[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Ivanov, Vladimir Ivanovich"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2460"]
[BlackElo "2375"]
[PlyCount "33"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. Re1 Nf6 6. e5 Ng4 7. Bxc6 dxc6 8. Nc3 0-0 9. d3 Nh6 10. Ne4 b6 11. Ng3 Nf5 12. Nxf5 Bxf5 13. Bf4 Qd5 14. Qe2 h6 15. h3 Rad8 16. b3 Qd7 17. a4 1/2-1/2

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Kochyev, Alexander"]
[Result "0-1"]
[ECO "E67"]
[WhiteElo "2375"]
[BlackElo "2435"]
[PlyCount "60"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. e3 c6 9. b3 Re8 10. Bb2 e4 11. Nd2 d5 12. cxd5 cxd5 13. f3 exf3 14. Qxf3 Nb6 15. e4 Bg4 16. Qf4 dxe4 17. Ncxe4 Bf5 18. Nxf6+ Bxf6 19. g4 Bg5 20. Qf3 Re3 21. Qxb7 Re7 22. Qf3 Re3 23. Qb7 Re7 24. Qa6 Bc8 25. Qa5 Re2 26. Rad1 Bxg4 27. Ne4 Rxb2 28. Nxg5 Bxd1 29. Qe5 Rxg2+ 30. Kxg2 Qd5+ 0-1

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Petrov, Anton"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2375"]
[BlackElo "2375"]
[PlyCount "39"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 d5 3. Bg5 c6 4. e4 fxe4 5. f3 exf3 6. Nxf3 Bg4 7. h3 Bxf3 8. Qxf3 Nf6 9. Bd3 Nbd7 10. 0-0-0 Qc7 11. Rhe1 0-0-0 12. Bf4 Qb6 13. Re6 g6 14. Nb5 Ne8 15. Be2 a6 16. Qa3 g5 17. Na7+ Qxa7 18. Rxc6+ bxc6 19. Bxa6+ Qb7 20. Qa5 1-0

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Potkin, Alexey V"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2375"]
[BlackElo "2325"]
[PlyCount "46"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. g3 c5 4. Nf3 Nc6 5. Bg2 Nf6 6. 0-0 Be7 7. Nc3 0-0 8. Bg5 dxc4 9. dxc5 Qxd1 10. Rfxd1 Bxc5 11. Rac1 e5 12. Bxf6 gxf6 13. Nd5 Kg7 14. Rxc4 Bb6 15. Nxb6 axb6 16. a3 Be6 17. Rcc1 Rfd8 18. e3 Na5 19. Nh4 Nb3 20. Rb1 Nd2 21. Rbc1 Nb3 22. Rb1 Nd2 23. Rbc1 Nb3 1/2-1/2

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Shaposhnikov, Evgeny"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2375"]
[BlackElo "2370"]
[PlyCount "81"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bc3 c6 8. Bg2 0-0 9. 0-0 d5 10. Nbd2 Nbd7 11. Re1 Rc8 12. e4 Bb7 13. Rc1 c5 14. exd5 exd5 15. Ne5 cxd4 16. Bxd4 Nc5 17. cxd5 Bxd5 18. Ndf3 Ne6 19. Bb2 Rxc1 20. Qxc1 Qa8 21. Qa1 Bc5 22. Nh4 Ng5 23. Bc1 Nfe4 24. Be3 Bb4 25. Rc1 Bd2 26. Nf5 Bxe3 27. Nxe3 Be6 28. g4 f6 29. h4 Nh3+ 30. Bxh3 Nxf2 31. Bg2 Qd8 32. Nc6 Qd6 33. Qd4 Qg3 34. Nf5 Nh3+ 35. Kf1 Qh2 36. Rc3 Nf4 37. Qf2 Bxf5 38. gxf5 Nxg2 39. Qxg2 Qxh4 40. Ne7+ Kh8 41. Ng6+ 1-0

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Novikov, Mikhail V"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "E66"]
[WhiteElo "2390"]
[BlackElo "2375"]
[PlyCount "92"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[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 Bg7 4. Nf3 0-0 5. g3 d6 6. Bg2 Nc6 7. 0-0 a6 8. d5 Na5 9. Nd2 c5 10. Qc2 Rb8 11. b3 b5 12. Bb2 bxc4 13. bxc4 Bh6 14. f4 e5 15. Rae1 exf4 16. gxf4 Nh5 17. e3 Bg7 18. Nd1 Bf5 19. e4 Rxb2 20. Nxb2 Bd4+ 21. Kh1 Qh4 22. Qd3 Nxf4 23. Qg3 Nxg2 24. Kxg2 Bh3+ 25. Qxh3 Qg5+ 26. Kh1 Qxd2 27. Nd1 Nxc4 28. Qg2 Qxg2+ 29. Kxg2 Nd2 30. Rf4 c4 31. Ne3 c3 32. Nc2 Be5 33. Rf2 Rb8 34. a3 a5 35. Rfe2 Rb2 36. Rc1 Bf4 37. Nd4 Nxe4 38. Rcc2 Be5 39. Rxe4 Bxd4 40. Re8+ Kg7 41. Rxb2 cxb2 42. Rb8 Kf6 43. Kf3 Ke5 44. Rb5 Bc3 45. Rb3 Kxd5 46. Ke2 Kc4 0-1

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Shushpanov, Vladimir Fedorovich"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "E84"]
[WhiteElo "2385"]
[BlackElo "2375"]
[PlyCount "81"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[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 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. Nc1 e5 10. d5 Nd4 11. N1e2 Nxe2 12. Bxe2 Nh5 13. 0-0-0 f5 14. c5 Nf4 15. Bf1 Qe7 16. Kb1 Kh8 17. cxd6 cxd6 18. g3 Nh5 19. exf5 gxf5 20. f4 exf4 21. gxf4 Nf6 22. Bd3 b5 23. Bd4 b4 24. Ne2 Nxd5 25. Bc4 Nf6 26. Rhg1 Ne4 27. Qd3 Bf6 28. Rde1 Bb7 29. Ka1 Bxd4 30. Nxd4 Qf6 31. Ne6 d5 32. Bxd5 Bxd5 33. Qxd5 Rfe8 34. Ng5 Nxg5 35. fxg5 Rxe1+ 36. Rxe1 Qg7 37. Qxf5 Rf8 38. Qc5 Rb8 39. h4 b3 40. axb3 h5 41. Re7 1-0

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Sotsky, Alexander"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "B32"]
[WhiteElo "2305"]
[BlackElo "2375"]
[PlyCount "6"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 1/2-1/2

[Event "St Petersburg White Nights op"]
[Site "St Petersburg"]
[Date "1997.??.??"]
[Round "?"]
[White "Yudasin, Leonid"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B03"]
[WhiteElo "2600"]
[BlackElo "2375"]
[PlyCount "51"]
[EventDate "1997.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 Nc6 2. Nf3 Nf6 3. e5 Nd5 4. c4 Nb6 5. d4 d6 6. exd6 exd6 7. Be2 Be7 8. 0-0 0-0 9. h3 Bf6 10. Nc3 Bf5 11. Bf4 Re8 12. Rc1 h6 13. b3 a6 14. Qd2 d5 15. c5 Nc8 16. Be3 N8e7 17. Nh2 Be6 18. g4 g5 19. Bf3 Ng6 20. Ne2 Bg7 21. Bg2 Re7 22. f4 gxf4 23. Nxf4 Nxf4 24. Rxf4 Qe8 25. Bf2 Rd8 26. Bh4 1-0

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Dolmatov, Sergey"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "2610"]
[BlackElo "2370"]
[PlyCount "55"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 d4 11. Ne2 0-0 12. 0-0 Qd5 13. c4 dxc3 14. Nxc3 Qa5 15. Bf4 Bg4 16. Qb1 h6 17. h3 Be6 18. Nb5 Nd5 19. Bg3 Rad8 20. Bd6 Rfe8 21. b4 Qa4 22. Bg3 Re7 23. Nd6 Nc3 24. Qb2 Qb3 25. Qxb3 Bxb3 26. Rfc1 Na2 27. Re1 Be6 28. Be4 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Galdunts, Sergey"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "B88"]
[WhiteElo "2465"]
[BlackElo "2425"]
[PlyCount "59"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 e6 6. Bc4 Nf6 7. 0-0 a6 8. a4 Be7 9. Be3 0-0 10. Kh1 Qc7 11. Ba2 b6 12. f4 Bb7 13. Qe1 Nxd4 14. Bxd4 e5 15. fxe5 dxe5 16. Qg3 Nd7 17. Nd5 Bxd5 18. Bxd5 Rac8 19. Bc3 b5 20. axb5 axb5 21. Ra6 b4 22. Rc6 Qd8 23. Rxc8 Qxc8 24. Bxe5 Nxe5 25. Qxe5 Bf6 26. Qf4 Qe8 27. Qd6 Qb5 28. Rf2 Qa4 29. Rf1 Qxc2 30. Qxb4 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Ivanov, Sergey"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2440"]
[BlackElo "2425"]
[PlyCount "59"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 a6 6. e3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 Nbd7 10. e4 b4 11. Na4 Nxe4 12. Qc2 Nd6 13. Ne5 Nxe5 14. Bxe5 Nb5 15. Rfe1 Bd6 16. Nc5 Bxe5 17. Nxb7 Qxd4 18. Qc6+ Ke7 19. Bxb5 axb5 20. Rad1 Qb6 21. Rd7+ Ke8 22. Rd8+ Ke7 23. Qd7+ Kf6 24. Rxa8 Bxh2+ 25. Kf1 Rxa8 26. Nd8 Rxd8 27. Qxd8+ Kg6 28. Qd3+ f5 29. Qd7 Kf6 30. g3 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Khropov, Boris"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2205"]
[BlackElo "2425"]
[PlyCount "69"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 d6 7. Be3 g6 8. Kh1 Bg7 9. f4 e5 10. fxe5 Ng4 11. Bg1 Nxe5 12. Be2 0-0 13. Nc3 Nbc6 14. Nd5 Nxd4 15. Bxd4 Be6 16. Bb6 Qd7 17. c4 Rac8 18. Rc1 Bxd5 19. exd5 Qe7 20. Bf2 Nd7 21. b4 Rfe8 22. Bg4 f5 23. Re1 Be5 24. Bf3 g5 25. Qd3 g4 26. Bd1 Rf8 27. c5 Qg5 28. Rc4 Nf6 29. Bg1 Qh4 30. Rxe5 dxe5 31. Qxf5 Rce8 32. Bxg4 Qe1 33. Qg5+ Kh8 34. Be6 Nxd5 35. Rg4 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Lugovoi, Aleksei"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2315"]
[BlackElo "2425"]
[PlyCount "53"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 d6 4. Nh3 c6 5. c3 g6 6. Qb3 e5 7. Nd2 Bg7 8. 0-0 Qe7 9. e4 Na6 10. Re1 exd4 11. cxd4 d5 12. e5 Ne4 13. Nf1 h6 14. Nf4 Kf7 15. Rxe4 fxe4 16. Bxe4 g5 17. Ng6 Qb4 18. Nxh8+ Bxh8 19. Qf3+ Ke7 20. Bg6 Be6 21. Be3 Rf8 22. Qh5 Bg7 23. f4 g4 24. Rd1 c5 25. f5 cxd4 26. Bxh6 d3 27. Be3 1-0

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Minasian, Artashes"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2530"]
[BlackElo "2370"]
[PlyCount "85"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 Bg4 3. g3 Nd7 4. Bg2 Ngf6 5. Nf3 e6 6. 0-0 Bd6 7. c4 0-0 8. d3 c5 9. Nbd2 Re8 10. Qc2 Rc8 11. Rae1 Qc7 12. e3 h6 13. Nh4 dxc4 14. dxc4 g5 15. Nhf3 Bf5 16. e4 Bg6 17. Nb1 a6 18. Qc3 e5 19. Nfd2 Bf8 20. Qc2 Rcd8 21. Qc1 Nb8 22. f4 gxf4 23. gxf4 Nc6 24. f5 Bh5 25. Nc3 Nb4 26. Re3 Rd3 27. Qe1 Qd8 28. Nd5 Kh8 29. Rg3 Nc2 30. Qf2 Rxg3 31. Qxg3 Nd4 32. Bxd4 exd4 33. e5 Nxd5 34. cxd5 Qg5 35. Qxg5 hxg5 36. Re1 b5 37. Kf2 Bg7 38. f6 Bh6 39. d6 g4 40. Nf1 Bf4 41. d7 Rd8 42. Bc6 d3 43. e6 1/2-1/2

