7 41. Nf5+ gxf5 42. Rxd6 f3+ 43. Kf1 1-0

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.05"]
[Round "12"]
[White "Kozak, Leonid"]
[Black "Varitski, Igor"]
[Result "1/2-1/2"]
[ECO "A83"]
[WhiteElo "2319"]
[BlackElo "2334"]
[PlyCount "54"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5 Nc6 5. d5 Ne5 6. Qd4 Nf7 7. Bxf6 exf6 8. Nxe4 Be7 9. 0-0-0 0-0 10. g4 d6 11. Ng3 c5 12. Qa4 b5 13. Bxb5 Rb8 14. Nf5 Bxf5 15. gxf5 Qb6 16. c4 Ne5 17. b3 Qc7 18. Ne2 a6 19. Bc6 Qc8 20. Ng3 Rb4 21. Qa3 Nxc6 22. dxc6 Qxc6 23. Rhe1 Rf7 24. Rd5 Bf8 25. Kc2 Re7 26. Rxe7 Bxe7 27. Qc1 Bf8 1/2-1/2

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.05"]
[Round "11"]
[White "Maximov, Dmitry"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2402"]
[BlackElo "2319"]
[PlyCount "107"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 e6 5. Qe2 Be7 6. Bb3 d5 7. e5 Nfd7 8. Bc2 b6 9. 0-0 Ba6 10. d3 Nc6 11. Re1 Qc7 12. Bf4 h6 13. h4 g5 14. Bg3 gxh4 15. Bh2 0-0-0 16. a4 c4 17. dxc4 Bxc4 18. Qd1 Rhg8 19. b3 Ba6 20. b4 Bb7 21. Qe2 Rg7 22. Na3 Rdg8 23. Nb5 Rxg2+ 24. Kh1 Qd8 25. Nbd4 Nxd4 26. Nxd4 Qc7 27. Nb5 Qc4 28. Qxc4+ dxc4 29. Be4 a6 30. Bxb7+ Kxb7 31. Rad1 Kc8 32. Na7+ Kc7 33. Re4 R2g4 34. f4 Nb8 35. Rxc4+ Kb7 36. Nc6 Rc8 37. b5 axb5 38. axb5 Rc7 39. Ra1 Nxc6 40. bxc6+ Rxc6 41. Rca4 Rc7 42. Ra7+ Kc6 43. Rxc7+ Kxc7 44. Ra7+ Kd8 45. Rb7 Bc5 46. Rxf7 Rg6 47. f5 exf5 48. Rxf5 Ke7 49. Rf4 Be3 50. Rxh4 b5 51. Rb4 Rc6 52. Rxb5 Rxc3 53. Kg2 Ke6 54. Bg3 1/2-1/2

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.04"]
[Round "10"]
[White "Shtyrenkov, Veniamen"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "B87"]
[WhiteElo "2424"]
[BlackElo "2319"]
[PlyCount "108"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. 0-0 Bb7 9. Re1 Nbd7 10. Bg5 h6 11. Bxf6 Nxf6 12. Qf3 Qb6 13. Rad1 Be7 14. Qe3 0-0 15. Nd5 Qd8 16. Nxe7+ Qxe7 17. e5 dxe5 18. Qxe5 Nh7 19. Nxe6 fxe6 20. Bxe6+ Rf7 21. Bb3 Qxe5 22. Rxe5 Bc6 23. Re7 Ng5 24. Rd6 Rc8 25. h4 Kf8 26. Re3 Ne4 27. Rxc6 Rxc6 28. Bxf7 Kxf7 29. Rxe4 Rxc2 30. Rb4 h5 31. a3 Kg6 32. g3 Kh6 33. Kg2 g6 34. Kf3 Kg7 35. Ke3 Kh6 36. f3 Rg2 37. Kf4 Re2 38. b3 Rb2 39. Ke3 Rg2 40. Kf4 Rb2 41. Ke3 Rg2 42. a4 Rxg3 43. axb5 axb5 44. Rxb5 Rg1 45. Kf4 Kg7 46. b4 Rh1 47. Rb7+ Kf6 48. Rb6+ Kg7 49. b5 Kf7 50. Kg5 Rg1+ 51. Kh6 Rh1 52. Rb8 Ke7 53. b6 Kd7 54. Rg8 Rxh4 1-0

