[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.29"]
[Round "7"]
[White "Kostin, Andrei"]
[Black "Kutyanina, Mariya"]
[Result "1/2-1/2"]
[ECO "E03"]
[WhiteElo "2154"]
[BlackElo "1868"]
[PlyCount "23"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. c4 dxc4 5. Qa4+ Nbd7 6. Bg2 a6 7. Qxc4 b5 8. Qc2 Bb7 9. 0-0 c5 10. dxc5 Bxc5 11. Nbd2 Rc8 12. Qb1 1/2-1/2

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.29"]
[Round "8"]
[White "Uryupin, Igor Nikolaevich"]
[Black "Kostin, Andrei"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2133"]
[BlackElo "2154"]
[PlyCount "27"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. 0-0 Bxc3 9. d5 Ne7 10. bxc3 d6 11. Qd4 Nf6 12. Bg5 Nf5 13. Rfe1+ Kf8 14. Qf4 1/2-1/2

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.28"]
[Round "6"]
[White "Lomakina, Galja"]
[Black "Kostin, Andrei"]
[Result "0-1"]
[ECO "B25"]
[WhiteElo "2042"]
[BlackElo "2154"]
[PlyCount "108"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 g6 3. Bg2 Nf6 4. 0-0 Bg7 5. d3 0-0 6. e4 d6 7. Nc3 Nc6 8. h3 Rb8 9. a4 a6 10. Be3 Qc7 11. Qd2 Re8 12. Bh6 Bh8 13. Nh4 b5 14. axb5 axb5 15. f4 b4 16. Ne2 Nd4 17. Nxd4 cxd4 18. b3 Bb7 19. f5 Nd7 20. Nf3 Rec8 21. Rac1 Qc5 22. Ng5 Ne5 23. fxg6 hxg6 24. Qf4 Bf6 25. h4 Bxg5 26. Bxg5 f6 27. Bh6 Kh7 28. Bh3 Rg8 29. Be6 Rh8 30. Qd2 Bc8 31. Bc4 Bh3 32. Rf2 Ng4 33. Bf4 e5 34. Bg5 Rbf8 35. Bxf6 Rxf6 36. Rxf6 Nxf6 37. Qg5 Kg7 38. Kh2 Bc8 39. Rf1 Rf8 40. Kg2 Qc7 41. h5 Nxh5 42. Rxf8 Kxf8 43. Qxg6 Ng7 44. Qf6+ Ke8 45. Qh6 Qe7 46. Qd2 Nh5 47. Qh6 Nf6 48. Qd2 Ng4 49. Bb5+ Kf8 50. Qxb4 Qf6 51. Qe1 Ne3+ 52. Kg1 Ke7 53. c4 Qf3 54. Qf2 Qd1+ 0-1

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.28"]
[Round "5"]
[White "Mikhnenko, Alexander"]
[Black "Kostin, Andrei"]
[Result "1/2-1/2"]
[ECO "D23"]
[WhiteElo "2052"]
[BlackElo "2154"]
[PlyCount "86"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ c6 5. Qxc4 Bf5 6. g3 Qd5 7. Nbd2 Nbd7 8. Bg2 Nb6 9. Qc3 Ne4 10. Nxe4 Bxe4 11. 0-0 Rd8 12. Be3 e6 13. Ne1 Bxg2 14. Nxg2 Bd6 15. Rfd1 0-0 16. Bf4 Be7 17. Ne3 Qh5 18. Bc7 Nd5 19. Nxd5 Rxd5 20. Qe1 Rd7 21. Ba5 Rd5 22. Bc3 Qh3 23. Qf1 Qxf1+ 24. Kxf1 Rfd8 25. Rd3 c5 26. dxc5 Rxd3 27. exd3 Bxc5 28. Ke2 f6 29. Rc1 Bb6 30. a4 Rc8 31. Bd2 Rxc1 32. Bxc1 a6 33. Be3 Bc7 34. d4 Kf7 35. Kd3 Ke7 36. Kc4 Bd6 37. b4 Kd7 38. b5 Be7 39. bxa6 bxa6 40. d5 e5 41. f4 exf4 42. Bxf4 Bd6 43. Be3 h5 1/2-1/2