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Glek, Igor Vladimirovich"]
[Result "0-1"]
[ECO "A87"]
[WhiteElo "2370"]
[BlackElo "2520"]
[PlyCount "54"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. 0-0 0-0 6. b3 d6 7. Bb2 Qe8 8. c4 Na6 9. Nbd2 e5 10. dxe5 Ng4 11. Qc2 dxe5 12. e4 Nb4 13. Qc3 Nc6 14. exf5 gxf5 15. Rfe1 Bf6 16. Nh4 f4 17. Bd5+ Kh8 18. Nhf3 Qh5 19. Ne4 Bg7 20. Ba3 Bd7 21. Bxf8 Rxf8 22. Bxc6 Bxc6 23. b4 Nxf2 24. Kxf2 fxg3+ 25. hxg3 Qh2+ 26. Kf1 Bxe4 27. Rxe4 Qxg3 0-1

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Gorbatov, Alexej"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2370"]
[BlackElo "2375"]
[PlyCount "46"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 Nc6 5. d5 Ne5 6. Nxe5 Bxe5 7. e4 Bg7 8. Be2 e6 9. h4 h5 10. Bg5 Qd7 11. Qd2 Ne7 12. 0-0-0 e5 13. f3 a6 14. g4 hxg4 15. fxg4 f6 16. Be3 Ng8 17. g5 f5 18. exf5 gxf5 19. h5 f4 20. Bf2 Qf5 21. h6 Bf8 22. Bd3 Qxg5 23. Rdg1 Bg4 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Maksimenko, Andrei"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2425"]
[BlackElo "2455"]
[PlyCount "31"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[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 b6 4. g3 Ba6 5. b3 d5 6. cxd5 exd5 7. Bg2 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 0-0 10. Nc3 Re8 11. Ne5 Bb7 12. 0-0 Na6 13. Rac1 c5 14. f4 Qc7 15. dxc5 Nxc5 16. Rfd1 1/2-1/2

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Marszalek, Rafal"]
[Result "1-0"]
[ECO "A92"]
[WhiteElo "2370"]
[BlackElo "2265"]
[PlyCount "75"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 e6 2. c4 f5 3. Nf3 Nf6 4. g3 Be7 5. Bg2 0-0 6. 0-0 Ne4 7. Qc2 Bf6 8. d5 Na6 9. Nc3 Nac5 10. Be3 Qe7 11. Nxe4 Nxe4 12. Nd4 Ng5 13. Nb5 d6 14. Nxa7 Bd7 15. dxe6 Nxe6 16. Nb5 c6 17. Nc3 f4 18. Bd2 Be5 19. Ne4 Ng5 20. Nxg5 Qxg5 21. Qb3 Bc8 22. c5+ Kh8 23. cxd6 Bxd6 24. Bb4 Bxb4 25. Qxb4 Bg4 26. Rfe1 fxg3 27. hxg3 Qf5 28. f3 Bh5 29. g4 Qe5 30. gxh5 Qe3+ 31. Kf1 Rf5 32. Qc3 Qf4 33. Red1 Rxh5 34. Rd7 Qg3 35. Rad1 h6 36. Rd8+ Rxd8 37. Rxd8+ Kh7 38. Qd3+ 1-0

[Event "Moscow rapid"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Psakhis, Lev"]
[Result "1/2-1/2"]
[ECO "A70"]
[WhiteElo "2370"]
[BlackElo "2570"]
[PlyCount "73"]
[EventDate "1992.08.??"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "RUS"]
[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 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. e4 a6 8. h3 b5 9. Bd3 Bg7 10. 0-0 c4 11. Bc2 0-0 12. Bf4 Bb7 13. Qd2 Re8 14. Rfe1 Qb6 15. b4 cxb3 16. axb3 Nbd7 17. Be3 Qc7 18. Bd4 Rac8 19. Rac1 Qa5 20. Bb1 Nc5 21. Qb2 b4 22. Na2 Nh5 23. Rc4 Bxd4 24. Rxd4 Qa3 25. Qxa3 bxa3 26. Re3 f5 27. exf5 Rxe3 28. fxe3 Nxb3 29. Rb4 Bxd5 30. fxg6 hxg6 31. Ra4 Kg7 32. Rxa3 Bxf3 33. Rxb3 Bd5 34. Rb6 Rc6 35. Rxc6 Bxc6 36. Nb4 Bb7 37. Kf2 1/2-1/2

[Event "Moscow rapid"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Razuvaev, Yuri S"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2370"]
[BlackElo "2565"]
[PlyCount "94"]
[EventDate "1992.08.??"]
[EventType "swiss (rapid)"]
[EventRounds "9"]
[EventCountry "RUS"]
[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 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+ 7. Bd2 a5 8. 0-0 0-0 9. Nc3 h6 10. Qc2 Re8 11. a3 Bxc3 12. Bxc3 Be4 13. Qb2 d5 14. cxd5 Bxd5 15. Rac1 a4 16. b4 Nc6 17. Ne5 Bxg2 18. Kxg2 Qd5+ 19. Kg1 Nxe5 20. dxe5 Nd7 21. Rfd1 Qb5 22. Rd3 Rac8 23. Rcd1 Nf8 24. Qd2 c5 25. Rd6 cxb4 26. Bxb4 Qxe5 27. Rxb6 Rc4 28. Ra6 Qb5 29. Ra5 Qc6 30. Qd6 Qe4 31. Qd3 Qc6 32. Ra7 Rc2 33. Qf3 Qxf3 34. exf3 Ng6 35. f4 Ra2 36. Rxa4 Ne7 37. Rd7 Nd5 38. Raa7 Nxb4 39. Rxf7 Nd5 40. Rxg7+ Kh8 41. Rh7+ Kg8 42. Rxh6 Re2 43. Kf1 Re4 44. Kg2 Re7 45. Rxe7 Nxe7 46. Kf3 Re1 47. Rh5 Nf5 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Reck, Bruno"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2425"]
[PlyCount "65"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nc3 e5 4. e3 exd4 5. exd4 Nf6 6. Bxc4 Be7 7. Nf3 0-0 8. h3 Nbd7 9. 0-0 Nb6 10. Bb3 c6 11. Re1 Nbd5 12. Bg5 Bf5 13. Ne5 Re8 14. Qf3 Be6 15. Rad1 Qa5 16. Bxf6 Bxf6 17. Ne4 Be7 18. Ng3 Rad8 19. Nh5 Bf8 20. Re4 f6 21. Nd3 Bf7 22. Rh4 Rd6 23. Nc5 Qc7 24. Ng3 b6 25. Nd3 Rde6 26. Rc1 Qd7 27. Ba4 g6 28. Re4 Bh6 29. Rc2 Bg7 30. Rxe6 Rxe6 31. Ne2 Rd6 32. Bb3 Ne7 33. Bxf7+ 1-0

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Samarin, Igor Valerievich"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2370"]
[BlackElo "2390"]
[PlyCount "86"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. Nc3 Nf6 6. Nh3 c6 7. e3 Na6 8. Nf4 Be7 9. Rb1 Nc7 10. d5 0-0 11. h4 Ng4 12. g3 c5 13. Be2 Ne5 14. Bd2 g6 15. b4 b6 16. bxc5 dxc5 17. a4 Ne8 18. Qb3 Ng7 19. a5 bxa5 20. Qa2 Rf6 21. Nb5 Ra6 22. Bc3 Nf7 23. 0-0 Bd7 24. Rfd1 Ne8 25. Qa3 Rc8 26. Ra1 a4 27. Rd2 Rb8 28. Rb2 Rb7 29. Rab1 Bf8 30. Bd1 Ned6 31. Qa2 a3 32. Nxa3 Rxa3 33. Qxa3 Nxc4 34. Qa2 Nxb2 35. Rxb2 Rxb2 36. Bxb2 Bd6 37. Be2 Qb8 38. Ne6 Qb6 39. Qa1 Qb8 40. Bh8 Be5 41. Bxe5 Qxe5 42. Qxa7 Bxe6 43. dxe6 Qxe6 1/2-1/2

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Soloviov, Sergei"]
[Result "1-0"]
[ECO "E84"]
[WhiteElo "2425"]
[BlackElo "2420"]
[PlyCount "91"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 0-0 5. Be3 d6 6. f3 Nc6 7. Nge2 a6 8. Qd2 Rb8 9. h4 h5 10. Nc1 e5 11. d5 Nd4 12. Nb3 Nxb3 13. axb3 c5 14. Be2 Bd7 15. Nd1 Nh7 16. b4 f5 17. exf5 gxf5 18. bxc5 dxc5 19. Bxc5 Re8 20. Bd6 Rc8 21. c5 Qf6 22. Qb4 e4 23. f4 Qd4 24. Qxd4 Bxd4 25. Rc1 Bb5 26. Rh3 Bxe2 27. Kxe2 Nf6 28. Rc4 Bg1 29. Rh1 b5 30. Rc2 Bd4 31. Rd2 Bxc5 32. Bxc5 Rxc5 33. Ne3 Ng4 34. Nxg4 hxg4 35. d6 Kf7 36. d7 Rd8 37. h5 Kg7 38. Rhd1 g3 39. Ke3 Rc6 40. Rd5 Rc2 41. Rxf5 Rxg2 42. h6+ Kg6 43. Rg5+ Kf7 44. h7 Rh2 45. Rg8 Ke7 46. f5 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Wunder, Stefan"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2425"]
[PlyCount "63"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 b6 2. c4 Bb7 3. d5 e6 4. a3 Qh4 5. Nc3 Nf6 6. Nf3 Qxc4 7. e4 Qc5 8. Be3 Qe7 9. Bc4 exd5 10. exd5 Ng4 11. 0-0 Nxe3 12. fxe3 Qc5 13. Qd3 a5 14. Ng5 f6 15. Nge4 Qe7 16. Rf4 Kd8 17. Nb5 d6 18. Nd4 Nd7 19. Rc1 Nc5 20. Nxc5 bxc5 21. Re4 Qf7 22. Nc6+ Kc8 23. Re6 g6 24. Rf1 f5 25. e4 Rg8 26. exf5 gxf5 27. Rxf5 Qg7 28. Qe4 Bxc6 29. dxc6 Kb8 30. Re8+ Ka7 31. Rxa8+ Kxa8 32. Bxg8 1-0

[Event "St Petersburg op"]
[Site "St Petersburg"]
[Date "1992.??.??"]
[Round "?"]
[White "Rothmund, Joachim"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "B23"]
[BlackElo "2425"]
[PlyCount "80"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. f4 Bg7 5. Nf3 d6 6. Be2 Rb8 7. Be3 b5 8. Qd2 b4 9. Nd1 e6 10. 0-0 Nge7 11. Rb1 0-0 12. g4 f5 13. h3 Qa5 14. Ra1 Bd7 15. Bf2 e5 16. fxe5 dxe5 17. Ne3 fxe4 18. dxe4 Nd4 19. Bc4+ Kh8 20. Nxd4 exd4 21. Bh4 Nc6 22. Nd5 Ne5 23. Be2 Be6 24. Bf6 Bxd5 25. Bxg7+ Kxg7 26. exd5 Qb6 27. Qg5 Qd6 28. Rae1 h6 29. Qh4 g5 30. Qg3 Qxd5 31. Rf5 Rxf5 32. gxf5 Kf6 33. Bc4 Qd6 34. h4 Rb7 35. Be6 Rg7 36. h5 g4 37. Kf2 Rg5 38. Re4 Rxh5 39. Rxg4 Nxg4+ 40. Qxg4 Qh2+ 0-1

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Sveshnikov, Evgeny"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2525"]
[BlackElo "2370"]
[PlyCount "78"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Nh6 6. dxc5 Bxc5 7. b4 Bb6 8. Bxh6 gxh6 9. b5 Ne7 10. Bd3 Ng6 11. 0-0 Qc7 12. Re1 0-0 13. a4 Bd7 14. Ra2 f6 15. Bxg6 hxg6 16. Qd3 f5 17. Nbd2 Rfc8 18. Rc2 a6 19. Rec1 axb5 20. axb5 Ra3 21. Qe2 Qc5 22. Nd4 Rca8 23. g4 f4 24. g5 h5 25. N2f3 Kg7 26. Qd2 Rf8 27. Ra2 Ba5 28. Rxa3 Qxa3 29. Qc2 Qe7 30. c4 dxc4 31. Qe4 c3 32. Qxb7 Rf7 33. Qa6 Qb4 34. Kg2 Bd8 35. Nxe6+ Bxe6 36. Qxe6 Ba5 37. Qd5 Rc7 38. Nd4 Rc8 39. Qd7+ Kh8 1-0

