[Event "Paracin Summer op-A 10th"]
[Site "Paracin"]
[Date "2017.07.11"]
[Round "5.25"]
[White "Konstantinov, Aleksandar"]
[Black "Costachi, Mihnea"]
[Result "0-1"]
[ECO "D14"]
[WhiteElo "2262"]
[BlackElo "2427"]
[PlyCount "52"]
[EventDate "2017.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 Nf6 6. Nc3 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 Rc8 10. Bd3 b5 11. a3 e6 12. Nf3 Be7 13. 0-0 0-0 14. Qe2 Nc4 15. Ne5 Be8 16. Rfd1 Qb6 17. e4 dxe4 18. Nxe4 Nd5 19. Bg3 f5 20. Nc3 f4 21. Qe4 g6 22. Nxd5 exd5 23. Qxd5+ Kh8 24. Bxc4 bxc4 25. Nd7 Bxd7 26. Qxd7 Rc7 0-1

[Event "Paracin Summer op-A 10th"]
[Site "Paracin"]
[Date "2017.07.11"]
[Round "6.44"]
[White "Kuzmanovic, Slobodan"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2144"]
[BlackElo "2262"]
[PlyCount "59"]
[EventDate "2017.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 e6 3. b3 c5 4. Bb2 b6 5. g3 Bb7 6. Bg2 Be7 7. 0-0 d6 8. Nc3 Nbd7 9. d4 cxd4 10. Qxd4 a6 11. e4 0-0 12. Rfd1 Qc7 13. Rac1 Rac8 14. Ba3 Ne8 15. Qe3 Nc5 16. Bb2 Nf6 17. Nd4 Qb8 18. Rc2 Qa8 19. Re2 Rfe8 20. Bf3 Ncd7 21. h3 Bf8 22. Bg2 Nc5 23. f4 e5 24. Nf5 exf4 25. Qxf4 Ncxe4 26. Nxe4 Nxe4 27. Rxe4 Rxe4 28. Bxe4 Bxe4 29. Nh6+ gxh6 30. Qf6 1-0

[Event "Paracin Summer op-A 10th"]
[Site "Paracin"]
[Date "2017.07.08"]
[Round "2.47"]
[White "Dimitrijevic, Dusan"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "E14"]
[WhiteElo "2138"]
[BlackElo "2262"]
[PlyCount "114"]
[EventDate "2017.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. c4 c5 4. e3 cxd4 5. exd4 d6 6. Nc3 b6 7. Bd3 Bb7 8. 0-0 Be7 9. Bf4 a6 10. b4 Nbd7 11. a4 0-0 12. a5 bxa5 13. bxa5 Rc8 14. Qe2 Re8 15. Rfb1 Ba8 16. Na4 e5 17. Nb6 Nxb6 18. axb6 Bxf3 19. Qxf3 exf4 20. b7 Rb8 21. Rxa6 Qc7 22. Rc6 Qd7 23. Rcb6 Bd8 24. R6b5 d5 25. cxd5 Bc7 26. h3 Red8 27. Bc4 Ne8 28. Rc5 Nd6 29. Ba6 Nf5 30. Qc3 Bd6 31. Rc8 Ne7 32. Rc1 Nxd5 33. Rxd8+ Qxd8 34. Qc8 Qf8 35. Re1 Ne7 36. Qd7 Qd8 37. Qb5 Qc7 38. d5 f3 39. gxf3 h6 40. Re4 Qc1+ 41. Kg2 Qg5+ 42. Rg4 Qxd5 43. Qd7 Qc6 44. Qxc6 Nxc6 45. Rc4 Nb4 46. Rc8+ Kh7 47. Rxb8 Bxb8 48. Bb5 Kg6 49. Bd7 Kf6 50. Kf1 Ke7 51. Bf5 Na6 52. Ke2 Nc5 53. Bc8 Kd8 54. Ke3 Kc7 55. Kf4 Nxb7 56. Bf5 Kd8+ 57. Kg4 Nd6 0-1

[Event "Paracin Summer op-A 10th"]
[Site "Paracin"]
[Date "2017.07.08"]
[Round "3.45"]
[White "Konstantinov, Aleksandar"]
[Black "Bojicic, Andjela"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2262"]
[BlackElo "2072"]
[PlyCount "62"]
[EventDate "2017.07.07"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 0-0 6. Nf3 e5 7. d5 a5 8. Be2 Na6 9. Bg5 h6 10. Be3 Nh5 11. Nd2 Nf4 12. Bf1 Qe7 13. g3 Nh5 14. Be2 Nf6 15. g4 Nh7 16. h4 f5 17. gxf5 gxf5 18. exf5 Bxf5 19. Nde4 Bxe4 20. Nxe4 Nc5 21. Nxc5 dxc5 22. Qd2 Rf6 23. Rg1 Kh8 24. h5 e4 25. Rg6 Rxg6 26. hxg6 Ng5 27. 0-0-0 Ra6 28. d6 Rxd6 29. Bxc5 Rxd2 30. Bxe7 Rxd1+ 31. Bxd1 Bd4 1/2-1/2

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.18"]
[Round "9"]
[White "Konstantinov, Aleksandar"]
[Black "Popchev, Milko"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2251"]
[BlackElo "2310"]
[PlyCount "19"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. Kd2 1/2-1/2

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.17"]
[Round "8"]
[White "Jovic, Stanoje"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "A37"]
[WhiteElo "2313"]
[BlackElo "2251"]
[PlyCount "20"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 e5 6. 0-0 Nge7 7. Ne1 d6 8. Nc2 Be6 9. Ne3 0-0 10. Ned5 Rb8 1/2-1/2

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.17"]
[Round "7"]
[White "Sredojevic, Ivan"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "C14"]
[WhiteElo "2367"]
[BlackElo "2251"]
[PlyCount "70"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 h6 7. Bxe7 Qxe7 8. h5 c5 9. Nb5 0-0 10. Nc7 Nxe5 11. Nxa8 cxd4 12. Qxd4 Nbc6 13. Qd2 b6 14. 0-0-0 Bb7 15. Nxb6 axb6 16. Nf3 Nd7 17. g4 Nc5 18. Kb1 Ne4 19. Qe1 Qc5 20. Rg1 Nb4 21. Rc1 Rc8 22. c4 d4 23. Rd1 d3 24. Nd2 Qa5 25. a3 Nc2 26. Qxe4 Bxe4 27. Nxe4 Nd4 28. Bxd3 Nf3 29. Rg3 Ne5 30. Rd2 Nxd3 31. Rgxd3 Rxc4 32. Re3 b5 33. g5 Rxe4 34. b4 Qa8 35. Red3 Kh7 0-1

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.16"]
[Round "6"]
[White "Konstantinov, Aleksandar"]
[Black "Drazic, Sinisa"]
[Result "1/2-1/2"]
[ECO "E36"]
[WhiteElo "2251"]
[BlackElo "2416"]
[PlyCount "43"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Be7 6. cxd5 exd5 7. Bg5 c6 8. e3 Nbd7 9. Bd3 0-0 10. Nge2 Re8 11. 0-0 Nf8 12. Rae1 Nh5 13. Bxe7 Rxe7 14. Ng3 Nxg3 15. hxg3 Qd6 16. e4 dxe4 17. Nxe4 Qd8 18. Ng5 h6 19. Rxe7 Qxe7 20. Nf3 Be6 21. Re1 Rd8 22. Bc4 1/2-1/2

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.16"]
[Round "5"]
[White "Konstantinov, Aleksandar"]
[Black "Savic, Miodrag R"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2251"]
[BlackElo "2515"]
[PlyCount "22"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 h6 7. Bh4 Bd6 8. Bd3 0-0 9. Nge2 Re8 10. Qd2 Nbd7 11. Bg3 Bb4 1/2-1/2

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.15"]
[Round "4"]
[White "Marholev, Dimitar"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "C04"]
[WhiteElo "2199"]
[BlackElo "2251"]
[PlyCount "52"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Bb5 a6 7. Bxc6 bxc6 8. Nb3 c5 9. c3 cxd4 10. cxd4 c5 11. dxc5 Nxc5 12. Nxc5 Bxc5 13. 0-0 0-0 14. Qa4 Bd7 15. Qg4 Kh8 16. Be3 Bxe3 17. fxe3 h6 18. Nd4 Qb8 19. Qg3 Qxb2 20. Rab1 Qxa2 21. Rb7 Rad8 22. Qh4 Qa3 23. Rf3 Qc1+ 24. Kf2 Qd2+ 25. Kg1 a5 26. Qe7 Qe1+ 0-1

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.14"]
[Round "2"]
[White "Damia, Angelo"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "C14"]
[WhiteElo "2329"]
[BlackElo "2251"]
[PlyCount "13"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 h6 7. Bxe7 1/2-1/2

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.14"]
[Round "3"]
[White "Konstantinov, Aleksandar"]
[Black "Vuelban, Virgilio"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2251"]
[BlackElo "2289"]
[PlyCount "181"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Be3 c5 8. Rc1 0-0 9. Qd2 Qa5 10. Nf3 Nc6 11. d5 Rd8 12. Bd3 Bg4 13. c4 Nb4 14. Bb1 Bb2 15. Rd1 Nc2+ 16. Ke2 Qxd2+ 17. Rxd2 Nxe3 18. fxe3 Bg7 19. h3 Bd7 20. Bd3 Ba4 21. Bc2 Be8 22. Rb1 Rab8 23. Bd3 Bc3 24. Rc2 Bg7 25. e5 f6 26. Rcb2 b6 27. e4 fxe5 28. Bc2 Rd6 29. a4 Bd7 30. a5 e6 31. Bd3 Bf6 32. Nd2 Bh4 33. Nb3 Rf8 34. Rf1 Rxf1 35. Kxf1 exd5 36. cxd5 Rf6+ 37. Kg1 Be1 38. Ra2 Bc3 39. Kh2 Bb4 40. axb6 axb6 41. Ra8+ Kf7 42. Ra7 Ke8 43. Rb7 h5 44. Na1 h4 45. Nc2 Kd8 46. Rb8+ Kc7 47. Rh8 g5 48. Rg8 Bd2 49. Rg7 Kd8 50. Kg1 b5 51. Rg8+ Kc7 52. Rg7 c4 53. Be2 Kd6 54. Rh7 Ba5 55. Na3 Bb6+ 56. Kh2 Bc5 57. Nb1 Rf2 58. Rh6+ Kc7 59. Bg4 Be8 60. Nc3 Bd6 61. Rh8 Rf8 62. Rh7+ Kb6 63. Rh6 Kc5 64. Na2 Rf1 65. Rh8 Bf8 66. Bf3 g4 67. hxg4 Be7 68. Rxe8 Bg5 69. g3 Rxf3 70. gxh4 Bxh4 71. Rc8+ Kd6 72. Nb4 Rb3 73. Rc6+ Kd7 74. Na6 Be7 75. g5 Re3 76. g6 Rxe4 77. Kg3 Re1 78. Kf2 Re4 79. Kf3 Rf4+ 80. Kg3 Rf5 81. Nb8+ Kd8 82. Re6 Bd6 83. Rxd6+ Kc7 84. Rd7+ Kxb8 85. g7 Rg5+ 86. Kf3 b4 87. Rd8+ Kc7 88. g8Q Rxg8 89. Rxg8 Kd6 90. Ke4 b3 91. Rc8 1-0

[Event "Novi Sad CC Dame"]
[Site "Novi Sad"]
[Date "2017.03.13"]
[Round "1"]
[White "Konstantinov, Aleksandar"]
[Black "Obodchuk, Andrei"]
[Result "1/2-1/2"]
[ECO "E36"]
[WhiteElo "2251"]
[BlackElo "2377"]
[PlyCount "82"]
[EventDate "2017.03.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 dxc4 7. Qxc4 0-0 8. e3 b6 9. Qa4 Bb7 10. Nf3 Nbd7 11. Be2 c5 12. 0-0 a6 13. dxc5 Nxc5 14. Qd1 Qe7 15. b4 Rfd8 16. Bd2 Nce4 17. Qc2 a5 18. Qb2 Nd5 19. Rab1 Nxd2 20. Nxd2 axb4 21. axb4 Ra4 22. b5 Rb4 23. Qa3 Ra8 24. Qd3 Rba4 25. Nf3 e5 26. Qc2 Ra3 27. Rb3 Rc8 28. Qb2 Rxb3 29. Qxb3 Nc3 30. Bc4 Bxf3 31. gxf3 Qg5+ 32. Kh1 Qh5 33. Kg2 Qg6+ 34. Kh1 Ne4 35. Bxf7+ Qxf7 36. Qxf7+ Kxf7 37. fxe4 Rc2 38. Kg2 Rb2 39. Rc1 Rxb5 40. Rc6 Rb2 41. Kg3 Rb4 1/2-1/2

