[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.30"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Palchun, Grigory"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2193"]
[BlackElo "2206"]
[PlyCount "109"]
[EventDate "2012.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. Rb1 d6 6. b4 a6 7. d3 f5 8. e3 Nf6 9. Nge2 0-0 10. 0-0 Rb8 11. a4 Be6 12. Nd5 Ne7 13. Nxf6+ Bxf6 14. b5 axb5 15. Rxb5 c6 16. Rb1 d5 17. c5 Bg7 18. d4 e4 19. Bd2 g5 20. f4 exf3 21. Bxf3 Ng6 22. Rb3 Qc7 23. Bh5 Rbe8 24. h4 gxh4 25. gxh4 Bf6 26. Be1 Qg7 27. Kh2 Qh6 28. Nf4 Nxf4 29. Rxf4 Re7 30. Rf2 Rg7 31. Rg2 Kh8 32. Rxg7 Qxg7 33. Qf3 Rg8 34. Qg3 Qh6 35. Qf3 f4 36. Qxf4 Qxf4+ 37. exf4 Bxd4 38. Bg3 Bc8 39. f5 Rf8 40. a5 Kg7 41. Bd6 Rxf5 42. Bg4 Rf2+ 43. Kg3 Bxg4 44. Rxb7+ Kg6 45. Kxg4 h5+ 46. Kg3 Ra2 47. Rb6 Rxa5 48. Rxc6 Kf5 49. Rc8 Ra3+ 50. Kg2 Ke6 51. Re8+ Kd7 52. Re7+ Kc6 53. Rc7+ Kb5 54. Rb7+ Kc6 55. Rc7+ 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.29"]
[Round "8"]
[White "Markevich, Ilya"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "B70"]
[WhiteElo "2209"]
[BlackElo "2193"]
[PlyCount "79"]
[EventDate "2012.03.22"]
[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 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Nb3 Nf6 7. Be2 0-0 8. 0-0 d6 9. Bg5 b6 10. Kh1 Bb7 11. f4 a5 12. a4 Nb4 13. Bf3 d5 14. Bxf6 Bxf6 15. e5 Bg7 16. Nb5 e6 17. N3d4 Qd7 18. c3 Nc6 19. Qb3 Nxd4 20. Nxd4 Ba6 21. Rfe1 Bc4 22. Qc2 Rac8 23. Rad1 Rfe8 24. b3 Ba6 25. Be2 Bxe2 26. Rxe2 f6 27. exf6 Bxf6 28. Qd3 Bxd4 29. Qxd4 Qc6 30. Re3 Qc5 31. Qd3 Qa3 32. Qb5 Qc5 33. Qe2 Kf7 34. h3 Qa3 35. Re1 Qd6 36. f5 e5 37. Qg4 Kg7 38. Qg3 Qc7 39. Qg5 Qe7 40. Qg3 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.28"]
[Round "7"]
[White "Vunder, Yakov"]
[Black "Opanasenko, Mikhail"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "2193"]
[BlackElo "2033"]
[PlyCount "43"]
[EventDate "2012.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 e4 4. Nd4 c6 5. d3 exd3 6. Qxd3 d5 7. Bg5 dxc4 8. Qe3+ Qe7 9. Qf4 Nbd7 10. e3 Qb4 11. 0-0-0 Bd6 12. Qh4 Be5 13. f4 Bc7 14. Nf5 Qf8 15. Bxc4 a6 16. e4 b5 17. e5 Ng8 18. Rhe1 bxc4 19. Nd6+ Bxd6 20. exd6+ Ne5 21. Rxe5+ Kd7 22. Re7+ 1-0

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.27"]
[Round "6"]
[White "Bekhovskiy, Mikhail"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "1887"]
[BlackElo "2193"]
[PlyCount "118"]
[EventDate "2012.03.22"]
[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 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. c3 Be7 6. Nxc6 bxc6 7. Bd3 d6 8. 0-0 Nf6 9. Bg5 0-0 10. Nd2 Re8 11. Qc2 h6 12. Bh4 Nh5 13. Bxe7 Qxe7 14. Nf3 Nf4 15. Rfe1 Bg4 16. Nd2 Qg5 17. g3 Nh3+ 18. Kg2 Bd7 19. Bf1 a5 20. Nf3 Qf6 21. Ng1 Ng5 22. f4 Nh7 23. Nf3 c5 24. e5 Qf5 25. Qxf5 Bxf5 26. Kf2 Rab8 27. b3 d5 28. Red1 c6 29. Bd3 Bxd3 30. Rxd3 a4 31. Nd2 f6 32. Re1 fxe5 33. Rxe5 Rxe5 34. fxe5 axb3 35. axb3 Kf7 36. Re3 Ke6 37. h4 Nf8 38. Ke2 Nd7 39. Ke1 Rf8 40. Nf3 Rf5 41. Kd2 Nxe5 42. Nxe5 Rxe5 43. Rf3 Rf5 44. Re3+ Kd6 45. Rd3 Rf2+ 46. Kc1 g5 47. hxg5 hxg5 48. Re3 g4 49. Kd1 Rf3 50. Rxf3 gxf3 51. Ke1 Ke5 52. Kf2 Ke4 53. g4 d4 54. cxd4 cxd4 55. g5 d3 56. g6 d2 57. g7 d1Q 58. g8Q Qe2+ 59. Kg1 f2+ 0-1

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.26"]
[Round "5"]
[White "Vunder, Yakov"]
[Black "Suvorov, Aleksandr2"]
[Result "0-1"]
[ECO "A50"]
[WhiteElo "2193"]
[BlackElo "2050"]
[PlyCount "152"]
[EventDate "2012.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. d4 Bg7 6. 0-0 0-0 7. Nc3 d6 8. Qc2 Nbd7 9. e4 e5 10. d5 a5 11. Ne1 Ne8 12. Nd3 f5 13. f4 Ba6 14. fxe5 dxe5 15. b3 Nd6 16. Bb2 Qg5 17. Rae1 Rae8 18. Bc1 Qd8 19. a4 Bc8 20. Ba3 Rf7 21. Bh3 Ref8 22. exf5 gxf5 23. Nb5 e4 24. Nf4 Nc5 25. Bb2 Qg5 26. Nd4 Re8 27. Re3 Nd3 28. Bc3 Nxf4 29. Rxf4 Be5 30. Ne6 Bxf4 31. Nxf4 Rfe7 32. Qb2 Qh6 33. Bf1 Kf7 34. Be2 Rg8 35. Bh5+ Kf8 36. Qf2 Nf7 37. Bxf7 Rxf7 38. Be5 Ke8 39. Qb2 Re7 40. Qd4 Rg4 41. Kh1 Kf7 42. Qb2 Kg8 43. Bd4 Qd6 44. Nh5 Rg6 45. Bf6 Rf7 46. Be5 Qe7 47. Nf4 Rh6 48. h4 c6 49. Qd4 Qc5 50. Qd2 cxd5 51. cxd5 Bd7 52. Rc3 Qb4 53. Nd3 exd3 54. Qxh6 Qe4+ 55. Kh2 Qe2+ 56. Kg1 Qxe5 57. Qg5+ Rg7 58. Qd8+ Be8 59. Rxd3 Rxg3+ 60. Rxg3+ Qxg3+ 61. Kf1 Qf3+ 62. Kg1 Qe3+ 63. Kh2 Qe5+ 64. Kg1 f4 65. d6 Qe3+ 66. Kg2 f3+ 67. Kg3 f2+ 68. Kg2 Kf7 69. d7 Qe4+ 70. Kxf2 Qd4+ 71. Kg3 Bxd7 72. h5 Qe5+ 73. Kg2 Bc6+ 74. Kg1 Qe1+ 75. Kh2 Qf2+ 76. Kh3 Bg2+ 0-1

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.25"]
[Round "4"]
[White "Kiseleva, Arina"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "1928"]
[BlackElo "2193"]
[PlyCount "64"]
[EventDate "2012.03.22"]
[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. cxd5 exd5 5. Bg5 c6 6. Nc3 Be7 7. Qc2 g6 8. e3 Bf5 9. Bd3 Bxd3 10. Qxd3 0-0 11. Bh6 Re8 12. 0-0 Nbd7 13. Rab1 a5 14. Qc2 Bd6 15. Bg5 Qc7 16. Rfc1 Rac8 17. a3 Ne4 18. Bh4 f5 19. b4 axb4 20. axb4 b5 21. Qb3 Nxc3 22. Rxc3 Nb6 23. Bg3 Nc4 24. Bxd6 Qxd6 25. Rbc1 Ra8 26. Ne5 Ra7 27. Nd3 Rea8 28. Qd1 Ra2 29. R3c2 R2a3 30. Rc3 Ra2 31. R3c2 R2a3 32. Rc3 Ra2 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.24"]
[Round "3"]
[White "Vunder, Yakov"]
[Black "Shchukin, Dmitry"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2193"]
[BlackElo "2356"]
[PlyCount "69"]
[EventDate "2012.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. Nc3 d6 5. e3 f5 6. d3 Nf6 7. Nge2 0-0 8. 0-0 c6 9. Rb1 Be6 10. f4 Nbd7 11. b3 Kh8 12. Qd2 Qa5 13. Bb2 Rad8 14. Rbd1 Rfe8 15. h3 Bg8 16. Kh2 d5 17. cxd5 cxd5 18. d4 exd4 19. Nxd4 a6 20. Rfe1 Qb6 21. Na4 Qd6 22. Rc1 Ne4 23. Bxe4 dxe4 24. Qc3 Nf6 25. Qc7 Bd5 26. Qxd6 Rxd6 27. Rc7 Red8 28. Re2 h5 29. Kg2 Kg8 30. Rec2 Ne8 31. Rc8 Kf7 32. Rxd8 Rxd8 33. Nb6 Bxd4 34. Bxd4 Ke6 35. Kf2 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.23"]
[Round "2"]
[White "Abramov, Nikita"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1932"]
[BlackElo "2193"]
[PlyCount "112"]
[EventDate "2012.03.22"]
[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 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nc6 6. Be3 Nf6 7. Nc3 d6 8. Be2 0-0 9. 0-0 Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. f3 a5 13. Be3 Nd7 14. a4 Nc5 15. Bd1 Qb6 16. Rb1 Qb4 17. Nd5 Bxd5 18. Qxd5 Rfd8 19. Bd2 Qb6 20. Be3 Qb4 21. Bd2 Qb6 22. Be3 e6 23. Qd2 Qc6 24. Qc2 Na6 25. Rc1 Rac8 26. b3 Nb4 27. Qb1 Qa6 28. Re1 d5 29. cxd5 exd5 30. Be2 Qe6 31. Rxc8 Rxc8 32. Rd1 f5 33. Rc1 fxe4 34. Rxc8+ Qxc8 35. fxe4 Qc3 36. Bf2 Qd2 37. Bf3 Bd4 38. Bxd4 Qxd4+ 39. Kf1 Nd3 40. Qc2 dxe4 41. Bg4 Qa1+ 42. Bd1 Qf6+ 43. Kg1 Qd4+ 44. Kf1 Qe3 45. Qe2 Qf4+ 46. Kg1 Qc1 47. Kf1 Nb2 48. Ke1 Qxd1+ 49. Qxd1 Nxd1 50. Kxd1 Kf7 51. Kd2 Ke6 52. Ke3 Ke5 53. h3 b6 54. h4 h6 55. g4 h5 56. g5 Kd5 0-1

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2012.03.22"]
[Round "1"]
[White "Vunder, Yakov"]
[Black "Kokhnover, Ilya"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "2193"]
[BlackElo "1773"]
[PlyCount "51"]
[EventDate "2012.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 0-0 5. Bg2 d5 6. d4 c6 7. Qb3 Bd6 8. 0-0 b6 9. Bf4 Ba6 10. cxd5 exd5 11. Ne5 Qe7 12. Rfe1 Bxe5 13. Bxe5 Nfd7 14. Bf4 Nf6 15. e4 Re8 16. Bd2 dxe4 17. Nxe4 Nxe4 18. Bxe4 Qd7 19. Bf5 Qd8 20. Bg5 Rxe1+ 21. Rxe1 Qf8 22. Be7 Qe8 23. Bb4 Qd8 24. Re7 Kh8 25. Qxf7 Qg8 26. Re8 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.11.05"]
[Round "9"]
[White "Vunder, Andrei"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2282"]
[BlackElo "2221"]
[PlyCount "28"]
[EventDate "2011.10.28"]
[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. cxd5 exd5 5. Nc3 c6 6. Qc2 Be7 7. Bg5 g6 8. e4 dxe4 9. Bxf6 Bxf6 10. Qxe4+ Kf8 11. Bc4 Kg7 12. 0-0 Re8 13. Qf4 Be6 14. Bxe6 Rxe6 1/2-1/2

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.11.04"]
[Round "8"]
[White "Vunder, Yakov"]
[Black "Minina, Veronika"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "2221"]
[BlackElo "2120"]
[PlyCount "97"]
[EventDate "2011.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e3 e5 6. Nge2 c6 7. 0-0 d6 8. d3 Qe7 9. Rb1 h5 10. h3 Nh7 11. e4 h4 12. f4 hxg3 13. f5 Qh4 14. Qe1 Bh6 15. Qxg3 Qxg3 16. Nxg3 Bxc1 17. Rbxc1 Nd7 18. Rcd1 Kg7 19. d4 a6 20. Rf2 Rh8 21. Rfd2 Nhf6 22. a4 a5 23. Rf1 Nf8 24. d5 c5 25. Nb5 Ra6 26. Rdf2 g5 27. Re1 Rb6 28. Nf1 N8d7 29. Nh2 Ne8 30. Nf3 f6 31. Bf1 Kf7 32. Re3 Nf8 33. Rg2 Rg8 34. h4 gxh4 35. Rxg8 Kxg8 36. Nxh4 Bd7 37. Rg3+ Kh7 38. Be2 Ra6 39. Bh5 Bxb5 40. axb5 Ra8 41. Bf7 b6 42. Ng6 Nc7 43. Ne7 Nd7 44. Bg8+ Kh8 45. Rh3+ Kg7 46. Rh7+ Kf8 47. Be6 Nxe6 48. dxe6 Nb8 49. Nd5 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.11.03"]
[Round "7"]
[White "Lobanov, Sergei"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "C93"]
[WhiteElo "2029"]
[BlackElo "2221"]
[PlyCount "50"]
[EventDate "2011.10.28"]
[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 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. d5 Ne7 13. Nf1 Ng6 14. Ng3 Nf4 15. Bc2 Bd7 16. Bxf4 exf4 17. Ne2 Nxe4 18. Nxf4 Ng5 19. Nd4 Rxe1+ 20. Qxe1 Qf6 21. Qd2 Re8 22. f3 Qe5 23. h4 Nh7 24. Kf2 Nf6 25. Bb3 Nh5 1/2-1/2

