[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "7"]
[White "Christiansen, Larry Mark"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2575"]
[BlackElo "2460"]
[PlyCount "119"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c6 3. c4 Nf6 4. Nc3 Qb6 5. g3 Bf5 6. Nh4 Bg6 7. Nxg6 hxg6 8. Qb3 e6 9. Bg2 Nbd7 10. 0-0 Be7 11. Rd1 0-0 12. e4 Nxe4 13. Nxe4 dxe4 14. Bxe4 Nf6 15. Bf3 Qxb3 16. axb3 Rfd8 17. Be3 Rd7 18. g4 Bd8 19. b4 a6 20. g5 Nh7 21. h4 Be7 22. d5 cxd5 23. cxd5 exd5 24. Rxd5 Rad8 25. Rxd7 Rxd7 26. Rc1 Bxb4 27. Rc8+ Nf8 28. Rb8 a5 29. b3 Rd3 30. Rxb7 Rxb3 31. Bd5 Rb1+ 32. Kg2 Ne6 33. h5 Rd1 34. Bb3 Rd3 35. Bc4 Rc3 36. Bxe6 fxe6 37. hxg6 e5 38. Rb8+ Bf8 39. Kf3 Rc4 40. Ra8 a4 41. Bb6 a3 42. Ke3 a2 43. Rxa2 Rc8 44. Ke4 Re8 45. Ra6 Bb4 46. Ra7 Bc3 47. Bc5 Be1 48. f3 Bg3 49. Be7 Bf4 50. Rd7 Bg3 51. Kf5 Bf4 52. Rd8 Rxd8 53. Bxd8 Bh2 54. Be7 Bf4 55. Bd6 Bd2 56. Bxe5 Bc1 57. Bd6 Bd2 58. f4 Bc1 59. Be7 Bd2 60. Ke5 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "10"]
[White "Dlugy, Maxim"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "A55"]
[WhiteElo "2520"]
[BlackElo "2460"]
[PlyCount "77"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4 c6 6. Be2 Be7 7. 0-0 0-0 8. Be3 a6 9. d5 cxd5 10. cxd5 b5 11. Nd2 Nb6 12. a4 bxa4 13. Nxa4 Nxa4 14. Rxa4 Bd7 15. Ra2 Qb8 16. f3 Bb5 17. Bxb5 Qxb5 18. Qa4 Rfb8 19. Qxb5 Rxb5 20. Rfa1 Ne8 21. b3 a5 22. Ra4 f5 23. b4 fxe4 24. fxe4 Bd8 25. Nc4 Ra6 26. Kf2 Nf6 27. Kf3 Rb7 28. Bg5 Rf7 29. Ke2 h6 30. Bxf6 Rxf6 31. b5 Ra7 32. b6 Raf7 33. Rxa5 Rf2+ 34. Kd3 Bxb6 35. Nxb6 Rxg2 36. R5a2 Rf3+ 37. Kc4 Rg4 38. Re2 h5 39. Nc8 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "12"]
[White "Gurevich, Dmitry"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "E18"]
[WhiteElo "2545"]
[BlackElo "2460"]
[PlyCount "86"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Qb3 Be7 6. g3 0-0 7. Bg2 Nbd7 8. 0-0 b6 9. Bf4 Bb7 10. cxd5 exd5 11. Rfd1 Nh5 12. Be5 f6 13. Bf4 Nxf4 14. gxf4 f5 15. Rac1 Kh8 16. e3 Bd6 17. a3 h6 18. Ne2 g5 19. Ne5 Bxe5 20. dxe5 Qe7 21. Nd4 Nc5 22. Qc2 gxf4 23. exf4 Qf7 24. b4 Ne6 25. Nxe6 Qxe6 26. Rd3 Ba6 27. Rg3 Bc4 28. Bf1 b5 29. Qd1 Rg8 30. Bh3 Rxg3+ 31. hxg3 Qg6 32. Kh2 h5 33. Qd4 Qe6 34. Re1 Kh7 35. Bxf5+ Qxf5 36. e6 Qg4 37. e7 Re8 38. Qf6 Qg6 39. Qd4 Qg4 40. Re5 Bf1 41. Kg1 Qh3 42. Rxh5+ Qxh5 43. Qf6 Be2 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "2"]
[White "Kogan, Boris Markovich"]
[Black "Benjamin, Joel"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2460"]
[BlackElo "2575"]
[PlyCount "34"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b5 4. Bg2 Bb7 5. 0-0 h6 6. c3 Be7 7. Nbd2 0-0 8. Qc2 d6 9. a4 a6 10. axb5 axb5 11. Rxa8 Bxa8 12. e4 Nbd7 13. Re1 c5 14. dxc5 dxc5 15. b3 Bc6 16. c4 bxc4 17. Nxc4 Qa8 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "9"]
[White "Kogan, Boris Markovich"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2460"]
[BlackElo "2505"]
[PlyCount "123"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b5 4. Bg2 Bb7 5. 0-0 c5 6. c3 Na6 7. Bg5 Be7 8. Nbd2 0-0 9. a3 cxd4 10. cxd4 Qb6 11. b4 Rac8 12. Nb3 d6 13. Na5 Be4 14. Ne1 Bxg2 15. Nxg2 Nb8 16. Nf4 Rc3 17. e3 Rfc8 18. Ne2 R3c7 19. Qd3 Nd5 20. Bxe7 Nxe7 21. Rfc1 Nbc6 22. Nb3 a5 23. bxa5 Nxa5 24. Rxc7 Rxc7 25. Nxa5 Qxa5 26. Rb1 Rb7 27. Rb3 Rb6 28. Nc3 b4 29. Qb1 Nc6 30. Na2 g6 31. axb4 Qb5 32. Qb2 e5 33. dxe5 Nxe5 34. e4 Qc4 35. Re3 Ra6 36. Re2 Nf3+ 37. Kg2 Nd4 38. Rd2 Nb5 39. f3 Rc6 40. h4 h5 41. Qb1 Na3 42. Qb2 Nc2 43. Kf2 Kh7 44. Qb1 Na3 45. Qb2 Nc2 46. Qb1 Na3 47. Qf1 Qb3 48. Qe2 Rc2 49. Rxc2 Nxc2 50. Nc1 Qc3 51. b5 Qc5+ 52. Kg2 Ne3+ 53. Kf2 Nd1+ 54. Ke1 Nc3 55. Qd3 Nxb5 56. Ne2 Na3 57. Qc3 Nc4 58. Qd4 Ne5 59. Kf2 Qa3 60. Qc3 Qa7+ 61. Qd4 Qa3 62. Qc3 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "8"]
[White "Kogan, Boris Markovich"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2460"]
[BlackElo "2520"]
[PlyCount "42"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b5 4. Bg2 Bb7 5. 0-0 c5 6. c3 Be7 7. Bg5 Qb6 8. Nbd2 cxd4 9. cxd4 Nc6 10. e3 h6 11. Bxf6 Bxf6 12. Rc1 d6 13. Ne4 Be7 14. Nc3 d5 15. Ne1 0-0 16. Nd3 Rac8 17. Qg4 Bd6 18. Rfd1 Qa5 19. a3 b4 20. axb4 Nxb4 21. Ra1 Qd8 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "11"]
[White "Kogan, Boris Markovich"]
[Black "Fedorowicz, John P"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2460"]
[BlackElo "2520"]
[PlyCount "74"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 b6 4. dxc5 bxc5 5. e4 Bb7 6. e5 Nd5 7. Bd3 e6 8. 0-0 Be7 9. Qe2 f5 10. a3 0-0 11. c4 Nb6 12. Nc3 Nc6 13. b3 Qe8 14. Bb2 Qg6 15. Ne1 Nd4 16. Qd1 d6 17. exd6 Bxd6 18. Nb5 Nxb5 19. cxb5 Qh6 20. g3 e5 21. Qe2 e4 22. Bc2 f4 23. Bxe4 Rae8 24. f3 fxg3 25. hxg3 Bxe4 26. fxe4 Rxf1+ 27. Qxf1 Qe3+ 28. Qf2 Qxb3 29. Nf3 Rf8 30. Rf1 Nc4 31. Bc1 Ne5 32. Bf4 Nd3 33. Qe3 Bxf4 34. gxf4 Rxf4 35. e5 Qd5 36. Kg2 Re4 37. Qd2 Rxe5 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "6"]
[White "Kogan, Boris Markovich"]
[Black "Gulko, Boris F"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2460"]
[BlackElo "2565"]
[PlyCount "120"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Nf6 3. g3 c5 4. dxc5 Qa5+ 5. Nc3 Bg7 6. Nd2 Qxc5 7. Bg2 d6 8. Nb3 Qc7 9. Bg5 Nbd7 10. e4 h6 11. Bf4 Nb6 12. 0-0 Nc4 13. Qe2 a6 14. Nd1 Bg4 15. f3 Bd7 16. c3 Rc8 17. Re1 0-0 18. Bc1 e5 19. Ne3 Nb6 20. Bd2 Be6 21. Rad1 d5 22. exd5 Nbxd5 23. Nxd5 Nxd5 24. Qf2 Rfd8 25. Bc1 b5 26. Bf1 Kh7 27. Kh1 Rd6 28. Nd2 f5 29. a3 Rcd8 30. Be2 Bf8 31. Nf1 R6d7 32. Qg2 Nb6 33. Rxd7+ Rxd7 34. Rd1 Bb3 35. Rxd7+ Qxd7 36. Qf2 Nc4 37. Qe1 Nb6 38. Nd2 Bd5 39. Qd1 Qc6 40. Nf1 Bc5 41. Ne3 Be6 42. Kg2 Nd5 43. Nxd5 Bxd5 44. h4 e4 45. Bf4 Qe6 46. Kh2 Kg7 47. Kg2 exf3+ 48. Bxf3 Bxf3+ 49. Qxf3 Qe4 50. g4 h5 51. gxh5 gxh5 52. Kg3 Qxf3+ 53. Kxf3 Kf6 54. Ke2 Ke6 55. Kd3 Be7 56. Bg3 Kd5 57. Be1 a5 58. b3 a4 59. b4 f4 60. Bf2 Bd8 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "4"]
[White "Kogan, Boris Markovich"]
[Black "Kudrin, Sergey"]
[Result "1/2-1/2"]
[ECO "A31"]
[WhiteElo "2460"]
[BlackElo "2515"]
[PlyCount "46"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. f3 d6 7. e4 e6 8. Be2 g6 9. 0-0 Nbd7 10. Be3 Be7 11. Qd2 0-0 12. Rfd1 Qc7 13. Rac1 Rac8 14. Bf1 Qb8 15. Qf2 Rfe8 16. Kh1 Bd8 17. Rc2 Ne5 18. b3 h6 19. Rdc1 Nfd7 20. Qd2 Bf6 21. Nde2 Bd8 22. Ng3 Nf6 23. Qf2 Ba8 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "13"]
[White "Kogan, Boris Markovich"]
[Black "Whitehead, Jay E"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2460"]
[BlackElo "2415"]
[PlyCount "79"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 a5 5. Bg2 d6 6. Nc3 e5 7. Nf3 exd4 8. Nxd4 Nbd7 9. Nd5 Bxd2+ 10. Qxd2 c6 11. Qe3+ Kf8 12. Nxf6 Qxf6 13. 0-0 h5 14. Rad1 Ne5 15. b3 h4 16. Qf4 hxg3 17. hxg3 Qg6 18. f3 Qh6 19. Kf2 Qxf4 20. gxf4 Ng6 21. Kg3 a4 22. b4 Ke7 23. Rd3 a3 24. e4 Ra4 25. Nc2 Be6 26. Rc3 f5 27. Re1 Kd8 28. Nd4 Bd7 29. Rb1 Rf8 30. Bh3 fxe4 31. Bxd7 Kxd7 32. f5 Ne5 33. fxe4 g6 34. Kf4 Rh8 35. Nf3 gxf5 36. exf5 Nxf3 37. Rxf3 Rh2 38. Rg1 Rxa2 39. Rg7+ Ke8 40. f6 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "3"]
[White "Rohde, Michael A"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2550"]
[BlackElo "2460"]
[PlyCount "53"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 6. Ne5 c5 7. cxd5 exd5 8. Be2 Bd6 9. 0-0 0-0 10. Bf3 Be6 11. b3 cxd4 12. exd4 Qc7 13. Bb2 Bxe5 14. dxe5 Qxe5 15. Na4 Qd6 16. Bxf6 gxf6 17. Nc3 Rd8 18. Bxd5 Nc6 19. Be4 Qe5 20. Qe1 Rac8 21. f4 Qc5+ 22. Kh1 f5 23. Bxc6 Rxc6 24. Rf3 h6 25. Qh4 Qf8 26. h3 Kh7 27. Re1 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "5"]
[White "Seirawan, Yasser"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2600"]
[BlackElo "2460"]
[PlyCount "115"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 e6 6. e3 Nc6 7. Bd3 a6 8. Rc1 Be7 9. h3 Qa5 10. Nf3 b5 11. 0-0 Bb7 12. Ne5 Rc8 13. Bb1 0-0 14. Bg5 Qd8 15. f4 Ne8 16. Bxe7 Nxe7 17. Nd3 Bc6 18. Nc5 Ra8 19. Ne2 Nd6 20. g4 Bd7 21. Ng3 f5 22. Rc2 Kh8 23. Rg2 Ng8 24. Qf3 Nf6 25. Nh5 Nxh5 26. gxh5 Rf6 27. Kh2 Ra7 28. Rfg1 Be8 29. Bd3 a5 30. Rg5 Rh6 31. Qg3 Qe7 32. Be2 b4 33. Qh4 Qf8 34. R5g2 Bb5 35. Bf3 Rf6 36. b3 Rc7 37. Rc1 Rc8 38. Rgc2 Qe8 39. Qe1 Qd8 40. a3 bxa3 41. Ra2 Ne4 42. Rxa3 Nxc5 43. Rxc5 Rxc5 44. dxc5 a4 45. Qb4 Bc6 46. bxa4 Rf7 47. a5 Rb7 48. Qd4 h6 49. a6 Ra7 50. Qb2 Kh7 51. Qb6 Qd7 52. Ra5 Kg8 53. Kg3 Kf7 54. Qb8 Ra8 55. a7 Qc8 56. Qb6 Qd7 57. Ra6 Rc8 58. a8Q 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "1"]
[White "Wilder, Michael"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2505"]
[BlackElo "2460"]
[PlyCount "39"]
[EventDate "1987.11.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "12"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 d5 5. Qa4+ Nc6 6. a3 Be7 7. e3 0-0 8. Qc2 a5 9. b3 Bd7 10. Bb2 Na7 11. Bd3 h6 12. Rg1 c5 13. dxc5 Bxc5 14. g4 dxc4 15. Bxc4 Rc8 16. g5 hxg5 17. Nxg5 Re8 18. Nxf7 Qe7 19. Ne4 Kxf7 20. Nxf6 1-0