[Event "Thessaloniki Triandria-A 9th"]
[Site "Thessaloniki"]
[Date "2016.05.05"]
[Round "4"]
[White "Konstantinov, Aleksandar"]
[Black "Lajthajm, Borko"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2049"]
[BlackElo "2400"]
[PlyCount "36"]
[EventDate "2016.05.03"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "GRE"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 0-0 5. e4 d6 6. Bd3 e5 7. d5 Bxc3+ 8. bxc3 Nh5 9. Ne2 f5 10. exf5 Bxf5 11. 0-0 Bxd3 12. Qxd3 Nd7 13. Be3 Qh4 14. g3 Qh3 15. Rf2 Ndf6 16. c5 e4 17. fxe4 Ng4 18. Raf1 Rf3 0-1

[Event "Belgrade Trophy 29th"]
[Site "Belgrade"]
[Date "2015.11.30"]
[Round "7"]
[White "Azaric, Slavko"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2336"]
[BlackElo "2055"]
[PlyCount "91"]
[EventDate "2015.11.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 0-0 8. Bd3 Qa5 9. Ne2 Ng6 10. 0-0 c4 11. Bxg6 fxg6 12. h4 Nc6 13. a4 Bd7 14. Ba3 Rf7 15. Bd6 Ne7 16. Rfb1 b6 17. Bb4 Qa6 18. a5 b5 19. Qg5 Nf5 20. h5 gxh5 21. Qxh5 Ne7 22. Qh4 Ng6 23. Qg5 Qc8 24. g3 Qe8 25. Kg2 Rf5 26. Qe3 Nf8 27. Rh1 Rh5 28. Nf4 Rxh1 29. Rxh1 Ng6 30. Nh5 Qf7 31. g4 Nf8 32. Nf4 Ng6 33. Nh5 Nf8 34. Qg5 Qg6 35. Qxg6 hxg6 36. Nf4 g5 37. Nh3 Nh7 38. Be7 Kf7 39. Bxg5 b4 40. cxb4 c3 41. Bc1 Ba4 42. Ng1 Nf8 43. Rh3 Rc8 44. Ne2 Rc4 45. Rxc3 Rxb4 46. Ba3 1-0

[Event "Belgrade Trophy 29th"]
[Site "Belgrade"]
[Date "2015.11.29"]
[Round "6"]
[White "Konstantinov, Aleksandar"]
[Black "Djokic, Nebojsa"]
[Result "0-1"]
[ECO "E92"]
[WhiteElo "2055"]
[BlackElo "2245"]
[PlyCount "54"]
[EventDate "2015.11.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. d5 Na6 8. Nd2 c6 9. Nb3 Ne8 10. g4 f5 11. gxf5 gxf5 12. exf5 Bxf5 13. a3 Qh4 14. Be3 Kh8 15. Qd2 Bg6 16. 0-0-0 cxd5 17. Nxd5 Rc8 18. Rhg1 Qe4 19. Nc3 Rxc4 20. Bxc4 Qxc4 21. Qd5 Qc7 22. Nd2 Bf7 23. Qb5 d5 24. Bxa7 d4 25. Bb6 Qc8 26. Nde4 dxc3 27. Nxc3 Bg6 0-1

[Event "Belgrade Trophy 29th"]
[Site "Belgrade"]
[Date "2015.11.28"]
[Round "5"]
[White "Lazic, Ljubisa V"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2201"]
[BlackElo "2055"]
[PlyCount "26"]
[EventDate "2015.11.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. c3 Nf6 4. Bf4 Nc6 5. e3 Qb6 6. Qb3 c4 7. Qc2 Bf5 8. Qd1 e6 9. Nbd2 Be7 10. h3 0-0 11. Be2 Rfc8 12. Nh4 Be4 13. Ndf3 Bf5 1/2-1/2

[Event "Belgrade Trophy 29th"]
[Site "Belgrade"]
[Date "2015.11.25"]
[Round "2"]
[White "Konstantinov, Aleksandar"]
[Black "Garic, Radomir"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2055"]
[BlackElo "2253"]
[PlyCount "92"]
[EventDate "2015.11.24"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SRB"]
[SourceTitle "CBM 170 Extra"]
[Source "ChessBase"]
[SourceDate "2016.02.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.02.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 Bg7 5. e4 0-0 6. Be2 b5 7. Bxb5 Nxe4 8. Nxe4 Qa5+ 9. Nc3 Bxc3+ 10. bxc3 Qxb5 11. Qd3 Ba6 12. Qxb5 Bxb5 13. Bh6 Re8 14. 0-0-0 d6 15. Rhe1 Nd7 16. Nd2 Nb6 17. Re4 f6 18. c4 Ba6 19. Rde1 Kf7 20. h4 Rab8 21. g4 Bc8 22. R1e3 Bd7 23. Ra3 Rb7 24. Nb3 e5 25. Na5 Rc7 26. Rf3 Rg8 27. Bg5 f5 28. Re1 Ke8 29. gxf5 gxf5 30. Rfe3 Kf7 31. f4 e4 32. h5 Bc8 33. Kd2 Ba6 34. Kc3 Ke8 35. h6 Kf7 36. Rg3 Rg6 37. Rge3 Rc8 38. Rh1 Re8 39. Rh5 Rb8 40. Bh4 Na4+ 41. Kd2 Rg2+ 42. Re2 e3+ 43. Kd3 Nb2+ 44. Kxe3 Re8+ 45. Kf3 Rexe2 46. Rxf5+ Ke8 0-1

[Event "Chalkidiki op"]
[Site "Chalkidiki"]
[Date "2015.07.16"]
[Round "6"]
[White "Konstantinov, Aleksandar"]
[Black "Koumtzis, Argirios"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1857"]
[BlackElo "1754"]
[PlyCount "78"]
[EventDate "2015.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 e6 2. c4 b6 3. Nc3 Bb7 4. Nf3 f5 5. e3 Nf6 6. Bd3 Ne4 7. Bd2 Be7 8. Qc2 Nxd2 9. Nxd2 0-0 10. f3 Nc6 11. a3 Bh4+ 12. g3 Bg5 13. Nf1 Bxe3 14. Nxe3 Nxd4 15. Qf2 Nxf3+ 16. Kd1 Ne5 17. Kc2 Nxd3 18. Kxd3 Bxh1 19. Rxh1 c6 20. Kc2 d5 21. Rd1 Qf6 22. Ng2 Rfd8 23. cxd5 cxd5 24. Kb1 d4 25. Ne2 e5 26. Ne1 Rac8 27. h4 g6 28. g4 Rc6 29. g5 Qe6 30. Qg2 Qd5 31. Qg3 Qe4+ 32. Qd3 Qxd3+ 33. Rxd3 Kf7 34. Nc2 Ke6 35. h5 Kf7 36. Ne1 Rcd6 37. Nc2 gxh5 38. Ng3 Kg6 39. Ne1 e4 0-1

[Event "Chalkidiki op"]
[Site "Chalkidiki"]
[Date "2015.07.15"]
[Round "5"]
[White "Yildiz Kadioglu, Betul Cemre"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2318"]
[BlackElo "1857"]
[PlyCount "75"]
[EventDate "2015.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. dxc5 Bxc5 6. Ngf3 Nf6 7. Bc4 Qh5 8. 0-0 0-0 9. Qe2 Nbd7 10. Nb3 Bd6 11. Rd1 Bc7 12. h3 a6 13. Nfd4 Qxe2 14. Bxe2 Nb6 15. c3 e5 16. Nc2 Bf5 17. Ne3 Be4 18. Nc5 Bc6 19. Nf5 Rfe8 20. Nd6 Bxd6 21. Rxd6 Rad8 22. Nxb7 Rxd6 23. Nxd6 Rd8 24. Nf5 Rd7 25. Bg5 Na4 26. Bxa6 Ra7 27. Rd1 h6 28. Bxf6 gxf6 29. Bc8 Nxb2 30. Rd8+ Kh7 31. Ng3 h5 32. Bf5+ Kh6 33. Rh8+ Kg7 34. Rb8 Nd1 35. Nxh5+ Kh6 36. Rh8+ Kg5 37. Ng7 Rxa2 38. g3 1-0

[Event "Chalkidiki op"]
[Site "Chalkidiki"]
[Date "2015.07.14"]
[Round "4"]
[White "Konstantinov, Aleksandar"]
[Black "Gountintas, Haralabos"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "1857"]
[BlackElo "1776"]
[PlyCount "101"]
[EventDate "2015.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 Nf8 10. 0-0-0 Be6 11. Nf4 h6 12. Bxf6 Bxf6 13. Qb3 c6 14. Qxb7 Qd6 15. Qa6 Reb8 16. Rd2 Bc8 17. Qa4 a5 18. a3 Bd7 19. Qc2 Bxd4 20. Nfxd5 cxd5 21. exd4 a4 22. Bf5 Rb3 23. Bxd7 Qxd7 24. Re1 Rab8 25. Qd1 Qb7 26. Qc2 Qd7 27. Qd3 Qb7 28. Ree2 Ne6 29. Qf5 Nf4 30. Re5 Rxb2 31. Qxf4 Rb1+ 32. Kc2 Qb3+ 33. Kd3 Qc4+ 34. Ke3 Qxc3+ 35. Ke2 Qc4+ 36. Kf3 R1b3+ 37. Kg4 Qc8+ 38. Qf5 Qc3 39. Qf4 Qc8+ 40. Qf5 Qc3 41. Qf4 g5 42. Rxg5+ hxg5 43. Qxg5+ Kf8 44. Qh6+ Ke8 45. Re2+ Kd7 46. Qf6 Rg8+ 47. Kh4 Rd8 48. Re7+ Kc8 49. Qa6+ Kb8 50. Qa7+ Kc8 51. Qa8+ 1-0

[Event "Chalkidiki op"]
[Site "Chalkidiki"]
[Date "2015.07.13"]
[Round "3"]
[White "Kadioglu, Cem"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "C07"]
[WhiteElo "1725"]
[BlackElo "1857"]
[PlyCount "62"]
[EventDate "2015.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. 0-0 Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Qxd4 Qxd4 11. Nxd4 a6 12. a4 Bc5 13. Nf3 Bd7 14. Ne5 Rc8 15. Nxd7 Nxd7 16. Be2 Ke7 17. Rd1 h6 18. c3 Ba7 19. Bf4 Bb8 20. Bxb8 Rxb8 21. Rd2 Nc5 22. Rad1 Nxa4 23. Bf3 Nb6 24. b3 Rhc8 25. c4 Rc7 26. Rd6 Nd5 27. Bxd5 Kxd6 28. Bxb7+ Ke7 29. Bxa6 Rxb3 30. Bb5 Rb2 31. g3 Ra7 0-1

[Event "Chalkidiki op"]
[Site "Chalkidiki"]
[Date "2015.07.12"]
[Round "2"]
[White "Konstantinov, Aleksandar"]
[Black "Belous, Vladimir"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "1857"]
[BlackElo "2561"]
[PlyCount "64"]
[EventDate "2015.07.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 0-0 5. Nge2 c6 6. a3 Ba5 7. Qc2 d5 8. cxd5 exd5 9. Ng3 Re8 10. Bd3 Nbd7 11. 0-0 Nf8 12. b4 Bc7 13. b5 h5 14. bxc6 bxc6 15. Na4 h4 16. Ne2 Qd6 17. f4 Ne4 18. Bxe4 Rxe4 19. Nc5 Re8 20. Kh1 Nh7 21. Ng1 Ng5 22. Nf3 Nxf3 23. Rxf3 Qf6 24. Bd2 Bf5 25. Qa4 Bb6 26. Rc1 Bxc5 27. Rxc5 Be4 28. Rxc6 Qf5 29. Rf2 h3 30. Kg1 hxg2 31. Rc1 Re6 32. Qd7 Qh5 0-1

