[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.13"]
[Round "9"]
[White "Lazarev, Alexander A"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1945"]
[BlackElo "2156"]
[PlyCount "106"]
[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 d5 2. exd5 Qxd5 3. Nf3 Bg4 4. Nc3 Qd8 5. h3 Bh5 6. Bc4 e6 7. Ne4 Nd7 8. Ng3 Bg6 9. d4 Bd6 10. Bg5 Ngf6 11. Bh4 c6 12. c3 Qb6 13. Qe2 0-0 14. 0-0 Bf4 15. Ng5 e5 16. N5e4 Nxe4 17. Nxe4 exd4 18. Rad1 Rae8 19. Rxd4 c5 20. Rxd7 Rxe4 21. Qd3 Rd4 22. Rxf7 Rxf7 23. Bxf7+ Kxf7 24. Qf3 Re4 25. Bg5 Qd6 26. g3 Qe6 27. Kh2 Bf5 28. gxf4 h6 29. Bd8 Qd6 30. Rd1 Qxf4+ 31. Qxf4 Rxf4 32. Kg3 g5 33. Re1 Be6 34. Bc7 Rh4 35. Rh1 Bxa2 36. Ra1 Be6 37. Rxa7 Rxh3+ 38. Kg2 Rd3 39. Bb6 Bd5+ 40. Kh2 c4 41. Be3 Kg6 42. Ra1 Kf5 43. Rg1 Bf3 44. Rg3 g4 45. Rg1 h5 46. Kg3 h4+ 47. Kh2 Be4 48. Ra1 g3+ 49. Kg1 Rxe3 50. fxe3 h3 51. Rf1+ Kg5 52. Rf4 h2+ 53. Kf1 h1Q+ 0-1

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.12"]
[Round "8"]
[White "Tkachev, Ivan"]
[Black "Leontiev, Aleksandr V"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2156"]
[BlackElo "2310"]
[PlyCount "130"]
[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. Nf3 b6 4. Nc3 Bb4 5. Qc2 Bb7 6. Bg5 0-0 7. g3 h6 8. Bd2 Nc6 9. e4 Nxd4 10. Nxd4 Bxc3 11. Nf3 Bxd2+ 12. Nxd2 Nxe4 13. Nxe4 f5 14. Bg2 fxe4 15. Bxe4 Bxe4 16. Qxe4 Qf6 17. Qe2 Qf3 18. Qxf3 Rxf3 19. Rd1 d6 20. Ke2 Raf8 21. Rhf1 g5 22. Rd3 Rxd3 23. Kxd3 g4 24. Ke3 Rf3+ 25. Ke2 Rf5 26. Rh1 Re5+ 27. Kd2 Rh5 28. Ke3 Kf7 29. f4 Kf6 30. b3 a5 31. a4 Kf5 32. h4 gxh3 33. Kf3 Kg6 34. g4 Rc5 35. Ke4 h5 36. Rxh3 hxg4 37. Rh4 d5+ 38. cxd5 exd5+ 39. Ke5 d4+ 40. Ke4 Rc3 41. Rxg4+ Kf6 42. f5 Re3+ 43. Kf4 Rxb3 44. Rg6+ Kf7 45. Rh6 c5 46. Rh7+ Kf6 47. Rh6+ Ke7 48. f6+ Ke6 49. Rg6 Re3 50. f7+ Kxf7 51. Rxb6 Re6 52. Rb5 c4 53. Rxa5 Ke7 54. Rc5 d3 55. Rc7+ Kd6 56. Rxc4 Kd5 57. Rc1 Kd4 58. Rd1 Rf6+ 59. Kg3 Ra6 60. Rh1 Ke3 61. Re1+ Kd4 62. Rh1 d2 63. Kf2 Kd3 64. Ra1 Rf6+ 65. Kg2 Ke2 0-1

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.11"]
[Round "7"]
[White "Pashinsky, Mikhail"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2273"]
[BlackElo "2156"]
[PlyCount "210"]
[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. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. 0-0 g6 5. b3 Bg7 6. Bb2 0-0 7. c4 Bg4 8. d3 Na6 9. Nbd2 Rc8 10. a3 Re8 11. Rc1 Nc7 12. b4 Ne4 13. Bxg7 Nxd2 14. Qxd2 Kxg7 15. Ne5 Be6 16. cxd5 cxd5 17. h4 f6 18. Nf3 Qd7 19. Nd4 Bf7 20. Kh2 e5 21. Bh3 Ne6 22. Nf3 Rxc1 23. Rxc1 Rc8 24. d4 e4 25. Bxe6 Bxe6 26. Rxc8 Qxc8 27. Ne1 Qc4 28. Kg2 Bg4 29. f3 Bf5 30. g4 Be6 31. Kf2 f5 32. gxf5 Bxf5 33. Ng2 exf3 34. exf3 Qc7 35. Qf4 Qc2+ 36. Kg3 Be6 37. Qe5+ Kf7 38. Nf4 Qf5 39. Qxf5+ gxf5 40. Ne2 Kf6 41. Nc3 b6 42. Kf4 h6 43. Nd1 a6 44. Nc3 Bf7 45. Nd1 Be6 46. Ne3 a5 47. bxa5 bxa5 48. h5 a4 49. Nc2 Bc8 50. Nb4 Bb7 51. Nd3 Ba6 52. Nb2 Bb5 53. Nd1 Bd7 54. Ne3 Be6 55. Nf1 Bf7 56. Ng3 Be6 57. Ne2 Bd7 58. Nc1 Bc6 59. Na2 Ba8 60. Nb4 Bb7 61. Nd3 Ba6 62. Nf2 Bb5 63. Kg3 Be8 64. Kh4 Bb5 65. Nd1 Bd7 66. Nc3 Bc6 67. Nd1 Bd7 68. Ne3 Ke6 69. Kg3 Be8 70. Kf4 Bxh5 71. Nxf5 Bxf3 72. Nxh6 Bh5 73. Kg5 Bd1 74. Nf5 Bc2 75. Ng3 Bd1 76. Nh1 Bc2 77. Nf2 Bf5 78. Nd1 Bc2 79. Nc3 Bb3 80. Ne2 Bc4 81. Nf4+ Kd6 82. Kf6 Bb5 83. Ng2 Bd3 84. Ne3 Be4 85. Nd1 Bc2 86. Ne3 Be4 87. Ng4 Bf3 88. Ne5 Bh5 89. Nf7+ Kc6 90. Ne5+ Kd6 91. Kg5 Be2 92. Kf4 Ke6 93. Ke3 Bb5 94. Kf4 Be2 95. Ng6 Bd3 96. Kg5 Be4 97. Nf4+ Kd6 98. Kf6 Bh7 99. Ng6 Bxg6 100. Kxg6 Kc6 101. Kf5 Kb5 102. Ke6 Kc4 103. Ke5 Kb3 104. Kxd5 Kxa3 105. Kc6 Kb2 1/2-1/2

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.10"]
[Round "6"]
[White "Tkachev, Ivan"]
[Black "Alieva, Alexandra"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2156"]
[BlackElo "1940"]
[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 g6 2. Nf3 Bg7 3. e4 d6 4. Bd3 Nd7 5. 0-0 e5 6. dxe5 dxe5 7. b3 Ne7 8. Nbd2 Nc5 9. Nc4 f5 10. Ba3 Nxd3 11. Qxd3 Qxd3 12. cxd3 Nc6 13. Bb2 0-0 14. Nfxe5 Bxe5 15. Bxe5 b5 16. Bxc7 bxc4 17. bxc4 fxe4 18. dxe4 Ba6 19. Rac1 Rac8 20. Bd6 Rfd8 21. Rfd1 Na5 22. c5 Nb7 23. e5 Nxc5 24. Bxc5 Rxd1+ 25. Rxd1 Rxc5 26. Rd8+ Kf7 27. f4 Rc7 28. Kf2 Ke7 29. Rd2 Rc3 30. h4 Bc4 31. h5 gxh5 32. f5 Ra3 33. Rd6 Rxa2+ 34. Kg3 Ra6 35. f6+ Kf7 36. Rd7+ Ke8 37. Re7+ Kf8 38. Rxh7 Be2 39. Rh8+ Kf7 40. Rh7+ Kg8 41. Rb7 Bc4 42. Kf4 Bf7 43. Kg5 Ra5 44. Re7 Ra4 45. e6 Rg4+ 46. Kf5 Bg6+ 47. Ke5 Rxg2 48. Rg7+ Kh8 49. Rxg6 Re2+ 50. Kd6 Kh7 51. f7 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.09"]
[Round "5"]
[White "Savitskiy, Sergey"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "2354"]
[BlackElo "2156"]
[PlyCount "119"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. Be3 Bf5 7. Ne2 h5 8. h4 Nd7 9. Ng3 Bg6 10. Bd3 Bxd3 11. Qxd3 e6 12. 0-0-0 Qa5 13. Kb1 0-0-0 14. Qe2 Bd6 15. Ne4 Be7 16. c4 f5 17. Bg5 f6 18. Bd2 Qc7 19. Ng3 Nf8 20. Bc1 Bd6 21. Nxh5 Qf7 22. Ng3 Qg7 23. d5 Bxg3 24. fxg3 Qg4 25. Qxg4 fxg4 26. Rhf1 f5 27. Bg5 Rd7 28. d6 Rf7 29. c5 Kd7 30. b4 e5 31. Rfe1 Ng6 32. Kc2 e4 33. Kc3 Ne5 34. a4 Nd3 35. Rxd3 exd3 36. Kxd3 Rg8 37. Kd4 Rg6 38. Re5 Rg8 39. Ke3 a5 40. b5 cxb5 41. axb5 a4 42. Kd4 Ra8 43. Bd2 f4 44. Kd5 Rc8 45. Bxf4 a3 46. Rg5 a2 47. Be5 Re8 48. c6+ bxc6+ 49. bxc6+ Kd8 50. Bd4 Ref8 51. Bb6+ Kc8 52. d7+ Kb8 53. Bd4 Kc7 54. Be5+ Kb6 55. Kd6 Rf6+ 56. Bxf6 Rxf6+ 57. Ke7 a1Q 58. d8Q+ Kxc6 59. Qd7+ Kb6 60. Rb5+ 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.08"]
[Round "4"]
[White "Tkachev, Ivan"]
[Black "Gadzhiev, Farid"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2156"]
[BlackElo "1887"]
[PlyCount "69"]
[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 g6 3. Nbd2 c5 4. e3 Bg7 5. Be2 Nc6 6. c4 d5 7. dxc5 Qa5 8. cxd5 Nxd5 9. 0-0 Qxc5 10. Nb3 Qd6 11. e4 Nf4 12. Bb5 Qc7 13. Qc2 0-0 14. Be3 Bg4 15. Nfd4 Be5 16. Bxc6 bxc6 17. f3 Bd7 18. Rfd1 g5 19. Nc5 Bc8 20. g3 Nh3+ 21. Kg2 h5 22. Nf5 h4 23. Kxh3 hxg3 24. Rg1 Bxf5+ 25. exf5 Kg7 26. hxg3 Rh8+ 27. Kg2 Bxg3 28. Rh1 Bh2 29. Ne4 Rh4 30. Bf2 Rah8 31. Bxh4 Rxh4 32. Qf2 Qf4 33. Ng3 g4 34. Rxh2 gxf3+ 35. Kh1 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.07"]
[Round "3"]
[White "Solovjov, Sergey"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2381"]
[BlackElo "2156"]
[PlyCount "79"]
[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 c6 2. d4 d5 3. f3 Nf6 4. e5 Nfd7 5. f4 c5 6. c3 e6 7. Nf3 Nc6 8. a3 Be7 9. b4 b6 10. Bd3 f5 11. exf6 Nxf6 12. Ne5 Bd7 13. Nd2 cxd4 14. Nxd7 Qxd7 15. Nf3 Ne4 16. b5 Na5 17. 0-0 dxc3 18. Ne5 Bc5+ 19. Kh1 Qe7 20. Bxe4 dxe4 21. Qh5+ g6 22. Nxg6 Qf7 23. Qe5 Rg8 24. Qxe4 0-0-0 25. Ne5 Qb7 26. Nc6 Nxc6 27. bxc6 Qg7 28. f5 c2 29. Bf4 Bd6 30. f6 Qg6 31. Qxg6 hxg6 32. f7 Rgf8 33. Bh6 Rh8 34. Bg7 Rxh2+ 35. Kg1 Rh5 36. f8Q Bh2+ 37. Kf2 Rxf8+ 38. Bxf8 Rf5+ 39. Ke3 Rd5 40. Rac1 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.06"]
[Round "2"]
[White "Tkachev, Ivan"]
[Black "Mamyrbay, Assad"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2156"]
[BlackElo "1888"]
[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 d5 2. c4 e6 3. Nf3 Nf6 4. e3 Be7 5. Bd3 0-0 6. 0-0 Nbd7 7. b3 b6 8. Nbd2 Bb7 9. cxd5 exd5 10. Bb2 c5 11. Rc1 Rc8 12. Ne5 Nxe5 13. dxe5 Ne4 14. Nxe4 dxe4 15. Bc4 Qc7 16. Qg4 Bc6 17. Rfd1 Kh8 18. a4 Qb7 19. Qh5 Bd8 20. Rd6 Bc7 21. Rh6 gxh6 22. Qxh6 Bxe5 23. Bxe5+ f6 24. Bxf6+ Rxf6 25. Qxf6+ Qg7 26. Qd6 Bd7 27. Rd1 Bg4 28. Qd8+ Qf8 29. Qxf8+ Rxf8 30. Rd6 Kg7 31. h3 Bc8 32. Bd5 Re8 33. Rc6 Re5 34. Bc4 Bf5 35. Rc7+ Kf6 36. Rxa7 Re7 37. Ra6 Rb7 38. a5 1-0

[Event "Chigorin Memorial 21st"]
[Site "St Petersburg"]
[Date "2013.10.05"]
[Round "1"]
[White "Andriasian, Zaven"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2621"]
[BlackElo "2156"]
[PlyCount "95"]
[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 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. c4 dxc4 6. Bxc4 e6 7. Nc3 Nd7 8. Nge2 Be7 9. Ng3 Bg4 10. Be2 Bxe2 11. Qxe2 g6 12. Nge4 Nb6 13. Be3 Nh6 14. Rd1 Nf5 15. Bg5 Nd5 16. 0-0 Nxh4 17. Nd6+ Kf8 18. Bxh4 Bxh4 19. Nxb7 Qc7 20. Nd6 Nxc3 21. bxc3 Be7 22. Ne4 Kg7 23. Rd3 Rad8 24. Qd2 c5 25. Rd1 cxd4 26. cxd4 h4 27. Qf4 Rh5 28. Nf6 Rf5 29. Qxh4 Rh8 30. Qh7+ Rxh7 31. Ne8+ Kf8 32. Nxc7 Bd8 33. Nb5 f6 34. Rf3 Rxf3 35. gxf3 fxe5 36. dxe5 Bb6 37. Nd6 Rh4 38. Ne4 Rh5 39. Nf6 Rf5 40. Kg2 Ke7 41. Rd7+ Kf8 42. Ng4 g5 43. Kg3 Rf4 44. Nf6 Rf5 45. Kg4 Bxf2 46. Kh5 Bc5 47. Kg6 Be7 48. Rxa7 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.04"]
[Round "9"]
[White "Tkachev, Ivan"]
[Black "Frolov, Lev"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2128"]
[BlackElo "1970"]
[PlyCount "111"]
[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 c6 3. Nf3 Nf6 4. e3 e6 5. b3 Nbd7 6. Nbd2 Bd6 7. Bd3 0-0 8. Bb2 b6 9. 0-0 Bb7 10. Qc2 Rc8 11. Ne5 c5 12. Nxd7 Qxd7 13. dxc5 Rxc5 14. f4 dxc4 15. bxc4 Rh5 16. Bxf6 gxf6 17. Be4 Bc5 18. Rf3 f5 19. Bxb7 Qxb7 20. Nb3 Be7 21. Rg3+ Kh8 22. Rd1 Qc7 23. Qc3+ f6 24. Qd3 Rd8 25. Qe2 Rxd1+ 26. Qxd1 Rh6 27. Nd4 Qxc4 28. Qf3 Qc1+ 29. Qf1 Qxf1+ 30. Kxf1 Rxh2 31. Kg1 Rh4 32. Nxe6 Rg4 33. Kf2 Bc5 34. Rh3 Bb4 35. Rh5 Kg8 36. Rxf5 Kf7 37. Nd8+ Kg6 38. Rd5 a5 39. Nc6 Bc5 40. g3 Kf7 41. Nxa5 Rg8 42. Nb3 Ra8 43. Rd2 Ke6 44. Kf3 h5 45. Rh2 f5 46. e4 fxe4+ 47. Kxe4 Ra4+ 48. Kf3 Be7 49. Rxh5 Rxa2 50. g4 Ra3 51. Rb5 Bc5 52. Ke2 Ra2+ 53. Nd2 Kd5 54. g5 Ke6 55. Kd3 Kf5 56. Nb3 1/2-1/2