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "10"]
[White "Adianto, Utut"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2400"]
[BlackElo "2495"]
[PlyCount "97"]
[EventDate "1986.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. g3 Nf6 4. Bg2 Bf5 5. 0-0 e6 6. c4 Nbd7 7. b3 Be7 8. Nc3 h6 9. Bb2 0-0 10. e3 Ne4 11. Qe2 Qa5 12. Rfc1 Ba3 13. Bxa3 Qxa3 14. Ne1 Nxc3 15. Rxc3 Rfe8 16. Rac1 Nf6 17. h3 Ne4 18. Bxe4 dxe4 19. g4 Bh7 20. Rd1 Rad8 21. Rc2 Qd6 22. Rcd2 f5 23. f4 exf3 24. Nxf3 Qg3+ 25. Qg2 Qxg2+ 26. Kxg2 fxg4 27. hxg4 Be4 28. Kg3 Bxf3 29. Kxf3 Rf8+ 30. Ke4 Rf6 31. b4 Rg6 32. Rg2 Rg5 33. Rh1 Kf7 34. a4 a6 35. Rh5 Rg6 36. b5 axb5 37. cxb5 Ra8 38. bxc6 bxc6 39. a5 Ke7 40. Rc5 Kd6 41. Kd3 Rf6 42. Rb2 Ra6 43. Rb7 Rg6 44. e4 e5 45. Rxe5 Re6 46. Rxe6+ Kxe6 47. Rxg7 Kf6 48. Rc7 Kg5 49. e5 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Benjamin, Joel"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D60"]
[WhiteElo "2540"]
[BlackElo "2465"]
[PlyCount "75"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. Qb3 e6 6. Bg5 Nbd7 7. e3 Be7 8. Rd1 0-0 9. Bd3 b5 10. cxd5 cxd5 11. Bxf6 Nxf6 12. 0-0 Bb7 13. Rc1 Rc8 14. Qd1 Ne4 15. Ne2 Bd6 16. Bb1 Qe7 17. Ne5 f6 18. Nd3 Rc4 19. a3 a5 20. f3 Ng5 21. Qd2 b4 22. axb4 Bxb4 23. Nxb4 Qxb4 24. Qxb4 Rxb4 25. Nf4 Re8 26. Rf2 Ba6 27. h4 Nf7 28. Rc6 Bc8 29. Rfc2 Rb8 30. Rc7 Ba6 31. R2c6 Bc4 32. Bxh7+ Kxh7 33. Rxf7 Rxb2 34. Rcc7 Rg8 35. Nxe6 Re2 36. Rxf6 Bd3 37. e4 Kh8 38. Rf5 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Browne, Walter Shawn"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "D15"]
[WhiteElo "2485"]
[BlackElo "2465"]
[PlyCount "75"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. Qb3 e6 6. Bg5 dxc4 7. Qxc4 b5 8. Qd3 c5 9. Bxf6 gxf6 10. Rd1 Bb7 11. d5 b4 12. Na4 Qxd5 13. Qxd5 Bxd5 14. Nb6 Bxf3 15. gxf3 Ra7 16. f4 f5 17. Rg1 Rb7 18. Nc4 Rd7 19. e3 Be7 20. Bd3 Bf6 21. Ke2 Ke7 22. Nb6 Rc7 23. Nc4 Nd7 24. Rd2 Rb8 25. Bc2 Rcc8 26. Rd6 Nf8 27. Rxa6 Ra8 28. Rxa8 Rxa8 29. a4 bxa3 30. bxa3 Rb8 31. Rd1 h5 32. Rd6 Rb2 33. Kd1 Ra2 34. Rb6 Ng6 35. Rb7+ Kf8 36. Bb1 Ra1 37. Kc2 Ne7 38. Ra7 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "4"]
[White "Christiansen, Larry Mark"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D60"]
[WhiteElo "2555"]
[BlackElo "2495"]
[PlyCount "101"]
[EventDate "1986.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. Nf3 0-0 6. e3 c6 7. Bd3 Nbd7 8. 0-0 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. e4 Nxc3 12. bxc3 e5 13. Qd2 exd4 14. cxd4 Nb6 15. Bd3 Be6 16. Rfe1 Rad8 17. Qf4 Rfe8 18. a4 Bc4 19. Bc2 Qf6 20. Qg3 Qg6 21. Qh4 Qf6 22. Qh5 g6 23. Qh6 Nd7 24. a5 Nf8 25. Rab1 Qe7 26. h4 Be6 27. h5 Bg4 28. hxg6 hxg6 29. Ne5 Bc8 30. Bb3 Ne6 31. a6 Qg5 32. Qh2 bxa6 33. Nxc6 Nxd4 34. Bxf7+ Kxf7 35. Qh7+ Ke6 36. Nxd8+ Rxd8 37. Re3 Bd7 38. Rb7 Qh5 39. Qxh5 gxh5 40. Rxa7 Bb5 41. Rh3 Ne2+ 42. Kh2 Rh8 43. Rh4 Ke5 44. Re7+ Kf6 45. Rc7 Ke5 46. Rc5+ Kd4 47. Rd5+ Kc4 48. g4 Rf8 49. Rf5 Rxf5 50. exf5 hxg4 51. f6 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "De Firmian, Nick E"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2490"]
[BlackElo "2465"]
[PlyCount "64"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. 0-0 0-0 8. c4 c6 9. Qc2 Na6 10. a3 f5 11. c5 Be7 12. Ne5 Nc7 13. f3 Ne6 14. Be3 Bg5 15. f4 Bh6 16. Nc3 Bd7 17. b4 Be8 18. g4 g6 19. g5 Bg7 20. Ne2 Rc8 21. Qa4 a6 22. Rad1 Rc7 23. Qb3 h6 24. h4 hxg5 25. hxg5 N4xg5 26. fxg5 Bxe5 27. dxe5 f4 28. Bc1 Qxg5+ 29. Kf2 Qh4+ 30. Kg2 f3+ 31. Rxf3 Rxf3 32. Kxf3 Rf7+ 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "4"]
[White "Dehmelt, Karl"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "B81"]
[WhiteElo "2355"]
[BlackElo "2495"]
[PlyCount "47"]
[EventDate "1986.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4 h6 7. h4 Nc6 8. Nb3 a6 9. Bg2 h5 10. g5 Nd7 11. Qe2 Qc7 12. f4 g6 13. Be3 b5 14. Nd4 Bb7 15. Nxc6 Bxc6 16. Nd5 Bxd5 17. exd5 e5 18. f5 gxf5 19. 0-0 Rc8 20. Rxf5 Qxc2 21. Qf1 Qc4 22. Rxf7 Be7 23. Qf5 Qg4 24. Qg6 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Gurevich, Dmitry"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2505"]
[BlackElo "2465"]
[PlyCount "120"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. b3 Bd6 6. Bb2 0-0 7. Be2 Qe7 8. 0-0 Nbd7 9. Qc2 a6 10. d4 e5 11. cxd5 cxd5 12. dxe5 Nxe5 13. Rad1 Be6 14. Nxe5 Bxe5 15. f4 Bc7 16. Bf3 Qc5 17. Qf2 Rad8 18. Na4 Qe7 19. Bd4 Ng4 20. Qb2 f5 21. Bxg4 fxg4 22. Bc5 Bd6 23. Qd4 Bxc5 24. Qxc5 Qf7 25. f5 Bd7 26. Nb6 Bc6 27. Rd4 h5 28. a4 Kh8 29. Rfd1 Rde8 30. Nxd5 Re5 31. e4 Rfe8 32. Qc2 Bxd5 33. Rxd5 Rxe4 34. Rd8 Qe7 35. Rxe8+ Qxe8 36. Qc3 Re3 37. Qa5 Kh7 38. f6 gxf6 39. Qf5+ Kg7 40. Rf1 Qg6 41. Qc8 Qe4 42. Qd7+ Kg6 43. Qc8 Qd5 44. Qc2+ Kg7 45. Rxf6 Kxf6 46. Qf2+ Rf3 47. gxf3 gxf3 48. Qe3 Qg5+ 49. Kf2 Qg2+ 50. Ke1 Qh1+ 51. Kd2 Qxh2+ 52. Kc1 Kf5 53. Qd3+ Kg5 54. Qd5+ Kg4 55. Qe6+ Kg3 56. Qg6+ Kf2 57. Qb6+ Kg2 58. Qxb7 Qf4+ 59. Kd1 h4 60. Qxa6 f2 0-1

[Event "Holon op"]
[Site "Holon"]
[Date "1986.??.??"]
[Round "?"]
[White "Gutman, Lev"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2445"]
[BlackElo "2495"]
[PlyCount "35"]
[EventDate "1986.12.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ISR"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. 0-0 Be7 5. b3 0-0 6. Bb2 c5 7. c4 Nbd7 8. cxd5 Nxd5 9. d4 b6 10. e4 N5f6 11. d5 exd5 12. e5 Ne8 13. Qxd5 Nc7 14. Qd2 Bb7 15. Rd1 Bc6 16. Qc2 Ne6 17. Ng5 Bxg5 18. Bxc6 1-0

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "2"]
[White "Johannesson, Larus"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "2250"]
[BlackElo "2495"]
[PlyCount "39"]
[EventDate "1986.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 d4 3. g3 Nc6 4. d3 e5 5. Bg2 Nf6 6. 0-0 Nd7 7. e3 Be7 8. exd4 exd4 9. Re1 0-0 10. Bf4 Nc5 11. Ne5 Nxe5 12. Rxe5 c6 13. Qf3 Bd6 14. Rh5 g6 15. Bxd6 Qxd6 16. Rh4 g5 17. Rh5 Qg6 18. Qe2 Bf5 19. g4 Bxd3 20. Qe5 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kavalek, Lubomir"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D53"]
[WhiteElo "2555"]
[BlackElo "2465"]
[PlyCount "105"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Be7 6. Rc1 c6 7. Nf3 0-0 8. Bd3 b6 9. 0-0 Bb7 10. Qe2 c5 11. Rfd1 cxd4 12. Nxd4 Ne5 13. Bxf6 Bxf6 14. cxd5 Nxd3 15. Qxd3 Bxd5 16. Qb1 Rc8 17. Nxd5 exd5 18. Ne2 Rxc1 19. Qxc1 Be5 20. b3 Qa8 21. Rd3 Rd8 22. g3 g6 23. Qd2 a5 24. a4 h5 25. h4 Qc6 26. Nc3 Bxc3 27. Rxc3 Qe6 28. Qd4 Kh7 29. Rc7 Rb8 30. Qf4 Rf8 31. Rb7 d4 32. Qxd4 Qxb3 33. Rxb6 Qc2 34. Rb5 Qc7 35. Qc5 Qxc5 36. Rxc5 Ra8 37. Kf1 Kg7 38. Ke2 Kf6 39. e4 Ke6 40. Rd5 Ra7 41. Ke3 Ra6 42. Kf4 Kf6 43. Rb5 Ra7 44. f3 Ra6 45. g4 hxg4 46. Kxg4 Ra8 47. h5 gxh5+ 48. Rxh5 Ke6 49. Rd5 Ra6 50. Kf4 Ra8 51. Ke3 Ra6 52. Kd4 Ra8 53. Kc4 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Alburt, Lev O"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2465"]
[BlackElo "2525"]
[PlyCount "55"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 d5 5. cxd5 Nxd5 6. Bg2 Be7 7. 0-0 0-0 8. Nxd5 exd5 9. d4 Nc6 10. dxc5 Bxc5 11. Bg5 f6 12. Bd2 Bf5 13. e3 Be4 14. Bc3 Qb6 15. Rc1 Rfe8 16. a3 a5 17. Qa4 Nb4 18. Bd4 Bxd4 19. Nxd4 Nd3 20. Bxe4 dxe4 21. Qc4+ Kh8 22. Qc7 Qxc7 23. Rxc7 b6 24. b3 Rac8 25. Rb7 Rb8 26. Rc7 Rbc8 27. Rb7 Rb8 28. Rc7 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Christiansen, Larry Mark"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2465"]
[BlackElo "2560"]
[PlyCount "73"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Bg7 5. d4 Nf6 6. d5 Nb4 7. e4 0-0 8. a3 Na6 9. Bd3 d6 10. 0-0 e6 11. Nd2 Re8 12. h3 Nc7 13. a4 Na6 14. Bb1 Nb4 15. f4 exd5 16. exd5 Ng4 17. Nf3 Ne3 18. Bxe3 Rxe3 19. Qd2 Qe7 20. Kf2 Rxf3+ 21. Kxf3 Bd7 22. Kg3 Re8 23. Kh2 Bd4 24. Be4 f5 25. Bc2 Be3 26. Qd1 Qf6 27. Bb3 h5 28. a5 Re7 29. Rf3 Be8 30. Qf1 g5 31. fxg5 Qe5+ 32. Kh1 f4 33. g3 fxg3 34. Rf8+ Kh7 35. Rxe8 Rxe8 36. Qf7+ Kh8 37. g6 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Dlugy, Maxim"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2465"]
[BlackElo "2500"]
[PlyCount "71"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. a3 e6 6. b4 cxb4 7. axb4 d5 8. cxd5 exd5 9. b5 Nce7 10. d4 Nh6 11. e3 0-0 12. Ba3 Nhf5 13. Nge2 Be6 14. 0-0 Re8 15. Nf4 Qd7 16. Qb3 Red8 17. Ra2 a6 18. Bc5 g5 19. Nxe6 fxe6 20. Rfa1 Kh8 21. bxa6 bxa6 22. Rxa6 Rxa6 23. Rxa6 e5 24. Ra7 Qe6 25. Bxe7 Nxe7 26. Qb7 exd4 27. Nxd5 Bf8 28. e4 d3 29. Nxe7 d2 30. Bf3 d1Q+ 31. Bxd1 Rxd1+ 32. Kg2 Rd4 33. Ra8 Qxe4+ 34. Qxe4 Rxe4 35. Rxf8+ Kg7 36. Rg8+ 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Fedorowicz, John P"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2465"]
[BlackElo "2525"]
[PlyCount "116"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. e3 b6 4. Bd3 Bb7 5. 0-0 g6 6. Nbd2 Bg7 7. c3 0-0 8. b4 d6 9. bxc5 dxc5 10. Bb2 Nc6 11. Qe2 Qc7 12. e4 cxd4 13. cxd4 Nh5 14. g3 Rad8 15. Qe3 Qd7 16. Nb3 Nb4 17. Bb1 Rc8 18. Qd2 a5 19. a3 Na6 20. d5 Nf6 21. Bd3 a4 22. Nbd4 Nc5 23. Rfe1 Nxd3 24. Qxd3 Ng4 25. Qe2 e5 26. Nc2 f5 27. Nb4 fxe4 28. Qxe4 Qf5 29. Qxf5 Rxf5 30. h3 Rxf3 31. hxg4 Bf8 32. Bxe5 Bc5 33. Ra2 Rxa3 34. Rxa3 Bxb4 35. Raa1 Bxe1 36. Rxe1 Bxd5 37. f4 Be6 38. Bd4 Rc6 39. Rb1 Bb3 40. Kf2 b5 41. f5 Bc4 42. Rc1 gxf5 43. gxf5 Kf7 44. Rh1 h6 45. g4 a3 46. g5 hxg5 47. Rh7+ Ke8 48. Ra7 a2 49. Ke3 b4 50. Rb7 b3 51. Rb8+ Kd7 52. Rb7+ Rc7 53. Rb6 Rc6 54. Rb7+ Kc8 55. Rb4 Bd5 56. Bg7 Rc1 57. Ra4 Rf1 58. f6 b2 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "3"]
[White "Kogan, Boris Markovich"]
[Black "Kristjansson, Olafur"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2495"]
[PlyCount "91"]
[EventDate "1986.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. b3 Nbd7 7. Bb2 c6 8. c4 Qa5 9. Nc3 e5 10. e4 Re8 11. a3 Nf8 12. d5 c5 13. Ne1 Qd8 14. Nd3 Ng4 15. Qe2 f5 16. f3 Nh6 17. Rae1 a6 18. b4 b6 19. Qc2 Nd7 20. Kh1 Nf6 21. Bc1 Nh5 22. bxc5 bxc5 23. f4 Ng4 24. exf5 Bxf5 25. Be4 exf4 26. Bxf5 Rxe1 27. Nxe1 gxf5 28. Qxf5 Nxh2 29. Kxh2 Nxg3 30. Qe6+ Kh8 31. Rf3 Bxc3 32. Ng2 Bd4 33. Bxf4 Nh5 34. Bxd6 Qg5 35. Rf5 Qc1 36. Be5+ Ng7 37. Bxd4 cxd4 38. Qf6 Rg8 39. Qxd4 Qh6+ 40. Kg1 Rb8 41. Rf1 Kg8 42. d6 Qe6 43. c5 Rd8 44. Re1 Qh6 45. Qc4+ Kh8 46. Qh4 1-0