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Yudasin, Leonid"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2635"]
[BlackElo "2370"]
[PlyCount "36"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. 0-0 Qc7 7. Nc3 Bd6 8. Kh1 Nc6 9. Nb3 Be7 10. f4 d6 11. Qf3 0-0 12. Be3 b5 13. Rad1 Bb7 14. Qh3 Nb4 15. Nd4 d5 16. e5 Ne4 17. Bxe4 dxe4 18. Nxe6 Qc8 1-0

[Event "Moscow Tal Memorial"]
[Site "Moscow"]
[Date "1992.??.??"]
[Round "?"]
[White "Zakharov, Alexander V"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2365"]
[BlackElo "2370"]
[PlyCount "103"]
[EventDate "1992.08.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "RUS"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 f5 2. d4 Nf6 3. Bg5 e6 4. Nbd2 d5 5. e3 Be7 6. Ne5 Nbd7 7. f4 Nxe5 8. fxe5 Ng4 9. Bxe7 Qxe7 10. Qf3 Qh4+ 11. g3 Qh6 12. Bb5+ c6 13. Bd3 c5 14. Nf1 c4 15. Be2 Qh3 16. b3 c3 17. Rg1 0-0 18. Rd1 Bd7 19. Qg2 Qxg2 20. Rxg2 Nh6 21. h3 Nf7 22. g4 fxg4 23. Rxg4 Nh6 24. Rg1 Nf5 25. Rd3 Rac8 26. Ng3 Nh4 27. Nh5 Ng6 28. Rd1 Be8 29. Bg4 Rc6 30. Ke2 Bf7 31. Rg3 Nh4 32. Nf4 g5 33. Nh5 Bg6 34. Rc1 b5 35. Nf6+ Rxf6 36. exf6 Kf7 37. Kd1 Kxf6 38. Be2 b4 39. Bd3 Bh5+ 40. Ke1 Nf5 41. Rg1 Nxe3 42. a3 bxa3 43. Ra1 Bg6 44. Kf2 Nxc2 45. Bxc2 Bxc2 46. Rxa3 Bf5 47. Rxa7 c2 48. Rc1 Rc3 49. Rb7 Rxh3 50. b4 Rb3 51. Ke2 g4 52. Rb8 0-1

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.07.12"]
[Round "9"]
[White "Nikolaev, Sergej"]
[Black "Paetz, Carsten"]
[Result "1/2-1/2"]
[ECO "D87"]
[WhiteElo "2450"]
[PlyCount "29"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 0-0 9. 0-0 Nc6 10. Be3 Bg4 11. f3 Na5 12. Bxf7+ Rxf7 13. fxg4 Rxf1+ 14. Kxf1 Qd6 15. e5 1/2-1/2

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.??.??"]
[Round "?"]
[White "Cherepkov, Alexander V"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "A88"]
[WhiteElo "2425"]
[BlackElo "2450"]
[PlyCount "65"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 f5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. 0-0 0-0 6. c4 d6 7. Nc3 c6 8. b3 a5 9. Bb2 Na6 10. Qd2 Qc7 11. d5 Nc5 12. Nd4 e5 13. dxe6 Bxe6 14. Nxe6 Nxe6 15. Rad1 Rad8 16. Na4 Nc5 17. Nxc5 dxc5 18. Qc2 Ng4 19. h3 Nh6 20. e3 Rde8 21. Rd2 Nf7 22. Ba3 Qe7 23. Rfd1 Rd8 24. Rxd8 Rxd8 25. Rxd8+ Nxd8 26. Qd2 Ne6 27. Qxa5 g5 28. Qa8+ Kf7 29. Qc8 f4 30. Bf3 Be5 31. Bh5+ Kf6 32. Qh8+ Kf5 33. e4+ 1-0

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "11"]
[White "Dragomarezkij, Evgeni"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2455"]
[BlackElo "2450"]
[PlyCount "62"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 0-0 8. Qc2 Nbd7 9. Nf3 Re8 10. 0-0 Nf8 11. a3 Be6 12. b4 Rc8 13. Rfc1 N6d7 14. Bxe7 Qxe7 15. Na4 Bg4 16. Nd2 Qg5 17. Nc5 Nxc5 18. bxc5 Bh3 19. Bf1 Re6 20. Nf3 Qh5 21. Ne5 Bf5 22. Be2 Qg5 23. Bd3 Bxd3 24. Qxd3 Ng6 25. Nxg6 Qxg6 26. Qf1 Qh5 27. Rab1 Rh6 28. h3 Rg6 29. Kh2 Rc7 30. Qa6 Qg5 31. Rg1 b5 1-0

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.??.??"]
[Round "?"]
[White "Dukhov, Alexander"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "A89"]
[BlackElo "2450"]
[PlyCount "57"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. g3 d6 4. Nf3 g6 5. Bg2 Bg7 6. 0-0 0-0 7. Nc3 Nc6 8. d5 Na5 9. Qc2 c5 10. b3 a6 11. Bb2 Rb8 12. Nd2 e5 13. dxe6 Bxe6 14. Rad1 Nc6 15. Nf3 h6 16. e4 fxe4 17. Nxe4 Bf5 18. Nh4 Nxe4 19. Bxg7 Kxg7 20. Bxe4 Bxe4 21. Qxe4 Qf6 22. f4 Nd4 23. Nf3 Rfe8 24. Qd3 Nxf3+ 25. Rxf3 Re6 26. f5 gxf5 27. Rxf5 Qe7 28. Rdf1 Re8 29. Qf3 1-0

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "5"]
[White "Kaminski, Marcin"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2305"]
[BlackElo "2450"]
[PlyCount "39"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. g3 Nf6 7. Bg2 Bd7 8. 0-0 Be7 9. a4 0-0 10. Nb3 Rc8 11. f4 Na5 12. Nxa5 Qxa5 13. Kh1 Bc6 14. Qe2 d5 15. e5 Nd7 16. Be3 Qb4 17. Qd2 Bc5 18. Bxc5 Nxc5 19. b3 Rfd8 20. Ne4 1/2-1/2

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Karagodin, Vladimir A"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "2450"]
[PlyCount "42"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3 e6 6. Nb5 Na6 7. dxc5 Bxc5 8. c3 0-0 9. a4 Bd7 10. a5 Qd8 11. Ne5 Ne4 12. Nxd7 Qxd7 13. Bd3 f5 14. 0-0 Be7 15. c4 Bf6 16. cxd5 e5 17. Bg3 Nac5 18. Be2 a6 19. Na3 f4 20. Bg4 Qc7 21. d6 Qc6 1/2-1/2

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.??.??"]
[Round "?"]
[White "Keck, Ingolf"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A86"]
[BlackElo "2450"]
[PlyCount "70"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 0-0 6. Nh3 e6 7. 0-0 d6 8. Bg5 h6 9. Bd2 e5 10. dxe5 dxe5 11. Qc2 c6 12. Rad1 Qe7 13. Kh1 g5 14. f3 Be6 15. b3 Na6 16. Nf2 Nd7 17. e4 f4 18. g4 h5 19. gxh5 Qf7 20. h6 Bxh6 21. Ng4 Qh5 22. Be1 Bxg4 23. fxg4 Qxg4 24. Bf3 Qh3 25. Qe2 Nf6 26. Rg1 Kh8 27. Rd6 Rad8 28. Rxd8 Rxd8 29. Bf2 g4 30. Rxg4 Rd1+ 31. Qxd1 Nxg4 32. Qd8+ Kh7 33. Qd7+ Bg7 34. Qf5+ Kh6 35. Qe6+ Bf6 0-1

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Knezevic, Milorad"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2390"]
[BlackElo "2430"]
[PlyCount "107"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 Qb6 5. Qc1 Nh5 6. Bg3 cxd4 7. exd4 Nc6 8. c3 Be7 9. Nbd2 0-0 10. Bd3 Qd8 11. Qc2 g6 12. Nc4 d6 13. 0-0 f5 14. h3 Nxg3 15. fxg3 Bf6 16. Rfe1 Qc7 17. Qb3 Kh8 18. Qa3 Rd8 19. Ne3 e5 20. Nd5 Qf7 21. Nxf6 Qxf6 22. dxe5 dxe5 23. Bb5 e4 24. Bxc6 bxc6 25. Nd4 Bd7 26. Rad1 Be8 27. Kh2 Bf7 28. Qc5 Rd6 29. a4 Rad8 30. Qxa7 h5 31. a5 h4 32. gxh4 R8d7 33. Qc5 Rd5 34. Qf8+ Kh7 35. Ra1 Rd8 36. Qa3 Qe5+ 37. Kh1 c5 38. Nf3 Qg3 39. Ng5+ Kg7 40. Nxf7 Kxf7 41. Qb3 Kg7 42. Rad1 Rd2 43. Rg1 e3 44. Rde1 f4 45. Qb7+ Kh6 46. Qe7 R8d6 47. b4 cxb4 48. cxb4 Rxg2 49. Rxg2 Qxe1+ 50. Rg1 Qd2 51. h5 Qd5+ 52. Kh2 g5 53. h4 Qa2+ 54. Rg2 1-0

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "7"]
[White "Kveinys, Aloyzas"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B44"]
[WhiteElo "2435"]
[BlackElo "2450"]
[PlyCount "81"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 Be7 9. Be2 b6 10. Be3 Nb8 11. 0-0 Bb7 12. f3 Nbd7 13. Qd2 0-0 14. Rfd1 Rc8 15. Bf1 Re8 16. Qf2 Qc7 17. Rac1 Qb8 18. Kh1 Bd8 19. Bd4 Bc7 20. Qg1 Kh8 21. b4 Ba8 22. Rb1 d5 23. exd5 exd5 24. c5 b5 25. Nc2 Re6 26. g3 Ne5 27. Qf2 Rce8 28. Bh3 R6e7 29. Rd2 Bb7 30. Re1 Bc8 31. Bxc8 Qxc8 32. Bxe5 Bxe5 33. Nxd5 Nxd5 34. Rxd5 Bxg3 35. Qxg3 Rxe1+ 36. Nxe1 Qe6 37. Rd6 Qe2 38. h4 h6 39. Ng2 Qxa2 40. Kh2 Re2 41. c6 1-0

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "6"]
[White "Nikolaev, Sergej"]
[Black "Barwinski, Dionizy"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2450"]
[BlackElo "2205"]
[PlyCount "83"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[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. Bd2 Qe7 5. g3 0-0 6. Bg2 d5 7. 0-0 dxc4 8. Qc2 Nbd7 9. Qxc4 Bxd2 10. Nbxd2 c6 11. Qc3 Nd5 12. Qb3 e5 13. e4 N5b6 14. a4 exd4 15. Nxd4 a5 16. Rfe1 Qd8 17. Qc3 Ne5 18. N2b3 Re8 19. f4 Ng4 20. h3 Nf6 21. g4 Qc7 22. e5 Nfd5 23. Qg3 Nc4 24. Rac1 Ncb6 25. Nb5 Qe7 26. Nd6 Rd8 27. Nc5 f6 28. Be4 fxe5 29. fxe5 Rb8 30. Rf1 Nd7 31. Nxc8 Rdxc8 32. Nxd7 Qxd7 33. Bf5 Qe7 34. Bxc8 Rxc8 35. Rce1 Nc7 36. Qc3 Qh4 37. e6 Nd5 38. Qf3 Nf6 39. e7 Re8 40. Re5 h5 41. Qb3+ Kh7 42. Rxf6 1-0

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Bebchuk, Evgeni"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2450"]
[BlackElo "2335"]
[PlyCount "73"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d5 6. cxd5 exd5 7. Bg2 Bb4+ 8. Bd2 Bd6 9. 0-0 0-0 10. Nc3 Nbd7 11. Rc1 Re8 12. Bf4 Qe7 13. Bxd6 Qxd6 14. Qc2 Re7 15. Rfd1 Rc8 16. e3 g6 17. Qb2 c6 18. b4 Bc4 19. b5 a6 20. bxc6 Rxc6 21. Nd2 b5 22. e4 dxe4 23. Ndxe4 Qb8 24. Nd2 Rc8 25. Nxc4 Rxc4 26. a4 Nb6 27. axb5 a5 28. Qa3 Rec7 29. Bc6 Qa7 30. d5 Rb4 31. d6 Rc8 32. Na2 Ra4 33. Qb2 Nfd7 34. Re1 Rd8 35. Re7 Rc4 36. Rce1 Qb8 37. Rxf7 1-0

