[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.29"]
[Round "9"]
[White "Scheglov, Dmitry"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "2155"]
[BlackElo "2336"]
[PlyCount "110"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. c3 cxd4 5. cxd4 dxe4 6. Nxe4 Nf6 7. Nc3 Be7 8. Nf3 0-0 9. Bd3 Nc6 10. 0-0 b6 11. a3 Bb7 12. Re1 Rc8 13. Bb1 Rc7 14. Be3 Nd5 15. Qd3 g6 16. Ne4 Nxe3 17. fxe3 Rd7 18. Ba2 Re8 19. Rf1 Bf8 20. Rad1 Bg7 21. h4 Ne5 22. Nxe5 Bxe5 23. Ng5 Bf6 24. Ne4 Bxh4 25. Bc4 Qa8 26. Rf4 Bd8 27. Rdf1 Bd5 28. Bb5 Bc6 29. Bc4 f5 30. Qb3 Kf7 31. Ng3 Bd5 32. e4 Bxc4 33. Qxc4 Kg7 34. d5 e5 35. Qc3 Kg8 36. Nxf5 gxf5 37. Rxf5 Qb8 38. Qf3 Qd6 39. Rc1 Rc7 40. Rxc7 Qxc7 41. Qh5 Rf8 42. Rxf8+ Kxf8 43. Qf5+ Kg7 44. Qg4+ Kh8 45. Qe6 Qe7 46. Qf5 Qf6 47. Qd7 Be7 48. b4 a5 49. Qb5 axb4 50. axb4 Qd6 51. Qe8+ Kg7 52. b5 Qf6 53. g3 Bc5+ 54. Kg2 Kh6 55. Qd7 Kg5 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.28"]
[Round "8"]
[White "Biriukov, Oleg V"]
[Black "Manush, Shah"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2336"]
[BlackElo "2109"]
[PlyCount "183"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 b6 7. Bd3 Bb7 8. 0-0 Bd6 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Qc7 12. Re1 h6 13. Be3 Nf6 14. c5 Be7 15. Bd3 Nd5 16. Bd2 bxc5 17. dxc5 Bf6 18. Rab1 g5 19. Re4 Kf8 20. Rbe1 Re8 21. Ne5 Bc8 22. Nc4 Ba6 23. Nd6 Bxd3 24. Qxd3 Rd8 25. Qf3 Kg7 26. b3 Rxd6 27. cxd6 Qxd6 28. h4 gxh4 29. Rg4+ Kf8 30. Qd3 c5 31. b4 Be7 32. bxc5 Qxc5 33. Rc1 Qb6 34. Rc8+ Bd8 35. Qa3+ Ke8 36. Ba5 Qb1+ 37. Kh2 Kd7 38. Rxd8+ Rxd8 39. Bxd8 Qb8+ 40. Kh3 Qxd8 41. Qxa7+ Kd6 42. Qxf7 Qb6 43. Re4 Nc7 44. Qf4+ Kd7 45. Rb4 Qa6 46. Rd4+ Nd5 47. Rxd5+ exd5 48. Qf7+ Kc8 49. Qxd5 Qf6 50. Qc4+ Kb8 51. Qxh4 Qe6+ 52. Kg3 Qxa2 53. Qxh6 Qd5 54. Qf4+ Ka7 55. Qe3+ Kb8 56. Kh2 Qf5 57. Qf3 Qh7+ 58. Qh3 Qe4 59. f3 Qe3 60. Qh4 Qd2 61. f4 Qd3 62. Qh5 Qd2 63. Qe5+ Ka7 64. Qe7+ Ka8 65. Qf8+ Ka7 66. Qf7+ Ka8 67. Kh3 Qe3+ 68. g3 Qe2 69. f5 Qf1+ 70. Kh4 Qh1+ 71. Kg5 Qc1+ 72. Kg6 Qc6+ 73. Qe6 Qf3 74. Qc8+ Ka7 75. Qc7+ Ka8 76. Qf4 Qd3 77. g4 Qd5 78. Qa4+ Kb7 79. Qb4+ Ka6 80. Qf8 Qe4 81. g5 Ka5 82. Qd8+ Ka6 83. Qd6+ Ka7 84. Qe6 Qd3 85. Kf7 Qh3 86. g6 Qh5 87. Kg8 Ka8 88. g7 Qh3 89. Kf8 Qa3+ 90. Qe7 Qf3 91. g8Q Qxf5+ 92. Kg7+ 1-0

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.27"]
[Round "7"]
[White "Petrova, Irina"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2174"]
[BlackElo "2336"]
[PlyCount "75"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 g6 9. f3 Nxd4 10. Qxd4 Bg7 11. Be3 0-0 12. Qd3 a6 13. 0-0 Qc6 14. Rac1 Rfc8 15. b3 Rab8 16. Nd5 Nxd5 17. cxd5 Qd7 18. Bd4 Bh6 19. Be3 Qb5 20. Qd4 Bxe3+ 21. Qxe3 Qa5 22. Rxc8+ Rxc8 23. Rc1 Rxc1+ 24. Qxc1 Qxa2 25. Qc8+ Kg7 26. Qxb7 Qe2 27. h3 Kf6 28. Qa7 Qd3 29. Kh2 h5 30. h4 e6 31. Qb8 exd5 32. Qxd6+ Kg7 33. exd5 Qxb3 34. Qe5+ Kg8 35. d6 Qb4 36. Kh3 Qd2 37. Qe8+ Kg7 38. d7 1-0

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.26"]
[Round "6"]
[White "Biriukov, Oleg V"]
[Black "Zemnitskiy, Alexander"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2336"]
[BlackElo "2112"]
[PlyCount "89"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. 0-0 Be7 8. Nc3 0-0 9. dxc5 Bxc5 10. a3 Bg4 11. b4 Be7 12. Bb2 a6 13. Rc1 Rc8 14. Rc2 Be6 15. Rd2 Qc7 16. Qb1 Rfd8 17. Rfd1 Rd7 18. Ng5 h6 19. Nxe6 fxe6 20. Bh3 Rd6 21. e4 d4 22. Ne2 e5 23. Bxc8 Qxc8 24. Kg2 h5 25. Qd3 Qg4 26. f3 Qe6 27. Nc1 Kh7 28. Qb3 Qd7 29. Nd3 b6 30. Qa4 h4 31. Qxa6 h3+ 32. Kg1 Nxe4 33. fxe4 Bg5 34. Nf2 Be3 35. Qe2 Qf7 36. Kh1 Rf6 37. Nxh3 Qg6 38. Qg2 Qg4 39. Ng1 Nd8 40. Qh3+ Qxh3 41. Nxh3 Bxd2 42. Rxd2 Nf7 43. Rf2 Nd6 44. Rxf6 gxf6 45. Nf2 1-0

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.25"]
[Round "5"]
[White "Shmoilov, Dmitry"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "1962"]
[BlackElo "2336"]
[PlyCount "62"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nf3 Bg7 8. Bg2 0-0 9. 0-0 Re8 10. Bf4 h6 11. h3 a6 12. a4 Bf5 13. Nd2 g5 14. e4 Bxe4 15. Bxg5 hxg5 16. Ndxe4 Nxe4 17. Nxe4 f5 18. Nd2 Nd7 19. Nc4 Ne5 20. Ne3 Qd7 21. Qc2 Rf8 22. f4 gxf4 23. gxf4 Ng6 24. Rf3 Kh8 25. Kh1 Bd4 26. Nc4 Rae8 27. Bf1 Nh4 28. Rg3 Rg8 29. Qd3 Qe7 30. Rxg8+ Rxg8 31. Be2 Qg7 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.24"]
[Round "4"]
[White "Biriukov, Oleg V"]
[Black "Myshkovskiy, Sviatoslav"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "2336"]
[BlackElo "2062"]
[PlyCount "72"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Bd6 6. Bd3 Nbd7 7. e4 dxe4 8. Nxe4 Nxe4 9. Bxe4 Nf6 10. Bc2 Qa5+ 11. Bd2 Bb4 12. a3 Bxd2+ 13. Qxd2 Qxd2+ 14. Kxd2 0-0 15. Ne5 Rd8 16. Ke3 Bd7 17. g4 Be8 18. g5 Nd7 19. Nd3 f6 20. gxf6 gxf6 21. Rhg1+ Kh8 22. Nf4 Bf7 23. b3 e5 24. dxe5 Nxe5 25. Rg3 Rg8 26. Rag1 Rae8 27. Kd2 Nf3+ 28. Rxf3 Rxg1 29. Nh3 Rg2 30. Rxf6 Bg8 31. Rf4 Rxh2 32. Ng5 h6 33. Ne4 Bh7 34. Nf6 Rd8+ 35. Kc3 Bxc2 36. Kxc2 Rf8 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.23"]
[Round "3"]
[White "Makoveev, Ilya"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2041"]
[BlackElo "2336"]
[PlyCount "120"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 0-0 9. a4 Nc6 10. 0-0 Nb4 11. b3 Be6 12. Ba3 a5 13. Nb5 d5 14. c3 Nc6 15. Bxe7 Nxe7 16. exd5 Bxd5 17. c4 Bxg2 18. Kxg2 Qb6 19. Nec3 Rad8 20. Qe2 Nc6 21. Rad1 Qc5 22. f3 h6 23. Rxd8 Rxd8 24. Rd1 Rxd1 25. Nxd1 Nd4 26. Qd3 b6 27. Nf2 Ne6 28. Qd2 Qc6 29. Qe3 Nc5 30. h3 h5 31. Nd3 e4 32. Ne5 exf3+ 33. Nxf3 Nfe4 34. Nbd4 Qg6 35. Nh4 Qf6 36. Nhf3 Qg6 37. Nh4 Qd6 38. Nhf5 Qe5 39. Qf4 Qxf4 40. gxf4 Kf8 41. Ne3 Nd2 42. Nd5 Ndxb3 43. Nxb3 Nxb3 44. Kf2 Nc5 45. Nxb6 Ke7 46. Nd5+ Kd6 47. Nc3 Ne6 48. Ne4+ Kc6 49. Ke3 f5 50. Nd2 Kc5 51. Nb3+ Kb4 52. Nd4 Nc5 53. Nc6+ Kxa4 54. Kd4 Nd7 55. h4 Nf8 56. Ke5 Ng6+ 57. Kxf5 Nxh4+ 58. Kg5 Ng2 59. Kxh5 Nxf4+ 60. Kg5 Ne6+ 1/2-1/2

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.22"]
[Round "2"]
[White "Biriukov, Oleg V"]
[Black "Gordievsky, Dmitry"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2336"]
[BlackElo "2605"]
[PlyCount "98"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 g6 3. e4 Nf6 4. Bd3 Bg7 5. 0-0 0-0 6. c3 Nbd7 7. Re1 e5 8. Bg5 h6 9. Bh4 Qe8 10. Na3 a6 11. Nc4 b6 12. a4 Bb7 13. b4 exd4 14. Nxd4 Qb8 15. Qc2 Re8 16. Bg3 Nh5 17. Rab1 Nxg3 18. hxg3 d5 19. exd5 Bxd5 20. Ne3 Bb7 21. Bc4 Be4 22. Bd3 Qb7 23. Bxe4 Rxe4 24. Rbd1 c5 25. Nb3 Rae8 26. bxc5 Nxc5 27. Nxc5 bxc5 28. Rb1 Qc6 29. a5 Qa4 30. Qxa4 Rxa4 31. Nd5 Rxe1+ 32. Rxe1 Rxa5 33. Re8+ Kh7 34. Re7 Kg8 35. Re8+ Bf8 36. Nf6+ Kg7 37. Nd7 Bd6 38. Rc8 h5 39. Rc6 Be7 40. f4 Ra1+ 41. Kh2 a5 42. Nxc5 a4 43. Ne4 a3 44. Ra6 Re1 45. Ng5 Bc5 46. Nf3 Rc1 47. Nd4 Rxc3 48. Ra4 a2 49. Nf3 Ba3 0-1

[Event "Chigorin Memorial 25th"]
[Site "St Petersburg"]
[Date "2017.10.21"]
[Round "1"]
[White "Rubtsov, Aleksandr"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1895"]
[BlackElo "2336"]
[PlyCount "58"]
[EventDate "2017.10.21"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 181 Extra"]
[Source "ChessBase"]
[SourceDate "2017.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2017.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. g4 h6 10. 0-0-0 Bb7 11. h4 b4 12. Nce2 d5 13. exd5 Nxd5 14. Bg2 Nxe3 15. Qxe3 Qb6 16. Rhe1 Bc5 17. Ng3 e5 18. Qd3 0-0-0 19. Ndf5 Nf6 20. Qc4 Kb8 21. Rxd8+ Rxd8 22. g5 hxg5 23. hxg5 g6 24. gxf6 gxf5 25. Nxf5 Bf2 26. Rxe5 Qxf6 27. Re7 Qg5+ 28. f4 Qxe7 29. Nxe7 Be3+ 0-1

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.23"]
[Round "9"]
[White "Iljiushenok, Ilia"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2505"]
[BlackElo "2327"]
[PlyCount "81"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[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. h3 c6 11. Qf3 Bxc3 12. bxc3 Ne4 13. c4 Qf6 14. cxd5 cxd5 15. Qxf6 Nxf6 16. Rb1 a5 17. Ba3 Rd8 18. Rb6 Be6 19. Be7 Rdc8 20. Bxf6 gxf6 21. a3 Kg7 22. f4 d4 23. f5 Bc4 24. Rf4 Bxd3 25. cxd3 Rc3 26. Rg4+ Kf8 27. Rxd4 Rxa3 28. Rxf6 Kg7 29. Rc6 Ra1+ 30. Kh2 a4 31. Rg4+ Kh8 32. Rh6 f6 33. Rgh4 Ra7 34. Rxf6 a3 35. Rhh6 Rd1 36. Ra6 Rxa6 37. Rxa6 Rxd3 38. g4 h5 39. g5 Rd5 40. Kg3 Rxf5 41. Kh4 1-0

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.22"]
[Round "8"]
[White "Enkhnar, Enkhbaatar"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2451"]
[BlackElo "2327"]
[PlyCount "80"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Bb4+ 5. Nc3 0-0 6. Bg2 dxc4 7. 0-0 Nc6 8. a3 Be7 9. Rb1 Rb8 10. Qa4 a6 11. Qxc4 b5 12. Qd3 b4 13. axb4 Nxb4 14. Qc4 Bb7 15. Bf4 Nfd5 16. Nxd5 Bxd5 17. Qxc7 Qxc7 18. Bxc7 Rbc8 19. Bf4 Bc4 20. Ne5 Bxe2 21. Rfc1 Bb5 22. Be3 Rfd8 23. Bf1 Bxf1 24. Kxf1 f6 25. Nf3 Kf7 26. Ke2 Na2 27. Rxc8 Rxc8 28. Ne1 Nb4 29. Nd3 Nd5 30. Bd2 Rc6 31. Rc1 Rxc1 32. Bxc1 h5 33. h3 Ke8 34. Nf4 Nxf4+ 35. Bxf4 Kd7 36. Kd3 Kc6 37. Kc4 g5 38. Bd2 g4 39. hxg4 hxg4 40. b3 Bd6 1/2-1/2