[Event "New York op"]
[Site "New York"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Mateo, Ramon"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2495"]
[BlackElo "2395"]
[PlyCount "85"]
[EventDate "1986.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 c5 5. dxc5 0-0 6. Bg2 Bxc5 7. Ngf3 b6 8. 0-0 Bb7 9. b3 e5 10. Bb2 d6 11. a3 a5 12. Bc3 Nc6 13. Qc2 Qe7 14. Qb2 Bb4 15. Nb1 Bc5 16. e3 Rfe8 17. Rd1 e4 18. Ne1 Ng4 19. h3 Nxe3 20. fxe3 Bxe3+ 21. Kh2 f5 22. Nd2 Ne5 23. Nf1 Bg5 24. Bxe5 dxe5 25. Qe2 Rf8 26. Nc2 h5 27. Nfe3 f4 28. Nd5 Bxd5 29. Rxd5 f3 30. Qxe4 fxg2 31. Rxe5 Qf6 32. Qd5+ Kh7 33. Rxg5 Rad8 34. Qe4+ Kg8 35. Rd5 h4 36. Qxg2 hxg3+ 37. Qxg3 Qf2+ 38. Qg2 Rde8 39. Rd2 Qf4+ 40. Kh1 Rf7 41. Rg1 Re6 42. Rd8+ Kh7 43. Rf8 1-0

[Event "Nordic-USA"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "1"]
[White "Kogan, Boris Markovich"]
[Black "Schussler, Harry"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "2495"]
[BlackElo "2455"]
[PlyCount "116"]
[EventDate "1986.??.??"]
[EventType "team"]
[EventRounds "2"]
[EventCountry "ISL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 d5 5. Nbd2 Nbd7 6. Bd3 Be7 7. 0-0 Qc7 8. c4 dxc4 9. Nxc4 0-0 10. e4 h6 11. Bh4 cxd4 12. e5 Nd5 13. Bg3 Nc5 14. Rc1 Nxd3 15. Qxd3 Nb4 16. Qb1 Nc6 17. Qe4 Bd7 18. Nxd4 Nxd4 19. Qxd4 Bc6 20. Bh4 Bxh4 21. Qxh4 Bd5 22. Nd6 Qb6 23. b3 f6 24. Qg3 fxe5 25. Qxe5 Rad8 26. Nc4 Bxc4 27. bxc4 Rd2 28. c5 Qc6 29. a4 Rd5 30. Qe3 Rff5 31. Qg3 Kh7 32. Qb8 a6 33. h3 Rxc5 34. Rb1 Rf7 35. f3 Rg5 36. Kh1 Qc2 37. Qh2 Qxa4 38. Rfe1 Qc6 39. Re4 Rd5 40. Qg1 b5 41. Qe3 Rf6 42. Re1 a5 43. Qa7 b4 44. Rg4 Qd7 45. Qf2 b3 46. Qe2 Rff5 47. Qb2 a4 48. Qa3 Rfe5 49. Rxe5 Rxe5 50. Qb2 Rd5 51. Re4 Qc6 52. Kh2 Rc5 53. Qa3 Rc4 54. Re1 Qc5 55. Qb2 Rc2 56. Qb1 Qd5 57. Re3 Qd2 58. Qg1 Rc1 0-1

[Event "Reykjavik op"]
[Site "Reykjavik"]
[Date "1986.??.??"]
[Round "5"]
[White "Kogan, Boris Markovich"]
[Black "Seirawan, Yasser"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2495"]
[BlackElo "2605"]
[PlyCount "90"]
[EventDate "1986.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 b6 3. e3 Nf6 4. Nc3 g6 5. d4 Bg7 6. Be2 0-0 7. 0-0 d6 8. b3 Bb7 9. Bb2 e6 10. Qc2 Nc6 11. Rad1 Qe7 12. Qb1 Rfd8 13. Rfe1 a6 14. d5 Nb8 15. e4 e5 16. g3 Bc8 17. Nh4 Bh3 18. Bf1 Bxf1 19. Rxf1 Nbd7 20. Ng2 Rdb8 21. a4 Ne8 22. Qd3 Nc7 23. Ra1 Rb7 24. f4 exf4 25. gxf4 Bd4+ 26. Kh1 Rab8 27. b4 Ne8 28. b5 axb5 29. axb5 Nef6 30. Rae1 Re8 31. Re2 Ra7 32. Ne1 Nh5 33. Ng2 Qf8 34. Rfe1 Qg7 35. Qh3 Qf6 36. e5 dxe5 37. Ne4 Qe7 38. Bxd4 cxd4 39. fxe5 Nxe5 40. Nf2 f6 41. Qh4 Qc5 42. Ne4 Qf8 43. Nxf6+ Qxf6 44. Qxd4 Rf7 45. Nh4 Qg5 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[ECO "D32"]
[WhiteElo "2465"]
[BlackElo "2580"]
[PlyCount "34"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c5 3. e3 Nf6 4. dxc5 e6 5. c4 Bxc5 6. Nc3 a6 7. cxd5 exd5 8. Be2 Nc6 9. 0-0 0-0 10. b3 Qd6 11. Bb2 Rd8 12. Rc1 Ba7 13. Rc2 h6 14. Rd2 Be6 15. Qa1 Qf8 16. Rfd1 Rac8 17. Bf1 Ne4 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Shirazi, Kamran"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2465"]
[BlackElo "2450"]
[PlyCount "92"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. Nf3 g6 5. g3 Ne4 6. Nxe4 Bxe4 7. Bg2 Bg7 8. 0-0 0-0 9. Be3 c5 10. Nh4 Bxg2 11. Nxg2 Qb6 12. dxc5 dxc5 13. Rb1 Rd8 14. Qc1 Nc6 15. Nf4 Qa5 16. a3 e6 17. b4 cxb4 18. axb4 Qa4 19. Nd3 b6 20. c5 b5 21. Bf4 e5 22. Bg5 Rd4 23. Bh6 Qa2 24. Bxg7 Kxg7 25. Rb2 Qd5 26. Qb1 h5 27. h4 g5 28. Ne1 e4 29. Ng2 Rd8 30. Qc1 f6 31. Qc3 Kg6 32. hxg5 fxg5 33. Ne3 Qe6 34. Kg2 h4 35. Rh1 hxg3 36. fxg3 Ne5 37. Rc2 Nc4 38. Nxc4 Rxc4 39. Qb2 e3 40. Rhc1 Qe4+ 41. Kg1 Rcd4 42. Qa1 Rh8 43. Qa6+ Kf5 44. Rf1+ Kg4 45. Rf3 Rd1+ 46. Kg2 Rdh1 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Wilder, Michael"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2465"]
[BlackElo "2465"]
[PlyCount "52"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. d5 e6 7. e4 exd5 8. exd5 d6 9. Qe2+ Be7 10. Bxd6 Nxd5 11. Qe4 Nc6 12. Qxd5 Be6 13. Qxc5 Qxc5 14. Bxc5 Bxc5 15. Nd2 0-0-0 16. Ne4 Be3 17. g4 Ne5 18. Be2 h5 19. g5 f5 20. gxf6 gxf6 21. Nxf6 Rdf8 22. Ne4 Rhg8 23. Nf2 Rg2 24. Nfh3 Bxh3 25. Bf1 Rxg1 26. Rxg1 Nxf3+ 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Kudrin, Sergey"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2495"]
[BlackElo "2465"]
[PlyCount "119"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qc5 7. 0-0 Nc6 8. Qe2 Qb6 9. Nb3 Nge7 10. a4 a6 11. Rd1 Ng6 12. Nbxd4 Nxd4 13. Rxd4 Be7 14. c3 0-0 15. Be3 Qc7 16. Bb3 Bd7 17. Rc4 Qa5 18. Rd1 Bc6 19. Bc2 Qh5 20. Nd4 Qxe2 21. Nxe2 e5 22. Bb6 f5 23. f3 Rae8 24. Kf2 Bg5 25. Bc5 Rf6 26. Be3 h6 27. Rc5 Nh4 28. Bxg5 hxg5 29. g3 Ng6 30. a5 Kf8 31. c4 f4 32. Be4 fxg3+ 33. Nxg3 Nh4 34. Rd3 g4 35. Bxc6 bxc6 36. Ne4 Rf4 37. Rxc6 Nxf3 38. Ke3 Nxh2 39. Rxa6 Nf1+ 40. Ke2 Rxe4+ 41. Kxf1 Rxc4 42. Rb6 Rc2 43. a6 Ra8 44. Re3 Kf7 45. Rxe5 Rd8 46. a7 g3 47. Rf5+ Ke7 48. Kg1 g2 49. Rf2 Rxf2 50. Kxf2 Rd1 51. Kxg2 Ra1 52. Rb7+ Kd6 53. Rxg7 Kc6 54. Kf3 Kb6 55. Ke4 Rxa7 56. Rxa7 Kxa7 57. Kd5 Kb6 58. Kc4 Kc6 59. Kb4 Kb6 60. b3 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Lein, Anatoly"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D67"]
[WhiteElo "2500"]
[BlackElo "2465"]
[PlyCount "21"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. 0-0 1/2-1/2

[Event "New York op"]
[Site "New York"]
[Date "1986.??.??"]
[Round "?"]
[White "Ramayrat, Cris"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2430"]
[BlackElo "2495"]
[PlyCount "77"]
[EventDate "1986.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 a6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 c5 9. e4 cxd4 10. Nxd4 Nbd7 11. 0-0 Bb7 12. Re1 Ne5 13. Bf1 Bc5 14. Nb3 Qxd1 15. Nxd1 Bb4 16. Bd2 Bxd2 17. Nxd2 Rc8 18. Ne3 Rd8 19. Nb3 Nxe4 20. a4 Nd3 21. Na5 Ba8 22. Re2 0-0 23. axb5 axb5 24. f3 Nec5 25. Rd2 Rd7 26. Ra3 Rfd8 27. Rc3 b4 28. Rc4 Kf8 29. Rdc2 Na6 30. Nc6 Bxc6 31. Rxc6 b3 32. R2c3 Nab4 33. Rb6 Nd5 34. Nxd5 Rxd5 35. Rbxb3 Nc5 36. Ra3 Rb8 37. Ra5 Nd7 38. Rxd5 exd5 39. Rd3 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Rohde, Michael A"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "C75"]
[WhiteElo "2500"]
[BlackElo "2465"]
[PlyCount "63"]
[EventDate "1986.10.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "CBM 003"]
[Source "ChessBase"]
[SourceDate "1988.04.01"]
[SourceVersion "1"]
[SourceVersionDate "1988.04.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. 0-0 Nge7 7. d4 Ng6 8. Nbd2 Be7 9. Re1 0-0 10. Nf1 Bg4 11. d5 Nh4 12. Ne3 Bxf3 13. gxf3 Na7 14. Kh1 Bg5 15. Rg1 Bf4 16. Ng2 Nxg2 17. Rxg2 Bxc1 18. Qxc1 Qh4 19. Qe3 f5 20. Rag1 Rf7 21. exf5 Nc8 22. f4 Ne7 23. Bd7 Nxd5 24. Be6 Nxe3 25. Rxg7+ Kh8 26. Bxf7 h5 27. fxe3 Qf2 28. Bd5 e4 29. Bxe4 Qxe3 30. Bxb7 Rf8 31. R7g5 Qh3 32. f6 1-0

