[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.26"]
[Round "19"]
[White "Pantaleev, Dimitar Dimitrov"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "22"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. e5 dxc3 6. exf6 Qxf6 7. bxc3 h6 8. Bd3 d5 9. 0-0 Be6 10. Rb1 Bd6 11. Rxb7 0-0 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.24"]
[Round "18"]
[White "Kostov Petkov, Petko"]
[Black "Minev, Nikolay Nikolaev"]
[Result "0-1"]
[ECO "C47"]
[PlyCount "82"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 Bb4 5. Nxe5 Nxe4 6. Qf3 Nf6 7. Be3 Qe7 8. Nxc6 dxc6 9. Qg3 0-0 10. Bd3 Ne4 11. Bxe4 Qxe4 12. 0-0 Qxc2 13. Rfc1 Qg6 14. Qxc7 Bd6 15. Qa5 h6 16. Ne2 Be6 17. Qd2 Bd5 18. Ng3 Rae8 19. Re1 Re6 20. Bf4 Be7 21. Rxe6 fxe6 22. Be5 c5 23. b3 h5 24. f4 h4 25. Nf1 cxd4 26. Bxd4 Rxf4 27. Ne3 Rxd4 28. Qxd4 Bf6 29. Qd1 Bxa1 30. Qxa1 Bxg2 31. Qc1 Bc6+ 32. Kf2 Qe4 33. Qg1 Qf3+ 34. Ke1 Qh1 35. Qxh1 Bxh1 36. Kf2 Kf7 37. Ng4 Kg6 38. Ke3 Kf5 39. Nf2 Bg2 40. b4 g5 41. a4 g4 0-1

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.23"]
[Round "17"]
[White "Milev, Angel"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C75"]
[PlyCount "161"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. 0-0 Nge7 7. d4 Ng6 8. Ng5 Qf6 9. Bb3 Nd8 10. Nf3 h6 11. Nbd2 Ne6 12. Nc4 Ng5 13. Ne3 Nxf3+ 14. Qxf3 Qxf3 15. gxf3 Be6 16. Nd5 0-0-0 17. Rd1 Be7 18. f4 exf4 19. Nxe7+ Nxe7 20. Bxf4 g5 21. Bd2 Ng6 22. f3 Rde8 23. Bc2 Rhf8 24. Re1 Nh4 25. Kf2 f5 26. exf5 Bxf5 27. Rxe8+ Rxe8 28. Bxf5+ Nxf5 29. Re1 Rxe1 30. Bxe1 Kd7 31. h3 Ke6 32. f4 d5 33. fxg5 hxg5 34. Kf3 Kf6 35. Bg3 c6 36. Be5+ Kg6 37. Bg3 Kh5 38. Bf2 Ne7 39. Be1 Nf5 40. Bg3 Kg6 41. Bc7 Nh4+ 42. Kg4 Nf5 43. Kf3 Nh6 44. Bd6 Kf5 45. Bf8 Ng8 46. Bg7 Ne7 47. Bf8 Ng6 48. Bd6 Nh8 49. Be7 Ng6 50. Bd6 Nh4+ 51. Kg3 Kg6 52. Kg4 Nf5 53. Bf8 Ne3+ 54. Kf3 Nc4 55. b3 Nd2+ 56. Kg4 Ne4 57. c4 dxc4 58. bxc4 b5 59. cxb5 axb5 60. Be7 Nf2+ 61. Kg3 Nd1 62. Kg4 Ne3+ 63. Kf3 Nd5 64. Bf8 Kf5 65. Bd6 Nf6 66. Bb4 Ne8 67. Be7 Nc7 68. Bd6 Nd5 69. a3 Nf6 70. Be7 Nd7 71. Bd6 Nb6 72. Be7 Nc4 73. Bf8 Nd2+ 74. Ke3 Ne4 75. Be7 Nc3 76. Kf3 Nd5 77. Bd6 Nf6 78. Be5 g4+ 79. hxg4+ Nxg4 80. Bg7 Nh2+ 81. Kg2 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.22"]
[Round "16"]
[White "Kostov Petkov, Petko"]
[Black "Orev, Petar"]
[Result "1/2-1/2"]
[ECO "E94"]
[PlyCount "54"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 0-0 6. Be3 e5 7. Nge2 exd4 8. Nxd4 Nc6 9. Be2 Re8 10. Qd2 Bd7 11. 0-0 Nh5 12. Nxc6 Bxc6 13. Rae1 Be5 14. Bg5 Bf6 15. Be3 Be5 16. g3 Qd7 17. Nd5 a6 18. f4 Bg7 19. Bxh5 gxh5 20. Bd4 Bxd5 21. Bxg7 Bxe4 22. f5 Kxg7 23. Qg5+ Kf8 24. Qf6 Kg8 25. Qg5+ Kh8 26. Qf6+ Kg8 27. Qg5+ Kh8 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.20"]
[Round "15"]
[White "Kostov Petkov, Petko"]
[Black "Peev, Peicho Chonev"]
[Result "1-0"]
[ECO "C28"]
[PlyCount "97"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 Na5 5. Bb3 Nxb3 6. axb3 d5 7. exd5 Nxd5 8. Qh5 Nb4 9. Qxe5+ Be7 10. Qe2 0-0 11. Be3 Re8 12. Qd2 Nd5 13. Nxd5 Qxd5 14. Ne2 Qxg2 15. Rg1 Qc6 16. Qc3 Qxc3+ 17. bxc3 Bd6 18. h4 f6 19. Kd2 a6 20. c4 b6 21. Nf4 Kf7 22. c3 Bf5 23. b4 c6 24. Nh5 Bg6 25. Nxg7 Kxg7 26. h5 b5 27. Rg2 Kf7 28. hxg6+ hxg6 29. Rgg1 Bc7 30. Rh1 Kg7 31. Kc2 g5 32. Ra2 bxc4 33. dxc4 a5 34. Rd1 Red8 35. Rxd8 Bxd8 36. b5 Rb8 37. Rb2 f5 38. Bd4+ Bf6 39. bxc6 Rc8 40. Rb7+ Kg6 41. c7 Bxd4 42. cxd4 Kf6 43. Kd3 g4 44. Ra7 a4 45. c5 Ke6 46. Rxa4 Rxc7 47. Ra6+ Kf7 48. Kc4 f4 49. Rh6 1-0

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.19"]
[Round "14"]
[White "Tsvetkov, Alexandar K"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "44"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. g3 g6 2. Bg2 Bg7 3. e4 e5 4. Ne2 Nc6 5. c3 d6 6. d4 Nge7 7. Be3 0-0 8. d5 Nb8 9. Qd2 f5 10. f3 fxe4 11. fxe4 Bg4 12. Na3 Qd7 13. 0-0-0 Bh3 14. Ng1 Bxg2 15. Qxg2 Na6 16. Ne2 Nc5 17. g4 Qa4 18. Bxc5 dxc5 19. h4 h6 20. g5 h5 21. c4 Nc8 22. Nc3 Qd7 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.18"]
[Round "13"]
[White "Kostov Petkov, Petko"]
[Black "Tringov, Georgi Petrov"]
[Result "0-1"]
[ECO "B06"]
[PlyCount "158"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 g6 2. Nc3 Bg7 3. Bc4 Nc6 4. d3 Na5 5. Nge2 Nxc4 6. dxc4 d6 7. 0-0 Nf6 8. f3 0-0 9. Be3 c6 10. Qe1 Re8 11. Rd1 Qa5 12. b3 b5 13. cxb5 cxb5 14. a4 bxa4 15. Nxa4 Qc7 16. Qd2 Bd7 17. Nac3 Rec8 18. Bd4 Bc6 19. Rf2 Qb7 20. Nc1 a5 21. N1e2 Qb4 22. h3 Nd7 23. Bxg7 Kxg7 24. Nd4 Nb6 25. Nxc6 Rxc6 26. Nd5 Nxd5 27. Qxd5 Rac8 28. Ra1 Rxc2 29. Rxc2 Rxc2 30. Qxa5 Qxb3 31. Kh1 Qe3 32. Rg1 Rc1 33. Rxc1 Qxc1+ 34. Kh2 Qc5 35. Qd8 e6 36. Qe7 Qd4 37. Qd8 Qe5+ 38. Kh1 d5 39. Qa5 Qd4 40. exd5 exd5 41. Qe1 Qf4 42. Kg1 h5 43. Kf2 Qh4+ 44. g3 Qd4+ 45. Kg2 Qb2+ 46. Kf1 Qb5+ 47. Kg2 d4 48. Qe4 Qc5 49. h4 Qd6 50. Qd3 Kf6 51. Kf1 Qc5 52. Ke2 Ke6 53. Qb3+ Qd5 54. Qb6+ Kf5 55. Qb1+ Kf6 56. Qd3 Ke5 57. Qc2 Qe6 58. Kf2 Kd6 59. Qd2 Qe5 60. Qd3 Qc5 61. Ke2 Qb4 62. Qa6+ Ke5 63. Qd3 Qb2+ 64. Kf1 f5 65. Qc4 Qc3 66. Qb5+ Kd6 67. Qb6+ Kd5 68. Qb5+ Qc5 69. Qd7+ Kc4 70. Qe6+ Qd5 71. Qe2+ Kc5 72. Qe7+ Qd6 73. Qa7+ Qb6 74. Qa2 Qb4 75. Kf2 d3 76. Qa7+ Kc4 77. Qa6+ Kc3 78. Qc6+ Qc4 79. Qa8 d2 0-1