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.21"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Kharchenko, Boris"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2327"]
[BlackElo "2464"]
[PlyCount "191"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. Nc3 Nc6 6. e3 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 e6 10. Nf3 Rc8 11. Bd3 Be7 12. h3 0-0 13. 0-0 b5 14. a3 Nc4 15. Ne5 Be8 16. Rfc1 h6 17. Qe2 Nd7 18. Nxd7 Bxd7 19. e4 Bg5 20. Bxg5 Qxg5 21. a4 b4 22. Na2 Na5 23. Qd1 e5 24. Rxc8 Rxc8 25. Nxb4 Bxh3 26. g3 Bg4 27. Be2 Bxe2 28. Qxe2 Nb3 29. Qa6 Qg4 30. Nxd5 Kh7 31. Ne3 Qh3 32. Qf1 Qxf1+ 33. Rxf1 exd4 34. Nd5 Rc2 35. Rd1 Rxb2 36. Rd3 Nc1 37. Rd1 Nb3 38. Rd3 a5 39. Kg2 f6 40. Ne7 Nc5 41. Rxd4 Rb4 42. Nc6 Rxd4 43. Nxd4 Nxa4 44. Nb3 Nc3 45. Nxa5 Nxe4 46. Nc4 h5 47. f3 Nc5 48. Kh3 Kh6 49. Ne3 g5 50. g4 Nd3 51. gxh5 Kxh5 52. Kg3 Kg6 53. Nd5 Kf5 54. Ne3+ Ke5 55. Ng4+ Ke6 56. Ne3 f5 57. Nc4 f4+ 58. Kg4 Kf6 59. Kh3 Ne1 60. Nd2 Kf5 61. Kh2 Kg6 62. Kg1 Nc2 63. Kg2 Ne3+ 64. Kf2 Kf5 65. Nb3 Ke5 66. Nc5 Nd1+ 67. Ke2 Nc3+ 68. Kd3 Nb5 69. Ne4 Kf5 70. Nf2 Nd6 71. Ke2 Nc4 72. Kd3 Ne5+ 73. Ke2 Ng6 74. Kd3 Nh4 75. Ke2 Ke5 76. Nh3 Kf6 77. Nf2 Kg6 78. Ne4 Nf5 79. Kf2 Kh5 80. Nf6+ Kg6 81. Ne4 Nd4 82. Nd6 Kf6 83. Ne4+ Kf5 84. Nd6+ Ke5 85. Nf7+ Kf6 86. Nd6 Ne6 87. Nc4 Nd8 88. Ke2 Nf7 89. Kf2 Ke6 90. Ke2 Kd5 91. Nd2 Kd4 92. Nb3+ Kc3 93. Nc5 Kc4 94. Ne4 Kd4 95. Nf6 Ne5 96. Nh7 1/2-1/2

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.20"]
[Round "6"]
[White "Artemiev, Vladislav"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2663"]
[BlackElo "2327"]
[PlyCount "65"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nb4 6. Bc4 Nd3+ 7. Ke2 Nf4+ 8. Kf1 Ne6 9. d3 Nc6 10. h4 Ned4 11. Nb5 a6 12. Nbxd4 cxd4 13. Bd2 e6 14. Rc1 Be7 15. Rh3 f6 16. Rg3 0-0 17. h5 Kh8 18. Nh4 Rf7 19. f4 Bd6 20. Qg4 Qe8 21. Kg1 Rc7 22. Rf1 b5 23. Bb3 Raa7 24. Rh3 Rab7 25. Ng6+ Kg8 26. f5 Ne5 27. Nxe5 Bxe5 28. h6 Kh8 29. fxe6 Rc6 30. Qh5 Qxh5 31. Rxh5 Bxe6 32. Rxe5 Bxb3 33. axb3 1-0

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.19"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Abergel, Thal"]
[Result "1-0"]
[ECO "E38"]
[WhiteElo "2327"]
[BlackElo "2475"]
[PlyCount "133"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. b4 Nce4 9. Qb2 Nd6 10. c5 Nc4 11. Qc2 d5 12. e4 b5 13. Bxc4 dxc4 14. Bb2 Bb7 15. f3 a5 16. Ne2 axb4 17. axb4 Rxa1+ 18. Bxa1 0-0 19. 0-0 Bc6 20. Nd4 Bd7 21. Ne2 Qe7 22. Rd1 Ra8 23. Bxf6 gxf6 24. e5 Be8 25. Qc3 fxe5 26. Qxe5 f6 27. Qe3 e5 28. Nc3 Rd8 29. Rd2 Bc6 30. Kf2 Kg7 31. Ke1 Rd7 32. Ne4 Ra7 33. Rd6 Ra1+ 34. Kf2 Ra2+ 35. Kg3 Bxe4 36. Qxe4 h5 37. Qf5 Ra7 38. Qxh5 c3 39. Qg4+ Kf8 40. Qg6 Qxd6 41. cxd6 Rg7 42. Qxg7+ Kxg7 43. d7 c2 44. d8Q c1Q 45. Qd7+ Kg6 46. Qg4+ Kf7 47. h4 Qe1+ 48. Kh2 Qd2 49. h5 Kf8 50. Kh3 Qc1 51. Kh2 Qd2 52. Qe4 Qg5 53. Qg4 Qd2 54. Qg6 Qxb4 55. Qxf6+ Kg8 56. Qxe5 Qh4+ 57. Kg1 b4 58. g4 Qd8 59. h6 Qd1+ 60. Kg2 Qd2+ 61. Kg3 Qc3 62. Qe6+ Kh7 63. g5 b3 64. Qe4+ Kg8 65. g6 Kf8 66. Qe6 Qc7+ 67. Kg4 1-0

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.18"]
[Round "4"]
[White "Biriukov, Oleg V"]
[Black "Schetchikov, Vladimir Mikhailo"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2327"]
[BlackElo "1967"]
[PlyCount "51"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 b6 4. e4 Bb7 5. Bd3 Bb4 6. Qc2 c5 7. d5 e5 8. Nge2 d6 9. 0-0 Bxc3 10. Qxc3 Nbd7 11. Ng3 g6 12. f4 Qe7 13. fxe5 Qxe5 14. Bf4 Qxc3 15. bxc3 Ke7 16. Bg5 h6 17. Bh4 Bc8 18. Rad1 g5 19. Nf5+ Kf8 20. Bg3 Ne8 21. Nxd6 f6 22. Nxc8 Rxc8 23. e5 Kg7 24. e6 Nf8 25. Bf5 Ng6 26. d6 1-0

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.17"]
[Round "3"]
[White "Volkov, Roman"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B91"]
[WhiteElo "2067"]
[BlackElo "2327"]
[PlyCount "106"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 b5 9. Nd5 Nxd5 10. Qxd5 Ra7 11. 0-0 Be6 12. Qd1 Nd7 13. Be3 Rb7 14. Nc3 h6 15. f4 Nf6 16. h3 0-0 17. Nd5 Bxd5 18. exd5 exf4 19. Bxf4 Nd7 20. Kh2 Rb6 21. Be3 Rb8 22. c3 Bg5 23. Bd4 Bf6 24. Rxf6 Nxf6 25. Qd2 Nd7 26. Rf1 Re8 27. Qf4 Qe7 28. Be4 Ne5 29. Qf5 g6 30. Qf2 f5 31. Bc2 Rf8 32. Kh1 Rbe8 33. Qf4 Qg5 34. Qf2 Nc4 35. h4 Qd2 36. Qxd2 Nxd2 37. Rf2 Re1+ 38. Kh2 Nf1+ 39. Kg2 Ne3+ 40. Bxe3 Rxe3 41. h5 gxh5 42. Bxf5 Kg7 43. a3 Re1 44. Bd3 Rd1 45. Be2 Rxf2+ 46. Kxf2 Rd2 47. b3 Rb2 48. a4 Rxb3 49. axb5 axb5 50. c4 b4 51. Bxh5 Rc3 52. Bg4 Kf6 53. Ke2 Rxc4 0-1

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.16"]
[Round "2"]
[White "Biriukov, Oleg V"]
[Black "Khismatullin, Denis Rimovich"]
[Result "0-1"]
[ECO "E38"]
[WhiteElo "2327"]
[BlackElo "2617"]
[PlyCount "72"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Bxc5 6. Bf4 e5 7. Bg3 d6 8. e3 Be6 9. Nf3 h6 10. Be2 Nbd7 11. 0-0 Rc8 12. Rfd1 0-0 13. a3 Qe7 14. b4 Bb6 15. Qb3 a6 16. Nd2 Ba7 17. Nd5 Bxd5 18. cxd5 Nb6 19. e4 Rc7 20. Rdc1 Rfc8 21. Rxc7 Qxc7 22. Kf1 Nbd7 23. Bd3 Nh5 24. Ke2 Ndf6 25. Nc4 Qd7 26. Ne3 Bd4 27. Ra2 Rc3 28. Qb1 Nf4+ 29. Bxf4 exf4 30. Nf5 Be5 31. h3 g6 32. Nxh6+ Kg7 33. Ng4 Nxg4 34. hxg4 Qxg4+ 35. Kd2 Qxg2 36. Qf1 f3 0-1

[Event "Chigorin Memorial 24th"]
[Site "St Petersburg"]
[Date "2016.10.15"]
[Round "1"]
[White "Shapiyanov, Adam"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1857"]
[BlackElo "2327"]
[PlyCount "148"]
[EventDate "2016.10.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 175 Extra"]
[Source "ChessBase"]
[SourceDate "2016.12.12"]
[SourceVersion "1"]
[SourceVersionDate "2016.12.12"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. g4 h6 10. 0-0-0 Bb7 11. h4 b4 12. Nce2 d5 13. exd5 Nxd5 14. Bf2 Ne5 15. Ng3 Rc8 16. Kb1 Bd6 17. Ne4 Bb8 18. g5 hxg5 19. Nxg5 Qf6 20. Rg1 0-0 21. Ne4 Qf4 22. Qxf4 Nxf4 23. Bg3 Nxf3 24. Nxf3 Bxe4 25. Nd4 e5 26. Re1 Bh7 27. Bxf4 exd4 28. Bxb8 Bxc2+ 29. Kc1 Bg6+ 30. Kd1 Rxb8 31. Bxa6 Rb6 32. Bc4 Rf6 33. Re5 Rf5 34. Re7 Bh5+ 35. Ke1 Rf4 36. Rh1 Rc8 37. b3 Rc5 38. Rf1 Rxf1+ 39. Kxf1 Rf5+ 40. Kg2 Rf4 41. Kg3 Rf3+ 42. Kg2 Rc3 43. Rd7 Rc2+ 44. Kg3 Rxa2 45. Rxd4 Bg6 46. Bd5 Ra5 47. Bc4 Kh7 48. Rd7 f5 49. Rb7 Re5 50. Rxb4 Re3+ 51. Kf4 Rh3 52. Ke5 Kh6 53. Be6 Re3+ 54. Kd6 Re4 55. Rb5 Rf4 56. Ke5 Rxh4 57. Bd5 Rh2 58. Rb7 Re2+ 59. Kf4 Rf2+ 60. Kg3 Rd2 61. Bc4 Bh5 62. b4 Be2 63. Be6 g6 64. b5 Rd6 65. Bc8 Kg5 66. b6 Ba6 67. Rc7 Bxc8 68. b7 Bxb7 69. Rxb7 Rd3+ 70. Kf2 f4 71. Rb6 Kf5 72. Rb8 g5 73. Rf8+ Kg4 74. Rg8 Rd2+ 0-1

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.11"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Shubin, Kirill"]
[Result "1-0"]
[ECO "A59"]
[WhiteElo "2323"]
[BlackElo "2176"]
[PlyCount "49"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nf3 Nbd7 10. g3 Bg7 11. Kg2 0-0 12. a4 Qb6 13. Qe2 Ne8 14. Bg5 Nc7 15. Bxe7 Rfe8 16. a5 Qa6 17. Qxa6 Rxa6 18. Bg5 Bxc3 19. bxc3 Rxe4 20. Rhb1 Nxd5 21. Rb7 Nf8 22. Bh6 Re8 23. Ng5 Nxc3 24. Re1 Raa8 25. Rxf7 1-0

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.10"]
[Round "8"]
[White "Veselov, Andrey"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "2105"]
[BlackElo "2323"]
[PlyCount "52"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nf6 6. Qe2 Nc6 7. c3 e6 8. d4 cxd4 9. cxd4 d5 10. e5 Ne4 11. Be3 Be7 12. Ne1 f6 13. f3 Ng5 14. Qd2 h6 15. exf6 Bxf6 16. Nc3 0-0 17. Ne2 e5 18. dxe5 Nxe5 19. Rc1 Ne6 20. Nf4 d4 21. Nxe6 Qxe6 22. Bxd4 Rfd8 23. Qe3 Rxd4 24. f4 Qb6 25. fxe5 Bg5 26. Qf2 Bxc1 0-1

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.09"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Tugarin, Anton"]
[Result "0-1"]
[ECO "B39"]
[WhiteElo "2323"]
[BlackElo "2177"]
[PlyCount "42"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 Ne6 10. Rc1 Qa5 11. Bd3 d6 12. 0-0 Bd7 13. a3 g5 14. Qb3 Bc6 15. Qa2 Qe5 16. b4 b6 17. a4 Bb7 18. a5 0-0 19. axb6 axb6 20. Qb1 Nf4 21. Bxb6 Ra3 0-1

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.08"]
[Round "6"]
[White "Soffer, Ram"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2479"]
[BlackElo "2323"]
[PlyCount "47"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. b3 Nc6 10. Bb2 Qg4 11. Qxg4 Nxg4 12. Nxc6 bxc6 13. h3 Ne5 14. 0-0-0 Nd7 15. f4 Bh6 16. g3 0-0 17. Kc2 Rfd8 18. Ba3 Bg7 19. e5 Nc5 20. Bxc5 dxc5 21. Ne4 f6 22. e6 f5 23. Nxc5 Rd6 24. Rhe1 1-0

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.07"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Volodin, Aleksandr"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2323"]
[BlackElo "2491"]
[PlyCount "88"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. c4 c5 4. Ne2 Qa5+ 5. Nbc3 Nf6 6. f3 0-0 7. Be3 d6 8. Nc1 Qc7 9. Nb3 b6 10. Be2 e5 11. dxe5 dxe5 12. Nd5 Qd6 13. Bg5 Rd8 14. 0-0 Bb7 15. Qc2 Nc6 16. Rad1 Nd4 17. Nxd4 cxd4 18. Qd2 Re8 19. Nxf6+ Bxf6 20. Bxf6 Qxf6 21. Bd3 g5 22. b4 a5 23. Rb1 Bc8 24. c5 axb4 25. cxb6 Qxb6 26. Qxg5+ Qg6 27. Qxg6+ hxg6 28. Bc4 Be6 29. Rxb4 Bxc4 30. Rxc4 Rxa2 31. Rf2 Rea8 32. Rc8+ Kg7 33. Rxa8 Rxa8 34. Rb2 f5 35. Kf2 Ra3 36. h4 fxe4 37. fxe4 Re3 38. Re2 Rc3 39. Ra2 Rc5 40. Ra7+ Kh6 41. g4 Rc2+ 42. Kf1 Rh2 43. Re7 d3 44. Rxe5 Rh1+ 0-1

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.06"]
[Round "4"]
[White "Aleksandrov, Aleksej"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "E46"]
[WhiteElo "2606"]
[BlackElo "2323"]
[PlyCount "53"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 d5 6. cxd5 exd5 7. a3 Bd6 8. g3 Re8 9. Bg2 c6 10. 0-0 Bf5 11. f3 Nbd7 12. g4 Bxg4 13. fxg4 Nxg4 14. h3 Nxe3 15. Bxe3 Rxe3 16. Qd2 Qe7 17. Nf4 Nb6 18. Qf2 Re8 19. Nd1 Bxf4 20. Qxf4 Re6 21. b3 Nc8 22. Nf2 Nd6 23. Nd3 Rf6 24. Qe5 Re6 25. Qf4 Rf6 26. Qe5 Re6 27. Qf4 1/2-1/2

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.05"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Bodnaruk, Anastasia"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2323"]
[BlackElo "2459"]
[PlyCount "119"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[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. Nh3 Nbd7 10. e4 c5 11. Be2 Rc8 12. 0-0 h6 13. Be3 d5 14. cxd5 exd5 15. e5 Ne8 16. Qd2 Qe7 17. Rae1 Nc7 18. Nf4 cxd4 19. Bxd4 Qg5 20. Be3 Qxe5 21. Bd3 Qd6 22. Bd4 Ne6 23. Nxe6 fxe6 24. Qe3 Rce8 25. f4 Nf6 26. Qg3 Re7 27. Kh1 Ne4 28. Bxe4 dxe4 29. Bc3 a5 30. Be5 Qd8 31. Rd1 Bd5 32. h3 Rd7 33. Rfe1 Qe7 34. Qe3 b5 35. Qb6 b4 36. Qxa5 e3 37. Kh2 Qh4 38. Rxe3 bxa3 39. bxa3 Rb7 40. Rg3 Rd7 41. Qc3 Rff7 42. Rb1 Bb7 43. Rb6 Qe7 44. a4 Rd1 45. a5 Rd8 46. Bxg7 Rxg7 47. Rxg7+ Qxg7 48. Qxg7+ Kxg7 49. Rxb7+ Kf6 50. Rb4 Rd6 51. Ra4 Ra6 52. g4 e5 53. Kg3 Ke6 54. f5+ Kd5 55. Kf3 Rc6 56. a6 Rc3+ 57. Ke2 Rc8 58. a7 Ra8 59. Ke3 e4 60. Ra5+ 1-0