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Belov, Igor"]
[Result "0-1"]
[ECO "A65"]
[WhiteElo "2430"]
[BlackElo "2435"]
[PlyCount "60"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 c5 7. Nge2 Nc6 8. d5 Ne5 9. Ng3 e6 10. Be2 exd5 11. cxd5 a6 12. a4 Bd7 13. 0-0 b5 14. axb5 axb5 15. Rxa8 Qxa8 16. Bxb5 Bxb5 17. Nxb5 Qa6 18. Nc3 Rb8 19. Qc2 Qd3 20. Qf2 Nc4 21. Nd1 Nxd5 22. exd5 Nxe3 23. Nxe3 Rxb2 24. Rd1 Qb3 25. Rd2 Rb1+ 26. Nef1 Bd4 27. Rxd4 cxd4 28. Qxd4 Rd1 29. Qe4 Qb6+ 30. Kh1 Qf2 0-1

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "8"]
[White "Nikolaev, Sergej"]
[Black "Bogdanovich, Grigory Grigorievic"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2450"]
[BlackElo "2355"]
[PlyCount "123"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[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 e6 4. e3 f5 5. Bd3 Bd6 6. b3 Qf6 7. Bb2 Nd7 8. Qc2 Ne7 9. Nbd2 0-0 10. h3 e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Bxe5 Qxe5 14. 0-0 Be6 15. Nf3 Qf6 16. Nd4 dxc4 17. bxc4 c5 18. Nxe6 Qxe6 19. Rab1 b6 20. Rfd1 Ng6 21. Be2 Rae8 22. Bf3 Kh8 23. g3 Ne5 24. Bd5 Qc8 25. Rd2 Nd7 26. Qa4 Qc7 27. Rbd1 Nf6 28. Bg2 Re7 29. Rd6 h6 30. Qc2 Rd7 31. Rxd7 Nxd7 32. Rd5 g6 33. Qd3 Nf6 34. Rd6 Qe7 35. g4 fxg4 36. hxg4 Rg8 37. Bf3 Kh7 38. Kg2 Rg7 39. a4 Nd7 40. Qd5 Nf6 41. Qc6 Nd7 42. Re6 Qg5 43. Qd5 Qh4 44. Rc6 Nf8 45. a5 Rd7 46. Qe5 Qd8 47. Bd5 b5 48. Rf6 bxc4 49. Qf4 Rg7 50. Be4 Kg8 51. Rxf8+ Qxf8 52. Bd5+ Rf7 53. Qf6 Qg7 54. Qe7 Qf8 55. Qxa7 c3 56. Bxf7+ Qxf7 57. Qxc5 Qb7+ 58. Kg3 Qb8+ 59. f4 Qb2 60. a6 c2 61. a7 c1Q 62. a8Q+ 1-0

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Borisenko, Andrei"]
[Result "1-0"]
[ECO "E83"]
[WhiteElo "2450"]
[PlyCount "89"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Re8 9. h4 h5 10. Nc1 e5 11. d5 Nd4 12. Nb3 c5 13. dxc6 bxc6 14. Nxd4 exd4 15. Bxd4 d5 16. cxd5 cxd5 17. e5 Nd7 18. f4 f6 19. e6 Rxe6+ 20. Be2 Bh6 21. 0-0 Bb7 22. Bf3 Ne5 23. Na4 Bc6 24. Nc5 Rd6 25. Qc2 Bxf4 26. Bxh5 Bg3 27. Bxg6 Bxh4 28. Bxe5 fxe5 29. Bf7+ Kg7 30. Ne6+ Rxe6 31. Bxe6 Qb6+ 32. Kh2 Bf6 33. Rac1 Rh8+ 34. Bh3 Bb5 35. Qb3 Qd6 36. Rf2 e4+ 37. Kh1 d4 38. Rfc2 d3 39. Rc7+ Kh6 40. R1c5 e3 41. Qf7 Be5 42. Re7 Qxe7 43. Qxe7 Re8 44. Qh4+ Kg6 45. Qe4+ 1-0

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Bragin, Alexander"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2450"]
[PlyCount "53"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Nge2 e5 7. Bg5 c6 8. d5 h6 9. Be3 cxd5 10. cxd5 Ne8 11. g4 f5 12. gxf5 gxf5 13. exf5 Bxf5 14. Ng3 Bg6 15. Be2 Nd7 16. Qd2 Qh4 17. 0-0 Ndf6 18. Kh1 Nh5 19. Nxh5 Bxh5 20. Rf2 a6 21. Rg1 Rc8 22. Rfg2 Rxf3 23. Bxh6 Rc7 24. Bxg7 Nxg7 25. Qh6 Rg3 26. Bxh5 Rcxc3 27. Bf7+ 1-0

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Golovin, Leonid"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2450"]
[BlackElo "2360"]
[PlyCount "43"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 Qxb6 6. Nc3 d6 7. e4 g6 8. a4 Bg7 9. a5 Qc7 10. Be2 0-0 11. Nf3 e6 12. 0-0 exd5 13. exd5 Bb7 14. Bf4 Re8 15. Qb3 Ne4 16. Qa4 Bc6 17. dxc6 Nxc3 18. bxc3 Rxe2 19. Rfd1 Re6 20. Ng5 Rf6 21. Qc4 Nxc6 22. Bxd6 1/2-1/2

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Kiselev, Sergey"]
[Result "0-1"]
[ECO "E41"]
[WhiteElo "2430"]
[BlackElo "2510"]
[PlyCount "68"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. 0-0 e5 9. d5 Ne7 10. Qc2 0-0 11. Ne1 h6 12. g3 Bh3 13. Ng2 Nd7 14. f4 f5 15. Bd2 e4 16. Be2 Nf6 17. Rfb1 b6 18. a4 Rc8 19. a5 bxa5 20. Qa2 Rc7 21. Qxa5 Bg4 22. Bxg4 Nxg4 23. Rb2 Nc8 24. Rb8 Qd7 25. Rab1 Nb6 26. Rxf8+ Kxf8 27. Qa6 Qc8 28. Qa2 Qe8 29. Nh4 Qh5 30. h3 Nf6 31. Be1 Kg8 32. Ra1 Kh7 33. Rb1 Rd7 34. Ra1 g5 0-1

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "10"]
[White "Nikolaev, Sergej"]
[Black "Kupreichik, Viktor D"]
[Result "0-1"]
[ECO "E89"]
[WhiteElo "2450"]
[BlackElo "2460"]
[PlyCount "72"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. Be3 0-0 7. Nge2 c6 8. d5 cxd5 9. cxd5 Ne8 10. g4 Bh6 11. Bxh6 Qh4+ 12. Ng3 Qxh6 13. Qd2 Qh4 14. 0-0-0 a6 15. Bd3 b5 16. Kb1 Nd7 17. Rc1 Nc5 18. Bc2 Bd7 19. b4 Nb7 20. a3 a5 21. Rhg1 axb4 22. axb4 Nc7 23. Kb2 Rfc8 24. Bd3 Na6 25. Na2 Rxc1 26. Rxc1 Qd8 27. Rc6 Bxc6 28. dxc6 Nbc5 29. bxc5 dxc5 30. Qc3 Nb4 31. Bb1 Nxc6 32. Qxc5 Na5 33. Qd5 Nc4+ 34. Ka1 Qa5 35. Ne2 Rd8 36. Qc5 Qd2 0-1

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Murey, Jacob"]
[Result "0-1"]
[ECO "D94"]
[WhiteElo "2430"]
[BlackElo "2450"]
[PlyCount "72"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 g6 5. Nc3 Bg7 6. Be2 0-0 7. 0-0 a6 8. b4 dxc4 9. Bxc4 Bg4 10. Bb2 Nbd7 11. Be2 Nb6 12. Ne5 Bxe2 13. Qxe2 Nfd5 14. Rab1 Nxb4 15. Ba1 a5 16. a3 N4d5 17. Nxd5 cxd5 18. Rb5 e6 19. Rfb1 Bxe5 20. Rxb6 Bd6 21. Qd3 Ra7 22. a4 Bb4 23. Rb5 Qc7 24. e4 Rd8 25. Bb2 Ra6 26. exd5 Rxd5 27. Ba3 Bxa3 28. Rxd5 exd5 29. Qxa3 Rb6 30. Re1 Rb4 31. Re8+ Kg7 32. g3 Qc4 33. Ra8 b6 34. Ra7 Rb1+ 35. Kg2 Qf1+ 36. Kf3 Qh1+ 0-1

[Event "Warsaw Legion op"]
[Site "Warsaw"]
[Date "1991.??.??"]
[Round "4"]
[White "Nikolaev, Sergej"]
[Black "Rajskij, Eduard"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2450"]
[BlackElo "2420"]
[PlyCount "36"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "POL"]
[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. Bd2 a5 5. g3 d5 6. Qc2 c6 7. Bg2 b6 8. 0-0 Ba6 9. Bxb4 axb4 10. Nbd2 Nbd7 11. a3 bxa3 12. Rxa3 Bb7 13. Rxa8 Qxa8 14. b4 0-0 15. Qb2 Qb8 16. Rc1 Rc8 17. cxd5 cxd5 18. e3 Ne8 1/2-1/2

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Sadriev, O."]
[Result "0-1"]
[ECO "A54"]
[WhiteElo "2450"]
[PlyCount "123"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Qe7 5. Bg5 c6 6. e4 h6 7. Bh4 Nbd7 8. Be2 g6 9. d5 g5 10. Bg3 Nh5 11. 0-0 Nf4 12. Re1 Qf6 13. dxc6 bxc6 14. b4 Be7 15. b5 Bb7 16. bxc6 Bxc6 17. Nd5 Bxd5 18. cxd5 Nxe2+ 19. Rxe2 Kf8 20. Rc1 Bd8 21. Qa4 Qe7 22. Rc6 Bb6 23. Rec2 Kg7 24. h4 Rad8 25. Qb4 Bc5 26. Qd2 g4 27. Nh2 Nf6 28. Qe2 h5 29. Nf1 Kh7 30. Ne3 Bxe3 31. Qxe3 Rd7 32. Qg5 Rg8 33. Qf5+ Rg6 34. Ra6 Ng8 35. Qxh5+ Nh6 36. Kh2 Rd8 37. Rac6 Kg7 38. Rc7 Rd7 39. Rxd7 Qxd7 40. Bxe5+ dxe5 41. Qxe5+ Kh7 42. g3 Rd6 43. Qc3 f6 44. Qa5 Rb6 45. d6 Qxd6 46. Qxa7+ Kg6 47. Rc7 Rb5 48. Rg7+ Kh5 49. Rh7 Qf8 50. Qe3 Kg6 51. Rd7 Qc5 52. Qf4 Qe5 53. Rd6 Qxf4 54. gxf4 Rb2 55. Kg3 Rxa2 56. f5+ Kg7 57. Rd7+ Nf7 58. Rd3 Ne5 59. Rb3 Kf8 60. Rb8+ Kg7 61. Rb7+ Kh6 62. Rb6 0-1

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Savon, Vladimir A"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2430"]
[BlackElo "2460"]
[PlyCount "51"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+ 7. Bd2 a5 8. 0-0 0-0 9. a3 Bxd2 10. Nbxd2 c5 11. Qc2 Nc6 12. e3 Qe7 13. Qb2 Rab8 14. Rfd1 Rfc8 15. Rac1 d6 16. Nb1 cxd4 17. exd4 Na7 18. b4 axb4 19. axb4 Bxf3 20. Bxf3 d5 21. Nd2 Nc6 22. b5 Qb4 23. Qxb4 Nxb4 24. cxd5 Nfxd5 25. Ne4 Kf8 26. Nd6 1/2-1/2

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Smit, A."]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2450"]
[PlyCount "83"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Qd2 cxd4 9. cxd4 Nc6 10. Nf3 Bg4 11. Rd1 0-0 12. Be2 Rc8 13. 0-0 Bxf3 14. gxf3 e5 15. dxe5 Qe7 16. f4 Rfd8 17. Qc2 g5 18. Rxd8+ Rxd8 19. fxg5 Qxe5 20. f4 Qa5 21. Bc4 Bd4 22. Bxd4 Rxd4 23. Bd5 Rd2 24. Qb3 Nd4 25. Qh3 Qb5 26. f5 Rd3 27. Qh5 Ne2+ 28. Kg2 Rxd5 29. exd5 Nd4 30. Qg4 Qxd5+ 31. Kh3 Qc4 32. Rd1 Qc3+ 33. Qg3 Qc5 34. f6 Qc8+ 35. Qg4 Qc3+ 36. Kh4 Ne6 37. Qg3 Qc4+ 38. Kh3 h6 39. gxh6+ Kh8 40. Rd8+ Kh7 41. Qg8+ Kxh6 42. Qh8+ 1-0