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.16"]
[Round "12"]
[White "Bobotsov, Milko Georgiev"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "E94"]
[PlyCount "54"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 d6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 g6 6. e4 Bg7 7. Be3 Nf6 8. Be2 0-0 9. f3 Re8 10. Qd2 Be6 11. 0-0 Ne5 12. Nxe6 fxe6 13. Rad1 Qe7 14. h3 a6 15. f4 Nf7 16. Bf3 Rad8 17. Qf2 c6 18. g4 Nd7 19. h4 b5 20. cxb5 axb5 21. g5 d5 22. Rfe1 d4 23. Bxd4 e5 24. Be3 exf4 25. Bxf4 Nfe5 26. Bg2 Rf8 27. Qg3 Nc5 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.15"]
[Round "11"]
[White "Kostov Petkov, Petko"]
[Black "Kadrev, Zdravko Minchev"]
[Result "0-1"]
[ECO "D88"]
[PlyCount "64"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[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 cxd4 9. cxd4 Nc6 10. Be3 0-0 11. 0-0 Bg4 12. f3 Na5 13. Bd5 Bc8 14. Qd2 e6 15. Bb3 b6 16. Rac1 Ba6 17. Rfd1 Rc8 18. Rxc8 Qxc8 19. Rc1 Qd7 20. Nf4 Rc8 21. Rxc8+ Qxc8 22. d5 Nc4 23. Bxc4 Qxc4 24. h4 Bc3 25. Qd1 e5 26. Nh3 Qe2 27. Qc1 Bb2 28. Qc7 Qxe3+ 29. Kh2 Bf1 30. Ng5 Qf4+ 31. Kg1 Bb5 32. d6 Qc1+ 0-1

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.14"]
[Round "10"]
[White "Mlechev, Hristo"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "E91"]
[PlyCount "99"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Be2 0-0 6. Nf3 Bg4 7. 0-0 Nc6 8. Be3 Nd7 9. Qd2 Bxf3 10. Bxf3 e5 11. dxe5 dxe5 12. g3 Nb6 13. b3 Qxd2 14. Bxd2 Nd4 15. Bg2 Rfd8 16. Rad1 c6 17. Bg5 f6 18. Be3 Nd7 19. Bxd4 exd4 20. Rxd4 f5 21. Rd3 Nc5 22. Rxd8+ Rxd8 23. Rd1 Re8 24. Na4 Nxe4 25. Bxe4 Rxe4 26. Rd8+ Kf7 27. Nc5 Re7 28. Kf1 Bf6 29. Rb8 b6 30. Nd3 Rc7 31. a4 g5 32. c5 bxc5 33. Nxc5 Bd4 34. Na6 Rd7 35. Rc8 Bb6 36. Ke2 Re7+ 37. Kf1 Rd7 38. Ke2 Re7+ 39. Kf1 Rd7 40. b4 Rd1+ 41. Ke2 Rb1 42. f3 Rb2+ 43. Ke1 Rxh2 44. Nc5 Ra2 45. Rxc6 Bxc5 46. Rxc5 Rxa4 47. Rxf5+ Kg6 48. Rb5 h5 49. Kf2 Ra2+ 50. Kg1 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.12"]
[Round "9"]
[White "Kostov Petkov, Petko"]
[Black "Dimitrov Iliev, Ilia"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "53"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. g3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Ndb5 Nge7 8. Nd6+ Kf8 9. Bg2 h5 10. h4 Qb6 11. 0-0 Nd4 12. Nc4 Qa6 13. Nd2 g5 14. hxg5 h4 15. Nb3 Nxb3 16. cxb3 hxg3 17. Be3 gxf2+ 18. Rxf2 Be5 19. Bf1 Qd6 20. Qxd6 Bxd6 21. Rd1 Be5 22. Be2 Rh3 23. Rdf1 Rg3+ 24. Kh1 Rh3+ 25. Kg1 Rg3+ 26. Kh1 Rh3+ 27. Kg1 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.11"]
[Round "8"]
[White "Zahariev, Georgi"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "A25"]
[PlyCount "60"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 d6 5. d3 Nge7 6. e3 0-0 7. Nge2 Bd7 8. b3 Qc8 9. h3 a6 10. Bb2 Rb8 11. Qd2 b5 12. Kf1 Nf5 13. Kg1 Nce7 14. Kh2 Ba7 15. Nd5 Nxd5 16. Bxd5 Ne7 17. Bg2 bxc4 18. bxc4 Bc6 19. Bxc6 Nxc6 20. Bc3 Qb7 21. Qc2 Ne7 22. Rhb1 Qc6 23. Rb3 Rb7 24. Rxb7 Qxb7 25. Rb1 Qc6 26. Rb2 Rb8 27. Rxb8+ Bxb8 28. e4 Ba7 29. Be1 f5 30. exf5 Nxf5 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.10"]
[Round "7"]
[White "Kostov Petkov, Petko"]
[Black "Popov, Luben"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "81"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. Na3 Nf6 6. d4 cxd4 7. Nb5 Na6 8. Qxd4 Bc5 9. Qxd5 Nxd5 10. Be2 0-0 11. 0-0 Nac7 12. Nxc7 Nxc7 13. Rd1 f6 14. Bc4 Kh8 15. Be3 Be7 16. Nd4 e5 17. Nb3 b6 18. a4 Be6 19. Bxe6 Nxe6 20. Rd7 Bc5 21. Nxc5 Nxc5 22. Bxc5 bxc5 23. Rad1 Kg8 24. R1d5 c4 25. g3 Rf7 26. Rxf7 Kxf7 27. Rc5 Rb8 28. Rxc4 Rxb2 29. Rc7+ Kg6 30. Rxa7 Ra2 31. Kf1 Ra3 32. Rc7 Rxa4 33. Ke2 f5 34. Ke3 Kf6 35. h4 Ra1 36. Rc6+ Kf7 37. Rc7+ Kf6 38. Rc6+ Kf7 39. Ke2 Ra2+ 40. Ke3 Ra1 41. Kf3 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.08"]
[Round "6"]
[White "Neikirkh, Oleg"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E62"]
[PlyCount "81"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. 0-0 Nc6 7. Nc3 e5 8. d5 Ne7 9. c5 e4 10. cxd6 Qxd6 11. Ng5 Nexd5 12. Ncxe4 Qe7 13. Nxf6+ Nxf6 14. Re1 h6 15. Nh3 Rd8 16. Qc2 Nd5 17. a3 c6 18. Bd2 Be6 19. Rad1 Rd7 20. e4 Nc7 21. Bb4 Qe8 22. Rxd7 Bxd7 23. Bc3 Ne6 24. Bxg7 Nxg7 25. Qd2 Kh7 26. Nf4 Be6 27. Qb4 Qd7 28. Bf3 Qc7 29. Rd1 c5 30. Qb5 a6 31. Qd3 Re8 32. Qc3 b6 33. h4 h5 34. Qf6 Bb3 35. Rd6 Ne6 36. e5 Nxf4 37. Qxf4 a5 38. Bxh5 Be6 39. Bf3 Rd8 40. h5 Rxd6 41. hxg6+ 1-0