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.20"]
[Round "9"]
[White "Konstantinov, Aleksandar"]
[Black "Petkov, Hristo"]
[Result "0-1"]
[ECO "B42"]
[WhiteElo "1855"]
[BlackElo "2053"]
[PlyCount "70"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Bd3 Nc6 6. Be3 a6 7. Nd2 d6 8. c3 Be7 9. Qe2 0-0 10. Rg1 Qc7 11. g4 d5 12. g5 Nxe4 13. Nxe4 dxe4 14. Bxe4 Nxd4 15. Bxd4 g6 16. h4 e5 17. Be3 Be6 18. h5 Rad8 19. f3 Bc5 20. Qf2 Bxe3 21. Qxe3 Rd6 22. Rh1 Rfd8 23. hxg6 fxg6 24. Rh2 Qd7 25. Qe2 Qf7 26. b3 b5 27. Qe3 Qd7 28. Qe2 Qa7 29. Rg2 Qc5 30. Rc1 b4 31. c4 a5 32. Rf2 Rd2 33. Qxd2 Rxd2 34. Rxd2 Qg1+ 35. Ke2 Qxc1 0-1

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.19"]
[Round "8"]
[White "Subbotsky, Mikhail"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2031"]
[BlackElo "1855"]
[PlyCount "56"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nd2 bxc4 5. e4 d6 6. Bxc4 g6 7. Ngf3 Bg7 8. 0-0 0-0 9. Qc2 Nbd7 10. Nb3 Ng4 11. Bd2 Nge5 12. Nxe5 Nxe5 13. Bb5 Qb6 14. a4 a6 15. Be2 Rb8 16. Ra3 c4 17. Bxc4 Nxc4 18. Qxc4 Bxb2 19. Ra2 Qxb3 20. Qxb3 Rxb3 21. Rb1 Bd7 22. Raxb2 Rxb2 23. Rxb2 Bxa4 24. Rb7 Re8 25. Ra7 Bb5 26. h4 f6 27. Kh2 Kf7 28. Bb4 Rd8 1/2-1/2

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.18"]
[Round "7"]
[White "Konstantinov, Aleksandar"]
[Black "Triboulin, Boyann"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "1855"]
[BlackElo "1694"]
[PlyCount "109"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. Nxd4 d6 6. 0-0 Nf6 7. Nc3 0-0 8. Bf4 Ne5 9. Bb3 a6 10. Qe2 Bg4 11. f3 c5 12. Nf5 Bxf5 13. exf5 Qc7 14. Nd5 Nxd5 15. Bxd5 Rfe8 16. Qf2 Nc6 17. c3 Bf6 18. Rad1 Rad8 19. g4 Ne7 20. Be4 h6 21. Qd2 Be5 22. c4 Qb6 23. b3 Bd4+ 24. Kh1 d5 25. Bd3 Nc6 26. cxd5 Rxd5 27. f6 Nb4 28. Be4 Rdd8 29. fxg7 Bxg7 30. Qe2 Nd5 31. Rxd5 Rxd5 32. Bh7+ Kf8 33. Be4 Rd4 34. Qf2 Rdd8 35. Qg3 Rd7 36. Bf5 Rd5 37. Rc1 Red8 38. Bc7 Rd1+ 39. Kg2 R8d2+ 40. Kh3 Qc6 41. Rxd1 Rxd1 42. Be4 Qb5 43. Bf4 Qd7 44. Be3 b6 45. Qb8+ Qd8 46. Qb7 a5 47. Bf4 Rd7 48. Qc6 f6 49. Bg6 Kg8 50. Qe6+ Kh8 51. Be4 Re7 52. Qf5 Qg8 53. Bd6 Re8 54. Qg6 Rc8 55. Bf4 1-0

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.17"]
[Round "6"]
[White "Janev, Pavel"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "B20"]
[WhiteElo "2046"]
[BlackElo "1855"]
[PlyCount "39"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. b4 cxb4 3. a3 bxa3 4. Bxa3 d5 5. exd5 Qxd5 6. Nc3 Qe5+ 7. Be2 Bg4 8. d4 Bxe2 9. Ngxe2 Qf5 10. 0-0 Nf6 11. d5 Na6 12. Re1 Rd8 13. Nd4 Qc8 14. Qe2 Rd7 15. d6 e6 16. Nxe6 fxe6 17. Qxe6+ Kd8 18. Nd5 Qc4 19. Bb2 Kc8 20. Ne7+ 1-0

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.16"]
[Round "5"]
[White "Konstantinov, Aleksandar"]
[Black "Yordanov, Lachezar"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1855"]
[BlackElo "1659"]
[PlyCount "57"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bc4 Nxd5 4. Ne2 Nc6 5. 0-0 e5 6. d4 Nb6 7. Bb5 exd4 8. Nxd4 Bd7 9. Re1+ Be7 10. Bxc6 bxc6 11. Qe2 c5 12. Nb3 Be6 13. Rd1 Nd7 14. Be3 Qc8 15. Nc3 0-0 16. Ne4 Bxb3 17. axb3 Re8 18. Qg4 Nf6 19. Nxf6+ Bxf6 20. Qxc8 Rexc8 21. c3 c4 22. bxc4 a6 23. Bd4 Bg5 24. b4 Kf8 25. Ra5 Be7 26. c5 c6 27. Rda1 g6 28. Rxa6 Rxa6 29. Rxa6 1-0

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.14"]
[Round "4"]
[White "Samoun, Florent"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2190"]
[BlackElo "1855"]
[PlyCount "97"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 Be7 7. Nbd2 0-0 8. Nf1 b5 9. Bc2 d5 10. Qe2 dxe4 11. dxe4 Bb7 12. Ng3 b4 13. 0-0 a5 14. Qb5 Qd7 15. Nxe5 Nxe5 16. Qxe5 Bd6 17. Qf5 Qxf5 18. exf5 Rfe8 19. Ba4 Re7 20. Bg5 bxc3 21. Bxf6 gxf6 22. bxc3 Bd5 23. Rfd1 Bc4 24. Rd4 Ba6 25. Rad1 Be5 26. Rd7 Rxd7 27. Rxd7 Bc4 28. Bb3 Bxb3 29. axb3 Rb8 30. c4 Rxb3 31. f4 Bd6 32. Rd8+ Bf8 33. Nh5 Rb6 34. Ra8 Rc6 35. Kf2 Rxc4 36. Nxf6+ Kg7 37. Nh5+ Kg8 38. Rxa5 c5 39. Ra8 Rc2+ 40. Kf3 c4 41. f6 c3 42. Ng3 h5 43. Nf5 Rc1 44. Ne7+ Kh7 45. Rxf8 Rf1+ 46. Ke2 c2 47. Rxf7+ Kh6 48. Rg7 h4 49. Nf5+ 1-0

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.13"]
[Round "3"]
[White "Konstantinov, Aleksandar"]
[Black "Sarbu, Zeno Iulius"]
[Result "1-0"]
[ECO "B84"]
[WhiteElo "1855"]
[PlyCount "29"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 Nf6 7. 0-0 d6 8. Kh1 Be7 9. f4 Nbd7 10. Bf3 0-0 11. g4 e5 12. Nf5 Nc5 13. g5 Ne8 14. Nd5 Bxf5 15. Nxc7 1-0

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.12"]
[Round "2"]
[White "Sarkizov, Hari"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "E61"]
[BlackElo "1855"]
[PlyCount "92"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. e3 g6 4. Nf3 Bg7 5. Be2 0-0 6. 0-0 d6 7. Nc3 Nc6 8. d5 Nb8 9. e4 Nbd7 10. h3 a6 11. Qc2 Ne8 12. Nh2 Nc7 13. f4 Rb8 14. a4 Qe8 15. Ra3 e6 16. g4 exd5 17. Nxd5 Nxd5 18. exd5 f5 19. gxf5 Rxf5 20. Kh1 Rf7 21. Re3 Re7 22. Rff3 Bd4 23. Rxe7 Qxe7 24. f5 Ne5 25. Rg3 Qh4 26. Rg2 Qxh3 27. fxg6 Bf5 28. gxh7+ Kh8 29. Qd2 Be4 30. Qg5 Qxg2+ 31. Qxg2 Bxg2+ 32. Kxg2 Kxh7 33. Nf3 Rg8+ 34. Kh3 Nxf3 35. Bxf3 Rg1 36. Bf4 Be5 37. Bxe5 dxe5 38. Bg4 Kg7 39. Bc8 e4 40. Kh2 Rg5 41. d6 Kf6 42. Bxb7 e3 43. d7 Ke7 44. Bf3 Kxd7 45. Kh3 Ke6 46. Kh4 Rg2 0-1

[Event "Varna op 6th"]
[Site "Varna"]
[Date "2012.07.11"]
[Round "1"]
[White "Konstantinov, Aleksandar"]
[Black "Van der Togt, Twan"]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "1855"]
[PlyCount "52"]
[EventDate "2012.07.11"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 149 Extra"]
[Source "ChessBase"]
[SourceDate "2012.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c4 Nf6 4. Nc3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Be2 0-0 8. 0-0 Nc6 9. Nxc6 bxc6 10. Be3 Qc7 11. Qc2 Bb7 12. b4 d5 13. exd5 cxd5 14. Nb5 Qb8 15. Bxa7 Rxa7 16. Nxa7 Qxa7 17. a4 dxc4 18. Qxc4 Bd5 19. Qh4 Qb7 20. f3 Nh5 21. Rab1 Qa7+ 22. Kh1 Qxa4 23. Rfd1 Bf6 24. Qg4 Be6 25. Qe4 Bf5 26. Qc4 Bxb1 0-1

[Event "Sofia MGU op 54th"]
[Site "Sofia"]
[Date "2012.04.01"]
[Round "5"]
[White "Konstantinov, Aleksandar"]
[Black "Metev, Martin"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1897"]
[BlackElo "2042"]
[PlyCount "100"]
[EventDate "2012.03.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Qe7+ 6. Be3 Nf6 7. 0-0 Bg4 8. Bg5 0-0 9. Re1 Bxf3 10. gxf3 Qd7 11. Bh4 Nc6 12. c3 Nh5 13. Bg3 Nf4 14. Bf1 Nh3+ 15. Bxh3 Qxh3 16. Qd3 Rae8 17. Nd2 Ne7 18. Qf1 Qh6 19. Nb3 Nf5 20. Rxe8 Rxe8 21. Re1 Re6 22. Rxe6 Qxe6 23. Nc5 Bxc5 24. dxc5 c6 25. Qd3 f6 26. Kf1 Kf7 27. Qe2 d4 28. Qxe6+ Kxe6 29. c4 d3 30. Ke1 Nxg3 31. fxg3 Ke5 32. Kd2 Kd4 33. b3 Kxc5 34. Kxd3 Kb4 35. Kc2 Ka3 36. Kb1 a5 37. Kc2 Kxa2 38. c5 Ka3 39. Kc3 a4 40. b4 h5 41. g4 h4 42. f4 Ka2 43. Kc2 g6 44. h3 Ka1 45. f5 gxf5 46. gxf5 Ka2 47. Kc3 Ka3 48. Kc4 Kb2 49. b5 a3 50. Kb4 a2 0-1

[Event "Sofia MGU op 54th"]
[Site "Sofia"]
[Date "2012.04.01"]
[Round "4"]
[White "Konstantinov, Aleksandar"]
[Black "Stoyanov, Svetlomir"]
[Result "1/2-1/2"]
[ECO "C05"]
[WhiteElo "1897"]
[BlackElo "2053"]
[PlyCount "74"]
[EventDate "2012.03.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. exd5 exd5 5. Ngf3 Bg4 6. Be2 Bd6 7. 0-0 0-0 8. Re1 Re8 9. Nf1 Ne4 10. Ng3 Nd7 11. c4 Bb4 12. Bd2 Nxd2 13. Nxd2 Bxe2 14. Rxe2 Rxe2 15. Qxe2 dxc4 16. Nxc4 Nb6 17. a3 Qxd4 18. Nxb6 axb6 19. Rd1 Qf4 20. axb4 Qxb4 21. Qd2 Qxd2 22. Rxd2 Ra1+ 23. Nf1 Kf8 24. Rd7 Rc1 25. g3 Ke8 26. Rd2 c6 27. Kg2 Ke7 28. Ne3 g6 29. f4 Ke6 30. g4 Re1 31. Kf2 Rh1 32. Kf3 h5 33. g5 f6 34. gxf6 Kxf6 35. Ke4 h4 36. Rg2 Re1 37. Kf3 b5 1/2-1/2