[Event "Philadelphia op"]
[Site "Philadelphia"]
[Date "1986.??.??"]
[Round "?"]
[White "Seirawan, Yasser"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "E07"]
[WhiteElo "2605"]
[BlackElo "2495"]
[PlyCount "77"]
[EventDate "1986.07.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 e6 5. g3 Nbd7 6. Bg2 Be7 7. 0-0 0-0 8. Nc3 b6 9. Rd1 Bb7 10. cxd5 cxd5 11. Bf4 Nh5 12. Bd2 Nhf6 13. a4 a6 14. Rac1 Rc8 15. e3 Ne4 16. Be1 Nd6 17. Bf1 Nc4 18. Qa2 Rc7 19. Ne2 Qb8 20. b3 Na5 21. Rxc7 Qxc7 22. Rc1 Qb8 23. Nf4 Rc8 24. Rxc8+ Qxc8 25. Qb1 h6 26. Bh3 Nf8 27. Nd3 Nc6 28. b4 Nb8 29. Bf1 Bc6 30. b5 axb5 31. axb5 Be8 32. Bb4 Ng6 33. Nde5 Nxe5 34. Nxe5 Bxb4 35. Qxb4 f6 36. Nd3 Qc7 37. Bh3 Kf7 38. Nf4 Bd7 39. Bxe6+ 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "4"]
[White "Fedorowicz, John P"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2520"]
[BlackElo "2500"]
[PlyCount "69"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. 0-0 Nc6 8. c4 Nf6 9. h3 0-0 10. Nc3 dxc4 11. Bxc4 Na5 12. Bd3 Be6 13. Re1 c5 14. Be3 c4 15. Bc2 Nd5 16. Bd2 Nc6 17. Qb1 Nf6 18. Ng5 h6 19. Rxe6 hxg5 20. Re1 g4 21. hxg4 Qxd4 22. Ne4 Nxg4 23. Bc3 Qd5 24. Qd1 Qh5 25. Ng3 Qg5 26. Re4 Nge5 27. Qe2 Bd6 28. Rd1 Bc7 29. Bd2 Qe7 30. Qh5 g6 31. Qh6 f5 32. Rh4 Qg7 33. Qxg7+ Kxg7 34. Bc3 Ba5 35. Rxc4 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "11"]
[White "Gurevich, Dmitry"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "2490"]
[BlackElo "2500"]
[PlyCount "55"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 d5 6. a3 Bxc3+ 7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 Nc6 10. Be3 0-0 11. 0-0 b6 12. Qd3 Bb7 13. Rad1 h6 14. Ba2 Ne7 15. f3 Nfd5 16. Bf2 Nf5 17. Ne4 a5 18. Rfe1 Ba6 19. Qd2 Rc8 20. Rc1 Qd7 21. Rxc8 Rxc8 22. Rc1 Rxc1+ 23. Qxc1 Qb5 24. h4 Qe2 25. Bxd5 exd5 26. Ng3 Nxg3 27. Bxg3 Bc4 28. Kh2 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "8"]
[White "Kavalek, Lubomir"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D48"]
[WhiteElo "2555"]
[BlackElo "2500"]
[PlyCount "23"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 e6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 c5 9. a4 b4 10. Ne4 Nbd7 11. 0-0 Bb7 12. Nxf6+ 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "1"]
[White "Kogan, Boris Markovich"]
[Black "Alburt, Lev O"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2500"]
[BlackElo "2535"]
[PlyCount "110"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. Bg5 Ne4 5. Bh4 Qa5+ 6. c3 b4 7. Qc2 f5 8. Nfd2 bxc3 9. bxc3 Bb7 10. Nxe4 fxe4 11. Qxe4 e6 12. Qc2 Bxd5 13. e4 Bc6 14. a4 Bd6 15. Bg3 Qc7 16. Nd2 0-0 17. Bd3 Bf4 18. 0-0 Bb7 19. a5 Ba6 20. Bxa6 Nxa6 21. Qd3 Qc6 22. Bxf4 Rxf4 23. g3 Rff8 24. e5 c4 25. Qd4 Nc7 26. Qxc4 Qxc4 27. Nxc4 Nd5 28. Nd6 Nxc3 29. Ra3 Ne2+ 30. Kg2 Nd4 31. Rd1 Nc6 32. Nc4 Nb8 33. Nd6 a6 34. Rc3 Nc6 35. Rc5 Rab8 36. Rd2 Rb1 37. Ne4 Rb7 38. f4 h6 39. h4 Rfb8 40. Kh3 Kf8 41. Rc1 Ke7 42. Nc5 Ra7 43. Rd6 Nxa5 44. Rxa6 Rxa6 45. Nxa6 Rb6 46. Nc5 Rc6 47. Kg4 Kf7 48. h5 Nb7 49. Nd3 Rxc1 50. Nxc1 d6 51. Nd3 dxe5 52. fxe5 Nd8 53. Kf4 Ke7 54. Ke4 Nf7 55. Nc5 Nd8 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "7"]
[White "Kogan, Boris Markovich"]
[Black "Benjamin, Joel"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2500"]
[BlackElo "2540"]
[PlyCount "28"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 Bg4 4. Bg2 c6 5. 0-0 Nbd7 6. c4 e5 7. Nc3 Be7 8. h3 Bxf3 9. Bxf3 0-0 10. b3 Re8 11. Bb2 Qc7 12. Bg2 a6 13. Rc1 Rac8 14. d5 c5 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "3"]
[White "Kogan, Boris Markovich"]
[Black "Browne, Walter Shawn"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2500"]
[BlackElo "2530"]
[PlyCount "60"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. d5 Qb6 5. Qc1 f5 6. g3 Bg7 7. c3 d6 8. Nd2 Qc7 9. Qc2 e6 10. Bh3 0-0 11. Ngf3 Nd7 12. 0-0 Nf6 13. c4 Bd7 14. Rfe1 Rae8 15. Rad1 Kh8 16. Ng5 Qd8 17. f4 h6 18. dxe6 fxe6 19. Ngf3 Bc6 20. Nh4 Kg8 21. Bg2 Bxg2 22. Kxg2 Qb6 23. b3 Qc6+ 24. e4 fxe4 25. Nxe4 Rd8 26. Nf3 Nxe4 27. Rxe4 d5 28. Re2 e5 29. cxd5 Rxd5 30. Qc4 Rfd8 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "12"]
[White "Kogan, Boris Markovich"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2500"]
[BlackElo "2560"]
[PlyCount "159"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 e6 2. g3 c5 3. Nf3 b6 4. d5 exd5 5. Qxd5 Nc6 6. Ne5 Qf6 7. Nxc6 dxc6 8. Qe4+ Ne7 9. Bg2 g6 10. 0-0 Bg7 11. c3 0-0 12. Nd2 Bf5 13. Qa4 Qe6 14. Nf3 h6 15. Re1 a5 16. e4 Bg4 17. Bf4 g5 18. Be3 Ng6 19. Qb3 a4 20. Qc2 a3 21. Nd2 axb2 22. Qxb2 Ne5 23. Qc2 Ra3 24. Rec1 Rfa8 25. Nb3 R3a4 26. Rcb1 Rc4 27. Kh1 Nf3 28. h3 Bh5 29. Qe2 Rxc3 30. Bxf3 Bxf3+ 31. Qxf3 Rxb3 32. Rxb3 Bxa1 33. Rxb6 Qxh3+ 34. Kg1 Rxa2 35. Bxc5 Be5 36. Rb1 Qd7 37. Kg2 Rd2 38. Rc1 Rd3 39. Qf5 Qxf5 40. exf5 Rc3 41. Rxc3 Bxc3 42. g4 Bg7 43. Kf3 Bf8 44. Bd4 Kh7 45. Be5 Bc5 46. Kg3 Be7 47. f4 c5 48. fxg5 Bxg5 49. Kf3 Bd2 50. Ke2 Bb4 51. Kd3 h5 52. gxh5 Kh6 53. Kc4 Kxh5 54. Kd5 Kg4 55. f6 Kg5 56. Bb2 Kf5 57. Ba1 Bd2 58. Kxc5 Bg5 59. Bc3 Bxf6 60. Be1 Ke4 61. Kd6 Bg5 62. Bf2 f5 63. Ke6 f4 64. Be1 f3 65. Bf2 Be3 66. Be1 Bg1 67. Bg3 Bh2 68. Bf2 Kf4 69. Bc5 Kg3 70. Kf5 Kh3 71. Bd4 Bg3 72. Be3 Bd6 73. Bd4 Kg3 74. Bb6 Bb4 75. Bd4 Be1 76. Bc5 Bf2 77. Bd6+ Kh3 78. Kf4 Kg2 79. Kg4 Be3 80. Bg3 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "5"]
[White "Kogan, Boris Markovich"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2500"]
[BlackElo "2540"]
[PlyCount "22"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 c5 2. g3 b6 3. Bg2 Bb7 4. 0-0 Nf6 5. c4 Nc6 6. b3 e6 7. Bb2 Be7 8. e3 0-0 9. Nc3 Rc8 10. Rc1 d5 11. d3 dxc4 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "9"]
[White "Kogan, Boris Markovich"]
[Black "Dlugy, Maxim"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2500"]
[BlackElo "2485"]
[PlyCount "25"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 c5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nc7 6. Qb3 Nc6 7. Bxc6+ bxc6 8. Qa4 Qd7 9. Nf3 f6 10. d3 e5 11. 0-0 Nb5 12. Be3 Nd4 13. Bxd4 1/2-1/2

[Event "USA"]
[Site "USA"]
[Date "1985.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2500"]
[BlackElo "2560"]
[PlyCount "68"]
[EventDate "1985.??.??"]
[EventType "game"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. 0-0 e6 5. d3 Bxf3 6. Bxf3 Nf6 7. Nd2 Nbd7 8. e4 Bc5 9. Qe2 dxe4 10. dxe4 Qc7 11. Nc4 b5 12. Ne3 0-0 13. Bd2 Nb6 14. Bg2 Rfd8 15. Ba5 Qe5 16. Bc3 Bd4 17. f4 Qc5 18. Bxd4 Rxd4 19. c3 Rd7 20. Kh1 Rad8 21. Rad1 h6 22. Rxd7 Rxd7 23. e5 Nfd5 24. Nxd5 cxd5 25. f5 Nc4 26. fxe6 fxe6 27. Bh3 Re7 28. b3 Qe3 29. Qxe3 Nxe3 30. Rf3 Nc2 31. Kg1 Ne1 32. Re3 Nc2 33. Rf3 Ne1 34. Re3 Nc2 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "13"]
[White "Kudrin, Sergey"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2485"]
[BlackElo "2500"]
[PlyCount "121"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. c3 Nf6 7. Re1 g6 8. d4 Qe7 9. Nbd2 Bg7 10. Nf1 0-0 11. h3 h6 12. Bc2 Rae8 13. Ng3 Kh8 14. Be3 Ng8 15. Qd2 Rd8 16. b4 Bc8 17. Rad1 b6 18. Qc1 Bb7 19. Qb1 Ra8 20. a3 a5 21. b5 Nb8 22. Nh2 Bf6 23. Rf1 Bg5 24. f4 exf4 25. Bxf4 Nd7 26. Qc1 Rae8 27. Nf3 Bxf4 28. Qxf4 Qf6 29. Qd2 Qe6 30. Rde1 Qa2 31. h4 h5 32. Qd3 Qe6 33. Ng5 Qg4 34. Nxf7+ Kg7 35. Ng5 Qxh4 36. Rxf8 Nxf8 37. Nh3 Nf6 38. Nf2 Ng4 39. Nxg4 Qxg4 40. Bd1 Qg5 41. Re3 h4 42. Nf1 Ne6 43. d5 Nc5 44. Qd4+ Qe5 45. Bf3 g5 46. Bh5 Re7 47. Bg4 Kf8 48. Bf5 Ke8 49. Nh2 Nd7 50. Ng4 Qg7 51. Bxd7+ Kxd7 52. e5 dxe5 53. Nxe5+ Kd6 54. Nc4+ Kd7 55. Ne5+ Kd6 56. Nc4+ Kd7 57. Re5 Rxe5 58. Nxe5+ Kc8 59. d6 cxd6 60. Qxd6 Qc7 61. Qe6+ 1/2-1/2

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "6"]
[White "McCambridge, Vincent"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "D60"]
[WhiteElo "2465"]
[BlackElo "2500"]
[PlyCount "78"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c6 3. c4 e6 4. Nc3 Nf6 5. Bg5 Nbd7 6. e3 Be7 7. Bd3 dxc4 8. Bxc4 Nd5 9. Bxe7 Qxe7 10. 0-0 0-0 11. Ne4 Rd8 12. Qc2 b6 13. Neg5 Nf8 14. e4 Nc7 15. Rad1 Bb7 16. Bb3 Rac8 17. Rfe1 Ne8 18. h4 h6 19. Nh3 c5 20. d5 exd5 21. exd5 Qf6 22. Re4 Qd6 23. Ne5 Nf6 24. Re2 b5 25. Qf5 c4 26. Bc2 Rc5 27. b4 Rxd5 28. Rxd5 Bxd5 29. Nf4 Be6 30. Nxe6 Nxe6 31. Nf3 Qxb4 32. Re5 a6 33. g4 Nf8 34. g5 hxg5 35. hxg5 Nh5 36. g6 fxg6 37. Qg4 Nf6 38. Qh4 Qb2 39. Be4 c3 0-1

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "10"]
[White "Shirazi, Kamran"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "C43"]
[BlackElo "2500"]
[PlyCount "59"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. 0-0 Qf6 8. Nc3 Qxd4 9. Qh5 Nf6 10. Re1+ Be7 11. Qg5 Qg4 12. Rxe7+ Kxe7 13. Nxd5+ Kf8 14. Nxf6 gxf6 15. Qxf6 Rg8 16. Bh6+ Ke8 17. Re1+ Be6 18. g3 Kd7 19. Bxh7 Rge8 20. Bf4 Qh5 21. Qc3 Re7 22. Be4 c6 23. Bf3 Qh3 24. Qc5 Rc8 25. Bg5 f6 26. Qd4+ Ke8 27. Qxf6 Rcc7 28. Rxe6 Qxe6 29. Bh5+ Kd7 30. Bg4 1-0