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.03"]
[Round "9"]
[White "Kozak, Leonid"]
[Black "Obukhov, Alexander"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2319"]
[BlackElo "2481"]
[PlyCount "77"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 d5 3. Bf4 Nf6 4. e3 e6 5. Nf3 a6 6. Ne2 c5 7. c3 Nc6 8. Ne5 Be7 9. Ng1 Nxe5 10. Bxe5 0-0 11. Be2 c4 12. Nf3 b5 13. a3 a5 14. 0-0 Nd7 15. h3 Nxe5 16. Nxe5 Bd6 17. f4 g5 18. Qe1 Kh8 19. g3 Bxe5 20. dxe5 Qe7 21. Kf2 Rb8 22. Rb1 Bd7 23. Qd2 Rg8 24. Qd4 Be8 25. b4 Ra8 26. Rb2 Qa7 27. Qxa7 Rxa7 28. bxa5 Rxa5 29. Ra1 gxf4 30. gxf4 Bc6 31. Bf3 Rga8 32. Rba2 R5a7 33. Bd1 b4 34. cxb4 Ba4 35. Bf3 Bb3 36. Rb2 Rxa3 37. Rc1 Ba4 38. Bd1 Bxd1 39. Rxd1 0-1

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.02"]
[Round "7"]
[White "Kononenko, Dmitry"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "2490"]
[BlackElo "2319"]
[PlyCount "85"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. a4 c5 16. d5 c4 17. Bg5 Bg7 18. Qd2 Qe7 19. Ra3 Qf8 20. Rea1 Rab8 21. axb5 axb5 22. b3 Ra8 23. bxc4 bxc4 24. Be3 Rxa3 25. Rxa3 Ra8 26. Qc1 Ra6 27. Rxa6 Bxa6 28. Qa3 Nb8 29. Ba4 Qd8 30. Qb4 Bf8 31. Nd2 h5 32. f3 Nh7 33. Bb5 Bc8 34. Nxc4 f5 35. exf5 gxf5 36. f4 Qh4 37. Nf1 Nf6 38. Nxd6 exf4 39. Qc4 Bxd6 40. Qxc8+ Kg7 41. Bd4 f3 42. Qxf5 fxg2 43. Kxg2 1-0

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.02"]
[Round "8"]
[White "Varavin, Viktor"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2438"]
[BlackElo "2319"]
[PlyCount "37"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Bf4 0-0 8. Qd2 Nd7 9. 0-0-0 Nc5 10. Nd4 Ne6 11. Be3 Nxd4 12. cxd4 d5 13. h3 Bf5 14. Bd3 Bxd3 15. Qxd3 Qd7 16. Bf4 Bd6 17. Bxd6 Qxd6 18. Qf3 Rfe8 19. Rhe1 1/2-1/2

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.10.01"]
[Round "6"]
[White "Kozak, Leonid"]
[Black "Eryomenko, Volodymyr"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2319"]
[BlackElo "2373"]
[PlyCount "100"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 f5 2. e4 fxe4 3. Ng5 d5 4. d3 Qd6 5. dxe4 h6 6. Qh5+ g6 7. Qh4 Qe5 8. Nf3 Qxe4+ 9. Qxe4 dxe4 10. Nfd2 Nf6 11. Nc3 Bf5 12. Bb5+ c6 13. Ba4 Nbd7 14. Bb3 e6 15. 0-0 Bb4 16. Nd1 0-0-0 17. Ne3 Nd5 18. c3 Bc5 19. Re1 Nxe3 20. fxe3 Ne5 21. Nf1 Nd3 22. Re2 Bg4 23. Rd2 Kc7 24. h3 Nxc1 25. Rxd8 Rxd8 26. Rxc1 Be2 27. Re1 Bd3 28. Bxe6 Kd6 29. Bf7 g5 30. b4 Bb6 31. Bb3 Ke5 32. a4 Bxf1 33. Kxf1 Rd3 34. Rc1 Bxe3 35. Rc2 Bd2 36. b5 cxb5 37. axb5 Rxc3 38. Rxc3 Bxc3 39. Ke2 a6 40. bxa6 bxa6 41. Bc4 a5 42. Bb3 Bd4 43. g4 Kf4 44. Bc2 e3 45. Ba4 Kg3 46. Bb5 Kxh3 47. Kf3 Kh2 48. Bc6 Kg1 49. Bb5 Bb6 50. Kg3 a4 0-1