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.11.02"]
[Round "6"]
[White "Vunder, Yakov"]
[Black "Gorjunov, Sergey"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2221"]
[BlackElo "2087"]
[PlyCount "93"]
[EventDate "2011.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. e4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 Bd7 9. 0-0 0-0 10. Qd2 a6 11. f3 Rb8 12. Rfd1 Qa5 13. Nb3 Qb4 14. c5 Be6 15. cxd6 Bxb3 16. dxe7 Nxe7 17. axb3 Qxb3 18. Bc5 Qe6 19. Qd6 Qc8 20. Bd4 Qe6 21. Qxe6 fxe6 22. Bc4 Kf7 23. Bxf6 Bxf6 24. Rd6 Rfd8 25. Rad1 Nc6 26. Bxe6+ Ke7 27. Rxd8 Rxd8 28. Rxd8 Kxd8 29. Kf2 h6 30. Ke3 g5 31. Bd5 Kc7 32. g3 Bd4+ 33. Kd3 Bg1 34. h3 Bf2 35. Bxc6 Kxc6 36. Ne2 Kc5 37. f4 b5 38. e5 Kd5 39. Nc3+ Ke6 40. Ke4 Bxg3 41. f5+ Kd7 42. Nd5 a5 43. b3 h5 44. f6 Bf2 45. Kf5 Bc5 46. e6+ Ke8 47. Nc7+ 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.11.01"]
[Round "5"]
[White "Maevsky, Nikolay"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "2326"]
[BlackElo "2221"]
[PlyCount "59"]
[EventDate "2011.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. Qc2 c6 7. e3 Nbd7 8. 0-0-0 b6 9. h4 Bb7 10. Bd3 Rc8 11. Kb1 c5 12. cxd5 exd5 13. Bxf6 Nxf6 14. Bf5 Ra8 15. g4 g6 16. g5 Nh5 17. Bg4 Ng7 18. Ne5 f6 19. gxf6 Bxf6 20. f4 Bxe5 21. dxe5 d4 22. Rh2 Qe8 23. Ne4 Bxe4 24. Qxe4 dxe3 25. h5 e2 26. Bxe2 Ne6 27. Bc4 Kg7 28. hxg6 hxg6 29. Rdh1 Rg8 30. Bxe6 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.10.31"]
[Round "4"]
[White "Vunder, Yakov"]
[Black "Kondratiev, Denis"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2221"]
[BlackElo "1960"]
[PlyCount "103"]
[EventDate "2011.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bc5 5. Nf3 0-0 6. 0-0 d6 7. d3 Be6 8. a3 a5 9. h3 h6 10. e3 Ba7 11. Qc2 Qd7 12. Kh2 d5 13. cxd5 Nxd5 14. Bd2 f5 15. Rad1 f4 16. Nxd5 fxg3+ 17. fxg3 Bxd5 18. e4 Be6 19. Bc3 a4 20. Rc1 Bb3 21. Qd2 Qe6 22. Nh4 Rad8 23. Nf5 Rd7 24. Rf3 Rfd8 25. h4 Bc4 26. Bf1 Nb8 27. Qc2 Bb3 28. Qd2 Na6 29. Bh3 Qc6 30. Bd4 Qxc1 31. Qxc1 Bxd4 32. Nxh6+ gxh6 33. Bxd7 Rxd7 34. Qxh6 Rg7 35. Qh5 Bf7 36. Qf5 Bxb2 37. Qc8+ Kh7 38. Qxb7 Bxa3 39. Qxa6 Bb3 40. Qc8 Bd6 41. d4 exd4 42. e5 Bb4 43. Qf5+ Kg8 44. Qc8+ Kh7 45. Rf5 Bf7 46. e6 Bg6 47. Rf4 Bc5 48. h5 Bc2 49. Rf7 d3 50. Rxg7+ Kxg7 51. Qxc7+ Kf6 52. Qxc5 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.10.30"]
[Round "3"]
[White "Mikhailov, Ivan"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1931"]
[BlackElo "2221"]
[PlyCount "54"]
[EventDate "2011.10.28"]
[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. g3 c5 5. cxd5 Nxd5 6. Bg2 cxd4 7. Nxd4 Be7 8. 0-0 0-0 9. e4 Nb4 10. Nc3 N8c6 11. Nxc6 bxc6 12. Qa4 Ba6 13. Rd1 Qb6 14. Be3 c5 15. Rd2 Rad8 16. Rad1 Nc6 17. a3 Rxd2 18. Rxd2 Ne5 19. b4 Nc4 20. Bxc5 Bxc5 21. bxc5 Qxc5 22. Rc2 Nxa3 23. Ra2 Qxc3 24. Qxa6 Nc2 25. Qa5 Qd3 26. Qxa7 Nd4 27. Ra1 g6 1/2-1/2

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.10.29"]
[Round "2"]
[White "Vunder, Yakov"]
[Black "Kravtsov, Andrei"]
[Result "1-0"]
[ECO "A18"]
[WhiteElo "2221"]
[BlackElo "1989"]
[PlyCount "87"]
[EventDate "2011.10.28"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 Ne4 5. d4 Bb4 6. Qc2 c5 7. cxd5 exd5 8. dxc5 Qa5 9. Bd3 Nd7 10. Nge2 Ndxc5 11. 0-0 Nxd3 12. Qxd3 Nxc3 13. bxc3 Be7 14. Qg3 Bf5 15. Nd4 Bg6 16. Nb3 Qc7 17. Be3 0-0 18. f4 f5 19. Rac1 Qc4 20. Rfd1 Rfd8 21. Qf2 b6 22. Rd4 Qc6 23. Rd2 Ba3 24. Rcc2 Rac8 25. Qf3 Qc4 26. Rd4 Qc6 27. c4 Qa8 28. Rcd2 Rxc4 29. Rxd5 Rxd5 30. Qxd5+ Qxd5 31. Rxd5 Be8 32. Rd8 Kf7 33. Ra8 Rc7 34. Bxb6 axb6 35. Rxa3 Bb5 36. Nd4 Bc4 37. Nxf5 Ke6 38. Ne3 Be2 39. Kf2 Bh5 40. Ra6 Rc6 41. Ra7 g5 42. f5+ Kxe5 43. g4 Be8 44. Re7+ 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2011.10.28"]
[Round "1"]
[White "Stroganov, Anatoly"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1866"]
[BlackElo "2221"]
[PlyCount "116"]
[EventDate "2011.10.28"]
[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. e3 Nf6 4. Bd3 c5 5. b3 Nc6 6. 0-0 Qc7 7. Bb2 Bd6 8. a3 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. Bxe5 Qxe5 12. Nd2 0-0 13. h3 h6 14. c4 Rd8 15. Qc2 Be6 16. Rac1 Rac8 17. Rfd1 Qg5 18. f4 Qh5 19. cxd5 Nxd5 20. Nf1 f5 21. Kh2 Qf7 22. Bc4 a6 23. Be2 Re8 24. Re1 b5 25. Qb2 Nf6 26. b4 c4 27. Bf3 Bd5 28. Nd2 Ne4 29. Bxe4 Bxe4 30. Nxe4 Rxe4 31. Qd2 Qe6 32. Kg3 Rc6 33. Rc3 Rd6 34. Qc2 g5 35. fxg5 hxg5 36. Kf2 Qe5 37. Re2 Rf6 38. g3 f4 39. gxf4 gxf4 40. Kf1 fxe3+ 41. Kg1 Rf2 42. Rxf2 exf2+ 43. Kg2 Rf4 44. Qg6+ Qg7 45. Qxg7+ Kxg7 46. Kf1 Kf6 47. Rc2 Rf3 48. Rxf2 Rxf2+ 49. Kxf2 Kg5 50. Ke3 Kh4 51. Kd4 Kxh3 52. a4 Kg4 53. axb5 axb5 54. Kc5 c3 55. Kxb5 c2 56. Ka6 c1Q 57. b5 Qc7 58. b6 Qb8 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.22"]
[Round "9"]
[White "Ershov, Valentin"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2031"]
[BlackElo "2221"]
[PlyCount "76"]
[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 e6 3. c4 Nf6 4. g3 c5 5. Bg2 cxd4 6. cxd5 Nxd5 7. 0-0 Be7 8. Nxd4 0-0 9. Qb3 Nc6 10. Nxc6 bxc6 11. e4 Nf6 12. Rd1 Qb6 13. Qxb6 axb6 14. Be3 Ng4 15. Bxb6 Rb8 16. Bd4 e5 17. Bc3 Bc5 18. Rd2 f5 19. b4 Bxb4 20. Bxb4 Rxb4 21. Nc3 f4 22. Bf1 f3 23. a4 Nf6 24. a5 Bb7 25. a6 Ba8 26. Ra4 c5 27. Ra5 Nxe4 28. Nxe4 Rxe4 29. Rxc5 Re1 30. Rdc2 Be4 31. Rc1 Rxc1 32. Rxc1 Rd8 33. h3 Kf7 34. Re1 Bc6 35. Rc1 Be4 36. Re1 Bc6 37. Rc1 Be4 38. Re1 Bc6 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.21"]
[Round "8"]
[White "Vunder, Yakov"]
[Black "Ivanov, Sergei V"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2221"]
[BlackElo "2055"]
[PlyCount "86"]
[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. Nf3 g6 3. c4 Bg7 4. Nc3 d6 5. e4 0-0 6. Be2 Nc6 7. d5 Ne5 8. Nxe5 dxe5 9. 0-0 Ne8 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. h4 gxh4 14. Bxh4 Bf6 15. Bxf6 Nxf6 16. Qe1 Rf7 17. Qh4 Rg7 18. Kf2 Qd6 19. Rh1 Qb6+ 20. Kf1 Qxb2 21. Qe1 Qb6 22. Rb1 Qd6 23. Nb5 Qd8 24. Qc3 Rg5 25. c5 a6 26. Qa5 b6 27. Qa3 Rb8 28. Nc3 Qf8 29. d6 exd6 30. cxb6 cxb6 31. Bxa6 Be6 32. Qb4 Rg7 33. Bc4 Qf7 34. Bxe6 Qxe6 35. Rh6 Qe7 36. Qc4+ Kh8 37. Qc6 Qd8 38. Nb5 Ng8 39. Rh5 Rg6 40. Rd1 Rc8 41. Qb7 Rg7 42. Qd5 Rc5 43. Qxd6 Qe8 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.20"]
[Round "7"]
[White "Dushin, Nikolay"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1993"]
[BlackElo "2221"]
[PlyCount "66"]
[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. b3 Nf6 3. Bb2 e6 4. e3 Be7 5. Be2 0-0 6. 0-0 c5 7. Ne5 Nfd7 8. f4 Nxe5 9. fxe5 Nc6 10. d4 f6 11. Bd3 fxe5 12. Rxf8+ Bxf8 13. dxe5 Qg5 14. Qe1 Nxe5 15. Bxe5 Qxe5 16. Nd2 Bd7 17. Nf3 Qf6 18. e4 e5 19. Rd1 d4 20. Qg3 Bd6 21. Rf1 h6 22. Bc4+ Kh8 23. Bd5 Bb5 24. Rf2 Rf8 25. Bxb7 c4 26. Ne1 Qxf2+ 27. Qxf2 Rxf2 28. Kxf2 Bc5 29. bxc4 d3+ 30. Kf1 d2 31. Ke2 dxe1Q+ 32. Kxe1 Bxc4 33. a4 Kh7 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.19"]
[Round "6"]
[White "Vunder, Yakov"]
[Black "Lisitsin, Boris"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2221"]
[BlackElo "1977"]
[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 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Bg7 5. d4 cxd4 6. exd4 d6 7. Be2 Nh6 8. d5 Ne5 9. Nxe5 dxe5 10. g4 Bd7 11. h4 Qc8 12. f3 f5 13. g5 Nf7 14. h5 gxh5 15. Rxh5 f4 16. Bd3 Bf5 17. Qa4+ Kf8 18. Ne4 Bg6 19. Rh2 Bxe4 20. Bxe4 Nxg5 21. Qc2 Nxe4 22. Qxe4 Qc5 23. Rg2 Bf6 24. Bd2 Rc8 25. b3 h5 26. 0-0-0 b5 27. Kb1 bxc4 28. Rc1 Rd8 29. bxc4 Rb8+ 30. Ka1 Qa3 31. Rc2 h4 32. Bc1 Qc5 33. a3 a5 34. Ka2 a4 35. Rb2 Rc8 36. Rbc2 h3 37. Rh2 Rb8 38. Qf5 Rb3 39. Rxh3 Rxh3 40. Qxh3 e4 41. Qh6+ Ke8 42. Qg6+ Kd8 43. Qxe4 Qd4 44. Qxd4 Bxd4 45. Bxf4 Rxf3 46. Bd2 Kd7 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.18"]
[Round "5"]
[White "Gudkina, Zhanna"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "C93"]
[WhiteElo "1781"]
[BlackElo "2221"]
[PlyCount "91"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Bc2 Bd7 13. Nf1 g6 14. Ng3 Bg7 15. Bd2 Na5 16. a4 Nc4 17. Bc1 c5 18. d5 bxa4 19. Bxa4 Qb6 20. Bxd7 Nxd7 21. b3 Na5 22. Be3 Reb8 23. Nd2 Qc7 24. h4 h5 25. Rb1 Rb5 26. c4 Rb4 27. Nf3 Rab8 28. Bd2 R4b7 29. Bxa5 Qxa5 30. Ra1 Qb6 31. Nd2 Bf6 32. Nxh5 gxh5 33. Qxh5 Kg7 34. Qg4+ Kf8 35. Re3 Ke7 36. Nf1 Rh8 37. Ng3 Rbb8 38. Nf5+ Kd8 39. h5 Kc7 40. Rg3 Ra8 41. h6 Qb8 42. Qh5 Qf8 43. Kf1 Bd8 44. Rg7 Bf6 45. Rxf7 Qe8 46. Qg6 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.17"]
[Round "4"]
[White "Vunder, Yakov"]
[Black "Shmoilov, Dmitry"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2221"]
[BlackElo "1998"]
[PlyCount "64"]
[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 e5 2. g3 g6 3. Bg2 Bg7 4. Nc3 f5 5. e3 Nf6 6. Nge2 0-0 7. d3 d6 8. 0-0 Nc6 9. Rb1 a5 10. a3 Be6 11. Nd5 Bf7 12. Nec3 Kh8 13. Bd2 Rb8 14. Qa4 Be8 15. Qb3 Nxd5 16. Nxd5 b6 17. f4 Bf7 18. Rbe1 Ne7 19. e4 b5 20. Bxa5 bxc4 21. Qxc4 Nxd5 22. exd5 Rxb2 23. Bc3 Rxg2+ 24. Kxg2 Qa8 25. Kg1 Bxd5 26. Qb5 Rb8 27. Qa5 Qxa5 28. Bxa5 e4 29. Bxc7 Bd4+ 30. Rf2 Rb2 31. Ref1 e3 32. Rxb2 e2+ 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.16"]
[Round "3"]
[White "Tugarin, Anton"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2014"]
[BlackElo "2221"]
[PlyCount "170"]
[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. c4 e6 3. Nf3 Nf6 4. g3 c5 5. cxd5 Nxd5 6. Bg2 cxd4 7. 0-0 Be7 8. Nxd4 0-0 9. Nc3 Nxc3 10. bxc3 e5 11. Nc2 Nc6 12. Ne3 Qa5 13. Qb3 Bc5 14. a4 Qb6 15. Qc2 Be6 16. Rb1 Qc7 17. Qb2 Rab8 18. Nd5 Qa5 19. Qb5 Rfd8 20. Be3 Bxe3 21. Nxe3 a6 22. Qb6 Qxb6 23. Rxb6 Na5 24. Rfb1 Rbc8 25. Bxb7 Nxb7 26. Rxb7 Rxc3 27. R7b6 Ra8 28. Kg2 g6 29. Rb8+ Rxb8 30. Rxb8+ Kg7 31. Rb6 Bc8 32. a5 Rc5 33. f3 Rxa5 34. Nc4 Ra2 35. Kf2 Bd7 36. Nxe5 Bb5 37. Ke3 Rxe2+ 38. Kd4 f6 39. Rb7+ Kf8 40. Ng4 Re7 41. Rb6 Rd7+ 42. Kc5 Kg7 43. Nxf6 Rf7 44. Ne4 Rxf3 45. Rb7+ Rf7 46. Rb6 Bd3 47. Nd6 Re7 48. Kd4 Bf1 49. h4 a5 50. Rb1 Bh3 51. Ra1 Ra7 52. Ra3 a4 53. Nc4 Be6 54. Nd2 Kf6 55. Rf3+ Ke7 56. Ra3 Bf5 57. Re3+ Kf6 58. Nc4 Bc2 59. Rf3+ Kg7 60. Na3 Bb3 61. Nb5 Rd7+ 62. Kc3 Rf7 63. Re3 Kf6 64. Rf3+ Ke5 65. Re3+ Kd5 66. Kb4 Rb7 67. Re1 Kc6 68. Rc1+ Kd7 69. Rc5 Ke6 70. Kc3 Kf6 71. g4 Re7 72. g5+ Kg7 73. Nd6 h6 74. Ra5 hxg5 75. hxg5 Re6 76. Nb7 Re7 77. Nd6 Rd7 78. Ne4 Rd5 79. Rxd5 Bxd5 80. Nf2 a3 81. Kc2 Kf7 82. Nh3 Bc4 83. Kb1 Ke6 84. Nf4+ Kf5 85. Nxg6 Kxg6 1/2-1/2