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.27"]
[Round "4"]
[White "Kostin, Andrei"]
[Black "Suvorov, Alexander"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "2154"]
[BlackElo "1856"]
[PlyCount "54"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. e3 Nbd7 6. Nf3 Bb4 7. cxd5 exd5 8. Qc2 Qa5 9. Bd3 0-0 10. 0-0 h6 11. Bh4 Re8 12. Nd2 Bd6 13. a3 Qc7 14. Bg3 Nb6 15. b3 Qe7 16. Bxd6 Qxd6 17. b4 a6 18. Nb3 Ng4 19. g3 Nf6 20. Rfc1 Bh3 21. Nc5 Re7 22. a4 Rae8 23. a5 Nc8 24. Ne2 Bg4 25. Nf4 Bf3 26. Bf1 Ng4 27. Nfd3 Qg6 1/2-1/2

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.27"]
[Round "3"]
[White "Shvadchenko, Grigory F"]
[Black "Kostin, Andrei"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1909"]
[BlackElo "2154"]
[PlyCount "166"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. Bf4 c5 4. e3 Nc6 5. Ne5 Qb6 6. b3 cxd4 7. Nxc6 Qxc6 8. exd4 Bf5 9. Bd3 Bxd3 10. Qxd3 Rc8 11. c3 e6 12. 0-0 Be7 13. f3 0-0 14. Rc1 b5 15. Nd2 Ba3 16. Rc2 a5 17. Nf1 Nh5 18. Bd2 Bd6 19. g3 a4 20. bxa4 bxa4 21. Rb2 Ba3 22. Rb5 Rb8 23. Rab1 Bd6 24. f4 g6 25. R1b2 Nf6 26. Ne3 Ne4 27. Be1 Rxb5 28. Qxb5 Qa8 29. Qb7 Qa5 30. Rb5 Qd8 31. Qa7 Qc8 32. Qa5 Qc6 33. Qb6 Qa8 34. Qb7 Qd8 35. Qb6 Qf6 36. Ng4 Qe7 37. Qb7 Qd8 38. c4 Bb8 39. c5 Kg7 40. Nf2 Nxf2 41. Bxf2 g5 42. fxg5 Qxg5 43. Rb1 Bf4 44. Qb2 h5 45. Qe2 h4 46. Qf3 Bb8 47. Qe3 Qf5 48. Rf1 hxg3 49. Bxg3 Qg4 50. Kh1 Bxg3 51. Qxg3 Qxg3 52. hxg3 Rc8 53. Rc1 Rc6 54. Kg2 f6 55. Kf3 e5 56. Ke3 Kg6 57. Rb1 Rc8 58. Rb6 Re8 59. c6 Rc8 60. Ra6 Kf5 61. Rxa4 Rxc6 62. g4+ Ke6 63. dxe5 Kxe5 64. Kd3 Rc1 65. Rb4 Rg1 66. a4 Rg3+ 67. Kd2 d4 68. Rb5+ Ke4 69. Rf5 Rg2+ 70. Kd1 Ke3 71. Rxf6 Rg1+ 72. Kc2 d3+ 73. Kc3 Rc1+ 74. Kb4 d2 75. Rd6 d1Q 76. Rxd1 Rxd1 77. Kc5 Ra1 78. Kb5 Kd4 79. a5 Kd5 80. Kb6 Kd6 81. a6 Rb1+ 82. Ka7 Kc7 83. g5 Rb6 0-1