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Sveshnikov, Evgeny"]
[Result "1/2-1/2"]
[ECO "D40"]
[WhiteElo "2450"]
[BlackElo "2510"]
[PlyCount "47"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. e3 c5 5. Nc3 Nc6 6. a3 cxd4 7. exd4 Be7 8. Bd3 dxc4 9. Bxc4 0-0 10. 0-0 a6 11. Bg5 b5 12. Ba2 b4 13. Na4 bxa3 14. bxa3 Ra7 15. Rc1 Rc7 16. Bf4 Bd6 17. Ne5 Ne7 18. Nc5 Ned5 19. Bg5 Rxc5 20. Rxc5 Bxc5 21. dxc5 Qa5 22. Qc1 Nc3 23. Bc4 Nfd5 24. Bd2 1/2-1/2

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Troshchenko, D."]
[Result "1/2-1/2"]
[ECO "A55"]
[WhiteElo "2450"]
[PlyCount "96"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 c6 5. e4 e5 6. Be2 Be7 7. 0-0 Qc7 8. d5 0-0 9. Be3 h6 10. Rc1 c5 11. Nd2 Nh7 12. g3 Re8 13. Kh1 Ndf8 14. Bd3 Ng6 15. b4 b6 16. a3 Bh3 17. Rg1 Bg5 18. g4 Bf4 19. Rg3 Bxg3 20. hxg3 Nf6 21. f3 h5 22. g5 Nh7 23. Qe2 Bc8 24. Qh2 Qd7 25. Kg2 h4 26. gxh4 f6 27. h5 Nf4+ 28. Bxf4 exf4 29. g6 Ng5 30. Rh1 Re5 31. Qxf4 Nh3 32. Qh4 Rxh5 33. Qxh5 Nf4+ 34. Kf2 Nxh5 35. Rxh5 Qe8 36. e5 dxe5 37. d6 Be6 38. Nd5 Bxd5 39. cxd5 Rd8 40. bxc5 bxc5 41. Nc4 Qf8 42. Bf5 Rxd6 43. Nxd6 Qxd6 44. Be6+ Kf8 45. Rh8+ Ke7 46. Rg8 e4 47. Rxg7+ Ke8 48. Rg8+ Ke7 1/2-1/2

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Volke, Karsten"]
[Result "1/2-1/2"]
[ECO "E81"]
[WhiteElo "2430"]
[BlackElo "2425"]
[PlyCount "29"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 a6 7. Qd2 Nbd7 8. Bd3 c5 9. Nge2 b6 10. 0-0 Bb7 11. b3 e6 12. Rad1 cxd4 13. Bxd4 Qc7 14. Qb2 Rfd8 15. Rc1 1/2-1/2

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Zaitsev, Igor A"]
[Result "0-1"]
[ECO "E85"]
[WhiteElo "2430"]
[BlackElo "2405"]
[PlyCount "58"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nc6 7. Nge2 e5 8. d5 Na5 9. Nc1 c5 10. Nb3 Nxb3 11. axb3 Nh5 12. g3 f5 13. exf5 gxf5 14. Qd2 Bd7 15. Be2 a6 16. 0-0 f4 17. Bf2 fxg3 18. hxg3 Rf6 19. Kh2 Rh6 20. Kg1 Rg6 21. Bd3 Bh6 22. Qe1 Rg7 23. Kh2 Qg5 24. Rh1 Kh8 25. Ne4 Qf5 26. Nxc5 Qxf3 27. Be2 Qf5 28. Bd3 Qg4 29. Be2 Qh3+ 0-1

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Poldauf, Dirk"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A86"]
[WhiteElo "2385"]
[BlackElo "2430"]
[PlyCount "88"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. c4 f5 2. g3 Nf6 3. Bg2 g6 4. d4 Bg7 5. Nc3 0-0 6. Nh3 e6 7. 0-0 d6 8. Qb3 Na6 9. Rd1 c6 10. d5 cxd5 11. cxd5 e5 12. Ng5 Qe7 13. Ne6 Bxe6 14. dxe6 Nc5 15. Nd5 Nxd5 16. Qxd5 Rad8 17. Bg5 Bf6 18. Bxf6 Rxf6 19. Rac1 Nxe6 20. Qxb7 Rd7 21. Qd5 Kg7 22. e3 e4 23. b4 Ng5 24. a4 Re6 25. a5 Re5 26. Qc6 Ne6 27. Qc3 h5 28. Qb2 h4 29. Rc6 Ng5 30. b5 Nf7 31. b6 axb6 32. axb6 Kh7 33. Rdc1 Rc5 34. Bf1 Ne5 35. R6xc5 dxc5 36. Qc3 Rd2 37. Qxc5 Nf3+ 38. Kg2 h3+ 39. Kxh3 Qxc5 40. Rxc5 Rxf2 41. Bg2 Ng1+ 42. Kh4 Kh6 43. g4 Rxg2 44. g5+ Rxg5 0-1

[Event "Leningrad op"]
[Site "Leningrad"]
[Date "1991.??.??"]
[Round "?"]
[White "Ruf, Sylvain"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A88"]
[BlackElo "2450"]
[PlyCount "58"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "URS"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 f5 2. c4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. g3 0-0 6. Bg2 d6 7. 0-0 c6 8. b3 Qa5 9. Qd2 e5 10. Rb1 exd4 11. Nxd4 Na6 12. Bb2 Bd7 13. Rfd1 Rad8 14. e3 Qc7 15. Nde2 Bc8 16. Ba1 Rfe8 17. Rbc1 Qe7 18. Qd4 Nc5 19. Qh4 h6 20. Nb1 Nce4 21. Bxe4 Nxe4 22. Qxe7 Rxe7 23. Bxg7 Rxg7 24. Nbc3 Nf6 25. Rc2 Be6 26. Rcd2 Rgd7 27. Nf4 Bf7 28. Rd3 Ng4 29. Nfe2 Ne5 0-1

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Semeniuk, Alexander A"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2370"]
[BlackElo "2450"]
[PlyCount "57"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 a6 6. 0-0 Qc7 7. Kh1 d6 8. f4 Be7 9. Qe1 0-0 10. Nc3 Nbd7 11. Qg3 Nc5 12. Bd2 Nxd3 13. cxd3 Kh8 14. f5 Bd7 15. Rac1 Qb6 16. Nb3 a5 17. Be3 Qa6 18. d4 exf5 19. exf5 a4 20. Nd2 a3 21. b3 Qd3 22. Rf3 Qa6 23. d5 Rac8 24. Bd4 Nh5 25. Qf2 Bf6 26. Nde4 Be5 27. Rf1 Bb5 28. Rd1 Bd3 29. Rdxd3 1-0

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Shramov, IV."]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "E05"]
[BlackElo "2450"]
[PlyCount "64"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Nc3 Nc6 8. e3 Na5 9. e4 c5 10. d5 exd5 11. exd5 Bf5 12. Re1 Bd6 13. Nh4 Bd3 14. Bd2 b6 15. Bh3 a6 16. Qf3 Nd7 17. Bf4 Bxf4 18. Qxf4 g5 19. Qd6 Nf6 20. Qxd8 Raxd8 21. Nf5 Bxf5 22. Bxf5 Nxd5 23. Ne4 h6 24. Rad1 Kg7 25. Nc3 Nxc3 26. bxc3 b5 27. a3 Nc6 28. Bd7 Nd4 29. Bg4 Nc2 30. Re5 Rxd1+ 31. Bxd1 Nxa3 32. Rxc5 Nb1 0-1

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Sokolov, Dmitri"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "B89"]
[BlackElo "2450"]
[PlyCount "54"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Nc6 7. Bc4 a6 8. Qe2 Qc7 9. 0-0-0 Na5 10. Bd3 b5 11. g4 b4 12. Na4 Bb7 13. Kb1 Be7 14. Nb6 Rd8 15. g5 Nxe4 16. Bxa6 0-0 17. Bxb7 Nxb7 18. Nf5 exf5 19. Nd5 Qd7 20. f3 Nxg5 21. Rhg1 Ne6 22. Bd4 Bg5 23. Bf6 h6 24. f4 Nxf4 25. Rxg5 hxg5 26. Qf3 Nxd5 27. Bxd8 Rxd8 0-1

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Terterians, Vladimir"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2395"]
[BlackElo "2430"]
[PlyCount "91"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. e3 e6 5. Nf3 c5 6. Ne5 c4 7. g4 fxg4 8. Nxg4 Be7 9. Nxf6+ Bxf6 10. Qh5+ g6 11. Bxf6 Qxf6 12. Qh6 Bd7 13. f4 Nc6 14. h4 Ne7 15. Qg5 Kf7 16. Bh3 h6 17. Qxf6+ Kxf6 18. Kd2 Nf5 19. Bg4 Rhg8 20. Rag1 Bc6 21. Rg2 b5 22. Bxf5 gxf5 23. Rhg1 Rxg2+ 24. Rxg2 b4 25. Ne2 Rf8 26. Ng1 a5 27. Nf3 a4 28. Ne5 Be8 29. a3 b3 30. Kc3 Rh8 31. Rg1 Rh7 32. Rg8 Ke7 33. cxb3 axb3 34. Kb4 Kd8 35. Nc6+ Kd7 36. Ne5+ Kd8 37. Nc6+ Kd7 38. Nb8+ Ke7 39. Na6 Bf7 40. Rg1 Rh8 41. Nc5 Rb8+ 42. Kc3 Ra8 43. a4 Kd6 44. a5 Be8 45. Rg7 Bc6 46. a6 1-0

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Touzane, Olivier"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2250"]
[BlackElo "2430"]
[PlyCount "97"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 axb5 6. e4 Qa5+ 7. Bd2 b4 8. Na3 d6 9. Nc4 Qc7 10. a3 e6 11. dxe6 Bxe6 12. axb4 Rxa1 13. Qxa1 d5 14. exd5 Nxd5 15. b5 Bd6 16. Bd3 Nb4 17. Bxb4 cxb4 18. b6 Qc6 19. Nxd6+ Qxd6 20. Bb5+ Bd7 21. Bxd7+ Qxd7 22. Ne2 0-0 23. 0-0 Qb5 24. Ng3 Qxb6+ 25. Kh1 Nc6 26. Qc1 Ne5 27. Qg5 f6 28. Qf4 Rd8 29. Nf5 Qf2 30. Qc1 Qd2 31. Qc7 Qd7 32. Qb6 Rc8 33. Nd6 Rd8 34. Nf5 Nc4 35. Qc5 Qd3 36. Re1 Ne5 37. Qb6 b3 38. h4 Rd7 39. Qe6+ Kf8 40. Ra1 Qd5 41. Qb6 Kf7 42. Ra7 Rxa7 43. Qxa7+ Qd7 44. Qxd7+ Nxd7 45. Kg1 Nc5 46. Nd4 Ke7 47. Kf2 Kd6 48. Ke3 Kd5 49. h5 1/2-1/2

[Event "URS-sf"]
[Site "Voronezh"]
[Date "1991.??.??"]
[Round "?"]
[White "Tregubov, Pavel V"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "E05"]
[BlackElo "2450"]
[PlyCount "87"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "URS"]
[SourceTitle "CBM 022 Extra"]
[Source "ChessBase"]
[SourceDate "1991.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1991.07.01"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. 0-0 0-0 6. d4 dxc4 7. Na3 Bxa3 8. bxa3 Bd7 9. Ne5 Bc6 10. Nxc6 Nxc6 11. Bb2 Nd5 12. Rc1 Nb6 13. e3 Qd7 14. Qc2 Rab8 15. Rfd1 Ne7 16. Bf1 f5 17. Re1 Ned5 18. f3 Qa4 19. Bxc4 Qxc4 20. Qxc4 Nxc4 21. Rxc4 c6 22. Kf2 Rfd8 23. a4 Nb6 24. Rb4 Rd5 25. Bc3 Rc8 26. Re2 c5 27. dxc5 Rdxc5 28. Bd4 Ra5 29. Bxb6 axb6 30. Rxb6 Rxa4 31. Rxb7 Rca8 32. Rbb2 Kf7 33. f4 Kf6 34. h4 g6 35. Rec2 Ra3 36. Kf3 R8a7 37. Re2 h5 38. Kf2 R7a6 39. Ke1 e5 40. Kd1 e4 41. Kc1 Rc6+ 42. Kb1 Rd3 43. a4 Ra6 44. Ra2 1/2-1/2