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.03"]
[Round "8"]
[White "Dzhavathanov, Magomed"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1848"]
[BlackElo "2128"]
[PlyCount "66"]
[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. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 c6 6. Nf3 Bg4 7. h3 Bh5 8. 0-0 e6 9. Bf4 Bb4 10. g4 Bg6 11. Ne2 Nbd7 12. c3 Be7 13. b4 Qd8 14. a4 Nb6 15. Bb3 Nbd5 16. Bg3 Ne4 17. Bxd5 cxd5 18. h4 f6 19. h5 Bf7 20. Bf4 Rc8 21. Qd3 Qd7 22. Nh2 g6 23. f3 Nd6 24. Ng3 Nc4 25. a5 gxh5 26. gxh5 e5 27. dxe5 fxe5 28. Rfe1 exf4 29. Nf5 Ne3 30. Ng4 Qxf5 31. Rxe3 Qxd3 32. Rxd3 Bxh5 33. Ne5 0-0 0-1

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.02"]
[Round "7"]
[White "Tkachev, Ivan"]
[Black "Shagdurov, Denis"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "2128"]
[BlackElo "1890"]
[PlyCount "68"]
[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 c5 3. e3 g6 4. Nc3 Bg7 5. Nge2 0-0 6. g3 cxd4 7. Nxd4 d5 8. c5 e5 9. Nb3 Bg4 10. f3 Be6 11. Bg2 Na6 12. 0-0 Rc8 13. f4 e4 14. Nb5 Nxc5 15. Nxc5 Rxc5 16. Nd4 Bg4 17. Qb3 Qd7 18. Bd2 Rfc8 19. Bc3 Ne8 20. a4 Nd6 21. Qa2 Bh3 22. Qb1 Bxg2 23. Kxg2 Bxd4 24. exd4 Rc4 25. Qd1 Nf5 26. h3 Nxd4 27. Bxd4 Rxd4 28. Qxd4 Rc2+ 29. Qf2 Rxf2+ 30. Kxf2 Qxh3 31. Rg1 d4 32. Rae1 Qf5 33. Rc1 Qd5 34. g4 Qb3 0-1

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.11.01"]
[Round "6"]
[White "Andreeva, Yuliya"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "1944"]
[BlackElo "2128"]
[PlyCount "105"]
[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. Nf3 e6 3. c4 Nf6 4. Nc3 c6 5. Bg5 Nbd7 6. e3 h6 7. Bh4 Be7 8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 a6 11. 0-0 c5 12. Rc1 Bb7 13. Bb1 c4 14. Nd2 Nb6 15. Ne2 Bd6 16. e4 Bb4 17. f3 g5 18. Bg3 Nh5 19. Bf2 Nf4 20. Be3 Bd6 21. e5 Nfd5 22. Bf2 Be7 23. Ne4 Qd7 24. b3 Rc8 25. N2g3 Nf4 26. b4 Nbd5 27. Nc5 Qc7 28. Nge4 Nxb4 29. Nd6+ Bxd6 30. exd6 Qxd6 31. Nxb7 Qc7 32. Nc5 a5 33. a4 Nbd5 34. axb5 c3 35. b6 Nxb6 36. Rxc3 0-0 37. Ra3 Nbd5 38. Qc2 f5 39. Rxa5 Qf7 40. Ba2 Qc7 41. Rb5 Qc6 42. Rb3 g4 43. Qd2 Rf6 44. Ra3 Rg6 45. Bxd5 Nxd5 46. fxg4 Rf8 47. Ra6 Qc8 48. gxf5 Rxf5 49. Bg3 Rxf1+ 50. Kxf1 Qf8+ 51. Kg1 Rf6 52. Ra1 Qf7 53. Be5 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.31"]
[Round "5"]
[White "Tkachev, Ivan"]
[Black "Ulyanin, Sergei"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2128"]
[BlackElo "2308"]
[PlyCount "108"]
[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. Bg5 c5 3. dxc5 Qa5+ 4. c3 Qxc5 5. Nf3 Ne4 6. Be3 Qc7 7. g3 Nc6 8. Bg2 g6 9. Na3 Bg7 10. Nd4 Nxd4 11. Bxd4 Nf6 12. Qa4 a6 13. Qb4 d6 14. Nc4 0-0 15. Nb6 Rb8 16. Rd1 Be6 17. 0-0 Nd7 18. Nxd7 Qxd7 19. b3 Rfc8 20. e4 Qc7 21. Bxg7 Kxg7 22. Qd4+ f6 23. Rc1 b5 24. f4 Qc5 25. Rfe1 Rc7 26. e5 dxe5 27. fxe5 f5 28. b4 Qa7 29. a3 Rbc8 30. Rcd1 Rd7 31. Qxa7 Rxa7 32. Re3 Rac7 33. Rdd3 a5 34. bxa5 Ra7 35. a6 Rcc7 36. Bb7 Bc8 37. Rd4 Bxb7 38. axb7 Rcxb7 39. c4 Ra4 40. Rb3 Kf7 41. Kf2 Ke6 42. Ke3 b4 43. Rdd3 Kxe5 44. Rd5+ Ke6 45. Rdd3 Rxa3 46. Rxa3 bxa3 47. Rxa3 Kd6 48. Kd4 e5+ 49. Kc3 Rd7 50. Kb4 e4 51. Ra6+ Ke5 52. Ra3 Kd4 53. Kb5 Rc7 54. Ra1 Rc5+ 0-1

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.30"]
[Round "4"]
[White "Tilicheev, Viacheslav"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "C42"]
[WhiteElo "2397"]
[BlackElo "2128"]
[PlyCount "45"]
[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. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Nxe5 Qe7 5. Nd3 Bxc3 6. dxc3 Qxe4+ 7. Be2 Qxg2 8. Bf3 Qh3 9. Nf4 Qf5 10. Qe2+ Kd8 11. Be3 Nc6 12. Rg1 Re8 13. Rxg7 Ne5 14. 0-0-0 d6 15. Rg5 Qxg5 16. Ne6+ Rxe6 17. Bxg5 Ke8 18. Bg2 h6 19. Bxh6 Neg4 20. Qd2 Bd7 21. Bg5 Bc6 22. Bxc6+ bxc6 23. Qf4 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.29"]
[Round "3"]
[White "Tkachev, Ivan"]
[Black "Lugovskoy, Maxim"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2128"]
[BlackElo "2372"]
[PlyCount "117"]
[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. Nf3 Nf6 4. e3 c5 5. Nbd2 cxd4 6. Nxd4 Be7 7. Be2 0-0 8. 0-0 Nc6 9. N2f3 Ne4 10. Bd3 Bf6 11. Nxc6 bxc6 12. Qc2 Rb8 13. Bxe4 dxe4 14. Qxe4 c5 15. Qc2 Bb7 16. e4 Qc7 17. Rb1 Be5 18. Nxe5 Qxe5 19. f3 f5 20. exf5 Rxf5 21. Qc3 Qc7 22. Qe1 Rf6 23. Bg5 Rg6 24. Bh4 Re8 25. Bg3 e5 26. Qe3 Qe7 27. Rfe1 Re6 28. Rbd1 h5 29. h4 e4 30. f4 Rg6 31. Rf1 Rf8 32. f5 Rgf6 33. Qg5 Re8 34. Bd6 Qf7 35. Bxc5 Qxc4 36. Be3 Qc6 37. Qxh5 Ref8 38. Qg5 Ba6 39. Rf2 Bd3 40. g4 Qd5 41. b3 a5 42. Rc1 Qd7 43. Qf4 Qd8 44. Qc7 Qa8 45. Rc5 R6f7 46. Qxa5 Qb8 47. Bf4 Qe8 48. Re5 Qc8 49. Qc5 e3 50. Bxe3 Qd8 51. Bg5 Qb8 52. Qe3 Ba6 53. Re7 Qb4 54. Rf4 Qd6 55. Rd4 Qc6 56. Rxf7 Rxf7 57. Qe6 Qc5 58. Be3 Qf8 59. Qxa6 1-0

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.28"]
[Round "2"]
[White "Belkina, Yuliya"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1850"]
[BlackElo "2128"]
[PlyCount "80"]
[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. e4 c6 2. d4 d5 3. e5 Bf5 4. f4 e6 5. Nf3 c5 6. c3 Nc6 7. Bd3 Bg4 8. Bb5 Nh6 9. h3 Bxf3 10. Qxf3 cxd4 11. Bxc6+ bxc6 12. cxd4 Nf5 13. 0-0 Nxd4 14. Qf2 Qa5 15. Bd2 Qb6 16. Nc3 Nc2 17. Qxb6 axb6 18. Rac1 Bc5+ 19. Kh2 Ne3 20. Bxe3 Bxe3 21. Rc2 Kd7 22. a3 g6 23. Rf3 Bc5 24. Ne2 Rhc8 25. g4 Be7 26. f5 Rf8 27. b4 c5 28. f6 Bd8 29. bxc5 bxc5 30. Rxc5 Bc7 31. g5 Bxe5+ 32. Kg2 Rfc8 33. Rxc8 Kxc8 34. h4 Bd6 35. Nf4 Rxa3 36. Rxa3 Bxa3 37. h5 Bc1 38. hxg6 hxg6 39. Nh3 Be3 40. Kf3 d4 0-1

[Event "Chigorin Memorial 20th"]
[Site "St Petersburg"]
[Date "2012.10.27"]
[Round "1"]
[White "Tkachev, Ivan"]
[Black "Savchenko, Boris"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2128"]
[BlackElo "2540"]
[PlyCount "146"]
[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 e6 2. c4 b6 3. Nc3 Bb4 4. e4 Bb7 5. f3 Ne7 6. a3 Bxc3+ 7. bxc3 Ba6 8. Nh3 Nbc6 9. Bd3 Na5 10. Qe2 Nb3 11. Rb1 Nxc1 12. Rxc1 Nc6 13. 0-0 Qe7 14. Nf4 Qxa3 15. c5 Bxd3 16. Qxd3 bxc5 17. Ra1 c4 18. Qxc4 Qd6 19. e5 Qe7 20. d5 Nxe5 21. Qxc7 Qg5 22. dxe6 0-0 23. Nh3 Qe3+ 24. Kh1 Rfc8 25. exf7+ Kxf7 26. Qd6 Qc5 27. Ng5+ Kg8 28. Qxc5 Rxc5 29. Ne4 Rd5 30. Ra6 Nc6 31. h3 Rb8 32. Re1 Kf8 33. c4 Re5 34. Rd1 Ke7 35. Rd5 Rb7 36. Kh2 Rxd5 37. cxd5 Nb4 38. d6+ Ke8 39. Ra4 Nc6 40. Nc3 Rb4 41. Ra6 Kf7 42. Ne4 Rb5 43. Ra3 a5 44. h4 Ke6 45. Rd3 h6 46. Kg3 Ne5 47. Rd4 Nf7 48. Kf4 Rd5 49. Rc4 Nxd6 50. Nc5+ Ke7 51. Rc2 Rd4+ 52. Kg3 Rc4 53. Re2+ Kd8 54. Nd3 a4 55. Ne5 Rc5 56. Nd3 Rc3 57. Nb4 Rb3 58. Na2 a3 59. Kf4 Nb5 60. Rd2 Ke7 61. g4 g5+ 62. hxg5 hxg5+ 63. Ke4 Ke6 64. f4 Nd6+ 65. Kd4 Rb2 66. f5+ Nxf5+ 67. gxf5+ Kxf5 68. Rxb2 axb2 69. Nc3 Kf4 70. Kd3 Kf3 71. Kc2 g4 72. Nb1 g3 73. Nd2+ Ke2 0-1

[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 "Tkachev, Ivan"]
[Black "Pasiev, Rakhim"]
[Result "1/2-1/2"]
[ECO "D01"]
[WhiteElo "2117"]
[BlackElo "2325"]
[PlyCount "81"]
[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. Bg5 Nd7 3. Nc3 Ngf6 4. Qd3 e6 5. e4 dxe4 6. Nxe4 Be7 7. Nxf6+ Nxf6 8. Bxf6 Bxf6 9. 0-0-0 0-0 10. Nf3 b6 11. Qe4 Rb8 12. Bb5 Bb7 13. Bc6 Bxc6 14. Qxc6 Qd5 15. Qxd5 exd5 16. c3 Rfe8 17. Rhe1 Kf8 18. Rxe8+ Rxe8 19. Re1 Rxe1+ 20. Nxe1 Ke7 21. Kd2 c5 22. Ke3 Kd6 23. f4 Bd8 24. Nd3 Bc7 25. b4 c4 26. Ne5 f6 27. Nf3 Kc6 28. a4 a5 29. b5+ Kd7 30. h3 Bd6 31. Ne1 h5 32. g4 hxg4 33. hxg4 Ke6 34. Nc2 g6 35. Kf3 Bf8 36. Ke3 Be7 37. Kf3 Bd6 38. Ke3 g5 39. f5+ Kd7 40. Ke2 Bf4 41. Ne3 1/2-1/2

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.31"]
[Round "7"]
[White "Kharmunova, Nadezhda"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "E07"]
[WhiteElo "2219"]
[BlackElo "2117"]
[PlyCount "154"]
[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. g3 c6 5. Bg2 dxc4 6. Nf3 Nbd7 7. 0-0 Be7 8. Qc2 0-0 9. Rd1 Qa5 10. Bf4 Nd5 11. Bd2 Qc7 12. Ne4 f5 13. Neg5 N7f6 14. Qxc4 h6 15. Nh3 Ne4 16. Bf4 Qb6 17. Nd2 Nxd2 18. Bxd2 Qxb2 19. Nf4 Bf6 20. Rab1 Nb6 21. Qxe6+ Bxe6 22. Rxb2 Bf7 23. Bb4 Rfd8 24. e3 Rac8 25. Rc1 Nc4 26. Rbc2 b5 27. Nd3 Bg6 28. Nb2 c5 29. Nxc4 cxb4 30. Nd2 Rxc2 31. Rxc2 f4 32. Ne4 fxe3 33. fxe3 Bf7 34. Nxf6+ gxf6 35. d5 a5 36. Rc5 Be8 37. Bf1 Rb8 38. Kf2 a4 39. Rc7 Rd8 40. Bh3 Kf8 41. e4 b3 42. axb3 axb3 43. Rc3 Bg6 44. Rxb3 Bxe4 45. Be6 Rb8 46. Ke3 Bc2 47. Rb2 Bd1 48. Rb4 Ke7 49. Kd4 Kd6 50. Rb1 Be2 51. Re1 Bh5 52. Ra1 Be8 53. Ra6+ Ke7 54. Kc5 b4 55. Ra7+ Kd8 56. Bf7 b3 57. Bxe8 Kxe8 58. Rh7 Rb5+ 59. Kxb5 b2 60. Kc6 b1Q 61. Rb7 Qc2+ 62. Kd6 Qxh2 63. Rb8+ Kf7 64. Kd7 Qxg3 65. d6 h5 66. Kc6 Qc3+ 67. Kd7 h4 68. Rc8 Qh3+ 69. Kc7 Qc3+ 70. Kd7 Qe5 71. Rh8 h3 72. Kc6 Qc3+ 73. Kb7 Qb4+ 74. Kc7 Qc5+ 75. Kd7 Kg7 76. Rh4 Qg5 77. Ra4 Qb5+ 0-1

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.30"]
[Round "6"]
[White "Tkachev, Ivan"]
[Black "Kopylov, Alexander A"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2117"]
[BlackElo "2449"]
[PlyCount "100"]
[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 e6 2. Nf3 c5 3. c3 Nc6 4. e4 d5 5. exd5 Qxd5 6. Be3 cxd4 7. Nxd4 Nxd4 8. Qxd4 Qxd4 9. Bxd4 Bd7 10. Be2 Ne7 11. Bc5 Bc6 12. 0-0 Ng6 13. Bxf8 Rxf8 14. Rd1 Ke7 15. Na3 Rfd8 16. f3 Nf4 17. Kf2 e5 18. g3 Nxe2 19. Kxe2 g5 20. Ke3 Ke6 21. Nc4 Bd5 22. Nd2 f5 23. f4 exf4+ 24. gxf4 g4 25. Nf1 h5 26. Kf2 h4 27. Rd4 Be4 28. Rad1 Rxd4 29. Rxd4 Rg8 30. a3 Ke7 31. b4 b5 32. c4 bxc4 33. Rxc4 Kd6 34. Rc5 Rg7 35. Ne3 Ke6 36. Re5+ Kf6 37. Nd5+ Bxd5 38. Rxd5 Rc7 39. Rd6+ Ke7 40. Ra6 h3 41. Ke3 Rc2 42. Rxa7+ Kd6 43. Ra6+ Kc7 44. Ra5 Rxh2 45. Rxf5 Ra2 46. Rh5 h2 47. Ke4 Rf2 48. Rc5+ Kb6 49. Rc1 g3 50. Ke3 Ra2 0-1

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.29"]
[Round "5"]
[White "Toivonen, Alexander"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2250"]
[BlackElo "2117"]
[PlyCount "82"]
[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. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. 0-0 Bf5 6. dxc5 e6 7. a3 Bxc5 8. b4 Bd6 9. Nbd2 b5 10. Nb3 a6 11. Nbd4 Nxd4 12. Nxd4 Bg6 13. a4 Rc8 14. axb5 axb5 15. c3 Qd7 16. Ra5 Bc7 17. Ra7 e5 18. Nb3 0-0 19. Be3 Ra8 20. Qa1 Qc6 21. Qb2 Be4 22. f3 Bb6 23. Rxa8 Bxe3+ 24. Kh1 Rxa8 25. fxe4 Nxe4 26. Bxe4 dxe4 27. Na5 Qd5 28. Qc2 Rc8 29. Rd1 Qa8 30. Rd7 Bf2 31. Kg2 e3+ 32. Nb7 Qa1 33. Nd6 Qg1+ 34. Kh3 Qf1+ 35. Kg4 h5+ 36. Kg5 Bxg3 37. Rxf7 Bf4+ 38. Kf5 Qh3+ 39. Ke4 Qg2+ 40. Kf5 Qg4+ 41. Ke4 Qg6+ 0-1