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.04"]
[Round "2"]
[White "Kozyakov, Andrey"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "1628"]
[BlackElo "2323"]
[PlyCount "70"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 b5 8. Qd2 Nbd7 9. g4 h6 10. h4 b4 11. Nce2 d5 12. exd5 Nxd5 13. Bf2 Bb7 14. Bg2 Ne5 15. c3 Nc4 16. Qc2 Qd7 17. Qb3 Rc8 18. Rc1 a5 19. cxb4 Bxb4+ 20. Nc3 a4 21. Qd1 Nce3 22. Bxe3 Nxe3 23. Qd2 Nxg2+ 24. Kf2 e5 25. Kxg2 Qxg4+ 26. Kf2 Qxd4+ 27. Qxd4 exd4 28. Nxa4 0-0 29. a3 Bd2 30. Rcd1 Be3+ 31. Kg3 f5 32. b4 f4+ 33. Kg4 Rc2 34. Rhf1 Bc8+ 35. Kh5 Rf5+ 0-1

[Event "Chigorin Memorial 23rd"]
[Site "St Petersburg"]
[Date "2015.10.03"]
[Round "1"]
[White "Biriukov, Oleg V"]
[Black "Popov, Alexei"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2323"]
[BlackElo "1942"]
[PlyCount "59"]
[EventDate "2015.10.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 168 Extra"]
[Source "ChessBase"]
[SourceDate "2015.10.29"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 Nf6 4. cxd5 Nxd5 5. Nf3 Bg4 6. e4 Nxc3 7. bxc3 e5 8. d5 Ne7 9. Rb1 Qc8 10. Qa4+ Bd7 11. Qb3 Ng6 12. Qxb7 Bc5 13. Qxc8+ Rxc8 14. Ba6 Rd8 15. Be3 Bb6 16. 0-0 0-0 17. c4 Bxe3 18. fxe3 Rb8 19. c5 c6 20. Rb7 Rfd8 21. Rxa7 Ra8 22. Rxa8 Rxa8 23. Bb7 Rxa2 24. dxc6 Be6 25. c7 Rc2 26. Ng5 Bg4 27. Bd5 Nh4 28. Bxf7+ Kh8 29. Be6 Rxg2+ 30. Kh1 1-0

[Event "St Petersburg Summer rapid"]
[Site "St Petersburg"]
[Date "2015.08.29"]
[Round "2"]
[White "Biriukov, Oleg V"]
[Black "Shirov, Alexei"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2323"]
[BlackElo "2702"]
[PlyCount "111"]
[EventDate "2015.08.29"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 Bg4 7. Qb3 Na5 8. Bb5+ Bd7 9. Qa4 e6 10. Nf3 a6 11. Bxd7+ Nxd7 12. 0-0 b5 13. Qd1 Bb4 14. Rc1 Rc8 15. Ne2 0-0 16. Rxc8 Qxc8 17. Nc1 Qb7 18. Nd3 Be7 19. Qb1 Rc8 20. Rc1 Nc4 21. h3 b4 22. b3 Na3 23. Rxc8+ Qxc8 24. Qc1 Qxc1+ 25. Nxc1 Nb5 26. Ne5 Nxe5 27. Bxe5 f6 28. Bg3 Kf7 29. Kf1 Kg6 30. f3 Kf5 31. Bf2 e5 32. g4+ Ke6 33. Ne2 Bd6 34. Ke1 g6 35. Kd2 e4 36. f4 h5 37. Kc2 hxg4 38. hxg4 Nc7 39. Kd2 Nb5 40. Kc2 Na7 41. Kd2 Nc6 42. Ng3 Ne7 43. Ke2 Kf7 44. Nf1 Ng8 45. Bh4 a5 46. Nh2 g5 47. Bg3 Ne7 48. Nf1 gxf4 49. Bxf4 Bxf4 50. exf4 f5 51. Ne3 fxg4 52. Nxg4 Nf5 53. Ne5+ Ke6 54. Nc6 Kd6 55. Nxa5 Nxd4+ 56. Kd2 0-1

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.26"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Matinian, Nikita"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2327"]
[BlackElo "2470"]
[PlyCount "70"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 Bg4 5. e3 Nc6 6. Be2 Nf6 7. h3 Bxf3 8. Bxf3 0-0 9. 0-0 Nd7 10. Rb1 e5 11. d5 Ne7 12. e4 f5 13. h4 Nf6 14. h5 Nxh5 15. Bxh5 gxh5 16. Qxh5 f4 17. Rd1 Rf6 18. Rd3 Rh6 19. Qg4 Rg6 20. Qh5 Kh8 21. Rh3 Qg8 22. Kf1 Bf6 23. Bd2 Rf8 24. Nb5 Rf7 25. Nxc7 Rxg2 26. Rh1 Nf5 27. exf5 Rxc7 28. b3 Rg5 29. Qh6 Rxf5 30. Bb4 f3 31. Bxd6 Qg2+ 32. Ke1 Rg7 33. Bc5 Bg5 34. Qh3 b6 35. Bf8 Rxf8 0-1

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.25"]
[Round "8"]
[White "Biriukov, Oleg V"]
[Black "Munguntuul, Batkhuyag"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2327"]
[BlackElo "2433"]
[PlyCount "120"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Be3 e5 7. d5 Na6 8. g4 Nc5 9. Bf3 a5 10. h4 Bd7 11. g5 Ne8 12. Nge2 a4 13. Nb5 c6 14. dxc6 bxc6 15. Nxd6 Qa5+ 16. Kf1 Be6 17. Nxe8 Rfxe8 18. Qc2 Rf8 19. Kg2 f5 20. gxf6 Rxf6 21. Kg3 Rd8 22. Bg2 Bc8 23. Qc3 Qxc3 24. Nxc3 Nd3 25. Nxa4 Nxf2 26. Rhb1 Nd3 27. Nc5 Nf4 28. Bf1 g5 29. a4 Rh6 30. a5 Rxh4 31. a6 Nh5+ 32. Kg2 Bg4 33. a7 Bf3+ 34. Kf2 Bxe4 35. Ke1 Bxb1 36. a8Q Rxa8 37. Rxa8+ Kf7 38. Bxg5 Rh2 39. Bd2 Ng3 40. Ra7+ Kg6 41. Bd3+ Bxd3 42. Nxd3 Bf6 43. Bc3 h5 44. Ra6 Kf5 45. Rxc6 h4 46. Nf2 Rg2 47. Rc8 Rg1+ 48. Kd2 Rf1 49. Nd1 Bg5+ 50. Kc2 h3 51. Rh8 Bf6 52. Ne3+ Ke6 53. Re8+ Kf7 54. Nxf1 Nxf1 55. Rxe5 Bxe5 56. Bxe5 Ke6 57. Bb8 Ne3+ 58. Kd3 Ng4 59. Ke4 h2 60. Bxh2 Nxh2 1/2-1/2

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.24"]
[Round "7"]
[White "Snetkov, Ivan"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B95"]
[WhiteElo "2011"]
[BlackElo "2327"]
[PlyCount "126"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Nbd7 8. 0-0-0 h6 9. Be3 Qc7 10. Qg3 b5 11. Bxb5 axb5 12. Ndxb5 Qb8 13. Nxd6+ Bxd6 14. Qxd6 Qxd6 15. Rxd6 Ng4 16. Re1 Ke7 17. Rd4 g5 18. b4 Nde5 19. f3 Nxe3 20. Rxe3 Bd7 21. b5 Rhc8 22. a4 Rc5 23. Rb4 Rac8 24. Rb3 Nc4 25. Rd3 Na5 26. Ra3 Be8 27. Kd1 f6 28. Ke2 Bg6 29. g4 Ke8 30. Kd1 Bh7 31. h3 Bg8 32. Ke1 Nc4 33. Rb3 Na5 34. Ra3 Bf7 35. Kd1 Kf8 36. Ke1 h5 37. Kf2 h4 38. Ke1 Nc4 39. Rb3 Na5 40. Ra3 Be8 41. Ke2 Kg7 42. Ke1 Kh6 43. Ke2 Bg6 44. Ke1 Be8 45. Kf2 Kg7 46. Ke2 Kh8 47. Kf2 Bg6 48. Ke2 Bh7 49. Kd1 Kg8 50. Kc1 f5 51. Kd1 f4 52. Ke2 Bg6 53. Ke1 Kf8 54. Ke2 Ke7 55. Ke1 Nc4 56. Rb3 Ne5 57. Kd2 Nxd3 58. cxd3 Be8 59. d4 R5c7 60. Kd3 Ra8 61. e5 Kd8 62. Rb4 Kc8 63. b6 Rxc3+ 0-1

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.23"]
[Round "6"]
[White "Biriukov, Oleg V"]
[Black "Kozhabekov, Adilkhan"]
[Result "1-0"]
[ECO "E36"]
[WhiteElo "2327"]
[BlackElo "2107"]
[PlyCount "91"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 dxc4 8. Qxc4 b6 9. Rd1 Ba6 10. Qa4 Qd7 11. Qc2 Qb5 12. Bxf6 gxf6 13. Nf3 Qa5+ 14. Qd2 Qxd2+ 15. Nxd2 Rd8 16. e3 Bxf1 17. Rxf1 Nd7 18. Ne4 Kg7 19. Ke2 f5 20. Nc3 c5 21. f3 cxd4 22. Rxd4 Ne5 23. Rxd8 Rxd8 24. Rc1 Kf6 25. Nb5 Rd7 26. f4 Ng6 27. g3 Ke7 28. Rc8 h6 29. b4 Nf8 30. Ra8 Nh7 31. Nxa7 Nf6 32. Nc8+ Ke8 33. Nxb6+ Rd8 34. Rxd8+ Kxd8 35. Nc4 Nd5 36. Kd3 f6 37. Kd4 Kc7 38. b5 h5 39. a4 Nb4 40. a5 Nc2+ 41. Kc5 Ne1 42. b6+ Kb7 43. Kb5 Nc2 44. a6+ Kb8 45. b7 Ka7 46. Na5 1-0

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.22"]
[Round "5"]
[White "Oral, Tomas"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2513"]
[BlackElo "2327"]
[PlyCount "79"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. Nxd4 Nc6 6. Bb5 Bd7 7. Nxc6 Bxc6 8. Bxc6+ bxc6 9. c4 Qa5 10. 0-0 Nf6 11. exd5 cxd5 12. a3 Qa6 13. cxd5 Nxd5 14. Ne4 Be7 15. Qg4 g6 16. Qg3 0-0 17. b4 f5 18. Nc5 Bxc5 19. bxc5 f4 20. Qg4 Rae8 21. Re1 Rf5 22. Bb2 Qb5 23. Bd4 e5 24. Qe2 Qxe2 25. Rxe2 Nc7 26. Bb2 e4 27. Rc1 Rd5 28. Kf1 Kf7 29. Rce1 f3 30. gxf3 exf3 31. Rxe8 Nxe8 32. c6 Rd2 33. Bc3 Rd3 34. Bb4 Nd6 35. Re3 Rxe3 36. fxe3 Ke6 37. Kf2 Ne8 38. e4 a5 39. Bxa5 Kd6 40. c7 1-0

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.21"]
[Round "4"]
[White "Biriukov, Oleg V"]
[Black "Aseev, Vladimir"]
[Result "1-0"]
[ECO "E94"]
[WhiteElo "2327"]
[BlackElo "2094"]
[PlyCount "55"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[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. Qc2 Nh5 9. Bg5 f6 10. Be3 Nf4 11. Bxf4 exf4 12. Rad1 c6 13. Rfe1 Qc7 14. b4 a6 15. c5 a5 16. cxd6 Qxd6 17. b5 Nb6 18. bxc6 Qxc6 19. Qb3+ Qe6 20. Rb1 Qxb3 21. Rxb3 Nd7 22. Nd5 Rd8 23. Nxf4 Nf8 24. h3 Bh6 25. Nd5 Be6 26. Nxf6+ Kg7 27. Rxb7+ Kxf6 28. e5+ 1-0

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.20"]
[Round "3"]
[White "Lintchevski, Daniil"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2555"]
[BlackElo "2327"]
[PlyCount "101"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. g3 d5 2. Nf3 c5 3. Bg2 Nc6 4. d4 Nf6 5. 0-0 e6 6. c4 dxc4 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 0-0 11. Nb3 Be7 12. Nfd4 Bd7 13. Nxc6 Bxc6 14. Bxc6 bxc6 15. c4 a5 16. Bg5 a4 17. Nd4 Rfc8 18. Rab1 Bc5 19. Bxf6 gxf6 20. Nf3 Rd8 21. Ne1 Rxd1 22. Rxd1 Rb8 23. Nd3 Ba3 24. f3 Rd8 25. e3 Kf8 26. Kf2 Ke7 27. Ke2 Rb8 28. Kd2 Kd6 29. Kc2 Kc7 30. Rg1 Bf8 31. g4 Bd6 32. f4 Kd7 33. Rg3 Rg8 34. Nf2 Ke7 35. Rh3 Rg7 36. Rh6 f5 37. g5 Bc5 38. Kd2 Bb4+ 39. Ke2 Bd6 40. Nd3 Kf8 41. c5 Be7 42. Kd2 Kg8 43. Kc3 Kh8 44. Kc4 Bd8 45. Ne5 Bc7 46. Nxc6 Rg8 47. Ne5 Bxe5 48. fxe5 Rxg5 49. c6 Rg2 50. Rh4 Rxa2 51. Kc5 1-0

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.19"]
[Round "2"]
[White "Biriukov, Oleg V"]
[Black "Klevets, Ksenia"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2327"]
[BlackElo "1850"]
[PlyCount "81"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 b5 6. b3 Bg4 7. Qc2 Nbd7 8. Ne5 Qc7 9. Nxg4 Nxg4 10. Be2 Ngf6 11. Bb2 e6 12. 0-0 Be7 13. Rac1 Rc8 14. f4 0-0 15. c5 g6 16. b4 Ne8 17. g4 Ng7 18. Kh1 f5 19. g5 Kf7 20. Rf3 Rh8 21. Rh3 Ne8 22. Rg1 Bf8 23. Bf3 Qd8 24. Kg2 h5 25. Kh1 Ng7 26. a4 Ra8 27. Be2 Be7 28. Rf3 Qc7 29. Rff1 Rab8 30. Ra1 h4 31. Ra2 Nh5 32. Qd2 Rh7 33. axb5 axb5 34. Rga1 Ng3+ 35. hxg3 hxg3+ 36. Kg1 Rh2 37. Qe1 Rbh8 38. Qxg3 Bxg5 39. Ra7 Bxf4 40. exf4 Rh1+ 41. Kf2 1-0

[Event "Chigorin Memorial 22nd"]
[Site "St Petersburg"]
[Date "2014.10.18"]
[Round "1"]
[White "Potapova, Margarita"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "1917"]
[BlackElo "2327"]
[PlyCount "72"]
[EventDate "2014.10.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. e3 d5 6. Bd3 Nbd7 7. 0-0 c5 8. Nc3 Bd6 9. b3 0-0 10. Bb2 Qe7 11. Qe2 Ne4 12. Nb5 Bb8 13. Nd2 Nxd2 14. Qxd2 a6 15. Nc3 Qd6 16. g3 cxd4 17. exd4 Nf6 18. Rad1 Ba7 19. Rfe1 Rfd8 20. Qg5 Qc6 21. cxd5 Nxd5 22. Be4 Qd7 23. Nb1 Rac8 24. Nd2 h6 25. Qh4 b5 26. Nf3 Nf6 27. Ne5 Qe7 28. Bb1 Bd5 29. b4 Qb7 30. Rd2 Nh7 31. f4 f5 32. g4 Bh1 33. Ba2 Bd5 34. Bb1 Bh1 35. Ba2 Bd5 36. Bb1 Bh1 1/2-1/2