[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "2"]
[White "Wolff, Patrick G"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2305"]
[BlackElo "2500"]
[PlyCount "119"]
[EventDate "1985.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Ne5 Bd6 7. Nd2 0-0 8. Nxe4 dxe4 9. Nc4 Nc6 10. Nxd6 cxd6 11. Be3 d5 12. Qd2 a5 13. 0-0-0 b5 14. f3 exf3 15. Kb1 Bf5 16. Bd3 Qd7 17. Bxf5 Qxf5 18. Rhf1 Rac8 19. Rxf3 Qe4 20. a3 b4 21. Bh6 f6 22. Re3 Qf5 23. Rf3 Qd7 24. Rg3 Rf7 25. Bf4 Re7 26. Re3 Rxe3 27. Bxe3 bxa3 28. bxa3 a4 29. Ka2 Na7 30. Qd3 Nb5 31. Bd2 Rc4 32. Bb4 Rxd4 33. Qf3 Qc6 34. Kb2 Rxd1 35. Qxd1 d4 36. Qe2 h6 37. g3 Nc7 38. Qg4 Ne6 39. Qf5 Ng5 40. Qa5 Nf3 41. h4 Kh7 42. Qf5+ Kg8 43. Qa5 h5 44. Qxh5 Ne5 45. Qf5 Kf7 46. Qh5+ Ke6 47. Qe2 Kf5 48. Qh5+ Ke6 49. Qe2 Qd7 50. Qe4 Kf7 51. h5 d3 52. cxd3 Nxd3+ 53. Kc3 Ne5 54. Bc5 Qd1 55. Qb7+ Ke6 56. Qc8+ Nd7 57. Qe8+ Kf5 58. Qg6+ Ke5 59. Qe8+ Kf5 60. Qg6+ 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "10"]
[White "Alburt, Lev O"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "E07"]
[WhiteElo "2515"]
[PlyCount "80"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 e6 5. g3 Be7 6. Bg2 0-0 7. 0-0 Nbd7 8. Rd1 b6 9. Nc3 Bb7 10. cxd5 cxd5 11. Bf4 Rc8 12. Rac1 Nh5 13. Be3 Nhf6 14. Rc2 Rc4 15. a3 Qa8 16. Bg5 h6 17. Bxf6 Nxf6 18. Ne5 Rfc8 19. Rdc1 R4c7 20. Nb5 Rxc2 21. Rxc2 a6 22. Nc3 b5 23. Na2 Bd6 24. Nc1 Bxe5 25. dxe5 Nd7 26. Rxc8+ Qxc8 27. Nd3 d4 28. Bxb7 Qxb7 29. Qc2 g5 30. f3 Kg7 31. b4 g4 32. f4 Qe4 33. Qc7 Qxe2 34. Nf2 Nf8 35. Qd8 Qe3 36. Qf6+ Kg8 37. Qxh6 Qc1+ 38. Kg2 Qc6+ 39. Kg1 Qc1+ 40. Kg2 Qc6+ 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "4"]
[White "Benjamin, Joel"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "B63"]
[WhiteElo "2490"]
[PlyCount "83"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 Nxd4 9. Qxd4 0-0 10. f3 Qa5 11. Qd2 Rd8 12. Kb1 Qc7 13. Nb5 Qd7 14. g4 a6 15. Nd4 b5 16. h4 Bb7 17. Be3 Qe8 18. h5 e5 19. Nf5 d5 20. Nxg7 Nxe4 21. fxe4 Kxg7 22. Bh6+ Kg8 23. Qc3 dxe4 24. Be2 Qc6 25. Qxe5 Qxh6 26. Qxe7 Bd5 27. Rhf1 Re8 28. Qc5 Be6 29. g5 Qf8 30. Qe3 Rac8 31. Rd4 Qc5 32. c3 a5 33. g6 hxg6 34. hxg6 fxg6 35. Qh6 Bf5 36. Bg4 Qf8 37. Qg5 Qg7 38. Bxf5 gxf5 39. Qxf5 Rc7 40. Qd5+ Rf7 41. Rdd1 Qh7 42. Rg1+ 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "17"]
[White "Byrne, Robert Eugene"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "C75"]
[WhiteElo "2520"]
[PlyCount "32"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nge7 7. 0-0 Ng6 8. Nbd2 Be7 9. Re1 0-0 10. Nf1 Bg4 11. Bxc6 Nh4 12. N1d2 bxc6 13. h3 Nxf3+ 14. Nxf3 Bxf3 15. Qxf3 Bf6 16. Be3 Qb8 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "8"]
[White "Dlugy, Maxim"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2460"]
[PlyCount "83"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 b6 5. e3 Bb7 6. Bd3 Ne4 7. 0-0 f5 8. a3 Bxd2 9. Nxd2 Qf6 10. Bxe4 fxe4 11. Qg4 Qg6 12. Qxg6+ hxg6 13. f3 exf3 14. Nxf3 Nc6 15. Bd2 0-0-0 16. d5 Na5 17. Bxa5 bxa5 18. dxe6 dxe6 19. Rad1 a4 20. Ne5 Be4 21. Rxd8+ Rxd8 22. Rf4 Rd1+ 23. Kf2 Bf5 24. Rd4 Rb1 25. Rd2 Rh1 26. h3 Kb7 27. Kf3 Rf1+ 28. Ke2 Rg1 29. Kf2 Rh1 30. c5 Rc1 31. c6+ Ka6 32. Rd4 Rc2+ 33. Kf3 Rxb2 34. Rxa4+ Kb5 35. Rxa7 Rc2 36. Rxc7 Rc5 37. Nd7 Rxc6 38. Rxc6 Kxc6 39. e4 Kxd7 40. exf5 gxf5 41. a4 Kc6 42. a5 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "15"]
[White "Dzindzichashvili, Roman"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2485"]
[PlyCount "77"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Nf3 0-0 7. Bd3 e6 8. 0-0 exd5 9. exd5 Bg4 10. h3 Bxf3 11. Qxf3 Nfd7 12. Qd1 Ne5 13. Be2 f5 14. f4 Nf7 15. Bd2 Nd7 16. Bd3 h5 17. g3 a6 18. Kg2 Nh6 19. Re1 Rf7 20. Qf3 Nf8 21. Rab1 Re7 22. b4 Rxe1 23. Bxe1 cxb4 24. Rxb4 Qa5 25. Na4 Re8 26. Bd2 Bd4 27. Qd1 Qc7 28. Qb3 b6 29. c5 bxc5 30. Rb7 Qd8 31. Qb6 Qf6 32. Qc6 Re7 33. Rxe7 Qxe7 34. Nb6 Nf7 35. Nc8 Qf6 36. Qxa6 Bc3 37. Be3 Bd4 38. Bd2 Bc3 39. Be3 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "13"]
[White "Gurevich, Dmitry"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2545"]
[PlyCount "115"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. e3 Bf5 4. Qb3 Qc7 5. cxd5 cxd5 6. Nc3 e6 7. e4 Bxe4 8. Bf4 Qb6 9. f3 Bg6 10. Nb5 Na6 11. Rc1 Kd8 12. h4 f6 13. Kf2 Rc8 14. Rxc8+ Kxc8 15. Be2 e5 16. Be3 exd4 17. Nxd4 Qxb3 18. axb3 Nc7 19. Nh3 Bd6 20. Rc1 Kb8 21. h5 Be8 22. Nf5 Be5 23. Bc5 Ne6 24. Bd6+ Bxd6 25. Nxd6 Ne7 26. Bd3 Bd7 27. Re1 Nc6 28. Bf5 Ncd4 29. Bxe6 Nxe6 30. Rd1 Bc6 31. Re1 Bd7 32. Rd1 Bc6 33. Re1 Nc5 34. Re7 Rd8 35. Nf5 Rd7 36. Re8+ Kc7 37. Nd4 a5 38. Nf4 Kb6 39. Rh8 h6 40. Ke3 Re7+ 41. Kd2 Rf7 42. Rg8 Kc7 43. Nf5 Nxb3+ 44. Kc3 Nc5 45. Nxg7 Bd7 46. Nxd5+ Kd6 47. Nb6 f5 48. Nc4+ Ke7 49. Kd4 Nb3+ 50. Ke5 Nc5 51. Nxa5 Nd3+ 52. Kd4 Nxb2 53. Nxb7 Kf6 54. Nc5 Na4 55. Nge6 Nxc5 56. Nxc5 Ke7 57. Ke5 Bb5 58. Ne6 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "11"]
[White "Henley, Ron W"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D61"]
[WhiteElo "2495"]
[PlyCount "40"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Be7 7. Qc2 0-0 8. Rd1 a6 9. a3 b5 10. c5 Ne8 11. Bf4 g5 12. Bg3 f5 13. Ne5 Nxe5 14. Bxe5 Nf6 15. b4 Ng4 16. Bd3 Ra7 17. Ne2 Bf6 18. Bd6 Be7 19. Be5 Bf6 20. Bd6 Be7 1/2-1/2

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "2"]
[White "Kavalek, Lubomir"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2545"]
[PlyCount "95"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Qb3 dxc4 6. Qxc4 b5 7. Qd3 Nbd7 8. g3 Bb7 9. Bg2 Be7 10. 0-0 0-0 11. Bg5 b4 12. Bxf6 Nxf6 13. Na4 Qa5 14. Qc2 Nd7 15. b3 Rfd8 16. Rac1 c5 17. dxc5 Rac8 18. Ng5 Bxg5 19. Bxb7 Rc7 20. f4 Rxb7 21. fxg5 Rc7 22. Qd2 Rcc8 23. Qf4 Rf8 24. Rc4 Qb5 25. Qd6 Nb8 26. Nb2 Qa5 27. Na4 Rcd8 28. Qf4 Nc6 29. Qe3 Qc7 30. Nb2 a5 31. Nd3 e5 32. Nf2 Rd4 33. Rxd4 exd4 34. Qf4 Qd7 35. Ne4 Qd5 36. Qg4 Ne5 37. Qf5 Re8 38. Rf4 d3 39. exd3 Qxd3 40. Nd6 Qxf5 41. Rxf5 Re6 42. Nb7 Nc6 43. Rd5 Kf8 44. Kf2 Ke7 45. h4 Re5 46. Rxe5+ Nxe5 47. Nxa5 Ke6 48. Ke3 1-0

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "8"]
[White "Kogan, Boris Markovich"]
[Black "Alburt, Lev O"]
[Result "1-0"]
[ECO "A46"]
[BlackElo "2515"]
[PlyCount "61"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 Qb6 5. Qc1 Nc6 6. Bxf6 gxf6 7. c3 d5 8. Nbd2 Bd7 9. Qc2 Rc8 10. Qb3 f5 11. g3 c4 12. Qxb6 axb6 13. Ne5 Nxe5 14. dxe5 Ra8 15. a3 Ba4 16. Rc1 Ra5 17. Be2 Rg8 18. f4 Kd7 19. Kf2 Be7 20. Bd1 Bxd1 21. Rhxd1 Kc6 22. Nf3 Kb5 23. Nd4+ Ka4 24. Rb1 Raa8 25. b3+ cxb3 26. Rxb3 Bc5 27. Rdb1 Rac8 28. Rb5 h5 29. Ne2 Bxa3 30. R5b3 b5 31. Nd4 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "7"]
[White "Kogan, Boris Markovich"]
[Black "Browne, Walter Shawn"]
[Result "1/2-1/2"]
[ECO "E04"]
[BlackElo "2585"]
[PlyCount "94"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 c5 5. c4 dxc4 6. Qa4+ Bd7 7. Qxc4 Bc6 8. 0-0 Nbd7 9. dxc5 Bxc5 10. Nc3 Rc8 11. Qd3 0-0 12. e4 Ng4 13. Qe2 Nde5 14. Nxe5 Nxe5 15. Be3 Qb6 16. Bxc5 Qxc5 17. Rac1 Rfd8 18. Rfd1 Rxd1+ 19. Qxd1 Qb6 20. Qc2 h6 21. Rd1 Qc5 22. Qe2 b5 23. a3 a5 24. Nd5 Nc4 25. Nf4 Qe7 26. h4 Rd8 27. Rxd8+ Qxd8 28. Qc2 Qd4 29. b3 Qd2 30. Qb1 Nxa3 31. Qa1 Nc2 32. Qe5 Qd4 33. Qb8+ Kh7 34. Qc7 Qd1+ 35. Kh2 Qd7 36. Qxa5 e5 37. Nd5 Nd4 38. Qc3 Qa7 39. b4 f6 40. Qb2 Qa4 41. Nc3 Qa8 42. Nd5 Qa7 43. f4 Be8 44. fxe5 fxe5 45. Qf2 Bh5 46. Bh3 Qf7 47. Qxf7 Bxf7 1/2-1/2

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "3"]
[White "Kogan, Boris Markovich"]
[Black "Burger, Karl"]
[Result "1/2-1/2"]
[ECO "D23"]
[BlackElo "2305"]
[PlyCount "116"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 dxc4 4. Qa4+ Nc6 5. Qxc4 Bf5 6. Nc3 e6 7. a3 Nd5 8. Bg5 f6 9. Bh4 g5 10. e4 Nxc3 11. bxc3 Bxe4 12. Qxe6+ Qe7 13. Qxe7+ Bxe7 14. Bg3 0-0-0 15. Nd2 Bf5 16. Nc4 Rhe8 17. Be2 Bf8 18. h4 h6 19. Kd2 Nxd4 20. cxd4 Rxd4+ 21. Kc3 Rxe2 22. Kxd4 c5+ 23. Kc3 Rc2+ 24. Kb3 b5 25. Nd6+ Bxd6 26. Bxd6 a5 27. Bxc5 Rxc5 28. Rac1 Be6+ 29. Kb2 Bc4 30. hxg5 hxg5 31. a4 Kd7 32. Rhd1+ Ke6 33. Ka3 Rf5 34. Rd2 Rf4 35. axb5 Bxb5 36. Rc5 Ra4+ 37. Kb3 Rb4+ 38. Kc3 Rb1 39. Rb2 Rc1+ 40. Kd4 Rd1+ 41. Ke3 Bf1 42. Rb6+ Kf7 43. Rxa5 Bxg2 44. f3 Bh3 45. Ra7+ Kg6 46. Raa6 Kh5 47. Rxf6 Kh4 48. Rg6 Rd5 49. Ra1 Kg3 50. Rg1+ Bg2 51. f4 g4 52. Rg5 Rd8 53. f5 Re8+ 54. Kd4 Kf4 55. Rg7 Rd8+ 56. Kc5 Bf3 57. f6 Kf5 58. f7 Rf8 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "14"]
[White "Kogan, Boris Markovich"]
[Black "Christiansen, Larry Mark"]
[Result "1-0"]
[ECO "A49"]
[BlackElo "2550"]
[PlyCount "89"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 Nf6 4. Nf3 0-0 5. 0-0 d6 6. b3 Nc6 7. Bb2 Bf5 8. d5 Nb4 9. Nd4 Be4 10. c4 Bxg2 11. Kxg2 Qd7 12. Nc3 e5 13. Nc2 Nxc2 14. Qxc2 h5 15. e4 Ng4 16. Rae1 f5 17. f3 Nh6 18. exf5 gxf5 19. f4 Rae8 20. fxe5 dxe5 21. Qe2 f4 22. Qxh5 Rf5 23. Qf3 Ref8 24. Bc1 fxg3 25. Qxg3 Rxf1 26. Rxf1 Rxf1 27. Kxf1 Qf5+ 28. Ke1 Ng4 29. Qg2 e4 30. Nxe4 Ne5 31. Bh6 Ng6 32. Bxg7 Nh4 33. Qg4 Nf3+ 34. Kf2 Qxg4 35. Nf6+ Kxg7 36. Nxg4 Nd4 37. Ke3 Nc2+ 38. Ke4 Nb4 39. a3 Nc2 40. Kd3 Ne1+ 41. Ke4 Nc2 42. Ne3 Nxa3 43. Kd3 b5 44. Kc3 Kf6 45. Kb2 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "1"]
[White "Kogan, Boris Markovich"]
[Black "De Firmian, Nick E"]
[Result "1/2-1/2"]
[ECO "A46"]
[BlackElo "2515"]
[PlyCount "81"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 Qb6 5. Qc1 Nc6 6. Bxf6 gxf6 7. c3 d5 8. Nbd2 Bd7 9. Be2 Rc8 10. 0-0 cxd4 11. exd4 Bh6 12. Qb1 0-0 13. Nb3 Ne7 14. Nc5 Bc6 15. g3 Kh8 16. a4 Rg8 17. Nh4 Qc7 18. Bd3 Ng6 19. Nxg6+ hxg6 20. Re1 e5 21. Bf1 e4 22. a5 f5 23. b4 b6 24. axb6 axb6 25. Na6 Qd6 26. Qb2 f4 27. b5 Bd7 28. Nb4 fxg3 29. fxg3 f5 30. Ra7 Ra8 31. Rea1 Rxa7 32. Rxa7 f4 33. gxf4 Rf8 34. Qg2 Rxf4 35. Be2 Rf7 36. Qg3 Bf4 37. Qh4+ Kg7 38. Nc6 Be3+ 39. Kh1 Bxc6 40. Rxf7+ Kxf7 41. Qh7+ 1/2-1/2

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "9"]
[White "Kogan, Boris Markovich"]
[Black "Fedorowicz, John P"]
[Result "1-0"]
[ECO "A46"]
[BlackElo "2475"]
[PlyCount "61"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 cxd4 5. Nxd4 Nc6 6. 0-0 Bc5 7. Nxc6 bxc6 8. c4 0-0 9. Qc2 Be7 10. e4 e5 11. Nc3 d6 12. b3 Qc7 13. Bb2 Nd7 14. Rad1 a5 15. Na4 Nb6 16. Nxb6 Qxb6 17. c5 Qc7 18. Ba3 dxc5 19. Bxc5 a4 20. b4 Ba6 21. Rfe1 Bb5 22. a3 h6 23. Bf1 Rfd8 24. Bxe7 Qxe7 25. Bxb5 cxb5 26. Qc6 Rab8 27. Rxd8+ Qxd8 28. Rc1 Qe7 29. Rc5 Qe8 30. Qxe8+ Rxe8 31. Rxb5 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "5"]
[White "Kogan, Boris Markovich"]
[Black "Fedorowicz, John P"]
[Result "1/2-1/2"]
[ECO "A43"]
[BlackElo "2475"]
[PlyCount "89"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. d5 d6 5. Bg2 Nf6 6. 0-0 0-0 7. Nc3 Na6 8. h3 Nc7 9. a4 e6 10. dxe6 fxe6 11. e4 d5 12. e5 Nd7 13. Re1 Rf5 14. g4 Rf8 15. Bg5 Qe8 16. Qd2 Nb6 17. b3 Bd7 18. Bh4 Bc6 19. Bg3 d4 20. Ne4 Bxe4 21. Rxe4 Nbd5 22. Ne1 Nc3 23. Rf4 Rxf4 24. Bxf4 N7d5 25. Bg3 Rc8 26. Nd3 c4 27. Nb2 cxb3 28. cxb3 Qe7 29. Nc4 Qb4 30. Nd6 Rd8 31. Qc2 Rf8 32. Bxd5 Nxd5 33. Rd1 Nc3 34. Rd3 Qc5 35. Nc4 Qc6 36. f4 a6 37. Qg2 Qc5 38. a5 Nd5 39. Qe4 Nc3 40. Qxb7 Ne2+ 41. Kh2 Nxf4 42. Bxf4 Rxf4 43. Qa8+ Rf8 44. Qe4 Rd8 45. Kg2 1/2-1/2