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.28"]
[Round "4"]
[White "Tkachev, Ivan"]
[Black "Timirev, Sergey"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2117"]
[BlackElo "1848"]
[PlyCount "15"]
[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 f5 2. h3 d5 3. Bg5 Nf6 4. e3 e6 5. g4 Be7 6. Bf4 0-0 7. g5 Ne4 8. h4 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.27"]
[Round "3"]
[White "Shushpanov, Vladimir Fedorovich"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2318"]
[BlackElo "2117"]
[PlyCount "113"]
[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 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 c5 5. cxd5 Nxd5 6. 0-0 Nc6 7. d4 Nc7 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. Nc3 e5 11. Nd5 Bd6 12. Be3 Nxd5 13. Rxd5 Bc7 14. Ng5 0-0 15. Ne4 Be6 16. Rb5 Nd4 17. Bxd4 exd4 18. Rxb7 Bb6 19. a4 Rab8 20. Rxb8 Rxb8 21. b4 Bc4 22. Bf3 Bd8 23. b5 Bd5 24. Rd1 Bxe4 25. Bxe4 Bb6 26. Rc1 Kf8 27. Kf1 g6 28. Ke1 f5 29. Bc6 Ke7 30. Kd2 Kd6 31. Kd3 g5 32. Bg2 Bc5 33. Rb1 a5 34. Rh1 Rc8 35. h4 g4 36. h5 h6 37. Rc1 Rc7 38. Rc2 Ke5 39. Rc4 Bb6 40. Rxc7 Bxc7 41. f4+ gxf3 42. exf3 Bb6 43. f4+ Kd6 44. Bh3 Ke6 45. Kc4 Ba7 46. g4 fxg4 47. Bxg4+ Kd6 48. Kd3 Kd5 49. Bf3+ Kd6 50. Ke4 Bb6 51. Be2 Ke6 52. Bc4+ Kf6 53. Bd3 Ke6 54. f5+ Kf6 55. Kd5 Kg5 56. Ke6 Bd8 57. Be2 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.26"]
[Round "2"]
[White "Tkachev, Ivan"]
[Black "Rybakova, Polina"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2117"]
[BlackElo "1781"]
[PlyCount "113"]
[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. Bg5 e6 3. Nf3 Be7 4. e3 d6 5. c4 Nbd7 6. Nc3 e5 7. Qc2 c6 8. Bd3 Qc7 9. 0-0 h6 10. Bh4 0-0 11. Rac1 a6 12. a4 Re8 13. Be2 Nf8 14. c5 exd4 15. cxd6 Bxd6 16. Bxf6 dxc3 17. Bxc3 Ng6 18. h3 Qe7 19. Rfd1 Bc7 20. Bd4 Nh4 21. Qc3 Nxf3+ 22. Bxf3 Qg5 23. Kf1 Be6 24. Qb4 Rab8 25. Qa3 Rbd8 26. b4 Bd5 27. Bxd5 Rxd5 28. Qc3 Red8 29. Rc2 Be5 30. Rcd2 Bxd4 31. Rxd4 Qh5 32. f3 Qg5 33. Kf2 Kf8 34. a5 h5 35. h4 Qe7 36. g3 Rxd4 37. Rxd4 Rxd4 38. Qxd4 f6 39. e4 g6 40. Qc5 Qxc5+ 41. bxc5 Ke7 42. g4 Ke6 43. gxh5 gxh5 44. f4 Ke7 45. f5 Kf7 46. Kf3 Ke7 47. Kf4 Kf7 48. e5 Ke7 49. exf6+ Kxf6 50. Ke4 Kf7 51. Ke5 Ke7 52. f6+ Kf7 53. Kf5 Kf8 54. Kg6 Kg8 55. f7+ Kf8 56. Kf6 b5 57. axb6 1-0

[Event "St Petersburg Botvinnik Memorial op"]
[Site "St Petersburg"]
[Date "2012.08.25"]
[Round "1"]
[White "Levin, Evgeny A"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2512"]
[BlackElo "2117"]
[PlyCount "97"]
[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 Nf6 3. Nc3 e6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 0-0 8. Nge2 Na6 9. 0-0 Nc7 10. Qc2 h6 11. Bh4 Ne6 12. Rad1 b6 13. f3 Bb7 14. Kh1 Kh8 15. Bf5 Ne8 16. Bg3 Nd6 17. Bxe6 fxe6 18. Nf4 Qd7 19. Ng6+ Kg8 20. Nxf8 Rxf8 21. e4 Nc4 22. Rfe1 Bg5 23. Bf2 Qf7 24. b3 Nd6 25. Bg3 Rd8 26. Qf2 Nb5 27. Nxb5 cxb5 28. exd5 Bxd5 29. Bh4 Qf6 30. Bxg5 Qxg5 31. Rc1 a5 32. Rc7 Qf4 33. Rc2 Kh7 34. Qe2 Qxd4 35. Qxb5 Rf8 36. Qe2 b5 37. Rd1 Qb4 38. Rc7 Qf4 39. Rc5 a4 40. Rxb5 axb3 41. axb3 Rf5 42. Qc2 Bxf3 43. Rxf5 Bxd1 44. Rxf4+ Bxc2 45. b4 Bd3 46. Rd4 Bb5 47. Rd6 Bc4 48. Rc6 Bd5 49. b5 1-0

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.10"]
[Round "9"]
[White "Tkachev, Ivan"]
[Black "Grela, Kacper"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2156"]
[BlackElo "1875"]
[PlyCount "88"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. c4 b6 5. g3 Bb7 6. Bg2 Be7 7. 0-0 0-0 8. Nc3 Na6 9. a3 d6 10. Qe2 Nc7 11. b4 d5 12. Rb1 cxb4 13. axb4 dxc4 14. Qxc4 Ncd5 15. Nxd5 Nxd5 16. Bd2 a5 17. b5 Rc8 18. Qb3 Nb4 19. Ne5 Bxg2 20. Kxg2 Qe8 21. Bxb4 Bxb4 22. Nc6 Rxc6 23. bxc6 Qxc6+ 24. f3 Qb5 25. Rf2 Rc8 26. Rc2 Rxc2+ 27. Qxc2 g6 28. e4 h5 29. Rc1 Kg7 30. d5 exd5 31. Qb2+ Kh7 32. Rc7 d4 33. Rxf7+ Kh6 34. Qxd4 Qe2+ 35. Qf2 Qxf2+ 36. Kxf2 a4 37. Ke2 a3 38. Rc7 a2 39. Rc1 Bc3 40. Kd3 a1Q 41. Rxc3 b5 42. e5 Qd1+ 43. Ke4 b4 44. Rd3 Qc2 0-1

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.09"]
[Round "8"]
[White "Szumilas, Piotr"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2196"]
[BlackElo "2156"]
[PlyCount "67"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. Bd2 Qb6 10. 0-0-0 Nbd7 11. Bf4 0-0-0 12. Bb3 Qa5 13. Rhe1 h5 14. Bh2 g5 15. Kb1 g4 16. Qe2 Bb4 17. Qd3 gxh3 18. gxh3 Rhg8 19. Qf3 Rg5 20. Re3 Rf5 21. Qe2 Rg8 22. a3 Bxc3 23. Rxc3 Nd5 24. Rf3 Ne7 25. d5 cxd5 26. Rxf5 Nxf5 27. Qxh5 Qb6 28. Qf3 Nd6 29. h4 Nc5 30. Qf4 Kd7 31. Bxd5 exd5 32. Rxd5 Rg6 33. Qxf7+ Kc6 34. Rxc5+ 1/2-1/2

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.08"]
[Round "7"]
[White "Tkachev, Ivan"]
[Black "Wasylkiewicz, Andrzej"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2156"]
[BlackElo "1907"]
[PlyCount "177"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 c6 3. c3 Bf5 4. Nd2 Nd7 5. h3 h6 6. Bh4 Ngf6 7. Ngf3 e6 8. Ne5 Be7 9. Bg3 Ne4 10. Nxe4 Bxe4 11. Nd3 Qb6 12. Qd2 0-0 13. e3 Rac8 14. b4 Qd8 15. f3 Bh7 16. Qf2 Nf6 17. Be2 Nh5 18. Bh2 Bh4 19. g3 Be7 20. 0-0 Bd6 21. g4 Bxh2+ 22. Qxh2 Nf6 23. a4 Qe7 24. Qg3 Nd7 25. f4 Nf6 26. Nf2 Nd7 27. Bd3 f6 28. Bxh7+ Kxh7 29. e4 e5 30. Rae1 Qd6 31. Qd3 Kh8 32. dxe5 fxe5 33. f5 Nb6 34. exd5 cxd5 35. Ne4 Qc6 36. Nc5 e4 37. Qd4 Rf6 38. a5 Nd7 39. Nxd7 Qxd7 40. Re3 a6 41. Rd1 Rd6 42. Qe5 Re8 43. Qd4 Rd8 44. Rg3 Qe7 45. Rd2 Kg8 46. g5 hxg5 47. Rdg2 Qf6 48. Rxg5 Qxd4+ 49. cxd4 R8d7 50. Rc2 Kh7 51. Rc5 Rc6 52. Kf2 Rxc5 53. bxc5 Rf7 54. Rh5+ Kg8 55. Ke3 Rf6 56. Rg5 Kf7 57. h4 Kf8 58. h5 Kf7 59. Kf4 Rh6 60. Ke5 e3 61. Rg3 e2 62. Re3 Rxh5 63. Rxe2 g6 64. Rf2 Ke7 65. Kxd5 Kd7 66. Ke4 Rh4+ 67. Ke5 gxf5 68. Rxf5 Rh1 69. Rf7+ Kc6 70. Rf6+ Kc7 71. Kd5 Ra1 72. Rf7+ Kb8 73. Kd6 Rxa5 74. d5 Ra1 75. Ke7 Re1+ 76. Kd7 Rc1 77. Rf8+ Ka7 78. Kd6 a5 79. Rf4 Ka6 80. Rf8 Ka7 81. Rc8 a4 82. Rh8 Rc4 83. Rh7 Ka6 84. c6 bxc6 85. dxc6 Kb6 86. Rb7+ Ka6 87. Rb8 Rd4+ 88. Kc5 Rd1 89. Ra8# 1-0

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.07"]
[Round "6"]
[White "Wisniewski, Michal"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "1854"]
[BlackElo "2156"]
[PlyCount "122"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bg4 7. 0-0 e6 8. h3 Bh5 9. Bf4 Bb4 10. Nb1 Nbd7 11. c3 Be7 12. Nbd2 0-0 13. Re1 Qb6 14. Bb3 Nd5 15. Bh2 Rfd8 16. Nc4 Qa6 17. g4 Bg6 18. Nce5 Nxe5 19. Nxe5 c5 20. Nxg6 hxg6 21. dxc5 Bxc5 22. Qf3 Bd6 23. Red1 Bxh2+ 24. Kxh2 Ne7 25. Rxd8+ Rxd8 26. Rd1 Rxd1 27. Qxd1 Qb6 28. Kg2 Qc7 29. Qd3 a6 30. Qc4 Nc6 31. Qd3 Ne5 32. Qe4 Nd7 33. Qc4 Nc5 34. Bc2 Qc6+ 35. f3 Qd6 36. Qd4 Qxd4 37. cxd4 Nd7 38. Be4 b6 39. Bb7 Nb8 40. f4 Kf8 41. d5 exd5 42. Bxd5 Nd7 43. b4 a5 44. a3 axb4 45. axb4 Ke7 46. Kf3 Nb8 47. Bb7 Kd6 48. h4 Nd7 49. g5 Nf8 50. Bc8 Kd5 51. Bb7+ Kc4 52. Bc6 Kxb4 53. Be8 f6 54. gxf6 gxf6 55. f5 g5 56. hxg5 fxg5 57. Kg4 Kc5 58. Kxg5 b5 59. Kf6 b4 60. Ba4 Kd6 61. Kg7 Nd7 1/2-1/2

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.06"]
[Round "5"]
[White "Tkachev, Ivan"]
[Black "Markowski, Piotr"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2156"]
[BlackElo "2199"]
[PlyCount "142"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 h6 3. Bh4 g6 4. Nf3 Bg7 5. c4 dxc4 6. Qa4+ c6 7. Qxc4 Qb6 8. Qc3 c5 9. Na3 Be6 10. e3 Nc6 11. Bb5 a6 12. Ba4 0-0-0 13. 0-0 cxd4 14. exd4 Bxd4 15. Nxd4 Qxd4 16. Bxc6 Qxc3 17. Bxb7+ Kxb7 18. bxc3 Nf6 19. f3 Rd2 20. Bf2 Bxa2 21. Rfe1 Be6 22. Reb1+ Kc7 23. Bd4 Ra8 24. Be3 Ra2 25. Bxh6 Rxa1 26. Rxa1 Nd5 27. c4 Nb6 28. Be3 Rd8 29. Rb1 Na4 30. Rb4 Rd1+ 31. Kf2 Nc3 32. Nc2 a5 33. Bf4+ Kc6 34. Rb8 a4 35. Ra8 Kc5 36. Ra7 Rb1 37. Rc7+ Kb6 38. c5+ Ka6 39. Rc6+ Kb7 40. Rc7+ Ka6 41. Rc6+ Kb7 42. Rc7+ Ka8 43. Rc6 Rb2 44. Ra6+ Kb7 45. Rb6+ Rxb6 46. cxb6 Kxb6 47. Bd2 Nd5 48. Na3 Kc5 49. Ke2 Kd4 50. g4 Nc3+ 51. Ke1 Kd3 52. Bh6 Bd5 53. Kf2 Nd1+ 54. Kg3 Ke2 55. Nc2 Nf2 56. Nd4+ Kf1 57. h4 a3 58. Nc2 a2 59. Bf8 e5 60. Bg7 Nd3 61. h5 gxh5 62. gxh5 f5 63. h6 Bg8 64. Bf8 Ke2 65. Na1 Ne1 66. f4 Nd3 67. Bd6 exf4+ 68. Bxf4 Nxf4 69. Kxf4 Bh7 70. Ke5 Kd3 71. Kf6 f4 0-1

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.04"]
[Round "3"]
[White "Tkachev, Ivan"]
[Black "Piotrowski, Przemyslaw"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2156"]
[BlackElo "1933"]
[PlyCount "131"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. Nbd2 Nf6 4. e4 d6 5. Bd3 0-0 6. 0-0 Nbd7 7. c3 e5 8. Re1 c6 9. b3 Re8 10. Nc4 Qc7 11. Ba3 c5 12. b4 b5 13. Nxd6 Qxd6 14. bxc5 Qc7 15. Qb3 Bb7 16. Ng5 Rf8 17. Bxb5 h6 18. c6 Bxc6 19. Bxf8 Rxf8 20. Ne6 fxe6 21. Qxe6+ Kh8 22. Qxc6 Qxc6 23. Bxc6 Rc8 24. d5 Nb8 25. Bb5 Rc5 26. Rab1 Rxc3 27. d6 Bf8 28. Red1 Rc8 29. Ba4 Rd8 30. Rb7 Kg8 31. d7 Be7 32. f3 Bc5+ 33. Kf1 Bb6 34. Rd6 Kf7 35. Bb3+ Kg7 36. Be6 Na6 37. Rxa7 Bxa7 38. Rxa6 Bc5 39. Rc6 Bd4 40. Rc8 Bb6 41. Rc6 Ba5 42. Rc5 Bb6 43. Rxe5 Nxd7 44. Rb5 Bc7 45. Rb7 Kf6 46. Bh3 Bxh2 47. Bxd7 h5 48. a4 h4 49. Ke2 Ra8 50. Rb6+ Ke7 51. Bc6 Ra5 52. Bb5 g5 53. Rg6 Bf4 54. Kd3 Kf7 55. Rb6 Ra7 56. Kc4 Bc7 57. Rh6 Be5 58. Kd5 Bg7 59. Rd6 Bf8 60. Rd8 Be7 61. Rc8 Bb4 62. e5 Kg6 63. Rc6+ Kh5 64. Kc4 Be7 65. Rb6 Ra8 66. Bd7 1-0

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.03"]
[Round "2"]
[White "Walentukiewicz, Michal"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2113"]
[BlackElo "2156"]
[PlyCount "79"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 c5 5. 0-0 Nc6 6. cxd5 exd5 7. d4 Bf5 8. Nc3 Be7 9. Bg5 Ne4 10. Bxe7 Nxe7 11. dxc5 Nxc5 12. Qd4 Ne6 13. Qa4+ Kf8 14. Rad1 Nc5 15. Qd4 Ne6 16. Qb4 a5 17. Qa3 Nc7 18. e4 b5 19. Qc5 Bd7 20. Nxd5 Ncxd5 21. Rxd5 Qe8 22. Rd6 Rc8 23. Qa7 Be6 24. Qxa5 g6 25. Ng5 Bc4 26. Rfd1 Kg7 27. Qc3+ Kh6 28. Qd2 Kg7 29. b3 h6 30. Qd4+ Kg8 31. bxc4 hxg5 32. Rd8 Rxd8 33. Qxd8 Kg7 34. Qxe8 Rxe8 35. cxb5 Ra8 36. b6 Rb8 37. Rb1 Nc6 38. a4 Ne5 39. a5 Nc4 40. a6 1-0