[Event "St Petersburg Summer rapid"]
[Site "St Petersburg"]
[Date "2014.08.30"]
[Round "2"]
[White "Lysyj, Igor"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2683"]
[BlackElo "2327"]
[PlyCount "147"]
[EventDate "2014.08.30"]
[EventType "swiss (rapid)"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "CBM 162 Extra"]
[Source "ChessBase"]
[SourceDate "2014.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2014.10.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 e6 5. 0-0 Be7 6. b3 0-0 7. Bb2 c5 8. e3 d5 9. Nc3 Nbd7 10. Qe2 Ne4 11. cxd5 Nxc3 12. dxc3 exd5 13. Rfd1 Qc7 14. Ne1 Nf6 15. c4 dxc4 16. bxc4 Bxg2 17. Nxg2 Qc6 18. Nf4 Rad8 19. Bxf6 Rxd1+ 20. Rxd1 Bxf6 21. Nd5 Re8 22. Qc2 g6 23. a4 Bg7 24. h4 h5 25. Qb3 Kh7 26. Qb5 Qxb5 27. axb5 Rd8 28. Rd2 Rd6 29. Kg2 f5 30. Ra2 Rd7 31. f4 Kg8 32. Kf3 Kf7 33. e4 Bd4 34. Re2 Rb7 35. Re1 Rd7 36. Rc1 Rb7 37. Rc2 Rd7 38. Ra2 Rb7 39. Re2 Rd7 40. e5 Ke6 41. Rd2 Rb7 42. Ke2 Rd7 43. Kd1 Rb7 44. Kc2 Rd7 45. Kb3 Rb7 46. Nb4 Bxe5 47. fxe5 cxb4 48. Rd6+ Kxe5 49. Rxg6 Rd7 50. Kxb4 Rd3 51. Rg7 Rf3 52. c5 bxc5+ 53. Kxc5 Ra3 54. Rg6 Ra1 55. Rg5 Rc1+ 56. Kb4 Rb1+ 57. Kc4 Rc1+ 58. Kd3 Rb1 59. Rxh5 Rb3+ 60. Kc4 Rxg3 61. Rh7 Ra3 62. h5 Kf6 63. h6 Kg6 64. Rh8 f4 65. Kb4 Ra1 66. Rf8 Rf1 67. h7 Kxh7 68. Rf7+ Kg6 69. Rxa7 f3 70. Ra2 Rb1+ 71. Kc5 Kf5 72. b6 Kf4 73. Kc6 Kg3 74. b7 1/2-1/2

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.13"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Grinberg, Eyal"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2328"]
[BlackElo "2087"]
[PlyCount "105"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 b5 10. Be2 Bb7 11. e4 e5 12. dxe5 Nxe5 13. Nd4 b4 14. Nf5 bxc3 15. Rd1 Ne8 16. Qxc3 Qf6 17. f4 Bc7 18. fxe5 Qxe5 19. Qxe5 Bxe5 20. Be3 Nf6 21. Bf3 Rfd8 22. Rac1 Rxd1+ 23. Rxd1 a5 24. Bc5 g6 25. Ne3 Ba6 26. b3 Bb5 27. a4 Ba6 28. Nc2 Bc3 29. Bd4 Bxd4+ 30. Nxd4 Rb8 31. Rc1 Bb7 32. Rc5 Nd7 33. Rxa5 c5 34. Nb5 Bc6 35. Na7 Ba8 36. Rb5 Rxb5 37. Nxb5 Bc6 38. Nc3 Ne5 39. Kf2 Kf8 40. Ke3 Ke7 41. Be2 Kd6 42. h3 h5 43. Kf4 f6 44. h4 Nf7 45. Bc4 Ne5 46. g3 Bd7 47. a5 g5+ 48. hxg5 fxg5+ 49. Kxg5 Nxc4 50. bxc4 Ke5 51. a6 Kd4 52. a7 Bc6 53. Kf6 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.12"]
[Round "8"]
[White "Sivuk, Vitaly"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2517"]
[BlackElo "2328"]
[PlyCount "55"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nf6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. f3 0-0 10. Be3 Rc8 11. b3 Nc6 12. 0-0 Nxd4 13. Bxd4 Ne8 14. Bxg7 Kxg7 15. f4 Qc7 16. Qd4+ Kg8 17. Nd5 Qd8 18. f5 Nc7 19. Ne3 f6 20. Rad1 Kg7 21. h4 b5 22. fxg6 hxg6 23. e5 dxe5 24. Qg4 Qe8 25. h5 e6 26. h6+ Kxh6 27. Qh4+ Kg7 28. Qxf6+ 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.11"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Doronkin, Grigory"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2328"]
[BlackElo "1981"]
[PlyCount "101"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. Bd3 0-0 8. 0-0 dxc4 9. Bxc4 a6 10. Rd1 b5 11. Bd3 Bb7 12. Ng5 Bxh2+ 13. Kxh2 Ng4+ 14. Kg1 Qxg5 15. f3 Ngf6 16. e4 Qh4 17. Be3 Rac8 18. b4 Nh5 19. g4 Qg3+ 20. Qg2 Qxg2+ 21. Kxg2 Nhf6 22. Ne2 Rfd8 23. Nc1 Ne8 24. Nb3 e5 25. Rac1 Nc7 26. Be2 Ne6 27. dxe5 Nxe5 28. Na5 Ba8 29. f4 Ng6 30. Kg3 Nef8 31. Bf3 f6 32. Bb6 Rxd1 33. Rxd1 Kf7 34. Nb3 Rb8 35. Ba5 Bb7 36. Nc5 Bc8 37. Rd6 Ne7 38. f5 g6 39. Kf2 h5 40. g5 fxg5 41. f6 g4 42. Bd1 Be6 43. Nxe6 Nxe6 44. Bb3 Kxf6 45. Rxe6+ Kf7 46. Rxc6+ Kg7 47. Rc7 Kf8 48. Be6 Re8 49. Bb6 Kg7 50. Bd4+ Kh6 51. Bf7 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.10"]
[Round "6"]
[White "Aleksandrov, Aleksej"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "E54"]
[WhiteElo "2600"]
[BlackElo "2328"]
[PlyCount "192"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 c5 6. Nf3 d5 7. 0-0 cxd4 8. exd4 dxc4 9. Bxc4 b6 10. Bd3 Bb7 11. Re1 Nbd7 12. Bg5 Rc8 13. Rc1 Be7 14. Bb1 Nd5 15. Qd3 g6 16. Bd2 Re8 17. Ne4 Rxc1 18. Rxc1 Qb8 19. Re1 N7f6 20. Ne5 Nxe4 21. Qxe4 Qd6 22. Qf3 Bf6 23. h4 Qe7 24. h5 Rf8 25. Qg4 Bg7 26. a3 Nf6 27. Qh4 Nd5 28. Qg3 gxh5 29. Bh6 f6 30. Nf3 Rf7 31. Nh4 Qc7 32. Bxg7 Rxg7 33. Qxc7 Rxc7 34. Be4 Kg7 35. g3 f5 36. Bd3 Kf6 37. Ng2 Rg7 38. Bc4 Re7 39. Bb3 Rd7 40. Rd1 Rc7 41. Kh2 Rg7 42. Kh3 Re7 43. Re1 Rd7 44. Rc1 Rc7 45. Rxc7 Nxc7 46. Nf4 Bf3 47. Kh4 h6 48. Nxh5+ Bxh5 49. Kxh5 Kg7 50. a4 a5 51. Bc4 Kh7 52. Ba2 Kg7 53. Bb3 Kh7 54. Bd1 Kg7 55. Bf3 Kh7 56. Bc6 Kg7 57. Bd7 Kh7 58. Bc8 Kg7 59. f3 Kh7 60. Bd7 Kg7 61. Bc6 Kh7 62. Kh4 Kg6 63. Kh3 Kg5 64. f4+ Kf6 65. Kg2 Ke7 66. Kf2 Kd6 67. Bf3 Ke7 68. Ke3 Kd6 69. Kd3 Ke7 70. Kc4 Kd6 71. Bg2 Ke7 72. d5 Kd6 73. dxe6 Kxe6 74. Bf1 Kd6 75. Bd3 Ke6 76. Bb1 Kf6 77. Kd4 Ke6 78. Ba2+ Kd6 79. Bc4 Ne6+ 80. Bxe6 Kxe6 81. Kc4 Kd6 82. Kb5 Kc7 83. b3 Kb7 84. Kc4 Kc6 85. Kd4 Kd6 86. Kc4 Kc6 87. b4 axb4 88. Kxb4 Kc7 89. Kc3 Kc6 90. Kc4 Kd6 91. Kd4 Ke6 92. Kc4 Kd6 93. Kb5 Kc7 94. Kb4 Kd6 95. Kc4 Kc6 96. Kb4 Kd6 1/2-1/2

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.09"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Kostrikina, Anna"]
[Result "1-0"]
[ECO "E36"]
[WhiteElo "2328"]
[BlackElo "2140"]
[PlyCount "139"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 d5 7. Bg5 c5 8. dxc5 d4 9. Qg3 Nbd7 10. Nf3 e5 11. 0-0-0 Re8 12. e3 Nxc5 13. Nxe5 Nce4 14. Qf4 Nxg5 15. Qxg5 h6 16. Qf4 g5 17. Qxd4 Qe7 18. f4 Bg4 19. Re1 Red8 20. Qc3 Bf5 21. Bd3 Bxd3 22. Nxd3 Ne4 23. Qc2 Rac8 24. Ne5 b5 25. Rd1 Nd6 26. c5 Nc4 27. Rxd8+ Rxd8 28. Nxc4 bxc4 29. Qxc4 Qxe3+ 30. Kb1 Rd4 31. Qc1 Qd3+ 32. Qc2 Qxc2+ 33. Kxc2 Rc4+ 34. Kd3 Rxc5 35. fxg5 hxg5 36. Re1 Rd5+ 37. Ke3 Re5+ 38. Kf2 Rf5+ 39. Kg3 Rb5 40. b4 a5 41. Rb1 Kg7 42. Kf3 axb4 43. axb4 Kf6 44. Ke4 Ke6 45. Kd4 Kd6 46. Kc4 Rf5 47. b5 Kc7 48. b6+ Kb7 49. Rb2 g4 50. Kd4 Rh5 51. g3 Rf5 52. Ke4 Rf1 53. Ke5 f6+ 54. Ke6 Rf3 55. Rb4 Rf2 56. Rxg4 Rxh2 57. Kxf6 Rg2 58. Rg7+ Kxb6 59. g4 Kc6 60. g5 Kd6 61. Ra7 Rf2+ 62. Kg7 Ke6 63. g6 Rg2 64. Rf7 Rg1 65. Rf2 Rg3 66. Kh7 Rh3+ 67. Kg8 Rg3 68. g7 Ke7 69. Re2+ Kf6 70. Kf8 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.08"]
[Round "4"]
[White "Erenberg, Ariel"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "2029"]
[BlackElo "2328"]
[PlyCount "152"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 d5 6. a3 Be7 7. cxd5 Nxd5 8. Bd2 Nd7 9. g3 N5b6 10. Bg2 e5 11. 0-0 exd4 12. Nxd4 Ne5 13. Qc2 c5 14. Nde2 Qd3 15. Qc1 Rd8 16. Be1 g5 17. Be4 Qa6 18. f4 Nd3 19. Qc2 Bh3 20. Rd1 c4 21. Bg2 Bxg2 22. Kxg2 Nd5 23. Nxd5 Rxd5 24. Nd4 Bc5 25. Nf3 g4 26. Ne5 Rxe5 27. fxe5 Qc6+ 28. Kg1 Bxe3+ 29. Bf2 Nxf2 30. Rxf2 Qf3 31. Rdd2 Re8 32. Qxc4 Rxe5 33. Qe2 Qxe2 34. Rdxe2 Bxf2+ 35. Rxf2 Re1+ 36. Kg2 Rb1 37. Rc2 Kg7 38. h3 h5 39. hxg4 hxg4 40. Kf2 Kg6 41. b4 b6 42. Rc7 Rb2+ 43. Ke3 Rb3+ 44. Kf4 Rxa3 45. Kxg4 b5 46. Rb7 a6 47. Rb6+ f6 48. Rc6 Ra4 49. Kf3 Kf5 50. g4+ Ke5 51. Kg3 Ra3+ 52. Kf2 Ra2+ 53. Kf3 Ra1 54. Kg2 Ra4 55. Kf3 Rxb4 56. Rxa6 Rf4+ 57. Kg3 f5 58. g5 Rg4+ 59. Kf3 Kd4 60. g6 b4 61. Ke2 Rg3 62. Kd2 Rg2+ 63. Kc1 b3 64. Rb6 Kc3 65. Rc6+ Kd3 66. Rb6 b2+ 67. Kb1 f4 68. Rb3+ Ke4 69. Rb4+ Kf5 70. Rxb2 Rxb2+ 71. Kxb2 Kxg6 72. Kc2 Kg5 73. Kd3 Kg4 74. Ke2 Kg3 75. Kf1 Kf3 76. Kg1 Ke2 0-1

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.07"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Gogin, Maksim"]
[Result "0-1"]
[ECO "A58"]
[WhiteElo "2328"]
[BlackElo "2075"]
[PlyCount "70"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. g3 d6 8. Bg2 Nbd7 9. Nf3 Bg7 10. Rb1 Nb6 11. b3 Bc8 12. Nh4 h6 13. Qd3 Qd7 14. 0-0 g5 15. Nf3 Bb7 16. Ne1 0-0 17. h3 Rfb8 18. Nc2 e6 19. dxe6 Qxe6 20. e4 Ba6 21. Qd2 Bxf1 22. Kxf1 Nfd7 23. Bb2 Nc4 24. bxc4 Qxc4+ 25. Kg1 Bxc3 26. Bxc3 Rxb1+ 27. Kh2 Ne5 28. Ne3 Qd3 29. Qxd3 Nxd3 30. e5 Rd8 31. exd6 Rxd6 32. Nf5 Ra6 33. Bd5 Rc1 34. Bg7 c4 35. Bxh6 Rxa2 0-1