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.26"]
[Round "1"]
[White "Geranichev, Mikhail"]
[Black "Kostin, Andrei"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2060"]
[BlackElo "2154"]
[PlyCount "122"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 c5 5. d3 0-0 6. e4 d6 7. Nbd2 Nc6 8. Nc4 b5 9. Ne3 Rb8 10. h4 Ng4 11. c3 b4 12. Qc2 bxc3 13. bxc3 Nb4 14. cxb4 Bxa1 15. bxc5 dxc5 16. Qxc5 Qxd3 17. Nd5 e6 18. Ne7+ Kg7 19. Ba3 Re8 20. Rxa1 Rb1+ 21. Rxb1 Qxb1+ 22. Qc1 Qxc1+ 23. Bxc1 Rxe7 24. Bb2+ f6 25. e5 f5 26. Nd4 Kf7 27. Nb5 Ba6 28. Nd6+ Kg8 29. Bf3 Nh6 30. Ba3 Rc7 31. Bd1 Bb7 32. Ne8 Rc3 33. Bb3 Bc8 34. Kf1 Nf7 35. Bb2 Rc6 36. Nf6+ Kh8 37. f4 Ba6+ 38. Ke1 Bc4 39. Kd2 Bxb3 40. axb3 Rc8 41. Bd4 a6 42. b4 Nh6 43. h5 Ng8 44. hxg6 hxg6 45. Nxg8 Kxg8 46. Bc5 Kf7 47. Kd3 Ke8 48. Kc4 Rb8 49. Bd6 Rb5 50. Bc5 Kd7 51. Kc3 Kc6 52. Kd4 Rxc5 53. bxc5 Kb5 54. c6 Kxc6 55. Kc4 a5 56. Kb3 Kb5 57. Kc3 a4 58. Kd3 Kb4 59. Kc2 a3 60. Kb1 Kb3 61. Ka1 a2 0-1

[Event "Tambov Pavlyutin Memorial 9th"]
[Site "Tambov"]
[Date "2019.06.26"]
[Round "2"]
[White "Kostin, Andrei"]
[Black "Gorshechnikov, Andrey V"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2154"]
[BlackElo "1889"]
[PlyCount "60"]
[EventDate "2019.06.26"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bh4 d5 4. f3 Nd6 5. Nc3 Nc4 6. Qc1 c6 7. e4 Qb6 8. Bxc4 dxc4 9. Nge2 Nd7 10. Bf2 e6 11. 0-0 Qa5 12. d5 cxd5 13. exd5 Nf6 14. dxe6 Bxe6 15. Nf4 Bc5 16. Re1 Bxf2+ 17. Kxf2 Qb6+ 18. Qe3 Qxe3+ 19. Rxe3 0-0 20. Nxe6 fxe6 21. Rxe6 Rad8 22. Rae1 Rd2+ 23. R1e2 Rfd8 24. Ke1 Rxe2+ 25. Rxe2 Kf7 26. Ne4 Nd5 27. Rd2 Ke7 28. g3 Ne3 29. Rxd8 Kxd8 30. Kd2 Nd5 1-0

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.19"]
[Round "9"]
[White "Kostin, Andrei"]
[Black "Najdin, Danil"]
[Result "1/2-1/2"]
[ECO "C69"]
[WhiteElo "2147"]
[BlackElo "2238"]
[PlyCount "129"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. 0-0 f6 6. d4 Bg4 7. dxe5 Qxd1 8. Rxd1 fxe5 9. Rd3 Bd6 10. Nbd2 Nf6 11. Nc4 0-0 12. Nfxe5 Be2 13. Re3 Bxc4 14. Nxc4 Ng4 15. Rf3 Bxh2+ 16. Kh1 Bd6 17. Rxf8+ Rxf8 18. f3 Ne5 19. Nxe5 Bxe5 20. Be3 Rd8 21. Rb1 Kf7 22. Kg1 Ke6 23. Kf2 h5 24. Ke2 Bf6 25. b3 g5 26. Rh1 h4 27. Rd1 Rg8 28. Kf2 Be5 29. Ke2 a5 30. a4 b5 31. Bd4 Bxd4 32. Rxd4 g4 33. Ke3 gxf3 34. gxf3 h3 35. Rd2 Rg3 36. Rh2 Ke5 37. c3 c5 38. axb5 c4 39. bxc4 Kd6 40. Kf4 Rg1 41. Rxh3 Kc5 42. Rh7 Kxc4 43. Rxc7+ Kxb5 44. Ke5 Rg5+ 45. Kd6 Rg6+ 46. Kd5 Rf6 47. e5 Rxf3 48. e6 Rd3+ 49. Ke5 a4 50. e7 Re3+ 51. Kd6 a3 52. Ra7 Rd3+ 53. Ke6 Re3+ 54. Kd7 Rd3+ 55. Ke6 Re3+ 56. Kd5 Kb6 57. Rxa3 Rxe7 58. Kd6 Re3 59. Rb3+ Ka5 60. Kc5 Ka6 61. Kd4 Rh3 62. Rb1 Rh4+ 63. Kc5 Rh5+ 64. Kc6 Rh6+ 65. Kc5 1/2-1/2