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.03"]
[Round "4"]
[White "White, John2222"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "E35"]
[WhiteElo "1886"]
[BlackElo "2156"]
[PlyCount "167"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Bb4 7. e3 Bg4 8. Bd3 Bh5 9. Nge2 Bg6 10. Bxg6 hxg6 11. 0-0-0 Nbd7 12. Kb1 Qe7 13. f3 Qe6 14. e4 dxe4 15. fxe4 Qg4 16. h4 0-0 17. e5 Nd5 18. Ne4 Rae8 19. h5 f6 20. Rh4 Qxg2 21. Bc1 g5 22. Rg1 Qxg1 23. Nxg1 gxh4 24. h6 Re7 25. Nh3 fxe5 26. a3 Ba5 27. Neg5 e4 28. Qg2 e3 29. Ne6 e2 30. Qxe2 Nc7 31. hxg7 Rfe8 32. Qh5 Nxe6 33. Qxa5 Rxg7 34. Qh5 Nf6 35. Qxh4 Kf7 36. Ka2 Rg4 37. Qf2 Reg8 38. Nf4 Nxf4 39. Bxf4 R8g6 40. Be5 Ke6 41. Qf3 Nd5 42. Qf8 b5 43. Qc8+ Ke7 44. Qb7+ Ke8 45. Bd6 Rxd6 46. Qc8+ Rd8 47. Qe6+ Ne7 48. Qxg4 a5 49. Kb3 Rd5 50. Qf4 Kd7 51. Qb8 a4+ 52. Kc3 Ke6 53. Qc7 Rf5 54. Kd3 Rf3+ 55. Kc2 Rf2+ 56. Kc1 Rf5 57. Kc2 Rd5 58. Kd3 Rh5 59. Qg3 Rd5 60. Qc7 Rg5 61. Kc2 Rg2+ 62. Kc1 Rg5 63. Kc2 Rg8 64. Kd2 Rc8 65. Qe5+ Kd7 66. Qc5 Rc7 67. Kc2 Kc8 68. b3 axb3+ 69. Kxb3 Nd5 70. a4 bxa4+ 71. Kxa4 Kd7 72. Kb3 Rb7+ 73. Kc2 Rb4 74. Kd3 Rb3+ 75. Kd2 Rb2+ 76. Kd3 Rb7 77. Qf8 Rb3+ 78. Kc2 Re3 79. Kd2 Kc7 80. Qf7+ Kb6 81. Qxd5 cxd5 82. Kxe3 Kb5 83. Ke2 Kc4 84. Kd1 1/2-1/2

[Event "Wroclaw op-A 7th"]
[Site "Wroclaw"]
[Date "2012.07.02"]
[Round "1"]
[White "Tkachev, Ivan"]
[Black "Arutinian, David"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2156"]
[BlackElo "2556"]
[PlyCount "74"]
[EventDate "2012.07.02"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "POL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 g6 2. Bg5 Bg7 3. Nf3 c5 4. c3 Nf6 5. Bxf6 Bxf6 6. e4 cxd4 7. Nxd4 Nc6 8. Nf3 d6 9. Nbd2 0-0 10. Bc4 Rb8 11. Qe2 Bd7 12. Nb3 a6 13. 0-0 b5 14. Bd5 Qb6 15. Rfd1 b4 16. c4 Bg4 17. Rac1 Bxf3 18. gxf3 Nd4 19. Qd3 Nxb3 20. Qxb3 Bd4 21. Rc2 Bc5 22. e5 dxe5 23. Qa4 Rfd8 24. Rdd2 Rd6 25. Be4 Kg7 26. Rxd6 exd6 27. b3 Qa7 28. Qc6 a5 29. Re2 Qe7 30. Qd5 f5 31. Bc2 Qg5+ 32. Kf1 Qf4 33. Kg2 Rf8 34. Qd2 Qh4 35. h3 g5 36. Qd5 g4 37. hxg4 fxg4 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.22"]
[Round "9"]
[White "Chigaev, Maksim"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2289"]
[BlackElo "2074"]
[PlyCount "61"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 Bg4 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Bb4 9. 0-0 Qa5 10. h3 Bf5 11. d5 Rd8 12. Bd2 exd5 13. a3 Be7 14. Nb5 Qb6 15. Bf4 Rd7 16. Ne5 Nxe5 17. Bxe5 Bf6 18. Bxf6 Qxf6 19. Nd4 Re7 20. Nxf5 Qxf5 21. Bg4 Qe5 22. Rc1 f6 23. Rc5 g6 24. Rxd5 Qc7 25. Qd2 Kf7 26. Rc1 Qb6 27. Rc8 h5 28. Be2 Kg7 29. Rdd8 Kh7 30. Bc4 Rg7 31. Rd6 1-0

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.21"]
[Round "8"]
[White "Tkachev, Ivan"]
[Black "Demianjuk, Alexander"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2074"]
[BlackElo "2319"]
[PlyCount "135"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. Bg5 h6 4. Bh4 c5 5. e3 b6 6. Nbd2 Bb7 7. Bd3 Be7 8. e4 cxd4 9. Nxd4 d6 10. 0-0 0-0 11. c3 Nbd7 12. Re1 g6 13. b4 Rc8 14. Rc1 a6 15. Qe2 Ra8 16. Nc4 e5 17. Nb3 Re8 18. Rcd1 Qc7 19. Qd2 Bf8 20. f3 a5 21. Ne3 Rec8 22. Rc1 Bc6 23. a3 h5 24. c4 Bh6 25. Rcd1 axb4 26. axb4 Ra3 27. Qb2 Rca8 28. Nc2 Ra2 29. Qc3 Ba4 30. Ra1 Bc6 31. Rxa2 Rxa2 32. Ra1 Qa7 33. Bf2 Rxa1+ 34. Qxa1 Qxa1+ 35. Ncxa1 Bf8 36. Nc2 Ba4 37. Nc1 d5 38. cxd5 Bxc2 39. Bxc2 Bxb4 40. Nd3 Bd6 41. Ba4 Nc5 42. Bxc5 bxc5 43. Nb2 Kf8 44. Nc4 Ke7 45. f4 exf4 46. e5 Bxe5 47. Nxe5 Nxd5 48. Bb3 Ne3 49. Kf2 g5 50. Kf3 f6 51. Nc4 Nf5 52. Bd1 Ke6 53. Ke4 Nh4 54. g3 fxg3 55. hxg3 Nf5 56. g4 Ng3+ 57. Kf3 h4 58. Bc2 f5 59. gxf5+ Nxf5 60. Bxf5+ Kxf5 61. Nd6+ Ke5 62. Nf7+ Kd4 63. Nxg5 c4 64. Ne4 Kd3 65. Nc5+ Kd4 66. Ne4 h3 67. Nd6 c3 68. Nb5+ 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.20"]
[Round "7"]
[White "Hayrapetyan, Hovik"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2398"]
[BlackElo "2074"]
[PlyCount "101"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. dxc5 e6 4. e4 Nf6 5. exd5 Qxd5 6. Bd3 Bxc5 7. Nc3 Qh5 8. 0-0 0-0 9. Bg5 Nbd7 10. Re1 Ng4 11. Ne4 Nde5 12. Nxc5 Nxf3+ 13. Qxf3 Qxg5 14. Ne4 Qh4 15. Qf4 e5 16. Qg3 Qxg3 17. Nxg3 Re8 18. Bb5 Re7 19. Rad1 Be6 20. f3 Nf6 21. Rxe5 Rc7 22. Bd3 g6 23. Ne4 Nd7 24. Rb5 a6 25. Ra5 Nb6 26. b3 Rd8 27. Rc5 Re7 28. Kf2 Kg7 29. Be2 Rxd1 30. Bxd1 h6 31. c4 Rd7 32. Ke2 Na8 33. Re5 b6 34. Nc3 Nc7 35. Bc2 Rd4 36. g3 h5 37. Bd3 a5 38. Na4 Na6 39. Nxb6 Nb4 40. Bb1 Nc6 41. Rc5 Rd6 42. Na4 Nd4+ 43. Ke3 Bf5 44. Rd5 Bxb1 45. Kxd4 Rxd5+ 46. cxd5 Bxa2 47. Kc4 Bb1 48. Kb5 Kf6 49. d6 Bd3+ 50. Kc6 Be2 51. d7 1-0

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.19"]
[Round "6"]
[White "Tkachev, Ivan"]
[Black "Egorov, Dmitry Petrovich"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2074"]
[BlackElo "2353"]
[PlyCount "60"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 e6 3. Nc3 d5 4. f3 c5 5. e3 Nc6 6. Bb5 Qb6 7. Nge2 Bd7 8. 0-0 a6 9. Ba4 Bd6 10. Kh1 Qc7 11. Bxc6 bxc6 12. Na4 cxd4 13. exd4 Nh5 14. g3 h6 15. Be3 0-0 16. f4 Nf6 17. Nc1 Ne4 18. Nd3 a5 19. Nac5 Nxc5 20. dxc5 Be7 21. Bd4 Rae8 22. Ne5 f6 23. Ng6 Rf7 24. Qh5 Qa7 25. Nh8 Rff8 26. Ng6 Rf7 27. Nh8 Rff8 28. Ng6 Rf7 29. Nh8 Rff8 30. Ng6 Rf7 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.18"]
[Round "5"]
[White "Kuznetsov, Nikolay P"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "2293"]
[BlackElo "2074"]
[PlyCount "82"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. c3 e6 4. e3 Nf6 5. Bd3 b6 6. 0-0 Nbd7 7. c4 Bd6 8. Nc3 Bb7 9. cxd5 exd5 10. b3 0-0 11. Bb2 a6 12. Rc1 Qe7 13. Re1 Ne4 14. Bf1 Ndf6 15. h3 Nxc3 16. Bxc3 Ne4 17. Bb2 f5 18. Ne5 Qh4 19. g3 Qe7 20. Bg2 Rac8 21. Qe2 Rc7 22. Rc2 b5 23. Kh2 c4 24. f3 Nf6 25. Rec1 Rfc8 26. f4 Ne4 27. Bxe4 fxe4 28. Bc3 b4 29. Be1 a5 30. Qh5 Bxe5 31. Qxe5 Qxe5 32. dxe5 cxb3 33. Rxc7 Rxc7 34. Rxc7 b2 35. Rxb7 b1Q 36. e6 Kf8 37. Bf2 Qxa2 38. Kg1 Qc4 39. g4 Qc8 40. Ra7 b3 41. Bh4 b2 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.17"]
[Round "4"]
[White "Tkachev, Ivan"]
[Black "Girya, Olga"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2074"]
[BlackElo "2390"]
[PlyCount "88"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. c4 e6 6. Nc3 Bb4 7. Qb3 a5 8. cxd5 Qxd5 9. Qxd5 exd5 10. f3 h5 11. Nh3 Nd7 12. Nf4 f6 13. exf6 Ngxf6 14. Bd2 0-0 15. 0-0-0 Nb6 16. Bd3 Bxd3 17. Nxd3 Nc4 18. Rde1 Nd7 19. Bg5 Rfe8 20. Rxe8+ Rxe8 21. Re1 Rxe1+ 22. Nxe1 Nf8 23. Nc2 Ne6 24. Bd2 Be7 25. g3 Bf6 26. Ne2 b6 27. Bf4 c5 28. b3 cxd4 29. Ne1 Ne3 30. Nd3 Nf5 31. Kd2 Kf7 32. Ne5+ Ke7 33. Nc6+ Kd7 34. Ne5+ Kd6 35. Nc4+ Kc5 36. Ne5 Nxf4 37. gxf4 Bxh4 38. Nd7+ Kc6 39. Ne5+ Kd6 40. Kd3 Ke6 41. Nc6 Bf2 42. Ne5 Be3 43. Ng6 h4 44. Nf8+ Kd6 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.16"]
[Round "3"]
[White "Yuferev, Oleg"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "2351"]
[BlackElo "2074"]
[PlyCount "80"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. g3 c5 5. Bg2 Nc6 6. 0-0 cxd4 7. Nxd4 Bc5 8. Nxc6 bxc6 9. Qa4 Bd7 10. Qc2 Rc8 11. Nc3 Bb6 12. Bf4 Qe7 13. Qb3 0-0 14. Na4 Ba5 15. Rfd1 e5 16. Bd2 Rb8 17. Qc2 Bxd2 18. Rxd2 d4 19. c5 Nd5 20. a3 Qg5 21. Rdd1 Be6 22. Qd2 Qg6 23. b4 Nf4 24. Nb2 Bh3 25. Bf3 Bg4 26. Bxg4 Qxg4 27. f3 Nh3+ 28. Kf1 Qh5 29. Kg2 Rbe8 30. Nc4 e4 31. Ra2 Ng5 32. f4 Nf3 33. exf3 exf3+ 34. Kf1 Re2 35. Qxe2 fxe2+ 36. Rxe2 Qf3+ 37. Ke1 d3 38. Re3 Qh1+ 39. Kd2 Qg2+ 40. Kxd3 Qd5+ 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.15"]
[Round "2"]
[White "Tkachev, Ivan"]
[Black "Kalegin, Evgenij"]
[Result "1/2-1/2"]
[ECO "A56"]
[WhiteElo "2074"]
[BlackElo "2467"]
[PlyCount "98"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. g3 d6 5. Bg2 g6 6. e4 Bg7 7. Nc3 0-0 8. h3 Na6 9. Be3 Bd7 10. Qd2 Rb8 11. Nb5 Bxb5 12. cxb5 Nc7 13. a4 b6 14. Ne2 a6 15. Nc3 Qd7 16. Qd3 Ra8 17. 0-0 Rfb8 18. Kh2 axb5 19. axb5 Ra5 20. b4 cxb4 21. Na4 Qxb5 22. Qxb5 Nxb5 23. Bxb6 Rxa4 24. Rxa4 b3 25. Rb4 Nd4 26. Bc5 Rxb4 27. Bxb4 Nd7 28. Rb1 Nc5 29. Bxc5 dxc5 30. Bf1 Nf3+ 31. Kg2 Nd2 32. Rb2 c4 33. Bxc4 Nxc4 34. Rxb3 f5 35. Rb4 Nd6 36. f3 Bf8 37. Ra4 Kf7 38. f4 Kf6 39. Ra8 Bh6 40. fxe5+ Kxe5 41. exf5 Nxf5 42. Ra7 Ne3+ 43. Kf3 Nxd5 44. Rxh7 Bc1 45. h4 g5 46. Rg7 gxh4 47. gxh4 Nf6 48. Rg1 Bd2 49. Rd1 Bh6 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.14"]
[Round "1"]
[White "Kopylov, Alexander A"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2444"]
[BlackElo "2074"]
[PlyCount "92"]
[EventDate "2011.10.14"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 144 Extra"]
[Source "ChessBase"]
[SourceDate "2011.10.28"]
[SourceVersion "1"]
[SourceVersionDate "2011.10.28"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 Nf6 3. cxd5 Nxd5 4. g3 c5 5. Bg2 Nc6 6. Nc3 Nc7 7. a3 g6 8. Ne4 e5 9. d3 f5 10. Bg5 Be7 11. Bxe7 Qxe7 12. Nc3 0-0 13. e3 Be6 14. 0-0 Rad8 15. Qc2 c4 16. dxc4 Bxc4 17. Rfc1 Be6 18. Na4 e4 19. Ne1 Na6 20. b4 Ne5 21. Bf1 Rc8 22. Qb2 Qf6 23. Kg2 Nc7 24. Nc5 Bd5 25. Rd1 g5 26. Rxd5 Nxd5 27. Rd1 Ne7 28. Nxb7 Nf3 29. Qa2+ Kh8 30. Nc2 Rc6 31. Nc5 Qh6 32. Qb2+ Qg7 33. Qxg7+ Kxg7 34. Rd7 Rf7 35. Rxa7 g4 36. Bc4 Rh6 37. Bxf7 Rxh2+ 38. Kf1 Kxf7 39. Nb3 Kf6 40. Nbd4 Nd5 41. Ra6+ Kf7 42. Rc6 Nxe3+ 43. fxe3 Rh1+ 44. Ke2 Rh2+ 45. Kf1 Rh1+ 46. Ke2 Rh2+ 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.20"]
[Round "9"]
[White "Tkachev, Ivan"]
[Black "Lupik, Marina"]
[Result "0-1"]
[ECO "E76"]
[WhiteElo "2047"]
[BlackElo "2212"]
[PlyCount "46"]
[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. f4 0-0 7. Nf3 e5 8. Bd3 exf4 9. Bxf4 Nh5 10. Be3 f5 11. 0-0 f4 12. Bf2 Nd7 13. Bh4 Bf6 14. Bf2 Ne5 15. h3 Bd7 16. Be2 Ng3 17. Re1 h5 18. Nxe5 Bxe5 19. Bf3 Qh4 20. Nb5 g5 21. Bxg3 fxg3 22. Nc7 Bd4+ 23. Kf1 g4 0-1