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.06"]
[Round "2"]
[White "Burmakin, Vladimir"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2581"]
[BlackElo "2328"]
[PlyCount "149"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Nbd2 Bf5 4. Nh4 Bc8 5. g3 e6 6. Bg2 c5 7. dxc5 Bxc5 8. 0-0 Nc6 9. c4 0-0 10. cxd5 exd5 11. Nb3 Bb6 12. Bg5 h6 13. Bxf6 Qxf6 14. Qd2 Be6 15. Nf3 Rad8 16. Rac1 d4 17. Ne1 Rfe8 18. Nd3 Bxb3 19. axb3 Qe6 20. Bxc6 bxc6 21. Rfe1 Qxb3 22. Rxc6 Rc8 23. Rxc8 Rxc8 24. Rc1 Re8 25. Rc6 Qb5 26. Rc2 Qb3 27. Rc6 Qb5 28. Qc2 Qf5 29. Nf4 Qxc2 30. Rxc2 g6 31. Kf1 h5 32. h4 Rd8 33. Ke1 Kg7 34. Rc6 Rd7 35. Nd3 Rd5 36. Kd2 Ba5+ 37. Kc2 Bb6 38. Kb3 Rd7 39. Kc2 Re7 40. Kd2 Ba5+ 41. Kd1 Bb6 42. Ke1 Rd7 43. Kf1 Re7 44. Nf4 Rd7 45. Kg2 Bc7 46. Nd3 Bb6 47. Kf3 Rd5 48. Ke4 Rd7 49. Ne1 Rb7 50. Rc2 Bd8 51. Nf3 Bf6 52. Nxd4 a5 53. e3 a4 54. Kd3 Rb4 55. Kc3 Rb6 56. Kc4 Rb8 57. Rd2 Ra8 58. Nb5 Be7 59. Rd7 a3 60. bxa3 Bxa3 61. Nc7 Rc8 62. Kd5 Kg8 63. Ke4 Bb2 64. f4 Rb8 65. Nd5 Re8+ 66. Kf3 Ra8 67. e4 Ra3+ 68. Kg2 Ra2 69. Kh3 Bg7 70. Rd8+ Kh7 71. e5 Re2 72. Nc7 Rc2 73. Ne8 Kh6 74. Rd7 Rc8 75. Nd6 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.05"]
[Round "1"]
[White "Biriukov, Oleg V"]
[Black "Khatenever, Feliks"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2328"]
[BlackElo "1837"]
[PlyCount "75"]
[EventDate "2013.10.05"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 156 Extra"]
[Source "ChessBase"]
[SourceDate "2013.10.22"]
[SourceVersion "1"]
[SourceVersionDate "2013.10.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 Bg7 8. Rb1 0-0 9. Be2 Qc7 10. 0-0 Nc6 11. Be3 Rd8 12. d5 b6 13. Nd2 Na5 14. Qc2 f5 15. Nc4 Nxc4 16. Bxc4 Kh8 17. f3 Qe5 18. Bd2 Bd7 19. a4 Rab8 20. f4 Qxe4 21. Qa2 b5 22. axb5 Bxb5 23. Rxb5 Rxb5 24. Bxb5 Qxd5 25. Qxd5 Rxd5 26. Rd1 Bf6 27. Kf1 Rd6 28. Ke2 h6 29. Ra1 Rb6 30. Bc4 Rb7 31. Ra5 Rc7 32. Kd3 e5 33. Bd5 Kg7 34. Kc4 e4 35. Rxc5 Re7 36. Be3 g5 37. g3 gxf4 38. gxf4 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.04"]
[Round "9"]
[White "Popov, Valerij"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "E05"]
[WhiteElo "2577"]
[BlackElo "2327"]
[PlyCount "43"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. 0-0 0-0 6. c4 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Be4 11. Qc1 Qc8 12. b4 Nc6 13. Nc3 Nxb4 14. Nxe4 Nxe4 15. Bxb4 Bxb4 16. Qb1 Bc3 17. Qxe4 Bxa1 18. Ng5 g6 19. Qh4 h5 20. Bxa8 Bxd4 21. Qxd4 Qxa8 22. Rd1 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.03"]
[Round "8"]
[White "Biriukov, Oleg V"]
[Black "Eliseev, Urii"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2327"]
[BlackElo "2486"]
[PlyCount "121"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 c5 2. d5 d6 3. e4 g6 4. Nc3 Bg7 5. Nf3 Nf6 6. Be2 0-0 7. 0-0 Na6 8. Nd2 Nc7 9. a4 b6 10. Nc4 Ba6 11. Bf4 Nd7 12. g3 Rb8 13. Qd2 Bxc4 14. Bxc4 a6 15. Rfb1 Qc8 16. Be2 b5 17. Ra2 Kh8 18. Nd1 Nf6 19. Bf3 Ng4 20. b3 Re8 21. h3 Ne5 22. Bg2 e6 23. Ne3 Rb6 24. a5 Rb8 25. c3 b4 26. c4 exd5 27. exd5 Qd7 28. Rd1 Re7 29. Qc1 f5 30. Nf1 Ne8 31. Nh2 Nf6 32. Bg5 Rbe8 33. Nf3 Nf7 34. Bxf6 Bxf6 35. Re1 g5 36. Rxe7 Rxe7 37. Kf1 g4 38. Ng1 Ng5 39. Qd1 Be5 40. Re2 h6 41. h4 Nh7 42. Qe1 Kg7 43. f4 Bf6 44. Rxe7+ Qxe7 45. Qe6 Qxe6 46. dxe6 Nf8 47. Bb7 Nxe6 48. Bxa6 Nd4 49. Bc8 Bd8 50. a6 Bb6 51. Ne2 Nxb3 52. Bxf5 Nd2+ 53. Ke1 Nxc4 54. Bxg4 Ne3 55. Bf3 d5 56. g4 c4 57. f5 b3 58. g5 hxg5 59. hxg5 b2 60. f6+ Kg6 61. Nc3 0-1

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.02"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Ajrapetjan, Yuriy"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2327"]
[BlackElo "2502"]
[PlyCount "156"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[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 h6 9. Bh4 d5 10. e3 Re8 11. Nh3 Nbd7 12. cxd5 exd5 13. Be2 Qe7 14. Bf2 c5 15. 0-0 cxd4 16. Qxd4 Nc5 17. Rad1 Rac8 18. b4 Ne6 19. Qb2 g5 20. Rfe1 Nd7 21. Bb5 Red8 22. Bg3 Qf6 23. Qxf6 Nxf6 24. Be5 Nd7 25. Bb2 Rc2 26. Re2 Rxe2 27. Bxe2 Rc8 28. Rd2 Rc7 29. Nf2 f6 30. Ng4 Kg7 31. Bb5 Nef8 32. h4 gxh4 33. f4 a6 34. Bd3 h5 35. Nh2 d4 36. Bxd4 Rc1+ 37. Nf1 b5 38. Kf2 Ne6 39. Bb2 Rc7 40. Bf5 Kf7 41. Nh2 Ke7 42. Rc2 Rxc2+ 43. Bxc2 Nb6 44. Nf3 Nc4 45. Bc1 Bxf3 46. Kxf3 Nc7 47. Ke4 Nd6+ 48. Kd4 Ne6+ 49. Kd5 Kd7 50. Bg6 Ng7 51. Bb2 Ngf5 52. Bxf5+ Nxf5 53. Bc1 Ne7+ 54. Kc5 f5 55. Bb2 Ke6 56. Bc3 Nc8 57. Be5 Ne7 58. Bd4 Nc8 59. Be5 Kd7 60. Bf6 Nd6 61. Bxh4 Nc4 62. a4 Nxe3 63. axb5 axb5 64. g3 Kc7 65. Kxb5 Kb7 66. Kc5 Kc7 67. Kd4 Nf1 68. Ke5 Ne3 69. Be7 Nf1 70. Kxf5 Nxg3+ 71. Kg5 Kd7 72. Bc5 Ke6 73. Kh4 Ne4 74. Kxh5 Kf5 75. Be3 Nf6+ 76. Kh4 Nd5 77. b5 Ke4 78. Bc1 Kd4 1/2-1/2

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.01"]
[Round "6"]
[White "Mrykhin, Igor"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2110"]
[BlackElo "2327"]
[PlyCount "84"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. b4 e5 2. Bb2 Bxb4 3. Bxe5 Nf6 4. c4 0-0 5. e3 Re8 6. Nf3 d5 7. a3 Ba5 8. cxd5 Nxd5 9. Be2 c5 10. 0-0 Nc6 11. Bb2 Qb6 12. Qc2 Bf5 13. d3 c4 14. Bc1 cxd3 15. Bxd3 Bxd3 16. Qxd3 Rad8 17. Qc2 Qc7 18. Bb2 Ne5 19. Qxc7 Nxf3+ 20. gxf3 Bxc7 21. Rd1 b5 22. Bd4 Bb6 23. Bxb6 Nxb6 24. Nc3 a6 25. Rdb1 Rc8 26. Rb3 Rc4 27. Rd1 Kf8 28. Kg2 Ke7 29. Nd5+ Nxd5 30. Rxd5 Rd8 31. Re5+ Kf6 32. f4 g6 33. Kf3 Rd2 34. Re8 Rcc2 35. Ra8 Rxf2+ 36. Kg3 Rg2+ 37. Kf3 Kg7 38. Rxa6 f5 39. e4 Rxh2 40. Ra7+ Kh6 41. Kg3 fxe4 42. f5 Kg5 0-1

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.31"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Nazaretyan, Tigran"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2327"]
[BlackElo "2121"]
[PlyCount "95"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 c6 3. Bf4 d5 4. e3 Bf5 5. Nc3 e6 6. h3 Qb6 7. Qc1 Nbd7 8. c5 Qd8 9. Nf3 Ne4 10. Be2 g5 11. Bh2 h5 12. Nd2 Nxd2 13. Qxd2 b6 14. b4 bxc5 15. bxc5 e5 16. Qd1 g4 17. hxg4 hxg4 18. Bxg4 Qg5 19. Bxf5 Qxf5 20. Qe2 Rh6 21. Kf1 Qh7 22. Kg1 f5 23. Rb1 Nf6 24. f3 Be7 25. Qa6 Nd7 26. Rb7 Rd8 27. Rc7 exd4 28. exd4 Bg5 29. Rxc6 Be3+ 30. Kf1 Rxc6 31. Qxc6 f4 32. Qe6+ Kf8 33. Qxe3 fxe3 34. Bd6+ Kg8 35. Rxh7 Kxh7 36. Nxd5 Re8 37. Ke2 Kg6 38. Nxe3 Rc8 39. Nd5 Kf7 40. Kd3 Rc6 41. Nc7 a6 42. g4 Nf6 43. Kc4 Ne8 44. Nxe8 Kxe8 45. d5 Rc8 46. c6 Kf7 47. Kc5 Rh8 48. c7 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.30"]
[Round "4"]
[White "Halkias, Stelios"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "A38"]
[WhiteElo "2581"]
[BlackElo "2327"]
[PlyCount "59"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 g6 7. d3 Bg7 8. Bd2 0-0 9. 0-0 Nc7 10. Rc1 b6 11. h4 Bb7 12. h5 Nd4 13. Nxd4 Bxg2 14. Kxg2 Qxd4 15. hxg6 hxg6 16. Rh1 Ne6 17. Qg1 f5 18. Rh4 Qd7 19. Qh2 Kf7 20. Bh6 Rh8 21. Bxg7 Kxg7 22. Rh1 Rxh4 23. Qxh4 Rg8 24. e4 Nf8 25. Nd5 Kf7 26. Re1 Rg7 27. Qf4 e6 28. Ne3 Qxd3 29. Ng4 g5 30. Qc7+ 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.29"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Chehlov, Aleksander"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2327"]
[BlackElo "2124"]
[PlyCount "85"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[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 Be6 9. dxc5 Bxc5 10. a3 0-0 11. b4 Bb6 12. Bg5 Re8 13. Na4 h6 14. Nxb6 axb6 15. Be3 Bg4 16. Re1 Rxe3 17. fxe3 Qe7 18. Qb3 Re8 19. Rad1 Bc8 20. Nd2 Be6 21. Nf1 Ne5 22. Qc3 Nc4 23. Nd2 b5 24. Nxc4 bxc4 25. Rd4 b5 26. e4 dxe4 27. Bxe4 Nxe4 28. Rxe4 Ra8 29. Rd1 Qa7+ 30. Qe3 Qb7 31. Rxe6 fxe6 32. Qxe6+ Qf7 33. Qxf7+ Kxf7 34. Rd5 Rxa3 35. Rxb5 Rb3 36. Kf2 c3 37. Ke3 c2+ 38. Kd2 Rc3 39. Kc1 Rc4 40. Rf5+ Ke6 41. Rf4 Rc7 42. b5 Kd6 43. b6 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.28"]
[Round "2"]
[White "Shomoev, Anton"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B37"]
[WhiteElo "2571"]
[BlackElo "2327"]
[PlyCount "65"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. e4 Nf6 6. Nc3 d6 7. Nc2 Bg7 8. Be2 0-0 9. 0-0 Nd7 10. Bd2 Nc5 11. b3 Bxc3 12. Bxc3 Nxe4 13. Bb2 Be6 14. Qc1 f5 15. Bf3 Nf6 16. Re1 Bf7 17. Qh6 Qc7 18. Bxc6 bxc6 19. Nd4 e5 20. Nxf5 gxf5 21. Qxf6 Bg6 22. Qe6+ Rf7 23. Rad1 Rd8 24. c5 d5 25. Rxe5 Qd7 26. f4 Qxe6 27. Rxe6 Rc7 28. Be5 Rcc8 29. Re7 a6 30. Rd4 Re8 31. Rd7 Rcd8 32. Rc7 Rc8 33. Rb7 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.27"]
[Round "1"]
[White "Biriukov, Oleg V"]
[Black "Radkov, Bazhen D"]
[Result "1-0"]
[ECO "E37"]
[WhiteElo "2327"]
[BlackElo "1860"]
[PlyCount "81"]
[EventDate "2012.10.27"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 c5 8. dxc5 Nc6 9. cxd5 exd5 10. Nf3 Bf5 11. b4 Ng3 12. Qb2 Nxh1 13. Qxg7 Rf8 14. Bh6 Qe7 15. Qxf8+ Qxf8 16. Bxf8 Kxf8 17. g3 Bg4 18. Bg2 Bxf3 19. exf3 Nd4 20. Kf1 Nxf2 21. Kxf2 b6 22. Rd1 bxc5 23. bxc5 Ne6 24. Rxd5 Rc8 25. Bh3 Rxc5 26. Bxe6 Rc2+ 27. Kg1 fxe6 28. Ra5 Rc3 29. f4 Rc7 30. Kg2 Ke7 31. Kf3 Kd6 32. Kg4 Rg7+ 33. Kh5 Rc7 34. Kh6 Rc2 35. h4 Rg2 36. Rg5 Ra2 37. Kxh7 Rxa3 38. h5 a5 39. h6 Ra1 40. Kg7 a4 41. h7 1-0

[Event "Chigorin Memorial rap 20th"]
[Site "St Petersburg"]
[Date "2012.10.25"]
[Round "1"]
[White "Lysyj, Igor"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2628"]
[BlackElo "2327"]
[PlyCount "53"]
[EventDate "2012.10.25"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. Bf4 dxc4 7. e3 Nd5 8. Bxc4 Nxf4 9. exf4 Bd6 10. g3 0-0 11. 0-0 Nd7 12. Qe2 Nf6 13. Rad1 Qe7 14. Rfe1 Rfe8 15. Bb5 c6 16. Ba4 Rad8 17. Bc2 c5 18. Ba4 Rf8 19. d5 a6 20. dxe6 b5 21. Bc2 Qxe6 22. Qxe6 fxe6 23. Ng5 Rfe8 24. Nxe6 Rd7 25. Bf5 Bf8 26. Rxd7 Nxd7 27. Bxh7+ 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.09.02"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "E35"]
[WhiteElo "2332"]
[BlackElo "2117"]
[PlyCount "89"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Bb4 7. e3 Qe7 8. Bd3 h6 9. Bh4 c5 10. a3 Bxc3+ 11. Qxc3 c4 12. Bb1 b5 13. Ne2 a5 14. 0-0 Nc6 15. b3 b4 16. Qc1 g5 17. Bg3 Ba6 18. axb4 Qxb4 19. bxc4 Bxc4 20. Ba2 Ne4 21. Bxc4 Qxc4 22. Qxc4 dxc4 23. Rfc1 0-0 24. Rxc4 Nb4 25. Nc3 Nd2 26. Rc7 Rfc8 27. h3 Rd8 28. Ra3 Nd5 29. Nxd5 Rxd5 30. Rc2 Ne4 31. Bc7 Rc8 32. Raa2 Rb5 33. f3 Nf6 34. e4 h5 35. d5 g4 36. h4 Kh7 37. Kf2 Ne8 38. Be5 Rxc2+ 39. Rxc2 f6 40. Rc8 fxe5 41. Rxe8 a4 42. d6 Rb2+ 43. Kg3 Rd2 44. Rxe5 Kg6 45. Rg5+ 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.09.01"]
[Round "8"]
[White "Gorjunov, Sergey"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2128"]
[BlackElo "2332"]
[PlyCount "99"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. c4 g6 2. Nc3 c5 3. Nf3 Bg7 4. g3 Nc6 5. Bg2 e5 6. d3 Nge7 7. Bd2 h6 8. Qc1 g5 9. h4 g4 10. Nh2 h5 11. Nf1 d6 12. Ne3 0-0 13. Ned5 Nxd5 14. Nxd5 Ne7 15. Bg5 f6 16. Bh6 Be6 17. 0-0 Bxd5 18. Bxd5+ Nxd5 19. cxd5 Qe7 20. f3 Kh7 21. Bxg7 Qxg7 22. f4 Rae8 23. fxe5 fxe5 24. Qe3 Qg6 25. b4 b6 26. bxc5 bxc5 27. Rab1 Rxf1+ 28. Rxf1 Kg7 29. Qd2 Re7 30. a4 Rf7 31. Rxf7+ Qxf7 32. Qg5+ Kh7 33. Qd8 Qxd5 34. Qe7+ Kg8 35. Qg5+ Kf8 36. Qxh5 Qd4+ 37. Kg2 c4 38. Qf5+ Ke7 39. Qh7+ Kf6 40. dxc4 Qxc4 41. Qxa7 Ke6 42. Kf2 Qc6 43. a5 Qh1 44. Qe3 Qh2+ 45. Kf1 Qh1+ 46. Qg1 Qd5 47. a6 Qd1+ 48. Kf2 Qd4+ 49. Kf1 Qd1+ 50. Kf2 1/2-1/2