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.18"]
[Round "8"]
[White "Kostin, Andrei"]
[Black "Agapov, Yury N"]
[Result "1-0"]
[ECO "A39"]
[WhiteElo "2147"]
[BlackElo "1964"]
[PlyCount "91"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 a6 9. c5 Qa5 10. Nb3 Qc7 11. Bf4 e5 12. Bg5 b5 13. Bxf6 Bxf6 14. Nd5 Qd8 15. Na5 Ra7 16. Nxc6 dxc6 17. Nb4 Rd7 18. Qb3 Rd2 19. Nxc6 Qc7 20. Rad1 Be6 21. Qa3 Rxe2 22. Qf3 e4 23. Qxe2 Qxc6 24. Qxe4 Qxc5 25. Rc1 Qb6 26. b3 Qa5 27. Qe2 Re8 28. Bd5 Bd7 29. Qf3 Kg7 30. Bc6 Bxc6 31. Rxc6 Be5 32. Qe2 Re7 33. Qc2 h5 34. h4 Qa3 35. Qc5 Qxc5 36. Rxc5 Bd4 37. Rc6 a5 38. Rd1 Bb2 39. Rd2 Ba3 40. Rd5 Rb7 41. Ra6 Bb4 42. Kg2 Kf8 43. Rd8+ Ke7 44. Rda8 Bc5 45. Rxa5 Kf6 46. a4 1-0

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.17"]
[Round "7"]
[White "Astafurov, Arseniy"]
[Black "Kostin, Andrei"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2081"]
[BlackElo "2147"]
[PlyCount "111"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. e3 g6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Qb3 Nxc3 9. Bc4 e6 10. bxc3 Bd7 11. Be2 Na5 12. Qb2 Bg7 13. Bf4 0-0 14. 0-0 Rc8 15. Ne5 f6 16. Nxd7 Qxd7 17. Rfe1 e5 18. dxe5 fxe5 19. Be3 b6 20. Qb4 Qf7 21. Rf1 Nc4 22. Bg5 e4 23. Rad1 Na5 24. Qa4 Rc7 25. Bg4 Qc4 26. Qxc4+ Nxc4 27. Bd8 Rc6 28. Bd7 Ne5 29. Bxc6 Nxc6 30. Bg5 Bxc3 31. Rc1 Nd4 32. Kh1 Bb4 33. Be3 Nf5 34. g3 Ba3 35. Rc3 Nxe3 36. Rxe3 Bc5 37. Rxe4 Rxf2 38. Rxf2 Bxf2 39. Re7 b5 40. Rb7 Bb6 41. Kg2 b4 42. Kf3 Bc5 43. Ke4 a5 44. Rb5 Bg1 45. Kf3 Kg7 46. Rxa5 Bd4 47. Rb5 Bc3 48. Rb7+ Kh6 49. h4 Be1 50. g4 Bxh4 51. Rxb4 Kg5 52. a4 Be1 53. Rb5+ Kh4 54. a5 Bc3 55. a6 Bd4 56. Rb7 1-0