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.15"]
[Round "2"]
[White "Vunder, Yakov"]
[Black "Savchenko, Boris"]
[Result "0-1"]
[ECO "D11"]
[WhiteElo "2221"]
[BlackElo "2630"]
[PlyCount "49"]
[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. d4 c6 3. e3 Bg4 4. c4 e6 5. Nc3 Nd7 6. Be2 Ngf6 7. 0-0 Bd6 8. b3 0-0 9. Bb2 Qb8 10. Qc2 Rc8 11. Rac1 b5 12. cxd5 cxd5 13. Qd3 a6 14. Nh4 b4 15. Na4 Bxh2+ 16. Kh1 Rxc1 17. Bxc1 Bxe2 18. Qxe2 Ne4 19. Nf3 Bd6 20. Bd2 Qb5 21. Re1 Rc8 22. Kg1 Rc2 23. Qd1 Qd3 24. Bc1 Nxf2 25. Nb2 0-1

[Event "Chigorin Memorial 19th"]
[Site "St Petersburg"]
[Date "2011.10.14"]
[Round "1"]
[White "Maletin, Pavel"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2579"]
[BlackElo "2221"]
[PlyCount "128"]
[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 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 e5 6. 0-0 Nge7 7. a3 0-0 8. Rb1 a5 9. Ne1 d6 10. Nc2 Be6 11. Ne3 Rb8 12. d3 f5 13. Ned5 Bf7 14. Bd2 b6 15. b4 axb4 16. axb4 cxb4 17. Nxe7+ Nxe7 18. Nb5 d5 19. Bxb4 dxc4 20. dxc4 Bf6 21. Bd6 Rc8 22. c5 e4 23. Na7 Rxc5 24. Bxc5 bxc5 25. Qc2 Qa5 26. Nb5 Ba2 27. Rbc1 c4 28. Nd6 Qa6 29. Nb7 Bb3 30. Nc5 Qb5 31. Nxb3 cxb3 32. Qc5 Qxc5 33. Rxc5 b2 34. Rb5 Rc8 35. f3 e3 36. f4 Rc1 37. Rb3 Nc8 38. Bd5+ Kf8 39. Rb8 Ke7 40. Rb7+ Kd8 41. Ba2 Nd6 42. Rb4 Ne4 43. Rxe4 fxe4 44. Bb1 Bc3 45. Bxe4 Be1 46. Kg2 b1Q 47. Bxb1 Rxb1 48. Kf3 Rc1 49. Kxe3 Bd2+ 50. Kf2 Be3+ 51. Kg2 Rxf1 52. Kxf1 Kd7 53. Kg2 Kd6 54. Kf3 Bc1 55. e4 Kc5 56. Kg4 Kd4 57. e5 h6 58. h4 Kd5 59. h5 g5 60. Kf5 gxf4 61. gxf4 Bd2 62. Kg4 Ke6 63. f5+ Kxe5 64. Kf3 Kxf5 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.20"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Polyaninov, Aleksey Vladimirovi"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2212"]
[BlackElo "2365"]
[PlyCount "95"]
[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 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nc3 Bb4 5. Nd5 Bc5 6. e3 0-0 7. Ne2 d6 8. 0-0 Nxd5 9. cxd5 Ne7 10. d4 Bb6 11. e4 Bg4 12. f3 Bd7 13. Be3 c6 14. dxc6 Bxc6 15. Qb3 d5 16. dxe5 dxe4 17. Bxb6 axb6 18. fxe4 Ba4 19. Qb4 Qc7 20. Nc3 Qc5+ 21. Qxc5 bxc5 22. e6 fxe6 23. Bh3 Bd7 24. Rad1 Rxf1+ 25. Kxf1 Rf8+ 26. Ke2 Bc8 27. Na4 e5 28. Bxc8 Rxc8 29. Rd7 Nc6 30. Rxb7 Nd4+ 31. Ke3 c4 32. Nb6 Rc5 33. Nd5 Ra5 34. a3 h5 35. Re7 Rb5 36. Rxe5 Nc2+ 37. Kd2 Rxb2 38. Kc1 Ra2 39. Nc3 Ne1 40. Nxa2 Nd3+ 41. Kc2 Nxe5 42. a4 Kf7 43. a5 Ke6 44. a6 Nc6 45. Kc3 Ke5 46. Kxc4 Kxe4 47. Kc5 Na7 48. Nc3+ 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.19"]
[Round "8"]
[White "Emdin, Mark"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "B25"]
[WhiteElo "2068"]
[BlackElo "2212"]
[PlyCount "98"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 e6 6. Be3 d6 7. f4 Nge7 8. Nf3 Nd4 9. 0-0 0-0 10. e5 Nef5 11. Bf2 Nxf3+ 12. Qxf3 Nd4 13. Qd1 dxe5 14. fxe5 Bxe5 15. Ne4 f5 16. Nxc5 Qc7 17. b4 Nb5 18. a4 Bxa1 19. Qxa1 Nd6 20. Qe5 Ne8 21. Bd4 Qxe5 22. Bxe5 Nf6 23. Nxb7 Bxb7 24. Bxb7 Rad8 25. b5 Ng4 26. Bc3 Ne3 27. Rc1 Rf7 28. Bc6 Nd5 29. Bd2 Ne7 30. Bg2 Nc8 31. a5 e5 32. Bc3 e4 33. dxe4 Rc7 34. Bf6 Rd2 35. exf5 Rcxc2 36. Rxc2 Rxc2 37. Bd5+ Kf8 38. fxg6 hxg6 39. Bd4 Nd6 40. b6 axb6 41. axb6 Ke7 42. b7 Rc1+ 43. Kg2 Rb1 44. Bc5 Kd7 45. Bxd6 Kxd6 46. Be4 Rb2+ 47. Kh3 g5 48. Kg4 Ke5 49. Bc6 Kf6 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.18"]
[Round "7"]
[White "Vunder, Yakov"]
[Black "Vlasenko, Miroslav"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2212"]
[BlackElo "2371"]
[PlyCount "62"]
[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 Nc6 2. g3 e5 3. Bg2 f5 4. Nc3 Nf6 5. e3 d5 6. cxd5 Nb4 7. a3 Nd3+ 8. Ke2 e4 9. f3 c6 10. Nh3 cxd5 11. Nf2 Bc5 12. Nxd3 exd3+ 13. Kf2 d4 14. Na4 Be7 15. b4 Be6 16. Bf1 Qd5 17. Bxd3 Rd8 18. Nb2 0-0 19. Bc4 dxe3+ 20. Kg2 Qd7 21. dxe3 Bxc4 22. Qxd7 Rxd7 23. Nxc4 Rc8 24. Nd2 Rc2 25. Rd1 Nd5 26. Kh1 Bf6 27. Nb3 Bxa1 28. Nxa1 Nxe3 29. Rg1 Rc3 30. f4 Ng4 31. Rf1 Rd1 0-1

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.17"]
[Round "6"]
[White "Mokshanov, Alexey"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2372"]
[BlackElo "2212"]
[PlyCount "86"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d3 Bg7 4. g3 Nc6 5. Bg2 e6 6. 0-0 Nge7 7. c3 0-0 8. Be3 b6 9. Qc1 Re8 10. Bh6 Bh8 11. Nbd2 Ba6 12. Qc2 d6 13. Rad1 Qd7 14. h3 Rac8 15. Rfe1 b5 16. Nh4 b4 17. f4 f5 18. exf5 Nxf5 19. Nxf5 gxf5 20. Nf3 Qf7 21. Qa4 Bb7 22. cxb4 Qh5 23. bxc5 Qxh6 24. cxd6 Qg7 25. Ng5 Qd4+ 26. Qxd4 Bxd4+ 27. Kh2 Rcd8 28. Nxe6 Rxd6 29. Nxd4 Rxe1 30. Rxe1 Rxd4 31. Rc1 Nd8 32. Bxb7 Nxb7 33. Rc8+ Nd8 34. Rc3 Ne6 35. Kg2 h5 36. h4 Kf7 37. Kf3 a5 38. Ke3 Rd8 39. Rb3 Rg8 40. Kf2 Rc8 41. Ke3 Rg8 42. Kf2 Rc8 43. Ke3 Rg8 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.16"]
[Round "5"]
[White "Vunder, Yakov"]
[Black "Opanasenko, Mikhail"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2212"]
[BlackElo "2017"]
[PlyCount "67"]
[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 e6 2. Nf3 Nf6 3. Nc3 d5 4. d4 Be7 5. cxd5 exd5 6. Bg5 c6 7. Qc2 0-0 8. e3 Nbd7 9. Bd3 Re8 10. h3 Nf8 11. 0-0 Ne4 12. Bf4 Nxc3 13. bxc3 Bd6 14. Bxd6 Qxd6 15. c4 Bd7 16. Rab1 Rab8 17. Ne5 Ng6 18. f4 Nf8 19. cxd5 cxd5 20. Nxd7 Nxd7 21. Bxh7+ Kh8 22. Bf5 Nb6 23. Qf2 g6 24. Bd3 Qe6 25. Rbe1 f5 26. g4 Re7 27. gxf5 gxf5 28. Kh2 Nd7 29. Rg1 Rh7 30. Rg5 Rf8 31. Reg1 Nb6 32. Qg3 Qe8 33. Bxf5 Rh6 34. Rh5 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.15"]
[Round "4"]
[White "Popov, Valerij"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2550"]
[BlackElo "2212"]
[PlyCount "82"]
[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 d5 2. d4 e6 3. c4 Nf6 4. Nc3 Be7 5. Bf4 0-0 6. Rc1 c5 7. dxc5 Bxc5 8. e3 Nc6 9. a3 Be7 10. Qc2 h6 11. Be2 a6 12. 0-0 Bd6 13. Rfd1 Bxf4 14. exf4 Qd6 15. g3 Rd8 16. b4 Qe7 17. c5 e5 18. fxe5 Nxe5 19. Nd4 Bh3 20. Na4 Re8 21. Nb6 Rad8 22. Bf1 Bg4 23. Re1 Qc7 24. Bg2 Bh5 25. Qc3 Bg6 26. Re3 Ne4 27. Nxd5 Rxd5 28. Bxe4 Bxe4 29. Rxe4 Red8 30. Nf5 f6 31. a4 Qd7 32. Nd6 Qxa4 33. b5 Rd1+ 34. Re1 Rd3 35. Qb2 Nf3+ 36. Kg2 Nxe1+ 37. Rxe1 axb5 38. Re7 Qa6 39. Qe2 R3xd6 40. Qg4 Qc6+ 41. Kh3 Qc8 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.14"]
[Round "3"]
[White "Vunder, Yakov"]
[Black "Senkevich, Konstantin"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2212"]
[BlackElo "2020"]
[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. c4 e5 2. g3 f5 3. Bg2 Nf6 4. Nc3 g6 5. e3 Bg7 6. Nge2 0-0 7. 0-0 Nc6 8. d3 d6 9. Rb1 a5 10. a3 Be6 11. Nd5 Qd7 12. Nec3 Rab8 13. Qa4 Ra8 14. Bd2 Nh5 15. f4 h6 16. Qb5 Rab8 17. Ne2 exf4 18. Nexf4 Nxf4 19. Nxf4 Bf7 20. Bxa5 g5 21. Nd5 Rfc8 22. Bc3 Bg6 23. Bxg7 Qxg7 24. Qb3 Kh7 25. Qc3 Ne5 26. e4 Rf8 27. exf5 Rxf5 28. Be4 Rxf1+ 29. Rxf1 Bxe4 30. dxe4 g4 31. Rf4 b6 32. Nf6+ Kh8 33. Nxg4 Nxg4 34. Qxg7+ Kxg7 35. Rxg4+ Kf6 36. Kf2 b5 37. cxb5 Rxb5 38. Rf4+ Ke6 39. b4 Rb7 40. Rf5 c6 41. Ke3 d5 42. Rh5 Ra7 43. exd5+ cxd5 44. Kd4 Rxa3 45. Rxh6+ Kd7 46. Kxd5 1-0

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.13"]
[Round "2"]
[White "Zheleznaykov, Peter"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D63"]
[WhiteElo "1962"]
[BlackElo "2212"]
[PlyCount "76"]
[EventDate "2011.08.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 dxc4 8. Bxc4 a6 9. 0-0 c5 10. dxc5 Nxc5 11. b4 Ncd7 12. a3 b5 13. Be2 Bb7 14. Qd4 h6 15. Bh4 Nb6 16. Rfd1 Qxd4 17. Nxd4 Rfc8 18. Nb3 Nc4 19. Bxc4 Rxc4 20. Na5 Rxh4 21. Nxb7 Rc4 22. Na5 Rc7 23. Ne2 Rac8 24. Rxc7 Rxc7 25. Rc1 Rxc1+ 26. Nxc1 Nd5 27. Nd3 Nc3 28. Nc6 Bd6 29. Nd4 Kf8 30. h3 Ke8 31. Kf1 Kd7 32. Ke1 Kc7 33. Nc2 Kb6 34. Kd2 Ne4+ 35. Ke2 Nc3+ 36. Kd2 Ne4+ 37. Ke2 Nc3+ 38. Kd2 Ne4+ 1/2-1/2

[Event "St Petersburg Botvinnik 100 op"]
[Site "St Petersburg"]
[Date "2011.08.12"]
[Round "1"]
[White "Vunder, Yakov"]
[Black "Sedlak, Nikola"]
[Result "0-1"]
[ECO "A24"]
[WhiteElo "2212"]
[BlackElo "2580"]
[PlyCount "126"]
[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 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e3 d6 6. Nge2 e5 7. 0-0 h5 8. h3 Re8 9. d3 Nc6 10. Rb1 a5 11. a3 Be6 12. Nd5 Nh7 13. Kh2 f5 14. Nec3 Nb8 15. Ne2 c6 16. Ndc3 h4 17. e4 hxg3+ 18. fxg3 Nd7 19. exf5 gxf5 20. d4 exd4 21. Nxd4 Bxc4 22. Rxf5 Ne5 23. Be4 d5 24. Bc2 c5 25. Nf3 Nxf3+ 26. Rxf3 d4 27. Bb3 Bxb3 28. Qxb3+ Kh8 29. Nd1 Re2+ 30. Rf2 Qe7 31. Qd3 Re8 32. b3 Qe4 33. Qxe4 R8xe4 34. Kg2 d3 35. Bb2 Rc2 36. Bxg7+ Kxg7 37. Nb2 Rxf2+ 38. Kxf2 Re2+ 39. Kf1 Rh2 40. Kg1 Rd2 41. Nc4 Rc2 42. Rd1 a4 43. Rxd3 axb3 44. Rxb3 Rxc4 45. Rxb7+ Kg6 46. Rc7 Ng5 47. h4 Ne6 48. Rc6 Kf6 49. Kf2 Rc2+ 50. Ke3 Rc3+ 51. Kf2 Rxa3 52. g4 Ke5 53. h5 Rh3 54. Kg2 Nf4+ 55. Kf2 Kd5 56. Rf6 Ke4 57. Rc6 Rf3+ 58. Ke1 Rg3 59. Kd2 Kd5 60. Rf6 Rxg4 61. Ke3 Ne6 62. Rf5+ Kd6 63. Kd3 Rf4 0-1