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "6"]
[White "Kogan, Boris Markovich"]
[Black "Ivanov, Igor Vasilievich"]
[Result "1-0"]
[ECO "D77"]
[BlackElo "2550"]
[PlyCount "73"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. 0-0 d5 6. c4 dxc4 7. Na3 c3 8. bxc3 c5 9. Nc4 Be6 10. Nce5 Bd5 11. Ba3 Nc6 12. Nxc6 Bxc6 13. Qb3 Rc8 14. Rac1 Ne4 15. dxc5 e5 16. Rfd1 Qe7 17. Ne1 Bh6 18. e3 Rfe8 19. Qc4 Ng5 20. Bxc6 Rxc6 21. Qh4 Bg7 22. Rd6 e4 23. Qg4 h5 24. Qd1 Be5 25. h4 Ne6 26. Rxc6 bxc6 27. Qa4 f5 28. Qxc6 Rd8 29. Rb1 Qd7 30. Qa6 Rc8 31. Nc2 Bxc3 32. Qc4 Bg7 33. Nd4 Bxd4 34. exd4 Rd8 35. c6 Qd5 36. Qxd5 Rxd5 37. Rb7 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "12"]
[White "Kogan, Boris Markovich"]
[Black "Kavalek, Lubomir"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "2545"]
[PlyCount "110"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 g6 2. g3 Bg7 3. Bg2 Nf6 4. Nf3 0-0 5. 0-0 c6 6. b3 d5 7. Bb2 Ne4 8. Ne5 Nd7 9. Nxd7 Bxd7 10. Nd2 Bf5 11. Nxe4 dxe4 12. e3 Qd7 13. c4 Bh3 14. Qc2 Bxg2 15. Kxg2 Qf5 16. Qe2 Rad8 17. Rad1 Rd7 18. Rd2 Rfd8 19. Rfd1 Qa5 20. Bc1 e6 21. c5 Rd5 22. Qc4 Qc7 23. b4 Qd7 24. a4 a6 25. h4 h5 26. Qc2 f5 27. Bb2 Bf6 28. Bc3 Kf7 29. Qb3 g5 30. hxg5 Bxg5 31. Rh1 Rh8 32. b5 axb5 33. axb5 h4 34. bxc6 bxc6 35. Rb2 Kg6 36. Qb7 Rh7 37. Qxd7 Rdxd7 38. Rb6 Rc7 39. gxh4 Rxh4 40. Rxh4 Bxh4 41. f3 exf3+ 42. Kxf3 Rc8 43. Ra6 Kf7 44. Ra7+ Kg6 45. Ba5 Rh8 46. Bd2 Rc8 47. Kf4 Bf6 48. Be1 Re8 49. Kf3 e5 50. Bf2 f4 51. exf4 exd4 52. Rd7 Kf5 53. Bxd4 Rd8 54. Rxd8 Bxd8 55. Be5 Ba5 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "9"]
[White "Kogan, Boris Markovich"]
[Black "Kudrin, Sergey"]
[Result "1-0"]
[ECO "E01"]
[BlackElo "2520"]
[PlyCount "93"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 d5 6. Bg2 e5 7. Nf3 d4 8. 0-0 Nc6 9. e3 Bc5 10. exd4 exd4 11. Nbd2 0-0 12. Nb3 Qb6 13. Bf4 Re8 14. Re1 Bg4 15. Rxe8+ Rxe8 16. h3 Bh5 17. Nxc5 Qxc5 18. Qb3 Bxf3 19. Bxf3 g5 20. Qb5 Qxb5 21. cxb5 gxf4 22. bxc6 bxc6 23. gxf4 c5 24. Rc1 Rb8 25. b3 Rb5 26. Kf1 Kf8 27. Ke2 Ke7 28. Kd3 Kd6 29. Re1 Ra5 30. a4 Ra6 31. Re5 Rb6 32. Kc2 Rb4 33. Rf5 d3+ 34. Kc3 Ke6 35. Rxc5 Rxf4 36. Bb7 Nd7 37. Ra5 Kd6 38. Rxa7 Nc5 39. b4 Nxb7 40. Rxb7 Rxf2 41. Kxd3 Rf3+ 42. Ke4 Rxh3 43. a5 h5 44. Kd4 h4 45. Rxf7 Rh1 46. Rf6+ Kc7 47. Kc5 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "3"]
[White "Kogan, Boris Markovich"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[ECO "A46"]
[BlackElo "2525"]
[PlyCount "30"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 e6 3. g3 b5 4. Bg2 Bb7 5. 0-0 c5 6. c3 Be7 7. dxc5 Bxc5 8. b4 Be7 9. a4 bxa4 10. Qxa4 0-0 11. c4 Qc8 12. Nbd2 d5 13. Bb2 dxc4 14. Rfc1 Nbd7 15. Nxc4 Bc6 1/2-1/2

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "16"]
[White "Kogan, Boris Markovich"]
[Black "Tarjan, James Edward"]
[Result "1/2-1/2"]
[ECO "E05"]
[BlackElo "2505"]
[PlyCount "95"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 0-0 6. 0-0 dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bf4 Bd6 11. Nbd2 Nbd7 12. a4 Qb8 13. Ne5 Bxg2 14. Kxg2 c5 15. Ndf3 Rc8 16. Nxd7 Nxd7 17. Bxd6 Qxd6 18. axb5 axb5 19. dxc5 Qxc5 20. Qxc5 Nxc5 21. Rxa8 Rxa8 22. Rc1 Ne4 23. Nd4 Nd6 24. Rc6 Rd8 25. Rb6 Kf8 26. e3 Ke8 27. b3 Kd7 28. Nxb5 Ne4 29. Nd4 Kc7 30. Rc6+ Kb7 31. Rc4 Nd6 32. Rc2 Ra8 33. f4 Ra1 34. g4 Rb1 35. h4 Ne8 36. g5 Nc7 37. h5 Nd5 38. Re2 Kc8 39. g6 hxg6 40. hxg6 fxg6 41. Nxe6 Rxb3 42. Kf3 Ra3 43. Re1 Kd7 44. Nf8+ Ke7 45. Nxg6+ Kf6 46. Nf8 Kf5 47. Kf2 Nxe3 48. Rxe3 1/2-1/2

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "1"]
[White "Kogan, Boris Markovich"]
[Black "Van Tilbury, Craig"]
[Result "1-0"]
[ECO "E02"]
[BlackElo "2210"]
[PlyCount "97"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Nf3 Nbd7 8. Nc3 Nb6 9. Qd3 Bb4 10. 0-0 0-0 11. Bg5 h6 12. Bxf6 Qxf6 13. a3 Bd6 14. e4 e5 15. d5 Bd7 16. Nd2 Qg6 17. Nf3 Qh5 18. Nh4 g6 19. Nb5 Qg5 20. Rac1 a6 21. Nxd6 cxd6 22. Nf3 Qd8 23. Qe3 Kg7 24. Nd2 Na4 25. b3 Nc5 26. b4 Na4 27. f4 Bb5 28. Rfe1 f6 29. Nb3 Rf7 30. Bh3 Bd7 31. Be6 Re7 32. f5 Bxe6 33. fxe6 Rc8 34. Rxc8 Qxc8 35. Rc1 Rc7 36. Rxc7+ Qxc7 37. Na5 Nc3 38. Kg2 Nb5 39. Qd3 Nd4 40. Qc4 Qxc4 41. Nxc4 Nc2 42. Nxd6 Kf8 43. Nxb7 Ke7 44. Nc5 Nxa3 45. Nxa6 Nb5 46. g4 Nc3 47. Kf3 Kd6 48. Nc5 f5 49. gxf5 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "6"]
[White "Peters, Jack"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "C03"]
[WhiteElo "2500"]
[PlyCount "36"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 a6 4. e5 c5 5. Ngf3 Nc6 6. dxc5 Qc7 7. Qe2 Bxc5 8. Nb3 Bb6 9. g3 Nge7 10. Bd2 Bd7 11. h4 h5 12. Bh3 Ng6 13. Bc3 0-0-0 14. Ng5 d4 15. Bd2 Ncxe5 16. a4 Bc6 17. 0-0 d3 18. Qd1 Ng4 0-1

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "7"]
[White "Portisch, Lajos"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D65"]
[WhiteElo "2625"]
[PlyCount "135"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. Nc3 0-0 6. e3 Nbd7 7. Rc1 a6 8. cxd5 exd5 9. Bd3 c6 10. Qc2 g6 11. 0-0 Nh5 12. Bh6 Ng7 13. Na4 Bd6 14. Qc3 Nf6 15. Bg5 Be7 16. Qb3 Nd7 17. Bh6 Bd6 18. Rfe1 Rb8 19. h3 f5 20. Ng5 Nf6 21. Nc5 Re8 22. f4 Qa5 23. Nf3 Ne6 24. Qc2 Ne4 25. Bxe4 dxe4 26. Ne5 Bxe5 27. fxe5 Nxc5 28. dxc5 Be6 29. Red1 Bd5 30. a3 Qd8 31. Qf2 Rc8 32. Qg3 Qe7 33. Bf4 Qe6 34. h4 h5 35. Rd4 Rc7 36. Bg5 Rf7 37. Bf6 Kh7 38. Qf4 Ref8 39. Kf2 Rd7 40. Kg1 Rff7 41. Rcd1 Rf8 42. Rb4 Rff7 43. Rd2 Rf8 44. Rbd4 Rff7 45. Kh2 Rf8 46. Qg5 Rdf7 47. Rf2 Rd7 48. Rdd2 Rff7 49. Rf4 Bb3 50. Rd6 Rxd6 51. cxd6 Qd7 52. Rf2 a5 53. Rd2 a4 54. Qg3 Be6 55. Qe1 c5 56. Qc1 Qb5 57. Bg5 b6 58. Bf4 Rb7 59. Qe1 Qd7 60. Rc2 Ra7 61. Qg3 Qd8 62. Bg5 Qa8 63. Rd2 Rf7 64. d7 Rxd7 65. Rxd7+ Bxd7 66. e6 Bxe6 67. Qc7+ Kg8 68. Bh6 1-0

[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "2"]
[White "Shirazi, Kamran"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "C73"]
[PlyCount "82"]
[EventDate "1984.07.??"]
[EventType "tourn"]
[EventRounds "17"]
[EventCountry "USA"]
[EventCategory "11"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. Bxc6+ bxc6 6. d4 exd4 7. Nxd4 c5 8. Ne2 Nf6 9. c4 Be7 10. Nbc3 0-0 11. 0-0 Nd7 12. b3 Bf6 13. Bb2 Re8 14. Qc2 Bb7 15. Rad1 Nf8 16. f3 Ng6 17. Kh1 Qe7 18. Nd5 Bxd5 19. Rxd5 Bxb2 20. Qxb2 a5 21. Nc3 Ne5 22. Qc1 Nc6 23. Rg5 f6 24. Rg3 Qf7 25. f4 a4 26. e5 axb3 27. exf6 Qxf6 28. Nd5 Qf7 29. axb3 Nd4 30. Qb1 c6 31. Ne3 Rab8 32. Ng4 Kh8 33. Rh3 Qf5 34. Qxf5 Nxf5 35. Nf2 Nd4 36. Rb1 Rxb3 37. Rhxb3 Nxb3 38. g3 Nd2 39. Rc1 Re2 40. Kg1 Kg8 41. Kg2 d5 0-1

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "5"]
[White "Spraggett, Kevin"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2540"]
[PlyCount "88"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Ne7 5. e4 Nbc6 6. Nge2 d6 7. d3 0-0 8. 0-0 f5 9. exf5 Nxf5 10. Rb1 Nfd4 11. Nxd4 Nxd4 12. b4 a6 13. Be3 Rb8 14. a4 Be6 15. h3 h6 16. Kh2 g5 17. b5 a5 18. b6 c6 19. Ne4 Qd7 20. Bc1 Rf7 21. Ba3 Bf8 22. Qh5 Bf5 23. f4 exf4 24. gxf4 d5 25. Bxf8 Rbxf8 26. cxd5 cxd5 27. Nc3 Bxd3 28. Qxh6 Bxb1 29. Rxb1 Nf5 30. Qxg5+ Kh8 31. Nxd5 Qxa4 32. Rc1 Qd4 33. Rc7 a4 34. Qh5+ Kg8 35. Qg6+ Rg7 36. Qe6+ Kh7 37. Qe2 a3 38. Qh5+ Kg8 39. Rxg7+ Qxg7 40. Qe2 Qb2 41. Qg4+ Kh7 42. Qh5+ Nh6 43. Ne7 Rf6 44. Nd5 Rg6 0-1

[Event "New York International"]
[Site "New York"]
[Date "1984.??.??"]
[Round "4"]
[White "Yoffie, Marc"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2355"]
[PlyCount "59"]
[EventDate "1984.04.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 b5 3. a4 b4 4. Bg2 Bb7 5. 0-0 e6 6. d3 d5 7. Nbd2 Be7 8. e4 0-0 9. Re1 c5 10. exd5 Nxd5 11. Ne5 Nc6 12. Nec4 Nd4 13. Ne4 b3 14. cxb3 Nb4 15. Rb1 Qd7 16. Be3 Rfd8 17. Rc1 Nxd3 18. Qxd3 Nf3+ 19. Bxf3 Qxd3 20. Nxc5 Bxc5 21. Bxb7 Rab8 22. Bg2 Bxe3 23. Rxe3 Qd4 24. Bf3 g6 25. Rcc3 Rbc8 26. Ne5 Rxc3 27. bxc3 Qd2 28. Nc6 Qc1+ 29. Kg2 Rd2 30. Nd4 0-1

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "7"]
[White "Browne, Walter Shawn"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D67"]
[WhiteElo "2540"]
[PlyCount "61"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Be7 7. Rc1 0-0 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. 0-0 Nxc3 12. bxc3 e5 13. Qe2 e4 14. Nd2 Nf6 15. f3 Be6 16. Bxe6 Qxe6 17. c4 exf3 18. gxf3 Rad8 19. Rce1 Rfe8 20. Qf2 b5 21. cxb5 cxb5 22. Nb3 Nd5 23. Nc5 Qh6 24. e4 Nf4 25. Kh1 Rd6 26. Qd2 Qh4 27. Rg1 Ne6 28. Nxe6 fxe6 29. Qe3 Rd7 30. Rg5 a6 31. Rc1 1/2-1/2