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.16"]
[Round "6"]
[White "Kostin, Andrei"]
[Black "Sychev, Vitaly"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "2147"]
[BlackElo "1971"]
[PlyCount "55"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Ng5 e6 7. Qe2 Bd6 8. N1f3 0-0 9. Bd2 Qe7 10. 0-0-0 c5 11. Bc3 h6 12. dxc5 Bf4+ 13. Kb1 Bxg5 14. Nxg5 hxg5 15. h4 g4 16. h5 e5 17. h6 g6 18. h7+ Kh8 19. Bb5 Qxc5 20. Bxd7 Nxd7 21. Qxg4 Qxf2 22. Qg5 Qf5 23. Qe7 b6 24. Rdf1 Qe4 25. Rxf7 Rxf7 26. Qxf7 Bb7 27. Qxd7 Bc6 28. Qxc6 1-0

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.15"]
[Round "5"]
[White "Gagloev, Dmitry"]
[Black "Kostin, Andrei"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2073"]
[BlackElo "2147"]
[PlyCount "28"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Nd5 Nxd5 6. cxd5 Nd4 7. Nxd4 exd4 8. Qc2 Qe7 9. Bg2 Bc5 10. 0-0 0-0 11. e3 dxe3 12. dxe3 Bb6 13. a4 a5 14. Bd2 Bc5 1/2-1/2

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.14"]
[Round "4"]
[White "Kostin, Andrei"]
[Black "Kutyanina, Mariya"]
[Result "1/2-1/2"]
[ECO "D59"]
[WhiteElo "2147"]
[BlackElo "2006"]
[PlyCount "33"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bg5 h6 6. Bh4 0-0 7. e3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Qd2 Bb7 12. Bd3 c5 13. 0-0 Nd7 14. Bf5 Rfd8 15. Bxd7 Qxd7 16. Ne5 Qf5 17. Rac1 1/2-1/2

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.13"]
[Round "3"]
[White "Dikov, Alexander I"]
[Black "Kostin, Andrei"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1921"]
[BlackElo "2147"]
[PlyCount "88"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. e3 g6 4. Bd3 Bg7 5. 0-0 0-0 6. Nbd2 c5 7. b3 cxd4 8. exd4 Nc6 9. a3 Bg4 10. h3 Bxf3 11. Nxf3 Ne4 12. Bb2 Qb6 13. Rb1 Rad8 14. Qe2 Nxd4 15. Nxd4 Bxd4 16. Bxe4 dxe4 17. Qxe4 Bxb2 18. Rxb2 Qd4 19. Qxd4 Rxd4 20. Re1 e6 21. c3 Rd3 22. Re3 Rd1+ 23. Kh2 Rfd8 24. c4 Rc1 25. Kg3 Rd4 26. Kf3 Kf8 27. g3 Ke7 28. Rbe2 Ra1 29. a4 Rc1 30. Kg2 Kd8 31. Rf3 Ke7 32. Re5 a6 33. Rc5 f5 34. Rc7+ Rd7 35. Rxd7+ Kxd7 36. Rd3+ Ke7 37. f4 e5 38. fxe5 Ke6 39. Re3 g5 40. Kf2 Rh1 41. Kg2 Rb1 42. Kf3 Rh1 43. Kg2 Rb1 44. Kf3 Rh1 1/2-1/2

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.12"]
[Round "2"]
[White "Kostin, Andrei"]
[Black "Geranichev, Mikhail"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2147"]
[BlackElo "2030"]
[PlyCount "14"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd7 1/2-1/2

[Event "Tambov Korensky Memorial 27th"]
[Site "Tambov"]
[Date "2018.08.11"]
[Round "1"]
[White "Shvadchenko, Grigory F"]
[Black "Kostin, Andrei"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1954"]
[BlackElo "2147"]
[PlyCount "76"]
[EventDate "2018.08.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. g3 g6 4. Bg2 Bg7 5. b3 Ne4 6. Bb2 c5 7. 0-0 Nc6 8. e3 0-0 9. Nbd2 Bg4 10. Qc1 Bxf3 11. Nxf3 cxd4 12. Nxd4 Nxd4 13. exd4 Rc8 14. Bxe4 dxe4 15. Qd2 b5 16. Rac1 Qd5 17. c3 f5 18. f4 exf3 19. Qf4 e5 20. dxe5 Bxe5 21. Qxf3 Rfd8 22. Qxd5+ Rxd5 23. Rcd1 Rxd1 24. Rxd1 Bxc3 25. Bxc3 Rxc3 26. Rd8+ Kg7 27. Rd7+ Kh6 28. Rxa7 Rc2 29. Ra5 Kg5 30. h3 h5 31. Rxb5 Rxa2 32. Rb6 Rb2 33. Kf1 Rh2 34. h4+ Kg4 35. Rxg6+ Kf3 36. Ke1 Rb2 37. Rg5 Rxb3 38. Rxf5+ Kxg3 1/2-1/2