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.31"]
[Round "9"]
[White "Pyatin, Alexander"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2109"]
[BlackElo "2212"]
[PlyCount "107"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. c4 Nc6 6. Be3 Nh6 7. Nc3 0-0 8. Be2 f5 9. exf5 Bxd4 10. Bxd4 Nxf5 11. Be3 Nxe3 12. fxe3 d6 13. Qd5+ Kg7 14. h4 Qb6 15. Qd2 Be6 16. h5 Ne5 17. hxg6 hxg6 18. b3 Rh8 19. 0-0-0 Rxh1 20. Rxh1 Rh8 21. Rxh8 Kxh8 22. Qd4 Qa5 23. Kb2 Kg7 24. Bf3 b6 25. Bd5 Bg4 26. a3 Qc5 27. Nb5 a6 28. Nc3 Bf5 29. Na4 Qxd4+ 30. exd4 Nd3+ 31. Kc3 b5 32. cxb5 axb5 33. Nb6 Nf4 34. Kb4 Bd3 35. Bc6 Bf1 36. g3 Nd3+ 37. Kxb5 Nc1+ 38. Kb4 Na2+ 39. Ka5 Nc1 40. Bd5 Ne2 41. Nc8 Kf6 42. b4 Nxd4 43. a4 e6 44. Bb7 Ke5 45. Kb6 Nc2 46. b5 Na3 47. Bc6 d5 48. Kc5 Nc4 49. b6 Na5 50. b7 Nxb7+ 51. Bxb7 d4 52. Nd6 d3 53. Nc4+ Kf6 54. Nd2 1-0

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.30"]
[Round "8"]
[White "Vunder, Yakov"]
[Black "Shchukin, Dmitry"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2212"]
[BlackElo "2341"]
[PlyCount "134"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 0-0 5. e3 d6 6. Nge2 e5 7. 0-0 Nc6 8. d3 Bg4 9. h3 Be6 10. Nd5 Qd7 11. Kh2 Rab8 12. Nec3 Ne7 13. Qa4 Nfxd5 14. Qxd7 Bxd7 15. cxd5 c5 16. dxc6 bxc6 17. Rb1 c5 18. Bd2 Rb6 19. b3 Rfb8 20. Rbc1 Bf5 21. Ne4 Ra6 22. Rc2 Bd7 23. Rd1 f5 24. Nc3 Kf7 25. Nd5 Nxd5 26. Bxd5+ Be6 27. Bc4 Rab6 28. Ba5 d5 29. Bxb6 Rxb6 30. Bxd5 Bxd5 31. Rxc5 Bf3 32. Rc7+ Kf6 33. Rd2 Bf8 34. d4 Bd6 35. dxe5+ Kxe5 36. Rc4 g5 37. g4 Ke6+ 38. Kg1 fxg4 39. hxg4 Rb7 40. e4 Rb6 41. Kf1 Bxg4 42. Kg2 Bf4 43. Rdc2 Bd1 44. Rc6+ Kd7 45. Rxb6 axb6 46. Rc4 Be2 47. Rd4+ Ke7 48. f3 h5 49. Kf2 Ba6 50. Ra4 Bc8 51. Rb4 Bd6 52. Rc4 Bd7 53. a4 Be6 54. Rc3 h4 55. Kg2 h3+ 56. Kh1 g4 57. fxg4 Bxg4 58. b4 Bxb4 59. Rc7+ Kd6 60. Rg7 Bf3+ 61. Kh2 Bg2 62. Rg6+ Kc5 63. Rg5+ Kc4 64. e5 Kd5 65. e6+ Kxe6 66. Rg6+ Kd5 67. Rxb6 Bd6+ 0-1

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.29"]
[Round "7"]
[White "Pen, Pyotr"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "2143"]
[BlackElo "2212"]
[PlyCount "101"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. Nc3 Nf6 7. f3 0-0 8. Qd2 d5 9. 0-0-0 dxe4 10. Nxc6 Qxd2+ 11. Rxd2 bxc6 12. Nxe4 Nd5 13. Bg5 f6 14. c4 fxg5 15. cxd5 g4 16. Kb1 cxd5 17. Rxd5 gxf3 18. gxf3 Rb8 19. Rd2 Rxf3 20. Bc4+ Kh8 21. Ng5 Bf5+ 22. Ka1 Rf4 23. Nf7+ Kg8 24. Nd6+ Kf8 25. Nxf5 gxf5 26. Bb3 a5 27. Rhd1 Bf6 28. Rg1 Rg4 29. Rxg4 fxg4 30. Rg2 Rb4 31. Kb1 h5 32. h3 a4 33. Be6 Re4 34. Bd5 Re1+ 35. Kc2 e6 36. Bc6 a3 37. bxa3 Re3 38. Rf2 Ke7 39. Bg2 Rxa3 40. Kd1 gxh3 41. Bh1 Rg3 42. Ke2 Bd4 43. Rf4 e5 44. Rh4 Ra3 45. Bd5 Re3+ 46. Kf1 Kd6 47. Bb7 Kc7 48. Bd5 Kd6 49. Bb7 Rc3 50. Be4 Re3 51. Bb7 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.28"]
[Round "6"]
[White "Vunder, Yakov"]
[Black "Solovjov, Sergey"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2212"]
[BlackElo "2396"]
[PlyCount "48"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Be2 dxc4 7. a4 Bd6 8. Bxc4 0-0 9. 0-0 e5 10. e4 h6 11. h3 Qe7 12. Be3 exd4 13. Bxd4 Ne5 14. Nxe5 Bxe5 15. f4 Bxd4+ 16. Qxd4 Rd8 17. Qe3 Nd5 18. Bxd5 cxd5 19. Rad1 dxe4 20. Rxd8+ Qxd8 21. Rd1 Qe8 22. Qxe4 Bd7 23. Qxb7 Bc6 24. Qc7 Bxa4 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.27"]
[Round "5"]
[White "Krukovsky, Alexander"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D61"]
[WhiteElo "2101"]
[BlackElo "2212"]
[PlyCount "56"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. Qc2 c6 8. Rd1 b6 9. cxd5 cxd5 10. Bd3 Bb7 11. 0-0 Rc8 12. Ne5 Ne4 13. Bxe7 Qxe7 14. Nxd7 Qxd7 15. f3 Nxc3 16. Bxh7+ Kh8 17. bxc3 f5 18. Bg6 Rf6 19. Bh5 Rh6 20. Bg4 fxg4 21. fxg4 e5 22. g5 Rhc6 23. g6 Qg4 24. Rf7 Ba6 25. Rd2 Qxg6 26. Qxg6 Rxg6 27. dxe5 Rxc3 28. Rxa7 Rc1+ 0-1

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.26"]
[Round "4"]
[White "Vunder, Yakov"]
[Black "Opanasenko, Mikhail"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2212"]
[BlackElo "2047"]
[PlyCount "119"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. 0-0 c5 6. b3 Be7 7. Bb2 0-0 8. Nbd2 d6 9. c4 Nbd7 10. Rc1 Qc7 11. Qc2 Rfe8 12. Ng5 Nf8 13. dxc5 dxc5 14. Bxf6 Bxf6 15. Nxh7 Nxh7 16. Bxh7+ Kh8 17. Be4 Rad8 18. Bxb7 Qxb7 19. Ne4 Be7 20. Rcd1 Kg8 21. Ng3 Bd6 22. Qe4 Qc7 23. f4 g6 24. Qf3 Bf8 25. e4 Rxd1 26. Rxd1 Rd8 27. e5 Bh6 28. Rf1 Bf8 29. Ne4 Be7 30. Rd1 Kg7 31. Rd3 a6 32. Qd1 Rxd3 33. Qxd3 Qc8 34. g3 Qc6 35. h4 Qc8 36. Kh2 Qh8 37. Kg2 Qa8 38. Kh3 Qc8 39. g4 Qh8 40. g5 Qa8 41. Ng3 Qc6 42. h5 gxh5 43. Nxh5+ Kh8 44. Ng3 Qc8 45. Qd1 Kg8 46. Kg4 b5 47. Qd3 b4 48. g6 Qe8 49. f5 Bf8 50. Nh5 Be7 51. f6 fxg6 52. Nf4 Bf8 53. Qxg6+ Qxg6+ 54. Nxg6 Bh6 55. Ne7+ Kf7 56. Nc6 Ke8 57. Kh5 Bf4 58. Kg6 Kf8 59. f7 a5 60. Nd8 1-0

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.25"]
[Round "3"]
[White "Korchagina, Victoria"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "B18"]
[WhiteElo "2101"]
[BlackElo "2212"]
[PlyCount "29"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 h6 5. Nf3 Bf5 6. Ng3 Bg6 7. Bd3 Bxd3 8. Qxd3 Nf6 9. 0-0 e6 10. Ne4 Nxe4 11. Qxe4 Nd7 12. Ne5 Nxe5 13. dxe5 Qd5 14. Qe2 0-0-0 15. c3 1/2-1/2

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.24"]
[Round "2"]
[White "Vunder, Yakov"]
[Black "Koshkarov, Ivan"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2212"]
[BlackElo "2023"]
[PlyCount "123"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 Bf5 5. Bd3 Bg6 6. 0-0 Nbd7 7. cxd5 cxd5 8. Nc3 e6 9. Ne5 Nxe5 10. dxe5 Nd7 11. f4 Bxd3 12. Qxd3 f5 13. exf6 Nxf6 14. f5 e5 15. Rd1 d4 16. Qb5+ Qd7 17. Qxe5+ Be7 18. Rxd4 Qc6 19. Ne4 Nxe4 20. Qxe4 Qxe4 21. Rxe4 Kf7 22. Bd2 Bf6 23. Rc1 Rac8 24. Rec4 Rxc4 25. Rxc4 Be5 26. Bc3 Bxc3 27. Rxc3 Re8 28. Rc7+ Kf6 29. Kf2 Re5 30. Rxb7 Rxf5+ 31. Ke2 Ra5 32. a3 h5 33. e4 g6 34. Ke3 Ke5 35. Rd7 Ke6 36. Rd5 Ra6 37. Kf4 Rc6 38. b4 Rc2 39. Ra5 Rxg2 40. Ra6+ Kf7 41. Rxa7+ Ke6 42. Ra6+ Kf7 43. h3 Rh2 44. Kg5 Rxh3 45. Ra7+ Ke6 46. Kxg6 Re3 47. Kxh5 Rxe4 48. Kg5 Kd6 49. Kf5 Re5+ 50. Kf4 Re1 51. b5 Kc5 52. a4 Kb6 53. Ra6+ Kb7 54. a5 Re2 55. Rg6 Re7 56. Kf5 Re2 57. a6+ Ka7 58. Rg7+ Ka8 59. b6 Re8 60. Rf7 Kb8 61. Kf6 Ka8 62. Kg7 1-0

[Event "St Petersburg Spring op"]
[Site "St Petersburg"]
[Date "2011.03.23"]
[Round "1"]
[White "Osmanov, Magomed"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "1847"]
[BlackElo "2212"]
[PlyCount "52"]
[EventDate "2011.03.23"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 141 Extra"]
[Source "ChessBase"]
[SourceDate "2011.05.03"]
[SourceVersion "1"]
[SourceVersionDate "2011.05.03"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c4 Nf6 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Bd3 dxc4 8. Bxc4 a6 9. 0-0 c5 10. dxc5 Nxc5 11. Qc2 b5 12. Rfd1 Qb6 13. Be2 Bb7 14. Bxf6 Bxf6 15. b4 Rac8 16. Nd4 Ne4 17. Rd3 Nxc3 18. Rxc3 Bxd4 19. exd4 Qxd4 20. Rc1 Rxc3 21. Qxc3 Qxc3 22. Rxc3 Rc8 23. Rd3 Rc1+ 24. Bd1 Kf8 25. f3 Bd5 26. a3 Bc4 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.24"]
[Round "9"]
[White "Pen, Pyotr"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2047"]
[BlackElo "2209"]
[PlyCount "82"]
[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. Nd2 e6 5. Nb3 Nd7 6. Nf3 Ne7 7. Be2 Ng6 8. 0-0 Be7 9. Ne1 Ngf8 10. g4 Be4 11. f3 Bg6 12. f4 Be4 13. Bd3 h5 14. Bxe4 dxe4 15. gxh5 f5 16. c4 Nb6 17. Qe2 a6 18. h6 Rxh6 19. a4 a5 20. Bd2 Nc8 21. Nc2 Rh3 22. Ne3 Qb6 23. Kg2 Rh4 24. Qd1 g5 25. c5 Qd8 26. Nc4 e3 27. Nxe3 gxf4 28. Nc2 Ng6 29. h3 Bf8 30. Be1 Rh7 31. Na3 Nce7 32. Kh2 Nd5 33. Nc4 Ne3 34. Nxe3 fxe3 35. Qf3 Qg5 36. Nxa5 0-0-0 37. Nxc6 Rd5 38. Na7+ Kb8 39. Nb5 f4 40. Qe4 Bxc5 41. dxc5 Rd2+ 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.23"]
[Round "8"]
[White "Vunder, Yakov"]
[Black "Golovankov, Vladimir"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2209"]
[BlackElo "2293"]
[PlyCount "138"]
[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. c4 e5 2. g3 f5 3. Bg2 Nf6 4. Nc3 d6 5. e3 g6 6. Nge2 Bg7 7. d3 a5 8. 0-0 0-0 9. Rb1 Qe8 10. a3 g5 11. f4 h6 12. Nd5 Nxd5 13. cxd5 c5 14. dxc6 Nxc6 15. e4 Qe7 16. Nc3 exf4 17. gxf4 Bd4+ 18. Kh1 g4 19. Qe1 Qg7 20. Nb5 Qf6 21. Nxd4 Qxd4 22. Be3 Qf6 23. Bd2 Be6 24. Bc3 Qf7 25. b4 axb4 26. axb4 Ra2 27. Rb2 Rfa8 28. b5 Ne7 29. Qh4 Kh7 30. Rxa2 Rxa2 31. Qf6 Qxf6 32. Bxf6 Ng6 33. d4 Bc4 34. Rc1 Nxf4 35. exf5 d5 36. Bf1 Rf2 37. Bxc4 dxc4 38. Be5 Nd5 39. Kg1 Rxf5 40. Rxc4 Ne3 41. Rc1 h5 42. Re1 Rf3 43. Bg3 Kg6 44. Bf2 Nd5 45. Re6+ Rf6 46. Re5 Rf5 47. Re6+ Kf7 48. Rh6 Nf6 49. Bh4 Kg7 50. Rxf6 Rxf6 51. Bxf6+ Kxf6 52. Kf2 h4 53. Ke3 Kf5 54. b6 Ke6 55. Kf4 g3 56. hxg3 hxg3 57. Kxg3 Kd5 58. Kf3 Kxd4 59. Ke2 Kc5 60. Kd3 Kxb6 61. Kc4 Ka5 62. Kb3 Kb5 63. Kc3 Ka4 64. Kb2 Kb4 65. Ka2 Kc3 66. Kb1 b5 67. Ka1 Kb3 68. Kb1 b4 69. Ka1 Kc2 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.22"]
[Round "7"]
[White "Vunder, Yakov"]
[Black "Kozenkov, Valery"]
[Result "1-0"]
[ECO "D42"]
[WhiteElo "2209"]
[BlackElo "2132"]
[PlyCount "97"]
[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. c4 c6 2. e4 e6 3. Nc3 d5 4. exd5 cxd5 5. d4 Nf6 6. Nf3 Be7 7. cxd5 Nxd5 8. Bd3 Nc6 9. 0-0 Bf6 10. Re1 0-0 11. Be4 Nce7 12. Qd3 h6 13. Ne5 Nxc3 14. Qxc3 Nf5 15. Be3 Rb8 16. Rad1 Nxe3 17. Qxe3 Bd7 18. Bb1 Qe7 19. d5 Bxe5 20. Qxe5 Rfe8 21. Qe4 g6 22. Qe3 Qg5 23. dxe6 Bxe6 24. Qxg5 hxg5 25. Re5 Bf5 26. Rxe8+ Rxe8 27. Bxf5 gxf5 28. Kf1 Re5 29. Rd7 Rb5 30. b3 Kg7 31. Ke2 Kf6 32. f4 gxf4 33. Kf3 Rb4 34. Rc7 a5 35. Rc4 Kg5 36. Rxb4 axb4 37. h3 f6 38. h4+ Kh5 39. Kxf4 Kxh4 40. Kxf5 Kg3 41. Kxf6 Kxg2 42. Ke5 Kf3 43. Kd4 Ke2 44. Kc4 Kd2 45. Kxb4 Kc2 46. a4 Kb2 47. a5 Ka2 48. Ka4 Kb2 49. b4 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.21"]
[Round "6"]
[White "Kopasov, Evgeny Aleksandrovi"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2086"]
[BlackElo "2209"]
[PlyCount "63"]
[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 e6 3. Bf4 Bd6 4. Bg3 Nf6 5. Nbd2 c5 6. e3 0-0 7. c3 Nc6 8. Bd3 Qe7 9. Ne5 Bc7 10. f4 Ne8 11. 0-0 f5 12. Ndf3 Nf6 13. Bh4 Qe8 14. Bxf6 gxf6 15. Nxc6 Qxc6 16. Nh4 Kh8 17. Qh5 Rg8 18. Qh6 Bd8 19. Rf3 c4 20. Rh3 Qd7 21. Be2 Qg7 22. Qh5 Bd7 23. Rg3 Qe7 24. Rxg8+ Kxg8 25. Kf2 Qf7 26. Qf3 Be7 27. Rg1 Kh8 28. g4 fxg4 29. Qxg4 Rg8 30. Qxg8+ Qxg8 31. Rxg8+ Kxg8 32. Nf3 1/2-1/2

