[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.10"]
[Round "9"]
[White "Goryachkin, Alexey"]
[Black "Mamchenko, Sergei"]
[Result "1-0"]
[ECO "E09"]
[WhiteElo "1889"]
[BlackElo "1927"]
[PlyCount "59"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 0-0 6. 0-0 c6 7. Nbd2 b6 8. Qc2 Nbd7 9. Rd1 Ba6 10. b3 Rc8 11. e4 Ne8 12. Bb2 Nc7 13. Rac1 Re8 14. Qb1 Bf8 15. Nf1 Qe7 16. Ne3 Nf6 17. exd5 cxd5 18. Ne5 Qd6 19. c5 bxc5 20. dxc5 Qe7 21. a4 Nd7 22. Nc6 Qg5 23. b4 f6 24. b5 Bxc5 25. bxa6 Bxe3 26. fxe3 Qxe3+ 27. Kh1 Qb6 28. a5 Qxa6 29. Ba3 Kf7 30. Bf1 1-0

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.09"]
[Round "8"]
[White "Mamchenko, Sergei"]
[Black "Chibukhchyan, Erik"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1927"]
[BlackElo "1506"]
[PlyCount "65"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 c6 6. Bg5 Be7 7. e3 Bf5 8. Bd3 Bg6 9. Rb1 b5 10. Ne5 Nfd7 11. Bxe7 Qxe7 12. Nf3 Nb6 13. 0-0 0-0 14. Bxg6 fxg6 15. Qd3 N8d7 16. Ne2 a6 17. b3 g5 18. Rbc1 Rac8 19. Ng3 g4 20. Nd2 Kh8 21. Rc2 Qg5 22. Rfc1 Qf6 23. Qe2 g6 24. f3 gxf3 25. Nxf3 Rfe8 26. Qd3 Qe6 27. Nf1 Qe4 28. Qxe4 dxe4 29. Ng5 Re7 30. Rxc6 Rf8 31. Re6 Rxe6 32. Nxe6 Rf6 33. Ng5 1-0

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.07"]
[Round "6"]
[White "Orekhov, Nikolai"]
[Black "Mamchenko, Sergei"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2129"]
[BlackElo "1927"]
[PlyCount "87"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 c6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Nxg6 hxg6 8. Be2 Nbd7 9. 0-0 dxc4 10. Bxc4 Nd5 11. h3 Be7 12. e4 Nxc3 13. bxc3 0-0 14. Be3 Qc7 15. Rc1 c5 16. Qb3 Rac8 17. f4 Nf6 18. e5 Nd7 19. Be2 Nb6 20. Bf3 Rfd8 21. Be4 cxd4 22. cxd4 Qd7 23. g4 Nd5 24. Bxd5 Qxd5 25. Qxd5 exd5 26. f5 gxf5 27. gxf5 Ba3 28. Rb1 Rc3 29. Rf3 b6 30. Kg2 Rc2+ 31. Rf2 Rdc8 32. Rb5 R2c3 33. Re2 Rd8 34. Bg5 f6 35. exf6 gxf6 36. Bxf6 Rf8 37. Re6 Kf7 38. Rxd5 Rg8+ 39. Kf2 Rc2+ 40. Kf3 Rc3+ 41. Ke4 Rgg3 42. Rd7+ Kf8 43. Rxa7 Rxh3 44. Bg7+ 1-0

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.06"]
[Round "5"]
[White "Mamchenko, Sergei"]
[Black "Kopjonkin, Kirill"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1927"]
[BlackElo "2025"]
[PlyCount "83"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 0-0 5. Be2 d6 6. h3 Nbd7 7. 0-0 Qe8 8. c3 e5 9. dxe5 dxe5 10. Bh2 Qe7 11. Nbd2 Rd8 12. Qc2 Ne8 13. Rfd1 Nd6 14. Nc4 Nxc4 15. Bxc4 Nb6 16. Rxd8+ Qxd8 17. Bb3 Qe7 18. Qe4 c5 19. g4 Kf8 20. Nd2 f5 21. gxf5 Bxf5 22. Qf3 e4 23. Qf4 Rd8 24. Nf1 c4 25. Bd1 Nd5 26. Qg3 h5 27. Be2 h4 28. Qg2 Qe6 29. Bxc4 Bxh3 30. Qg5 Bf6 31. Qxg6 Rd7 32. Qh5 Rg7+ 33. Ng3 hxg3 34. Bxg3 Rg5 35. Qh6+ Ke7 36. Qh7+ Rg7 37. Qh5 Rg5 38. Qh7+ Rg7 39. Qh5 Bf5 40. Bxd5 Qxd5 41. Rd1 Qe6 42. Rd6 0-1