[Event "Podolsk"]
[Site "Podolsk"]
[Date "1991.??.??"]
[Round "?"]
[White "Yudasin, Leonid"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2595"]
[BlackElo "2430"]
[PlyCount "57"]
[EventDate "1991.10.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "URS"]
[EventCategory "8"]
[SourceTitle "CBM 026 Extra"]
[Source "ChessBase"]
[SourceDate "1992.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1992.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qe2 Nc6 8. Be3 Nf6 9. Nc3 d6 10. Bxa7 Rxa7 11. f4 e5 12. f5 b5 13. 0-0-0 0-0 14. g4 Nd4 15. Qg2 b4 16. Ne2 Nxe2+ 17. Bxe2 a5 18. Nd2 Ba6 19. g5 Nd7 20. Bxa6 Rxa6 21. Nc4 a4 22. Kb1 Qc7 23. Ne3 b3 24. cxb3 axb3 25. a3 Nc5 26. Nd5 Qb7 27. Rhe1 Ra4 28. Nf6+ Kh8 29. Nxh7 1-0

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "5"]
[White "Bacso, Gabor"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "2305"]
[BlackElo "2345"]
[PlyCount "46"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 e6 4. Nc3 d5 5. Nf3 Nc6 6. a3 Ne4 7. cxd5 exd5 8. Qc2 Nxc3 9. bxc3 Bg4 10. Rb1 Qd7 11. Qa4 Be7 12. Bb5 Bxf3 13. gxf3 0-0 14. Bd3 c4 15. Be2 a6 16. Bd1 b5 17. Qc2 a5 18. 0-0 b4 19. Ra1 b3 20. Qd2 Qh3 21. e4 f5 22. e5 Nd8 23. f4 Ra6 0-1

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "9"]
[White "Busch, Klaus"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2305"]
[BlackElo "2345"]
[PlyCount "31"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 dxc4 5. Qc2 Nbd7 6. Na3 c5 7. Nxc4 Be7 8. 0-0 Nb6 9. b3 0-0 10. Bb2 Nbd5 11. Nce5 Bd7 12. a3 Bb5 13. Rfe1 Rc8 14. Rac1 Qd6 15. d4 Qb8 16. Qb1 1/2-1/2

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "4"]
[White "Ernst, Rolf"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "A46"]
[BlackElo "2345"]
[PlyCount "38"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. c3 b6 4. Bf4 Bb7 5. Nbd2 g6 6. e3 Bg7 7. h3 0-0 8. Bd3 d6 9. Qe2 Nh5 10. Bh2 f5 11. 0-0 a6 12. Rad1 Nd7 13. e4 Kh8 14. exf5 exf5 15. Rfe1 h6 16. Qe7 Bf6 17. Qxd8 Raxd8 18. Re2 Ng7 19. Ne1 Rfe8 1/2-1/2

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "7"]
[White "Feher, Gyula"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "B82"]
[WhiteElo "2390"]
[BlackElo "2345"]
[PlyCount "81"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be3 Nf6 7. f4 e5 8. Nde2 Ng4 9. Bg1 exf4 10. Nxf4 Be7 11. Qd2 0-0 12. 0-0-0 Be6 13. Kb1 Rc8 14. Be2 Nge5 15. Nfd5 Bg5 16. Qe1 Kh8 17. h3 Re8 18. g4 Bh4 19. Qd2 Ng6 20. Be3 Bg3 21. g5 Qa5 22. h4 Bxd5 23. exd5 Nb4 24. a3 Nxc2 25. Kxc2 Be5 26. Kb3 Nf4 27. Bxf4 Bxc3 28. bxc3 Rxe2 29. Qd4 Re4 30. Qd3 Rxf4 31. Rh2 Rfc4 32. Rc1 Qa4+ 33. Ka2 Rxh4 34. Re2 Qc4+ 35. Qxc4 Rhxc4 36. Kb2 g6 37. Rh2 Kg7 38. Rch1 Rh8 39. Re2 Rg4 40. Re7 Rxg5 41. c4 0-1

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "3"]
[White "Galanov, Boris"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2285"]
[BlackElo "2400"]
[PlyCount "55"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 d5 4. Nbd2 Nc6 5. g3 Nf6 6. Bg2 Be7 7. 0-0 b6 8. Re1 Qc7 9. Nf1 dxe4 10. dxe4 Bb7 11. c3 Rd8 12. Qe2 0-0 13. e5 Nd7 14. h4 Ndb8 15. Bf4 Ba6 16. Qe3 Na5 17. N1h2 Bd3 18. b3 Bg6 19. Ng4 Rd3 20. Qc1 Rfd8 21. h5 Bxh5 22. Nf6+ Bxf6 23. exf6 Qc8 24. Bxb8 gxf6 25. Qh6 Bg6 26. Bf4 Rxc3 27. Kh2 e5 28. Bxe5 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1990.??.??"]
[Round "7"]
[White "Gavrikov, Viktor"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2580"]
[BlackElo "2335"]
[PlyCount "98"]
[EventDate "1990.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. Rb1 a5 6. a3 f5 7. d3 Nf6 8. e3 0-0 9. Nge2 g5 10. f4 exf4 11. exf4 g4 12. d4 Ne7 13. d5 Ne8 14. Be3 Ra6 15. 0-0 h5 16. b4 axb4 17. axb4 Rh6 18. Ra1 h4 19. Ra8 Nf6 20. Qd3 Qe8 21. Nd4 Qh5 22. Kf2 d6 23. Rg1 Qg6 24. Re1 hxg3+ 25. hxg3 Rh2 26. Kf1 Ne4 27. Bg1 Rxg2 28. Kxg2 Qh7 29. Kf1 Qh3+ 30. Ke2 Nxg3+ 31. Kd1 Ng6 32. Nce2 Ne4 33. Qxh3 gxh3 34. Ra3 Bd7 35. Kc2 c5 36. dxc6 bxc6 37. Rxh3 c5 38. bxc5 dxc5 39. Nb3 Ra8 40. Nxc5 Ra2+ 41. Kb3 Rb2+ 42. Ka3 Bc6 43. Nxe4 Bxe4 44. Rg3 Kf7 45. Nc3 Bxc3 46. Rxc3 Rc2 47. Rxc2 Bxc2 48. Be3 Be4 49. Kb4 Ke7 1-0

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "1"]
[White "Gueldner, Kurt"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2290"]
[BlackElo "2345"]
[PlyCount "66"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. f3 axb5 6. e4 Qa5+ 7. Bd2 b4 8. Na3 e6 9. Nc4 Qc7 10. Bg5 Ba6 11. Nh3 Bxc4 12. Bxc4 Bd6 13. g3 Be5 14. Bf4 Bxf4 15. Nxf4 e5 16. Nd3 0-0 17. 0-0 d6 18. Qe2 Nbd7 19. f4 exf4 20. Rxf4 Rae8 21. Qf3 Ne5 22. Nxe5 Rxe5 23. a3 Qe7 24. axb4 cxb4 25. Bd3 Nh5 26. Ra4 g6 27. Rxb4 Nxf4 28. gxf4 Rh5 29. Qg3 Rc8 30. Qf2 Rh4 31. Rb6 g5 32. f5 Rg4+ 33. Kf1 Rf4 0-1

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "9"]
[White "Halasz, Tamas"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "D55"]
[WhiteElo "2415"]
[BlackElo "2400"]
[PlyCount "62"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. Bg5 0-0 6. e3 h6 7. Bxf6 Bxf6 8. Rc1 c6 9. Bd3 a6 10. 0-0 Nd7 11. cxd5 exd5 12. Re1 Re8 13. e4 Nf8 14. exd5 Rxe1+ 15. Qxe1 cxd5 16. Qe3 Be6 17. Ne5 Nd7 18. Nxd7 Qxd7 19. Re1 Qd6 20. Bc2 Qb4 21. Qd3 Rd8 22. Rd1 Qxb2 23. Rb1 Qa3 24. Rxb7 Qc1+ 25. Nd1 g6 26. Qe2 Rd6 27. g3 Bxd4 28. Bxg6 fxg6 29. Qd3 Bg7 30. Qxg6 Qxd1+ 31. Kg2 Bh3+ 0-1

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "7"]
[White "Hoeck, Raimund"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "B47"]
[BlackElo "2345"]
[PlyCount "60"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Be2 Qc7 7. 0-0 Nf6 8. Bf3 Bd6 9. g3 Nxd4 10. Qxd4 Be5 11. Qd3 b5 12. Bg2 Bb7 13. f4 Bxc3 14. bxc3 0-0 15. Bd2 Rac8 16. a4 b4 17. Rab1 bxc3 18. Be3 d5 19. exd5 Bxd5 20. Bxd5 Nxd5 21. Bf2 Qc4 22. Rfd1 Qxd3 23. Rxd3 Rb8 24. Rc1 Rfc8 25. a5 h5 26. Bd4 Rb5 27. Bb6 Rb2 28. Bd4 Ra2 29. Kf1 Rxa5 30. Ke1 Rc4 0-1

[Event "Liechtenstein op"]
[Site "Liechtenstein"]
[Date "1990.??.??"]
[Round "?"]
[White "Kranzl, Peter"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2315"]
[BlackElo "2345"]
[PlyCount "39"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "LIE"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Nf3 g6 9. Bc4 Nxe4 10. Qe2 f5 11. Bf4 Bg7 12. Ng5 0-0 13. h4 Nxg5 14. hxg5 Rf7 15. Rh3 Nd7 16. Re3 Bf8 17. Bxd6 exd6 18. Nxd6 Bxd6 19. Re8+ Qxe8 20. Qxe8+ 0-1

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "8"]
[White "Leuba, Didier"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2260"]
[BlackElo "2345"]
[PlyCount "80"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g6 5. e3 Bg7 6. Bd3 c5 7. 0-0 0-0 8. Re1 h6 9. Bh4 b6 10. e4 dxe4 11. Nxe4 Bb7 12. c3 Nxe4 13. Bxe4 Bxe4 14. Rxe4 g5 15. Nxg5 hxg5 16. Bxg5 f6 17. Qb3+ Rf7 18. Rae1 Ne5 19. dxe5 fxg5 20. h4 gxh4 21. Rf4 e6 22. Qxe6 Qe7 23. Qd5 Re8 24. Ree4 Qe6 25. Qxe6 Rxe6 26. Rxf7 Kxf7 27. f4 Kg6 28. Kf2 Kf5 29. Ra4 Bh6 30. g3 Re7 31. Kf3 hxg3 32. Kxg3 b5 33. Ra5 Bxf4+ 34. Kf3 Rb7 35. e6 Bd6 36. a4 bxa4 37. Rxa4 Kxe6 38. Ke4 Rxb2 39. Rxa7 Rh2 40. Kd3 Rh4 0-1

[Event "Budapest Spring op 06th"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "2"]
[White "Magerramov, Elmar S"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "2500"]
[BlackElo "2345"]
[PlyCount "48"]
[EventDate "1990.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 017 Extra"]
[Source "ChessBase"]
[SourceDate "1990.09.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 b4 5. a3 e6 6. Bg5 h6 7. Bh4 Qb6 8. Bxf6 gxf6 9. e4 Na6 10. Nbd2 Bg7 11. Rb1 bxa3 12. bxa3 Qa5 13. Qc1 0-0 14. Bd3 d6 15. 0-0 Bd7 16. Rb7 Ba4 17. Qb1 Qc3 18. dxe6 fxe6 19. e5 f5 20. exd6 Rfd8 21. Rc1 Qxa3 22. Re1 Rxd6 23. Bxf5 exf5 24. Qxf5 Qc3 0-1

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "12"]
[White "Meszaros, Attila"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2355"]
[BlackElo "2345"]
[PlyCount "24"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. cxd5 exd5 6. Bg5 c6 7. e3 Bf5 8. Bd3 Bxd3 9. Qxd3 0-0 10. 0-0 Nbd7 11. a3 Re8 12. b4 a6 1/2-1/2