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.09.30"]
[Round "4"]
[White "Kozak, Leonid"]
[Black "Maximov, Dmitry"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2319"]
[BlackElo "2402"]
[PlyCount "42"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 Nc6 3. Nf3 e6 4. e3 Bb4+ 5. Nbd2 0-0 6. Bd3 Re8 7. 0-0 Bf8 8. b3 d6 9. Ne4 e5 10. Nxf6+ Qxf6 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Bb2 Qh4 14. f4 Bg4 15. Qe1 Qxe1 16. Raxe1 Bb4 17. Rb1 Rad8 18. h3 Bh5 19. Bxh7+ Kxh7 20. g4 exf4 21. exf4 Re2 0-1

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.09.30"]
[Round "5"]
[White "Varitski, Igor"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "2334"]
[BlackElo "2319"]
[PlyCount "40"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 d5 5. exd5 Qxd5 6. cxd4 Bg4 7. Be2 Bb4+ 8. Nc3 Bxf3 9. Bxf3 Qc4 10. Bxc6+ Qxc6 11. 0-0 Ne7 12. d5 Qd7 13. Qb3 a5 14. a3 Bxc3 15. bxc3 0-0 16. c4 a4 17. Qc3 c6 18. Bb2 f6 19. Rad1 cxd5 20. cxd5 Ra6 1/2-1/2

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.09.29"]
[Round "3"]
[White "Kozak, Leonid"]
[Black "Shtyrenkov, Veniamen"]
[Result "1/2-1/2"]
[ECO "D08"]
[WhiteElo "2319"]
[BlackElo "2424"]
[PlyCount "96"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. a3 Nge7 6. b4 Ng6 7. Bb2 Ngxe5 8. Nxe5 Nxe5 9. e3 Be6 10. c5 Nc6 11. exd4 Qg5 12. Qd2 Qxd2+ 13. Nxd2 0-0-0 14. Nf3 Bd5 15. Ne5 Be7 16. Nxc6 Bxc6 17. Bc4 Bf6 18. 0-0 Bd5 19. Rfc1 Bxc4 20. Rxc4 Rhe8 21. Kf1 Kd7 22. c6+ bxc6 23. Rac1 Re7 24. Rxc6 Kc8 25. R6c4 a6 26. Rd1 Kb7 27. Bc1 c6 28. Be3 Rd5 29. Ke2 Re6 30. Kd3 Bd8 31. Rc5 Bb6 32. Rxd5 cxd5 33. Rc1 Rc6 34. Rxc6 Kxc6 35. a4 Bc7 36. h3 Bd6 37. Bd2 Be7 38. Ke2 Bf6 39. Bc3 Bg5 40. Kf3 g6 41. Kg4 Bh6 42. h4 f5+ 43. Kh3 Bc1 44. Kg3 h5 45. f4 Be3 46. Kf3 Bg1 47. g3 Kb7 48. Ke2 Kc6 1/2-1/2

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.09.28"]
[Round "2"]
[White "Obukhov, Alexander"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2481"]
[BlackElo "2319"]
[PlyCount "58"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. h3 Na6 7. Bg5 Qe8 8. Be2 c6 9. a3 e5 10. d5 c5 11. Nd2 Bd7 12. g4 Nc7 13. b4 b6 14. Bd3 Kh8 15. Rb1 Ng8 16. Be3 f6 17. h4 Ne7 18. h5 Kg8 19. hxg6 hxg6 20. g5 f5 21. f3 Nc8 22. Qe2 f4 23. Bg1 Kf7 24. bxc5 dxc5 25. Rh7 Rh8 26. Qh2 Rxh7 27. Qxh7 Nd6 28. Qh2 Qe7 29. Qg2 Rh8 1/2-1/2