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.07"]
[Round "5"]
[White "Kostov Petkov, Petko"]
[Black "Bogdanov, Emil"]
[Result "1/2-1/2"]
[ECO "C13"]
[PlyCount "104"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 e6 4. e4 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 Bd7 8. Bd3 Bc6 9. c3 Nd7 10. Qe2 Bxe4 11. Bxe4 c6 12. 0-0-0 Qa5 13. Kb1 0-0-0 14. Nd2 Qc7 15. g3 Nb6 16. f4 Rd7 17. Nb3 g6 18. Rde1 Kb8 19. Nc5 Re7 20. Qc2 h5 21. h4 Nd7 22. b4 Nxc5 23. bxc5 Qa5 24. Qb3 Kc7 25. a3 b6 26. Qb4 Qxb4+ 27. axb4 a5 28. cxb6+ Kxb6 29. bxa5+ Kxa5 30. Kc2 Kb6 31. Ra1 Rb7 32. Rhb1+ Kc7 33. Ra6 Rxb1 34. Rxc6+ Kd7 35. Kxb1 Rb8+ 36. Kc2 Rc8 37. Rxc8 Kxc8 38. Bc6 Kd8 39. Kd3 Be7 40. Ke4 Ba3 41. c4 Bb4 42. d5 Ke7 43. dxe6 fxe6 44. Kf3 Bc5 45. g4 hxg4+ 46. Kxg4 Kf6 47. Be8 Be3 48. Kf3 Bc5 49. Ke4 Bf2 50. h5 gxh5 51. Bxh5 Bc5 52. Bg4 Bd6 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.06"]
[Round "4"]
[White "Popov, Vladilen"]
[Black "Kostov Petkov, Petko"]
[Result "0-1"]
[ECO "E02"]
[PlyCount "114"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 dxc4 5. Qc2 Be7 6. 0-0 0-0 7. Qxc4 Nbd7 8. d4 a6 9. Qc2 Rb8 10. Rd1 Nb6 11. e4 Bd7 12. Nc3 Rc8 13. Bf4 Qe8 14. Ne5 c5 15. d5 exd5 16. Nxd7 Qxd7 17. e5 Nh5 18. Nxd5 Nxd5 19. Bxd5 Qc7 20. Be3 Qxe5 21. Bxb7 Rb8 22. Rd5 Qf6 23. Rd7 Qe6 24. Rad1 Nf6 25. Rc7 Rfd8 26. Re1 Bd6 27. Bd2 Qxa2 28. Rc6 Rxb7 29. Qd3 Qd5 30. Qxd5 Nxd5 31. Rxd6 Rbb8 32. Rxa6 Rxb2 33. Ba5 Rdb8 34. Re5 Nf6 35. Rxc5 h6 36. Rc4 Re8 37. Ra7 Ne4 38. Rac7 Nxf2 39. Rc8 Nh3+ 40. Kh1 Rxc8 41. Rxc8+ Kh7 42. Rc7 Kg6 43. Rd7 Nf2+ 44. Kg1 Ne4 45. Kh1 Ra2 46. Bb4 h5 47. Bf8 Nd2 48. Rd3 Ne4 49. Ra3 Rc2 50. Rb3 Ra2 51. Ra3 Rb2 52. Ra6+ f6 53. Ra7 Ng5 54. Rxg7+ Kf5 55. Ba3 Ra2 56. Bd6 Kg4 57. h4 Kh3 0-1

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.04"]
[Round "3"]
[White "Kostov Petkov, Petko"]
[Black "Drumev, Avram"]
[Result "1/2-1/2"]
[ECO "C50"]
[PlyCount "93"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d4 Be7 5. h3 Nf6 6. Nc3 0-0 7. Bb3 a6 8. dxe5 dxe5 9. Qe2 Nd4 10. Nxd4 exd4 11. Nd5 Nxd5 12. Bxd5 c6 13. Bb3 b5 14. 0-0 Be6 15. f4 c5 16. Bxe6 fxe6 17. a4 Qb6 18. axb5 axb5 19. Rxa8 Rxa8 20. Qg4 c4 21. Kh2 b4 22. e5 c3 23. bxc3 bxc3 24. f5 exf5 25. Qxf5 Rf8 26. Qd3 Rxf1 27. Qxf1 Qe6 28. Qf4 Qd5 29. Qf5 h6 30. Bf4 Bf8 31. Qd3 Be7 32. Bg3 Bg5 33. h4 Bd8 34. Qe2 Be7 35. Qd3 Bd8 36. Kh1 Bb6 37. Kh2 Bc7 38. Qa6 Kh7 39. Qd3+ Kg8 40. Qe2 Kf8 41. Qa6 Kg8 42. Qc8+ Qd8 43. Qe6+ Kh8 44. Kh3 d3 45. cxd3 Qxd3 46. Qc8+ Qd8 47. Qf5 1/2-1/2

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.03"]
[Round "2"]
[White "Radulov, Ivan"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "A36"]
[PlyCount "133"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. e4 c5 6. Nge2 Nc6 7. 0-0 0-0 8. d3 Bd7 9. h3 Ne8 10. Be3 Nc7 11. d4 cxd4 12. Nxd4 Ne6 13. Nde2 Rc8 14. Rc1 f5 15. b3 Kh8 16. Qd2 Nc5 17. Kh2 Qe8 18. exf5 Rxf5 19. Nd4 Rh5 20. Nxc6 bxc6 21. Ne2 Qf7 22. Nf4 Rf5 23. Rce1 Rf8 24. Kg1 g5 25. Ne2 Ne6 26. Nd4 Nxd4 27. Bxd4 c5 28. Be3 Qf6 29. Qa5 Re5 30. Qxa7 Bf5 31. Rd1 h5 32. Qb7 g4 33. h4 Qe6 34. Rfe1 Bc2 35. Rd5 Bh6 36. Rxe5 Qxe5 37. Qd5 Qxd5 38. Bxd5 Bg7 39. Re2 Bd1 40. Rd2 Bf3 41. Bxf3 gxf3 42. Bg5 Bd4 43. Bxe7 Re8 44. Bxd6 Re1+ 45. Kh2 Re2 46. Bf4 Bxf2 47. Be5+ Kh7 48. Bc3 Kg6 49. a4 Re3 50. Rxf2 Rxc3 51. Ra2 Rc1 52. a5 Re1 53. Rf2 Re3 54. a6 Rxb3 55. Ra2 Rb8 56. a7 Ra8 57. Ra5 Kf5 58. Rxc5+ Ke4 59. Ra5 Ke3 60. Kg1 Ke2 61. Re5+ Kd3 62. Kf2 Rxa7 63. Kxf3 Rf7+ 64. Kg2 Rh7 65. c5 Kd4 66. Rg5 Rh6 67. c6 1-0

[Event "BUL-ch17"]
[Site "Sofia"]
[Date "1963.03.02"]
[Round "1"]
[White "Kostov Petkov, Petko"]
[Black "Chipev, Teodor Antonov"]
[Result "1/2-1/2"]
[ECO "E19"]
[PlyCount "65"]
[EventDate "1963.03.02"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. 0-0 Be7 6. c4 0-0 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 Be4 10. b3 d5 11. Bb2 c6 12. Ne5 Bxg2 13. Kxg2 Bd6 14. Rfd1 Qe7 15. Nd3 Qb7 16. Rac1 Rd8 17. f3 Nd7 18. cxd5 cxd5 19. Qc6 Qxc6 20. Rxc6 Nb8 21. Rc2 Na6 22. Rdc1 Nb4 23. Nxb4 Bxb4 24. Rc7 Kf8 25. Rb7 Rdb8 26. Rbc7 Ke8 27. e4 Bd6 28. R7c6 Rd8 29. Kf2 Rab8 30. Ke3 Rb7 31. Rc8 Kd7 32. Rxd8+ Kxd8 33. Kd3 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.03.01"]
[Round "19"]
[White "Kostov Petkov, Petko"]
[Black "Ajanski, Jordan S"]
[Result "1/2-1/2"]
[ECO "B91"]
[PlyCount "52"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 b5 8. Bg2 Bb7 9. a3 Nbd7 10. 0-0 Be7 11. Bg5 0-0 12. Qd2 Rc8 13. Rad1 Qc7 14. h3 h6 15. Be3 Nb6 16. Bxb6 Qxb6 17. Nd5 Nxd5 18. exd5 f5 19. Kh2 Bf6 20. c3 Rce8 21. Qe3 Qxe3 22. fxe3 Bc8 23. e4 g6 24. Nc1 Bd7 25. Nd3 a5 26. Rde1 Kg7 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.27"]
[Round "18"]
[White "Radulov, Ivan"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E61"]
[PlyCount "81"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 d6 5. e3 e5 6. d4 0-0 7. Nge2 Nc6 8. 0-0 Bd7 9. b3 Qc8 10. Re1 Bh3 11. Bh1 Qf5 12. Bb2 Ng4 13. Ne4 Bh6 14. Qd2 Rad8 15. f4 Qc8 16. Qc3 f6 17. Rad1 Bg7 18. dxe5 dxe5 19. Nc5 Nh6 20. b4 b6 21. Bxc6 bxc5 22. bxc5 Kh8 23. Bd5 c6 24. Bh1 Qc7 25. Qc2 Qa5 26. Qc3 Qxc5 27. Ba3 Qb6 28. Bxf8 Rxf8 29. Rd6 Nf5 30. c5 Qa6 31. Rd2 Bh6 32. Be4 Qc8 33. Qb3 Rd8 34. Red1 Rxd2 35. Rxd2 Ne7 36. Qf7 Qf8 37. Qxf8+ Bxf8 38. Rd6 Kg7 39. Kf2 Nc8 40. Rxc6 Be7 41. Rc7 1-0