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "5"]
[White "Naumann, Frank"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2290"]
[BlackElo "2400"]
[PlyCount "82"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. h4 c5 4. dxc5 Qa5+ 5. Nd2 e6 6. c3 Nxg5 7. hxg5 Qxc5 8. Ngf3 Nc6 9. Qc2 Qb6 10. 0-0-0 g6 11. Ne4 Be7 12. e3 d5 13. Nf6+ Bxf6 14. gxf6 Qd8 15. e4 Qxf6 16. exd5 exd5 17. Rxd5 Be6 18. Rd1 0-0 19. Qa4 h5 20. Be2 Rfe8 21. Rhe1 Bg4 22. Qb5 Re7 23. Bf1 Qf4+ 24. Kb1 Bxf3 25. gxf3 Qxf3 26. Qd3 Qxd3+ 27. Bxd3 Rd8 28. Rxe7 Nxe7 29. Kc2 Kg7 30. Re1 Nd5 31. Bc4 Rd7 32. b4 Nf4 33. a4 h4 34. Bb5 Rd5 35. Bc4 Rf5 36. Kd2 h3 37. Rh1 g5 38. Bf1 g4 39. Ke3 Ng2+ 40. Bxg2 hxg2 41. Rg1 Rf3+ 0-1

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "3"]
[White "Nikcevic, Nebojsa"]
[Black "Nikolaev, Sergej"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2335"]
[BlackElo "2345"]
[PlyCount "78"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. g3 0-0 6. Bg2 dxc4 7. Ne5 Nc6 8. Bxc6 bxc6 9. Nxc6 Qe8 10. Nxe7+ Qxe7 11. Qa4 c5 12. Qxc4 cxd4 13. Qxd4 Rd8 14. Qh4 e5 15. 0-0 Rd4 16. e4 Bb7 17. f3 Rd3 18. g4 Rad8 19. Qf2 h5 20. h3 hxg4 21. hxg4 Qe6 22. Qh4 Nh7 23. Be3 Nf8 24. Rad1 f6 25. Rxd3 Rxd3 26. Re1 Ng6 27. Qh2 Nf4 28. Qc2 Qc4 29. Bxf4 exf4 30. Kg2 Bc8 31. Rd1 Rxd1 32. Qxd1 Be6 33. Qd6 g5 34. Qb8+ Kg7 35. Qxa7+ Kg6 36. Qf2 Qd3 37. a4 Bc4 38. Nd5 Bxd5 39. exd5 Qxd5 1-0

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "6"]
[White "Nikolaev, Sergej"]
[Black "Berebora, Ferenc"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2400"]
[BlackElo "2305"]
[PlyCount "104"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bb5+ Bd7 8. Be2 c5 9. Nf3 cxd4 10. cxd4 Bc6 11. Qd3 f5 12. exf5 Qa5+ 13. Bd2 Qxf5 14. Qxf5 gxf5 15. 0-0 Bd5 16. Ne5 0-0 17. Rfd1 Nc6 18. Nxc6 bxc6 19. Bf4 c5 20. Be5 cxd4 21. Bxg7 Kxg7 22. Rxd4 e6 23. Bc4 Bxc4 24. Rxc4 Rac8 25. Rac1 Rxc4 26. Rxc4 Rf7 27. g3 Kf6 28. Rc5 Rb7 29. Kg2 h6 30. Ra5 h5 31. Kf3 Rc7 32. Ke3 Rc3+ 33. Kd2 Rc7 34. Kd3 Rd7+ 35. Ke3 Kg5 36. Ra6 Kf6 37. f4 h4 38. gxh4 Rh7 39. a4 Rxh4 40. Rxa7 Rxh2 41. a5 Rh3+ 42. Kf2 Ra3 43. Ra8 Ke7 44. a6 Kd6 45. a7 Kc7 46. Ke2 Kb7 47. Re8 Rxa7 48. Rxe6 Ra5 49. Kf2 Kc7 50. Kg3 Kd7 51. Re3 Ra8 52. Re5 Rg8+ 1/2-1/2

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "13"]
[White "Nikolaev, Sergej"]
[Black "Biro, Sandor"]
[Result "1/2-1/2"]
[ECO "D55"]
[WhiteElo "2345"]
[BlackElo "2435"]
[PlyCount "31"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 0-0 6. e3 h6 7. Bxf6 Bxf6 8. Rc1 c6 9. Bd3 Nd7 10. 0-0 dxc4 11. Bxc4 e5 12. Bb3 exd4 13. exd4 Nb6 14. h3 Bf5 15. Re1 Re8 16. Rxe8+ 1/2-1/2

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "6"]
[White "Nikolaev, Sergej"]
[Black "Domont, Alexandre"]
[Result "0-1"]
[ECO "D12"]
[WhiteElo "2345"]
[BlackElo "2315"]
[PlyCount "116"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[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. e3 Bf5 5. Bd3 Bxd3 6. Qxd3 e6 7. Nc3 Nbd7 8. 0-0 Be7 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 0-0 12. Bf4 Qa5 13. Rfd1 Rad8 14. a3 Qa4 15. Rac1 Rfe8 16. Qe3 c5 17. b3 Qxa3 18. Bc7 Rc8 19. Ra1 Qb2 20. Ba5 Qc2 21. Rd3 Bf6 22. Re1 Qa2 23. Bc3 Qxb3 24. Nd2 cxd4 25. Bxd4 Bxd4 26. Qxd4 Qb6 27. Ne4 Qxd4 28. Rxd4 Nc5 29. Nxc5 Rxc5 30. Rd7 Rb8 31. Rb1 Rxc4 32. g3 g6 33. Rbxb7 Rxb7 34. Rxb7 a5 35. Ra7 a4 36. f4 h6 37. Kg2 Kg7 38. Kf3 g5 39. h4 gxh4 40. gxh4 h5 41. Ra5 Kg6 42. Rg5+ Kh6 43. Ra5 Rc3+ 44. Ke4 Ra3 45. f5 Ra1 46. fxe6 fxe6 47. Kd3 a3 48. Kc2 a2 49. Kb2 Rh1 50. Kxa2 Rxh4 51. Re5 Rf4 52. Rxe6+ Kg5 53. Re8 Rf6 54. Re1 h4 55. Rg1+ Kh5 56. Rh1 Rf2+ 57. Kb3 Kg4 58. Rg1+ Kf3 0-1

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "3"]
[White "Nikolaev, Sergej"]
[Black "Fiedler, Wolfgang"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2345"]
[BlackElo "2150"]
[PlyCount "71"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[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. Bd2 c5 5. Bxb4 cxb4 6. a3 bxa3 7. Rxa3 b6 8. Nc3 d6 9. e3 0-0 10. Be2 Qe7 11. 0-0 Bb7 12. b4 a5 13. bxa5 bxa5 14. Qa1 Nc6 15. Rb1 Ba6 16. Nd2 d5 17. cxd5 exd5 18. Bxa6 Rxa6 19. Rb5 Rd8 20. Nb3 Qc7 21. Rc5 Qb8 22. Nxa5 Ne7 23. h3 Rb6 24. Qf1 Qd6 25. Rb3 Rxb3 26. Nxb3 g5 27. Nd2 h6 28. Nf3 Ng6 29. Qb5 Ra8 30. g3 Ne7 31. Qb7 Ra1+ 32. Kg2 Qe6 33. Rc7 Kf8 34. Ne5 Rc1 35. Qb2 Re1 36. Nf3 1-0

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "9"]
[White "Nikolaev, Sergej"]
[Black "Habibi, Ali"]
[Result "1/2-1/2"]
[ECO "E94"]
[WhiteElo "2345"]
[BlackElo "2255"]
[PlyCount "74"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 Nc6 6. Be3 e5 7. Nge2 exd4 8. Nxd4 0-0 9. Be2 Re8 10. 0-0 h6 11. Qd2 Kh7 12. Rad1 a6 13. Rfe1 Nxd4 14. Bxd4 b6 15. b3 Bb7 16. Nd5 Re6 17. Bf1 c5 18. Bc3 Nxd5 19. exd5 Rxe1 20. Rxe1 Bc8 21. Bd3 Bd7 22. Qf4 Qf8 23. Bf6 Re8 24. Rxe8 Bxe8 25. h4 b5 26. h5 bxc4 27. Bxc4 Bb5 28. Bxg7 Kxg7 29. Bxb5 axb5 30. a4 g5 31. Qd2 bxa4 32. bxa4 Qb8 33. a5 Qb4 34. Qa2 Qe1+ 35. Kh2 Qh4+ 36. Kg1 Qe1+ 37. Kh2 Qh4+ 1/2-1/2

[Event "Liechtenstein op"]
[Site "Liechtenstein"]
[Date "1990.??.??"]
[Round "?"]
[White "Nikolaev, Sergej"]
[Black "Ivanov, Stojan Emilov"]
[Result "0-1"]
[ECO "E88"]
[WhiteElo "2345"]
[BlackElo "2261"]
[PlyCount "70"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "LIE"]
[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 Bg7 4. e4 d6 5. f3 0-0 6. Be3 Nbd7 7. Qd2 e5 8. Nge2 c6 9. d5 cxd5 10. cxd5 a6 11. 0-0-0 b5 12. Kb1 Nb6 13. Rc1 Nc4 14. Qd3 Nxe3 15. Qxe3 Bd7 16. g4 b4 17. Nd1 Bb5 18. h4 Nd7 19. g5 Nc5 20. Nf2 f5 21. exf5 gxf5 22. Bh3 Rb8 23. Qd2 Na4 24. Ng3 Nc3+ 25. Ka1 Qa5 26. a3 e4 27. Nxf5 Rxf5 28. Bxf5 Na4 29. axb4 e3 30. Qxe3 Qxb4 31. Qe6+ Kf8 32. Rc8+ Rxc8 33. Qxc8+ Be8 34. Nd3 Bxb2+ 35. Kb1 Qb3 0-1

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "4"]
[White "Nikolaev, Sergej"]
[Black "Koczka, Zsolt"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2400"]
[BlackElo "2240"]
[PlyCount "61"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. e3 Be7 5. Nc3 0-0 6. Bd3 b6 7. 0-0 Bb7 8. b3 Ne4 9. Bb2 Nd7 10. Qe2 a6 11. Rfd1 Bd6 12. Ne5 f5 13. f3 Nxc3 14. Bxc3 Qe7 15. Rac1 c5 16. f4 Nxe5 17. dxe5 Bc7 18. cxd5 exd5 19. g4 fxg4 20. Qxg4 b5 21. Bf5 Rxf5 22. Qxf5 Rf8 23. Qg4 Bb6 24. Kf2 d4 25. exd4 cxd4 26. Bxd4 Bxd4+ 27. Rxd4 Qxe5 28. Rcd1 Be4 29. Kg3 Qe8 30. Re1 h5 31. Qg5 1-0

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "2"]
[White "Nikolaev, Sergej"]
[Black "Krstic, Mladen"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2345"]
[BlackElo "2280"]
[PlyCount "50"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[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. e3 g6 5. Be2 Bg7 6. Nc3 0-0 7. 0-0 Bg4 8. cxd5 cxd5 9. Qb3 b6 10. h3 Bxf3 11. Bxf3 e6 12. Bd2 Nc6 13. Qa4 Qd7 14. Rac1 Rac8 15. Be2 Nb8 16. Qxd7 Nfxd7 17. Nb5 Nc6 18. Rc2 Ndb8 19. Rfc1 Rfd8 20. Na3 Bf8 21. Bb5 Ne7 22. Rc7 a6 23. Bd3 b5 24. Kf1 Rxc7 25. Rxc7 Rd7 1/2-1/2

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "8"]
[White "Nikolaev, Sergej"]
[Black "Kuporosov, Viktor"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2400"]
[BlackElo "2485"]
[PlyCount "31"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 a6 6. a4 c5 7. 0-0 Nc6 8. Qe2 Qc7 9. Nc3 Bd6 10. Bd2 0-0 11. Rac1 Bd7 12. Rfd1 Rad8 13. Bd3 h6 14. Ne4 Nxe4 15. Bxe4 cxd4 16. exd4 1/2-1/2