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.31"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Tselkovskiy, Kirill"]
[Result "1/2-1/2"]
[ECO "A61"]
[WhiteElo "2332"]
[BlackElo "1991"]
[PlyCount "80"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Re8 11. Nd2 Nbd7 12. Bxd6 Nb6 13. Bxc5 Nfxd5 14. Bxb6 Nxb6 15. Nc4 Qf6 16. a5 Nxc4 17. Bxc4 Qh4 18. Ra4 Bxc3+ 19. bxc3 Rxe3+ 20. Be2 Re4 21. Rxe4 Qxe4 22. 0-0 Be6 23. Bf3 Qc4 24. Qd6 Qb5 25. Qb4 Bc4 26. Rd1 Rb8 27. Rd6 Qe5 28. Rb6 Bd5 29. Bxd5 Qxd5 30. Rxa6 Rd8 31. Rb6 Qe5 32. f4 Qe1+ 33. Kh2 Rd3 34. Rd6 Qg3+ 35. Kh1 Qe1+ 36. Kh2 Qg3+ 37. Kh1 Qe1+ 38. Kh2 Qg3+ 39. Kh1 Qe1+ 40. Kh2 Qg3+ 1/2-1/2

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.30"]
[Round "6"]
[White "Manin, Viktor L"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2181"]
[BlackElo "2332"]
[PlyCount "120"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. c4 c6 4. Qc2 dxc4 5. Qxc4 Qd5 6. Qxd5 cxd5 7. Nc3 Nc6 8. Bf4 Bf5 9. Nf3 e6 10. Bg2 Ne4 11. 0-0 Nxc3 12. bxc3 Be7 13. c4 Be4 14. cxd5 exd5 15. Rfd1 f6 16. Bh3 Ba3 17. Bc1 Bd6 18. Ne1 Kf7 19. Bb2 Ne7 20. f3 Bf5 21. Bg2 Rac8 22. h3 Bxg3 23. e4 Be6 24. Nd3 b6 25. a4 a5 26. Ba3 Rc4 27. Rab1 Rb8 28. Nb2 Rc3 29. Rd3 Rbc8 30. Bf1 Rc2 31. Nd1 Bh2+ 32. Kh1 dxe4 33. fxe4 Bc4 34. Rf3 Bxf1 35. Rxf1 Bc7 36. Bxe7 Kxe7 37. Rf3 Bd8 38. Ne3 Rc1+ 39. Rf1 Rxf1+ 40. Rxf1 Kd7 41. h4 Rc3 42. Re1 Ra3 43. h5 g6 44. h6 Rxa4 45. Rd1 Ra2 46. Nd5 Re2 47. e5 fxe5 48. dxe5 Rxe5 49. Nxb6+ Ke8 50. Nc4 Rh5+ 51. Kg2 Bc7 52. Ne3 Rh2+ 53. Kf3 Rxh6 54. Ng4 Rh3+ 55. Ke4 Bd8 56. Ke5 h5 57. Nf2 Re3+ 58. Ne4 a4 59. Rd4 a3 60. Ra4 Kf7 0-1

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.29"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Maletin, Pavel"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "2332"]
[BlackElo "2587"]
[PlyCount "64"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. c4 c5 4. Ne2 Qa5+ 5. Nbc3 Nf6 6. f3 0-0 7. Be3 d6 8. Qd2 Nc6 9. d5 Ne5 10. Ng3 h5 11. Be2 a6 12. 0-0 Bd7 13. a4 Qb4 14. b3 h4 15. Nh1 Nh5 16. Rfc1 f5 17. f4 Ng4 18. Bxg4 fxg4 19. a5 Qxb3 20. Rab1 Qxc4 21. Rxb7 Nxf4 22. Bxf4 Rxf4 23. Ne2 Qxe2 24. Qxe2 Bb5 25. Qd2 Bd4+ 26. Nf2 Raf8 27. Rb8 g3 28. Qxf4 gxf2+ 29. Kh1 Rxb8 30. Qh6 Rf8 31. Qxg6+ Bg7 32. Qe6+ Kh8 0-1

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.28"]
[Round "4"]
[White "Saveliev, Alexei"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "B85"]
[WhiteElo "2081"]
[BlackElo "2332"]
[PlyCount "83"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. f4 Nc6 10. Qe1 Nxd4 11. Bxd4 b5 12. a3 Bb7 13. Qg3 Bc6 14. Bd3 Qd7 15. Rad1 a5 16. Bxf6 Bxf6 17. e5 Be7 18. exd6 Bxd6 19. Bxh7+ Kxh7 20. Qd3+ g6 21. Qxd6 Qb7 22. f5 exf5 23. Qf6 Rh8 24. Rd6 b4 25. Rxc6 bxc3 26. Rxc3 Kg8 27. Rxf5 Re8 28. Rf1 Rh5 29. Rcf3 Re7 30. h3 Rhe5 31. b3 Re2 32. R3f2 Qc7 33. Rxe2 Rxe2 34. c4 a4 35. bxa4 Qxc4 36. Qd8+ Kg7 37. Qf6+ Kg8 38. Qf3 Re7 39. Qa8+ Kg7 40. Qa5 Qd4+ 41. Kh1 Re3 42. Qb5 1/2-1/2

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.27"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Zizlova, Sofia"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2332"]
[BlackElo "2135"]
[PlyCount "71"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Bf4 a6 8. a4 Bg7 9. h3 0-0 10. e3 Re8 11. Nd2 Qc7 12. Nc4 Bf8 13. Be2 Ne4 14. 0-0 Nd7 15. Bf3 Nxc3 16. bxc3 Rb8 17. a5 b5 18. axb6 Nxb6 19. Na5 Bg7 20. Qc2 Bf5 21. e4 Bd7 22. Ra3 Be5 23. Bxe5 Rxe5 24. Bg4 Rbe8 25. Bxd7 Qxd7 26. f3 Ra8 27. c4 Ree8 28. Rb1 Qc7 29. Nc6 Nd7 30. Rab3 a5 31. Rb7 Qc8 32. Qa4 Ne5 33. Ne7+ Rxe7 34. Rxe7 Qd8 35. Rbb7 Kf8 36. f4 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.26"]
[Round "2"]
[White "Fedorov, Alexei"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "2579"]
[BlackElo "2332"]
[PlyCount "63"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Qf3 Qb6 8. a3 Nc6 9. Nxc6 bxc6 10. b3 d5 11. Bb2 Bb7 12. 0-0-0 0-0-0 13. Bd3 Kb8 14. Na4 Qc7 15. c4 d4 16. c5 e5 17. fxe5 Nd7 18. Qxf7 Nxc5 19. Qxc7+ Kxc7 20. Nxc5 Bxc5 21. Rhf1 Rhf8 22. Bc4 Rxf1 23. Rxf1 Rf8 24. Rf3 a5 25. e6 Rxf3 26. gxf3 g5 27. Kc2 Kd6 28. Kd3 Bc8 29. Bxd4 Bxa3 30. Bf6 Bxe6 31. Bxe6 Kxe6 32. Bxg5 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.25"]
[Round "1"]
[White "Biriukov, Oleg V"]
[Black "Dyakov, Vladislav"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2332"]
[BlackElo "1855"]
[PlyCount "67"]
[EventDate "2012.08.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 150 Extra"]
[Source "ChessBase"]
[SourceDate "2012.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2012.10.19"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Bg5 Nbd7 7. f4 c5 8. d5 a6 9. a4 Ne8 10. Nf3 Rb8 11. 0-0 f5 12. exf5 gxf5 13. Bd3 Ndf6 14. Qc2 Nh5 15. Rae1 Rf7 16. g4 Bxc3 17. bxc3 fxg4 18. Nh4 Nef6 19. Re3 b5 20. axb5 axb5 21. Nf5 Bxf5 22. Bxf5 Kh8 23. Be6 Rg7 24. cxb5 Rxb5 25. c4 Rb4 26. Ra3 Qb8 27. Rfa1 Qb7 28. Ra8+ Ng8 29. Bh6 Rg6 30. f5 Rxe6 31. fxe6 Rb2 32. Qxb2+ Qxb2 33. Rxg8+ Kxg8 34. Ra8+ 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.20"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Butuc, Maria"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2339"]
[BlackElo "2172"]
[PlyCount "90"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 a6 5. Nf3 b5 6. c5 g6 7. Ne5 Bg7 8. Be2 0-0 9. f4 Ne4 10. Nxe4 dxe4 11. a4 f6 12. Ng4 Bxg4 13. Bxg4 f5 14. Be2 Nd7 15. Qb3+ Kh8 16. 0-0 Nf6 17. Qe6 Qc7 18. g4 fxg4 19. Bxg4 Nxg4 20. Qxg4 Qc8 21. Qxc8 Raxc8 22. axb5 axb5 23. Ra6 Kg8 24. Bd2 Kf7 25. Rfa1 Ke6 26. Be1 Bf6 27. h4 h6 28. Bg3 Rfd8 29. Kf2 Rd5 30. Rb6 Rh5 31. Raa6 Kd5 32. b3 Bxh4 33. Bxh4 Rxh4 34. Kg3 Rh1 35. Ra7 Rb1 36. Rxe7 Rxb3 37. Re5+ Kc4 38. Rxe4 b4 39. Re6 Rb1 40. Rbxc6 Rxc6 41. Rxc6 b3 42. Rb6 Kd5 43. Kg2 b2 44. Rb4 Re1 45. Rxb2 Rxe3 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.19"]
[Round "8"]
[White "Tsydypov, Zhamsaran"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "2247"]
[BlackElo "2339"]
[PlyCount "57"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. g4 d5 8. exd5 Nxd5 9. Nxd5 Qxd5 10. Bf3 Qa5+ 11. Bd2 Bb4 12. c3 Be7 13. Qb3 Qc7 14. 0-0-0 Nd7 15. Rde1 Nc5 16. Qc2 Bd7 17. Bg2 Bd6 18. Kb1 0-0 19. h4 Bf4 20. Be3 Bxe3 21. fxe3 Rab8 22. g5 Rbd8 23. Rd1 g6 24. h5 Qg3 25. Bf3 Qe5 26. Qf2 Ne4 27. Qh4 Nxg5 28. hxg6 fxg6 29. Rdg1 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.18"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Popov, Valerij"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2339"]
[BlackElo "2550"]
[PlyCount "106"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nd7 4. g3 dxc4 5. Bg2 a6 6. a4 Rb8 7. a5 Ngf6 8. 0-0 Bb4 9. Qa4 Bd6 10. Nbd2 0-0 11. Nxc4 b5 12. axb6 Nxb6 13. Qb3 Bb7 14. Nxd6 cxd6 15. Ne1 Bd5 16. Bxd5 Nbxd5 17. Qa3 Rb4 18. Nc2 Rb6 19. Qd3 Qa8 20. e4 Nc7 21. f3 Rfb8 22. b4 Nb5 23. Bd2 Qb7 24. Rfc1 d5 25. e5 Nd7 26. Rab1 Rc6 27. Na1 Rxc1+ 28. Rxc1 Qb6 29. Be3 Na7 30. Nc2 Rc8 31. f4 Nb5 32. Bd2 Rc4 33. Rb1 f6 34. Kg2 Qc6 35. Rb2 f5 36. Ra2 h6 37. h3 g6 38. g4 Kf7 39. Kf1 Qc8 40. Ke1 Nb8 41. Na3 Nxa3 42. Rxa3 Nc6 43. gxf5 gxf5 44. Qf3 Nxd4 45. Qh5+ Ke7 46. Rg3 Kd7 47. Qxh6 Kc6 48. Qh7 Kb5 49. Qe7 Nc6 50. Qd6 Nxb4 51. Rg6 Re4+ 52. Kf2 Qc2 53. Qd7+ Ka5 0-1

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.17"]
[Round "6"]
[White "Kobzar, Alexandr"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2184"]
[BlackElo "2339"]
[PlyCount "40"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. 0-0 Nge7 7. d3 d5 8. Bb3 0-0 9. Qe1 Na5 10. Nd1 c4 11. exd5 cxb3 12. axb3 b6 13. b4 Nb7 14. dxe6 Bxe6 15. Bd2 Nf5 16. Ne5 Nd4 17. Rc1 Rc8 18. Bc3 Nb5 19. Bd2 Re8 20. Qg3 Nd4 0-1

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.16"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Kaganov, Dmitry"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "2339"]
[BlackElo "2160"]
[PlyCount "52"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Bd3 e6 7. h3 exd5 8. cxd5 0-0 9. Nf3 Na6 10. 0-0 Nc7 11. Re1 Nd7 12. Bf1 a6 13. a4 Rb8 14. Bf4 Ne5 15. Nxe5 Bxe5 16. Bxe5 dxe5 17. a5 Ne8 18. Qd2 Bd7 19. Nb1 Rc8 20. Na3 Nd6 21. Nc4 Qe7 22. Nxd6 Qxd6 23. Bc4 Kg7 24. Ra3 Rb8 25. Qe2 b5 26. axb6 Qxb6 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.15"]
[Round "4"]
[White "Nikitinyh, Boris Aleksandrovic"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2234"]
[BlackElo "2339"]
[PlyCount "83"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Nxc6 bxc6 7. 0-0 g6 8. c4 Bg7 9. Nc3 0-0 10. h3 Nd7 11. Bd2 Nc5 12. Bc2 f5 13. exf5 gxf5 14. Qh5 e5 15. b4 Nb7 16. Rad1 Be6 17. Bb3 Qe8 18. Qxe8 Rfxe8 19. Rfe1 Kf7 20. f3 f4 21. Ne4 h6 22. Bc3 Red8 23. Re2 a5 24. bxa5 Bf8 25. Red2 Be7 26. Bb4 c5 27. Bc3 Bf5 28. Ba4 Bxe4 29. fxe4 Nxa5 30. Bb5 Rdc8 31. Bxa5 Rxa5 32. a4 Rg8 33. Kf1 Ke6 34. Rd3 h5 35. Rb1 Rg3 36. Rxg3 fxg3 37. Kg1 Ra8 38. Rf1 Bg5 39. Rf5 Rg8 40. Bc6 Ke7 41. Bd5 Rg7 42. a5 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.14"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Petrova, Irina"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2339"]
[BlackElo "2125"]
[PlyCount "83"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. g3 d6 8. Bg2 Bg7 9. Nf3 Nbd7 10. Rb1 0-0 11. 0-0 Qa5 12. Bd2 Rfb8 13. Qc2 Qc7 14. b3 Nb6 15. Nh4 Qb7 16. Rfd1 Ne8 17. e4 Nc7 18. a4 Nd7 19. Nf3 Qc8 20. Bh3 Rb7 21. Rdc1 Rab8 22. Na2 Qe8 23. b4 cxb4 24. Nxb4 Nc5 25. Nxa6 N7xa6 26. Rxb7 Rxb7 27. a5 Qb8 28. Bf1 Rb2 29. Qc4 Bf6 30. Kg2 Qb7 31. Rc2 Kg7 32. Ne1 h5 33. f3 Rb3 34. Nd3 Ra3 35. Nxc5 Nxc5 36. Ra2 Rxa2 37. Qxa2 h4 38. a6 Qa7 39. Bc3 hxg3 40. hxg3 Qa8 41. a7 g5 42. Bb5 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.13"]
[Round "2"]
[White "Dvoirys, Semen I"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2554"]
[BlackElo "2339"]
[PlyCount "107"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bd3 Nc6 5. Bc2 Bg4 6. d3 e6 7. Nbd2 d5 8. h3 Bh5 9. Qe2 Qc7 10. g4 Bg6 11. h4 h6 12. Rg1 Bd6 13. Ba4 dxe4 14. dxe4 Nd7 15. Nc4 Nb6 16. Nxd6+ Qxd6 17. Bc2 0-0-0 18. h5 Bh7 19. Be3 f6 20. Qb5 Nd7 21. Nd2 a6 22. Qe2 Nde5 23. 0-0-0 Nd3+ 24. Kb1 b5 25. Nb3 c4 26. Nc5 Nce5 27. f4 Qc6 28. fxe5 Nxc5 29. Bxc5 Qxc5 30. exf6 gxf6 31. Qf3 Qe5 32. Qe3 Kb7 33. a4 bxa4 34. Rd4 Rxd4 35. cxd4 Qb5 36. Ka1 Rb8 37. Qxh6 Ka8 38. Rb1 Qb4 39. Qe3 Rb5 40. Qc3 a5 41. Rf1 Rg5 42. Rxf6 Rxg4 43. Rxe6 Rg1+ 44. Bb1 a3 45. Qxa3 Qxa3+ 46. bxa3 c3 47. Re8+ Kb7 48. Ka2 Bg8+ 49. d5 a4 50. Bd3 Rg3 51. h6 Kb6 52. Rc8 Rxd3 53. Rxg8 Rh3 54. Rc8 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.12"]
[Round "1"]
[White "Biriukov, Oleg V"]
[Black "Zheleznaykov, Peter"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2339"]
[BlackElo "1962"]
[PlyCount "89"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 c5 6. 0-0 Nc6 7. Ne5 Nxe5 8. dxe5 Qxd1 9. Rxd1 Nd5 10. Na3 Bd7 11. Nxc4 Bc6 12. Na5 Be7 13. Nxc6 bxc6 14. Bd2 0-0 15. Rac1 Rab8 16. b3 h6 17. Bf1 Rfd8 18. Ba5 Re8 19. e4 Nb6 20. Bd2 Red8 21. Be3 Rxd1 22. Rxd1 Kf8 23. Rc1 Nd7 24. f4 Ke8 25. Kf2 Bf8 26. Be2 Rb6 27. h4 Rb4 28. Kf3 Rb8 29. Bc4 Be7 30. Ke2 Bf8 31. g4 Rd8 32. g5 hxg5 33. hxg5 g6 34. Rh1 Bg7 35. Ba6 Rb8 36. Rc1 Bf8 37. Bd2 Bg7 38. Ba5 Bf8 39. Bc7 Rb4 40. Kf3 Rd4 41. Bb7 Rd3+ 42. Ke2 Rd4 43. Bxc6 Be7 44. Ba5 Kf8 45. Bc3 1-0