[Event "Sofia MGU op 54th"]
[Site "Sofia"]
[Date "2012.03.31"]
[Round "3"]
[White "Kamenov, Valentin"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1979"]
[BlackElo "1897"]
[PlyCount "56"]
[EventDate "2012.03.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Bc4 c6 5. Nc3 cxd5 6. Nxd5 e6 7. Nxf6+ Qxf6 8. d4 Bc6 9. Kf1 Nd7 10. Nh3 h6 11. Be3 Nb6 12. Qd3 a6 13. Bb3 Rc8 14. c4 Nd5 15. Re1 Bb4 16. Bd2 0-0 17. Bc2 g6 18. Bxh6 Bxe1 19. Bxf8 Rxf8 20. Qb3 Nb4 21. Bb1 Bd2 22. a3 Nd5 23. cxd5 Bxd5 24. Qd3 Bh6 25. f3 Rc8 26. Kf2 Qh4+ 27. g3 Qxh3 28. Qe2 Rc1 0-1

[Event "Sofia MGU op 54th"]
[Site "Sofia"]
[Date "2012.03.31"]
[Round "2"]
[White "Konstantinov, Aleksandar"]
[Black "Andreev, Dobrotich"]
[Result "1-0"]
[ECO "B18"]
[WhiteElo "1897"]
[BlackElo "2043"]
[PlyCount "95"]
[EventDate "2012.03.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. Bd3 e6 8. 0-0 Ngf6 9. Re1 Be7 10. c3 0-0 11. Bxg6 hxg6 12. Bg5 Qc7 13. Qe2 Bd6 14. Ne5 Nh7 15. Nf3 Nxg5 16. Nxg5 Bf4 17. Qg4 Nf6 18. Qh4 Bxg5 19. Qxg5 Rfd8 20. Ne4 Nxe4 21. Rxe4 Rd5 22. Qe3 Rad8 23. Re1 c5 24. dxc5 Qxc5 25. g3 Qc7 26. a3 b6 27. Re2 R5d7 28. Kg2 Qc6 29. Qf3 f5 30. R4e3 Qxf3+ 31. Kxf3 Rd3 32. Kf4 Rxe3 33. Kxe3 Kf7 34. f4 Kf6 35. Rd2 Rxd2 36. Kxd2 g5 37. Ke3 gxf4+ 38. gxf4 g5 39. fxg5+ Kxg5 40. c4 Kg4 41. b4 e5 42. c5 bxc5 43. bxc5 f4+ 44. Kf2 Kf5 45. h4 e4 46. c6 Kg4 47. c7 e3+ 48. Ke2 1-0

[Event "Sofia MGU op 53rd"]
[Site "Sofia"]
[Date "2012.03.04"]
[Round "4"]
[White "Dochev, Delyan"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "D47"]
[WhiteElo "1709"]
[BlackElo "1855"]
[PlyCount "90"]
[EventDate "2012.03.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. 0-0 Be7 10. a3 a6 11. e4 c5 12. e5 Nd5 13. Nxd5 Bxd5 14. Be3 cxd4 15. Bxd4 Nc5 16. Bxc5 Bxc5 17. Rc1 Bb6 18. Qe2 0-0 19. Rfd1 Qe7 20. h3 Rac8 21. Rc2 Bb3 22. Bxh7+ Kxh7 23. Qd3+ g6 24. Qxb3 Rxc2 25. Qxc2 Rd8 26. Rxd8 Qxd8 27. h4 Kg7 28. Kh2 Qd5 29. b3 Bd4 30. Qe2 Bb6 31. Qb2 Bc7 32. Qc3 Bb8 33. g3 Qe4 34. Qe3 Qf5 35. Qf4 Qxf4 36. gxf4 Ba7 37. Kg3 f6 38. Nd2 f5 39. Nf1 a5 40. a4 bxa4 41. bxa4 Bc5 42. Ne3 Bxe3 43. fxe3 Kh6 44. Kg2 Kh5 45. Kh3 Kh6 1/2-1/2

[Event "Sofia MGU op 53rd"]
[Site "Sofia"]
[Date "2012.03.04"]
[Round "6"]
[White "Kamenov, Valentin"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1834"]
[BlackElo "1855"]
[PlyCount "42"]
[EventDate "2012.03.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 Bg4 6. Nf3 Nbd7 7. h3 Bh5 8. g4 Bg6 9. Nh4 e6 10. Bd2 c6 11. Nxg6 hxg6 12. Qe2 Bb4 13. 0-0-0 0-0-0 14. Qf3 Nb6 15. Bb3 Rxd4 16. g5 Nfd5 17. Qxf7 Nxc3 18. Bxe6+ Kb8 19. Bxc3 Bxc3 20. bxc3 Qa3+ 21. Kb1 Na4 0-1

[Event "Sofia MGU op 53rd"]
[Site "Sofia"]
[Date "2012.03.04"]
[Round "5"]
[White "Konstantinov, Aleksandar"]
[Black "Ruschukov, Boyan"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "1855"]
[BlackElo "1968"]
[PlyCount "35"]
[EventDate "2012.03.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. Bc4 e6 6. Nc3 Nc6 7. Qd3 b5 8. Bb3 b4 9. Ne2 Nf6 10. Bg5 h6 11. Bh4 Be7 12. 0-0-0 0-0 13. Bxf6 gxf6 14. Nf4 Na5 15. Kb1 Bd7 16. Nh5 Qb6 17. Nd4 Nxb3 18. Qg3+ 1-0

[Event "Sofia MGU op 53rd"]
[Site "Sofia"]
[Date "2012.03.03"]
[Round "1"]
[White "Konstantinov, Aleksandar"]
[Black "Andreev, Dobrotich"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "1855"]
[BlackElo "2073"]
[PlyCount "69"]
[EventDate "2012.03.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. b3 d5 2. Bb2 c5 3. Nf3 Nc6 4. e3 e6 5. Be2 Nf6 6. 0-0 Be7 7. a3 0-0 8. d4 cxd4 9. Nxd4 Ne4 10. Nd2 f5 11. N2f3 Bf6 12. c4 Nxd4 13. Bxd4 Bxd4 14. Qxd4 dxc4 15. Bxc4 Qxd4 16. Nxd4 Nd2 17. Bxe6+ Bxe6 18. Nxe6 Rf6 19. Rfd1 Nxb3 20. Rab1 Rxe6 21. Rxb3 Re7 22. Rdb1 Rc8 23. g3 b6 24. Kg2 Kf7 25. Kf3 Rc2 26. R1b2 Rcc7 27. g4 g6 28. gxf5 gxf5 29. Kg3 Kf6 30. h3 Rg7+ 31. Kf3 Rc4 32. Rb4 Rgc7 33. Kg3 Ke5 34. Kf3 R4c5 35. Ke2 1-0

[Event "Sofia MGU op 53rd"]
[Site "Sofia"]
[Date "2012.03.03"]
[Round "3"]
[White "Konstantinov, Aleksandar"]
[Black "Burdarev, Evgeni"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1855"]
[BlackElo "2011"]
[PlyCount "99"]
[EventDate "2012.03.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Bd6 5. Nf3 Nf6 6. 0-0 0-0 7. Bg5 h6 8. Bh4 c6 9. Nbd2 Nbd7 10. c4 g5 11. Bg3 Bxg3 12. hxg3 Re8 13. Qc2 Nf8 14. Rfe1 Ne6 15. Bf5 Bd7 16. Bxe6 Bxe6 17. c5 Nd7 18. Ne5 Qf6 19. Ndf3 Bf5 20. Qc3 Nxe5 21. Nxe5 Re7 22. Re3 Rae8 23. Rae1 Qg7 24. g4 Bc8 25. f3 f6 26. Nc4 dxc4 27. Qxc4+ Qf7 28. Rxe7 Rxe7 29. Qc3 Rxe1+ 30. Qxe1 Qe6 31. Qa5 Qe3+ 32. Kh1 Qxd4 33. Qxa7 Qxb2 34. Qa5 Qd4 35. Qa8 Qd8 36. a4 Kf7 37. a5 Ke6 38. a6 bxa6 39. Qxc6+ Kf7 40. Qe4 Kg7 41. c6 Qc7 42. Qc4 a5 43. Qb5 Kf8 44. Qc5+ Kf7 45. Qc2 Kg7 46. Qc5 Kf7 47. Qc2 Ke6 48. Qf5+ Ke7 49. Qh7+ Kd6 50. Qxh6 1/2-1/2

[Event "Sofia MGU op 53rd"]
[Site "Sofia"]
[Date "2012.03.03"]
[Round "2"]
[White "Orev, Petar"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2212"]
[BlackElo "1855"]
[PlyCount "53"]
[EventDate "2012.03.03"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 c6 2. c4 e6 3. d4 d5 4. Nc3 dxe4 5. f3 e3 6. Bxe3 Nf6 7. Bd3 Qa5 8. Nge2 Bd6 9. 0-0 Qc7 10. g3 Nh5 11. Ne4 b6 12. N2c3 Bxg3 13. hxg3 Nxg3 14. Rf2 Nf5 15. Qd2 Nd7 16. c5 Bb7 17. Bf4 e5 18. dxe5 Nxe5 19. Nd6+ Nxd6 20. cxd6 Nxf3+ 21. Rxf3 Qd7 22. Re3+ Kf8 23. Qe2 g5 24. Re7 Qh3 25. Rxb7 Re8 26. Re7 Rd8 27. Be5 1-0

[Event "Sofia MGU op 51st"]
[Site "Sofia"]
[Date "2012.02.12"]
[Round "5"]
[White "Konstantinov, Aleksandar"]
[Black "Stoyanov, Svetlomir"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "1855"]
[PlyCount "105"]
[EventDate "2012.02.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. Nf3 Bg4 6. c3 Nf6 7. Bf4 e6 8. Nbd2 Bd6 9. Bxd6 Qxd6 10. Qb3 0-0 11. 0-0 a6 12. Rfe1 b5 13. Ne5 Bh5 14. a3 Na5 15. Qb4 Qc7 16. Nb3 Nxb3 17. Qxb3 Nd7 18. Qc2 Bg6 19. f4 Nxe5 20. Rxe5 Bxd3 21. Qxd3 g6 22. Rae1 Qc4 23. Qe2 Qxe2 24. R1xe2 a5 25. g4 b4 26. axb4 axb4 27. f5 bxc3 28. bxc3 Ra1+ 29. Kg2 Rc1 30. R2e3 Rc2+ 31. Kg3 gxf5 32. gxf5 Rc8 33. fxe6 fxe6 34. Rxe6 R8xc3 35. Rxc3 Rxc3+ 36. Kf4 Rh3 37. Ke5 Rh5+ 38. Kf6 Rh6+ 39. Ke5 Rh5+ 40. Kd6 Kf7 41. Re7+ Kf8 42. Re5 Rxh2 43. Kxd5 Ra2 44. Ke6 Ra6+ 45. Kf5 Rd6 46. d5 Kf7 47. Ke4 Ra6 48. Rh5 Kg6 49. Rh2 h5 50. Ke5 Ra1 51. d6 Rd1 52. Ke6 Kg5 53. d7 1-0

[Event "Sofia MGU op 51st"]
[Site "Sofia"]
[Date "2012.02.12"]
[Round "4"]
[White "Spasov, Ivaylo"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "1811"]
[BlackElo "1855"]
[PlyCount "32"]
[EventDate "2012.02.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. d4 Qxd5 4. Nf3 Bg4 5. Be2 Nc6 6. 0-0 0-0-0 7. c4 Qh5 8. Be3 e5 9. d5 e4 10. Nd4 Nxd4 11. Bxg4+ Nxg4 12. h3 Nf3+ 13. gxf3 Nxe3 14. fxe3 Qxh3 15. Nd2 Qg3+ 16. Kh1 Rd6 0-1