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.20"]
[Round "5"]
[White "Vunder, Yakov"]
[Black "Serov, Maksim"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2209"]
[BlackElo "2375"]
[PlyCount "100"]
[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. c4 c5 2. g3 Nc6 3. Bg2 g6 4. e3 Bg7 5. Ne2 Nf6 6. Nbc3 d6 7. 0-0 h5 8. h3 Be6 9. b3 Qd7 10. Nf4 Bf5 11. Kh2 g5 12. Nfd5 Bd3 13. Nxf6+ Bxf6 14. Rh1 g4 15. h4 Qf5 16. Kg1 Bxc3 17. dxc3 Be4 18. Bxe4 Qxe4 19. Qd5 f5 20. Qxe4 fxe4 21. Kg2 Rf8 22. a4 a5 23. Ba3 Ne5 24. Rad1 b6 25. Rhf1 Kd7 26. Rd2 Rf5 27. Bb2 Raf8 28. Ba1 Kc6 29. Re2 e6 30. Rc2 Nd3 31. Re2 Rd8 32. Kg1 d5 33. cxd5+ exd5 34. c4 dxc4 35. bxc4 Nb4 36. Bc3 Rf7 37. Rc1 Rfd7 38. Kg2 Rd1 39. Rxd1 Rxd1 40. Rd2 Rxd2 41. Bxd2 Nc2 42. Bc1 Ne1+ 43. Kf1 Nd3 44. Bd2 Nb2 45. Bc3 Nxc4 46. Ke2 Kd5 47. Bf6 Ne5 48. Bd8 Nd7 49. Kd2 Kc4 50. Bc7 Kb3 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.19"]
[Round "4"]
[White "Gantsevich, Aleksei"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "B35"]
[WhiteElo "2071"]
[BlackElo "2209"]
[PlyCount "107"]
[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 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. Nc3 Nf6 7. f3 0-0 8. Bc4 Qb6 9. Qd2 Nxe4 10. Nxc6 Qxc6 11. Bxf7+ Rxf7 12. fxe4 Bxc3 13. Qxc3 Qxc3+ 14. bxc3 d6 15. Rb1 b6 16. Rf1 Bb7 17. Rxf7 Kxf7 18. Rb4 Rc8 19. Kd2 Ke6 20. Ra4 Ra8 21. g3 Bc6 22. Rb4 b5 23. Kd3 Rf8 24. Rb1 a6 25. Re1 Rf3 26. Kd4 Kd7 27. a3 e5+ 28. Kd3 Ke6 29. Rb1 g5 30. Re1 d5 31. exd5+ Bxd5 32. Kd2 Kf5 33. Bc5 e4 34. Re3 Kg4 35. Rxf3 exf3 36. Ke3 Kh3 37. Kf2 Kxh2 38. Be7 h6 39. Bf8 Kh3 40. Bxh6 Kg4 41. Bg7 Be4 42. c4 bxc4 43. c3 Bc2 44. Be5 Kf5 45. Bd6 Ke4 46. Bb4 g4 47. Bc5 Kd3 48. Bb4 Ba4 49. Ba5 Bd7 50. Bb4 Kc2 51. Ke3 Kb3 52. Kd2 Bf5 53. Bc5 Bd3 54. Bb4 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.18"]
[Round "3"]
[White "Vunder, Yakov"]
[Black "Bykov, Evgeny Mikhailovich"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2209"]
[BlackElo "2059"]
[PlyCount "77"]
[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. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 0-0 6. Nf3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. 0-0-0 Na6 11. Nd2 c6 12. f3 Be6 13. Be3 Bf8 14. a3 Nc5 15. b4 Ncd7 16. Nb3 Rec8 17. Kb2 Ne8 18. Rd2 Be7 19. Rhd1 Rc7 20. c5 Nf8 21. Na5 Rb8 22. Na4 Rd7 23. Rxd7 Nxd7 24. Bc4 Nf8 25. Bxe6 fxe6 26. Nc4 Rd8 27. Rxd8 Bxd8 28. Kb3 Nd7 29. Bf2 Kf7 30. Nab2 b6 31. Nd3 Kf6 32. cxb6 axb6 33. a4 b5 34. Ncxe5 bxa4+ 35. Kxa4 Nxe5 36. Bd4 Bc7 37. f4 Ke7 38. Nxe5 Kd6 39. Bc5# 1-0

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.17"]
[Round "2"]
[White "Katyshkina, Anastasia"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1887"]
[BlackElo "2209"]
[PlyCount "52"]
[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 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. c4 Nf6 7. Nc3 d6 8. h3 0-0 9. Be2 Bd7 10. f4 Nxd4 11. Bxd4 e5 12. Be3 Bc6 13. Bf3 exf4 14. Bxf4 Qb6 15. Qc2 Rfe8 16. Kf1 Qd4 17. Ne2 Qc5 18. Ng3 b5 19. Rd1 Rad8 20. b3 bxc4 21. bxc4 Bb5 22. Be2 Qc6 23. Qd3 Ba4 24. Rd2 Nxe4 25. Nxe4 Rxe4 26. Bxd6 Rd4 0-1

[Event "St Petersburg Autumn op"]
[Site "St Petersburg"]
[Date "2010.10.16"]
[Round "1"]
[White "Vunder, Yakov"]
[Black "Andreeva, Yuliya"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2209"]
[BlackElo "1871"]
[PlyCount "51"]
[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. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Bd6 5. 0-0 0-0 6. b3 b6 7. Bb2 Bb7 8. Nc3 c5 9. e3 dxc4 10. bxc4 Nc6 11. d3 Qe7 12. Qe2 Rac8 13. Rad1 Rfd8 14. Rfe1 Bb8 15. Nd2 Ne5 16. Bxb7 Qxb7 17. Nde4 Nxe4 18. Nxe4 h6 19. f4 Nc6 20. Qg4 f5 21. Nf6+ Kf8 22. Nh7+ Kg8 23. Nf6+ Kf8 24. Qg6 Qf7 25. Nh7+ Kg8 26. Nf6+ 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.29"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Nikolaev, Yury"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2233"]
[BlackElo "2134"]
[PlyCount "51"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. 0-0 Be7 7. d4 e4 8. Ne5 e3 9. Nxc6 exf2+ 10. Rxf2 bxc6 11. Nc3 0-0 12. e4 Nf6 13. Bf4 Rb8 14. Rd2 c5 15. e5 Ng4 16. h3 g5 17. hxg4 gxf4 18. Ne4 f5 19. exf6 Bxf6 20. dxc5 Qe7 21. gxf4 Rxb2 22. Rxb2 Bxb2 23. Qb3+ Be6 24. Qxb2 Rxf4 25. Qe5 Rf7 26. Ng5 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.28"]
[Round "8"]
[White "Palchun, Grigory"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2106"]
[BlackElo "2233"]
[PlyCount "64"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. Bf4 c5 4. e3 Nc6 5. c3 Bd6 6. Bg3 Nf6 7. Nbd2 0-0 8. Bd3 Qe7 9. Ne5 Nd7 10. f4 f6 11. Bh4 Qe8 12. Qc2 Qh5 13. Nef3 cxd4 14. cxd4 Nb4 15. Qb3 Nxd3+ 16. Qxd3 Nb6 17. 0-0-0 Bd7 18. Kb1 e5 19. dxe5 fxe5 20. fxe5 Bf5 21. e4 dxe4 22. Nxe4 Bxe5 23. Ka1 Rae8 24. Qb3+ Be6 25. Qb5 Bc4 26. Qb4 Bxb2+ 27. Qxb2 Rxe4 28. Bf2 Re2 29. Rd2 Rxd2 30. Qxd2 Bd5 31. Bxb6 axb6 32. Nd4 Ra8 0-1

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.27"]
[Round "7"]
[White "Vunder, Yakov"]
[Black "Svidinsky, Dmitry"]
[Result "1/2-1/2"]
[ECO "E69"]
[WhiteElo "2233"]
[BlackElo "2086"]
[PlyCount "56"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 e5 7. d4 Nbd7 8. h3 c6 9. e4 Qe7 10. Re1 Re8 11. Be3 exd4 12. Nxd4 Nc5 13. b4 Ne6 14. b5 Nxd4 15. Bxd4 Be6 16. bxc6 bxc6 17. e5 dxe5 18. Bxe5 Qc5 19. Bxf6 Bxf6 20. Ne4 Qe7 21. Nxf6+ Qxf6 22. Bxc6 Red8 23. Qf3 Qxf3 24. Bxf3 Rac8 25. Bg4 Bxg4 26. hxg4 Rxc4 27. Re7 Ra4 28. Rb1 Rf8 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.25"]
[Round "6"]
[White "Vunder, Yakov"]
[Black "Martynov, Pavel1"]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2233"]
[BlackElo "1992"]
[PlyCount "99"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Qc2 g6 5. Bf4 Na6 6. e3 Bf5 7. Qb3 Qb6 8. c5 Qxb3 9. axb3 Nb4 10. Na3 Nd3+ 11. Bxd3 Bxd3 12. Ne5 Bf5 13. f3 Bg7 14. g4 Be6 15. Kf2 Nd7 16. b4 Nxe5 17. Bxe5 f6 18. Bg3 Bd7 19. Rhe1 0-0 20. Kg2 e5 21. h3 h5 22. gxh5 gxh5 23. Nc2 Bf5 24. e4 Bg6 25. Re2 dxe4 26. fxe4 a6 27. dxe5 fxe5 28. Ne1 h4 29. Bxh4 Rf4 30. Bg5 Rxe4 31. Rxe4 Bxe4+ 32. Kf2 Rf8+ 33. Ke3 Bd5 34. h4 Kh7 35. Nc2 Rf3+ 36. Ke2 Rb3 37. Bc1 Be4 38. Ne3 Rxb4 39. Ra3 Bg6 40. Rc3 Rxh4 41. Rb3 Rh2+ 42. Kf3 e4+ 43. Kg3 Rh5 44. Rxb7 Rxc5 45. Bd2 Rb5 46. Rc7 Kg8 47. Rxc6 Rxb2 48. Rxg6 Rxd2 49. Nf5 Rd7 50. Rxa6 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.24"]
[Round "5"]
[White "Sinajskij, Anatolij"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2100"]
[BlackElo "2233"]
[PlyCount "64"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 d5 2. g3 e6 3. c4 Nf6 4. Nf3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 b5 11. Qc2 Be4 12. Qc1 Nc6 13. axb5 Bxf3 14. Bxf3 Nxd4 15. Rxa6 Nxf3+ 16. exf3 Qd5 17. Kg2 Qxb5 18. Rc6 Ra1 19. Bxf6 Bxf6 20. Rxc7 Bxb2 21. Qc2 Bd4 22. Nd2 Rxf1 23. Nxf1 g6 24. Rc8 Rxc8 25. Qxc8+ Kg7 26. Qc2 h5 27. h4 Qb6 28. Qe2 Qc5 29. f4 Qc6+ 30. Qf3 Qc2 31. Nh2 Qb2 32. Nf1 Qc2 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.22"]
[Round "4"]
[White "Vunder, Yakov"]
[Black "Anosov, Sergey"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2233"]
[BlackElo "2071"]
[PlyCount "44"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d5 3. cxd5 Qxd5 4. Nc3 Qa5 5. g3 c5 6. Bg2 Nc6 7. 0-0 Bg4 8. d3 e6 9. Bd2 Qd8 10. Qa4 Qd7 11. Bg5 Bxf3 12. Bxf3 Nd4 13. Qxd7+ Kxd7 14. Bxb7 Rb8 15. Bg2 Nd5 16. Bxd5 exd5 17. Rab1 Ke6 18. Bf4 Bd6 19. Bxd6 Kxd6 20. e3 Nf3+ 21. Kg2 Nd2 22. e4 Nxf1 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.21"]
[Round "3"]
[White "Sivokho, Sergey V"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2472"]
[BlackElo "2233"]
[PlyCount "43"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. g3 Nc6 7. Bg2 d6 8. 0-0 Bd7 9. Nxc6 Bxc6 10. a4 b6 11. Re1 Be7 12. Qg4 h5 13. Qe2 h4 14. Qc4 Qb7 15. Bf4 Rc8 16. Bf1 hxg3 17. Bxg3 Bb5 18. axb5 Rxc4 19. bxa6 Qa8 20. Bxc4 Nf6 21. Bb5+ Kf8 22. a7 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.20"]
[Round "2"]
[White "Vunder, Yakov"]
[Black "Eltsov, Valery"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "2233"]
[BlackElo "2070"]
[PlyCount "137"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 e5 4. Nc3 d6 5. d4 e4 6. e3 Be7 7. Nge2 0-0 8. 0-0 c6 9. f3 exf3 10. Bxf3 Na6 11. Rb1 Nc7 12. b4 Be6 13. b5 Bxc4 14. bxc6 bxc6 15. Bxc6 Rb8 16. Rxb8 Qxb8 17. Rxf5 Qb6 18. Bg2 Qa6 19. Rf2 Bxa2 20. Nxa2 Qxa2 21. Nf4 Qa5 22. Qb3+ Kh8 23. Qa2 Qxa2 24. Rxa2 a6 25. Rc2 Nb5 26. Bd2 Rb8 27. Rc6 Ra8 28. Rb6 Rc8 29. Rxa6 g6 30. Bc6 Na3 31. d5 Nc4 32. Bc3 Kg8 33. Ra7 Kf7 34. Ne6 h6 35. Bd4 Ng4 36. Ng5+ hxg5 37. Bd7 Rb8 38. Bxg4 Kf8 39. Rd7 Nb6 40. Bxb6 Rxb6 41. Be6 Rb8 42. Kg2 Re8 43. Kf3 Kg7 44. Ke4 Kf6 45. h3 Ra8 46. Kf3 Ra1 47. g4 Rf1+ 48. Kg2 Re1 49. h4 gxh4 50. g5+ Kxg5 51. Kf2 Rh1 52. Rxe7 Rh2+ 53. Kf3 Kf6 54. Rh7 Rh1 55. Ke4 Ra1 56. Rf7+ Kg5 57. Rd7 Ra4+ 58. Kf3 Ra6 59. Rc7 Kf6 60. Rf7+ Kg5 61. Rf4 Ra1 62. Rg4+ Kh5 63. Rc4 Rf1+ 64. Kg2 Rf8 65. Rc7 g5 66. e4 g4 67. Rh7+ Kg5 68. Rg7+ Kf6 69. Rxg4 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2009.05.19"]
[Round "1"]
[White "Glazov, Anatoly"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1978"]
[BlackElo "2233"]
[PlyCount "68"]
[EventDate "2009.05.19"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. c3 Nf6 5. d3 0-0 6. 0-0 d6 7. h3 Na5 8. Bb5 a6 9. Ba4 b5 10. Bc2 c5 11. d4 Qc7 12. Bg5 h6 13. Bh4 cxd4 14. cxd4 Bb7 15. Nbd2 Nc6 16. Rc1 exd4 17. Nxd4 Nxd4 18. e5 Qd8 19. exf6 Bxf6 20. Ne4 Bxe4 21. Bxe4 d5 22. Bxf6 Qxf6 23. Bxd5 Rad8 24. Be4 Qe6 25. Re1 Qxa2 26. Ra1 Qxb2 27. Rxa6 Qc3 28. Re3 Qc5 29. Rd3 b4 30. Ra4 Rfe8 31. Ra8 Rxa8 32. Bxa8 Ne2+ 33. Kf1 Nc3 34. Qf3 Qa5 0-1

