[Event "BUL-ch Students"]
[Site "Sofia"]
[Date "2009.11.08"]
[Round "7"]
[White "Kostov, Stojan"]
[Black "Nikolov, Stojan"]
[Result "0-1"]
[ECO "B34"]
[PlyCount "42"]
[EventDate "2009.11.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. f3 0-0 8. Qd2 d5 9. exd5 Nxd5 10. Nxc6 bxc6 11. Nxd5 cxd5 12. c3 e6 13. Bd3 Qa5 14. 0-0 Rb8 15. Rfb1 e5 16. c4 Qxd2 17. Bxd2 e4 18. fxe4 Bxb2 19. Bc1 Bd4+ 20. Kf1 Ba6 21. Bf4 Rbc8 0-1

[Event "BUL-ch Students"]
[Site "Sofia"]
[Date "2009.11.08"]
[Round "6"]
[White "Krastev, Krasimir"]
[Black "Kostov, Stojan"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2034"]
[PlyCount "83"]
[EventDate "2009.11.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Nxc6 bxc6 7. a3 Bxc3+ 8. bxc3 Nxe4 9. Qg4 Qe7 10. Qxg7 Rf8 11. Be3 d5 12. Bd3 Nf6 13. Bxh7 Ba6 14. Kd1 Nxh7 15. Qxh7 0-0-0 16. Qf5+ Kb8 17. Qf4 c5 18. Rb1+ Ka8 19. Re1 Rfe8 20. Kd2 Rb8 21. Qa4 Qd6 22. Rxb8+ Rxb8 23. Bf4 Qf6 24. Re8 Rxe8 25. Qxe8+ Kb7 26. Qe5 Qxe5 27. Bxe5 Kc6 28. g4 Bc8 29. f3 Kd7 30. h4 Ke6 31. Bxc7 Kf6 32. Bd6 c4 33. Ke3 Be6 34. Kf4 a6 35. h5 Kg7 36. Ke5 Bc8 37. g5 Bb7 38. f4 Bc6 39. f5 Bb7 40. Be7 Bc8 41. Bf6+ Kg8 42. g6 1-0

[Event "BUL-ch Students"]
[Site "Sofia"]
[Date "2009.11.07"]
[Round "5"]
[White "Kostov, Stojan"]
[Black "Genov, Delyan"]
[Result "1/2-1/2"]
[ECO "B17"]
[PlyCount "100"]
[EventDate "2009.11.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. Nf3 Nxe4 7. Bxe4 Nf6 8. Bd3 g6 9. h3 Bg7 10. c4 0-0 11. Bf4 Re8 12. Qe2 Nh5 13. Bd2 Bxd4 14. Nxd4 Qxd4 15. Bc3 Qc5 16. 0-0-0 Bf5 17. Bxf5 Qxf5 18. g4 Qg5+ 19. Bd2 Nf4 20. Qf3 e5 21. h4 Qf6 22. h5 g5 23. Rhe1 Rad8 24. Bxf4 Qxf4+ 25. Qxf4 exf4 26. Rxd8 Rxd8 27. Re7 Rb8 28. h6 Kf8 29. Rc7 Re8 30. Kd2 f3 31. Rxb7 Re2+ 32. Kd3 f5 33. Rxh7 Kg8 34. Rxa7 fxg4 35. Rg7+ Kh8 36. Rxg5 Rxb2 37. Ke3 Re2+ 38. Kd3 Rxa2 39. Rxg4 Rxf2 40. Rf4 Kh7 41. Ke3 Re2+ 42. Kxf3 Re6 43. Rh4 Rd6 44. Ke4 c5 45. Ke5 Rd1 46. Ke6 Rd4 47. Rh5 Rxc4 48. Kd6 Rc1 49. Rxc5 Rxc5 50. Kxc5 Kxh6 1/2-1/2

[Event "BUL-ch Students"]
[Site "Sofia"]
[Date "2009.11.07"]
[Round "4"]
[White "Markaryan, Garo"]
[Black "Kostov, Stojan"]
[Result "1-0"]
[ECO "D88"]
[PlyCount "85"]
[EventDate "2009.11.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[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 Nc6 9. Be3 cxd4 10. cxd4 0-0 11. 0-0 Bg4 12. f3 Bd7 13. Rb1 Na5 14. Bd3 a6 15. a4 Rc8 16. Rb4 Qe8 17. d5 b5 18. axb5 axb5 19. Bd4 Nc4 20. Bxc4 Rxc4 21. Rxc4 bxc4 22. Bxg7 Kxg7 23. Qd4+ Kg8 24. Qxc4 Bb5 25. Qc2 Qd7 26. Rc1 Qa7+ 27. Kh1 Bd7 28. Qc5 Qa2 29. Qxe7 Bh3 30. gxh3 Qxe2 31. Qf6 Rb8 32. Qf4 Rb2 33. Qg3 Rb3 34. Re1 Qd2 35. Rf1 Qe2 36. Qf2 Qd3 37. Re1 Rc3 38. Qe2 Qd4 39. Rd1 Qe5 40. d6 Qe8 41. d7 Qd8 42. Qd2 Rc7 43. Qd6 1-0

[Event "BUL-ch Students"]
[Site "Sofia"]
[Date "2009.11.06"]
[Round "3"]
[White "Kostov, Stojan"]
[Black "Dimitrov, Alexander"]
[Result "0-1"]
[ECO "C60"]
[BlackElo "1990"]
[PlyCount "52"]
[EventDate "2009.11.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. 0-0 Bg7 5. c3 d6 6. d4 Bd7 7. Re1 Nge7 8. dxe5 dxe5 9. Nbd2 0-0 10. Nf1 Nc8 11. Ng3 Nd6 12. Bd3 Qe7 13. Qc2 Nd8 14. Bd2 Ne6 15. h3 Nf4 16. Bxf4 exf4 17. Ne2 Be5 18. Ned4 f6 19. Nh2 h5 20. Nhf3 c5 21. Nxe5 fxe5 22. Nf3 g5 23. Qe2 g4 24. hxg4 hxg4 25. Nh2 Qh4 26. Bc4+ Kg7 0-1

[Event "BUL-ch Students"]
[Site "Sofia"]
[Date "2009.11.05"]
[Round "2"]
[White "Stanoev, Atanas"]
[Black "Kostov, Stojan"]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "2222"]
[PlyCount "53"]
[EventDate "2009.11.04"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. Qb3 c6 6. Bf4 0-0 7. e3 e6 8. Be2 Nbd7 9. 0-0 Qb6 10. Qc2 c5 11. dxc5 Nxc5 12. Rfd1 Rd8 13. Bg5 Nce4 14. Nxe4 dxe4 15. Nd2 e5 16. c5 Qc7 17. b4 Bf5 18. Nc4 h6 19. Bh4 g5 20. Bg3 Nd5 21. Qb2 f6 22. Nd6 Be6 23. Rac1 Bf8 24. Nxe4 Kg7 25. h4 a5 26. hxg5 hxg5 27. Nxg5 1-0