[Event "Sofia MGU op 51st"]
[Site "Sofia"]
[Date "2012.02.11"]
[Round "3"]
[White "Konstantinov, Aleksandar"]
[Black "Krustev, Goran"]
[Result "1/2-1/2"]
[ECO "B34"]
[WhiteElo "1855"]
[BlackElo "2005"]
[PlyCount "120"]
[EventDate "2012.02.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Qa5 7. Qd2 Nf6 8. Be2 Nxe4 9. Nxe4 Qxd2+ 10. Kxd2 Bxd4 11. c3 Bxe3+ 12. Kxe3 d5 13. Nc5 0-0 14. h4 e5 15. g4 d4+ 16. Kd2 b6 17. Ne4 f5 18. gxf5 Bxf5 19. Bc4+ Kg7 20. f3 Bxe4 21. fxe4 Rf2+ 22. Kd3 Raf8 23. Bd5 Na5 24. Rh3 R8f3+ 25. Rxf3 Rxf3+ 26. Kc2 d3+ 27. Kd2 b5 28. b3 Kh6 29. a4 Rf2+ 30. Kxd3 Rf3+ 31. Kc2 Rf2+ 32. Kd3 Rf3+ 33. Kc2 bxa4 34. Rxa4 Rf2+ 35. Kc1 Nxb3+ 36. Bxb3 Rf4 37. Bd5 Rxh4 38. Rxa7 g5 39. Be6 g4 40. Bf5 Kg5 41. Rg7+ Kf4 42. c4 g3 43. c5 Rh6 44. Bd7 Ra6 45. c6 Ra7 46. Rf7+ Ke3 47. Rxh7 g2 48. Rg7 Kf2 49. Rf7+ Ke2 50. Rg7 Kf2 51. Kc2 g1Q 52. Rxg1 Kxg1 53. Kc3 Kf2 54. Kc4 Ke3 55. Bf5 Ra1 56. Kd5 Rc1 57. Kd6 Kf4 58. c7 Rd1+ 59. Ke7 Rc1 60. Kd8 Rd1+ 1/2-1/2

[Event "Sofia MGU op 51st"]
[Site "Sofia"]
[Date "2012.02.11"]
[Round "1"]
[White "Konstantinov, Aleksandar"]
[Black "Stanchev, Plamen"]
[Result "0-1"]
[ECO "B02"]
[WhiteElo "1855"]
[BlackElo "1847"]
[PlyCount "61"]
[EventDate "2012.02.11"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BUL"]
[SourceTitle "CBM 147 Extra"]
[Source "ChessBase"]
[SourceDate "2012.04.24"]
[SourceVersion "1"]
[SourceVersionDate "2012.04.24"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nxd5 Qxd5 5. Nf3 Bg4 6. Be2 Nc6 7. 0-0 0-0-0 8. c3 e5 9. d4 exd4 10. cxd4 Nxd4 11. Nxd4 Bxe2 12. Qxe2 Qxd4 13. Be3 Qe4 14. Qb5 a6 15. Qb3 Qd5 16. Qc3 Bd6 17. Rfd1 Qe5 18. g3 Kb8 19. Rac1 Rc8 20. Bf4 Qf6 21. Be3 h5 22. h4 Qe6 23. Kg2 Rhe8 24. Rd4 Re7 25. Rc4 Qd5+ 26. Kg1 Bxg3 27. Qb3 Qe6 28. Ba7+ Kxa7 29. Qxg3 c6 30. Qa3 Qe5 31. Rc5 0-1

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.10"]
[Round "9"]
[White "Konstantinov, Aleksandar"]
[Black "Getov, Borislav"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1869"]
[PlyCount "110"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Bxf3 5. gxf3 dxe5 6. Qxd8+ Kxd8 7. Bc4 f6 8. Nc3 Bb4 9. Bd2 Nc6 10. a3 Bxc3 11. Bxc3 Nd4 12. 0-0-0 c5 13. f4 Kc7 14. fxe5 fxe5 15. f4 Re8 16. fxe5 Rxe5 17. Bxd4 cxd4 18. Rxd4 Nf6 19. Bd3 Rhe8 20. Rg1 g6 21. Rf1 Nd7 22. Rf7 R5e7 23. Rxe7 Rxe7 24. Rc4+ Kd6 25. Kd1 Nf6 26. Ke2 Ke5 27. Kf3 b6 28. Rb4 Kd6 29. Kf4 Nh5+ 30. Kg5 Re5+ 31. Kg4 Nf6+ 32. Kf4 Nh5+ 33. Kf3 Nf6 34. Rd4+ Kc7 35. b4 Rh5 36. Rc4+ Kb7 37. Kg3 Re5 38. Kf4 Re7 39. h3 Nh5+ 40. Ke3 Ng3 41. Kf4 Nh5+ 42. Kf3 Re5 43. Rd4 Kc7 44. a4 Re7 45. a5 Re5 46. Rd5 Re7 47. c4 Rf7+ 48. Ke2 Nf4+ 49. Ke3 Nxd5+ 50. cxd5 Kd6 51. axb6 axb6 52. Kd4 Rf4 53. Be2 h5 54. Bd3 g5 55. Kc4 g4 0-1

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.09"]
[Round "8"]
[White "Georgiev, Konstantin"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "A16"]
[BlackElo "1869"]
[PlyCount "116"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d5 6. cxd5 Nxd5 7. 0-0 c6 8. Qc2 Na6 9. d3 Nab4 10. Qb3 a5 11. a3 Nxc3 12. bxc3 Be6 13. Qb2 Nd5 14. Bd2 b5 15. d4 Nb6 16. Qc1 Re8 17. e4 Bb3 18. Bh6 Bh8 19. Qf4 Qb8 20. Qh4 f6 21. Rfe1 e5 22. dxe5 fxe5 23. Bg5 Qd6 24. Nd2 Bf7 25. Qg4 Qe6 26. Bh3 Qd6 27. Qf3 Bg7 28. Red1 Qc7 29. Nf1 Rf8 30. Qe3 Bb3 31. Rd2 Nc4 32. Be6+ Kh8 33. Bxc4 Bxc4 34. Rad1 Be6 35. f3 c5 36. Rd6 Bb3 37. Rd7 Qc8 38. Bh6 Bxh6 39. Qxh6 Rf7 40. Rxf7 Bxf7 41. Qg5 Qe8 42. Qf6+ Kg8 43. Ne3 Qe6 44. Rd8+ Rxd8 45. Qxd8+ Kg7 46. Nd5 a4 47. Qc7 b4 48. Qxc5 b3 49. c4 Qd7 50. Qb6 Bxd5 51. exd5 Qf5 52. g4 Qb1+ 53. Kg2 Qc2+ 54. Kg3 Qc3 55. Qc7+ Kh6 56. g5+ Kxg5 57. Qe7+ Kh6 58. Qh4+ Kg7 1/2-1/2

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.08"]
[Round "7"]
[White "Konstantinov, Aleksandar"]
[Black "Imanly, Magrura Mahammad"]
[Result "1-0"]
[ECO "B45"]
[WhiteElo "1869"]
[BlackElo "1600"]
[PlyCount "79"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 g6 6. Nxc6 bxc6 7. Qd4 Qf6 8. e5 Qd8 9. Be3 Qc7 10. Ne4 Qa5+ 11. c3 Qd5 12. Nd6+ Bxd6 13. exd6 Qxd4 14. Bxd4 f6 15. f4 Kf7 16. Be2 Nh6 17. g4 Bb7 18. Rg1 Rhf8 19. 0-0-0 Kg8 20. c4 a5 21. h4 e5 22. fxe5 fxe5 23. Be3 Nf7 24. h5 gxh5 25. gxh5+ Kh8 26. Bg4 Ba6 27. b3 Bc8 28. Rdf1 Bb7 29. Bxd7 Nxd6 30. Rxf8+ Rxf8 31. Be6 Nf7 32. Rf1 Kg7 33. Bc5 Nd6 34. h6+ Kxh6 35. Rxf8 Ne4 36. Be3+ Kh5 37. Rg8 c5 38. Kd1 Nf6 39. Bf7+ Kh4 40. Bg5+ 1-0

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.07"]
[Round "6"]
[White "Pozharsky, Viktor"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2399"]
[BlackElo "1869"]
[PlyCount "101"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. d5 d6 4. Nc3 a6 5. a4 g6 6. g3 Bg7 7. Bg2 0-0 8. 0-0 e5 9. Nd2 Nh5 10. e4 Qe8 11. Nc4 Qe7 12. Nb6 Ra7 13. a5 Bd7 14. Be3 Nf6 15. b4 Ng4 16. Qe2 Nxe3 17. Qxe3 Bb5 18. Rfb1 Bd7 19. bxc5 dxc5 20. Nca4 Bxa4 21. Rxa4 Rd8 22. Bh3 Bf8 23. Ra2 Qc7 24. c4 Bd6 25. Rab2 Rf8 26. Kh1 Kh8 27. Re2 h6 28. Qd3 Re8 29. Rf1 Qd8 30. Qc3 Qc7 31. Qb2 Kg8 32. Bg4 Rf8 33. Qb1 Kh7 34. h4 Kg8 35. Qd3 Qd8 36. Qe3 Kg7 37. Rb1 f5 38. Bh3 Nd7 39. exf5 gxf5 40. Qf3 e4 41. Qh5 Nxb6 42. Rxb6 Qf6 43. Bxf5 Qxf5 44. Qxf5 Rxf5 45. Rxd6 b5 46. axb6 Rb7 47. Rc6 Re5 48. d6 Kf8 49. Rd2 Rd7 50. Rc7 Rd8 51. b7 1-0

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.06"]
[Round "5"]
[White "Dichev, Kalojan"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1477"]
[BlackElo "1869"]
[PlyCount "70"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. d3 e6 3. f4 d5 4. e5 h5 5. g3 Ne7 6. Bg2 Nf5 7. Nf3 Nc6 8. c3 Be7 9. Na3 0-0 10. 0-0 d4 11. cxd4 Ncxd4 12. Nxd4 Qxd4+ 13. Kh1 g6 14. Nc2 Qd7 15. Be4 Rb8 16. g4 hxg4 17. Qxg4 b6 18. Qg2 Bb7 19. Bxb7 Qxb7 20. Qxb7 Rxb7 21. Ne3 Rd7 22. Nxf5 exf5 23. Rd1 Rfd8 24. Be3 Rxd3 25. Rxd3 Rxd3 26. Bf2 Rd2 27. Bg3 Rxb2 28. Rd1 Rxa2 29. Rd7 Kf8 30. Rb7 Ke8 31. Rb8+ Kd7 32. Rg8 c4 33. Rg7 c3 34. Rxf7 c2 35. Be1 c1Q 0-1

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.05"]
[Round "4"]
[White "Konstantinov, Aleksandar"]
[Black "Georgiev, Biser"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1869"]
[BlackElo "2263"]
[PlyCount "70"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 d5 7. e5 Nfd7 8. f4 Nc6 9. Nxc6 bxc6 10. 0-0 a5 11. Kh1 0-0 12. Rf3 f5 13. Rh3 g6 14. Ne2 Nc5 15. Nd4 Nxd3 16. Qxd3 Qe8 17. c3 Be7 18. Bd2 c5 19. Nf3 Ba6 20. Qe3 Qc6 21. Be1 Rab8 22. b3 a4 23. bxa4 Rb2 24. Bh4 Re2 25. Qc1 Bxh4 26. Rxh4 Rb8 27. Rb1 Rb7 28. Rxb7 Bxb7 29. Qb1 d4 30. Rh3 dxc3 31. Rg3 Rb2 32. Qc1 Qxa4 33. Qxc3 Bxf3 34. gxf3 Qd1+ 35. Rg1 Qe2 0-1

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.05"]
[Round "3"]
[White "Pozdnyakov, Nikolay"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "C72"]
[BlackElo "1869"]
[PlyCount "42"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. 0-0 Bg4 6. Re1 Qf6 7. Bxc6+ bxc6 8. d3 Be7 9. Nbd2 h5 10. h3 Be6 11. Nf1 Qg6 12. Kh2 Nh6 13. Bxh6 gxh6 14. Ne3 Rg8 15. Rg1 0-0-0 16. g4 hxg4 17. Nxg4 Qh5 18. Nd2 Bg5 19. Nf1 Bf4+ 20. Ng3 Bxg4 21. Qf1 Rg6 0-1

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.04"]
[Round "2"]
[White "Konstantinov, Aleksandar"]
[Black "Qadimbayli, Qoshgar"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1869"]
[BlackElo "1824"]
[PlyCount "80"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Bd6 5. Bd3 Ne7 6. Bg5 Nbc6 7. c3 Be6 8. Nbd2 Qd7 9. b4 h6 10. Bh4 Bf5 11. Nb3 Bxd3 12. Qxd3 b6 13. b5 Nd8 14. Bg3 Ne6 15. Bxd6 cxd6 16. g3 0-0 17. 0-0 Rac8 18. Nbd2 Rc7 19. Rfc1 Rfc8 20. a4 Rb8 21. Kg2 Nd8 22. a5 bxa5 23. Rxa5 Rcb7 24. Rb1 Ne6 25. c4 dxc4 26. Nxc4 Nc7 27. Qa3 Nxb5 28. Qa4 Nd5 29. Rbxb5 Rxb5 30. Nxd6 Nc3 31. Rxb5 Nxb5 32. Nc4 Rd8 33. Nce5 Qd5 34. Qa5 Nxd4 35. Qxa7 Nxf3 36. Nxf3 g5 37. h3 f5 38. Qa4 h5 39. g4 fxg4 40. hxg4 Rf8 0-1

