[Event "Malakhatko Memorial op"]
[Site "Chess.com INT"]
[Date "2023.06.14"]
[Round "5"]
[White "Nikitenko, Valeriy"]
[Black "Olenchuk, Sergiy"]
[Result "1-0"]
[ECO "D31"]
[PlyCount "169"]
[EventDate "2023.06.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. e3 c6 5. f4 Nbd7 6. Nf3 Bd6 7. c5 Bc7 8. b4 a6 9. a4 0-0 10. Bd2 Ne4 11. Nxe4 dxe4 12. Ng5 h6 13. Nxe4 Nf6 14. Ng3 Nd5 15. Bd3 f6 16. 0-0 Bd7 17. f5 e5 18. e4 Nf4 19. Bxf4 exf4 20. Bc4+ Kh8 21. Ne2 Re8 22. d5 Be5 23. Nxf4 Bxa1 24. Ng6+ Kh7 25. Qxa1 cxd5 26. Bxd5 Bc6 27. Rd1 Qc7 28. g3 Rad8 29. Nf4 Qe5 30. Qxe5 Rxe5 31. Bg8+ Kxg8 32. Rxd8+ Kh7 33. Ng6 Re8 34. Rd4 Bxa4 35. Kf2 Bc6 36. Kf3 Rg8 37. Ne7 Re8 38. Nxc6 bxc6 39. Rd6 Rb8 40. Rxc6 Rxb4 41. Rxa6 Rb3+ 42. Kf4 Rb2 43. h4 Rf2+ 44. Ke3 Rc2 45. c6 Rc3+ 46. Kf4 g5+ 47. fxg6+ Kxg6 48. g4 Rc1 49. Ra7 Rf1+ 50. Ke3 Re1+ 51. Kf3 Rf1+ 52. Ke2 Rc1 53. c7 h5 54. Kf3 hxg4+ 55. Kxg4 Rg1+ 56. Kf4 Rf1+ 57. Ke3 Rc1 58. Kd4 Kh5 59. Kd5 Kxh4 60. Ke6 Rc6+ 61. Kf5 Kg3 62. e5 fxe5 63. Kxe5 Rc5+ 64. Kd6 Rc1 65. Kd7 Rd1+ 66. Kc8 Re1 67. Kb8 Rb1+ 68. Rb7 Rc1 69. c8Q Rxc8+ 70. Kxc8 Kf4 71. Re7 Kf5 72. Kd7 Kf4 73. Kd6 Kf5 74. Re8 Kf4 75. Kd5 Kf3 76. Kd4 Kf2 77. Kd3 Kf3 78. Rf8+ Kg4 79. Ke4 Kg5 80. Rf1 Kg4 81. Rg1+ Kh3 82. Kf3 Kh2 83. Rg7 Kh1 84. Kf2 Kh2 85. Rh7# 1-0

[Event "Malakhatko Memorial op"]
[Site "Chess.com INT"]
[Date "2023.06.14"]
[Round "11"]
[White "Olenchuk, Sergiy"]
[Black "Bashutsky, Vladyslav"]
[Result "1-0"]
[ECO "E20"]
[PlyCount "43"]
[EventDate "2023.06.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 Bxc3 5. Bxc3 Ne4 6. Qc2 f5 7. Nf3 0-0 8. g3 b6 9. Bg2 Bb7 10. 0-0 Rf6 11. d5 Rh6 12. Rad1 Qe7 13. Ne5 d6 14. Nf3 Nd7 15. dxe6 Qxe6 16. Nd4 Qe7 17. Nxf5 Qe8 18. Nxh6+ gxh6 19. Bxe4 Bxe4 20. Qd2 Nc5 21. Qd4 Qf7 22. Qh8# 1-0

[Event "Malakhatko Memorial op"]
[Site "Chess.com INT"]
[Date "2023.06.14"]
[Round "3"]
[White "Olenchuk, Sergiy"]
[Black "Bondarenko, Artur1111"]
[Result "1-0"]
[ECO "D06"]
[PlyCount "119"]
[EventDate "2023.06.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nf6 3. Nc3 Bf5 4. Qb3 dxc4 5. Qxc4 e6 6. Bg5 Be7 7. e3 a6 8. Bd3 Bxd3 9. Qxd3 0-0 10. Nf3 h6 11. Bh4 c6 12. 0-0 Nbd7 13. a3 Nd5 14. Bxe7 Qxe7 15. Nxd5 exd5 16. b4 f5 17. Rac1 Nf6 18. Nh4 Ne4 19. Ng6 Qg5 20. Nxf8 Rxf8 21. f3 Nd6 22. Rce1 Rf6 23. Qb3 Rg6 24. Rf2 Nc4 25. e4 fxe4 26. fxe4 Kh8 27. e5 Nd2 28. Qg3 Qxg3 29. hxg3 Ne4 30. Rf7 Kg8 31. Rxb7 Rxg3 32. e6 Rxa3 33. e7 Kf7 34. Rf1+ Nf6 35. Re1 Ne8 36. Rb6 Rb3 37. Rxc6 Rxb4 38. Rxa6 Rxd4 39. Rae6 g5 40. R6e3 Rd2 41. Rf1+ Kg6 42. Rf8 Rd1+ 43. Kh2 Nd6 44. Re6+ Kh5 45. Rxd6 Kh4 46. Rh8 h5 47. Rdh6 g4 48. g3+ Kg5 49. Rd6 Rd2+ 50. Kh1 Rd1+ 51. Kg2 Rd2+ 52. Kf1 Rd1+ 53. Ke2 Rg1 54. e8Q Rxg3 55. Rg6+ Kh4 56. Qe7+ Kh3 57. Rxh5+ Kg2 58. Qd6 Rf3 59. Qxd5 g3 60. Qxf3+ 1-0