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "2"]
[White "De Firmian, Nick E"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "C16"]
[WhiteElo "2475"]
[PlyCount "75"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. Nf3 b6 6. Bd3 Ba6 7. 0-0 Bxc3 8. bxc3 Bxd3 9. cxd3 Nd7 10. Re1 h6 11. Nh4 g6 12. Ba3 c5 13. Qg4 Qc8 14. dxc5 Qa6 15. c6 Nxc6 16. Bd6 Qxd3 17. Nf3 Nc5 18. Qh4 Ne4 19. Rad1 Qc4 20. Rxe4 Qxe4 21. Qf6 Rh7 22. Nd4 Kd7 23. Nxc6 Kxc6 24. Qe7 Rc8 25. Qxa7 g5 26. c4 Qc2 27. cxd5+ exd5 28. Rf1 f6 29. Qa3 Kb7 30. Qf3 fxe5 31. Qxd5+ Qc6 32. Qxe5 Rd7 33. Bb4 Qd5 34. Qe3 Qxa2 35. h3 Qd5 36. Ra1 Rc6 37. Qa3 Rcc7 38. Qa8# 1-0

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "11"]
[White "Dzindzichashvili, Roman"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2460"]
[PlyCount "83"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bb4 3. Nf3 Bxc3 4. dxc3 Nc6 5. e4 d6 6. Be2 Nge7 7. 0-0 Ng6 8. Bg5 f6 9. Be3 Be6 10. c5 dxc5 11. Bxc5 Qxd1 12. Rfxd1 Kf7 13. g3 Rhd8 14. Rxd8 Rxd8 15. Be3 b6 16. Nd2 Nge7 17. Bb5 g5 18. f3 a5 19. b3 h6 20. Kf1 Na7 21. Ba6 Nac8 22. Ke2 Nd6 23. Bd3 Ra8 24. a4 f5 25. Bc2 f4 26. Bf2 h5 27. gxf4 gxf4 28. Rg1 Rg8 29. Rxg8 Kxg8 30. Kd3 Bc8 31. Ke2 Kf7 32. Bd3 Be6 33. Kd1 Ke8 34. Kc2 Kd7 35. b4 Nc6 36. b5 Ne7 37. c4 c5 38. Kc3 Ng6 39. Nb3 Nb7 40. Bf1 Kd6 41. Nd2 Nd8 42. Kd3 1/2-1/2

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "13"]
[White "Gurevich, Dmitry"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2470"]
[PlyCount "169"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 0-0 6. 0-0 Be7 7. Re1 d6 8. d4 Bg4 9. d5 Nb8 10. h3 Bc8 11. Bf1 Ne8 12. c4 Nd7 13. Nc3 g6 14. Bh6 Ng7 15. Qd2 Kh8 16. b4 Nf6 17. c5 Ng8 18. cxd6 cxd6 19. Be3 f5 20. exf5 gxf5 21. Bg5 Bxg5 22. Nxg5 f4 23. Ne6 Bxe6 24. dxe6 Rf6 25. Rad1 Rxe6 26. Nb5 Nf5 27. Qd5 Re7 28. Nxd6 Qxd6 29. Qxd6 Nxd6 30. Rxd6 Kg7 31. Rd5 Kf6 32. Bc4 Nh6 33. g3 Rc8 34. Bb3 fxg3 35. fxg3 Nf5 36. g4 Nh4 37. Kf2 Ng6 38. Re3 Rc1 39. Kg3 Rg1+ 40. Kf2 Rh1 41. Rd6+ Kg5 42. Rd1 Rxd1 43. Bxd1 Kh4 44. Be2 Nf4 45. Bf1 e4 46. Bg2 Nd3+ 47. Ke2 Nxb4 48. Rxe4 Rxe4+ 49. Bxe4 h6 50. a3 Nc6 51. Bg2 Kg3 52. Bf1 Nd4+ 53. Ke3 Nf3 54. Bc4 Ng5 55. h4 Kxh4 56. Kf4 Nh3+ 57. Kf5 Nf2 58. Be2 b6 59. Kf4 Nh3+ 60. Kf5 Kg3 61. Ba6 Ng5 62. Bc8 Nf3 63. Kg6 Ne5+ 64. Kh5 Kf4 65. a4 Kg3 66. Bf5 Kf3 67. Be6 Kf4 68. Bc8 Kg3 69. Bf5 Kf3 70. Be6 a6 71. Bc8 Kf4 72. Bxa6 Nxg4 73. Be2 Nf6+ 74. Kxh6 Nd5 75. Bb5 Nc3 76. Be8 Ke5 77. Kg6 Kd5 78. Kf6 Ne4+ 79. Ke7 Kc5 80. Bg6 Nc3 81. Bc2 Kb4 82. Kd6 Nxa4 83. Kc6 b5 84. Bd3 Nc3 85. Bxb5 1/2-1/2

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "6"]
[White "Kogan, Boris Markovich"]
[Black "Alburt, Lev O"]
[Result "0-1"]
[ECO "A57"]
[BlackElo "2560"]
[PlyCount "68"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. c4 g6 5. Nbd2 Bg7 6. e4 0-0 7. Bd3 bxc4 8. Nxc4 Ba6 9. Qc2 e6 10. dxe6 fxe6 11. e5 Nd5 12. a3 Nc6 13. h4 Qc7 14. h5 Bxc4 15. Qxc4 Nxe5 16. Nxe5 Qxe5+ 17. Qe4 Rab8 18. hxg6 hxg6 19. Rb1 Nf4 20. Bxf4 Qxe4+ 21. Bxe4 Rxf4 22. Bxg6 Rxb2 23. 0-0 Kf8 24. f3 Ra4 25. Rxb2 Bxb2 26. Rb1 Bd4+ 27. Kh2 Rxa3 28. Rb7 Ke7 29. Be4 Kd6 30. g4 c4 31. Rb1 Be5+ 32. Kh3 Kc5 33. Rf1 Ra1 34. Bb1 c3 0-1

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "8"]
[White "Kogan, Boris Markovich"]
[Black "Benjamin, Joel"]
[Result "1/2-1/2"]
[ECO "A31"]
[BlackElo "2475"]
[PlyCount "114"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 c5 3. Nf3 b6 4. d4 cxd4 5. Nxd4 Bb7 6. f3 e6 7. e4 Nc6 8. Be3 Bc5 9. Be2 0-0 10. Nxc6 Bxc6 11. Bxc5 bxc5 12. 0-0 Qb8 13. Qd2 Rd8 14. Rac1 a6 15. Bd3 Qd6 16. Qe3 e5 17. Rf2 Nh5 18. g3 g6 19. f4 exf4 20. gxf4 Re8 21. Re1 Rab8 22. e5 Qe7 23. Be4 f6 24. Nd5 Bxd5 25. Bxd5+ Kh8 26. Qc3 Ng7 27. Rfe2 fxe5 28. Rxe5 Qf8 29. Rxe8 Rxe8 30. Rxe8 Qxe8 31. Kf2 Qf8 32. Ke3 d6 33. Be4 Qd8 34. b4 cxb4 35. Qxb4 Nh5 36. Qb2+ Nf6 37. Qd4 Qe7 38. Kd3 Kg7 39. Bf3 Qd7 40. Ke3 a5 41. Kf2 Qc7 42. Kg3 Qc5 43. Qxc5 dxc5 44. h4 Ne8 45. h5 gxh5 46. Be4 h6 47. Kh4 Nf6 48. Bd3 Kf7 49. Bf5 Ke7 50. Bc2 Kf7 51. Bf5 Kf8 52. Bc2 Kg8 53. Bd3 Kh8 54. Bc2 Kg8 55. Bd3 Kf8 56. Bc2 Kg7 57. Bd3 Kf7 1/2-1/2

[Event "New York op"]
[Site "New York"]
[Date "1983.??.??"]
[Round "?"]
[White "Kogan, Boris Markovich"]
[Black "Blocker, Calvin"]
[Result "1-0"]
[ECO "A53"]
[BlackElo "2410"]
[PlyCount "125"]
[EventDate "1983.03.30"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 Bf5 4. Nc3 Nbd7 5. Nh4 Bg6 6. Nxg6 hxg6 7. g3 e5 8. Bg2 exd4 9. Qxd4 c6 10. 0-0 Qb6 11. Be3 Qxd4 12. Bxd4 Be7 13. Rad1 Nf8 14. h3 Ne6 15. Be3 g5 16. b4 g4 17. h4 Kd7 18. b5 Kc7 19. Rb1 Nd7 20. a4 Ne5 21. Rfc1 a5 22. Ne4 f5 23. Nd2 g5 24. hxg5 Bxg5 25. Bxg5 Nxg5 26. Nb3 Ne6 27. Rc3 Nd7 28. Re3 Rhe8 29. bxc6 bxc6 30. Bxc6 Kxc6 31. Rxe6 Rxe6 32. Nd4+ Kc5 33. Nxe6+ Kxc4 34. Ng7 Rf8 35. Rb5 Nc5 36. Rxa5 Kb4 37. Rb5+ Kxa4 38. Rb6 Ne4 39. Ne6 Rf6 40. Nf4 Ka5 41. Rb8 Ka6 42. Kg2 Ka7 43. Rb4 Nc5 44. Nd5 Rf7 45. Kf1 Ne6 46. Ne3 Ka6 47. Ke1 Ka7 48. Kd2 Ka6 49. Kc3 Rf8 50. Nc4 Nc7 51. Rb6+ Ka7 52. Rb2 Rf6 53. e3 Re6 54. Na5 Ka6 55. Nc6 d5 56. Nd4 Re5 57. Rb8 Ne8 58. Kb4 Nd6 59. Kc5 Ne4+ 60. Kc6 Ka5 61. Nb3+ Ka4 62. Nc5+ Ka3 63. Ra8+ 1-0

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "1"]
[White "Kogan, Boris Markovich"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[ECO "A46"]
[BlackElo "2520"]
[PlyCount "51"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 h6 5. Bxf6 Qxf6 6. Nbd2 cxd4 7. exd4 Nc6 8. c3 d5 9. Bd3 Bd6 10. 0-0 0-0 11. Qe2 Re8 12. Rae1 e5 13. Nxe5 Nxe5 14. dxe5 Bxe5 15. Qd1 Bd7 16. Nf3 Bc7 17. Rxe8+ Rxe8 18. Re1 Rxe1+ 19. Qxe1 Kf8 20. Nd4 Qe5 21. Qxe5 Bxe5 22. g3 Bxd4 23. cxd4 g5 24. f4 f6 25. Kf2 Ke7 26. h4 1/2-1/2

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "10"]
[White "Kogan, Boris Markovich"]
[Black "Kudrin, Sergey"]
[Result "1/2-1/2"]
[ECO "D94"]
[BlackElo "2505"]
[PlyCount "64"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 c5 2. Nc3 g6 3. Nf3 Bg7 4. e3 Nf6 5. d4 0-0 6. Be2 cxd4 7. exd4 d5 8. 0-0 Nc6 9. Bg5 dxc4 10. Bxc4 Bg4 11. d5 Ne5 12. Be2 Bxf3 13. Bxf3 Qb6 14. Re1 Nxf3+ 15. Qxf3 h6 16. Bh4 Qb4 17. Bg3 Nh5 18. Rab1 Nxg3 19. hxg3 Rac8 20. Qe3 Rfe8 21. Qxa7 Bd4 22. Re4 Rc4 23. a3 Bxa7 24. axb4 Rxe4 25. Nxe4 Rc8 26. Nc3 Rc4 27. Re1 Rxb4 28. Rxe7 Rxb2 29. Ne4 f5 30. Nf6+ Kf8 31. d6 Bxf2+ 32. Kh2 Rb3 1/2-1/2

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "12"]
[White "Kogan, Boris Markovich"]
[Black "Lein, Anatoly"]
[Result "1/2-1/2"]
[ECO "E20"]
[BlackElo "2490"]
[PlyCount "82"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. d4 e6 4. Nc3 cxd4 5. Nxd4 Bb4 6. g3 0-0 7. Bg2 d5 8. cxd5 Nxd5 9. Bd2 Bxc3 10. bxc3 e5 11. Nb3 Nc6 12. 0-0 Nde7 13. c4 Qc7 14. Qc2 Bf5 15. Qb2 Rad8 16. Rac1 Bc8 17. Bc3 b6 18. c5 b5 19. Qa3 Be6 20. Rfd1 Rb8 21. Ba5 Qc8 22. Bb4 Bh3 23. Bh1 Qg4 24. e4 Nxb4 25. Qxb4 Nc6 26. Qc3 b4 27. Qe3 Qc8 28. Bg2 Be6 29. Rd5 a5 30. Nd2 a4 31. Nc4 Rd8 32. Nb6 Qa6 33. Bf1 Qa5 34. Kg2 Bxd5 35. exd5 Rxb6 36. cxb6 Qxd5+ 37. Qf3 e4 38. Qe3 Nd4 39. Rc4 b3 40. axb3 axb3 41. b7 Qxb7 1/2-1/2

[Event "New York op"]
[Site "New York"]
[Date "1983.??.??"]
[Round "2"]
[White "Kogan, Boris Markovich"]
[Black "Martinovsky, Eugene Simeon"]
[Result "0-1"]
[ECO "D93"]
[BlackElo "2255"]
[PlyCount "72"]
[EventDate "1983.03.30"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 6. Nf3 0-0 7. Bd3 dxc4 8. Bxc4 b5 9. Be2 Nbd7 10. Ne5 Nxe5 11. Bxe5 Be6 12. 0-0 Rc8 13. a4 b4 14. Na2 Qb6 15. Nc1 a5 16. Nd3 Nd7 17. Bxg7 Kxg7 18. Rc1 Rfd8 19. Bf3 f6 20. Qc2 Bf5 21. Qc4 Bxd3 22. Qxd3 c5 23. Qe4 e5 24. Rfd1 f5 25. Qd5 exd4 26. exd4 Nf6 27. Qc4 cxd4 28. Qxc8 Rxc8 29. Rxc8 Qe6 30. Rc7+ Kh6 31. g3 Qb3 32. Kg2 Qxb2 33. Rf7 Ne4 34. Bxe4 Qb3 35. Rxd4 Qxf7 36. Bd5 Qd7 0-1

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "4"]
[White "Kogan, Boris Markovich"]
[Black "Tarjan, James Edward"]
[Result "0-1"]
[ECO "A38"]
[BlackElo "2535"]
[PlyCount "80"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 c5 5. c4 d6 6. Bg2 e5 7. 0-0 0-0 8. d3 Nc6 9. Nc3 Rb8 10. Ne1 Be6 11. Nd5 Qd7 12. Nc2 Bh3 13. Nxf6+ Bxf6 14. Bxh3 Qxh3 15. Ne3 Bg7 16. Nd5 Qd7 17. e3 f5 18. f4 Ne7 19. fxe5 dxe5 20. e4 Rf7 21. Qe2 Nc6 22. Rf2 Rbf8 23. Raf1 Qd6 24. Qd2 Qd8 25. a3 Nd4 26. Bxd4 cxd4 27. b4 h5 28. h3 Kh7 29. Qe2 Qg5 30. Kh2 f4 31. gxf4 exf4 32. Qf3 Be5 33. Rg2 Qh4 34. Kh1 g5 35. Rh2 Rh8 36. c5 Kg8 37. Rff2 g4 38. Rhg2 Kf8 39. Qd1 f3 40. Kg1 fxg2 0-1