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.19"]
[Round "8"]
[White "Kurilov, Viktor"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "E09"]
[WhiteElo "2312"]
[BlackElo "2047"]
[PlyCount "85"]
[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. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. c4 0-0 6. d4 c6 7. Qc2 a5 8. Nbd2 Nbd7 9. e4 b6 10. b3 Bb7 11. Ne5 c5 12. exd5 exd5 13. Bb2 cxd4 14. Bxd4 Nc5 15. Qb2 Ne6 16. Be3 d4 17. Bxb7 dxe3 18. Nc6 Ba3 19. Qxa3 Qxd2 20. Bxa8 Rxa8 21. Ne7+ Kh8 22. Qc1 Nd4 23. Qxd2 exd2 24. Kg2 Nc2 25. Rab1 Re8 26. Nd5 Nxd5 27. cxd5 Ne1+ 28. Kh3 Re5 29. f4 Rxd5 30. Rfxe1 dxe1Q 31. Rxe1 g6 32. Re7 Kg7 33. Rb7 Rd6 34. Kg4 h5+ 35. Kf3 Rd2 36. Rxb6 Rxa2 37. h3 a4 38. bxa4 Rxa4 39. Rb3 Ra1 40. g4 hxg4+ 41. hxg4 Rf1+ 42. Ke4 Rg1 43. g5 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.18"]
[Round "7"]
[White "Tkachev, Ivan"]
[Black "Khatenever, Feliks"]
[Result "1-0"]
[ECO "A32"]
[WhiteElo "2047"]
[BlackElo "1849"]
[PlyCount "91"]
[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 c5 2. Nf3 e6 3. c4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 d6 7. Bg2 Be7 8. 0-0 Qc7 9. Qd3 Nc6 10. Nxc6 bxc6 11. Na4 Rb8 12. c5 d5 13. Qc3 0-0 14. Bf4 Qa7 15. Bxb8 Qxb8 16. Nb6 e5 17. Nxc8 Rxc8 18. b4 Rd8 19. a3 h5 20. e3 e4 21. f3 h4 22. Qe1 Qe5 23. Qf2 Qh5 24. g4 Qg5 25. h3 exf3 26. Qxf3 Rf8 27. Qf4 Nd7 28. Qxg5 Bxg5 29. e4 Be3+ 30. Kh1 d4 31. Rfd1 Ne5 32. Bf1 Ra8 33. a4 Kf8 34. b5 Nd7 35. bxc6 Nxc5 36. Rab1 Rc8 37. Rb6 Rc7 38. a5 Ke7 39. Bxa6 Nxe4 40. Kg2 Kd6 41. Bb7 Nc3 42. Ra1 Nd5 43. Rb3 Re7 44. a6 d3 45. Rxd3 Kc5 46. Rxd5+ 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.17"]
[Round "6"]
[White "Nadjezhdin, Dmitry"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2329"]
[BlackElo "2047"]
[PlyCount "113"]
[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. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. Qd3 dxc4 6. Qxc4 b5 7. Qd3 b4 8. Ne4 Nd5 9. g3 Be7 10. Bg2 0-0 11. 0-0 f5 12. Nc5 a5 13. Ne5 Bxc5 14. dxc5 Qf6 15. f4 Ba6 16. Qc2 Bb5 17. Rd1 Ra7 18. e4 fxe4 19. Bxe4 g6 20. a4 Ba6 21. Qf2 Rc7 22. Be3 Nd7 23. Bd4 Qe7 24. Re1 N7f6 25. Bc2 Nd7 26. Rad1 Rcc8 27. Nxd7 Qxd7 28. Qg2 Qf7 29. Qe4 Rce8 30. Qe5 Qf6 31. Qd6 Qf7 32. Qxc6 Bb7 33. Qd6 Nf6 34. c6 Bc8 35. Qe5 h6 36. Qxf6 Qxf6 37. Bxf6 Rxf6 38. Re5 Ba6 39. Rxa5 Bc4 40. Be4 Kg7 41. Rd7+ Rf7 42. Raa7 Ref8 43. Kf2 Rxd7 44. Rxd7+ Rf7 45. Ke3 g5 46. Rxf7+ Kxf7 47. Kd4 Ba6 48. fxg5 hxg5 49. Ke5 Ke7 50. h4 gxh4 51. gxh4 Be2 52. Bg6 Bf3 53. c7 Kd7 54. h5 Bxh5 55. Bxh5 Kxc7 56. Kxe6 Kc6 57. b3 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.16"]
[Round "5"]
[White "Tkachev, Ivan"]
[Black "Timirev, Sergey"]
[Result "1-0"]
[ECO "A96"]
[WhiteElo "2047"]
[BlackElo "1823"]
[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. c4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. 0-0 0-0 6. b3 d6 7. d4 d5 8. Nc3 c6 9. a4 Ne4 10. Bb2 Nd7 11. e3 Bd6 12. Qe2 Qe8 13. a5 Qh5 14. Qd1 g5 15. Nxe4 fxe4 16. Ne5 Qxd1 17. Raxd1 Nxe5 18. dxe5 Bb4 19. Ra1 g4 20. Rfd1 Rf7 21. Bd4 Bf8 22. Bf1 Bd7 23. h3 c5 24. Bc3 Bc6 25. hxg4 Be7 26. g5 Bxg5 27. Bh3 Re8 28. Bxe6 Rxe6 29. cxd5 Bxd5 30. Rxd5 Rg6 31. Rxc5 h5 32. Rc8+ Kh7 33. Kg2 Re6 34. Rh1 Kg6 35. Rg8+ Rg7 36. Rxg7+ Kxg7 37. Rxh5 Kg6 38. Rh8 Rc6 39. Bd4 a6 40. Rb8 Rc7 41. g4 Be7 42. Bb6 Rd7 43. e6 Rd6 44. Bc5 Rxe6 45. Re8 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.15"]
[Round "4"]
[White "Kuznetsov, Nikolay P"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2299"]
[BlackElo "2047"]
[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. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. c4 e6 6. Nc3 0-0 7. 0-0 Nbd7 8. Qb3 c6 9. Rd1 Qb6 10. h3 Qxb3 11. axb3 b6 12. e4 a5 13. exd5 exd5 14. Ne5 Nxe5 15. dxe5 Ne4 16. cxd5 Nxc3 17. bxc3 Bxe5 18. Bh6 Re8 19. dxc6 Bc7 20. Bf4 Bxf4 21. gxf4 Be6 22. c4 Red8 23. Rxd8+ Rxd8 24. c5 bxc5 25. Rxa5 c4 26. bxc4 Bxc4 27. c7 Rf8 28. Bd5 Bd3 29. Bb7 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.14"]
[Round "3"]
[White "Tkachev, Ivan"]
[Black "Antipova, Anastasia"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2047"]
[BlackElo "1794"]
[PlyCount "93"]
[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. Nf3 g6 3. Nbd2 d5 4. b3 Bg7 5. Bb2 0-0 6. g3 Nbd7 7. Bg2 c6 8. 0-0 Nb6 9. a4 a5 10. Ne5 Nfd7 11. e4 dxe4 12. Nxd7 Nxd7 13. Bxe4 Nf6 14. Bg2 Bf5 15. c4 Qd7 16. Nf3 Rfd8 17. Ne5 Qc7 18. f4 Be4 19. Bh3 h5 20. Re1 Qd6 21. Re3 e6 22. Bg2 Bxg2 23. Kxg2 c5 24. Rd3 cxd4 25. Rxd4 Qc7 26. Qe2 Rxd4 27. Bxd4 Qd6 28. Rd1 Rd8 29. Rd3 Qc7 30. Qd1 b6 31. Nf3 Rd7 32. Be5 Rxd3 33. Qxd3 Qe7 34. Qd4 Ne8 35. Qxb6 Bxe5 36. Nxe5 Kg7 37. c5 Qc7 38. Qc6 Qd8 39. Qd7 Qxd7 40. Nxd7 Nc7 41. Nb8 f6 42. Kf3 e5 43. fxe5 fxe5 44. Ke4 Kf6 45. Nd7+ Ke6 46. Nxe5 Na6 47. Kd4 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.13"]
[Round "2"]
[White "Ovod, Evgenija"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2420"]
[BlackElo "2047"]
[PlyCount "129"]
[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. Bg5 d5 3. Bxf6 exf6 4. g3 c6 5. Bg2 Bf5 6. Nf3 Qb6 7. Qc1 c5 8. e3 Nc6 9. 0-0 Be7 10. Nc3 Rd8 11. Na4 Qa5 12. Nxc5 Bxc5 13. dxc5 Qxc5 14. c3 a5 15. Nd4 Be6 16. Rd1 0-0 17. Qc2 Ne5 18. Nb3 Qc7 19. Rd4 g6 20. Qe2 Nc4 21. Rad1 a4 22. Nc1 a3 23. bxa3 Nxa3 24. Qb2 Nc4 25. Qb4 Ne5 26. Bxd5 Bxd5 27. Rxd5 Rxd5 28. Rxd5 Qc6 29. Rd6 Nf3+ 30. Kh1 Qc8 31. Kg2 Ng5 32. g4 f5 33. Rd5 Rd8 34. Rxd8+ Qxd8 35. Qd4 Qc8 36. Qd5 Ne4 37. gxf5 Nxc3 38. Qf3 Qxf5 39. Qxf5 gxf5 40. Kf1 Kg7 41. Ke1 f4 42. Kd2 Ne4+ 43. Ke2 fxe3 44. Kxe3 Ng5 45. Nd3 Kf6 46. Nc5 b5 47. f4 Ne6 48. Ne4+ Kf5 49. Nd6+ Kg4 50. Nxb5 Nc5 51. Nd6 f5 52. h3+ Kxh3 53. Kf3 Nd3 54. Nxf5 Ne1+ 55. Ke4 Nc2 56. a4 h5 57. a5 Nb4 58. Kf3 h4 59. Ne3 Kh2 60. Ng4+ Kg1 61. f5 Nc6 62. a6 Nd4+ 63. Kf4 h3 64. a7 Ne2+ 65. Kg5 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.12"]
[Round "1"]
[White "Tkachev, Ivan"]
[Black "Solovjov, Sergey"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2047"]
[BlackElo "2387"]
[PlyCount "68"]
[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. g3 g6 2. Bg2 Bg7 3. Nf3 e5 4. d3 d6 5. c4 f5 6. Nc3 Nf6 7. 0-0 0-0 8. c5 Nc6 9. cxd6 cxd6 10. e4 f4 11. d4 Bg4 12. dxe5 dxe5 13. Qb3+ Kh8 14. Qxb7 Nd4 15. Nxd4 exd4 16. e5 Rb8 17. Qxa7 f3 18. exf6 Qxf6 19. Nd5 Qd8 20. Nf4 fxg2 21. Nxg2 Bh3 22. Qc5 Qd7 23. f3 d3 24. Qf2 Rfe8 25. Re1 Bd4 26. Rxe8+ Rxe8 27. Be3 Bxe3 28. Nxe3 Qd4 29. Ng4 Qb4 30. a3 Qd6 31. Re1 Rxe1+ 32. Qxe1 d2 33. Qd1 Qd4+ 34. Nf2 Qe3 0-1

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.11"]
[Round "9"]
[White "Shipulin, Denis"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2051"]
[BlackElo "2036"]
[PlyCount "94"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. g3 Nf6 2. Bg2 d5 3. d3 e5 4. Nd2 Nc6 5. e4 Bg4 6. Ne2 dxe4 7. dxe4 Bc5 8. h3 Bh5 9. 0-0 Nd4 10. g4 Bg6 11. c3 Ne6 12. Qb3 Bb6 13. Ng3 Qd3 14. c4 0-0-0 15. Nf3 Nc5 16. Qxd3 Nxd3 17. Bg5 Rd6 18. Nf5 Bxf5 19. exf5 e4 20. Ne1 Nxb2 21. Bf4 Rdd8 22. g5 Nh5 23. Bh2 Nxc4 24. Nc2 e3 25. fxe3 Nxe3 26. Nxe3 Bxe3+ 27. Kh1 Bxg5 28. Rab1 c6 29. a4 Rd4 30. Bxc6 b6 31. a5 Bf4 32. Bg1 Rd6 33. Rfc1 Bxc1 34. Rxc1 Ng3+ 35. Kg2 Ne2 36. Rc4 Rxc6 37. Rxc6+ Kd7 38. Rc2 Nxg1 39. Kxg1 Rc8 40. Rd2+ Ke7 41. axb6 axb6 42. Kf2 Rc5 43. f6+ Kxf6 44. Rd6+ Kg5 45. Rxb6 Rc2+ 46. Kg3 Rc3+ 47. Kg2 h5 0-1

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.10"]
[Round "8"]
[White "Tkachev, Ivan"]
[Black "Safronov, Kirill"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2036"]
[BlackElo "1875"]
[PlyCount "105"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Qb5+ Nbd7 7. Qxb7 Bd6 8. Qb5 0-0 9. Qd3 c5 10. Nbd2 c4 11. Qe2 Qc7 12. c3 Qc6 13. 0-0 Ne4 14. Nxe4 dxe4 15. Nd2 Rac8 16. f3 Nf6 17. fxe4 Nxe4 18. Nxe4 Qxe4 19. Qf3 Qh4 20. g3 Qe7 21. e4 f6 22. b4 a5 23. a3 a4 24. Bf4 e5 25. Be3 Rf7 26. dxe5 Bxe5 27. Bf4 Re8 28. Rfe1 Ref8 29. Rad1 g5 30. Be3 Qb7 31. Bc5 Re8 32. Qe3 h6 33. Bd6 Rd7 34. Bxe5 Rxd1 35. Rxd1 Rxe5 36. Rd4 f5 37. Rxc4 fxe4 38. Rd4 Re8 39. Rd6 Rf8 40. Rxh6 Qb5 41. Qe1 Qd5 42. Qe2 Rf3 43. c4 Qd4+ 44. Kg2 Qe5 45. Rc6 g4 46. Rc5 Qe6 47. Rg5+ Kf7 48. Qb2 Rf6 49. Qd4 e3 50. Qa7+ Ke8 51. Qb8+ Kd7 52. Rd5+ Qxd5+ 53. cxd5 1-0

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.09"]
[Round "7"]
[White "Palchun, Grigory"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2144"]
[BlackElo "2036"]
[PlyCount "49"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Be6 7. Nf3 Ne4 8. cxd5 Bxd5 9. Nxe4 Bxe4 10. Bc4 Bd5 11. Qb3 Bxc4 12. Qxc4 Qd6 13. 0-0 e6 14. Qb5 Qb4 15. Qd3 Be7 16. Rfe1 Bxg5 17. Nxg5 Qxd4 18. Qh3 Qd5 19. Qh5 g6 20. Qh6 Qd4 21. Rad1 Qxb2 22. Rb1 Qd4 23. Red1 Qf6 24. Ne4 Qe5 25. Nd6+ 1-0

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.08"]
[Round "6"]
[White "Tkachev, Ivan"]
[Black "Svidinsky, Dmitry"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2036"]
[BlackElo "2124"]
[PlyCount "39"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. e3 c5 7. Be2 cxd4 8. Nxd4 dxc4 9. Bxc4 a6 10. a4 Bd7 11. 0-0 Nc6 12. Nxc6 Bxc6 13. Qe2 Qa5 14. Rfd1 Rfd8 15. e4 Rac8 16. e5 Nd5 17. Nxd5 Bxd5 18. Bxd5 Rxd5 19. Rxd5 Qxd5 20. Qd2 1/2-1/2

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.07"]
[Round "5"]
[White "Penkov, Aleksey"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "1957"]
[BlackElo "2036"]
[PlyCount "108"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. Bxf6 exf6 5. e4 dxe4 6. Qe2 c6 7. 0-0-0 Be7 8. g4 Bg6 9. Bg2 0-0 10. Bxe4 Bxe4 11. Qxe4 Bd6 12. Nge2 Na6 13. h4 Re8 14. Qf3 Qc7 15. g5 f5 16. Qxf5 b5 17. Qg4 Qc8 18. Qf3 b4 19. Ne4 Qe6 20. Nxd6 Qxd6 21. Ng3 Nc7 22. Nf5 Qe6 23. b3 Nd5 24. Rde1 Qxe1+ 25. Rxe1 Rxe1+ 26. Kd2 Re6 27. Ne3 Nc3 28. a4 Rd8 29. Nf5 c5 30. Kd3 Ne4 31. Qf4 cxd4 32. Kc4 a5 33. Qc7 Rde8 34. Nxd4 Re5 35. Nc6 Nd2+ 36. Kd4 Nf3+ 37. Kd3 Re2 38. Qxa5 Rd2+ 39. Kc4 Rxc2+ 40. Kd5 Rd2+ 41. Kc5 Ne5 42. Ne7+ Kf8 43. Nd5 Rc2+ 44. Kb5 Rb8+ 45. Nb6 Nc6 46. Qa6 Ke7 47. a5 Kd6 48. Ka4 Ra2+ 49. Kb5 Kc7 50. Kc4 Rxa5 51. Nd5+ Kd6 52. Qxa5 Nxa5+ 53. Kd4 Nxb3+ 54. Ke4 Re8+ 0-1