[Event "Dnipropetrovsk"]
[Site "Dnipropetrovsk"]
[Date "2006.09.27"]
[Round "1"]
[White "Kozak, Leonid"]
[Black "Varavin, Viktor"]
[Result "1-0"]
[ECO "E69"]
[WhiteElo "2319"]
[BlackElo "2438"]
[PlyCount "69"]
[EventDate "2006.09.27"]
[EventType "tourn"]
[EventRounds "14"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "EXT 2023"]
[Source "ChessBase"]
[SourceDate "2022.10.05"]
[SourceVersion "1"]
[SourceVersionDate "2022.10.05"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1 a5 12. Rb1 Nfd7 13. Be3 Ne5 14. b3 c6 15. Re2 g5 16. Rd2 Qf6 17. g4 Ng6 18. Rc1 Nf4 19. Nf5 Bxf5 20. exf5 Rad8 21. Ne2 Ne4 22. Bxe4 Rxe4 23. Ng3 Nxh3+ 24. Kg2 Nf4+ 25. Bxf4 Rxf4 26. Nh5 Qe5 27. Nxf4 Qxf4 28. Rcc2 h5 29. gxh5 Qxf5 30. Qf3 Qh7 31. Re2 f5 32. Re7 g4 33. Qe3 Qxh5 34. Qe6+ Kh8 35. Rxg7 1-0

[Event "Ilichevsk Sunny Pawn-A"]
[Site "Ilichevsk"]
[Date "2006.07.31"]
[Round "11"]
[White "Stopkin, Vladimir"]
[Black "Kozak, Leonid"]
[Result "1/2-1/2"]
[ECO "E65"]
[WhiteElo "2296"]
[BlackElo "2319"]
[PlyCount "30"]
[EventDate "2006.07.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 d6 9. Nxc6 bxc6 10. Bxc6 Rb8 11. Bg2 Qa5 12. Qa4 Qxa4 13. Nxa4 Be6 14. c5 Rb4 15. Nc3 dxc5 1/2-1/2

[Event "Ilichevsk Sunny Pawn-A"]
[Site "Ilichevsk"]
[Date "2006.07.30"]
[Round "10"]
[White "Kozak, Leonid"]
[Black "Itkis, Boris"]
[Result "1/2-1/2"]
[ECO "D16"]
[WhiteElo "2319"]
[BlackElo "2453"]
[PlyCount "30"]
[EventDate "2006.07.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 e6 6. e3 c5 7. Bxc4 Nc6 8. 0-0 cxd4 9. exd4 Be7 10. Bg5 0-0 11. Re1 Nb4 12. Ne5 Bd7 13. Qd2 Bc6 14. Nxc6 bxc6 15. Rad1 a5 1/2-1/2

[Event "Ilichevsk Sunny Pawn-A"]
[Site "Ilichevsk"]
[Date "2006.07.28"]
[Round "8"]
[White "Zavgorodniy, Sergiy"]
[Black "Kozak, Leonid"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2430"]
[BlackElo "2319"]
[PlyCount "111"]
[EventDate "2006.07.20"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "UKR"]
[EventCategory "7"]
[SourceTitle "CBM 113 Extra"]
[Source "ChessBase"]
[SourceDate "2006.09.14"]
[SourceVersion "1"]
[SourceVersionDate "2006.09.14"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. h3 c5 6. d3 Bd6 7. Nbd2 Ne7 8. Nc4 f6 9. Be3 Be6 10. Qe2 0-0 11. Nh4 g5 12. Nf3 Ng6 13. h4 Nf4 14. Bxf4 gxf4 15. h5 Bg4 16. Rh4 Qc8 17. 0-0-0 Kh8 18. Rg1 b5 19. Ncd2 Be6 20. Kb1 Rg8 21. Rh2 Bg4 22. Qf1 Bf8 23. h6 Rg6 24. g3 fxg3 25. Rxg3 Rxh6 26. Nh4 Be6 27. f4 Qd7 28. f5 Bg8 29. Qh1 Bf7 30. Ng6+ Bxg6 31. fxg6 Qg7 32. Qg2 Rxh2 33. Qxh2 Qh6 34. Qg2 Bg7 35. gxh7 Qxh7 36. Rh3 Bh6 37. Qh2 Kg7 38. Nf3 Rh8 39. Nh4 Bf4 40. Qg2+ Kf7 41. Nf5 Qg8 42. Qxg8+ Rxg8 43. Rh7+ Ke8 44. a3 Kd8 45. Ng7 Kd7 46. Nf5+ Kd8 47. Rf7 c4 48. Ng7 Bh6 49. Ne6+ Ke8 50. Rxf6 Be3 51. Nxc7+ Kd7 52. Nd5 Bc5 53. dxc4 bxc4 54. Rxa6 Rg1+ 55. Ka2 Rg2 56. c3 1-0