[Event "Varna op 5th"]
[Site "Varna"]
[Date "2011.07.03"]
[Round "1"]
[White "Van der Togt, Antonius"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "B45"]
[BlackElo "1869"]
[PlyCount "51"]
[EventDate "2011.07.03"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 143 Extra"]
[Source "ChessBase"]
[SourceDate "2011.08.29"]
[SourceVersion "1"]
[SourceVersionDate "2011.08.29"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bb4 6. Nxc6 bxc6 7. Bd2 d5 8. a3 Ba5 9. exd5 exd5 10. Bd3 Ne7 11. 0-0 0-0 12. Re1 Bc7 13. Qh5 Ng6 14. Na4 Rb8 15. Bb4 Bd6 16. Bxd6 Qxd6 17. b4 a5 18. c3 axb4 19. cxb4 Qf4 20. h3 Ra8 21. Bc2 Ba6 22. Qf5 Qxf5 23. Bxf5 Bd3 24. Bxd3 Rxa4 25. Bc2 Ra7 26. g3 1/2-1/2

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.20"]
[Round "9"]
[White "Hristov, Hristov St"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "C54"]
[BlackElo "1885"]
[PlyCount "58"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. b4 Bb6 6. d3 d6 7. 0-0 Be6 8. Bb5 a6 9. Ba4 Nd7 10. Ng5 0-0 11. Nxe6 fxe6 12. Qg4 Qe7 13. Bb3 Rae8 14. Bg5 Qf7 15. Qg3 Ne7 16. Nd2 c6 17. Nf3 Ng6 18. Be3 Nf4 19. Rae1 Nxd3 20. Ng5 Qg6 21. Rd1 Nf4 22. Rxd6 Ne2+ 23. Kh1 Nxg3+ 24. hxg3 Bxe3 25. Nxe6 Rf7 26. Rxd7 Rxe6 27. Rd8+ Rf8 28. Rxf8+ Kxf8 29. Bxe6 Qxe6 0-1

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.19"]
[Round "8"]
[White "Konstantinov, Aleksandar"]
[Black "Qadimbayli, Qoshgar"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "1885"]
[BlackElo "1728"]
[PlyCount "67"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bf4 Bd6 5. Bg3 Ne7 6. Bd3 0-0 7. Ne2 Bf5 8. c3 c6 9. 0-0 Qc7 10. Na3 Nd7 11. Nc2 Nf6 12. Ne3 Bxd3 13. Qxd3 Ne4 14. Bxd6 Qxd6 15. f3 Nf6 16. Ng3 Rfe8 17. Rae1 h5 18. Qd2 Qf4 19. Nc4 Qxd2 20. Nxd2 h4 21. Ne2 Nf5 22. g3 hxg3 23. hxg3 Rxe2 24. Rxe2 Nxg3 25. Re7 Nxf1 26. Nxf1 Rb8 27. Ng3 Kf8 28. Rc7 g6 29. b3 Ne8 30. Rd7 Nf6 31. Rc7 Nh7 32. f4 Nf6 33. Kf2 Ne8 34. Rd7 1/2-1/2

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.18"]
[Round "7"]
[White "Aleksandrov, Georgi"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2245"]
[BlackElo "1885"]
[PlyCount "75"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 Bf5 4. Bd3 Bg6 5. Nf3 Nbd7 6. Bxg6 hxg6 7. Nbd2 e6 8. Bg5 Be7 9. Rc1 c5 10. c4 a6 11. Qb3 b5 12. cxb5 c4 13. Qc2 axb5 14. a3 Qa5 15. Bxf6 gxf6 16. Ke2 Bd6 17. h3 Ke7 18. Nb1 Rab8 19. Nc3 Nb6 20. Nd2 Na4 21. Nxa4 bxa4 22. Rb1 Rb7 23. Rhc1 Re8 24. Kd1 Qa6 25. Ke1 Qc6 26. Qc3 Bc7 27. Kd1 Qd7 28. Ke2 Qb5 29. Kf3 e5 30. g3 Qa6 31. Kg2 Kf8 32. Rd1 Ba5 33. Qc2 Qc6 34. Rdc1 Qb6 35. dxe5 fxe5 36. Nf3 Qc7 37. Qxa4 e4 38. Nd4 1/2-1/2

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.17"]
[Round "6"]
[White "Konstantinov, Aleksandar"]
[Black "Aliyev, Elnur Fakhraddin Og"]
[Result "0-1"]
[ECO "E24"]
[WhiteElo "1885"]
[BlackElo "2152"]
[PlyCount "58"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d5 6. Bg5 h6 7. Bh4 c5 8. e3 Qa5 9. Qc2 Ne4 10. Ne2 cxd4 11. exd4 Nc6 12. f3 Nd6 13. cxd5 exd5 14. Qb3 0-0 15. Kf2 Re8 16. g4 Nc4 17. Bg3 b6 18. h4 Ba6 19. Bf4 Re6 20. g5 Rae8 21. Ra2 Ne3 22. Bh3 Bc4 23. Qb2 Ng4+ 24. Bxg4 Rxe2+ 25. Qxe2 Rxe2+ 26. Rxe2 Bxe2 27. Kxe2 hxg5 28. Bd2 gxh4 29. Rxh4 Qxa3 0-1

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.16"]
[Round "5"]
[White "Stefanov, Krasen Rusev"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B25"]
[BlackElo "1885"]
[PlyCount "74"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. d3 g6 4. g3 Bg7 5. Bg2 Nf6 6. f4 0-0 7. Nf3 Nc6 8. 0-0 a6 9. a4 Rb8 10. Rb1 Bd7 11. Kh1 b5 12. axb5 axb5 13. Be3 Qc8 14. Qd2 Bh3 15. Nh4 Bxg2+ 16. Kxg2 c4 17. Ne2 b4 18. h3 Qb7 19. Kh2 Rfc8 20. g4 Ra8 21. Ra1 Nd7 22. d4 Na5 23. e5 c3 24. bxc3 bxc3 25. Qd3 Nc4 26. Rxa8 Qxa8 27. Nxc3 dxe5 28. fxe5 Nxe3 29. Qxe3 Qa5 30. Rf3 Nxe5 31. dxe5 Bxe5+ 32. Kg2 Rxc3 33. Qd2 Qc7 34. Rxc3 Qxc3 35. Qd8+ Kg7 36. Qxe7 Qg3+ 37. Kh1 Qh2# 0-1

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.15"]
[Round "4"]
[White "Konstantinov, Aleksandar"]
[Black "Musaev, Eldar Elman"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1885"]
[BlackElo "2195"]
[PlyCount "66"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nf6 5. Bd3 Nc6 6. 0-0 Bg4 7. c3 e6 8. Bf4 Bd6 9. Bg3 0-0 10. Nbd2 Rb8 11. Qc2 Rc8 12. a3 Bxg3 13. hxg3 Bxf3 14. Nxf3 g6 15. Qd2 Kg7 16. Rae1 a6 17. Qf4 b5 18. g4 Qc7 19. Ne5 Nd7 20. Qe3 Ndxe5 21. dxe5 d4 22. cxd4 Qd7 23. a4 bxa4 24. Bxa6 Rb8 25. Rd1 Rxb2 26. d5 exd5 27. Qc3 Rb3 28. Qa1 Qe6 29. Qxa4 Rb4 30. Qa2 Ra8 31. Rxd5 Rxa6 32. Qxa6 Qxd5 33. Rc1 Nxe5 0-1

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.14"]
[Round "3"]
[White "Zulfugarli, Aytaj"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B45"]
[BlackElo "1885"]
[PlyCount "74"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Bc4 d5 7. exd5 exd5 8. Bb3 Bc5 9. Qe2+ Qe7 10. Qxe7+ Kxe7 11. Ndb5 Be6 12. Bg5 Rad8 13. Rd1 d4 14. Bxf6+ gxf6 15. Ne4 b6 16. 0-0 Rhg8 17. Rfe1 Rd7 18. Kf1 a6 19. Na3 Na5 20. f4 Nxb3 21. axb3 f5 22. Ng5 h6 23. Nf3 f6 24. Nc4 Kf7 25. g3 b5 26. Na3 Bd5 27. Nh4 Be4 28. Rd2 Rgd8 29. Red1 Rd6 30. Ke2 Bb4 31. c3 dxc3 32. Rxd6 Rxd6 33. Rg1 Bd3+ 34. Kf3 Be4+ 35. Ke2 Rd2+ 36. Ke1 cxb2 37. h3 Rg2+ 0-1

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.13"]
[Round "2"]
[White "Konstantinov, Aleksandar"]
[Black "Sadzikowski, Daniel"]
[Result "0-1"]
[ECO "B85"]
[WhiteElo "1885"]
[BlackElo "2258"]
[PlyCount "96"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e6 7. Be2 Be7 8. 0-0 Nc6 9. Kh1 0-0 10. f4 Qc7 11. Be3 Re8 12. Bf3 Nxd4 13. Bxd4 e5 14. Be3 exf4 15. Bxf4 Be6 16. Nd5 Bxd5 17. exd5 Nd7 18. Ra3 Bf6 19. Bc1 Re7 20. Bg4 Rae8 21. Rg3 Nc5 22. c3 Bh4 23. Rgf3 Re1 24. Qc2 Qe7 25. Bd2 Rxf1+ 26. Rxf1 Bg5 27. Bxg5 Qxg5 28. Bf3 Qe3 29. h3 g6 30. b4 Nd3 31. Qb3 Ne5 32. b5 a5 33. Qc2 Rc8 34. Rc1 Nxf3 35. gxf3 Qxf3+ 36. Qg2 Qxg2+ 37. Kxg2 Rc4 38. Kf3 b6 39. Ke3 Rxa4 40. c4 Ra3+ 41. Kd4 Rxh3 42. Re1 Kf8 43. Re4 Rb3 44. Re2 h5 45. Ke4 a4 46. Ra2 a3 47. Kd4 h4 48. c5 bxc5+ 0-1

[Event "Varna op 4th"]
[Site "Varna"]
[Date "2010.06.12"]
[Round "1"]
[White "Qadimbayli, Qoshgar"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "1728"]
[BlackElo "1885"]
[PlyCount "106"]
[EventDate "2010.06.12"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 136 Extra"]
[Source "ChessBase"]
[SourceDate "2010.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2010.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. Bb5 a6 5. Bxc6 bxc6 6. e5 f6 7. 0-0 fxe5 8. Nxe5 Nf6 9. d3 d6 10. Ng4 Be7 11. Nxf6+ Bxf6 12. Qh5+ g6 13. Qh6 Ra7 14. Ne4 Bg7 15. Qf4 e5 16. Qf3 h6 17. Nxc5 dxc5 18. Qxc6+ Rd7 19. Qxg6+ Rf7 20. Qc6+ Bd7 21. Qxc5 Qe7 22. Be3 Qxc5 23. Bxc5 Bf8 24. Bxf8 Kxf8 25. Rae1 Rf5 26. f4 exf4 27. Re4 f3 28. Rxf3 Rxf3 29. gxf3 Rg8+ 30. Kf2 Kf7 31. c4 Bf5 32. Rd4 h5 33. Rd5 Ke6 34. d4 h4 35. Ra5 h3 36. Rxa6+ Ke7 37. b4 Rg2+ 38. Ke3 Rxh2 39. a4 Rg2 40. d5 Bg6 41. Ra8 Bh5 42. Rh8 Rg5 43. Kf4 h2 44. Kxg5 h1Q 45. Rxh5 Qxf3 46. Rh6 Qg2+ 47. Kf5 Qc2+ 48. Ke5 Qc3+ 49. Kf5 Qd3+ 50. Kg5 Qxc4 51. Rb6 Qxd5+ 52. Kg6 Qe4+ 53. Kh5 Qh1+ 0-1