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "6"]
[White "Nikolaev, Sergej"]
[Black "Mann, Christian"]
[Result "1/2-1/2"]
[ECO "D07"]
[WhiteElo "2345"]
[BlackElo "2305"]
[PlyCount "88"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 Nf6 5. e4 Bg4 6. Be3 Bxf3 7. gxf3 e5 8. d5 Na5 9. Qa4+ c6 10. b4 cxb3 11. axb3 Nd7 12. b4 cxd5 13. bxa5 d4 14. Bh3 Rc8 15. Nb5 a6 16. Nxd4 exd4 17. Bxd4 Rc6 18. Rd1 Bd6 19. Bxg7 Rg8 20. Bd4 Qc7 21. Ke2 Kf8 22. Rd2 Nc5 23. Bxc5 Rxc5 24. Qd4 Rc6 25. Rb1 Bxh2 26. Qd7 Rd6 27. Rxd6 Bxd6 28. Qc8+ Qxc8 29. Bxc8 Bc7 30. Rxb7 Bxa5 31. Ra7 Bb6 32. Rxa6 Bd4 33. Rd6 Bc5 34. Rd5 Bb6 35. Rb5 Bd4 36. Bh3 Rg6 37. f4 Rb6 38. Rxb6 Bxb6 39. Bf5 h6 40. Kf3 Ke7 41. Kg3 Bc7 42. Kg4 h5+ 43. Kf3 Bb6 44. Bh3 Bd4 1/2-1/2

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "4"]
[White "Nikolaev, Sergej"]
[Black "Orso, Miklos"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2345"]
[BlackElo "2390"]
[PlyCount "45"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 c5 2. d5 e6 3. e4 Nf6 4. Nc3 exd5 5. exd5 d6 6. Nf3 g6 7. Bb5+ Bd7 8. 0-0 Bxb5 9. Nxb5 a6 10. Nc3 Be7 11. Bh6 Ng4 12. Qd2 Kd7 13. a4 Nxh6 14. Qxh6 Kc7 15. Qf4 Qf8 16. a5 Nd7 17. Na4 Rc8 18. b4 cxb4 19. Qxb4 Kb8 20. Nd4 Rc7 21. Nc6+ Kc8 22. Nb6+ Nxb6 23. axb6 1-0

[Event "Budapest Spring op 06th"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "9"]
[White "Nikolaev, Sergej"]
[Black "Palkovi, Jozsef"]
[Result "1-0"]
[ECO "A70"]
[WhiteElo "2345"]
[BlackElo "2440"]
[PlyCount "55"]
[EventDate "1990.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 017 Extra"]
[Source "ChessBase"]
[SourceDate "1990.09.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. h3 0-0 9. Bd3 b5 10. Nxb5 Nxe4 11. 0-0 Ba6 12. Re1 Nf6 13. Bf4 Qb6 14. Nxd6 Qxb2 15. Rb1 Qa3 16. Bb5 Qa5 17. Nc4 Qd8 18. Bd6 Bxb5 19. Rxb5 Re8 20. Rxe8+ Qxe8 21. Rxc5 Nbd7 22. Rc7 Nb6 23. Nxb6 axb6 24. Be7 Rxa2 25. d6 Ra8 26. d7 Qxe7 27. Rc8+ Qd8 28. Rxa8 1-0

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "11"]
[White "Nikolaev, Sergej"]
[Black "Pogorelov, Ruslan"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2345"]
[BlackElo "2415"]
[PlyCount "24"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[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. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Bd3 Bxd3 9. Qxd3 Bd6 10. Bxd6 Qxd6 11. 0-0 0-0 12. Rac1 Rac8 1/2-1/2

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "10"]
[White "Nikolaev, Sergej"]
[Black "Pogorelov, Ruslan"]
[Result "1/2-1/2"]
[ECO "E14"]
[WhiteElo "2400"]
[BlackElo "2385"]
[PlyCount "71"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. 0-0 c5 6. c4 Be7 7. Nc3 Bxf3 8. Qxf3 Nc6 9. Qg3 cxd4 10. exd4 Nxd4 11. Qxg7 Rg8 12. Qh6 Nf3+ 13. Kh1 Ne5 14. Be2 Rc8 15. b3 Neg4 16. Bxg4 Rxg4 17. Bg5 Ng8 18. Bxe7 Nxh6 19. Bxd8 Kxd8 20. Rad1 Nf5 21. h3 Rd4 22. g4 Rxd1 23. Rxd1 Nh4 24. Kh2 Ke7 25. Kg3 Ng6 26. Ne4 a6 27. f4 f6 28. f5 Ne5 29. Kf4 Nf7 30. h4 h6 31. a4 Rc6 32. Ra1 Nd6 33. a5 e5+ 34. Ke3 Nxe4 35. Kxe4 Rd6 36. axb6 1/2-1/2

[Event "Bad Ragaz op"]
[Site "Bad Ragaz"]
[Date "1990.??.??"]
[Round "1"]
[White "Nikolaev, Sergej"]
[Black "Rupp, Claus"]
[Result "1/2-1/2"]
[ECO "E72"]
[WhiteElo "2345"]
[PlyCount "128"]
[EventDate "1990.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 c6 5. e4 d6 6. Nc3 0-0 7. Nge2 e5 8. 0-0 Nbd7 9. h3 a6 10. dxe5 dxe5 11. Be3 Qe7 12. Qc2 Rd8 13. Rfd1 Nf8 14. Na4 Ne6 15. c5 Bd7 16. Nb6 Rab8 17. Rd6 Ne8 18. Rd3 N8c7 19. Rad1 Be8 20. Nc1 Rxd3 21. Rxd3 Nb5 22. Nb3 Rd8 23. Rxd8 Qxd8 24. Na5 Qe7 25. b4 Qc7 26. Bf1 Nbd4 27. Qd1 f6 28. Bc4 Bf7 29. a4 Bf8 30. Kg2 Be7 31. Qb1 Kg7 32. Qa2 Bd8 33. Bxd4 Nxd4 34. Bxf7 Qxf7 35. Qxf7+ Kxf7 36. Nxb7 Bc7 37. Nc4 Nc2 38. b5 cxb5 39. axb5 axb5 40. Nbd6+ Bxd6 41. Nxd6+ Ke7 42. Nxb5 Kd7 43. Nc3 Ne1+ 44. Kf1 Nd3 45. Nd5 Nxc5 46. Nxf6+ Ke6 47. Nxh7 Nxe4 48. Ke2 Kf5 49. Ke3 Nc3 50. g4+ Ke6 51. Ng5+ Kd5 52. h4 Nb5 53. Nf7 Ke6 54. Nd8+ Kf6 55. Nc6 Ke6 56. Nb4 Nd6 57. Kd3 Nb5 58. Nc2 Nd6 59. Ne3 Nf7 60. Nc4 Kd5 61. g5 e4+ 62. Kc3 Nd8 63. Nb6+ Ke5 64. Nd7+ Kf5 1/2-1/2

[Event "Budapest IM-A"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "8"]
[White "Nikolaev, Sergej"]
[Black "Stajcic, Nikola"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2345"]
[BlackElo "2290"]
[PlyCount "109"]
[EventDate "1990.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "HUN"]
[EventCategory "4"]
[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 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Nc3 d5 8. cxd5 exd5 9. Bg2 0-0 10. 0-0 Bb7 11. Bf4 Na6 12. Ne5 c5 13. dxc5 bxc5 14. Rc1 Nc7 15. Qd2 Rb8 16. Rfd1 d4 17. Na4 Bxg2 18. Kxg2 Ne6 19. Nf3 Rc8 20. Be5 Nd5 21. e4 Nb6 22. Nxb6 Qxb6 23. g4 Rfe8 24. Bg3 a5 25. Rc4 Ra8 26. Ra4 f6 27. Qd3 Bf8 28. Nd2 Nd8 29. Nc4 Qb5 30. f3 Ra6 31. Rc1 Ne6 32. Nb2 Qb7 33. Qc4 Kh8 34. Nd3 h6 35. Qd5 Qf7 36. Nxc5 Bxc5 37. Rxc5 Rd8 38. Qc4 Nxc5 39. Qxf7 Nxa4 40. Qe7 Raa8 41. Bc7 Rdc8 42. e5 Ra7 43. exf6 Raxc7 44. fxg7+ Kg8 45. Qe6+ Kxg7 46. bxa4 Rc2+ 47. Kg3 R8c4 48. h4 R2c3 49. h5 d3 50. Qg6+ Kf8 51. Qxh6+ Ke7 52. Qg5+ Kd6 53. h6 Rd4 54. h7 Rc8 55. Qf6+ 1-0

[Event "Budapest Spring op 06th"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "3"]
[White "Nikolaev, Sergej"]
[Black "Tatar Kis, Szabolcs"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2345"]
[BlackElo "2205"]
[PlyCount "81"]
[EventDate "1990.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 017 Extra"]
[Source "ChessBase"]
[SourceDate "1990.09.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.09.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d5 6. cxd5 exd5 7. Bg2 Bb4+ 8. Bd2 Bd6 9. Nc3 0-0 10. Ne5 Re8 11. 0-0 Bb7 12. Bg5 Bxe5 13. dxe5 Rxe5 14. f4 Re8 15. Bxf6 Qxf6 16. Nxd5 Bxd5 17. Qxd5 Na6 18. Qb5 Qd4+ 19. Kh1 Nc5 20. Bxa8 Rxa8 21. Qc6 Rf8 22. Rfd1 Qb2 23. Qf3 a5 24. e4 g6 25. e5 a4 26. Qg2 Qa3 27. Rab1 axb3 28. axb3 Qb4 29. Qd5 Ne6 30. Qc4 Qa3 31. Ra1 Qb2 32. b4 Qf2 33. Rf1 Qe3 34. Rae1 Qd2 35. Rd1 Qe3 36. Qd3 Qxd3 37. Rxd3 Ra8 38. g4 Ra4 39. f5 Ng5 40. h4 Ne4 41. f6 1-0

[Event "Budapest Spring op 06th"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "5"]
[White "Nikolaev, Sergej"]
[Black "Titov, German1111"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2345"]
[BlackElo "2460"]
[PlyCount "70"]
[EventDate "1990.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 017 Extra"]
[Source "ChessBase"]
[SourceDate "1990.09.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.09.01"]
[SourceQuality "1"]

1. d4 d6 2. c4 e5 3. Nf3 e4 4. Ng5 f5 5. f3 Be7 6. Nh3 Nf6 7. Nc3 c6 8. d5 0-0 9. Nf2 Nbd7 10. f4 Qb6 11. e3 Nc5 12. Be2 a5 13. 0-0 g6 14. Rb1 Bd7 15. b3 Rfc8 16. h3 Qd8 17. Bb2 Ne8 18. g4 h6 19. Kh2 Bf6 20. Rg1 Kh7 21. a3 Qe7 22. b4 axb4 23. axb4 Na6 24. Qb3 c5 25. b5 Nb4 26. gxf5 Bxf5 27. Rg2 Bh8 28. Rbg1 Nf6 29. Ba3 Nd7 30. Bb2 Rg8 31. Bg4 Nf6 32. Re1 Rge8 33. Rgg1 Nxg4+ 34. hxg4 Qh4+ 35. Kg2 Nd3 0-1

[Event "HUN-ch op"]
[Site "Gyor"]
[Date "1990.??.??"]
[Round "11"]
[White "Panchenko, Alexandar G"]
[Black "Nikolaev, Sergej"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2375"]
[BlackElo "2400"]
[PlyCount "51"]
[EventDate "1990.09.??"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "HUN"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 0-0 6. 0-0 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 a5 11. Nc3 Na6 12. Rae1 Bd5 13. Qd3 Nb4 14. Qb1 c6 15. Rd1 Qb6 16. Ne5 Bxg2 17. Kxg2 Rfd8 18. e3 c5 19. dxc5 Qxc5 20. Nf3 Qc6 21. e4 h6 22. Be3 Ng4 23. Bd4 Bf6 24. Bxf6 Nxf6 25. h3 Qc4 26. Rd2 1/2-1/2

[Event "Budapest Spring op 06th"]
[Site "Budapest"]
[Date "1990.??.??"]
[Round "6"]
[White "Petyko, Zoltan"]
[Black "Nikolaev, Sergej"]
[Result "0-1"]
[ECO "B20"]
[BlackElo "2345"]
[PlyCount "44"]
[EventDate "1990.03.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "HUN"]
[SourceTitle "CBM 017 Extra"]
[Source "ChessBase"]
[SourceDate "1990.09.01"]
[SourceVersion "1"]
[SourceVersionDate "1990.09.01"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 bxa3 4. d4 g6 5. c3 Bg7 6. f4 d6 7. Nxa3 Nf6 8. Bd3 e5 9. Nc4 exd4 10. Ba3 0-0 11. Nxd6 dxc3 12. Nxc8 Qxc8 13. Bxf8 Kxf8 14. Rc1 Qc5 15. Qf3 Nc6 16. e5 Nd4 17. Qxb7 Re8 18. Nf3 Nc6 19. Be2 Ne4 20. Rf1 c2 21. Nd2 Qc3 22. Qd7 Rd8 0-1

