[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.31"]
[Round "9"]
[White "Kostash, Roman"]
[Black "Mikhalsky, Vladimir"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "1774"]
[BlackElo "2269"]
[PlyCount "82"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. g3 c5 2. c4 Nf6 3. Bg2 d5 4. Nf3 Nc6 5. 0-0 e5 6. cxd5 Nxd5 7. Nc3 Nc7 8. d3 Be7 9. Be3 Bd7 10. Rc1 0-0 11. Na4 b6 12. b4 Nxb4 13. Nxe5 Nbd5 14. Nxd7 Qxd7 15. Bd2 Rad8 16. Qb3 Bf6 17. Rfd1 Rfe8 18. e3 Ne6 19. Be1 Ne7 20. Nc3 Rc8 21. Qb5 Red8 22. a4 Nc7 23. Qxd7 Rxd7 24. Kf1 Rcd8 25. Ke2 Ncd5 26. Ne4 Be5 27. f4 Bb8 28. Bh3 f5 29. Ng5 Re8 30. e4 h6 31. exd5 hxg5 32. fxg5 Nxd5+ 33. Kf3 Re3+ 34. Kf2 Be5 35. Kg1 Bd4 36. Bf2 g6 37. Bg2 Nb4 38. Bf1 Nc6 39. Bg2 Ne5 40. Bf1 Ng4 41. Rc2 Nxf2 0-1

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.30"]
[Round "8"]
[White "Berin, Artem"]
[Black "Kostash, Roman"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2140"]
[BlackElo "1774"]
[PlyCount "41"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 gxf6 9. h4 Be7 10. h5 Be4 11. Nxe4 dxe4 12. Qxe4 Qa5+ 13. Kd1 Nd7 14. Bd3 Rg8 15. Ke2 Qb4 16. Rb1 0-0-0 17. a3 Qd6 18. Nf3 f5 19. Qxf5 Rxg2 20. Ne5 Qc7 21. Qh3 1-0

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.29"]
[Round "7"]
[White "Kostash, Roman"]
[Black "Kaliuzhny, Andrey"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1774"]
[BlackElo "2195"]
[PlyCount "104"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. g3 e5 2. c4 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. e3 a6 6. Nge2 d6 7. 0-0 Bf5 8. a3 Qe7 9. d3 0-0 10. b4 Ba7 11. Qc2 Qd7 12. Re1 Rab8 13. Bd2 Ne7 14. Nd5 Nfxd5 15. cxd5 Rbc8 16. a4 c6 17. dxc6 Nxc6 18. Qb3 b5 19. axb5 axb5 20. Ra6 Ne7 21. Rea1 Rc7 22. Qb1 d5 23. Nc3 Bb8 24. R1a3 Rc6 25. Rxc6 Qxc6 26. Ra5 Qg6 27. e4 dxe4 28. dxe4 Bd7 29. Nxb5 Qb6 30. Be3 Qb7 31. Nc3 Nc6 32. Rb5 Qa8 33. Bc5 Re8 34. Qd1 Be6 35. Bf1 g6 36. Nd5 Rd8 37. Rb6 Kg7 38. Qf3 f5 39. b5 Bxd5 40. exd5 Nd4 41. Bxd4 exd4 42. Rc6 Qa2 43. Bc4 Qb1+ 44. Kg2 Qe4 45. b6 Rd7 46. Re6 Qc2 47. Bb5 Rd6 48. Re7+ Kf6 49. Rb7 Qc8 50. Bc6 Qd8 51. Qd3 Kg5 52. Qxd4 Rxc6 1-0

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.29"]
[Round "6"]
[White "Lornye, Pylyp"]
[Black "Kostash, Roman"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2192"]
[BlackElo "1774"]
[PlyCount "67"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d3 d5 6. Nbd2 Nc6 7. e4 dxe4 8. dxe4 e5 9. c3 h6 10. Qe2 Be6 11. Nc4 Nd7 12. Rd1 Qc8 13. Ne3 f5 14. Nh4 f4 15. Nd5 g5 16. Nf5 Kh7 17. Bh3 Nf6 18. Nxf6+ Rxf6 19. b3 Qe8 20. Bg4 Bf7 21. Ba3 h5 22. Nxg7 Kxg7 23. Bd7 Qg8 24. Qb5 fxg3 25. hxg3 h4 26. Bxc6 Rxc6 27. Qxe5+ Kh6 28. gxh4 gxh4+ 29. Kh2 Re8 30. Qf4+ Kh7 31. Rd7 Kg7 32. Rg1+ Rg6 33. Rxg6+ Kxg6 34. Qf5+ 1-0