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.14"]
[Round "8"]
[White "Nikolov, Rumen"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1815"]
[BlackElo "1878"]
[PlyCount "116"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 Bb4 6. Bc4 Ne7 7. 0-0 Nbc6 8. Qe2 a6 9. Rd1 b5 10. Bb3 h6 11. Be3 0-0 12. Rac1 Na5 13. Nd4 Nxb3 14. Nxb3 d5 15. exd5 Nxd5 16. Nxd5 exd5 17. a3 Be7 18. Nd4 Re8 19. Nc6 Qd6 20. Nxe7+ Rxe7 21. Qf3 Rd7 22. Rc5 Bb7 23. Bd4 Re8 24. Qg4 f6 25. f3 Rde7 26. Qh4 Rc7 27. Rdc1 Rec8 28. b4 Bc6 29. Be3 Qe5 30. Qd4 Qxd4 31. Bxd4 g5 32. R5c3 Kf7 33. Kf2 Ke6 34. Bb6 Kd7 35. Bxc7 Rxc7 36. Kg3 f5 37. h3 Kd6 38. f4 Rc8 39. Rc5 Kd7 40. fxg5 hxg5 41. h4 gxh4+ 42. Kxh4 Bb7 43. Rxc8 Bxc8 44. Rxc8 Kxc8 45. Kg5 d4 46. Kf4 Kd7 47. g4 d3 48. Ke3 fxg4 49. Kxd3 Kd6 50. Ke4 g3 51. Kf3 g2 52. Kxg2 Kd5 53. Kf3 Kc4 54. Ke3 Kb3 55. Kd3 Kxa3 56. Kc3 Ka4 57. Kd3 Kxb4 58. Kc2 Ka3 0-1

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.13"]
[Round "6"]
[White "Konstantinov, Aleksandar"]
[Black "Andreev, Andrey2"]
[Result "1/2-1/2"]
[ECO "E29"]
[WhiteElo "1878"]
[BlackElo "1889"]
[PlyCount "70"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nf3 Bb4+ 4. Nc3 c5 5. e3 Nc6 6. a3 Bxc3+ 7. bxc3 d6 8. Bd3 0-0 9. 0-0 e5 10. d5 Na5 11. e4 b6 12. Ne1 Ba6 13. Qe2 Nd7 14. Rb1 Rb8 15. f4 Qe7 16. f5 Nf6 17. Bg5 h6 18. Bh4 g5 19. Bf2 Kg7 20. h4 Rh8 21. Be3 gxh4 22. Bf2 Nh7 23. Nf3 h3 24. gxh3 Rbg8 25. Kh1 Kf8 26. Rg1 Ng5 27. Bh4 f6 28. Kh2 Qf7 29. Bxg5 hxg5 30. Rg3 g4 31. Nd2 Rxh3+ 32. Rxh3 gxh3 33. Rg1 Rxg1 34. Kxg1 Qg7+ 35. Kh2 Qh6 1/2-1/2

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.13"]
[Round "7"]
[White "Konstantinov, Aleksandar"]
[Black "Tosunov, Simeon"]
[Result "1-0"]
[ECO "C53"]
[WhiteElo "1878"]
[PlyCount "71"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Nf6 8. Bxb4 Nxb4 9. Bxf7+ Kxf7 10. Qb3+ Nbd5 11. 0-0 Be6 12. exd5 Nxd5 13. Nbd2 Re8 14. Ne4 h6 15. Rfe1 Nf4 16. Qc2 Bh3 17. gxh3 Nxh3+ 18. Kh1 d5 19. Ng3 Qf6 20. Qf5 Nxf2+ 21. Kg2 Qxf5 22. Nxf5 Rxe1 23. Rxe1 Nd3 24. Ne5+ Nxe5 25. Rxe5 Rf8 26. Rxd5 Ke6 27. Re5+ Kf6 28. Ne3 b6 29. Nd5+ Kg6 30. Nxc7 Rd8 31. d5 Kf6 32. Re6+ Kf7 33. d6 Rc8 34. Re7+ Kf8 35. d7 Rxc7 36. d8Q# 1-0

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.12"]
[Round "5"]
[White "Toshev, Vladimir"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "B32"]
[BlackElo "1878"]
[PlyCount "67"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 Nf6 6. N1c3 a6 7. Nd6+ Bxd6 8. Qxd6 Qe7 9. Qd1 0-0 10. Bc4 b5 11. Bd3 b4 12. Nd5 Nxd5 13. exd5 Nd8 14. 0-0 d6 15. a3 bxa3 16. Rxa3 f5 17. Qe2 f4 18. f3 Rf6 19. Kh1 Qf7 20. Bd2 Rh6 21. Qf2 Qh5 22. Qg1 g5 23. Rfa1 g4 24. fxg4 Qxg4 25. Bxa6 e4 26. Be2 Qxe2 27. Rxa8 Qg4 28. Bxf4 Rf6 29. Qe3 Qf5 30. Bg5 Rf8 31. Bxd8 Rxd8 32. Re1 Re8 33. Ra4 Rf8 34. Rxe4 1-0

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.11"]
[Round "4"]
[White "Karadaliev, Daniel"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "A08"]
[BlackElo "1878"]
[PlyCount "57"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. g3 c5 2. Bg2 d5 3. d3 Nf6 4. Nf3 Nc6 5. 0-0 e5 6. Bg5 h6 7. Bxf6 Qxf6 8. Nc3 Be6 9. e4 d4 10. Nd5 Qd8 11. Re1 Bd6 12. Nh4 Ne7 13. f4 f6 14. Nxe7 Bxe7 15. Ng6 Rg8 16. fxe5 fxe5 17. Nxe5 Bg5 18. Rf1 Qc7 19. Ng6 0-0-0 20. Nf4 Bd7 21. Nd5 Qe5 22. Bf3 Kb8 23. Qe1 Rde8 24. a3 Be6 25. Bg2 Bxd5 26. exd5 Be3+ 27. Kh1 Qd6 28. Qe2 Re5 29. Be4 1-0

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.10"]
[Round "2"]
[White "Konstantinov, Aleksandar"]
[Black "Georgiev, Steljan"]
[Result "0-1"]
[ECO "C53"]
[WhiteElo "1878"]
[BlackElo "2168"]
[PlyCount "136"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 d6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 Bxd2+ 8. Nbxd2 Qf6 9. 0-0 Nge7 10. Re1 0-0 11. e5 dxe5 12. dxe5 Qg6 13. Bf1 Be6 14. Rc1 Rad8 15. Qc2 Qxc2 16. Rxc2 Nd5 17. a3 Nf4 18. Ng5 Bf5 19. Nge4 Nd3 20. Bxd3 Rxd3 21. f4 Rfd8 22. Kf2 R8d4 23. Re3 Rxd2+ 24. Rxd2 Rxe4 25. Rxe4 Bxe4 26. Rd7 Kf8 27. Rxc7 Nd8 28. g4 Ne6 29. Rc8+ Ke7 30. f5 Nd8 31. Rc7+ Ke8 32. Rc4 Bd5 33. Rd4 Ba2 34. Rb4 b6 35. h4 Nc6 36. Re4 b5 37. Kg3 a5 38. Kf4 Ke7 39. g5 g6 40. Re3 Nd4 41. fxg6 hxg6 42. Ke4 Ne6 43. Rc3 Kd7 44. Rd3+ Kc6 45. Rc3+ Bc4 46. Rc1 Nc5+ 47. Ke3 Kd5 48. Rh1 Kxe5 49. h5 gxh5 50. Rxh5 Kd6 51. g6 fxg6 52. Rg5 Bd3 53. Rg1 a4 54. Kd4 Bf5 55. Kc3 Kc6 56. Kd4 Nd3 57. Rg2 Kd6 58. Re2 Nf4 59. Re8 Ne6+ 60. Ke3 Kd5 61. Rc8 g5 62. Rc3 Nc5 63. Rc1 g4 64. Rf1 Be4 65. Rf8 g3 66. Rg8 g2 67. Rg5+ Kc4 68. Kd2 Kb3 0-1

[Event "BUL-ch U20"]
[Site "Sofia"]
[Date "2009.03.10"]
[Round "3"]
[White "Konstantinov, Aleksandar"]
[Black "Krustev, Goran"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "1878"]
[PlyCount "46"]
[EventDate "2009.03.09"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "CBM 129 Extra"]
[Source "ChessBase"]
[SourceDate "2009.05.05"]
[SourceVersion "2"]
[SourceVersionDate "2009.05.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 g6 3. Nc3 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Be3 Nf6 7. Be2 0-0 8. Qd2 Qa5 9. Nb3 Qc7 10. Bh6 d6 11. Bxg7 Kxg7 12. 0-0-0 a5 13. h4 a4 14. Nd4 Qb6 15. Ncb5 Nxd4 16. Nxd4 e5 17. Nf5+ Bxf5 18. exf5 Ne4 19. f6+ Kxf6 20. Qd5 Nxf2 21. Rhf1 Kg7 22. Qxd6 Qe3+ 23. Qd2 Nxd1 0-1

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "4"]
[White "Knezovic, Ivo"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1902"]
[BlackElo "1878"]
[PlyCount "98"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 Bf5 4. Nf3 e6 5. c4 c6 6. Nc3 Bd6 7. Bxd6 Qxd6 8. Qb3 Qc7 9. Rc1 Qb6 10. c5 Qxb3 11. axb3 Nbd7 12. b4 0-0 13. Nh4 Bg4 14. h3 Bh5 15. g4 Bg6 16. Nxg6 hxg6 17. g5 Ne8 18. f4 b6 19. b5 Rc8 20. bxc6 Rxc6 21. Bb5 Rc7 22. Bxd7 Rxd7 23. c6 Re7 24. Nb5 a6 25. c7 Nxc7 26. Rxc7 Rxc7 27. Nxc7 Rc8 28. Kd2 Rxc7 29. Ra1 a5 30. b4 Ra7 31. Kc2 a4 32. b5 Rc7+ 33. Kd3 Rc4 34. Ra3 Kf8 35. Rc3 Rxc3+ 36. Kxc3 Ke7 37. Kb4 Kd6 38. Kxa4 f6 39. gxf6 gxf6 40. Kb4 e5 41. fxe5+ fxe5 42. Kc3 Ke6 43. Kd3 Kf5 44. dxe5 Kxe5 45. h4 Kd6 46. Kd4 Ke6 47. e4 dxe4 48. Kxe4 Kd6 49. Kf4 Ke6 1/2-1/2

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "3"]
[White "Konstantinov, Aleksandar"]
[Black "Glisovic, Zan"]
[Result "1/2-1/2"]
[ECO "B03"]
[WhiteElo "1878"]
[PlyCount "36"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. b3 0-0 9. Rc1 N6d7 10. Nf3 Nc6 11. Be2 b6 12. 0-0 Bb7 13. Qd2 Nf6 14. Bh6 e6 15. Bxg7 Kxg7 16. d5 Ne7 17. dxe6 fxe6 18. Rfd1 d5 1/2-1/2

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "5"]
[White "Konstantinov, Aleksandar"]
[Black "Kocar, Borut"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "1878"]
[BlackElo "1892"]
[PlyCount "84"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. Ngf3 dxe4 5. Ng1 Qxd4 6. Ne2 Qb6 7. Nb3 e5 8. Be3 Qb4+ 9. Bd2 Qd6 10. Nc3 Bg4 11. Be2 Be6 12. 0-0 Nc6 13. Nb5 Qd7 14. Be3 a6 15. Qxd7+ Kxd7 16. Rad1+ Kc8 17. Nc3 Bb4 18. Na4 Rd8 19. a3 Bxb3 20. cxb3 Be7 21. Bg5 Nd4 22. Nc3 Nxe2+ 23. Nxe2 h6 24. Bxf6 gxf6 25. Ng3 Rd3 26. Rxd3 exd3 27. Rd1 Kd7 28. Rxd3+ Ke6 29. Nh5 f5 30. Ng3 Rd8 31. Rc3 f4 32. Nf1 c6 33. Rh3 Bf8 34. g3 Rd3 35. b4 Bg7 36. Kg2 f3+ 37. Kg1 Kf5 38. Ne3+ Ke6 39. Rh4 f5 40. Rc4 e4 41. Rc1 Bxb2 42. Rc5 Bxa3 0-1

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "7"]
[White "Konstantinov, Aleksandar"]
[Black "Lekic, Lazar"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1878"]
[BlackElo "1614"]
[PlyCount "48"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 a6 3. f4 b5 4. d3 Bb7 5. Nf3 e6 6. Be2 b4 7. Nb1 Nc6 8. 0-0 Nf6 9. Ne5 d6 10. Nxc6 Bxc6 11. Nd2 g6 12. f5 Bg7 13. fxe6 fxe6 14. Nf3 0-0 15. e5 Nd5 16. exd6 Qxd6 17. Nd2 Bd4+ 18. Kh1 Ne3 19. Rxf8+ Rxf8 20. Ne4 Bxe4 21. Bxe3 Bxg2+ 22. Kxg2 Bxe3 23. Bf3 g5 24. Qe2 Bd4 0-1