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.06"]
[Round "4"]
[White "Tkachev, Ivan"]
[Black "Latonin, Mikhail"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2036"]
[BlackElo "1935"]
[PlyCount "46"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 f5 3. c4 Nf6 4. e3 d5 5. Bd3 c6 6. 0-0 Bd6 7. b3 Qe7 8. a4 a5 9. Qc2 0-0 10. Na3 Bd7 11. cxd5 cxd5 12. Ne5 Rc8 13. Qe2 Rxc1 14. Rfxc1 Bxa3 15. Nxd7 Nbxd7 16. Rc7 Rb8 17. Qc2 Bd6 18. Rc8+ Kf7 19. Rc1 Ne4 20. Rxb8 Bxb8 21. Bxe4 fxe4 22. Qc8 b6 23. g3 Bd6 1/2-1/2

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.05"]
[Round "3"]
[White "Tarasov, Ilya"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1897"]
[BlackElo "2036"]
[PlyCount "105"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Bd3 Bg6 5. b3 e6 6. Bb2 Bd6 7. 0-0 Bh5 8. Nbd2 Nbd7 9. c4 c6 10. Qc2 Qb8 11. Qc3 Bg6 12. Bxg6 hxg6 13. Ne5 Bxe5 14. dxe5 Ng4 15. h3 Qxe5 16. Qxe5 Ngxe5 17. f4 Nd3 18. Bxg7 Rh7 19. Bc3 N7c5 20. Rad1 dxc4 21. Nxc4 0-0-0 22. Bd4 b6 23. a3 Ne4 24. Rxd3 c5 25. Rc1 Kb7 26. Rcd1 cxd4 27. Rxd4 Rxd4 28. Rxd4 Nf6 29. Kf2 Nd5 30. Kf3 b5 31. Ne5 Rg7 32. e4 Nb6 33. Nd7 Rg8 34. Nxb6 Kxb6 35. Rd7 Rc8 36. Rd3 Rc1 37. b4 Kc6 38. Kg4 f6 39. h4 Re1 40. Kf3 Rf1+ 41. Ke2 Rxf4 42. e5 fxe5 43. g3 Rg4 44. Kd2 Rd4 45. Ke2 Rg4 46. Kd2 e4 47. Re3 Kd5 48. Ke2 Ke5 49. Rc3 Kf5 50. Kf2 a6 51. Re3 Ke5 52. Kg2 Kd4 53. Kf2 1/2-1/2

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.04"]
[Round "2"]
[White "Tkachev, Ivan"]
[Black "Letov, Petr"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "2036"]
[BlackElo "2225"]
[PlyCount "84"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. cxd5 exd5 4. d4 c6 5. Bg2 Bf5 6. Nc3 Nf6 7. Nf3 Nbd7 8. Bf4 Ne4 9. 0-0 Qb6 10. Nh4 Nxc3 11. bxc3 Be6 12. Nf3 Be7 13. Qd3 Qa5 14. Ng5 Bxg5 15. Bxg5 Nb6 16. f4 f5 17. g4 0-0 18. Be7 Rf7 19. Bb4 Qa4 20. Bh3 Qb5 21. Qc2 Nc4 22. Qd3 a5 23. a4 Qa6 24. gxf5 Bd7 25. Ba3 Re8 26. Bc1 Qa8 27. f6 Bxh3 28. Qxh3 Rxe2 29. f5 Qe8 30. Bf4 gxf6 31. Bh6 Kh8 32. Rf3 Nd2 33. Re3 Rxe3 34. Bxe3 Rg7+ 35. Kf2 Ne4+ 36. Kf1 Nxc3 37. Re1 Qe4 38. Kf2 Qc2+ 39. Kf3 Ne4 40. Rc1 Ng5+ 41. Bxg5 Qe4+ 42. Kf2 Rxg5 0-1

[Event "St Petersburg Blockade op"]
[Site "St Petersburg"]
[Date "2011.01.03"]
[Round "1"]
[White "Orlov, Sergei"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "1733"]
[BlackElo "2036"]
[PlyCount "78"]
[EventDate "2011.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 140 Extra"]
[Source "ChessBase"]
[SourceDate "2011.03.01"]
[SourceVersion "1"]
[SourceVersionDate "2011.03.01"]
[SourceQuality "1"]

1. c4 e6 2. g3 d5 3. b3 Nf6 4. Bb2 c6 5. Nf3 b5 6. cxb5 cxb5 7. Na3 a6 8. Bg2 Bb7 9. Nc2 Nbd7 10. 0-0 Bd6 11. d4 0-0 12. Ne5 Rc8 13. Kh1 Qc7 14. Nxd7 Qxc2 15. Nxf6+ gxf6 16. Bc1 Qxd1 17. Rxd1 Rc2 18. Bf3 Rfc8 19. Bh6 Ba3 20. Kg2 a5 21. Kh3 Bb2 22. Rab1 b4 23. Kg4 Ba6 24. Rd2 Rxd2 25. Bxd2 Rc2 26. Rd1 f5+ 27. Kh5 Bc3 28. Bh6 Rxe2 29. g4 Rxf2 30. h4 Rxf3 31. Rg1 f4 32. Rg2 Bd3 33. Kg5 Bxd4 34. h5 f6+ 35. Kh4 Bf1 36. g5 f5 37. g6 Bxg2 38. Kg5 Rg3+ 39. Kxf4 Rg4# 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.24"]
[Round "9"]
[White "Tkachev, Ivan"]
[Black "Ljubivyi, Andrey"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "2010"]
[BlackElo "2083"]
[PlyCount "70"]
[EventDate "2010.10.16"]
[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. Nf3 Nf6 3. e3 Bf5 4. b3 e6 5. Bb2 Be7 6. Nbd2 h6 7. Be2 0-0 8. 0-0 c5 9. Ne5 cxd4 10. exd4 Nc6 11. Ndf3 Rc8 12. Nxc6 Rxc6 13. c4 Nd7 14. c5 Bf6 15. b4 Re8 16. Ne5 Bxe5 17. dxe5 b6 18. Qa4 Rc7 19. c6 Nb8 20. b5 a6 21. bxa6 Nxc6 22. Bb5 Qa8 23. Ba3 Rec8 24. Bd6 Ra7 25. Rac1 Na5 26. Rxc8+ Qxc8 27. Qd4 Nc4 28. Rc1 Kh7 29. h4 h5 30. f3 Rxa6 31. Bxa6 Qxa6 32. a3 Qb5 33. Bb4 Qa4 34. Qc3 Qc6 35. Qd4 Qa4 1/2-1/2

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.23"]
[Round "8"]
[White "Koshkarov, Ivan"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B16"]
[WhiteElo "2104"]
[BlackElo "2010"]
[PlyCount "38"]
[EventDate "2010.10.16"]
[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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Nf3 Nd7 8. Bf4 Qb6 9. Qd2 0-0-0 10. Bd3 Bg6 11. Bxg6 hxg6 12. 0-0-0 Bg7 13. Be3 Qa5 14. Kb1 e5 15. d5 Nb6 16. Bxb6 Qxb6 17. c4 e4 18. Nd4 f5 19. Qc3 c5 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.22"]
[Round "7"]
[White "Tkachev, Ivan"]
[Black "Kudin, Artem"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2010"]
[PlyCount "59"]
[EventDate "2010.10.16"]
[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. Nf3 e6 3. e3 c5 4. Bd3 Be7 5. b3 Nc6 6. Bb2 0-0 7. 0-0 d5 8. a3 Qb6 9. dxc5 Qxc5 10. b4 Qd6 11. b5 Nb8 12. Ne5 Nbd7 13. f4 Nc5 14. Bd4 Nxd3 15. cxd3 Nd7 16. a4 f6 17. Nf3 e5 18. Bb2 exf4 19. Nd4 fxe3 20. Nf5 Qe6 21. Qg4 Kf7 22. Qxg7+ Ke8 23. Qxe7+ Qxe7 24. Nxe7 Nc5 25. Ba3 Nxd3 26. Nc3 Bg4 27. Nexd5 e2 28. Nxf6+ Rxf6 29. Rxf6 Kd7 30. Rd6+ 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.21"]
[Round "6"]
[White "Bykov, Evgeny Mikhailovich"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "2059"]
[BlackElo "2010"]
[PlyCount "59"]
[EventDate "2010.10.16"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Ne2 h5 8. Ng3 Bg6 9. h4 e6 10. Be2 Qa5 11. Bf3 Bd6 12. Ne4 Be7 13. Bf4 Qd8 14. g3 Na6 15. 0-0 Qd7 16. Qe2 0-0-0 17. Rfd1 Nc7 18. c4 Bxe4 19. Bxe4 Rdg8 20. Qc2 Bd6 21. Qd2 Rg4 22. Bxd6 Qxd6 23. Bf3 Rgg8 24. d5 c5 25. Qa5 e5 26. b4 Na6 27. b5 Nb4 28. Be4 Qd7 29. Qxa7 f5 30. d6 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.20"]
[Round "5"]
[White "Tkachev, Ivan"]
[Black "Fokin, Anatoly"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2010"]
[BlackElo "1884"]
[PlyCount "119"]
[EventDate "2010.10.16"]
[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. Nf3 Be7 4. e3 Nf6 5. Bd3 c6 6. b3 0-0 7. 0-0 Nbd7 8. Bb2 Ne4 9. cxd5 exd5 10. Ne5 f5 11. f3 Ng5 12. Qc2 Nxe5 13. dxe5 Qb6 14. Bd4 c5 15. Bb2 f4 16. Nc3 Be6 17. Na4 Qc6 18. h4 c4 19. Be2 Bf5 20. e4 dxe4 21. Qxc4+ Ne6 22. Qxc6 bxc6 23. Rac1 Rac8 24. fxe4 Bxe4 25. Bg4 Bd5 26. Nc3 Kf7 27. g3 g5 28. h5 Bc5+ 29. Kh2 Be3 30. Rc2 Rce8 31. Nxd5 cxd5 32. Ba3 Rg8 33. Bxe6+ Kxe6 34. Bd6 Rc8 35. Rb2 Rc6 36. gxf4 Bxf4+ 37. Kg2 Rgc8 38. Rff2 Rc3 39. Rf3 Kf5 40. Re2 Kg4 41. Rxc3 Rxc3 42. Bb4 Rc8 43. e6 Kxh5 44. e7 Re8 45. Re6 g4 46. Rf6 Bg5 47. Rf8 Rxe7 48. Bxe7 Bxe7 49. Rf7 Bc5 50. Rxh7+ Kg5 51. Rd7 Kf4 52. Rxd5 Bb6 53. b4 g3 54. a4 Ke4 55. Rd7 Bf2 56. a5 Ke5 57. b5 Ke6 58. Rh7 Be1 59. b6 axb6 60. axb6 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.19"]
[Round "4"]
[White "Slovitskiy, Jan"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1778"]
[BlackElo "2010"]
[PlyCount "114"]
[EventDate "2010.10.16"]
[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 c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. g4 Bd7 6. c4 e6 7. Nc3 Ne7 8. Qb3 b6 9. Nf3 dxc4 10. Bxc4 Nd5 11. Bd2 a5 12. a3 Na6 13. Rc1 Nac7 14. Bxd5 Nxd5 15. Ne4 Be7 16. Ke2 b5 17. Nc5 Bc8 18. Qc2 Nb6 19. b3 a4 20. bxa4 Nc4 21. Bb4 Qd5 22. Rhd1 0-0 23. Qe4 Bxc5 24. Qxd5 exd5 25. Bxc5 Re8 26. g5 Rxa4 27. Rc3 Bg4 28. Kf1 h5 29. Rdd3 Bxf3 30. Rxf3 Nd2+ 31. Kg2 Nxf3 32. Rxf3 Rc4 33. Re3 Kh7 34. Kg3 Kg6 35. Kf4 f6 36. e6 fxg5+ 37. hxg5 Rc2 38. Ke5 Rxf2 39. e7 h4 40. Kd6 Kf7 41. Kxc6 Rf5 42. Kxb5 Rxg5 43. Rf3+ Ke6 44. Kc6 Rc8+ 45. Kb7 Kd7 46. a4 Rg3 47. Rf5 Rb3+ 48. Ka7 Kc6 49. Rf8 Rbb8 50. Rxc8+ Rxc8 51. Bb6 Re8 52. Bd8 h3 53. a5 h2 54. a6 h1Q 55. Bc7 Rxe7 56. Ka8 Kxc7 57. Ka7 Kc6+ 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.18"]
[Round "3"]
[White "Tkachev, Ivan"]
[Black "Pimenov, Revolt"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2010"]
[BlackElo "2156"]
[PlyCount "26"]
[EventDate "2010.10.16"]
[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 Nf6 3. Nc3 Bb4 4. f3 d5 5. Qb3 c5 6. e3 Nc6 7. a3 Ba5 8. Nge2 e5 9. cxd5 Nxd5 10. dxc5 0-0 11. Bd2 Be6 12. Qc2 Ndb4 13. axb4 Nxb4 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.17"]
[Round "2"]
[White "Svidinsky, Dmitry"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B16"]
[WhiteElo "2172"]
[BlackElo "2010"]
[PlyCount "101"]
[EventDate "2010.10.16"]
[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 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5 7. Nf3 e6 8. g3 Qd5 9. Bg2 Qc4 10. Qe2 Qxe2+ 11. Kxe2 Nd7 12. Nh4 Bc2 13. Be3 0-0-0 14. Rhc1 Bg6 15. f4 Bh5+ 16. Kf1 f5 17. Rab1 Nf6 18. c4 Ne4 19. b4 Bg7 20. d5 Nc3 21. Rb3 Be2+ 22. Kf2 Bxc4 23. Rbxc3 Bxc3 24. Rxc3 Bxd5 25. Nf3 f6 26. Bxa7 Kc7 27. Be3 Kd7 28. a4 Ke7 29. a5 Be4 30. Nd4 Rd5 31. Nb3 Ra8 32. Bb6 e5 33. Bxe4 fxe4 34. fxe5 Rxe5 35. Nc5 h5 36. Nxb7 h4 37. Nc5 Rh8 38. a6 hxg3+ 39. hxg3 Rh2+ 40. Ke3 Rg2 41. Kd4 Rd2+ 42. Ke3 Rg2 43. a7 Rxg3+ 44. Kd4 Rg8 45. Nxe4 Rd5+ 46. Kc4 f5 47. Nc5 Rd1 48. Na6 Ra1 49. Nb8 c5 50. Ba5 Rg4+ 51. Kxc5 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.16"]
[Round "1"]
[White "Tkachev, Ivan"]
[Black "Diakov, Vladislav"]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "2010"]
[PlyCount "81"]
[EventDate "2010.10.16"]
[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. Nf3 g6 3. Nbd2 Bg7 4. c3 0-0 5. e4 d6 6. Bd3 Nbd7 7. 0-0 e5 8. Re1 c5 9. dxe5 Nxe5 10. Nxe5 dxe5 11. Nc4 Re8 12. Bc2 Qc7 13. Qd6 Qxd6 14. Nxd6 Rd8 15. Nc4 Ne8 16. Be3 b6 17. Rad1 Be6 18. Bb3 b5 19. Na5 c4 20. Bc2 Rdc8 21. f4 exf4 22. Bxf4 Bf8 23. Nb7 Bg4 24. Rd2 Rc6 25. e5 a6 26. Be4 Rc7 27. e6 Re7 28. exf7+ Kxf7 29. Nd8+ Kg7 30. Nc6 Re6 31. Ne5 Bc5+ 32. Kh1 Bd6 33. Bxa8 Bxe5 34. Bxe5+ Kf8 35. Bd5 Rb6 36. Rf2+ Ke7 37. Bd4+ Kd8 38. Bxb6+ Kc8 39. Rxe8+ Kd7 40. Rd8+ Ke7 41. Rf7# 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.09"]
[Round "9"]
[White "Kharitonov, Aleksandr"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "E09"]
[WhiteElo "2180"]
[BlackElo "1967"]
[PlyCount "81"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Qc2 Be7 5. g3 c6 6. Nbd2 Nbd7 7. Bg2 0-0 8. 0-0 b6 9. e4 dxe4 10. Ne5 Bb7 11. Nxe4 Nxe5 12. dxe5 Nxe4 13. Bxe4 g6 14. Bh6 Re8 15. h4 Bf8 16. Bg5 Qc7 17. Bf6 Bg7 18. Bxg7 Kxg7 19. f4 Red8 20. Rad1 c5 21. Rd6 Bxe4 22. Qxe4 Rac8 23. Rfd1 Rxd6 24. exd6 Qd7 25. g4 Rc6 26. Kf2 Rc8 27. g5 f6 28. gxf6+ Kxf6 29. Qe5+ Kf7 30. h5 Rg8 31. Rh1 g5 32. fxg5 Ke8 33. g6 Rf8+ 34. Ke1 Qb7 35. Qxe6+ Kd8 36. Qe7+ Qxe7+ 37. dxe7+ Kxe7 38. g7 Rg8 39. h6 a6 40. Rf1 b5 41. b3 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.08"]
[Round "8"]
[White "Tkachev, Ivan"]
[Black "Malinicheva, Lidia"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "1967"]
[BlackElo "2024"]
[PlyCount "91"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. b3 Nf6 2. Bb2 e6 3. c4 c5 4. e3 d6 5. Nf3 Nbd7 6. d4 Ne4 7. Bd3 Qa5+ 8. Nbd2 Nxd2 9. Qxd2 Qxd2+ 10. Nxd2 cxd4 11. Bxd4 Nc5 12. Bc2 Bd7 13. 0-0 e5 14. Bxc5 dxc5 15. Be4 Rb8 16. Rad1 Bd6 17. Bd5 f5 18. Nf3 Bc7 19. Ng5 Ke7 20. Rd2 h6 21. Nf3 g5 22. Rfd1 Be8 23. Ne1 Ba5 24. Rc2 e4 25. f3 Bg6 26. Rf2 Bc3 27. fxe4 fxe4 28. Nc2 b6 29. Rdf1 Rh7 30. Na3 a6 31. Nb1 Ba5 32. Rf6 Rg7 33. Re6+ Kd7 34. Rff6 Bh7 35. Rd6+ Kc7 36. Rc6+ Kd8 37. Rxh6 Rbb7 38. Rcf6 Rbe7 39. Rc6 Ke8 40. Be6 Ra7 41. Bg4 Ke7 42. Rhe6+ Kf8 43. Bh5 Rge7 44. Rf6+ Kg7 45. Bg4 Rf7 46. Rf1 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.07"]
[Round "7"]
[White "Egorova, Ekaterina"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2075"]
[BlackElo "1967"]
[PlyCount "29"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bg4 7. h3 Bxf3 8. Qxf3 e6 9. 0-0 Bd6 10. Qd3 Nbd7 11. Bd2 Qc7 12. Rae1 0-0-0 13. b4 Nb6 14. Ne4 Bf4 15. Bb3 1/2-1/2