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.30"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "De la Villa Garcia, Jesus Maria"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2339"]
[BlackElo "2490"]
[PlyCount "64"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Ba6 8. Qf3 Nc6 9. e3 Na5 10. Rc1 c5 11. d5 Rc8 12. h4 exd5 13. cxd5 Bxf1 14. Kxf1 Nb3 15. Rd1 Re8 16. Bxf6 Qxf6 17. Qxf6 gxf6 18. Ne2 Re5 19. Rh3 c4 20. g4 b5 21. Nc3 Rc5 22. f4 Re8 23. e4 d6 24. Re3 Kf8 25. Kf2 a5 26. Kf3 b4 27. axb4 axb4 28. Na2 Rb5 29. Nc1 Na1 30. Na2 Nb3 31. Nc1 Na1 32. Na2 Nb3 1/2-1/2

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.29"]
[Round "8"]
[White "Llaneza Vega, Marcos"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2465"]
[BlackElo "2339"]
[PlyCount "55"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. 0-0 e5 6. d3 Nge7 7. Bg5 h6 8. Be3 Nd4 9. a4 Nxb5 10. axb5 b6 11. Nd2 d5 12. exd5 Nxd5 13. Nxd5 Qxd5 14. Qe2 0-0 15. Ra3 Bb7 16. f3 Qd7 17. c4 a6 18. bxa6 Rxa6 19. Rxa6 Bxa6 20. Ne4 f5 21. Nc3 Bb7 22. Ra1 Bc6 23. Qd2 Kh7 24. Ra6 Qb7 25. Ra3 Ra8 26. Qc2 Rd8 27. Nb5 Ra8 28. Qb3 1/2-1/2

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.28"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Looshnikov, Nikolai"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2339"]
[BlackElo "2512"]
[PlyCount "36"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 Nbd7 7. 0-0 e5 8. Qc2 Nh5 9. Bg5 f6 10. Be3 Nf4 11. Bxf4 exf4 12. Rad1 Kh8 13. b4 a5 14. a3 axb4 15. axb4 f5 16. e5 dxe5 17. dxe5 Re8 18. Nb5 Re7 1/2-1/2

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.27"]
[Round "6"]
[White "Bente, Bjoern"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "2226"]
[BlackElo "2339"]
[PlyCount "42"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. Bg2 dxc4 5. 0-0 Be6 6. Ng5 Bf5 7. Na3 b5 8. Nf3 Be4 9. b3 cxb3 10. axb3 e6 11. d3 Bxf3 12. Bxf3 Nd5 13. Bb2 Bxa3 14. Bxa3 Ne7 15. Qc1 0-0 16. Bxe7 Qxe7 17. Bxc6 Nxc6 18. Qxc6 Qb4 19. Rfc1 Qxb3 20. Rcb1 Rac8 21. Qxb5 Rc1+ 0-1

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.26"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Pfretzschner, Roland"]
[Result "1-0"]
[ECO "E34"]
[WhiteElo "2339"]
[BlackElo "2240"]
[PlyCount "81"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. e3 c5 7. Bd2 Bxc3 8. Bxc3 cxd4 9. Bxd4 Nc6 10. Bc3 0-0 11. Nf3 Rd8 12. Be2 Qe4 13. Rc1 Qxc2 14. Rxc2 Ne4 15. Ne5 Bd7 16. Nxc6 Bxc6 17. Bd4 Nd6 18. 0-0 Bb5 19. Bxb5 Nxb5 20. Be5 f6 21. Bg3 e5 22. f4 exf4 23. Bxf4 Rd3 24. a4 Nd6 25. Rc7 Rd8 26. Bxd6 R8xd6 27. Rxb7 Rc6 28. h3 Rc2 29. Rf3 Rdd2 30. Rg3 g5 31. h4 Rd1+ 32. Kh2 Rc4 33. hxg5 f5 34. g6 Rh4+ 35. Rh3 Rxh3+ 36. Kxh3 hxg6 37. Rxa7 Rd3 38. b4 Rxe3+ 39. Kh2 Kf8 40. a5 Ke8 41. a6 1-0

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.25"]
[Round "4"]
[White "Sazonova, Elena"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "2131"]
[BlackElo "2339"]
[PlyCount "65"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Qf3 Qb6 8. a3 Nc6 9. Nxc6 bxc6 10. Bd3 d5 11. b4 Qd4 12. Bd2 a5 13. Qf2 Qxf2+ 14. Kxf2 axb4 15. axb4 Rxa1 16. Rxa1 Bxb4 17. Ra8 0-0 18. e5 Bc5+ 19. Kf3 Nd7 20. Na4 Be7 21. Ra7 Re8 22. Rc7 Nb8 23. Nb6 Ba6 24. Bxa6 Bd8 25. Rc8 Nxa6 26. Rxc6 Nb8 27. Rc8 Na6 28. Nd7 f5 29. Ba5 Kf7 30. Bxd8 Nb4 31. Nc5 Kg6 32. c3 Na2 33. Nb7 1-0

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.24"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Wagener, Claude"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2339"]
[BlackElo "2232"]
[PlyCount "47"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. Qa4+ Bd7 5. Qb3 dxc4 6. Qxc4 a6 7. e4 b5 8. Qe2 c5 9. e5 Nh5 10. d4 Nc6 11. d5 Nd4 12. Nxd4 cxd4 13. Ne4 Bc8 14. g4 Ng7 15. Bg2 Bb7 16. Bg5 Qa5+ 17. Bd2 Qb6 18. 0-0 Rd8 19. Rfe1 h5 20. Nf6+ exf6 21. exf6+ Kd7 22. fxg7 Bxg7 23. Qe7+ Kc8 24. Bf4 1-0

[Event "Pardubice Czech op 22nd"]
[Site "Pardubice"]
[Date "2011.07.23"]
[Round "2"]
[White "Kravtsiv, Martyn"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "2571"]
[BlackElo "2339"]
[PlyCount "57"]
[EventDate "2011.07.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. Bb3 d6 9. f3 Nxd4 10. Bxd4 Qa5 11. 0-0 Be6 12. Kh1 Nd7 13. Bxg7 Kxg7 14. f4 Nf6 15. Qf3 Bxb3 16. axb3 Qc5 17. Rae1 b5 18. e5 Ng8 19. Qd3 b4 20. Ne4 Qb6 21. exd6 Rfd8 22. f5 exd6 23. Qd5 f6 24. fxg6 hxg6 25. Nxf6 Rf8 26. Nxg8 Rxf1+ 27. Rxf1 Rxg8 28. Qf7+ Kh8 29. Rf3 1-0

[Event "Pardubice op rap 22nd"]
[Site "Pardubice"]
[Date "2011.07.21"]
[Round "4"]
[White "Biriukov, Oleg V"]
[Black "Gavrilov, Alexei"]
[Result "0-1"]
[ECO "C08"]
[WhiteElo "2339"]
[BlackElo "2481"]
[PlyCount "116"]
[EventDate "2011.07.20"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 e6 2. e4 d5 3. Nd2 c5 4. exd5 exd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. Ne2 Ngf6 8. 0-0 Bd6 9. dxc5 Nxc5 10. Nb3 Ne6 11. Ned4 0-0 12. Nf5 Bc7 13. Be3 Re8 14. Qf3 Be5 15. c3 Qc7 16. Kh1 Ne4 17. Rad1 Rad8 18. Bd4 Nxd4 19. Nbxd4 Qb6 20. Nb3 Qa6 21. Ra1 Re6 22. Nfd4 Rh6 23. g3 Bxd4 24. cxd4 Rf6 25. Qe3 Re6 26. Qf3 b6 27. Kg2 Rde8 28. Qd1 Qb5 29. Rc1 h6 30. Rc2 Qa4 31. Nc1 Ng5 32. h4 Ne4 33. a3 Nd6 34. Na2 Nf5 35. Nc3 Qxd4 36. Qxd4 Nxd4 37. Rd2 Ne2 38. Nxd5 Re5 39. Kf3 Re4 40. Ne3 Nd4+ 41. Kg2 g6 42. Rfd1 Nb3 43. Rd7 a5 44. R7d6 R4e6 45. Rxe6 Rxe6 46. Rd3 a4 47. Kf3 Kg7 48. Rd5 Rc6 49. Rd1 h5 50. Rd5 Re6 51. Rd1 Re5 52. Rd5 Re6 53. Rd1 Nc5 54. Rd4 Kf8 55. Rd1 Rf6+ 56. Ke2 Ne4 57. Nd5 Rxf2+ 58. Ke3 f5 0-1

[Event "Pardubice op rap 22nd"]
[Site "Pardubice"]
[Date "2011.07.20"]
[Round "3"]
[White "Stupak, Kirill"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2530"]
[BlackElo "2339"]
[PlyCount "94"]
[EventDate "2011.07.20"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. g3 d5 3. Nf3 c6 4. Bg2 Bf5 5. 0-0 h6 6. c4 e6 7. Nc3 Nbd7 8. Qb3 Qb6 9. c5 Qa6 10. Bf4 Be7 11. Rfe1 b6 12. Bf1 Qc8 13. Bd6 Bxd6 14. cxd6 Qb8 15. Qa3 b5 16. Nb1 Ne4 17. Rc1 Qxd6 18. Qa6 0-0 19. Rxc6 Qb4 20. Nc3 Nb8 21. a3 Qxb2 22. Rb1 Qxc3 23. Rxc3 Nxa6 24. Rc6 Nb8 25. Rc7 Nd6 26. Rbc1 Nc4 27. Rc3 a5 28. Rb3 Na6 29. Rc6 b4 30. e3 bxa3 31. Bxc4 a2 32. Ra3 dxc4 33. Rxc4 Nb4 34. Nd2 Rfc8 35. Rc5 Rxc5 36. dxc5 Rd8 37. Nb3 Bc2 38. Nd4 Bb1 39. f4 Rc8 40. Nb3 Bc2 41. Nc1 Rxc5 42. Nxa2 Nxa2 43. Rxa2 a4 44. Kf2 Bb3 45. Ra1 Rc2+ 46. Kf3 f5 47. g4 Kf7 0-1

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.11.05"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Shaydullina, Sandugach"]
[Result "1-0"]
[ECO "E35"]
[WhiteElo "2345"]
[BlackElo "2175"]
[PlyCount "83"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 6. Bg5 c5 7. dxc5 h6 8. Bh4 g5 9. Bg3 Ne4 10. e3 Bf5 11. Bd3 Qa5 12. Nge2 Nc6 13. 0-0 Bxc3 14. bxc3 Qxc5 15. Rab1 Qe7 16. Rfe1 h5 17. Nd4 Bg6 18. f3 Nxg3 19. Bxg6 Ne4 20. fxe4 fxg6 21. exd5 Ne5 22. Qa4+ Kf8 23. Ne6+ Kg8 24. Qe4 Qd6 25. Rxb7 Rh7 26. Rxh7 Kxh7 27. Nxg5+ Kg8 28. Nf3 Re8 29. Kh1 Re7 30. Qd4 Ng4 31. e4 Rf7 32. e5 Qf8 33. e6 Rxf3 34. gxf3 Qxf3+ 35. Kg1 Qh3 36. Re2 Nxh2 37. Rxh2 Qg3+ 38. Rg2 Qe1+ 39. Kh2 Kh7 40. Qf4 Qxc3 41. Qf7+ Kh8 42. Qe8+ 1-0

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.11.04"]
[Round "8"]
[White "Panjkov, Oleg"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "2065"]
[BlackElo "2345"]
[PlyCount "110"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Bd6 5. 0-0 0-0 6. a4 a6 7. Bc4 Bc5 8. d3 h6 9. Be3 Bxe3 10. fxe3 d6 11. Qe1 Nb4 12. Rc1 c6 13. Ne2 a5 14. c3 Na6 15. Bxa6 Rxa6 16. Ng3 Qe7 17. h3 Bd7 18. Ra1 g6 19. Nd2 Kg7 20. Rf2 h5 21. Nf3 Nh7 22. Qd2 Raa8 23. Ne2 d5 24. exd5 cxd5 25. e4 dxe4 26. dxe4 Bc6 27. Qe3 Nf6 28. Ng5 Nd7 29. c4 f6 30. Nf3 Qc5 31. Qxc5 Nxc5 32. Nc3 Nxe4 33. Nxe4 Bxe4 34. Rd2 Rfd8 35. Rad1 Rxd2 36. Rxd2 Bc6 37. b3 Kf7 38. Nh4 Be8 39. g4 hxg4 40. hxg4 Ke6 41. g5 f5 42. c5 e4 43. Rd6+ Ke5 44. Nxg6+ Bxg6 45. Rxg6 Kf4 46. Rg7 Rc8 47. g6 Rxc5 48. Rxb7 Kg3 49. Kf1 Kf3 50. Kg1 Rc1+ 51. Kh2 Rc6 52. Rf7 f4 53. g7 Rg6 54. b4 e3 55. bxa5 e2 0-1