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.05"]
[Round "4"]
[White "Malyshev, Grigory"]
[Black "Mamchenko, Sergei"]
[Result "1-0"]
[ECO "E45"]
[WhiteElo "2019"]
[BlackElo "1927"]
[PlyCount "87"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 0-0 9. Be2 Nbd7 10. 0-0 c5 11. cxd5 Bxe2 12. Nxe2 Nxd5 13. Bb2 Qg5 14. dxc5 Nxc5 15. b4 Ne4 16. Qd4 Nef6 17. Rfd1 Rfe8 18. Qe5 Qxe5 19. Bxe5 Rac8 20. Rac1 Red8 21. Bd4 Re8 22. Kf1 Kf8 23. Ke1 Rxc1 24. Rxc1 Ke7 25. Bxf6+ Kxf6 26. e4 Ne7 27. Rc7 Nc8 28. f4 e5 29. f5 Nd6 30. Nc3 Rc8 31. h4 g6 32. Nd5+ Kg7 33. f6+ Kh6 34. Rxa7 Nxe4 35. Rxf7 g5 36. hxg5+ Nxg5 37. Re7 Ra8 38. f7 Rf8 39. Nxb6 Nxf7 40. Nd7 Ra8 41. Rxf7 Rxa3 42. b5 Kg6 43. Rf6+ Kg7 44. Rc6 1-0

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.04"]
[Round "3"]
[White "Mamchenko, Sergei"]
[Black "Khramov, Andrey"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "1927"]
[BlackElo "1978"]
[PlyCount "118"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. cxd5 exd5 6. Bf4 Bf5 7. e3 Bd6 8. Bg3 0-0 9. Bd3 Bxd3 10. Qxd3 Re8 11. Nd2 Bxg3 12. hxg3 Nbd7 13. b4 a6 14. Nb3 h6 15. a4 Ne4 16. Nxe4 dxe4 17. Qc2 Qe7 18. Nc5 Nf6 19. Qc4 Nd5 20. 0-0 Red8 21. b5 cxb5 22. axb5 a5 23. b6 Nxb6 24. Qb5 Nc8 25. Qxb7 Qxb7 26. Nxb7 Rd5 27. Nc5 f5 28. Rfb1 Rd6 29. Rb5 Ne7 30. Raxa5 Rxa5 31. Rxa5 Rb6 32. Ra2 Rb1+ 33. Kh2 Nd5 34. g4 g6 35. gxf5 gxf5 36. Kg3 Kf7 37. Ra7+ Kf6 38. Rd7 Ne7 39. Rd6+ Kg7 40. Ne6+ Kf7 41. Nf4 Ng8 42. Rd7+ Kf6 43. Rd8 Kf7 44. Nd5 Rb2 45. f3 Re2 46. Rd7+ Ke6 47. Nf4+ Kxd7 48. Nxe2 exf3 49. gxf3 Nf6 50. Kf4 Nd5+ 51. Kxf5 Nxe3+ 52. Kg6 Ke6 53. Kxh6 Kf5 54. Kh5 Ng2 55. Ng1 Ne1 56. Kh6 Kf4 57. Kg6 Nxf3 58. d5 Ke5 59. Nxf3+ Kxd5 1/2-1/2