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.25"]
[Round "16"]
[White "Dimitrov Iliev, Ilia"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C84"]
[PlyCount "56"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[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 Nf6 4. d3 d6 5. Nbd2 Be7 6. Nf1 a6 7. Ba4 b5 8. Bb3 Na5 9. Ng3 Nxb3 10. axb3 c5 11. 0-0 0-0 12. Bd2 Be6 13. Ng5 Bg4 14. f3 Bd7 15. f4 exf4 16. Bxf4 Bg4 17. Qe1 Nh5 18. Nxh5 Bxh5 19. Qg3 Qd7 20. Nf3 Rfe8 21. Rae1 Bxf3 22. Rxf3 d5 23. exd5 Qxd5 24. Rfe3 Qd7 25. Be5 Bf8 26. Re4 Re6 27. Qh3 Qc6 28. Bg3 Rxe4 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.23"]
[Round "15"]
[White "Kostov Petkov, Petko"]
[Black "Spassov, Liuben"]
[Result "0-1"]
[ECO "B96"]
[PlyCount "128"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5 dxe5 9. fxe5 Qc7 10. Nf3 Nfd7 11. Ne4 Bb7 12. Nd6+ Bxd6 13. exd6 Qc5 14. Qd4 f6 15. Qxc5 Nxc5 16. Be3 Nbd7 17. c4 b4 18. Be2 e5 19. 0-0 0-0 20. Nd2 f5 21. a3 b3 22. g3 Bc6 23. Rae1 a5 24. Bxc5 Nxc5 25. Bd1 e4 26. Nxb3 Nxb3 27. Bxb3 Rab8 28. Ba2 Rxb2 29. Rf2 Rxf2 30. Kxf2 Kf7 31. c5+ Kf6 32. Rb1 Ke5 33. Rb6 Bd5 34. Bxd5 Kxd5 35. Rb5 a4 36. Ra5 g5 37. d7 Kc6 38. Ra7 f4 39. gxf4 gxf4 40. Rxa4 e3+ 41. Kf3 Kxd7 42. Re4 Kc6 43. Re5 Kb5 44. a4+ Kc6 45. h3 h5 46. h4 Rf7 47. Re6+ Kd5 48. Rb6 Kxc5 49. a5 Re7 50. Rb2 Kd4 51. a6 Ra7 52. Rb6 Kd3 53. Rd6+ Kc2 54. Rd4 Rxa6 55. Ke2 Rf6 56. Rc4+ Kb2 57. Rb4+ Kc3 58. Rb1 Rd6 59. Kf3 Re6 60. Ra1 e2 61. Kf2 e1Q+ 62. Rxe1 Rxe1 63. Kxe1 Kd3 64. Kf2 Ke4 0-1

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.22"]
[Round "14"]
[White "Pantaleev, Dimitar Dimitrov"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "E81"]
[PlyCount "46"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Bg5 c5 7. d5 Qa5 8. Qd2 Re8 9. Nge2 a6 10. g4 Nbd7 11. Ng3 Ne5 12. Be2 b5 13. Bh6 Bh8 14. Nf5 Rb8 15. cxb5 axb5 16. Be3 Nc4 17. Bxc4 bxc4 18. 0-0 Bxf5 19. gxf5 Nd7 20. fxg6 hxg6 21. f4 Rxb2 22. Qxb2 Bxc3 23. Qb7 Nf6 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.21"]
[Round "13"]
[White "Kostov Petkov, Petko"]
[Black "Milev, Angel"]
[Result "1/2-1/2"]
[ECO "B15"]
[PlyCount "31"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[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. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Bd6 7. Qe2+ Be7 8. Be3 0-0 9. 0-0-0 b5 10. Bb3 a5 11. a3 a4 12. Ba2 b4 13. d5 b3 14. cxb3 cxd5 15. b4 Bf5 16. Nf3 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.19"]
[Round "12"]
[White "Piskov, Kamen Penev"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "A52"]
[PlyCount "71"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5 5. f4 Nec6 6. a3 Bc5 7. b4 Bxg1 8. Rxg1 Qh4+ 9. g3 Qxh2 10. Rg2 Qh1 11. Qg4 0-0 12. Bb2 f6 13. Qe2 d6 14. Nd2 Qh3 15. Qf2 a5 16. b5 Ne7 17. Rh2 Qe6 18. 0-0-0 Nd7 19. c5 d5 20. exd5 Nxd5 21. Bc4 c6 22. Nf3 Qe7 23. Bxd5+ cxd5 24. Rxd5 b6 25. Rdh5 Nxc5 26. Qc2 Qe3+ 27. Kb1 Qxf3 28. Qxh7+ Kf7 29. f5 Qd1+ 30. Ka2 Qb3+ 31. Ka1 Qd1+ 32. Ka2 Qb3+ 33. Kb1 Qd3+ 34. Ka2 Qb3+ 35. Kb1 Qd1+ 36. Ka2 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.18"]
[Round "11"]
[White "Kostov Petkov, Petko"]
[Black "Dimitrov Krastev, Krastjo"]
[Result "1/2-1/2"]
[ECO "E81"]
[PlyCount "84"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 0-0 6. Be3 c6 7. Nge2 a6 8. Nc1 Nbd7 9. Nb3 b5 10. c5 Bb7 11. Be2 Qc7 12. 0-0 dxc5 13. dxc5 Rfd8 14. Qc2 a5 15. a4 b4 16. Nd1 e5 17. Nf2 Nf8 18. Rad1 Ne6 19. g3 h6 20. Rxd8+ Rxd8 21. Rd1 Bf8 22. Bc4 Bc8 23. Rxd8 Nxd8 24. Qd3 Ne6 25. Qd2 Kh7 26. Kg2 Nd8 27. Nd3 Ne6 28. Qf2 Ng5 29. h4 Bh3+ 30. Kh2 Be6 31. Bxe6 Nxe6 32. Qc2 Nd7 33. Qc4 Qa7 34. Kg2 g5 35. hxg5 hxg5 36. Qc1 Qa6 37. Qc2 Be7 38. Kf2 Kg7 39. Kg1 Kf6 40. Nf2 Kg7 41. Qd3 Qxd3 42. Nxd3 Bd8 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.17"]
[Round "10"]
[White "Popov, Luben"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "D32"]
[PlyCount "44"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 c5 5. Nf3 Nc6 6. Bf4 Nf6 7. e3 c4 8. Be2 a6 9. Ne5 Be7 10. 0-0 0-0 11. e4 Nxe5 12. dxe5 Nxe4 13. Nxd5 Be6 14. Bxc4 Rc8 15. Nxe7+ Qxe7 16. Bd3 Nc5 17. Bc2 Bc4 18. Re1 Ne6 19. Be3 Rfd8 20. Qg4 Bd5 21. Rec1 g6 22. b3 Qa3 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.15"]
[Round "9"]
[White "Kostov Petkov, Petko"]
[Black "Filchev, Rusko"]
[Result "1/2-1/2"]
[ECO "B35"]
[PlyCount "82"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[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. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. 0-0 0-0 9. Nd5 Qd8 10. Nxf6+ Bxf6 11. f4 d6 12. Bd5 Qc7 13. c3 Nxd4 14. Bxd4 Bxd4+ 15. Qxd4 Qc5 16. Qxc5 dxc5 17. h3 e6 18. Bb3 Bd7 19. Rad1 Rfd8 20. Rfe1 Bc6 21. Bc2 Kf8 22. Kf2 Ke7 23. Ke3 Rxd1 24. Rxd1 Rd8 25. Rxd8 Kxd8 26. g4 Ke7 27. h4 h6 28. e5 Bd5 29. a3 b6 30. b4 cxb4 31. cxb4 Bc6 32. Bd1 Bd7 33. Be2 Ba4 34. Kd4 Bb3 35. Bf3 Ba2 36. a4 Bb3 37. a5 Ba2 38. Be2 Bd5 39. axb6 axb6 40. f5 gxf5 41. gxf5 f6 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.14"]
[Round "8"]
[White "Kadrev, Zdravko Minchev"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "D34"]
[PlyCount "38"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. h3 Ne4 10. Be3 Bf6 11. Rc1 Re8 12. g4 cxd4 13. Nxd4 Nxd4 14. Bxd4 Bxd4 15. Qxd4 Nxc3 16. Rxc3 Rxe2 17. Bxd5 Be6 18. Qc4 Re5 19. Bxe6 Rxe6 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.13"]
[Round "7"]
[White "Kostov Petkov, Petko"]
[Black "Chipev, Teodor Antonov"]
[Result "0-1"]
[ECO "C29"]
[PlyCount "134"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 6. d4 Bb4 7. Bd2 c5 8. Bb5+ Nc6 9. 0-0 0-0 10. Bxc6 bxc6 11. Qe1 Bxc3 12. bxc3 Ba6 13. Rf2 f6 14. Bf4 fxe5 15. Bxe5 Qe7 16. Qe3 Rae8 17. Rd2 Nxd2 18. Qxd2 Bc8 19. Re1 cxd4 20. cxd4 Qf7 21. Bd6 Rxe1+ 22. Qxe1 Re8 23. Ne5 Ba6 24. h3 Bb5 25. Qg3 Qf5 26. Kh2 Re6 27. Bc5 a6 28. a3 h6 29. c3 Be2 30. a4 g5 31. h4 Kg7 32. a5 Qf4 33. hxg5 Qxg3+ 34. Kxg3 hxg5 35. Kf2 Bb5 36. Kg3 Kf6 37. Kf3 Re8 38. Nd7+ Kg6 39. Ne5+ Kf5 40. Nd7 Ke6 41. Ne5 Rh8 42. Kg4 Rh2 43. Kxg5 Rxg2+ 44. Kf4 Rf2+ 45. Ke3 Ra2 46. Bb4 c5 47. Bxc5 Rxa5 48. Kd2 Ra2+ 49. Kc1 Kf5 50. Kb1 Rg2 51. Ba3 Ke4 52. Bb2 Bc4 53. Ba3 Ba2+ 54. Kc1 Ke3 55. Bf8 Bc4 56. Bh6+ Ke4 57. Bd2 Bd3 58. Nd7 Kf3 59. Ne5+ Ke2 60. Bh6 Rg1+ 61. Kb2 Rb1+ 62. Ka2 Rb5 63. Bc1 Bc4+ 64. Ka3 Kd1 65. Bh6 Kc2 66. Bf8 Kxc3 67. Bc5 Ra5# 0-1