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.06"]
[Round "6"]
[White "Tkachev, Ivan"]
[Black "Gaprindashvili, Nona1111"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1967"]
[BlackElo "2042"]
[PlyCount "53"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. d4 c6 5. Nf3 Nf6 6. Bg5 Be7 7. e3 0-0 8. Bd3 Bg4 9. Qc2 h6 10. Bf4 Bxf3 11. gxf3 b5 12. Rg1 Kh8 13. 0-0-0 a5 14. e4 Na6 15. Qd2 Ng8 16. Rxg7 Kxg7 17. Rg1+ Kh8 18. Bxh6 f5 19. Bg7+ Kh7 20. exf5 Bf6 21. Bxf6 Rxf6 22. Qg5 Ra7 23. Qh4+ Nh6 24. Rg6 Qf8 25. Rxf6 Rf7 26. Rxf7+ Qxf7 27. f6+ 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.03"]
[Round "5"]
[White "Dushin, Nikolay"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "D08"]
[WhiteElo "2079"]
[BlackElo "1967"]
[PlyCount "95"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. a3 Nc6 5. Nf3 Nge7 6. Bf4 Be6 7. Nbd2 Ng6 8. Bg3 Qd7 9. Qb3 0-0-0 10. Rc1 h5 11. h4 Bc5 12. Qb5 Be7 13. Nb3 a6 14. Qa4 Bg4 15. Rd1 Ncxe5 16. Qxd7+ Nxd7 17. Nfxd4 c5 18. Nf3 Nb6 19. e4 Rxd1+ 20. Kxd1 f5 21. exf5 Bxf5 22. Ne5 Na4 23. Kc1 Bf6 24. f4 Re8 25. Be2 Nxe5 26. fxe5 Bxe5 27. Bxe5 Rxe5 28. Bxh5 Be6 29. Bd1 Bxc4 30. Nd2 Nb6 31. Nxc4 Nxc4 32. Rf1 Ne3 33. Rf7 Nxg2 34. Bf3 Nxh4 35. Bxb7+ Kb8 36. Rxg7 Nf5 37. Rh7 a5 38. Ba6 Nd4 39. Kd2 Re6 40. Bc4 Re5 41. Bd3 Nf3+ 42. Kc3 Re3 43. Rh1 Ne1 44. Kd2 Rxd3+ 45. Kxe1 Rb3 46. Rh2 c4 47. Kd1 c3 48. Kc1 1/2-1/2

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.02"]
[Round "4"]
[White "Tkachev, Ivan"]
[Black "Yusupova, Lilia"]
[Result "1-0"]
[ECO "D55"]
[WhiteElo "1967"]
[BlackElo "1713"]
[PlyCount "101"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 b6 5. Bg5 Be7 6. e3 0-0 7. cxd5 Nxd5 8. Bxe7 Nxe7 9. Bd3 Nd7 10. Qc2 g6 11. Be4 Rb8 12. 0-0 Bb7 13. Rac1 a6 14. Qd3 c6 15. Qe2 Rc8 16. Rfd1 Nf6 17. Bd3 b5 18. b4 a5 19. a3 axb4 20. axb4 Nfd5 21. Nxd5 Nxd5 22. Qd2 Qd6 23. Rb1 Ra8 24. e4 Ne7 25. e5 Qd7 26. Be4 f5 27. exf6 Rxf6 28. Ne5 Qc7 29. Qg5 Raf8 30. f3 Nf5 31. Ng4 R6f7 32. Bxf5 exf5 33. Nh6+ Kg7 34. Nxf7 Rxf7 35. Re1 Bc8 36. Qe3 Qd6 37. Qe5+ Qxe5 38. Rxe5 g5 39. Rc1 Rf6 40. Re7+ Kg6 41. Rc7 Be6 42. R1xc6 h6 43. Rd6 Bc4 44. Rxf6+ Kxf6 45. Rc6+ Kg7 46. Kf2 h5 47. g3 f4 48. h4 fxg3+ 49. Kxg3 gxh4+ 50. Kxh4 Bd5 51. Rc5 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.04.01"]
[Round "3"]
[White "Orlov, Anatoly"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2023"]
[BlackElo "1967"]
[PlyCount "176"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c6 2. d3 d5 3. Qe2 g6 4. g3 Bg7 5. Bg2 Nf6 6. Nf3 Bg4 7. h3 Bxf3 8. Bxf3 e6 9. 0-0 0-0 10. Bg2 c5 11. e5 Nfd7 12. f4 Nc6 13. c3 Rc8 14. Nd2 b5 15. Nf3 b4 16. c4 Nb6 17. b3 a5 18. Be3 Ne7 19. Bf2 a4 20. g4 d4 21. Bh4 Qc7 22. Nd2 Rfd8 23. Ne4 Rb8 24. Nd6 Rxd6 25. exd6 Qxd6 26. Rae1 Rc8 27. Qf3 Nc6 28. Bg3 Qd7 29. Re2 Bh6 30. h4 Ne7 31. Rfe1 Bg7 32. Kh2 Kh8 33. Bh3 Qc6 34. Qf2 Bh6 35. Bg2 Qd7 36. Qf3 Bg7 37. Bh3 Qc6 38. Rf2 Nd7 39. Qe2 Bh6 40. Qe4 Nb6 41. Rfe2 Nd7 42. Bg2 Qb6 43. Qf3 Bg7 44. Bh3 Bh6 45. g5 Bf8 46. h5 Qc6 47. Bg2 Qxf3 48. Bxf3 Nf5 49. Be4 Ne3 50. Bf2 Bd6 51. Bxe3 dxe3 52. Rf1 f5 53. gxf6 Nxf6 54. hxg6 h6 55. Kh3 Nh5 56. Kg4 Nf6+ 57. Kf3 Rf8 58. Kxe3 Ng4+ 59. Kd2 axb3 60. axb3 Bxf4+ 61. Kc2 Kg7 62. Kb1 e5 63. Ra2 Nf6 64. Ra7+ Kg8 65. g7 Rf7 66. Rxf7 Kxf7 67. Bf3 Kxg7 68. Kc2 Kg6 69. Rg1+ Bg5 70. Kd1 Kf5 71. Ke2 e4 72. dxe4+ Nxe4 73. Bxe4+ Kxe4 74. Rg4+ Kf5 75. Kf3 Ke5 76. Re4+ Kd6 77. Kg4 Bd2 78. Kh5 Bg5 79. Kg6 Bd2 80. Kf5 Kc6 81. Re6+ Kd7 82. Rg6 Kc7 83. Ke6 Bf4 84. Kd5 Be3 85. Rc6+ Kd7 86. Rxc5 h5 87. Rc6 h4 88. Rg6 Bf2 1-0

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "7"]
[White "Alekseenko, Kirill"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2112"]
[BlackElo "1967"]
[PlyCount "107"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bf5 7. Bd2 Qc7 8. Ne5 e6 9. Qe2 Nbd7 10. 0-0-0 Bd6 11. Rhe1 Bxe5 12. dxe5 Nd5 13. g4 Bg6 14. f4 N7b6 15. Bb3 0-0-0 16. Qf2 h5 17. f5 Bh7 18. h3 a6 19. Ne4 hxg4 20. hxg4 exf5 21. gxf5 Qxe5 22. c4 Qxf5 23. Qxf5+ Bxf5 24. cxd5 cxd5 25. Nf2 Nc4 26. Bc3 f6 27. Re7 Rh2 28. Bd4 Rd7 29. Rxd7 Bxd7 30. Nd3 Bf5 31. Nb4 Be4 32. Bxc4 dxc4 33. Bb6 Rh8 34. Nd5 Bd3 35. Nf4 Kd7 36. Nxd3 cxd3 37. Rxd3+ Kc6 38. Bd4 Rf8 39. Rf3 Kd5 40. Bc3 b5 41. Kd2 Kc6 42. Kd3 Re8 43. Rg3 Re7 44. Bb4 Rd7+ 45. Ke4 Kb6 46. Rg2 a5 47. Bf8 g5 48. Kf5 Rf7 49. Bd6 Rd7 50. Ke6 Rh7 51. Kxf6 Rh6+ 52. Ke5 Rg6 53. Be7 g4 54. Kf4 1-0

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "1"]
[White "Artemiev, Vladislav"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2099"]
[BlackElo "1967"]
[PlyCount "87"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Ne5 Bf5 7. g4 Bg6 8. h4 Nbd7 9. Nc4 Qc7 10. h5 Be4 11. Nxe4 Nxe4 12. Qf3 Nd6 13. Bf4 0-0-0 14. 0-0-0 e6 15. Bd3 Nb6 16. Ne5 f6 17. Nc4 Re8 18. Bg3 Nbxc4 19. Bxc4 e5 20. Bd3 Qa5 21. dxe5 fxe5 22. Bf5+ Kc7 23. Kb1 Be7 24. Rhe1 Bf6 25. Re3 Rd8 26. Red3 h6 27. a3 Nc4 28. Ka2 Rxd3 29. Bxd3 Nd6 30. Qe2 Qd5+ 31. Kb1 Rd8 32. f3 Nf7 33. Re1 Nd6 34. Bxe5 Bxe5 35. Qxe5 Qxe5 36. Rxe5 Nf7 37. Re7+ Rd7 38. Rxd7+ Kxd7 39. f4 Kd6 40. Kc1 Kd5 41. Kd2 Nd6 42. Ke3 b5 43. b3 c5 44. Bxb5 1-0

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "9"]
[White "Morozov, Egor"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "1932"]
[BlackElo "1967"]
[PlyCount "60"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. g3 c6 3. Bg2 Nf6 4. Nf3 Bf5 5. 0-0 h6 6. b3 e6 7. Bb2 Nbd7 8. Nbd2 Be7 9. c4 0-0 10. Ne5 Bd6 11. f4 Bb4 12. Ndf3 Nxe5 13. fxe5 Ne4 14. a3 Be7 15. Nd2 Nxd2 16. Qxd2 Bg5 17. Qc3 Be7 18. Rae1 Rc8 19. Kh1 f6 20. exf6 Bxf6 21. e4 dxe4 22. Bxe4 Bxe4+ 23. Rxe4 Bxd4 24. Rxf8+ Qxf8 25. Qxd4 Qf1+ 26. Qg1 Qf3+ 27. Qg2 Qd1+ 28. Qg1 Qf3+ 29. Qg2 Qd1+ 30. Qg1 Qf3+ 1/2-1/2

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "3"]
[White "Sutormin, Danila"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "2025"]
[BlackElo "1967"]
[PlyCount "100"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. cxd5 Nxd5 6. Nc3 Nc6 7. Nf3 e6 8. Bd3 Bb4 9. Bd2 Nf6 10. Bg5 h6 11. Bxf6 Qxf6 12. 0-0 Bxc3 13. bxc3 0-0 14. Qe2 g6 15. h4 h5 16. Rfe1 Bd7 17. Ng5 Rac8 18. g3 a6 19. Ne4 Qe7 20. Qd2 Kg7 21. Ng5 f6 22. Nh3 Be8 23. f4 Qd6 24. Nf2 f5 25. Nh3 b5 26. Ng5 Bd7 27. a3 Na5 28. Re5 Nc6 29. Re3 Na5 30. Rae1 Rfe8 31. Bf1 Nc4 32. Bxc4 Rxc4 33. Qe2 Qxa3 34. Rd3 Qd6 35. Re3 Rc6 36. Re5 Rxc3 37. Nf3 Bc6 38. Rf1 Bxf3 39. Rxf3 Qxd4+ 40. Kg2 Rc1 41. Rf1 Rxf1 42. Qxf1 Kf7 43. Qf3 Re7 44. Qa8 Qd2+ 45. Kh3 Qd1 46. Qc6 b4 47. Kg2 b3 48. Qc8 Rd7 49. Re1 Rd2+ 50. Re2 Qxe2+ 0-1

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "4"]
[White "Tkachev, Ivan"]
[Black "Antonov, Dzhal"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1967"]
[BlackElo "1940"]
[PlyCount "55"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nf6 3. Nf3 e6 4. e3 Be7 5. c4 c6 6. Nc3 Nbd7 7. cxd5 exd5 8. Bd3 0-0 9. 0-0 Re8 10. Bf4 Nh5 11. Be5 f6 12. Ng5 Nf8 13. Qxh5 fxg5 14. f4 g4 15. f5 Bf6 16. Bxf6 gxf6 17. Qxg4+ Kh8 18. Rf3 Nd7 19. Ne2 Nb6 20. b3 Bd7 21. Nf4 Rg8 22. Qh5 Qe7 23. Ng6+ Rxg6 24. fxg6 Rf8 25. Raf1 Nc8 26. Rxf6 Rxf6 27. Rxf6 Qxe3+ 28. Kh1 1-0

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "2"]
[White "Tkachev, Ivan"]
[Black "Kuzmin, Arseniy"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "1967"]
[PlyCount "93"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. Bf4 h6 6. e3 d6 7. h3 Nfd7 8. Be2 e5 9. Bh2 Nc6 10. Qd2 a6 11. 0-0-0 Rb8 12. dxe5 Ndxe5 13. c5 Be6 14. cxd6 cxd6 15. Nd4 Nxd4 16. exd4 Nc4 17. Bxc4 Bxc4 18. Kb1 Rc8 19. Ne4 Rc6 20. Bf4 d5 21. Nc3 Kh7 22. Be3 a5 23. b3 Ba6 24. Rc1 Qd7 25. Na4 Rfc8 26. Rxc6 Qxc6 27. Nc5 Qb5 28. Rc1 Qb6 29. g3 Bb5 30. h4 a4 31. Nxa4 Rxc1+ 32. Kxc1 Bxa4 33. bxa4 Qa6 34. Qc2 Bf8 35. Kb2 Qa5 36. Qb3 b6 37. Qb5 Qb4+ 38. Kc2 Qd6 39. Kd3 Qa3+ 40. Qb3 Qd6 41. Qc3 Qe6 42. a5 b5 43. a3 Qa6 44. Kd2 Qb7 45. Kd3 b4 46. axb4 Bxb4 47. Qb2 1/2-1/2

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "8"]
[White "Tkachev, Ivan"]
[Black "Lushnikov, Evgeny"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "1967"]
[BlackElo "1965"]
[PlyCount "99"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. c4 c5 2. b3 Nc6 3. Bb2 Nf6 4. e3 d5 5. d4 cxd4 6. exd4 Bf5 7. Nd2 e6 8. c5 Be7 9. Ngf3 0-0 10. Bb5 Nb4 11. 0-0 a6 12. Be2 Nc6 13. a3 Ne4 14. b4 Nxd2 15. Qxd2 Be4 16. Ne5 Nxe5 17. dxe5 b6 18. cxb6 Qxb6 19. Bd4 Qd8 20. Qe3 Qd7 21. Rfc1 Qb7 22. f3 Bf5 23. g4 Bg6 24. f4 f5 25. g5 Rfc8 26. Rxc8+ Rxc8 27. Rc1 Be8 28. Bc5 Bb5 29. Bf3 Bxc5 30. Rxc5 Rxc5 31. Qxc5 Qc6 32. Qxc6 Bxc6 33. Be2 Bb5 34. Bxb5 axb5 35. Kf2 Kf7 36. Ke3 h6 37. gxh6 gxh6 38. Kd4 Kg6 39. Kc5 Kh5 40. h3 Kh4 41. Kxb5 Kxh3 42. Kc5 Kg3 43. b5 h5 44. b6 h4 45. b7 h3 46. b8Q h2 47. Qh8 Kg2 48. a4 h1Q 49. Qxh1+ Kxh1 50. a5 1-0