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.23"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Palchun, Grigory"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2235"]
[BlackElo "2107"]
[PlyCount "47"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 4. Nf3 h6 5. 0-0 Bc5 6. Nxe5 Nxe5 7. d4 Nxc4 8. dxc5 0-0 9. b3 Ne5 10. Bb2 Nc6 11. Nc3 Qe7 12. Rc1 b6 13. e4 Ba6 14. Re1 Rae8 15. e5 Nh7 16. Nd5 Qd8 17. cxb6 axb6 18. Ba3 Rxe5 19. Rxe5 Nxe5 20. Bxf8 Nxf8 21. Nxc7 Bc8 22. Qd6 Nfg6 23. Nd5 Nc6 24. Rxc6 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.22"]
[Round "8"]
[White "Utkin, Aleksey"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2420"]
[BlackElo "2235"]
[PlyCount "79"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. 0-0 Bg7 5. d3 0-0 6. Nbd2 c5 7. e4 Nc6 8. Re1 e6 9. Qe2 h6 10. Nf1 Re8 11. h4 e5 12. c3 b6 13. Qc2 Bb7 14. exd5 Nxd5 15. N1d2 Qd7 16. a4 Rad8 17. Nc4 Ba6 18. Qb3 Nc7 19. Nfd2 Kh7 20. h5 g5 21. a5 Nxa5 22. Nxa5 bxa5 23. Rxa5 Bxd3 24. Rxa7 Re7 25. Ne4 c4 26. Qb6 Kg8 27. Be3 Qc8 28. Nd6 Qe6 29. Nb5 Qxb6 30. Bxb6 Rb8 31. Nxc7 Rxb6 32. Ra8+ Bf8 33. Nd5 Rbe6 34. Nxe7+ Rxe7 35. Bd5 Rd7 36. Rxe5 Kg7 37. Bf3 Be7 38. Rb5 f5 39. Rb7 Rxb7 40. Bxb7 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.21"]
[Round "7"]
[White "Pochinkov, Andrey"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "2136"]
[BlackElo "2235"]
[PlyCount "80"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. e3 c5 4. c3 Nf6 5. Bd3 Bd6 6. Nbd2 Nbd7 7. 0-0 0-0 8. Qe2 e5 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. h3 Bc7 12. Rd1 Qe7 13. c4 Be6 14. cxd5 Bxd5 15. e4 Bc6 16. Re1 Rfe8 17. a4 Qd6 18. g3 Qd7 19. Kh2 Bxa4 20. Nc4 Rad8 21. Bb1 b5 22. Ne3 Nxe4 23. Qf3 Nd2 24. Bxd2 Qxd2 25. Re2 Qd7 26. Qh5 g6 27. Qxc5 Bb6 28. Qg5 Bd4 29. Ba2 b4 30. Bc4 Bc6 31. Ng4 Rxe2 32. Bxe2 Qd5 33. Qxd5 Bxd5 34. Rd1 Bb3 35. Rd2 Bb6 36. Nf6+ Kg7 37. Rxd8 Bxd8 38. Nd7 Bf6 39. Nxf6 Kxf6 40. Kg2 a5 0-1

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.20"]
[Round "6"]
[White "Vunder, Yakov"]
[Black "Maevsky, Nikolay"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2235"]
[BlackElo "2143"]
[PlyCount "69"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 d6 6. Rb1 a5 7. e3 Nge7 8. Nge2 h5 9. h3 h4 10. g4 f5 11. gxf5 gxf5 12. Rg1 Bf6 13. a3 Be6 14. Nd5 Bg7 15. Nec3 Kf8 16. Qb3 Rb8 17. Nb5 Rc8 18. Bd2 b6 19. f4 Rg8 20. Bf3 Bf7 21. Kf2 Qd7 22. Bc3 Nxd5 23. cxd5 Ne7 24. Qc4 c6 25. dxc6 Nxc6 26. Bxc6 Rxc6 27. Qa4 Rc5 28. fxe5 dxe5 29. Qxh4 Rxb5 30. b4 a4 31. Rbc1 Qe7 32. Qh7 Qe6 33. Bd2 Rd5 34. b5 Rxb5 35. Bb4+ 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.19"]
[Round "5"]
[White "Vunder, Yakov"]
[Black "Ganichev, Alexander"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "2235"]
[BlackElo "2100"]
[PlyCount "77"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. c4 e5 2. g3 d6 3. Bg2 f5 4. d4 e4 5. Nc3 Nf6 6. f3 exf3 7. Nxf3 Be7 8. 0-0 0-0 9. d5 c5 10. dxc6 Nxc6 11. Nd5 Kh8 12. Nxe7 Nxe7 13. Bf4 Ne4 14. Nd4 d5 15. Nb5 Qb6+ 16. Qd4 Qxd4+ 17. Nxd4 Bd7 18. Bxe4 dxe4 19. Bd6 Rae8 20. g4 g6 21. gxf5 gxf5 22. Rf2 Kg7 23. Raf1 Kg6 24. Rg2+ Kf6 25. Bb4 b6 26. a4 a5 27. Bc3 Kf7 28. Nb5 Bxb5 29. axb5 Rg8 30. Bd4 Rxg2+ 31. Kxg2 Rd8 32. e3 Rd6 33. Kf2 Ng6 34. Rc1 Nh4 35. c5 bxc5 36. Rxc5 Nf3 37. Bc3 Ke6 38. Bxa5 Ne5 39. Rxe5+ 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.16"]
[Round "4"]
[White "Fedoseev, Vladimir1"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "C93"]
[WhiteElo "2222"]
[BlackElo "2235"]
[PlyCount "115"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bd7 13. Ng3 Na5 14. Bc2 c5 15. d5 Nc4 16. a4 Nb6 17. axb5 axb5 18. Rxa8 Qxa8 19. Nh2 Qd8 20. b3 Qe7 21. Be3 g6 22. Qd2 Kh7 23. Ra1 Ra8 24. Rxa8 Nxa8 25. Bd3 Be8 26. Qa2 Qb7 27. Ne2 Nc7 28. f4 exf4 29. Nxf4 Qa6 30. Qb1 Nd7 31. Nf3 Bg7 32. Ne2 c4 33. bxc4 bxc4 34. Bc2 Nb5 35. Nfd4 Na3 36. Qb2 Nc5 37. Nf3 Qa5 38. Bd4 Nxc2 39. Qxc2 Ba4 40. Qb1 Bb3 41. Kh2 Bxd4 42. Nfxd4 Qa2 43. Qf1 Qa7 44. Qf4 Qe7 45. Nc6 Qd7 46. Ng3 Ba4 47. Nd4 Kg7 48. Ndf5+ gxf5 49. Nxf5+ Kf6 50. Nxd6+ Kg6 51. Qg3+ Kh7 52. Nf5 f6 53. Qf4 Bc2 54. Qxh6+ Kg8 55. Qg6+ Kf8 56. Qxf6+ Kg8 57. Ne7+ Kh7 58. Qf7+ 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.15"]
[Round "3"]
[White "Vunder, Yakov"]
[Black "Orlov, Anatoly"]
[Result "1-0"]
[ECO "D74"]
[WhiteElo "2235"]
[BlackElo "2061"]
[PlyCount "79"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 c6 6. Nf3 Bg7 7. 0-0 0-0 8. d4 Na6 9. e4 Nb6 10. h3 Nc7 11. a4 Ne6 12. a5 Nd7 13. Be3 Nc7 14. Qb3 e5 15. d5 cxd5 16. exd5 Na6 17. Nb5 Ndc5 18. Qc4 b6 19. b4 e4 20. Nfd4 Nd3 21. Nc6 Qd7 22. Rab1 bxa5 23. bxa5 f5 24. Nbxa7 Kh8 25. Nxc8 Qxc8 26. Bd4 Qd7 27. Rb6 Nb8 28. Bxg7+ Qxg7 29. a6 Qf6 30. Rxb8 Rfxb8 31. Nxb8 Rxb8 32. a7 Ra8 33. Qb5 Qd8 34. Qb7 Nc5 35. Qc6 Rc8 36. a8Q Rxa8 37. Qxc5 Ra5 38. Qd4+ Kg8 39. d6 Qd7 40. Rc1 1-0

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.14"]
[Round "2"]
[White "Anosov, Sergey"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2070"]
[BlackElo "2235"]
[PlyCount "24"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bb4+ 5. Nc3 Nf6 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 Qe7+ 9. Qe2 Qxe2+ 10. Bxe2 Nxd5 11. Bd2 Nxc3 12. bxc3 Bd6 1/2-1/2

[Event "St Petersburg Chigorin CC-ch"]
[Site "St Petersburg"]
[Date "2008.05.13"]
[Round "1"]
[White "Vunder, Yakov"]
[Black "Khatenever, Feliks"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2235"]
[BlackElo "1980"]
[PlyCount "101"]
[EventDate "2008.05.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 e6 3. c4 Nf6 4. Nc3 c6 5. e3 Be7 6. Bd3 Nbd7 7. 0-0 Qc7 8. b3 0-0 9. Bb2 b6 10. Rc1 Bb7 11. Qe2 Rac8 12. Rfd1 Qb8 13. e4 dxe4 14. Nxe4 Rfd8 15. Neg5 Nf8 16. Ne5 N6d7 17. Ngxf7 Nxe5 18. Nxe5 Bf6 19. Ng4 Bg5 20. Rc3 Qd6 21. c5 Qe7 22. g3 Rc7 23. Be4 Rcd7 24. cxb6 Rxd4 25. Rxd4 Rxd4 26. Rc2 Rxe4 27. Qxe4 axb6 28. h4 Bf6 29. Nxf6+ gxf6 30. Qd4 e5 31. Qxb6 Qd7 32. Rc1 Ne6 33. b4 Kf7 34. Kh2 e4 35. Qe3 Qd5 36. a4 Kg6 37. a5 Ba6 38. Re1 Bd3 39. a6 Bxa6 40. Qxe4+ Qxe4 41. Rxe4 Kf5 42. Re3 Nc7 43. Rf3+ Ke4 44. Rxf6 Bb5 45. Rf7 Nd5 46. Rxh7 Nxb4 47. Rf7 Nd3 48. Bc3 Bc4 49. Rf8 Nc5 50. h5 Ne6 51. Rf6 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.30"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Bragina, Anastasia"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2235"]
[BlackElo "2042"]
[PlyCount "72"]
[EventDate "2008.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Be2 dxc4 7. a4 c5 8. Bxc4 cxd4 9. exd4 Nb6 10. Bb3 Bb4 11. 0-0 Nbd5 12. Qd3 0-0 13. Bg5 Qa5 14. Rac1 b6 15. Ne5 Bb7 16. Nb5 Rac8 17. Nc4 Qa6 18. Qh3 h6 19. Bxf6 Nxf6 20. Ne3 Bc6 21. Bxe6 fxe6 22. Qxe6+ Kh8 23. Rxc6 Rxc6 24. Qxc6 Qxa4 25. Qc4 a6 26. Nc3 Qa5 27. Ncd5 Nxd5 28. Nxd5 Bd6 29. Qc6 Bb8 30. Nxb6 Ba7 31. Nd7 Rd8 32. Ne5 Qd5 33. Ng6+ Kh7 34. Ne7 Qxd4 35. Qc2+ Qd3 36. Qc7 Rd7 0-1