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.11.03"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Sukhareva, Evgenia"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2345"]
[BlackElo "2176"]
[PlyCount "78"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 Na6 9. Ba5 b6 10. Qd6 Bd7 11. Bc3 Nh6 12. 0-0-0 0-0-0 13. Qa3 Kb7 14. Bxg7 e5 15. Rxd7+ Rxd7 16. Bxh8 Nf5 17. Qf3 Qd4 18. Qc3 Qxf2 19. Bxe5 Nc5 20. Bg3 Nxg3 21. Qxg3 Qd4 22. Qc3 Qf2 23. Qg3 Qd4 24. Qc3 Qf4+ 25. Kb1 Ne4 26. Qh3 Rd2 27. Nf3 Rxe2 28. Qd7+ Qc7 29. Rd1 Nc5 30. Qf5 Qe7 31. g4 Rf2 32. Re1 Qxe1+ 33. Nxe1 Rxf5 34. gxf5 Kc7 35. Nf3 Kd6 36. Kc2 Nd7 37. Kc3 Ke7 38. b4 Kf6 39. Kd3 Ne5+ 0-1

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.11.02"]
[Round "6"]
[White "Mozharov, Mikhail"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2494"]
[BlackElo "2345"]
[PlyCount "49"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 d5 6. a3 Be7 7. cxd5 Nxd5 8. Nxd5 exd5 9. Ng3 a5 10. Bd3 Bd6 11. Qf3 c6 12. e4 dxe4 13. Nxe4 Be7 14. 0-0 Nd7 15. Re1 Nb6 16. Qh5 g6 17. Qh6 Qxd4 18. Be3 Qxd3 19. Bxb6 Qd5 20. Bc5 Qxc5 21. Nxc5 Bxc5 22. Re4 f6 23. Rae1 Bf5 24. Re7 Bxe7 25. Rxe7 1-0

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.11.01"]
[Round "5"]
[White "Biriukov, Oleg V"]
[Black "Balaian, Alina"]
[Result "1-0"]
[ECO "E98"]
[WhiteElo "2345"]
[BlackElo "2157"]
[PlyCount "81"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 f5 11. Bd2 f4 12. Rc1 g5 13. b4 Nf6 14. h3 Ng6 15. c5 Nh4 16. Ne1 Qd7 17. Nf3 Nxg2 18. Nxg5 Qe8 19. Kxg2 Qg6 20. Rh1 Qxg5+ 21. Kf1 Qh4 22. Bf3 Bxh3+ 23. Ke2 Ng4 24. Qg1 h5 25. Be1 Rf6 26. Kd3 Rg6 27. Kc2 Kh7 28. Kb1 Bh6 29. Rd1 Rag8 30. Bg2 Ne3 31. fxe3 Qg4 32. Rxh3 Qxh3 33. Bxh3 Rxg1 34. Bf5+ Kh8 35. exf4 Bg7 36. fxe5 Rh1 37. exd6 cxd6 38. c6 bxc6 39. dxc6 Rxe1 40. Rxe1 Bxc3 41. Rc1 1-0

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.10.31"]
[Round "4"]
[White "Yudin, Sergei"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2521"]
[BlackElo "2345"]
[PlyCount "41"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e6 6. d4 Nxd4 7. Nxd4 cxd4 8. Nb5 Qb6 9. a4 a6 10. a5 Qc5 11. b4 Qxb4+ 12. Bd2 Qc5 13. Na3 Ne7 14. 0-0 Nc6 15. Qa4 0-0 16. Rab1 d6 17. Rb6 Bf6 18. Bxc6 bxc6 19. Bb4 Qg5 20. Qxc6 Ra7 21. Rb8 1-0

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.10.30"]
[Round "3"]
[White "Biriukov, Oleg V"]
[Black "Zamyshlyaev, Anatoly"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2345"]
[BlackElo "2058"]
[PlyCount "90"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 e6 2. c4 d5 3. Nf3 Nf6 4. g3 c5 5. cxd5 exd5 6. Bg2 Be7 7. 0-0 0-0 8. Nc3 Nc6 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Bg4 12. Qa4 Ne5 13. Rad1 a6 14. Qb3 Nc4 15. Bf4 Na5 16. Qc2 Rc8 17. h3 Bh5 18. Qb1 Bg6 19. Nf5 d4 20. e4 Bxf5 21. exf5 Qb6 22. Ne2 Rfd8 23. Be5 Qb5 24. Bxf6 Bxf6 25. Nf4 Nc4 26. a4 Qxb2 27. Bxb7 Rc7 28. Bxa6 Qxb1 29. Rxb1 Nd2 30. Rbc1 Rxc1 31. Rxc1 Bg5 32. Rc8 Rxc8 33. Bxc8 Bxf4 34. gxf4 Kf8 35. a5 d3 36. a6 Nf3+ 37. Kf1 Nd4 38. Ke1 Nc6 39. f6 gxf6 40. Kd2 Ke7 41. Kxd3 Kd6 42. Bb7 Na7 43. Kc4 f5 44. Bd5 f6 45. Bb7 Kc7 1-0

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.10.29"]
[Round "2"]
[White "Szabo, Krisztian"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2528"]
[BlackElo "2345"]
[PlyCount "60"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 b5 8. Qd2 Nbd7 9. g4 h6 10. 0-0-0 Bb7 11. h4 b4 12. Na4 Qa5 13. b3 Nc5 14. a3 Nxa4 15. axb4 Qc7 16. bxa4 Nd7 17. a5 d5 18. Bf4 e5 19. Bg3 Rb8 20. g5 Ba8 21. b5 hxg5 22. exd5 gxh4 23. Nc6 Bxc6 24. dxc6 Qxc6 25. Qe3 Qc5 26. Qxc5 Bxc5 27. b6 Be3+ 28. Kb1 Rh6 29. Rxh4 Nxb6 30. axb6 Rhxb6+ 1-0

[Event "Chigorin Memorial 18th"]
[Site "St Petersburg"]
[Date "2010.10.28"]
[Round "1"]
[White "Biriukov, Oleg V"]
[Black "Gusev, Boris"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2345"]
[BlackElo "1759"]
[PlyCount "23"]
[EventDate "2010.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2011"]
[Source "ChessBase"]
[SourceDate "2010.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Be7 7. Nf3 0-0 8. Bd3 b6 9. e5 Bb7 10. h4 c5 11. Bxh7+ Kxh7 12. Ng5+ 1-0

[Event "Pardubice Czech op-A 21st"]
[Site "Pardubice"]
[Date "2010.07.31"]
[Round "9"]
[White "Kutynec, Vladimir"]
[Black "Biriukov, Oleg V"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "2257"]
[BlackElo "2359"]
[PlyCount "84"]
[EventDate "2010.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. b4 f6 4. e3 e5 5. exd4 e4 6. Qe2 Qe7 7. Ng1 Nc6 8. Qe3 Nxb4 9. Qb3 Nh6 10. a3 Nd3+ 11. Bxd3 exd3+ 12. Kf1 Bg4 13. Qxd3 0-0-0 14. Nc3 Bf5 15. Qe3 Ng4 16. Qxe7 Bxe7 17. h3 Bd3+ 18. Ke1 Nh6 19. Nd5 Rhe8 20. Ne3 f5 21. g3 g5 22. h4 gxh4 23. Bb2 Bf6 24. Rc1 c5 25. Kd1 cxd4 26. Nd5 Ng4 27. Nh3 Bh8 28. Ndf4 Be4 29. f3 Bxf3+ 30. Kc2 d3+ 31. Kb3 Bxb2 32. Kxb2 Bxh1 33. Rxh1 hxg3 34. Rg1 Nf2 35. Rxg3 Re2 36. Nxf2 Rxd2+ 37. Kc3 Rc2+ 38. Kb3 Rxf2 39. Nxd3 f4 40. Rh3 Rf1 41. Kc2 f3 42. Rxh7 Rf8 0-1

[Event "Pardubice Czech op-A 21st"]
[Site "Pardubice"]
[Date "2010.07.30"]
[Round "8"]
[White "Biriukov, Oleg V"]
[Black "Orlov, Evgeny"]
[Result "1-0"]
[ECO "A86"]
[WhiteElo "2359"]
[BlackElo "2214"]
[PlyCount "155"]
[EventDate "2010.07.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. Nh3 0-0 7. d5 c6 8. 0-0 e5 9. dxe6 Bxe6 10. Qb3 Qe7 11. Ng5 Bc8 12. e4 Na6 13. c5+ d5 14. exd5 Nxc5 15. Qc4 Kh8 16. Be3 Ncd7 17. dxc6 bxc6 18. Qxc6 Rb8 19. Bxa7 Rxb2 20. Bd4 Bb7 21. Qe6 Qb4 22. Rfd1 Bxg2 23. Kxg2 Qb7+ 24. Kg1 h6 25. Nf7+ Kh7 26. Nd6 Qf3 27. Qe7 h5 28. h4 Qg4 29. Nce4 Re2 30. Ng5+ Kg8 31. Ne6 Bh8 32. Re1 f4 33. Rxe2 Qxe2 34. Rf1 fxg3 35. fxg3 Qxf1+ 36. Kxf1 Nd5+ 37. Qxf8+ Nxf8 38. Bxh8 Nxe6 39. Be5 Kf8 40. Ke2 Ke7 41. Ne4 Nd8 42. Ng5 Nc6 43. Bb2 Kd6 44. Kd3 Nb6 45. Ke4 Nc4 46. Bc3 Nb6 47. Nf3 Nd7 48. Kf4 Nc5 49. Nd4 Ne7 50. Kf3 Kd5 51. Ne2 Kc4 52. Bf6 Nd5 53. Be5 Nd3 54. Bd6 Ne1+ 55. Ke4 Nd3 56. Nf4 Nf6+ 57. Ke3 Ne1 58. Ke2 Nc2 59. Nxg6 Nd4+ 60. Kf1 Nf5 61. Bf4 Kd5 62. Kg2 Ke4 63. a4 Nd5 64. a5 Nb4 65. Bd2 Na6 66. Nf4 Ng7 67. Bc3 Nf5 68. Nxh5 Ne3+ 69. Kh3 Kf5 70. Ng7+ Kg6 71. g4 Nd5 72. h5+ Kh6 73. Nf5+ Kg5 74. Bd2+ Kf6 75. Kg3 Nc5 76. Kf3 Ke5 77. h6 Kf6 78. h7 1-0

[Event "Pardubice op rap 21st"]
[Site "Pardubice"]
[Date "2010.07.21"]
[Round "2"]
[White "Stocek, Jiri"]
[Black "Biriukov, Oleg V"]
[Result "1-0"]
[ECO "E13"]
[WhiteElo "2587"]
[BlackElo "2359"]
[PlyCount "63"]
[EventDate "2010.07.21"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "CZE"]
[SourceTitle "CBM 137 Extra"]
[Source "ChessBase"]
[SourceDate "2010.09.01"]
[SourceVersion "1"]
[SourceVersionDate "2010.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 b6 5. Bg5 h6 6. Bh4 g5 7. Bg3 Ne4 8. Qc2 Bb7 9. e3 d6 10. Bd3 Bxc3+ 11. bxc3 f5 12. c5 bxc5 13. Qb3 Qc8 14. Bxe4 fxe4 15. Nd2 cxd4 16. cxd4 Bd5 17. Qc2 Qb7 18. 0-0 Qc6 19. Qd1 Nd7 20. Rc1 Qb7 21. Qc2 Ke7 22. f3 exf3 23. gxf3 e5 24. dxe5 Nxe5 25. Bxe5 dxe5 26. Qf5 Rae8 27. Qxe5+ Kd8 28. Qd4 Kc8 29. Rb1 Qa8 30. e4 Bb7 31. Rfc1 Rh7 32. Nc4 1-0

[Event "Chigorin Memorial 17th"]
[Site "St Petersburg"]
[Date "2009.10.24"]
[Round "9"]
[White "Biriukov, Oleg V"]
[Black "Kovalenko, Vladimir1"]
[Result "1-0"]
[ECO "D16"]
[WhiteElo "2362"]
[BlackElo "2153"]
[PlyCount "33"]
[EventDate "2009.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[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 Qh4+ 10. g3 Qf6 11. dxe5 Nxe5 12. Nxe5 Qxe5 13. g4 Bc5 14. gxh5 Qxh5 15. Bf4 0-0 16. Bc4 Rd8 17. Qxd8+ 1-0

[Event "Chigorin Memorial 17th"]
[Site "St Petersburg"]
[Date "2009.10.23"]
[Round "8"]
[White "Nuretdinov, Igor"]
[Black "Biriukov, Oleg V"]
[Result "1/2-1/2"]
[ECO "E49"]
[WhiteElo "2182"]
[BlackElo "2362"]
[PlyCount "110"]
[EventDate "2009.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 dxc4 8. Bxc4 c5 9. Ne2 Nc6 10. 0-0 e5 11. Bb2 Qe7 12. Qc2 b6 13. Ng3 Na5 14. Bd3 c4 15. Be2 Re8 16. Rae1 e4 17. f3 Bb7 18. Bc1 g6 19. Bd1 h5 20. Nh1 Bd5 21. Qf2 Nh7 22. h4 Qc7 23. Ng3 Nf6 24. Ne2 Bc6 25. Bc2 Re7 26. Nf4 Rae8 27. Qg3 exf3 28. gxf3 Nd5 29. Nxh5 Qxg3+ 30. Nxg3 Nxe3 31. Bxe3 Rxe3 32. Ne4 Rxe1 33. Rxe1 Kg7 34. Kf2 Nb7 35. Rd1 Rd8 36. h5 gxh5 37. Rg1+ Kf8 38. Rg5 Rd5 39. Rxd5 Bxd5 40. Nf6 Be6 41. Nxh5 Nd6 42. Ba4 Ke7 43. Ke3 Bd7 44. Bxd7 Kxd7 45. Nf6+ Kc6 46. Ne4 Nb5 47. a4 Nc7 48. Kf4 b5 49. axb5+ Nxb5 50. Ke5 Nc7 51. Nd2 Nd5 52. Nxc4 Nxc3 53. Ne3 a5 54. d5+ Kd7 55. Kd4 Nb5+ 1/2-1/2

[Event "Chigorin Memorial 17th"]
[Site "St Petersburg"]
[Date "2009.10.22"]
[Round "7"]
[White "Biriukov, Oleg V"]
[Black "Bratus, Petr P"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2362"]
[BlackElo "2189"]
[PlyCount "149"]
[EventDate "2009.10.16"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 132 Extra"]
[Source "ChessBase"]
[SourceDate "2009.11.03"]
[SourceVersion "1"]
[SourceVersionDate "2009.11.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Qc2 Nbd7 8. Bd3 Nf8 9. Nf3 Ne6 10. Bh4 g6 11. 0-0 Ng7 12. Rab1 Bf5 13. Bxf6 Bxf6 14. b4 a6 15. a4 0-0 16. b5 axb5 17. axb5 Ra3 18. Bxf5 Nxf5 19. bxc6 bxc6 20. Na4 Qd6 21. Rb6 Rc8 22. Nc5 Ra7 23. Rfb1 Kg7 24. g3 h5 25. Nd3 Bd8 26. Rb7 Rxb7 27. Rxb7 Rc7 28. Rb6 Bf6 29. Qc3 Ne7 30. Ra6 Qe6 31. h4 Nf5 32. Nf4 Qc8 33. Rb6 Ne7 34. Kg2 Rb7 35. Rxb7 Qxb7 36. Ne5 Qc7 37. Ned3 Qd7 38. Nb4 Qd6 39. Nfd3 Kg8 40. Nc5 Kg7 41. Qc2 Qb8 42. Ncd3 Qc8 43. Qe2 Nf5 44. Qc2 Ne7 45. Qd1 Qf5 46. Qf3 Qc8 47. Qf4 Nf5 48. Nc5 Be7 49. Nbd3 Bd6 50. Qf3 Qe8 51. Nf4 Bxc5 52. dxc5 Qe4 53. Qxe4 dxe4 54. Kf1 Kf6 55. Ke2 Ng7 56. Kd2 Ne6 57. Kc3 Nxc5 58. Kd4 Nd3 59. Nxd3 exd3 60. Kxd3 Ke5 61. f3 Kd5 62. Kc3 Kc5 63. Kb3 Kb5 64. Kc3 c5 65. g4 c4 66. gxh5 gxh5 67. e4 Kc5 68. f4 Kb5 69. e5 Kc5 70. f5 Kd5 71. e6 fxe6 72. f6 Kd6 73. Kxc4 e5 74. f7 Ke7 75. Kd5 1/2-1/2