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.22"]
[Round "3"]
[White "Kostin, Andrei"]
[Black "Lomakina, Galja"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2181"]
[BlackElo "2024"]
[PlyCount "78"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 a6 4. a4 a5 5. Bc4 d6 6. Qf3 e6 7. Nge2 Nc6 8. Nb5 Nb4 9. Bb3 c6 10. Na3 d5 11. c3 dxe4 12. Qxe4 Nf6 13. Qf3 Nbd5 14. Bg5 0-0 15. Nc4 b5 16. Ne5 Bb7 17. Bxd5 Qxd5 18. Bxf6 Qxf3 19. gxf3 Bxf6 20. Nd7 Be7 21. Nxf8 Bxf8 22. 0-0 b4 23. c4 c5 24. Kg2 g5 25. dxc5 Bg7 26. Rab1 g4 27. Ng1 gxf3+ 28. Nxf3 Be4 29. b3 Rc8 30. Rbe1 Bd3 31. Rg1 Rxc5 32. Re3 Bc2 33. Rc1 Bg6 34. Rd1 Bc3 35. Rxc3 bxc3 36. Rc1 c2 37. Nd4 Rg5+ 38. Kf3 Rh5 39. Kg3 Rg5+ 1/2-1/2

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "7"]
[White "Abramov, Viktor V"]
[Black "Kostin, Andrei"]
[Result "0-1"]
[ECO "B02"]
[BlackElo "2181"]
[PlyCount "96"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Qf3 Nf6 5. h3 g6 6. Bc4 Nc6 7. Ne4 Bg7 8. c3 Ne5 9. Nxf6+ Bxf6 10. Qd5 Nxc4 11. Qxc4 0-0 12. d4 Be6 13. Qe2 b5 14. Nf3 Rb8 15. Ne5 c5 16. Nc6 Qd5 17. Nxb8 Qxg2 18. Qf1 Qe4+ 19. Be3 cxd4 20. cxd4 Rxb8 21. Kd2 Bc4 22. Qb1 Qf3 23. Qd1 Qf5 24. Qc2 Qd7 25. Qc3 e5 26. Rad1 exd4 27. Bxd4 Bxd4 28. Qg3 Bxb2+ 29. Kc2 Qf5+ 30. Kxb2 Qf6+ 31. Qc3 Qxf2+ 32. Rd2 Qb6 33. Rhd1 Re8 34. Rd6 Qc7 35. Qf6 Qe7 36. Qc3 Qe5 37. Qxe5 Rxe5 38. R1d2 Rh5 39. Rh2 Rh4 40. a3 Be6 41. Ra6 Rxh3 42. Rxh3 Bxh3 43. Rxa7 h5 44. Kc2 Bf5+ 45. Kd2 h4 46. Ke3 h3 47. a4 h2 48. axb5 h1Q 0-1