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.28"]
[Round "5"]
[White "Kostash, Roman"]
[Black "Filippskikh, Oleksii"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "1774"]
[BlackElo "2037"]
[PlyCount "92"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. g3 d5 2. c4 d4 3. Bg2 c5 4. b4 cxb4 5. a3 bxa3 6. Bxa3 Nf6 7. Nf3 Nc6 8. 0-0 e5 9. Bxf8 Kxf8 10. d3 g6 11. Nbd2 h6 12. Qb3 Kg7 13. Rfb1 Rb8 14. Qb2 Be6 15. Ne1 Qd7 16. Ne4 Nxe4 17. Bxe4 h5 18. h4 Qc7 19. Ra3 f5 20. Bg2 Rhf8 21. e3 dxe3 22. fxe3 Kh7 23. Nf3 Kh6 24. Rb3 b6 25. Rb5 e4 26. Ng5 Bf7 27. Kh2 exd3 28. Qc3 a6 29. Rd5 Rbe8 30. Qxd3 Bxd5 31. cxd5 Ne5 32. Qd4 Ng4+ 33. Kh3 Rxe3 34. d6 Qd7 35. Qf4 Rb8 36. Rc1 Rc8 37. Rxc8 Qxc8 38. d7 Nf2+ 39. Kh2 Ng4+ 40. Kh3 Nf2+ 41. Qxf2 Rxg3+ 42. Kxg3 Qxd7 43. Qb2 f4+ 44. Kf2 Qc8 45. Be4 f3 46. Qxb6 Qg4 1-0

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.27"]
[Round "3"]
[White "Kostash, Roman"]
[Black "Sytnyk, Liliya"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "1774"]
[BlackElo "1368"]
[PlyCount "61"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. c4 b6 5. Nc3 Bb7 6. Bd3 Nbd7 7. cxd5 Nxd5 8. 0-0 Be7 9. Nxd5 Bxd5 10. Bd2 0-0 11. b4 c5 12. bxc5 bxc5 13. e4 Bc6 14. Rc1 Nf6 15. Qe2 Nd7 16. Rfe1 Re8 17. g3 Qb6 18. Rb1 Qc7 19. Bf4 Bd6 20. d5 exd5 21. e5 Qc8 22. Bxh7+ Kf8 23. Qd3 Bc7 24. Qf5 f6 25. e6 Nb6 26. Bh6 Qd8 27. e7+ Rxe7 28. Qxf6+ Ke8 29. Bg6+ Kd7 30. Qf5+ Kd6 31. Bf4+ 1-0

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.27"]
[Round "4"]
[White "Shton, Roman"]
[Black "Kostash, Roman"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2074"]
[BlackElo "1774"]
[PlyCount "156"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Bc4 Bg4 7. h3 Bxf3 8. Qxf3 Nbd7 9. Qd1 0-0 10. 0-0 a6 11. a4 Ne8 12. Be3 Qb6 13. Rb1 Qb4 14. Be2 Nc7 15. Bd2 Qd4 16. Qc1 Nf6 17. Bd3 e6 18. dxe6 fxe6 19. b3 Qe5 20. f4 Qd4+ 21. Kh2 Nd7 22. Ne2 Qf6 23. c4 a5 24. f5 Ne5 25. Bc2 Nc6 26. Bg5 Qf7 27. Qd2 Be5+ 28. Kg1 gxf5 29. exf5 Qh5 30. Be4 exf5 31. Bxf5 h6 32. Bxh6 Rxf5 33. Rxf5 Qxf5 34. Rf1 Qg6 35. Be3 Re8 36. Nf4 Qe4 37. Nh5 Nd4 38. Kh1 Qg6 39. Nf4 Qg3 40. Bg1 Nce6 41. Nd5 Qg6 42. Qf2 Kg7 43. Ne3 Rf8 44. Qe1 Nf4 45. Ng4 Rh8 46. Bh2 Qxg4 47. Rxf4 Qh5 48. Rg4+ Kf7 49. Qe4 Bxh2 50. Qxb7+ Ke6 51. Rg7 Be5 52. Qe7+ Kf5 53. g4+ Qxg4 54. Qf7+ Bf6 55. Qd7+ Ne6 56. Rxg4 Rxh3+ 57. Kg2 Re3 58. Rg3 Rxg3+ 59. Kxg3 Be5+ 60. Kf2 Kf6 61. Ke1 Bc3+ 62. Kd1 Ke5 63. Qe7 Bb4 64. Kc2 Be1 65. Qe8 Bb4 66. Kd3 Kf5 67. Qh5+ Kf6 68. Ke4 Ke7 69. Qh7+ Kf6 70. Kd5 Nd4 71. Kxd6 Kg5 72. Qg7+ Kf4 73. Qe5+ Kf3 74. Kd5 Ne2 75. Qe4+ Kf2 76. Qc2 Ke3 77. Qe4+ Kf2 78. Kd6 Nd4 1/2-1/2