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "1"]
[White "Konstantinov, Aleksandar"]
[Black "Muratovic, Efim"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1878"]
[BlackElo "2325"]
[PlyCount "64"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4 Nc6 5. Be3 Nh6 6. h3 e5 7. fxe5 dxe5 8. d5 Nd4 9. Qd2 Qh4+ 10. Bf2 Qe7 11. Bxd4 exd4 12. Nce2 Qxe4 13. 0-0-0 Nf5 14. Kb1 0-0 15. Nf3 Rd8 16. Nexd4 Nxd4 17. Nxd4 Rxd5 18. Qe2 Rxd4 19. Rxd4 Qxd4 20. Qe8+ Bf8 21. Bd3 Qd7 22. Re1 Qxe8 23. Rxe8 h5 24. Bb5 h4 25. Bd7 Bxd7 26. Rxa8 Bc6 27. Rxa7 Bxg2 28. Ra4 Be7 29. Rc4 c6 30. Rc3 g5 31. Rb3 g4 32. hxg4 h3 0-1

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "6"]
[White "Lekic, Dragan"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "B20"]
[BlackElo "1878"]
[PlyCount "49"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Bc4 a6 4. a3 b5 5. Ba2 Bb7 6. d3 d6 7. f4 Be7 8. Nf3 Nf6 9. 0-0 0-0 10. Ne2 Qb6 11. Kh1 d5 12. e5 Nfd7 13. g4 d4 14. Ng3 Rd8 15. Kg1 Qc7 16. g5 g6 17. h4 Bf8 18. Qe2 Bxf3 19. Qxf3 Qc6 20. Qg4 Bg7 21. Ne4 Qc7 22. Rf2 Nc6 23. Bd2 Ne7 24. h5 Nf5 25. Rh2 1/2-1/2

[Event "Dubrovnik op"]
[Site "Dubrovnik"]
[Date "2008.04.24"]
[Round "2"]
[White "Portada, Maroje"]
[Black "Konstantinov, Aleksandar"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2104"]
[BlackElo "1878"]
[PlyCount "91"]
[EventDate "2008.04.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "CRO"]
[SourceTitle "CBM 124 Extra"]
[Source "ChessBase"]
[SourceDate "2008.07.03"]
[SourceVersion "1"]
[SourceVersionDate "2008.07.03"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d6 6. Nc3 Qxb6 7. e4 Nbd7 8. Nf3 g6 9. g3 Bg7 10. Bg2 0-0 11. 0-0 Qd8 12. h3 Nb6 13. Re1 Nfd7 14. Na4 Nc4 15. Qc2 Nce5 16. Nd2 Nb6 17. f4 Ned7 18. Nxb6 Qxb6 19. Nc4 Qc7 20. Bd2 Bd4+ 21. Kh2 a5 22. e5 Bb7 23. exd6 exd6 24. Re7 Bf6 25. Bxa5 Rxa5 26. Rxd7 Qxd7 27. Nxa5 Qb5 28. Nc4 Rd8 29. Re1 Ba6 30. b3 Qb4 31. Re4 Bxc4 32. Rxc4 Qb7 33. h4 Bd4 34. b4 Qd7 35. a4 Ra8 36. b5 Ra5 37. Qb3 Qa7 38. Bf3 Bf2 39. Qc2 Be1 40. f5 Bb4 41. Bd1 Qb7 42. Qe4 Kf8 43. f6 Qd7 44. Qe3 Qf5 45. Qe7+ Kg8 46. Qe8# 1-0

[Event "BUL-chT U18"]
[Site "Razgrad"]
[Date "2006.11.11"]
[Round "7.1"]
[White "Ivanov, Mitko"]
[Black "Konstantinov, Aleksandar"]
[Result "0-1"]
[ECO "A48"]
[BlackElo "1861"]
[PlyCount "86"]
[EventDate "2006.11.08"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 c5 3. c3 g6 4. Bf4 Bg7 5. h3 cxd4 6. cxd4 0-0 7. e3 d5 8. Be2 Nc6 9. 0-0 Ne4 10. Nbd2 Bf5 11. Qb3 Na5 12. Qa4 Rc8 13. Rfc1 Qb6 14. b4 Nc6 15. a3 f6 16. Qb3 Qd8 17. Nxe4 Bxe4 18. Nd2 Bf5 19. Bf3 Be6 20. Rc3 Qd7 21. Rac1 a6 22. Qc2 Bf7 23. Be2 e5 24. dxe5 fxe5 25. Bh2 Be6 26. Bxa6 Nxb4 27. axb4 bxa6 28. Rxc8 Rxc8 29. Qxc8+ Qxc8 30. Rxc8+ Bxc8 31. Nf3 e4 32. Nd4 Bf8 33. Nc6 Bb7 34. Na5 Bc8 35. Nc6 Bd7 36. Nb8 Bb5 37. Nxa6 Bxa6 38. f3 Bxb4 39. fxe4 dxe4 40. Kf2 Kf7 41. h4 Ke6 42. g4 Bd6 43. Bxd6 Kxd6 0-1

[Event "BUL-chT U18"]
[Site "Razgrad"]
[Date "2006.11.11"]
[Round "6.3"]
[White "Konstantinov, Aleksandar"]
[Black "Kirov, Dimitar"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1861"]
[BlackElo "2123"]
[PlyCount "96"]
[EventDate "2006.11.08"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bd3 a6 8. Na3 b5 9. Nd5 Nxd5 10. exd5 Nb8 11. 0-0 Be7 12. Qh5 g6 13. Qh6 Bf8 14. Qg5 Qxg5 15. Bxg5 Bg7 16. c3 f5 17. f3 Nd7 18. Nc2 Nb6 19. Rad1 Na4 20. Rb1 Kf7 21. Be3 Bd7 22. Nb4 a5 23. Nc2 Rhc8 24. Rfd1 Rab8 25. a3 h5 26. Be2 f4 27. Bf2 g5 28. Bd3 Bf6 29. Ne1 g4 30. Bc2 h4 31. fxg4 Bxg4 32. Nf3 h3 33. Be4 b4 34. cxb4 axb4 35. Be1 Nc5 36. gxh3 Bxh3 37. Nd2 Rg8+ 38. Kf2 Nxe4+ 39. Nxe4 Bh4+ 40. Ke2 Bg4+ 41. Kd3 Bxd1 42. Rxd1 Bxe1 43. Rxe1 bxa3 44. bxa3 Ke7 45. Re2 Rb3+ 46. Kc4 Rxa3 47. Rb2 Rc8+ 48. Kb4 Re3 0-1

[Event "BUL-chT U18"]
[Site "Razgrad"]
[Date "2006.11.10"]
[Round "4.3"]
[White "Ivanov, Tihomir"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "B76"]
[WhiteElo "1825"]
[BlackElo "1861"]
[PlyCount "78"]
[EventDate "2006.11.08"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 g6 7. Be3 Bg7 8. Qd2 0-0 9. Bh6 Nc6 10. Bxg7 Kxg7 11. 0-0-0 Qc7 12. g4 Nxd4 13. Qxd4 Qc5 14. Qd2 Be6 15. h4 h5 16. gxh5 Nxh5 17. Bd3 b5 18. Kb1 b4 19. Ne2 a5 20. Rdg1 Rh8 21. Rg5 Qf2 22. f4 Kf8 23. f5 gxf5 24. exf5 Bd5 25. Rhg1 Nf6 26. Rg7 Rxh4 27. Qg5 Ke8 28. b3 Kd7 29. Nc1 Rh2 30. Rf1 Qc5 31. Qf4 Rhh8 32. Qd2 a4 33. Ne2 Rhc8 34. Rc1 Kd8 35. Nf4 axb3 36. cxb3 Qxc1+ 37. Qxc1 Rxc1+ 38. Kxc1 Rxa2 39. Nxd5 Nxd5 1/2-1/2

[Event "BUL-chT U18"]
[Site "Razgrad"]
[Date "2006.11.09"]
[Round "3.1"]
[White "Konstantinov, Aleksandar"]
[Black "Vasilev, Plamen"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1861"]
[BlackElo "2049"]
[PlyCount "101"]
[EventDate "2006.11.08"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. Ne2 Nf6 6. 0-0 g6 7. c3 Bg7 8. Nd2 Bf5 9. Bxf5 gxf5 10. Ng3 e6 11. Re1 0-0 12. Nh5 Nxh5 13. Qxh5 Qf6 14. Re3 Qg6 15. Qe2 Qg4 16. Qe1 f4 17. h3 Qf5 18. Rf3 e5 19. Nb3 Bh6 20. g4 Qe4 21. Qd1 Qg6 22. h4 e4 23. Rh3 Nd8 24. Nc5 Kh8 25. Nd7 Rg8 26. Ne5 Qe6 27. Kh2 f6 28. g5 fxe5 29. gxh6 Nf7 30. Qh5 Nxh6 31. Qxe5+ Qxe5 32. dxe5 Ng4+ 33. Kg2 Nxe5+ 34. Kf1 Nf3 35. Rh1 Rg4 36. Ke2 d4 37. cxd4 Nxd4+ 38. Kd1 Rd8 39. Rb1 Rg2 40. Ke1 Nc2+ 41. Kf1 Rg4 42. b3 Rd1+ 43. Ke2 Rd6 44. Bb2+ Kg8 45. Rhg1 f3+ 46. Kf1 Rxg1+ 47. Kxg1 Rd2 48. Bc3 Rd3 49. Be5 e3 50. fxe3 Nxe3 51. Bg3 0-1

[Event "BUL-chT U18"]
[Site "Razgrad"]
[Date "2006.11.09"]
[Round "2.2"]
[White "Stefanova, Milena"]
[Black "Konstantinov, Aleksandar"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2046"]
[BlackElo "1861"]
[PlyCount "74"]
[EventDate "2006.11.08"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. b3 Nf6 4. Bb5+ Nc6 5. e5 dxe5 6. 0-0 Bg4 7. d3 Rc8 8. Bxc6+ Rxc6 9. Nbd2 Nd7 10. Bb2 g6 11. Qe1 f6 12. h3 Bxf3 13. Nxf3 Bh6 14. Nh2 0-0 15. Ng4 Bg7 16. Qe2 Rf7 17. Rae1 Nf8 18. Qd2 Ne6 19. Nh6+ Bxh6 20. Qxh6 Nd4 21. Bxd4 cxd4 22. Qd2 Qc8 23. Re2 e6 24. f4 exf4 25. Qxf4 Qd8 26. Re4 Rd6 27. h4 Qd7 28. Qg3 e5 29. h5 Rg7 30. Qf3 Qe7 31. hxg6 hxg6 32. Qg3 Re6 33. Rfe1 Qc5 34. Qf2 Rd7 35. Rg4 Kg7 36. Qf5 Kf7 37. Rxg6 Ke7 1/2-1/2

[Event "BUL-chT U18"]
[Site "Razgrad"]
[Date "2006.11.08"]
[Round "1.2"]
[White "Konstantinov, Aleksandar"]
[Black "Kolev, Vasil"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "1861"]
[BlackElo "1993"]
[PlyCount "69"]
[EventDate "2006.11.08"]
[EventType "team-tourn"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 115 Extra"]
[Source "ChessBase"]
[SourceDate "2007.01.10"]
[SourceVersion "1"]
[SourceVersionDate "2007.01.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. Be3 Be7 9. Qd2 h5 10. f3 Nbd7 11. 0-0-0 b5 12. Bd3 b4 13. Ne2 a5 14. Kb1 0-0 15. h3 Nb6 16. g4 Nc4 17. Bxc4 Bxc4 18. Ng3 a4 19. Nc1 d5 20. g5 Nh7 21. exd5 Bxg5 22. Nxh5 Bxe3 23. Qxe3 Qg5 24. Qxg5 Nxg5 25. Rhg1 Nxf3 26. Rxg7+ Kh8 27. Rg3 Nd4 28. Nd3 b3 29. cxb3 axb3 30. a3 Bxd5 31. Nf6 Be6 32. Nxe5 Bf5+ 33. Nd3 Ne2 34. Rg5 Ra5 35. Ka1 1-0