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "9"]
[White "Dikov, Alexander I"]
[Black "Kostin, Andrei"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1895"]
[BlackElo "2181"]
[PlyCount "86"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. e3 c5 4. b3 g6 5. Nbd2 Ne4 6. Bb2 Bg7 7. Bb5+ Bd7 8. Bxd7+ Nxd7 9. Nxe4 dxe4 10. Nd2 f5 11. 0-0 0-0 12. f3 exf3 13. Nxf3 e6 14. c4 g5 15. Qe2 g4 16. Nd2 Qg5 17. g3 h5 18. e4 cxd4 19. exf5 exf5 20. Qe6+ Rf7 21. Rf4 Nc5 22. Qd5 Nd3 23. Ne4 Qg6 24. Nd6 Nxf4 25. gxf4 Rd8 26. c5 Bf8 27. Re1 Rxd6 28. cxd6 Qxd6 29. Qxd4 Qxd4+ 30. Bxd4 Bd6 31. Re8+ Kh7 32. Rh8+ Kg6 33. Rg8+ Kh6 34. Rh8+ Rh7 35. Rxh7+ Kxh7 36. Be3 Kg6 37. h4 a6 38. Kf2 Be7 39. Kg3 Kf7 40. Bd2 Ke6 41. Be1 Kd5 42. Kg2 Ke4 43. Bg3 Bd6 0-1

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "5"]
[White "Kostin, Andrei"]
[Black "Kryukov, Denis V"]
[Result "0-1"]
[ECO "B45"]
[WhiteElo "2181"]
[BlackElo "2228"]
[PlyCount "72"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb3 Nf6 6. Nc3 a6 7. a3 Qc7 8. g3 Be7 9. Bg2 d6 10. Bf4 Ne5 11. Nd2 0-0 12. 0-0 b5 13. Bxe5 dxe5 14. f4 Bb7 15. Kh1 Rfd8 16. Qe2 b4 17. axb4 Bxb4 18. Nc4 Rac8 19. Nxe5 Bxc3 20. bxc3 Qxc3 21. Rfd1 h6 22. Rxd8+ Rxd8 23. Rb1 Rd2 24. Qc4 Qxc4 25. Nxc4 Rxc2 26. Nd6 Bc6 27. h3 Nd7 28. Ra1 Rd2 29. Nc8 Bb7 30. Rc1 Nf6 31. Rc4 Nh5 32. Kh2 f5 33. Ne7+ Kh7 34. Nc6 fxe4 35. Kg1 Nxg3 36. Kh2 Nf5 0-1

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "1"]
[White "Kostin, Andrei"]
[Black "Rykovsky, Vadim V"]
[Result "1-0"]
[ECO "C19"]
[WhiteElo "2181"]
[PlyCount "41"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Ne7 8. Nf3 Qc7 9. Bd3 Nbc6 10. 0-0 Bd7 11. Qe1 c4 12. Be2 a6 13. Nh4 Ng6 14. f4 Nce7 15. g4 Ba4 16. f5 Nxh4 17. Qxh4 Bd7 18. f6 Ng6 19. fxg7 Rg8 20. Qf6 Qd8 21. Qxf7# 1-0

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "8"]
[White "Kostin, Andrei"]
[Black "Ryzhkov, Evgeny"]
[Result "1-0"]
[ECO "B60"]
[WhiteElo "2181"]
[BlackElo "1822"]
[PlyCount "69"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 a6 7. Bxf6 exf6 8. Bc4 Be7 9. 0-0 0-0 10. a4 Re8 11. Nd5 Nxd4 12. Qxd4 f5 13. f3 Be6 14. Rae1 Bf8 15. exf5 Bxd5 16. Qxd5 Qc7 17. Kh1 Re5 18. Rxe5 dxe5 19. Rd1 Rc8 20. Bb3 Qe7 21. c3 Rc5 22. Qe4 b6 23. f6 gxf6 24. Bc2 f5 25. Qxf5 f6 26. Be4 Rc7 27. g4 Bh6 28. h4 Be3 29. Bc2 a5 30. Qe4 Bc5 31. Qa8+ Kg7 32. Rd8 Rd7 33. Rh8 f5 34. Qg8+ Kh6 35. Rxh7+ 1-0