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.26"]
[Round "2"]
[White "Alexikov, Alexander"]
[Black "Kostash, Roman"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2223"]
[BlackElo "1774"]
[PlyCount "145"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. g3 Nf6 5. Bg2 c6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. d3 Be7 10. Bd2 0-0 11. Qe2 Nbd7 12. f4 Nb6 13. 0-0-0 a5 14. Rhf1 a4 15. f5 a3 16. b3 exf5 17. Rxf5 Re8 18. Qf2 Nbd5 19. Nxd5 cxd5 20. Bc3 Rc8 21. Bd4 Qa5 22. g4 Bc5 23. Bxc5 Rxc5 24. Qd2 Re2 25. Qxe2 Qc3 26. Rf2 Qb2+ 27. Kd2 Rxc2+ 28. Ke1 Rxe2+ 29. Rxe2 Qc3+ 30. Kf1 h6 31. Bf3 Kf8 32. Kg2 g6 33. Rf2 Qd4 34. Be2 Nd7 35. Rc1 Ne5 36. Rc8+ Kg7 37. Rc7 b5 38. Bf1 h5 39. gxh5 gxh5 40. Re7 Kg6 41. Re8 h4 42. Rg8+ Kh7 43. Rg5 Kh6 44. Rgf5 Qe3 45. Kh1 Kg6 46. R5f4 Kg5 47. d4 Nd3 48. Rf5+ Kg6 49. R2f3 Qe1 50. Rf6+ Kg7 51. Rxf7+ Kg8 52. R7f5 Nc1 53. Rg5+ Kh7 54. Re5 Qd1 55. Rf4 Nd3 56. Re7+ Kg6 57. Rf8 Nc1 58. Kg2 Qxd4 59. Ref7 Qe4+ 60. Rf3 Kg7 61. R8f4 Qe1 62. Rg4+ Kh6 63. Rf2 Kh5 64. Rf5+ Kh6 65. Rxd5 Nxa2 66. Bd3 Qd2+ 67. Kf3 Qd1+ 68. Ke4 Qc1 69. Ke5 Qc7+ 70. Rd6+ Kh5 71. Bg6+ Kh6 72. Rxh4+ Kg5 73. Rh5# 1-0

[Event "Kiev Spring op"]
[Site "Kiev"]
[Date "2023.03.25"]
[Round "1"]
[White "Kostash, Roman"]
[Black "Popadiuk, Roman"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "1774"]
[PlyCount "77"]
[EventDate "2023.03.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "UKR"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 c6 2. Nf3 d5 3. c4 Nf6 4. e3 Bg4 5. Qb3 b6 6. Ne5 e6 7. Nc3 Be7 8. cxd5 cxd5 9. Bb5+ Kf8 10. a4 Qc7 11. Bd2 Bd6 12. Nxg4 Nxg4 13. Be2 Nf6 14. Nb5 Qd7 15. Nxd6 Nc6 16. Bb4 Kg8 17. Ba3 e5 18. dxe5 Nxe5 19. h3 Qe6 20. 0-0 Rd8 21. Rac1 g6 22. f4 Ned7 23. Rc7 Nc5 24. Bxc5 bxc5 25. Nxf7 Rd7 26. Rxd7 Qxd7 27. Nxh8 Kxh8 28. Rd1 d4 29. exd4 cxd4 30. Qb8+ Kg7 31. b3 Ne4 32. Qe5+ Nf6 33. Rxd4 Qb7 34. Bb5 Qb6 35. Kh2 a6 36. Rd6 Qa5 37. Qxf6+ Kh6 38. Qf8+ Kh5 39. g4+ 1-0