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.11"]
[Round "6"]
[White "Prahov, Valentin Asenov"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C56"]
[PlyCount "112"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[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. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bd7 8. Bxc6 bxc6 9. 0-0 Be7 10. f3 Nc5 11. f4 Ne6 12. f5 Nxd4 13. Qxd4 Qb8 14. e6 fxe6 15. Qxg7 Rf8 16. Bh6 Qb4 17. Qxh7 Rxf5 18. Qg8+ Bf8 19. Rxf5 exf5 20. Qxf8+ Qxf8 21. Bxf8 Kxf8 22. Nc3 Rb8 23. b3 Ke7 24. Kf2 Kd6 25. h4 Rh8 26. Rh1 c5 27. h5 Rh6 28. Ne2 Ke5 29. g3 Be8 30. Nf4 Bf7 31. Kf3 Kd4 32. g4 fxg4+ 33. Kxg4 Bxh5+ 34. Nxh5 Kc3 35. Rh2 a5 36. Rf2 a4 37. Nf6 c6 38. Kf5 axb3 39. cxb3 Rh4 40. Ng4 Rh3 41. Ne5 Re3 42. Nxc6 d4 43. Ne5 d3 44. Kf4 Rh3 45. Nc4 Rh8 46. Rf3 Rh2 47. Ne5 Rxa2 48. Nxd3 Ra3 49. Ne5+ Kb4 50. Nc6+ Kb5 51. Ne7 Ra7 52. Nd5 Rf7+ 53. Ke4 Rxf3 54. Kxf3 c4 55. b4 c3 56. Ke3 Kc4 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.10"]
[Round "5"]
[White "Neikirkh, Oleg"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E97"]
[PlyCount "223"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bg7 5. e4 0-0 6. Be2 e5 7. 0-0 Nc6 8. Be3 Ng4 9. Bg5 f6 10. Bc1 exd4 11. Nxd4 Nxd4 12. Qxd4 f5 13. Qd5+ Kh8 14. Bxg4 fxg4 15. Bg5 c6 16. Qd2 Qc7 17. Bh6 Bxh6 18. Qxh6 Be6 19. b3 Qg7 20. Qd2 Qe5 21. Rad1 Rad8 22. Rfe1 Rf7 23. Re3 Kg7 24. Rd3 Rdf8 25. Rf1 Rd7 26. Qe3 a6 27. Rfd1 Rdf7 28. R1d2 Rf6 29. Qg3 Qc5 30. Qe3 Qe5 31. Qd4 Qa5 32. Re3 Kg8 33. Qxd6 Bxc4 34. Qd7 Qb6 35. Nd1 Be6 36. Qd3 R6f7 37. Qd6 Re8 38. Qg3 Rd8 39. Red3 Rfd7 40. Rxd7 Rxd7 41. Qb8+ Kg7 42. Rxd7+ Bxd7 43. Qd6 Qd8 44. Ne3 Qe8 45. Nc4 Be6 46. Qe5+ Kg8 47. Nd6 Qd7 48. f4 gxf3 49. gxf3 Bh3 50. Kf2 b5 51. Qc5 Qc7 52. e5 Bf5 53. b4 Qe7 54. Qd4 Qe6 55. Kg3 Bb1 56. a3 Qe7 57. h4 Bf5 58. Qc5 h5 59. Ne4 Qc7 60. Qd6 Qa7 61. Qd8+ Kg7 62. Qf6+ Kg8 63. Nc5 a5 64. e6 axb4 65. axb4 Qb8+ 66. f4 Qf8 67. Qe5 Qe7 68. Qb8+ Kg7 69. Qe5+ Kg8 70. Qe3 Kg7 71. Qd4+ Kg8 72. Qd7 Qf6 73. Qc8+ Kg7 74. Qc7+ Kg8 75. Qb8+ Kh7 76. Qe5 Qe7 77. Nd7 Qxb4 78. Nf6+ Kh6 79. Ng4+ Kh7 80. Nf6+ Kh6 81. Ng4+ Kh7 82. e7 Qb3+ 83. Ne3 Bd7 84. e8Q Bxe8 85. Qxe8 Qc3 86. Qe7+ Kh6 87. Qg5+ Kh7 88. Qe7+ Kh6 89. f5 gxf5 90. Kf4 Qd4+ 91. Kxf5 Qd3+ 92. Kf4 Qd4+ 93. Kf3 Qc3 94. Qg5+ Kh7 95. Qxh5+ Kg7 96. Qg5+ Kh7 97. Qe7+ Kg6 98. Qe6+ Kg7 99. Kf4 Qd4+ 100. Kg5 Kh8 101. Qf6+ Qxf6+ 102. Kxf6 c5 103. Kg6 c4 104. Nc2 b4 105. Nxb4 c3 106. Nc2 Kg8 107. Ne3 Kh8 108. Kf5 Kg7 109. Ke4 Kg6 110. Kd3 c2 111. Kxc2 Kh5 112. Ng2 1-0