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.29"]
[Round "8"]
[White "Vunder, Yakov"]
[Black "Kluchik, Julia"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "2235"]
[BlackElo "1961"]
[PlyCount "91"]
[EventDate "2008.03.22"]
[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 g6 2. Nf3 Bg7 3. c4 d6 4. Nc3 Nf6 5. g3 0-0 6. Bg2 c5 7. 0-0 Bd7 8. dxc5 dxc5 9. Ne5 Qc8 10. Nxd7 Nbxd7 11. Qb3 Nb6 12. Nb5 Qg4 13. Bf4 g5 14. Bf3 Qf5 15. Bc7 Qc8 16. Bxb6 axb6 17. Nc3 Qc7 18. Rad1 Rab8 19. Na4 Nd7 20. Rd5 h6 21. Rfd1 Rfd8 22. Qb5 Ne5 23. Nxb6 Nxf3+ 24. exf3 Bd4 25. Rxd8+ Rxd8 26. Nd5 Qd7 27. Qxd7 Rxd7 28. Kf1 Kf8 29. Ne3 e6 30. b3 Ke7 31. Ke2 Rd8 32. Nc2 e5 33. Ne3 Ke6 34. Nd5 f5 35. h4 gxh4 36. Rh1 Rg8 37. Rxh4 Rg6 38. b4 cxb4 39. Rxd4 exd4 40. Nf4+ Kf6 41. Nxg6 Kxg6 42. Kd3 f4 43. Kxd4 Kf6 44. Ke4 Kg5 45. g4 b6 46. Ke5 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.28"]
[Round "7"]
[White "Yudin, Maksim"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "C93"]
[WhiteElo "2066"]
[BlackElo "2235"]
[PlyCount "85"]
[EventDate "2008.03.22"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bd7 13. Ng3 g6 14. Nh4 Na5 15. Nxg6 Nxb3 16. Nxf8 Nxa1 17. Nxd7 Qxd7 18. Bxh6 exd4 19. cxd4 Qe6 20. Qc1 Kh7 21. Qg5 Rg8 22. Qh4 Rg6 23. Nf5 Nc2 24. Bg7+ Nh5 25. Qxh5+ Rh6 26. Bxh6 Qg6 27. Qxg6+ fxg6 28. Rc1 gxf5 29. Rxc2 Kxh6 30. exf5 Kg5 31. g4 Rc8 32. d5 Kf4 33. Re2 c6 34. dxc6 Rxc6 35. Kg2 d5 36. f3 Rd6 37. h4 a5 38. Re6 Rd8 39. h5 Rc8 40. f6 d4 41. Re4+ Kg5 42. f7 d3 43. Re8 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.27"]
[Round "6"]
[White "Guzenko, Artem"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "B35"]
[WhiteElo "2088"]
[BlackElo "2235"]
[PlyCount "107"]
[EventDate "2008.03.22"]
[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 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Be3 Nc6 6. Nc3 Nf6 7. h3 0-0 8. Bc4 Nxe4 9. Nxe4 d5 10. Nxc6 bxc6 11. Bb3 dxe4 12. c3 Ba6 13. Qxd8 Rfxd8 14. Rd1 Bd3 15. h4 a5 16. Ba4 Rab8 17. Rd2 c5 18. Bxc5 Rxb2 19. Rxb2 Bxc3+ 20. Rd2 Bc2 21. 0-0 Rxd2 22. Rc1 Bxa4 23. Rxc3 Rxa2 24. Bxe7 f5 25. Rc7 Bb3 26. Bf6 Rc2 27. Rg7+ Kf8 28. Rxh7 Rc6 29. Bb2 Bf7 30. Rh8+ Bg8 31. h5 Rb6 32. h6 Rb7 33. Ba3+ Kf7 34. h7 Rb1+ 35. Kh2 Bxh7 36. Rxh7+ Ke6 37. Ra7 f4 38. Ra6+ Kd5 39. Rxa5+ Kd4 40. Bc5+ Kd3 41. Ra3+ Kc4 42. Ba7 Rb7 43. Kh3 Kb4 44. Ra1 Kc3 45. Kg4 g5 46. g3 fxg3 47. Kxg3 Rd7 48. Be3 Rd5 49. Ra4 Kd3 50. Kg4 Rd8 51. Ra2 Re8 52. Rd2+ Kc3 53. Kxg5 Ra8 54. Rd4 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.26"]
[Round "5"]
[White "Vunder, Yakov"]
[Black "Airumian, Sergei"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "2235"]
[BlackElo "2060"]
[PlyCount "101"]
[EventDate "2008.03.22"]
[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 b6 3. e3 Bb7 4. Bd3 e6 5. 0-0 c5 6. b3 cxd4 7. exd4 Nc6 8. Bb2 Qc7 9. c4 Nb4 10. Be2 Ng4 11. h3 Bxf3 12. hxg4 Bb7 13. Nc3 a6 14. a3 Nc6 15. d5 Ne5 16. Ne4 d6 17. f4 Nd7 18. dxe6 Bxe4 19. exd7+ Qxd7 20. Bf3 Bxf3 21. Qxf3 Rc8 22. Rfe1+ Kd8 23. Bd4 Kc7 24. f5 Qc6 25. Qe3 h5 26. g5 h4 27. b4 Qb7 28. Rac1 Kb8 29. Bxb6 f6 30. g6 Rh5 31. c5 dxc5 32. Bxc5 h3 33. Ba7+ Ka8 34. Rxc8+ Qxc8 35. Qf3+ Qb7 36. Qxb7+ Kxb7 37. g4 Rh4 38. Bc5 Rxg4+ 39. Kh2 Bxc5 40. bxc5 Rf4 41. Re7+ Kc6 42. Rxg7 Rxf5 43. Ra7 Rxc5 44. Rxa6+ Kd7 45. Rxf6 Ke7 46. Rf3 Rc6 47. g7 Rc8 48. Rg3 Kf7 49. g8Q+ Rxg8 50. Rxg8 Kxg8 51. a4 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.25"]
[Round "4"]
[White "Vunder, Yakov"]
[Black "Smirnov, Artem"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2235"]
[BlackElo "2438"]
[PlyCount "72"]
[EventDate "2008.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. Nc3 Ne7 5. e3 c6 6. Nge2 d5 7. cxd5 cxd5 8. d4 exd4 9. Nxd4 Nbc6 10. 0-0 0-0 11. Nde2 Bg4 12. Qa4 Bxe2 13. Nxe2 Qb6 14. Rb1 Rfd8 15. Bd2 d4 16. e4 d3 17. Nf4 Rac8 18. Nd5 Nxd5 19. exd5 Nd4 20. Be3 Rc2 21. Rfd1 Rxb2 22. Rxb2 Qxb2 23. Rxd3 Ne2+ 24. Kf1 Nc3 25. Rxc3 Qxc3 26. Qxa7 Qd3+ 27. Kg1 Qd1+ 28. Bf1 Qxd5 29. h4 Be5 30. Bg2 Qd1+ 31. Kh2 Qg4 32. f4 Bc3 33. f5 Qxf5 34. Qxb7 Be5 35. Qb3 Rd3 36. Qb6 Qg4 0-1

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.24"]
[Round "3"]
[White "Bagrunov, Vladimir"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2038"]
[BlackElo "2235"]
[PlyCount "94"]
[EventDate "2008.03.22"]
[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 e6 3. Bf4 c5 4. e3 Nc6 5. c3 d5 6. Bd3 Bd6 7. 0-0 0-0 8. Nbd2 Qe7 9. Qe2 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Bxe5 Qxe5 13. f4 Qe7 14. f5 Re8 15. Rae1 Bd7 16. g4 h6 17. h4 Qd6 18. Kg2 Bc6 19. Kh3 Rad8 20. g5 Ne4 21. Nxe4 dxe4 22. Bc4 hxg5 23. hxg5 Bd5 24. Bxd5 Qxd5 25. Qh5 Qe5 26. Kg4 Rd2 27. Rf4 g6 28. fxg6 Qe6+ 29. Kg3 Qxg6 30. Qxg6+ fxg6 31. Rf2 Rd5 32. Kh4 Kg7 33. Ref1 Re7 34. Kg4 Rd3 35. Kf4 c4 36. Re1 Rd5 37. Ree2 b5 38. Rd2 Rd3 39. Rh2 Rf7+ 40. Kxe4 Re7+ 41. Kf4 Rdxe3 42. Rd4 Re1 43. Rhd2 Rf1+ 44. Kg3 Rg1+ 45. Kh4 Rh1+ 46. Kg4 Rg1+ 47. Kh4 Rh1+ 1/2-1/2

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.23"]
[Round "2"]
[White "Vunder, Yakov"]
[Black "Abramichev, Artyom"]
[Result "1-0"]
[ECO "D32"]
[WhiteElo "2235"]
[BlackElo "1985"]
[PlyCount "85"]
[EventDate "2008.03.22"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 c5 5. cxd5 exd5 6. Bg5 Be6 7. e3 Nbd7 8. Bb5 a6 9. Bxd7+ Qxd7 10. dxc5 Bxc5 11. Ne5 Qd6 12. Bf4 Qe7 13. Qa4+ Nd7 14. 0-0 0-0 15. Nxd7 Bxd7 16. Qb3 Bc6 17. Rad1 Rad8 18. Rfe1 Qe6 19. Ne2 Rfe8 20. Bc7 Rd7 21. Ba5 Qe4 22. Ng3 Qe5 23. Bc3 Qg5 24. Qc2 Ba7 25. Qf5 Qxf5 26. Nxf5 f6 27. Bd4 Bb8 28. f3 Be5 29. Kf2 Kf7 30. f4 Bc7 31. g4 Ba5 32. Rg1 g6 33. Nh6+ Ke7 34. h4 Rc7 35. f5 Bb5 36. Rc1 Rec8 37. Rxc7+ Bxc7 38. g5 Be5 39. fxg6 Rc2+ 40. Ke1 hxg6 41. gxf6+ Ke6 42. f7 Rc8 43. Rxg6+ 1-0

[Event "St Petersburg March op"]
[Site "St Petersburg"]
[Date "2008.03.22"]
[Round "1"]
[White "Svidinsky, Dmitry"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "C93"]
[WhiteElo "2052"]
[BlackElo "2235"]
[PlyCount "60"]
[EventDate "2008.03.22"]
[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 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 h6 10. d4 Re8 11. a4 Bd7 12. Nbd2 Bf8 13. Bc2 exd4 14. Nxd4 Ne5 15. Nf1 c5 16. Nf3 Bc6 17. Nxe5 dxe5 18. Qxd8 Rexd8 19. f3 c4 20. Be3 Nd7 21. axb5 axb5 22. Kf2 b4 23. cxb4 Bxb4 24. Red1 Nc5 25. Rxa8 Rxa8 26. Bd2 Bxd2 27. Rxd2 Rb8 28. Ne3 Rxb2 29. Nxc4 Ra2 30. Bd1 Rxd2+ 1/2-1/2

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.07.01"]
[Round "7"]
[White "Kostyuchenko, Vladimir"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "D60"]
[WhiteElo "2152"]
[BlackElo "2242"]
[PlyCount "45"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. cxd5 Nxd5 8. Bxe7 Qxe7 9. Rc1 c6 10. Bd3 N5f6 11. Ne5 Nxe5 12. dxe5 Nd7 13. f4 f6 14. Qc2 fxe5 15. Bxh7+ Kh8 16. 0-0 g5 17. Bd3 exf4 18. exf4 Rxf4 19. Qe2 Nf6 20. Qe5 Qg7 21. g3 Rxf1+ 22. Rxf1 Ng8 23. Rf7 1-0

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.06.30"]
[Round "6"]
[White "Vunder, Yakov"]
[Black "Davydov, Andrey"]
[Result "0-1"]
[ECO "E54"]
[WhiteElo "2242"]
[BlackElo "2366"]
[PlyCount "98"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. Nf3 e6 2. c4 d5 3. d4 Nf6 4. Nc3 dxc4 5. e3 c5 6. Bxc4 a6 7. a4 Nbd7 8. 0-0 cxd4 9. exd4 Be7 10. Bg5 0-0 11. Re1 Nb6 12. Bb3 Bd7 13. a5 Nc8 14. Ne5 Bc6 15. Bxf6 Bxf6 16. d5 exd5 17. Bxd5 Bxe5 18. Rxe5 Ne7 19. Bxc6 Nxc6 20. Rd5 Qe7 21. Rd2 Rad8 22. Nd5 Qe6 23. Ra3 Kh8 24. Re3 Qf5 25. b4 Rd7 26. Red3 Rfd8 27. h3 h6 28. Qg4 Qxg4 29. hxg4 Ne5 30. Rd4 Nxg4 31. Rxg4 Rxd5 32. Rc2 R8d7 33. Rcc4 g6 34. g3 Kg7 35. Rgf4 g5 36. Rfe4 Rd2 37. Re5 Rb2 38. g4 Kg6 39. Re3 Rdd2 40. Rf3 Rb1+ 41. Kg2 Rdb2 42. Rc7 Rxb4 43. Rfxf7 Rxg4+ 44. Kf3 Ra4 45. Rg7+ Kh5 46. Rc5 Rb2 47. Rc1 Rb3+ 48. Kg2 Rg4+ 49. Kh2 Kh4 0-1

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.06.29"]
[Round "5"]
[White "Gnidenko, Andrey"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2135"]
[BlackElo "2242"]
[PlyCount "56"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Nf3 Nf6 6. Bg5 c6 7. Qc2 Nbd7 8. e3 Nh5 9. Bxe7 Qxe7 10. Be2 Nhf6 11. 0-0 0-0 12. Rab1 Nb6 13. b4 Bg4 14. Bd3 Bxf3 15. gxf3 Nc4 16. Bxc4 dxc4 17. Kh1 Nd5 18. b5 Qf6 19. f4 Nxc3 20. Qxc3 cxb5 21. f3 Qc6 22. e4 a6 23. Rg1 Qd6 24. Rg4 f5 25. e5 Qd5 26. Rg5 Rad8 27. Rbg1 g6 28. Rd1 b4 0-1

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.06.28"]
[Round "4"]
[White "Vunder, Yakov"]
[Black "Zacurdajev, Mikhail"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2242"]
[BlackElo "2384"]
[PlyCount "84"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Nd5 e4 6. Ng1 Bc5 7. Ne2 Nxd5 8. cxd5 Ne5 9. Nc3 f5 10. d4 exd3 11. Bxd3 0-0 12. 0-0 d6 13. Be2 Qh4 14. Qa4 Qe7 15. Bd2 Bd7 16. Qc2 Qh4 17. f4 Ng4 18. Bxg4 Qxg4 19. Rae1 b5 20. Kh1 Rf6 21. Rf3 Rh6 22. Ne2 Re8 23. Rg3 Qh5 24. Rh3 Qg6 25. Rg3 Qf7 26. b4 Bb6 27. Nc3 Rg6 28. Rxg6 hxg6 29. Qd3 a6 30. a4 bxa4 31. Qxa6 Qf6 32. Qd3 g5 33. fxg5 Qxg5 34. b5 Qh4 35. Rf1 a3 36. Rf4 Qh5 37. Ra4 Bc5 38. h3 Qg5 39. e4 Qh4 40. Qf3 fxe4 41. Qe2 Bxh3 42. Be1 Qh7 0-1

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.06.27"]
[Round "3"]
[White "Tolkachiov, Vladimir"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "C92"]
[BlackElo "2242"]
[PlyCount "74"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Nd7 10. d4 Bf6 11. a4 Bb7 12. a5 Re8 13. Bd5 Rb8 14. Qb3 Rf8 15. Be3 Ne7 16. Bxb7 Rxb7 17. Nbd2 c5 18. d5 Ng6 19. Qc2 Nf4 20. Kh2 c4 21. g3 Nd3 22. Rg1 N7c5 23. g4 Qc8 24. g5 Bd8 25. Nh4 g6 26. Nhf3 f5 27. gxf6 Rxf6 28. Rg3 Rbf7 29. Kg2 Nf4+ 30. Kh2 Nh5 31. Kg2 Nxg3 32. fxg3 Nb3 33. Rd1 Nxd2 34. Nxd2 Bxa5 35. Nf1 Rxf1 36. Rxf1 Rxf1 37. Kxf1 Qxh3+ 0-1

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.06.26"]
[Round "2"]
[White "Vunder, Yakov"]
[Black "Kopasov, Evgeny Aleksandrovi"]
[Result "1/2-1/2"]
[ECO "E60"]
[WhiteElo "2242"]
[BlackElo "2110"]
[PlyCount "57"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. e3 0-0 5. Be2 d5 6. cxd5 Nxd5 7. 0-0 Nc6 8. e4 Nb6 9. Be3 Bg4 10. Nbd2 f5 11. d5 fxe4 12. dxc6 exf3 13. Bxf3 Bxf3 14. Nxf3 Qxd1 15. Raxd1 Bxb2 16. cxb7 Rab8 17. Rb1 Ba3 18. Rb3 Bd6 19. a4 a5 20. Rb5 Rxb7 21. Rfb1 Bb4 22. Nd4 Rf6 23. Nc2 Rf5 24. Nxb4 Rxb5 25. axb5 axb4 26. Rxb4 Nd5 27. Rb3 Nxe3 28. fxe3 Kf7 29. Rc3 1/2-1/2