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "6"]
[White "Kostin, Andrei"]
[Black "Vyaznikov, Sergey O"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2181"]
[BlackElo "2210"]
[PlyCount "142"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 e6 3. e3 Nf6 4. Nf3 c5 5. c3 Nc6 6. Nbd2 Be7 7. h3 0-0 8. Bd3 a6 9. 0-0 b5 10. Ne5 Bb7 11. Nxc6 Bxc6 12. Nf3 Nd7 13. Ne5 Nxe5 14. Bxe5 c4 15. Bc2 g6 16. Qd2 f6 17. Bh2 Bd6 18. Bxd6 Qxd6 19. f4 Rab8 20. a3 a5 21. h4 Rf7 22. h5 f5 23. hxg6 hxg6 24. Qf2 Rh7 25. Qg3 Kf7 26. Kf2 Rbh8 27. Bd1 Qe7 28. Bf3 Qf6 29. Ke2 Ke7 30. Kd2 Kd6 31. Rfb1 Ke7 32. Rg1 Kf7 33. Ke2 Qe7 34. Kf2 Kg7 35. Rge1 Kf7 36. Rg1 Qh4 37. Qxh4 Rxh4 38. g3 Rh2+ 39. Bg2 Rb8 40. Rh1 Rxh1 41. Rxh1 b4 42. axb4 axb4 43. Rc1 bxc3 44. bxc3 Rb2+ 45. Kf1 Ba4 46. Bf3 Ra2 47. g4 fxg4 48. Bxg4 Bc2 49. Ke1 Be4 50. Be2 Kf6 51. Bg4 Bf5 52. Be2 g5 53. fxg5+ Kxg5 54. Bd1 Kh4 55. Kf1 Bd3+ 56. Ke1 Kg3 57. Bh5 Bf5 58. Bd1 Bg4 59. Bc2 Bf3 60. Kf1 Ra3 61. Bg6 Ra2 62. Ke1 Re2+ 63. Kf1 Rxe3 64. Bf7 Bg2+ 65. Kg1 Bh3 66. Bh5 Bg4 67. Bxg4 Kxg4 68. Kf2 Kf4 69. Rc2 Rf3+ 70. Ke1 Ke4 71. Re2+ Kd3 0-1

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "4"]
[White "Machekhin, Evgeniy A"]
[Black "Kostin, Andrei"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "2090"]
[BlackElo "2181"]
[PlyCount "34"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. 0-0 0-0 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qd3 Bf5 11. e4 Be6 12. b3 Rb8 13. Bb2 a6 14. Rab1 Qa5 15. Nd5 Bxd5 16. exd5 Qxa2 17. Bd4 Qa5 1/2-1/2

[Event "Tambov Region-ch"]
[Site "Tambov"]
[Date "2018.02.21"]
[Round "2"]
[White "Pishchalnikov, Roman A"]
[Black "Kostin, Andrei"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "1839"]
[BlackElo "2181"]
[PlyCount "114"]
[EventDate "2018.02.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 Bg7 8. Be2 cxd4 9. cxd4 Nc6 10. Be3 0-0 11. 0-0 Bg4 12. e5 Be6 13. Ng5 Bd5 14. f4 f6 15. Nf3 f5 16. Qa4 Qa5 17. Qxa5 Nxa5 18. Rfc1 e6 19. Bd2 Nc6 20. Be3 Rac8 21. Bc4 Ne7 22. Bb3 Bxb3 23. axb3 Nd5 24. Bd2 a6 25. Kf2 Bh6 26. g3 Rfe8 27. Rxc8 Rxc8 28. Rc1 Rxc1 29. Bxc1 Bf8 30. Bd2 Be7 31. Ne1 Kf7 32. Kf3 Ke8 33. Nd3 b6 34. h3 Kd7 35. Ke2 Kc6 36. Nf2 Kb5 37. Nd3 Ba3 38. Kd1 a5 39. Ne1 a4 40. Kc2 Be7 41. bxa4+ Kxa4 42. Nd3 Ba3 43. Bc1 Be7 44. Nb2+ Ka3 45. Nc4+ Ka2 46. Nd6 h6 47. g4 fxg4 48. hxg4 h5 49. f5 exf5 50. gxh5 gxh5 51. Nxf5 b5 52. Nxe7 Nxe7 53. Bd2 h4 54. Kd3 h3 55. Bf4 b4 56. Ke2 b3 57. Bc1 h2 0-1