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.09"]
[Round "4"]
[White "Kostov Petkov, Petko"]
[Black "Drumev, Avram"]
[Result "1/2-1/2"]
[ECO "B01"]
[PlyCount "117"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 g6 5. d4 Bg7 6. Nf3 Nh6 7. h3 Nf5 8. Bf4 0-0 9. Be5 Bxe5 10. dxe5 Qxd1+ 11. Rxd1 e6 12. g4 Ne7 13. Ng5 Nbc6 14. f4 a6 15. 0-0 b5 16. Be2 Nb4 17. Bf3 Rb8 18. Rd2 c6 19. Nge4 Nbd5 20. Nf6+ Kg7 21. Bxd5 cxd5 22. h4 Ng8 23. Nxg8 Kxg8 24. Ne2 Bd7 25. Nd4 Rbc8 26. c3 Rc4 27. a3 a5 28. Kf2 b4 29. axb4 axb4 30. cxb4 Rb8 31. Ke3 Rcxb4 32. Rff2 Ba4 33. Rh2 Rc8 34. h5 Rc1 35. hxg6 hxg6 36. Rhg2 Bb5 37. Nxb5 Rxb5 38. f5 Rb4 39. fxg6 Re4+ 40. Kf3 Rxe5 41. gxf7+ Kxf7 42. Kf4 Kf6 43. Rde2 Rc4+ 44. Kg3 Rxe2 45. Rxe2 e5 46. Rf2+ Ke6 47. g5 e4 48. Kf4 Rc8 49. g6 Rf8+ 50. Ke3 d4+ 51. Ke2 Rb8 52. Kf1 d3 53. g7 Rg8 54. Rg2 Kd5 55. Kf2 d2 56. Ke2 e3 57. Rg1 Kd4 58. Rg4+ Kc5 59. Rg1 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.07"]
[Round "3"]
[White "Milev, Zdravko"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E85"]
[PlyCount "59"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Be3 e5 7. Nge2 Nbd7 8. d5 Nb6 9. b3 c6 10. g4 cxd5 11. cxd5 Bd7 12. Ng3 Rc8 13. Rc1 Ne8 14. Bd3 Kh8 15. Qd2 f5 16. exf5 Rxc3 17. Rxc3 Nxd5 18. Bg5 Qb6 19. Rc1 Nf4 20. Bxf4 exf4 21. Ne2 gxf5 22. Bxf5 Bc6 23. Qxf4 Nc7 24. Qxd6 Re8 25. Be4 Nb5 26. Qc5 Qa5+ 27. Kf2 Bxe4 28. fxe4 Rf8+ 29. Kg2 Qxa2 30. Qxb5 1-0

[Event "BUL-ch15+"]
[Site "Sofia"]
[Date "1961.02.06"]
[Round "2"]
[White "Kostov Petkov, Petko"]
[Black "Tringov, Georgi Petrov"]
[Result "1/2-1/2"]
[ECO "B96"]
[PlyCount "73"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "8"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 9. a3 Nbd7 10. Bf2 Nc5 11. Nb3 Qc6 12. Nxc5 dxc5 13. Be2 b5 14. Bf3 Bb7 15. 0-0 b4 16. e5 Qc7 17. axb4 cxb4 18. Nb5 axb5 19. Rxa8+ Bxa8 20. Bxa8 Nd7 21. Qd3 Bc5 22. Qxb5 Bxf2+ 23. Rxf2 0-0 24. Bf3 Rb8 25. Qc6 Qa7 26. g3 Nc5 27. b3 Rd8 28. Kg2 g6 29. c4 h5 30. Qb5 Rd4 31. Re2 Kg7 32. Qc6 Rd1 33. Rf2 Rd4 34. Qa8 Qd7 35. Qc6 Qa7 36. Qa8 Qd7 37. Qc6 1/2-1/2

[Event "BUL-ch15"]
[Site "Sofia"]
[Date "1961.02.05"]
[Round "1"]
[White "Minev, Nikolay Nikolaev"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "D36"]
[PlyCount "81"]
[EventDate "1961.02.05"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. cxd5 exd5 7. Bd3 Be7 8. Qc2 h6 9. Bh4 0-0 10. Nge2 Re8 11. 0-0 Nf8 12. Rae1 Ne6 13. Bg3 Bd7 14. h3 Ng5 15. Be5 Nxh3+ 16. gxh3 Bxh3 17. Bxf6 Bxf6 18. Nf4 Bxf1 19. Rxf1 Qd6 20. Nce2 Bg5 21. Bf5 Re7 22. Bh3 g6 23. Nd3 Rae8 24. Bg2 Bf6 25. b4 h5 26. b5 Kg7 27. bxc6 bxc6 28. Rc1 Rc7 29. Nc5 Rce7 30. Nd3 Rc7 31. Qc5 Be7 32. Qxd6 Bxd6 33. Nc5 f5 34. Nf4 Bxf4 35. exf4 Ree7 36. Na6 Rb7 37. Rxc6 Rb1+ 38. Kh2 Rb2 39. Nc5 Rxf2 40. Kg3 Rxa2 41. Ne6+ 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.26"]
[Round "19"]
[White "Kostov Petkov, Petko"]
[Black "Daskalov, Georgi Ilchev"]
[Result "1/2-1/2"]
[ECO "A00"]
[PlyCount "24"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 4. Bc4 f5 5. Nc3 Qh4 6. Qe2 Bd6 7. Nf3 Qh5 8. d3 Nc6 9. Nd5 Nge7 10. Nxe7 Nxe7 11. Bd2 Bd7 12. 0-0-0 0-0-0 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.24"]
[Round "18"]
[White "Radev Iordanov, Nikolay"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "E97"]
[PlyCount "26"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. b4 Nh5 10. Nd2 Nf4 11. Nb3 Nxe2+ 12. Qxe2 f5 13. f3 f4 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.23"]
[Round "17"]
[White "Kostov Petkov, Petko"]
[Black "Neikirkh, Oleg"]
[Result "1/2-1/2"]
[ECO "B85"]
[PlyCount "39"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Be3 e6 7. Be2 a6 8. 0-0 Bd7 9. f4 Qc7 10. Kh1 b5 11. a3 Be7 12. Bf3 Rc8 13. Nb3 0-0 14. Qe2 Rfd8 15. Rad1 Be8 16. Qf2 Rb8 17. g4 Nd7 18. g5 Nb6 19. Rg1 Nc4 20. Bc1 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.22"]
[Round "16"]
[White "Andreev, Alexi"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "E62"]
[PlyCount "78"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 0-0 5. 0-0 d6 6. c4 Nc6 7. Nc3 e5 8. dxe5 dxe5 9. Bg5 Be6 10. Qa4 Qe8 11. Bxf6 Bxf6 12. Nd5 Bxd5 13. cxd5 Nd4 14. Qc4 Qd7 15. e3 Nxf3+ 16. Bxf3 Be7 17. Rac1 Bd6 18. e4 f5 19. Bg2 f4 20. Qe2 Rf7 21. Bf3 Raf8 22. Rc3 fxg3 23. hxg3 Kg7 24. Bg4 Qa4 25. Be6 Rf6 26. a3 Qd4 27. Kg2 h5 28. f3 Qa4 29. Rfc1 c5 30. dxc6 Rxe6 31. c7 Rc8 32. Qd3 Qd7 33. Qd5 Re7 34. Rd1 Rxc7 35. Rxc7 Qxc7 36. Qxd6 Qxd6 37. Rxd6 Kf7 38. Kf2 Re6 39. Rd8 Rb6 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.20"]
[Round "15"]
[White "Kolarov, Atanas Stefanov"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E98"]
[PlyCount "82"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. e4 d6 5. d4 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Nd3 b6 11. b4 f5 12. f3 a5 13. bxa5 Rxa5 14. Bd2 Ra8 15. a4 Ba6 16. Nb5 Nc5 17. Nxc5 dxc5 18. a5 Nc8 19. axb6 cxb6 20. Bd3 Nd6 21. Nxd6 Qxd6 22. Qb3 fxe4 23. fxe4 Rfb8 24. Rfb1 Bf6 25. Be2 Qe7 26. Qg3 Bh4 27. Qe3 Qd6 28. Bc3 Bc8 29. Qd2 Rxa1 30. Rxa1 Bd8 31. Qh6 Bf6 32. Bd2 Qe7 33. h3 Bg7 34. Qe3 Qd6 35. Qg3 Bd7 36. Ra7 b5 37. cxb5 c4 38. Bxc4 Qc5+ 39. Be3 Qxc4 40. Rxd7 Qxe4 41. b6 Bf8 1-0