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "2007.06.25"]
[Round "1"]
[White "Khatenever, Feliks"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "1981"]
[BlackElo "2242"]
[PlyCount "70"]
[EventDate "2007.06.25"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "CBM 119 Extra"]
[Source "ChessBase"]
[SourceDate "2007.09.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.09.04"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nge2 d6 6. 0-0 e5 7. d3 Nge7 8. Be3 0-0 9. Qd2 Nd4 10. Nd1 f5 11. f4 Rb8 12. c3 Nxe2+ 13. Qxe2 b6 14. Nf2 Be6 15. Qc2 Qd7 16. fxe5 dxe5 17. a4 f4 18. Bc1 g5 19. Nh1 Rbd8 20. a5 Qxd3 21. Qxd3 Rxd3 22. Nf2 Rd6 23. axb6 axb6 24. gxf4 gxf4 25. b4 cxb4 26. cxb4 Bc4 27. Re1 Rg6 28. Kh1 Bf6 29. Bf1 Rc8 30. Bh3 Bh4 31. Bxc8 Bxf2 32. Bb2 Bxe1 33. Bf5 f3 34. Ra8+ Kf7 35. Bh3 f2 0-1

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.19"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Malofeev, Alex"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2242"]
[BlackElo "2279"]
[PlyCount "9"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. g3 g6 4. Bg2 Bg7 5. e3 1/2-1/2

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.18"]
[Round "8"]
[White "Znamensky, Vladimir"]
[Black "Vunder, Yakov"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2369"]
[BlackElo "2242"]
[PlyCount "72"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 e6 3. c3 c5 4. g3 Nc6 5. Bg2 Nf6 6. 0-0 Be7 7. Bf4 0-0 8. Ne5 cxd4 9. Nxc6 bxc6 10. cxd4 Qb6 11. Qd2 c5 12. dxc5 Bxc5 13. Nc3 Bd7 14. a3 Rac8 15. Bf3 d4 16. Ne4 Nxe4 17. Bxe4 Bc6 18. Bxc6 Qxc6 19. b4 Bb6 20. Rac1 Qe4 21. Rxc8 Rxc8 22. Rc1 Rxc1+ 23. Qxc1 h6 24. Qc8+ Kh7 25. Qc4 e5 26. Bd2 Qf5 27. a4 d3 28. e3 e4 29. a5 Bd8 30. f4 Qg6 31. Qd5 Be7 32. b5 f5 33. b6 axb6 34. a6 Qg4 35. a7 Qd1+ 36. Kg2 Qe2+ 1/2-1/2

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.17"]
[Round "7"]
[White "Vunder, Yakov"]
[Black "Valov, Ilya"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2242"]
[BlackElo "2306"]
[PlyCount "77"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Be7 7. 0-0 Be6 8. d4 exd4 9. Nxd4 Nxc3 10. bxc3 Nxd4 11. cxd4 c6 12. Rb1 Qd7 13. Qa4 0-0 14. d5 Bxd5 15. Bxd5 Qxd5 16. Rxb7 Bc5 17. Rc7 Rac8 18. Rxc8 Rxc8 19. Ba3 Bb6 20. Qc2 Qa5 21. Qb3 c5 22. Bb2 c4 23. Qc3 f6 24. a3 Qd5 25. Qc2 c3 26. Bc1 Qc4 27. Rd1 Rd8 28. Rxd8+ Bxd8 29. Qd3 Qxd3 30. exd3 Kf7 31. Kf1 Ke6 32. Ke2 Kd5 33. Kd1 Bb6 34. Be3 Bd4 35. Kc2 Kc5 36. Kb3 Kd5 37. Kc2 Kc5 38. Kb3 Kd5 39. Kc2 1/2-1/2

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.16"]
[Round "6"]
[White "Kurilov, Viktor"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "2324"]
[BlackElo "2242"]
[PlyCount "81"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. c3 d5 4. e5 Nc6 5. h3 Bg7 6. d4 Qb6 7. dxc5 Qxc5 8. Be3 Qa5 9. b4 Qc7 10. Qxd5 Be6 11. Qc5 b6 12. Qb5 Bd7 13. Bf4 Nd4 14. Qd3 Ne6 15. Bh2 Nh6 16. Be2 0-0 17. 0-0 Rfd8 18. Nbd2 Rac8 19. Rac1 a5 20. a3 Nf5 21. Qb1 Bc6 22. Bd3 Bh6 23. Bxf5 gxf5 24. Rc2 Be4 25. Nxe4 fxe4 26. Nh4 Bf4 27. g3 Bxe5 28. Re2 Ng5 29. f4 exf3 30. Nxf3 Nxf3+ 31. Rxf3 Bxc3 32. Qf5 e6 33. Qg5+ Bg7 34. Kg2 axb4 35. g4 Qc4 36. Ref2 Rd5 37. Qe7 Qe4 38. Qb7 Rcd8 39. axb4 Rd4 40. Qxf7+ Kh8 41. Kg3 0-1

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.13"]
[Round "5"]
[White "Vunder, Yakov"]
[Black "Gantsevich, Aleksei"]
[Result "1-0"]
[ECO "A24"]
[WhiteElo "2242"]
[BlackElo "1985"]
[PlyCount "93"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e3 e5 6. Nge2 d6 7. 0-0 Re8 8. d3 c6 9. Rb1 a5 10. b3 Na6 11. Bb2 Bf5 12. e4 Bd7 13. d4 Qc7 14. Qd2 Nh5 15. Rbd1 Rad8 16. h3 Nb4 17. Kh2 f5 18. a3 Na6 19. d5 c5 20. Nb5 Bxb5 21. cxb5 Nb8 22. exf5 gxf5 23. Qg5 Qf7 24. Bf3 Nf6 25. Qxf5 Nbd7 26. Qc2 e4 27. Bg2 Ne5 28. Nf4 c4 29. bxc4 Rc8 30. Bxe5 Rxe5 31. Qe2 Qc7 32. Rc1 Bh6 33. Ne6 Qf7 34. Rc2 Qg6 35. Nd4 Nh5 36. Qg4 Qxg4 37. hxg4 Nf6 38. Bh3 Rg5 39. Ne6 Nxg4+ 40. Bxg4 Rxg4 41. c5 dxc5 42. d6 Bg5 43. d7 Rd8 44. Nxd8 Bxd8 45. Rxc5 Kf7 46. Re5 Be7 47. f3 1-0

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.12"]
[Round "4"]
[White "Kopasov, Alexander"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "2063"]
[BlackElo "2242"]
[PlyCount "72"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. cxd5 exd5 5. Bf4 Nf6 6. e3 0-0 7. Bd3 c5 8. dxc5 Bxc5 9. Nge2 Nc6 10. 0-0 Be6 11. Bg5 d4 12. Ne4 Be7 13. Bxf6 Bxf6 14. Nxf6+ Qxf6 15. Nxd4 Nxd4 16. exd4 Rad8 17. Qc2 g6 18. Rad1 Rxd4 19. b3 Rfd8 20. Be4 b6 21. Qc3 Kg7 22. Rxd4 Qxd4 23. Qc2 Bg4 24. h3 Bd1 25. Qb1 Be2 26. Re1 Qd2 27. Rc1 Bd1 28. Qa1+ Kg8 29. Qf6 Bxb3 30. Rc7 Bxa2 31. Rxa7 Be6 32. h4 Qd1+ 33. Kh2 Qd4 34. Qf3 Qe5+ 35. g3 Rd4 36. Bc6 Rxh4+ 0-1

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.11"]
[Round "3"]
[White "Vunder, Yakov"]
[Black "Karalkin, Maksim"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "2242"]
[BlackElo "2388"]
[PlyCount "112"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c6 3. e4 d6 4. d4 g6 5. Nf3 Bg7 6. Be2 0-0 7. 0-0 e5 8. dxe5 dxe5 9. Qxd8 Rxd8 10. Be3 Nbd7 11. Rad1 Re8 12. Nd2 Nf8 13. f3 Ne6 14. c5 Nd7 15. Na4 b5 16. cxb6 axb6 17. Nxb6 Nxb6 18. Bxb6 Rxa2 19. Rb1 Nd4 20. Bc4 Ra4 21. b3 Ra2 22. Rfd1 Bh6 23. Bxd4 exd4 24. Nf1 Rd8 25. Ra1 Rxa1 26. Rxa1 Be6 27. Bxe6 fxe6 28. Rd1 c5 29. g3 Rb8 30. Rd3 e5 31. h4 Kf7 32. Nh2 Ke6 33. f4 exf4 34. Ng4 Bf8 35. gxf4 Bd6 36. Rf3 Rf8 37. e5 Be7 38. Nf2 Bxh4 39. Nd3 Be7 40. Rf2 Kd5 41. Rh2 Rf7 42. Re2 c4 43. bxc4+ Kxc4 44. Nb2+ Kb3 45. Nd1 Rxf4 46. Rb2+ Kc4 47. Rb7 Bf8 48. Rxh7 d3 49. Rd7 Bc5+ 50. Kg2 Bd4 51. e6 Re4 52. e7 d2 53. Kf3 Re6 54. Nb2+ Bxb2 55. Rxd2 Ba3 56. Rg2 Bxe7 0-1

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.10"]
[Round "2"]
[White "Dushin, Nikolay"]
[Black "Vunder, Yakov"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "2229"]
[BlackElo "2242"]
[PlyCount "60"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 0-0 6. e3 Nbd7 7. cxd5 Nxd5 8. Bxe7 Qxe7 9. Rc1 c6 10. Bd3 N5f6 11. 0-0 e5 12. Bf5 exd4 13. Qxd4 Nb6 14. Bb1 Bg4 15. Ng5 h6 16. Nh7 Nxh7 17. Qxg4 Nf6 18. Qh4 Qe5 19. Rcd1 Rad8 20. Bd3 Nbd5 21. Qc4 b5 22. Qc5 Ng4 23. g3 Ndxe3 24. Qxe5 Nxe5 25. fxe3 Nxd3 26. Rf5 Nxb2 27. Rb1 Nc4 28. e4 Rd3 29. Ne2 Rd2 30. Nc3 Rc2 0-1

[Event "Spring on Petrograd Side"]
[Site "St Petersburg"]
[Date "2007.04.09"]
[Round "1"]
[White "Vunder, Yakov"]
[Black "Mukha, Aleksey"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "2242"]
[BlackElo "1856"]
[PlyCount "134"]
[EventDate "2007.04.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. Nf3 c5 2. e3 Nf6 3. d4 e6 4. Bd3 d5 5. b3 Nbd7 6. 0-0 Be7 7. Bb2 0-0 8. Nbd2 b6 9. Ne5 Bb7 10. Qe2 a6 11. f4 Ne4 12. Rad1 f6 13. Nxd7 Qxd7 14. Bxe4 dxe4 15. dxc5 Qc6 16. cxb6 Qxc2 17. Bd4 Rac8 18. Qg4 Bd5 19. Nb1 Qxa2 20. Nc3 Rxc3 21. Bxc3 Qxb3 22. Bd4 Bc4 23. Rb1 Qa2 24. Rb2 Qa3 25. b7 Bd6 26. Rfb1 e5 27. b8Q Bxb8 28. Rxb8 exd4 29. Rxf8+ Qxf8 30. Qd7 dxe3 31. Qd4 Bd3 32. Rb7 e2 33. Kf2 h6 34. Qa7 Kh7 35. Rf7 e3+ 36. Qxe3 Qxf7 37. Qxd3+ Qg6 38. Qxa6 e1Q+ 39. Kxe1 Qxg2 40. Qd3+ Qg6 41. Qe3 Qg4 42. Kf2 h5 43. h3 Qf5 44. Kg3 Kh6 45. Qe7 Qd3+ 46. Kg2 h4 47. Qe1 g5 48. fxg5+ fxg5 49. Qe6+ Qg6 50. Qg4 Qc2+ 51. Kg1 Qc1+ 52. Kg2 Qd2+ 53. Kg1 Qf4 54. Qe6+ Kg7 55. Qe7+ Kg6 56. Qe6+ Qf6 57. Qe4+ Kf7 58. Kg2 Qe6 59. Qh7+ Kf6 60. Qd3 Qa2+ 61. Kf3 Qh2 62. Qc3+ Qe5 63. Qc6+ Qe6 64. Qc3+ Kg6 65. Kg2 Qe4+ 66. Kg1 Kf5 67. Qc1 Kg6 1/2-1/2

[Event "St Petersburg-ch sf"]
[Site "St Petersburg"]
[Date "2007.02.18"]
[Round "9"]
[White "Vunder, Yakov"]
[Black "Nikitinyh, Boris Aleksandrovic"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2242"]
[BlackElo "2266"]
[PlyCount "56"]
[EventDate "2007.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 d6 4. Nc3 g6 5. e3 Bg7 6. Nge2 Nge7 7. 0-0 h5 8. d4 h4 9. d5 Nb8 10. e4 Nd7 11. f4 hxg3 12. hxg3 Nf6 13. fxe5 Ng4 14. e6 fxe6 15. Bf3 exd5 16. Nf4 Ne5 17. exd5 Nf5 18. Qe1 Qe7 19. Be4 Bd7 20. Ne6 Bxe6 21. dxe6 c6 22. Qf2 Ng4 23. Qe1 Bd4+ 24. Kg2 Rh2+ 25. Kf3 Ne5+ 26. Kf4 Qf6 27. Bb1 Nxg3+ 28. Kxg3 Qh4# 0-1

[Event "St Petersburg-ch sf"]
[Site "St Petersburg"]
[Date "2007.02.17"]
[Round "8"]
[White "Vunder, Yakov"]
[Black "Nikolaev, Vadim S"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2242"]
[BlackElo "2246"]
[PlyCount "79"]
[EventDate "2007.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. g3 b6 4. Bg2 Bb7 5. 0-0 Nd7 6. cxd5 exd5 7. d4 Ngf6 8. Nc3 Be7 9. Bf4 a6 10. Rc1 Rc8 11. Ne5 0-0 12. Bh3 Ra8 13. Qb3 Nxe5 14. Bxe5 c6 15. Na4 b5 16. Bxf6 Bxf6 17. Nc5 Bc8 18. Bxc8 Qxc8 19. e3 Rd8 20. Rc2 Rd6 21. Rfc1 h5 22. Nd3 Qd7 23. Nb4 Rc8 24. Nxa6 h4 25. Qd3 Bd8 26. Nc5 Qa7 27. Qf5 Rb8 28. a3 g6 29. Qg4 f5 30. Qf4 Qe7 31. Qe5 Rb6 32. Qxe7 Bxe7 33. Nd3 hxg3 34. hxg3 Re6 35. Ne5 b4 36. axb4 Rxb4 37. Rxc6 Rxc6 38. Rxc6 g5 39. Rc8+ Kg7 40. Rc7 1-0

[Event "St Petersburg-ch sf"]
[Site "St Petersburg"]
[Date "2007.02.16"]
[Round "7"]
[White "Barhudarian, Rafael"]
[Black "Vunder, Yakov"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2306"]
[BlackElo "2242"]
[PlyCount "73"]
[EventDate "2007.02.10"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2008"]
[Source "ChessBase"]
[SourceDate "2007.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2007.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Bxc6 dxc6 6. d3 Nd7 7. Nbd2 g6 8. h4 h5 9. b3 Bg7 10. Bb2 c5 11. Nc4 Qe7 12. Qe2 b6 13. 0-0-0 Bb7 14. Kb1 0-0-0 15. Rhe1 Rhe8 16. g3 f6 17. Nfd2 Nf8 18. g4 hxg4 19. Qxg4+ Qe6 20. Rg1 Qxg4 21. Rxg4 Bh6 22. Bc1 Re7 23. Rgg1 Rh7 24. Nf3 Bxc1 25. Kxc1 Rh6 26. Ne3 Ne6 27. Ng4 Rhh8 28. Nxf6 Rdf8 29. Rxg6 Nf4 30. Nxe5 Rxh4 31. Rg4 Ne2+ 32. Kd2 Rhh8 33. Ng6 Rxf6 34. Nxh8 Rxf2 35. Ke3 Rh2 36. Rg8+ Kd7 37. Rd2 1-0