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "6"]
[White "Tkachev, Ivan"]
[Black "Zanan, Evgeny"]
[Result "0-1"]
[ECO "E39"]
[WhiteElo "1967"]
[BlackElo "2111"]
[PlyCount "82"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 0-0 5. Bg5 c5 6. dxc5 Bxc5 7. e3 h6 8. Bh4 Nc6 9. Nf3 Be7 10. Be2 a6 11. 0-0 d6 12. a3 Qc7 13. Rfd1 Bd7 14. Bg3 Rac8 15. Qd2 Ne5 16. Nxe5 dxe5 17. Qc2 Bc6 18. b4 b6 19. Qb2 Qb7 20. f3 e4 21. b5 axb5 22. cxb5 Bd5 23. fxe4 Bxe4 24. Nxe4 Qxe4 25. Bf3 Qxe3+ 26. Bf2 Qg5 27. a4 Bc5 28. Bxc5 Rxc5 29. Rd6 Rf5 30. Qd2 Qg6 31. Qe3 Rc8 32. Rxb6 Rc2 33. Rc6 Rb2 34. Rac1 Rg5 35. g3 Nd5 36. Bxd5 Rxd5 37. Rc8+ Kh7 38. R8c5 Rdd2 39. Qf3 Rxh2 40. b6 Rhd2 41. a5 Rd3 0-1

[Event "RUS-ch U12"]
[Site "Dagomys"]
[Date "2009.04.??"]
[Round "5"]
[White "Zakhartsov, Vladimir"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2051"]
[BlackElo "1967"]
[PlyCount "118"]
[EventDate "2009.04.15"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Bc4 e6 9. Bd2 Qc7 10. 0-0 Nbd7 11. Rfe1 0-0-0 12. Bd3 Nb6 13. Ne4 Nxe4 14. Qxe4 Nd5 15. c3 Bd6 16. Qe2 Bf4 17. Be3 Bh2+ 18. Kh1 Nf4 19. Bxf4 Bxf4 20. b4 h5 21. a4 g5 22. b5 g4 23. g3 Bd6 24. bxc6 gxh3 25. Be4 h4 26. g4 Rhg8 27. Qb5 Rxg4 28. Qxb7+ Qxb7 29. cxb7+ Kb8 30. Bf3 Rf4 31. Re3 Bc7 32. Rg1 e5 33. dxe5 Bb6 34. Bc6 Bxe3 35. fxe3 Rc4 36. Bf3 Rxc3 37. Re1 Rc5 38. e6 fxe6 39. Kh2 Rg8 40. Rd1 Rc3 41. Re1 Rg3 42. Rf1 Rxe3 43. Bc6 Rg8 44. Rf4 Rh8 45. Rf7 Rd8 46. Rf2 Rc3 47. Bh1 e5 48. Re2 Rg3 49. Bc6 Rc3 50. Bh1 Re8 51. Re4 Rd8 52. Re2 Ra3 53. Bc6 Rc3 54. Bh1 e4 55. Bxe4 Re8 56. Kg1 Rc4 57. Bd3 Rc1+ 58. Kf2 Rxe2+ 59. Kxe2 h2 0-1

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.03.31"]
[Round "2"]
[White "Tkachev, Ivan"]
[Black "Ljubarov, Mark"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1967"]
[BlackElo "2051"]
[PlyCount "98"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. 0-0 e6 5. d3 Be7 6. e4 0-0 7. Nbd2 c5 8. Re1 d6 9. c3 Qc7 10. Nf1 Nbd7 11. Bf4 e5 12. Be3 d5 13. exd5 Nxd5 14. d4 exd4 15. cxd4 c4 16. Rc1 b5 17. N1d2 Nb4 18. Bf4 Bd6 19. Bxd6 Qxd6 20. Ne4 Bxe4 21. Rxe4 Nf6 22. Re2 Nxa2 23. Ra1 Nb4 24. Ne5 Nbd5 25. Qc2 a5 26. g4 Ra7 27. g5 Nd7 28. Be4 g6 29. Qd2 Nb4 30. Ng4 f5 31. gxf6 Nxf6 32. Ne5 Nxe4 33. Rxe4 Rf5 34. Ng4 Rf8 35. Rae1 Nd3 36. R1e2 b4 37. Qg5 c3 38. bxc3 bxc3 39. Qe3 Nf4 40. Rc2 Nd5 41. Qd3 Rc7 42. Qb5 Nb4 43. Rc1 Qd5 44. Qxd5+ Nxd5 45. Re5 Nf4 46. Rc2 Rb8 47. h4 a4 48. Nf6+ Kh8 49. Ne4 Rb2 0-1

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2009.03.30"]
[Round "1"]
[White "Kadyrov, Albert"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2123"]
[BlackElo "1967"]
[PlyCount "67"]
[EventDate "2009.03.30"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2012"]
[Source "ChessBase"]
[SourceDate "2011.11.24"]
[SourceVersion "1"]
[SourceVersionDate "2011.11.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. Nf3 Nf6 5. Bc4 c6 6. d4 Bf5 7. Bd2 Qb6 8. Qe2 e6 9. 0-0-0 Nbd7 10. h3 0-0-0 11. Ng5 Bg6 12. Bd3 Re8 13. Bxg6 fxg6 14. Nf7 Rg8 15. Bf4 Bb4 16. Ne4 Nxe4 17. Qxe4 Rgf8 18. Ne5 Nf6 19. Qe2 Nd5 20. Bg3 Qa5 21. c4 Nf4 22. Bxf4 Rxf4 23. g3 Rff8 24. Kb1 Bd6 25. f4 Bxe5 26. dxe5 Rd8 27. Qg4 Rfe8 28. Qh4 Rxd1+ 29. Rxd1 Rd8 30. Rxd8+ Qxd8 31. Qxd8+ Kxd8 32. Kc2 c5 33. Kd3 Ke7 34. Ke4 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.11"]
[Round "9"]
[White "Tkachev, Ivan"]
[Black "Goldobin, Mikhail"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "1950"]
[BlackElo "2127"]
[PlyCount "92"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd2 Bd6 7. Bd3 dxc4 8. Bxc4 e5 9. Qb3 0-0 10. 0-0 e4 11. Ng5 Qe7 12. f3 exf3 13. Nxf3 Nb6 14. Rae1 Nxc4 15. Qxc4 Ne4 16. Nxe4 Qxe4 17. Bb4 Be6 18. Qc3 Bxb4 19. Qxb4 Bd5 20. Rf2 Rae8 21. a3 b6 22. Qd2 f6 23. Qc2 Qg4 24. h3 Qg3 25. e4 Be6 26. Nh2 Bxh3 27. Qd2 Be6 28. Rf3 Qd6 29. Rfe3 Rd8 30. Nf3 Bg4 31. Rd3 Bxf3 32. gxf3 Qg3+ 33. Kf1 Rd6 34. f4 Qg4 35. Qf2 Rfd8 36. Red1 h5 37. R1d2 h4 38. Rf3 Qe6 39. Qe3 Qc4+ 40. Qd3 Qc1+ 41. Rd1 Qxb2 42. Qc4+ Kf8 43. Rfd3 Qh2 44. Rf3 h3 45. Rdd3 Qg2+ 46. Ke1 h2 0-1

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.10"]
[Round "8"]
[White "Kuzmin, Egor"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "D52"]
[WhiteElo "1961"]
[BlackElo "1950"]
[PlyCount "95"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 0-0 9. Be2 a6 10. h4 c5 11. 0-0 cxd4 12. exd4 Qc7 13. c5 h6 14. Bxf6 Nxf6 15. a3 Bxc3 16. Qxc3 Bd7 17. Bf3 Bb5 18. Rfe1 a5 19. b4 b6 20. a4 axb4 21. Qxb4 bxc5 22. Qxb5 Qf4 23. Qd3 Qxd4 24. Qxd4 cxd4 25. Nb3 Rfb8 26. Nc5 Rb4 27. Reb1 Rc4 28. Rc1 Rb4 29. Rab1 Rxb1 30. Rxb1 e5 31. Bd1 e4 32. Rb5 d3 33. a5 d4 34. f3 Nd5 35. Nxe4 Nc3 36. Nxc3 dxc3 37. Rc5 c2 38. Bxc2 dxc2 39. Rxc2 Rxa5 40. g4 f5 41. Rc4 fxg4 42. fxg4 Kf7 43. Kf2 Ra3 44. Rf4+ Ke6 45. Rb4 Rh3 46. h5 Ra3 47. Rb5 Kf6 48. Kg2 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.09"]
[Round "7"]
[White "Tkachev, Ivan"]
[Black "Tkachev, Taras"]
[Result "1/2-1/2"]
[ECO "D06"]
[WhiteElo "1950"]
[BlackElo "1964"]
[PlyCount "23"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Bf5 3. e3 Nf6 4. c4 e6 5. Qb3 Nc6 6. Qxb7 Nb4 7. Na3 Rb8 8. Qxa7 Ra8 9. Qb7 Rb8 10. Qa7 Ra8 11. Qb7 Rb8 12. Qa7 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.08"]
[Round "6"]
[White "Senkevich, Konstantin"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2079"]
[BlackElo "1950"]
[PlyCount "47"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Ne5 Bf5 7. g4 Bg6 8. h4 e6 9. f3 Bd6 10. h5 Bxe5 11. dxe5 Qxe5+ 12. Ne2 Be4 13. fxe4 Qxe4 14. Rg1 Nxg4 15. Bg2 Qf5 16. Qd4 Nf6 17. Qb4 b6 18. Bf4 e5 19. Bg3 Nxh5 20. Bh4 Nf6 21. 0-0-0 Qe6 22. Nd4 Na6 23. Nxe6 Nxb4 24. Nxg7+ 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.07"]
[Round "5"]
[White "Tkachev, Ivan"]
[Black "Babakhin, Anton"]
[Result "1-0"]
[ECO "D58"]
[WhiteElo "1950"]
[BlackElo "1986"]
[PlyCount "85"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Bg5 Nf6 3. Nf3 e6 4. e3 Be7 5. c4 0-0 6. Nc3 h6 7. Bh4 b6 8. Bd3 Bb7 9. 0-0 Nbd7 10. Bg3 Ne4 11. Qb3 Nxg3 12. hxg3 dxc4 13. Bxc4 c5 14. Rfd1 Bxf3 15. gxf3 cxd4 16. Rxd4 Bf6 17. Rd2 Qe7 18. Bb5 Nc5 19. Qa3 Rac8 20. Rc1 Rfd8 21. Rcd1 Rxd2 22. Rxd2 Bxc3 23. Qxc3 Qb7 24. Rc2 Rc7 25. Qd4 a6 26. Be2 Rd7 27. Qc4 a5 28. a3 Qd5 29. Qb5 Qd6 30. b4 axb4 31. axb4 Nb7 32. Rc6 Qd5 33. Qxd5 Rxd5 34. Rxb6 Nd8 35. b5 Kf8 36. Rb8 Ke7 37. b6 Kd7 38. f4 Ra5 39. Kg2 f6 40. b7 Nc6 41. Ra8 Rc5 42. Bf3 Kc7 43. Bxc6 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.06"]
[Round "4"]
[White "Penkov, Aleksey"]
[Black "Tkachev, Ivan"]
[Result "1/2-1/2"]
[ECO "C13"]
[WhiteElo "2010"]
[BlackElo "1950"]
[PlyCount "99"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 e6 5. Nxe4 Be7 6. Bxf6 gxf6 7. Nf3 b6 8. Bd3 Bb7 9. Qe2 Nd7 10. 0-0-0 c6 11. Rhe1 Qc7 12. g3 0-0-0 13. Qe3 h6 14. Qe2 Rhg8 15. Ba6 f5 16. Ned2 Bg5 17. Bxb7+ Kxb7 18. Ne5 Nxe5 19. dxe5 f4 20. h4 Be7 21. gxf4 Rd4 22. Qf3 Bxh4 23. Rh1 Be7 24. Rxh6 Rgd8 25. Rhh1 f6 26. c3 Rd3 27. Qe2 fxe5 28. Rh7 R3d7 29. fxe5 Bg5 30. Rxd7 Rxd7 31. Kc2 Rd5 32. Nc4 Qh7+ 33. Rd3 b5 34. Nd6+ Kc7 35. c4 bxc4 36. Nxc4 Qf5 37. Kc3 Bf4 38. b4 Rxd3+ 39. Qxd3 Bxe5+ 40. Nxe5 Qxe5+ 41. Qd4 Qe1+ 42. Kb2 Qe2+ 43. Kb3 Kb7 44. a4 Qf3+ 45. Qe3 Qd1+ 46. Ka3 Qa1+ 47. Kb3 Qd1+ 48. Ka3 Qa1+ 49. Kb3 Qb1+ 50. Ka3 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.05"]
[Round "3"]
[White "Tkachev, Ivan"]
[Black "Belov, Mikhail"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "1950"]
[BlackElo "2025"]
[PlyCount "74"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 Be7 5. c4 0-0 6. Nc3 c6 7. Bd3 h6 8. Bh4 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. 0-0 Nd7 12. a3 b5 13. Bd3 Bb7 14. Nxd5 exd5 15. b4 a5 16. Qb3 Nb6 17. Ne5 Nc4 18. Qc3 Ra7 19. e4 Rfa8 20. exd5 cxd5 21. Bxc4 dxc4 22. Rab1 axb4 23. Qxb4 Qg5 24. f3 Qe3+ 25. Kh1 f6 26. Ng4 Qxd4 27. Qxb5 Ba6 28. Qc6 c3 29. Rfc1 Rc8 30. Qe6+ Kh8 31. Ne3 Qc5 32. Nd5 c2 33. Rb4 Rd8 34. Ne3 Re7 35. Qxa6 Qxe3 36. Rbb1 cxb1Q 37. Rxb1 Qb3 0-1

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.04"]
[Round "2"]
[White "Safronov, Kirill"]
[Black "Tkachev, Ivan"]
[Result "0-1"]
[ECO "B01"]
[BlackElo "1950"]
[PlyCount "64"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 c6 6. Nf3 Bf5 7. Ne5 e6 8. Bf4 Nbd7 9. 0-0 Bb4 10. Ne2 Nxe5 11. Bxe5 Be7 12. c3 b5 13. Bd3 Bxd3 14. Qxd3 0-0 15. Qg3 Ne8 16. Qf3 Rc8 17. Qg3 Bf6 18. f4 g6 19. Qf3 Bg7 20. Bxg7 Nxg7 21. g4 Qb6 22. Qe3 c5 23. Rf3 f6 24. Raf1 Rfe8 25. Qf2 a5 26. Qh4 cxd4 27. Nxd4 e5 28. fxe5 fxe5 29. Qh6 exd4 30. Rf7 dxc3+ 31. R1f2 Qd4 32. bxc3 Re1+ 0-1

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "2009.01.03"]
[Round "1"]
[White "Tkachev, Ivan"]
[Black "Nikolaev, Vadim S"]
[Result "0-1"]
[ECO "D53"]
[WhiteElo "1950"]
[BlackElo "2143"]
[PlyCount "108"]
[EventDate "2009.01.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bg5 Nbd7 4. e3 e6 5. c4 Be7 6. Nc3 c6 7. Bd3 dxc4 8. Bxc4 Nd5 9. Bxe7 Qxe7 10. 0-0 Nxc3 11. bxc3 e5 12. Qb3 e4 13. Nd2 0-0 14. f3 exf3 15. Rxf3 Nf6 16. e4 b5 17. Bd3 Bg4 18. Rg3 Bh5 19. Qc2 Bg6 20. e5 Bxd3 21. exf6 Bxc2 22. Rxg7+ Kh8 23. fxe7 Kxg7 24. exf8Q+ Rxf8 25. Re1 Kf6 26. Nf3 Bf5 27. Ne5 Be6 28. Nxc6 a6 29. Nb4 a5 30. Nd3 Bxa2 31. Ra1 Bc4 32. Ne5 Ra8 33. Nd7+ Kf5 34. Nb6 Ra6 35. Nd7 a4 36. Nc5 Ra7 37. Ra3 Kf4 38. Kf2 Re7 39. g3+ Kg4 40. h3+ Kxh3 41. Kf3 Re1 42. Nxa4 Rf1+ 43. Ke3 Kxg3 44. Nb2 Re1+ 45. Kd2 Re2+ 46. Kc1 f5 47. Nxc4 bxc4 48. Ra5 f4 49. Rg5+ Kh4 50. Rg1 f3 51. Rh1+ Kg3 52. Rxh7 f2 53. Rg7+ Kf3 54. Rf7+ Ke3 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2009.??.??"]
[Round "4"]
[White "Feofanov, Denis"]
[Black "Tkachev, Ivan"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2330"]
[BlackElo "1990"]
[PlyCount "68"]
[EventDate "2009.10.??"]
[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. Nf3 c6 3. c4 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Nc3 e6 7. Ne5 Nc6 8. g4 Bg6 9. h4 h6 10. Nxg6 fxg6 11. Bd3 Bd6 12. Bxg6+ Kd7 13. Bd2 Qb6 14. Qe2 a6 15. 0-0 Raf8 16. f4 Ne7 17. Bd3 g5 18. Na4 Qa7 19. fxg5 hxg5 20. h5 Neg8 21. Qg2 Nh6 22. Be2 Ne4 23. Be1 e5 24. Nc3 Rxf1+ 25. Bxf1 exd4 26. Nxd5 Nc5 27. exd4 Ne6 28. Bf2 Rf8 29. Re1 Nxd4 30. Rd1 Bc5 31. Kh1 a5 32. Bxd4 Bxd4 33. Qe4 Kc8 34. Qe6+ Kb8 1-0