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.19"]
[Round "14"]
[White "Kostov Petkov, Petko"]
[Black "Chaprazov, Ivan Vasilev"]
[Result "0-1"]
[ECO "C02"]
[PlyCount "142"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 cxd4 7. cxd4 Nge7 8. Na3 Nf5 9. Nc2 Be7 10. 0-0 0-0 11. b4 Bd7 12. Rb1 a5 13. Bd3 g6 14. Bxf5 exf5 15. Qd2 axb4 16. Qh6 f6 17. Nh4 Rf7 18. Re1 Rxa2 19. e6 Bxe6 20. Rxe6 Rxc2 21. Nxg6 Rxc1+ 22. Rxc1 hxg6 23. Qxg6+ Kf8 24. Qh6+ Ke8 25. Qh8+ Kd7 26. Rce1 Qxd4 27. Qg8 Nd8 28. h3 b3 29. R6e2 Qf4 30. Rd1 d4 31. g3 Qc7 32. Rxd4+ Kc8 33. Qg6 Bc5 34. Qxf5+ Kb8 35. Rg4 Rd7 36. Qb1 Qb6 37. Rb2 Bd4 38. Rxb3 Bxf2+ 39. Kg2 Qc5 40. Qe4 Bd4 41. Rg8 Qc7 42. h4 Be5 43. Rb4 Rd2+ 44. Kh3 Qf7 45. Qc4 Qd7+ 46. Rg4 f5 47. Rf4 Bxf4 48. Qxf4+ Qd6 49. Qxd6+ Rxd6 50. h5 Nf7 51. Rb5 Rf6 52. Kg2 Kc7 53. Kf3 Nd6 54. Rb1 Rh6 55. Rh1 Kd7 56. Kf4 Ke6 57. Re1+ Kf7 58. g4 Re6 59. Rd1 Re4+ 60. Kg5 Rxg4+ 61. Kh6 Ke7 62. Kh7 Ne4 63. Rb1 Nd6 64. h6 b5 65. Ra1 Ke6 66. Ra6 Ke5 67. Ra7 f4 68. Kh8 f3 69. h7 Rh4 70. Kg8 f2 71. Ra1 Ne4 0-1

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.18"]
[Round "13"]
[White "Dimitrov Iliev, Ilia"]
[Black "Kostov Petkov, Petko"]
[Result "0-1"]
[ECO "A24"]
[PlyCount "145"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. e4 d6 6. Nge2 e5 7. 0-0 Be6 8. d3 c6 9. Qa4 Nbd7 10. Qa3 Nb6 11. f4 Qd7 12. b4 Nh5 13. Rb1 d5 14. c5 d4 15. Nd1 Bg4 16. Rb2 Nc8 17. Nf2 Be6 18. Bf3 exf4 19. Bxf4 Nf6 20. Qa4 a6 21. Qd1 Ne8 22. Qd2 f6 23. Bh6 g5 24. Bxg7 Nxg7 25. a4 Ne7 26. Rfb1 Ng6 27. Bg2 Rfd8 28. b5 axb5 29. axb5 Ne5 30. Nc1 Ra3 31. bxc6 Qxc6 32. Qb4 Ra4 33. Qxb7 Qxc5 34. Nb3 Qa7 35. Qxa7 Rxa7 36. Nc5 Rc7 37. Nxe6 Nxe6 38. Bh3 Ng7 39. Rb8 Rxb8 40. Rxb8+ Kf7 41. Rb1 Kg6 42. Rf1 Rc6 43. Bg4 h5 44. Be2 Rc2 45. Re1 Ne6 46. Kf1 Nc5 47. Rb1 g4 48. h3 Nf3 49. Bxf3 gxf3 50. Rd1 Nd7 51. Ke1 Re2+ 52. Kf1 Ne5 53. Kg1 Kg5 54. h4+ Kg6 55. Rf1 Rd2 56. Rd1 Rxd1+ 57. Nxd1 Nxd3 58. Nf2 Nc5 59. Kf1 f5 60. e5 Kf7 61. Nh3 Ke6 62. Kf2 Kxe5 63. Kxf3 Ne6 64. Nf2 Kd5 65. Nd3 Kc4 66. Ke2 Kc3 67. Ne5 Nc5 68. Nf3 Ne4 69. Ne1 Nxg3+ 70. Kf3 d3 71. Ng2 d2 72. Ne3 Kd3 73. Nd1 0-1

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.15"]
[Round "12"]
[White "Kostov Petkov, Petko"]
[Black "Pantaleev, Dimitar Dimitrov"]
[Result "1/2-1/2"]
[ECO "C47"]
[PlyCount "35"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Bc5 3. Nf3 d6 4. d4 exd4 5. Nxd4 Nc6 6. Be3 Bxd4 7. Bxd4 Nxd4 8. Qxd4 Nf6 9. Bc4 0-0 10. 0-0-0 Qe7 11. Rhe1 Qe5 12. Qxe5 dxe5 13. Nb5 Ne8 14. Rd8 a6 15. Rxe8 axb5 16. Rxf8+ Kxf8 17. Bxb5 Rxa2 18. Kb1 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.14"]
[Round "11"]
[White "Khadshipetrov, Alexander Mateev"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C67"]
[PlyCount "25"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qe2 Nd4 9. Nxd4 Qxd4 10. Rd1 Bg4 11. Rxd4 Bxe2 12. Nc3 Bh5 13. Bf4 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.13"]
[Round "10"]
[White "Kostov Petkov, Petko"]
[Black "Karastoichev, Emil Stefanov"]
[Result "1-0"]
[ECO "B22"]
[PlyCount "39"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qd7 9. Be3 Bd6 10. 0-0 Nf6 11. h3 Bh5 12. Re1 0-0 13. Bg5 Bxf3 14. Bxf3 Nxd4 15. Bxf6 gxf6 16. Re4 Nxf3+ 17. Qxf3 f5 18. Rh4 f6 19. Rd1 Rad8 20. Rhd4 1-0

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.11"]
[Round "9"]
[White "Milev, Zdravko"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E51"]
[PlyCount "75"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. e3 0-0 6. Bd3 Nc6 7. 0-0 dxc4 8. Bxc4 Bd6 9. Nb5 e5 10. dxe5 Bxe5 11. Nxe5 Nxe5 12. Be2 c6 13. Nd6 Qc7 14. Nxc8 Raxc8 15. h3 Rcd8 16. Qc2 Rfe8 17. Bd2 Ng6 18. Rfd1 Rd7 19. Bc3 Red8 20. g3 Rxd1+ 21. Rxd1 Rxd1+ 22. Qxd1 Qd7 23. Qxd7 Nxd7 24. f4 Ne7 25. e4 f5 26. Bc4+ Kf8 27. exf5 Nb6 28. Be6 Nbd5 29. Be5 Ne3 30. g4 h5 31. Kf2 N7d5 32. g5 Nc4 33. Kg3 Nce3 34. Kf3 Nc4 35. Ke4 Nd2+ 36. Kd3 Nf1 37. Bd6+ Ke8 38. f6 1-0

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.10"]
[Round "8"]
[White "Kostov Petkov, Petko"]
[Black "Minev, Nikolay Nikolaev"]
[Result "1-0"]
[ECO "B99"]
[PlyCount "63"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Be7 9. Qf3 Qc7 10. 0-0-0 Nbd7 11. Be2 b5 12. e5 Bb7 13. exf6 Bxf3 14. Bxf3 d5 15. Nxe6 fxe6 16. Bh5+ Kd8 17. fxe7+ Kc8 18. Rhf1 Kb7 19. f5 Qc4 20. Bg3 Nf6 21. Be2 Qc5 22. fxe6 Rac8 23. Rd2 Ne4 24. Nxe4 dxe4 25. Bd6 Qg5 26. Bf4 Qg6 27. Rd7+ Ka8 28. Rfd1 Qxe6 29. Be3 Qc6 30. c3 Qf6 31. Ra7+ Kb8 32. Rdd7 1-0