[Event "Malakhatko Memorial op"]
[Site "Chess.com INT"]
[Date "2023.06.14"]
[Round "9"]
[White "Olenchuk, Sergiy"]
[Black "Semenova, Natalia"]
[Result "1-0"]
[ECO "E70"]
[PlyCount "105"]
[EventDate "2023.06.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. e5 Ne8 6. f4 d6 7. Nf3 dxe5 8. fxe5 f6 9. Be2 fxe5 10. dxe5 Nc6 11. Qxd8 Nxd8 12. 0-0 Nc6 13. Bg5 Rf7 14. Nd5 e6 15. Nc3 Nxe5 16. Nxe5 Bxe5 17. Rxf7 Kxf7 18. Rf1+ Kg7 19. Rf3 Nd6 20. b3 h6 21. Bd8 Bd7 22. Bxc7 Rc8 23. Bxd6 Bxd6 24. Ne4 Ba3 25. Rd3 Bc6 26. Nd6 Rd8 27. Nf5+ Kf6 28. Rxd8 exf5 29. Bf3 Be7 30. Rd1 Bxf3 31. gxf3 Bc5+ 32. Kg2 b6 33. Rd5 g5 34. Kg3 f4+ 35. Kg4 Ke6 36. h4 Be7 37. hxg5 Bxg5 38. Rxg5 hxg5 39. Kxg5 Ke5 40. Kg4 a6 41. a3 a5 42. b4 axb4 43. axb4 Kd4 44. c5 Kc4 45. cxb6 Kxb4 46. b7 Kc3 47. b8Q Kd3 48. Qxf4 Ke2 49. Qe4+ Kf2 50. f4 Kf1 51. Qc2 Ke1 52. Kf3 Kf1 53. Qf2# 1-0

[Event "Malakhatko Memorial op"]
[Site "Chess.com INT"]
[Date "2023.06.14"]
[Round "4"]
[White "Olenchuk, Sergiy"]
[Black "Stepykin, Nikolay"]
[Result "1/2-1/2"]
[ECO "E43"]
[PlyCount "115"]
[EventDate "2023.06.14"]
[EventType "swiss (blitz)"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 214 Extra"]
[Source "ChessBase"]
[SourceDate "2023.07.31"]
[SourceVersion "1"]
[SourceVersionDate "2023.07.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. a3 Bxc3+ 6. bxc3 Bb7 7. e3 d6 8. Be2 Nbd7 9. 0-0 Ne4 10. Qc2 0-0 11. Nd2 Ndf6 12. f3 Nxd2 13. Qxd2 d5 14. cxd5 exd5 15. Bd3 c5 16. Re1 Re8 17. Qc2 c4 18. Bf5 g6 19. Bh3 Qc7 20. Bd2 Bc8 21. Bxc8 Raxc8 22. e4 Re7 23. e5 Nd7 24. Bg5 Re6 25. f4 Rce8 26. Qf2 f6 27. Bh6 fxe5 28. fxe5 R6e7 29. Qf3 Qb7 30. Rf1 Qc6 31. Ra2 g5 32. Bxg5 Rg7 33. Bf6 Nxf6 34. exf6 Rf7 35. Qg4+ Kh8 36. Raf2 Re6 37. Re2 Rexf6 38. Rxf6 Qxf6 39. Re8+ Rf8 40. Rxf8+ Qxf8 41. Qf3 Qxa3 42. h3 Qd6 43. Kh1 a5 44. Qf5 a4 45. Qc8+ Kg7 46. Qb7+ Kh6 47. Qa6 a3 48. Qa4 Kg5 49. Qc2 b5 50. Qd2+ Kg6 51. Qc2+ Kg7 52. Qe2 Kf7 53. Qh5+ Kg7 54. Qg4+ Kf7 55. Qf5+ Kg7 56. Qg4+ Kf8 57. Qf5+ Kg7 58. Qg4+ 1/2-1/2