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.03"]
[Round "2"]
[White "Mamchenko, Sergei"]
[Black "Lelet, Mark"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "1927"]
[PlyCount "134"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. Bf4 Nf6 4. e3 Bg4 5. c4 e6 6. Nbd2 Bb4 7. a3 Bxd2+ 8. Qxd2 Ne4 9. Qb4 b6 10. Bxb8 Rxb8 11. Ne5 Bh5 12. Nxc6 Qf6 13. f3 Rc8 14. Nxa7 Rc7 15. Nb5 Rd7 16. fxe4 Qh4+ 17. Kd2 Qf2+ 18. Kc1 Qxe3+ 19. Kb1 Qxe4+ 20. Ka2 Qf4 21. cxd5 Rxd5 22. Bc4 Rd7 23. g3 Qb8 24. Rhe1 Qd8 25. d5 Re7 26. dxe6 0-0 27. exf7+ Bxf7 28. Bxf7+ Rexf7 29. Rad1 Qa8 30. Re7 Rxe7 31. Qxe7 Qc6 32. Nd6 Qf3 33. Qe6+ Kh8 34. Qd5 Qf2 35. Rd2 Qf1 36. Nf7+ Rxf7 37. Qxf7 Qxf7+ 38. b3 h6 39. a4 Qe7 40. Kb2 Kh7 41. Rc2 Qb4 42. h4 Qd4+ 43. Rc3 Qd2+ 44. Rc2 Qe3 45. Rc3 Qe5 46. b4 h5 47. Kb3 Qd5+ 48. Ka3 Kg6 49. Rb3 Qe5 50. Ka2 Kf5 51. b5 Kg4 52. Ka3 Qd6+ 53. Ka2 Qd2+ 54. Ka3 Qc1+ 55. Ka2 Kf5 56. Rb2 Ke5 57. a5 Qc4+ 58. Kb1 Qc3 59. Ka2 Qxg3 60. axb6 Qxh4 61. Ka3 Qe7+ 62. Ka4 Qc5 63. Re2+ Kf5 64. Rh2 g6 65. b7 Qa7+ 66. Kb4 Qxb7 67. Rc2 h4 0-1

[Event "RUS-chT U20"]
[Site "Kaliningrad"]
[Date "2013.08.02"]
[Round "1"]
[White "Guzenko, Artem"]
[Black "Mamchenko, Sergei"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2241"]
[BlackElo "1927"]
[PlyCount "59"]
[EventDate "2013.08.02"]
[EventType "team-swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Bd3 cxd4 7. Nxd4 Nc6 8. Nxc6 bxc6 9. 0-0 Ne7 10. Nd2 Ng6 11. Nf3 Be7 12. Qe2 0-0 13. h4 Rfe8 14. h5 Nf8 15. h6 g6 16. Bg5 Qd8 17. Qe3 c5 18. b4 cxb4 19. cxb4 Rb8 20. a3 Bb5 21. Bxe7 Qxe7 22. Bxb5 Rxb5 23. Rfc1 Rb7 24. Nd4 a6 25. Rc6 Ra8 26. Rac1 Qd8 27. Nb3 Nd7 28. g3 Rb5 29. Rd6 Qe8 30. Rc7 1-0

[Event "Minsk op"]
[Site "Minsk"]
[Date "2012.07.10"]
[Round "1"]
[White "Khalifman, Alexander"]
[Black "Mamchenko, Sergei"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2642"]
[BlackElo "2014"]
[PlyCount "62"]
[EventDate "2012.07.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BLR"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 Bf5 5. cxd5 Nxd5 6. d4 e6 7. Bc4 Nd7 8. 0-0 N7f6 9. Nh4 Bg6 10. Nxg6 hxg6 11. g3 Nxc3 12. bxc3 Qa5 13. Qe2 Ne4 14. Bb2 Nxc3 15. Bxc3 Qxc3 16. Rab1 Rb8 17. Ba6 Ba3 18. Bxb7 0-0 19. Qa6 Bd6 20. Rfc1 Qd2 21. Rxc6 Bb4 22. Qxa7 Ba5 23. Qa6 Rfe8 24. Rc5 Bb4 25. Rb5 Be7 26. R5b2 Qc3 27. a4 Bf6 28. Rb3 Qd2 29. Qd3 Qa5 30. Qb5 Qd2 31. a5 Ra8 1-0