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "5"]
[White "Shirazi, Kamran"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "C15"]
[PlyCount "111"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. Qd3 Nbd7 8. Bf4 Nxe4 9. Qxe4 Nf6 10. Qf3 0-0 11. 0-0-0 Rb8 12. Nc3 Nd5 13. Nxd5 exd5 14. Qg3 Bh4 15. Qc3 Bg5 16. Qd2 Bxf4 17. Qxf4 Be6 18. Bd3 b6 19. Rhe1 c5 20. Re5 c4 21. Bf5 Qf6 22. g4 g6 23. g5 Qe7 24. Bxe6 fxe6 25. Qe3 Rbe8 26. Re1 Rf5 27. Rxf5 gxf5 28. Rg1 Qg7 29. f4 Kf7 30. Rg3 h5 31. g6+ Ke7 32. Rg5 Kd7 33. h4 Rh8 34. a4 a5 35. Kd2 Qf6 36. g7 Rg8 37. Qg1 Ke8 38. Rg6 Qe7 39. Qg5 Kd7 40. c3 Qf7 41. Ke3 Qe7 42. Kf3 Qf7 43. Kg3 Kd6 44. Kh3 Kc6 45. Qh6 Kd6 46. Rf6 Qe7 47. Rxf5 Rxg7 48. Rxh5 Rf7 49. Qg5 Kd7 50. Rh8 Rg7 51. Qe5 Qf7 52. Rb8 Kc6 53. Rc8+ Kb7 54. Qb8+ Ka6 55. Qa8+ Qa7 56. Qc6 1-0

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "3"]
[White "Soltis, Andrew E"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2455"]
[PlyCount "119"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nf6 5. e5 Nfd7 6. c3 Nc6 7. Bd3 Qb6 8. 0-0 cxd4 9. cxd4 Nxd4 10. Nxd4 Qxd4 11. Nf3 Qb6 12. Qc2 h6 13. Be3 Bc5 14. Bd2 Be7 15. Rac1 0-0 16. Be3 Qd8 17. Qe2 Re8 18. Rc3 f5 19. Nd4 Nxe5 20. Bb5 Nc4 21. Bxe8 Qxe8 22. f4 Bf6 23. Bf2 Bd7 24. Rc2 Nd6 25. Rfc1 Ne4 26. Nf3 Qb8 27. g3 Nxf2 28. Qxf2 Qd6 29. Rd2 g5 30. Qe3 gxf4 31. gxf4 Kh7 32. Ne5 Rg8+ 33. Rg2 d4 34. Rd1 Bxe5 35. Qxe5 Rxg2+ 36. Kxg2 Bc6+ 37. Kf1 Qxe5 38. fxe5 d3 39. Kf2 Be4 40. Rg1 Bd5 41. b3 f4 42. Ke1 f3 43. Kd2 Bc6 44. Rg4 h5 45. Rf4 h4 46. Rxh4+ Kg6 47. Rf4 Kg5 48. Ke3 Bd5 49. h4+ Kh5 50. Kxd3 a5 51. Ke3 Kg6 52. Kf2 Kh5 53. Kg3 Bc6 54. Rc4 Kg6 55. Rxc6 bxc6 56. Kxf3 Kf5 57. Ke3 c5 58. h5 Kxe5 59. h6 Kf6 60. Ke4 1-0

[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "9"]
[White "Whitehead, Jay E"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "E74"]
[WhiteElo "2325"]
[PlyCount "120"]
[EventDate "1983.07.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "USA"]
[EventCategory "10"]
[SourceTitle "MCL"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Be2 0-0 7. Bg5 b5 8. cxb5 Qa5 9. Bd2 a6 10. a4 axb5 11. Nxb5 Qb6 12. Qc2 Re8 13. Nf3 e6 14. dxe6 Rxe6 15. Ng5 Re7 16. Bf4 Ne8 17. 0-0 Nc6 18. Bc4 h6 19. Nxf7 Rxf7 20. Bxf7+ Kxf7 21. Qb3+ Ke7 22. Qg8 Be6 23. Bxd6+ Kf6 24. e5+ Nxe5 25. Bxe5+ Kxe5 26. Qh7 Kf6 27. Ra3 Kf7 28. Rd1 Rd8 29. Rad3 Rxd3 30. Rxd3 Bf5 31. Rf3 Qe6 32. g4 Nf6 33. Rxf5 gxf5 34. Qxf5 Qxf5 35. Nd6+ Kg6 36. gxf5+ Kg5 37. a5 Nd7 38. a6 Nb6 39. a7 Bf8 40. Nc4 Na8 41. Ne3 Kf4 42. Kg2 Ke5 43. Kg3 c4 44. Kg4 Bc5 45. Nxc4+ Kf6 46. Ne3 Bxa7 47. Kh5 Nb6 48. Kxh6 Nc8 49. Kh5 Nd6 50. Kg4 Ne4 51. Kf4 Nxf2 52. Ng4+ Nxg4 53. Kxg4 Bb8 54. h3 Bd6 55. h4 Bf8 56. Kf4 Bb4 57. h5 Bf8 58. b3 Bh6+ 59. Ke4 Bf8 60. Kf4 Bh6+ 1/2-1/2

[Event "New York op"]
[Site "New York"]
[Date "1983.??.??"]
[Round "6"]
[White "Yedidia, Jonathan"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "A68"]
[PlyCount "80"]
[EventDate "1983.03.30"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 d6 5. e4 Bg7 6. f4 0-0 7. Nf3 e6 8. Be2 exd5 9. cxd5 Re8 10. 0-0 Bg4 11. h3 Bxf3 12. Bxf3 Nfd7 13. Be3 Na6 14. Kh1 Rb8 15. a4 Nb4 16. Qd2 a6 17. Rae1 b5 18. axb5 axb5 19. g4 c4 20. e5 dxe5 21. f5 e4 22. Nxe4 Nd3 23. Re2 Nf6 24. Bg5 Nxe4 25. Bxe4 Qd6 26. Bxd3 cxd3 27. Rxe8+ Rxe8 28. Qxd3 Bxb2 29. Qxb5 Rb8 30. Qd3 Be5 31. Rc1 Rb2 32. Rc8+ Kg7 33. Rc6 Qb8 34. f6+ Kg8 35. Bd2 h6 36. Qe3 Bd6 37. Qc3 Qb5 38. Kg1 Qe2 39. Qxb2 Bh2+ 40. Kh1 Bg3 0-1

[Event "Reykjavik Open"]
[Site "Reykjavik"]
[Date "1982.02.??"]
[Round "?"]
[White "Adorjan, Andras"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2515"]
[PlyCount "51"]
[EventDate "1982.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bb4 3. Nf3 Bxc3 4. dxc3 Nc6 5. g3 Nge7 6. c5 b6 7. Be3 0-0 8. Bg2 Rb8 9. b3 f5 10. cxb6 cxb6 11. Bg5 d6 12. 0-0 h6 13. Bc1 f4 14. gxf4 exf4 15. c4 Be6 16. Bb2 Ng6 17. Kh1 Qe7 18. Rg1 Nce5 19. Nxe5 Nxe5 20. Bd5 Rf5 21. f3 Re8 22. Be4 Rg5 23. Qd4 Rc8 24. Qf2 Bf5 25. Bd5+ Be6 26. Be4 1/2-1/2

[Event "Reykjavik Open"]
[Site "Reykjavik"]
[Date "1982.02.??"]
[Round "?"]
[White "Angantysson, Haukur"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "C79"]
[WhiteElo "2400"]
[PlyCount "86"]
[EventDate "1982.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bd7 6. c3 Nf6 7. Re1 g6 8. d4 Nb8 9. Nbd2 Bg7 10. Nf1 0-0 11. d5 Qe7 12. Bxd7 Nbxd7 13. Ng3 Kh8 14. Bd2 Ng8 15. c4 Bh6 16. h4 Bxd2 17. Qxd2 f5 18. exf5 gxf5 19. Ng5 f4 20. N3e4 Ngf6 21. Ne6 Nxe4 22. Rxe4 Rg8 23. Qc3 Nf8 24. Ng5 Ng6 25. Rae1 Raf8 26. g3 Rf5 27. Kh2 Rxg5 28. hxg5 Qxg5 29. Qf3 Ne7 30. Qc3 Nf5 31. Kg1 fxg3 32. f3 Qh5 33. R1e2 Nh4 34. Rf4 g2 35. Rxh4 Qxh4 36. Rxg2 Qd4+ 37. Qxd4 Rxg2+ 38. Kxg2 exd4 39. Kf2 h5 40. b4 h4 41. a4 h3 42. c5 h2 43. Kg2 d3 0-1

[Event "Reykjavik Open"]
[Site "Reykjavik"]
[Date "1982.02.??"]
[Round "?"]
[White "Gudmundsson, Elvar"]
[Black "Kogan, Boris Markovich"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2320"]
[PlyCount "117"]
[EventDate "1982.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. cxd5 exd5 8. Bd3 c6 9. 0-0 Ne8 10. Bxe7 Qxe7 11. Qc2 g6 12. Rab1 a5 13. a3 f5 14. b4 Nef6 15. Qb2 b6 16. Rfd1 Bb7 17. Rbc1 Rfb8 18. Ne2 axb4 19. axb4 Ra4 20. Rb1 Rba8 21. Nc3 Ra3 22. b5 c5 23. dxc5 bxc5 24. Ra1 R3a5 25. Be2 Qd8 26. Ng5 Qb6 27. h4 h6 28. Nh3 Kh7 29. Rxa5 Qxa5 30. Nf4 Qb4 31. Qxb4 cxb4 32. Ncxd5 g5 33. hxg5 hxg5 34. Nxf6+ Nxf6 35. Ne6 b3 36. Rb1 Ne4 37. Nd4 Nd2 38. Rxb3 Nxb3 39. Nxb3 Kg6 40. Bf3 Bxf3 41. gxf3 Kf6 42. Kg2 Ke5 43. Nd4 Ra2 44. Nc6+ Kd6 45. Nd4 Ke5 46. Nc6+ Kf6 47. Kg3 Rb2 48. Nd4 Ke5 49. Nc6+ Kd5 50. Ne7+ Ke5 51. Nc6+ Ke6 52. Nd4+ Kf6 53. b6 Ke5 54. Nc6+ Kd5 55. Nd4 f4+ 56. Kg4 Rxf2 57. b7 Rb2 58. Nc2 Rxb7 59. exf4 1/2-1/2

[Event "Reykjavik Open"]
[Site "Reykjavik"]
[Date "1982.02.??"]
[Round "?"]
[White "Gurevich, Dmitry"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[ECO "D61"]
[WhiteElo "2470"]
[PlyCount "89"]
[EventDate "1982.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. Qc2 c5 8. Rd1 Qa5 9. cxd5 Nxd5 10. Bxe7 Nxe7 11. Bd3 g6 12. 0-0 cxd4 13. Nxd4 Nf6 14. Ne4 Nfd5 15. a3 Bd7 16. b4 Qb6 17. Nc5 Rfd8 18. e4 Nf4 19. Bc4 Be8 20. Qc1 Nh5 21. Qg5 Nc6 22. Nb5 Rxd1 23. Rxd1 Nxb4 24. Rd6 Nc6 25. Nxe6 fxe6 26. Rxe6 Kh8 27. g4 Qd8 28. Rxe8+ Qxe8 29. Nd6 Ne5 30. Kg2 Qf8 31. Qxe5+ Qf6 32. gxh5 Qxe5 33. Nf7+ Kg7 34. Nxe5 Rc8 35. f4 b5 36. Bxb5 Rc2+ 37. Kf1 Rd2 38. hxg6 hxg6 39. Be8 g5 40. f5 Rd4 41. Nd7 Rxe4 42. f6+ Kh7 43. f7 Rf4+ 44. Kg2 Kg7 45. f8Q+ 1-0

[Event "Reykjavik Open"]
[Site "Reykjavik"]
[Date "1982.02.??"]
[Round "?"]
[White "Helmers, Knut Jaran"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2430"]
[PlyCount "216"]
[EventDate "1982.02.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "ISL"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 c6 3. c4 e6 4. Qc2 Nf6 5. g3 dxc4 6. Qxc4 b5 7. Qb3 a5 8. Bg2 a4 9. Qc2 Bb7 10. 0-0 Na6 11. Nc3 Be7 12. Bg5 0-0 13. Rad1 Nd7 14. Bc1 Qb6 15. e4 c5 16. d5 e5 17. Bh3 Ndb8 18. Be3 Bd6 19. Nh4 g6 20. f4 Kh8 21. f5 g5 22. Bxg5 c4+ 23. Kh1 f6 24. Bh6 Rg8 25. Qe2 Bf8 26. Bc1 b4 27. Qh5 Rg7 28. Ne2 Kg8 29. g4 Nc5 30. Ng3 Nbd7 31. Nf3 Nd3 32. Rxd3 cxd3 33. g5 Rc8 34. Qh4 Rxc1 35. Rxc1 Qe3 36. Rf1 fxg5 37. Qh5 Nf6 38. Qh6 d2 39. Qxf6 d1Q 40. Qe6+ Kh8 41. Qf6 Be7 42. Qxe5 Qexf3+ 43. Bg2 Qdxf1+ 44. Nxf1 Qf4 45. Qe6 Qd6 46. e5 Qxe6 47. dxe6 Bc8 48. Bd5 Bc5 49. f6 Rc7 50. Ng3 Bxe6 51. Bxe6 Bd4 52. f7 Rc1+ 53. Kg2 Bc5 54. Ne4 Rg1+ 55. Kf3 Be7 56. Bd7 Rf1+ 57. Kg3 Rxf7 58. Bxa4 Kg7 59. Bb3 Rf5 60. e6 h5 61. Kg2 Rf4 62. Ng3 Kf8 63. Nxh5 Rd4 64. Ng3 Rd2+ 65. Kh3 Rxb2 66. Nf5 Bf6 67. Kg3 Rd2 68. h3 Bd8 69. Kf3 Rd3+ 70. Kg4 Bf6 71. Bc4 Rd1 72. Bb3 Rf1 73. Ne3 Rf4+ 74. Kg3 Rd4 75. Kg2 Be7 76. Nf5 Rd2+ 77. Kf3 Rd3+ 78. Kg4 Bd8 79. Bc2 Rd2 80. Bb3 Rg2+ 81. Kf3 Rg1 82. Ne3 Be7 83. Kf2 Rh1 84. Kg2 Re1 85. Kf2 Rc1 86. Nf5 Rc3 87. Kg2 Bd8 88. Ba4 Rc5 89. Nd4 Rd5 90. Nf3 Bc7 91. Bb3 Rd3 92. Kf2 Bf4 93. Ke2 Re3+ 94. Kf2 Rc3 95. Kg2 Rd3 96. Bc4 Re3 97. Kf2 Rc3 98. Bb3 Ke7 99. Kg2 Kf6 100. Kf2 Bd6 101. Kg2 Bc5 102. Ne1 Kf5 103. Nf3 Kf4 104. Ne1 Re3 105. Nc2 Re2+ 106. Kf1 Re4 107. Ne1 Kg3 108. Nd3 Be7 0-1