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.09"]
[Round "7"]
[White "Pipkov, Lubomir"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C67"]
[PlyCount "124"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. 0-0 Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Ba4 0-0 9. d4 Bf6 10. Re1 Nf5 11. c3 d5 12. Bf4 Bg5 13. Qg4 Bxf4 14. Qxf4 Qd6 15. Qxd6 Nxd6 16. Re7 c6 17. Bc2 Be6 18. Rc7 Rfb8 19. Nd2 Kf8 20. Re1 Ne8 21. Rxe6 Nxc7 22. Re3 Re8 23. Nf3 g6 24. h4 h5 25. Ne5 Kg7 26. Rg3 Ne6 27. f4 Nxf4 28. Rf3 Rxe5 29. dxe5 Ne6 30. Re3 Re8 31. Kf2 Nc5 32. Kf3 a5 33. a4 Ne6 34. Kf2 Rb8 35. b4 axb4 36. cxb4 Nd4 37. Bb1 Ra8 38. Ra3 Nb5 39. Ra1 Nc3 40. Bc2 d4 41. Bb3 Re8 42. Re1 d3 43. Rc1 Ne4+ 44. Ke3 Ng3 45. Kxd3 Rxe5 46. Rc4 Nf5 47. Re4 Rxe4 48. Kxe4 Kf6 49. a5 Ke7 50. Kf4 Nxh4 51. b5 cxb5 52. Bd5 Kd6 53. Bxb7 Kc5 54. Ke5 Nf5 55. a6 Kb6 56. Bd5 Nh6 57. Kf6 Kxa6 58. Kg5 Nf5 59. Bxf7 Ne3 60. Bxg6 Nxg2 61. Bd3 h4 62. Bxb5+ Kxb5 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.07"]
[Round "6"]
[White "Kostov Petkov, Petko"]
[Black "Prahov, Valentin Asenov"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "80"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 Nf6 4. e5 Nd5 5. d4 cxd4 6. cxd4 d6 7. Nc3 dxe5 8. dxe5 Nxc3 9. Qxd8+ Kxd8 10. bxc3 Bg4 11. Bf4 Bxf3 12. gxf3 e6 13. Rb1 Kc7 14. Bd3 Be7 15. Ke2 h5 16. Be4 Rac8 17. Be3 b6 18. f4 g6 19. Rhd1 Rhd8 20. Rxd8 Kxd8 21. Rd1+ Ke8 22. Bd3 Rd8 23. Bb5 Rxd1 24. Kxd1 Kd7 25. Ke2 Kc7 26. Kd3 Kb7 27. c4 Nb4+ 28. Kc3 Nc6 29. Kd3 a6 30. Ba4 Kc7 31. Ke4 Kb7 32. h3 Kc7 33. Kd3 Kb7 34. Ke4 Kc7 35. Kd3 Nb4+ 36. Kc3 Nc6 37. Kd3 Ba3 38. Kc3 Kb7 39. Kb3 Bf8 40. Kc3 Kc7 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.06"]
[Round "5"]
[White "Chipev, Teodor Antonov"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "C97"]
[PlyCount "55"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 0-0 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Rd8 13. d5 c4 14. Nf1 Bd7 15. g4 Nb7 16. Ng3 g6 17. Bg5 Nc5 18. Qd2 Rab8 19. Rad1 Bc8 20. Nh2 Ne8 21. Be3 a5 22. a3 Na4 23. Bxa4 bxa4 24. f4 exf4 25. Bxf4 Qb6+ 26. Qd4 Bf6 27. Qxb6 Rxb6 28. Re2 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.05"]
[Round "4"]
[White "Kostov Petkov, Petko"]
[Black "Piskov, Kamen Penev"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "119"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Qxe5+ Qe7 6. Qxe7+ Bxe7 7. Bb3 0-0 8. Nf3 Ne8 9. 0-0 c6 10. Re1 Bd8 11. d4 d5 12. Bf4 Bc7 13. Ne2 Bxf4 14. Nxf4 Nd6 15. Nd2 a5 16. a4 Na6 17. c4 dxc4 18. Nxc4 Nxc4 19. Bxc4 Nb4 20. Re7 Rb8 21. Rc7 b6 22. Re1 b5 23. axb5 cxb5 24. Bf1 g5 25. Nh5 Be6 26. Nf6+ Kh8 27. Rxe6 Nd5 28. Nxd5 fxe6 29. Nc3 b4 30. Ne4 h6 31. Nc5 Rfc8 32. Re7 Rb6 33. h4 Rd6 34. Ne4 Rdc6 35. hxg5 hxg5 36. Ra7 Rc1 37. f3 Kg8 38. Nf6+ Kf8 39. Nh7+ Ke8 40. Nf6+ Kf8 41. Nd7+ Kg8 42. Nc5 g4 43. Rxa5 Rd1 44. Nd3 gxf3 45. gxf3 Rc4 46. d5 exd5 47. Rxd5 Rb1 48. Kf2 Kg7 49. Be2 Kf6 50. Ke3 Rc2 51. Rd4 b3 52. Rb4 Rh1 53. Rxb3 Rh2 54. Rb6+ Kg7 55. Nf4 Rc8 56. Bd3 Re8+ 57. Be4 Rh1 58. Rb7+ Kh8 59. Kf2 Rd1 60. Bd5 1-0

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.03"]
[Round "3"]
[White "Dimitrov Krastev, Krastjo"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "E62"]
[PlyCount "22"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. Nc3 d6 5. Bg2 0-0 6. d4 Nc6 7. h3 e5 8. Be3 Bf5 9. d5 Ne7 10. Nh4 Bc8 11. Qd2 Nd7 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.02"]
[Round "2"]
[White "Kostov Petkov, Petko"]
[Black "Popov, Luben"]
[Result "1/2-1/2"]
[ECO "B23"]
[PlyCount "81"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 c5 3. Bc4 d6 4. d3 Nc6 5. Nge2 Nf6 6. 0-0 Be7 7. h3 0-0 8. f4 Na5 9. f5 a6 10. a4 Nxc4 11. dxc4 h6 12. Ng3 Bd7 13. Nh5 Bc6 14. Nxf6+ Bxf6 15. a5 Qe7 16. Qh5 Bg5 17. Bxg5 Qxg5 18. Qxg5 hxg5 19. Rad1 Rad8 20. f6 Rfe8 21. Rf5 gxf6 22. Rxf6 Re6 23. Rf5 f6 24. Rdf1 Kg7 25. Kf2 Re7 26. Ke3 Rf7 27. R5f3 Rh8 28. Rd1 Rd7 29. Rf2 Kf7 30. Rdf1 Rh6 31. Ne2 Rd8 32. Ng3 Bd7 33. Ne2 Ke7 34. Nc3 Be6 35. b3 g4 36. hxg4 Rg8 37. Kd3 Rxg4 38. Nd1 Rhh4 39. Re2 Rh2 40. Ne3 Rg3 41. Ref2 1/2-1/2

[Event "BUL-ch14"]
[Site "Sofia"]
[Date "1960.02.01"]
[Round "1"]
[White "Bobotsov, Milko Georgiev"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "C63"]
[PlyCount "54"]
[EventDate "1960.02.01"]
[EventType "tourn"]
[EventRounds "19"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 Nf6 5. exf5 Bc5 6. 0-0 0-0 7. Nxe5 Nd4 8. Nf3 Nxf5 9. d4 Bb6 10. Bg5 c6 11. Bd3 d5 12. Ne2 h6 13. Bxf6 Qxf6 14. c3 Bc7 15. Bc2 Nh4 16. Nxh4 Qxh4 17. Ng3 Bd7 18. Bg6 Bg4 19. Qb3 Rab8 20. Rae1 Qg5 21. Bb1 Qh4 22. c4 dxc4 23. Qxc4+ Kh8 24. d5 Rf4 25. Qd3 Kg8 26. d6 Bb6 27. Qh7+ Kf7 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.28"]
[Round "15"]
[White "Kostov Petkov, Petko"]
[Black "Kolarov, Atanas Stefanov"]
[Result "1-0"]
[ECO "B94"]
[PlyCount "72"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. Nb3 Qc7 10. Bd3 Be7 11. 0-0-0 0-0 12. f4 b5 13. a3 Bb7 14. Kb1 Nb6 15. Qe2 Nc4 16. Bxc4 bxc4 17. Nd4 Rab8 18. e5 Nd5 19. Nxd5 Bxd5 20. Bxe7 Qxe7 21. Ka2 dxe5 22. fxe5 c3+ 23. b3 a5 24. Rd3 Rfc8 25. Qe3 Qc7 26. a4 Rb4 27. Nb5 Rxb5 28. axb5 a4 29. Rxc3 axb3+ 30. Kb2 Qxc3+ 31. Qxc3 Rxc3 32. Kxc3 bxc2 33. Kxc2 Kf8 34. Rd1 Bxg2 35. b6 f6 36. Rg1 Be4+ 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.26"]
[Round "14"]
[White "Bobotsov, Milko Georgiev"]
[Black "Kostov Petkov, Petko"]
[Result "1/2-1/2"]
[ECO "D41"]
[PlyCount "56"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. c4 e6 2. Nf3 Nf6 3. Nc3 d5 4. e3 c5 5. d4 Nc6 6. cxd5 Nxd5 7. Bc4 cxd4 8. exd4 Be7 9. 0-0 0-0 10. Bxd5 exd5 11. Qb3 Bg4 12. Qxb7 Bxf3 13. Qxc6 Rc8 14. Qa4 Bd6 15. gxf3 Qh4 16. Re1 Qh3 17. f4 Qg4+ 18. Kf1 Qh3+ 19. Ke2 Qg4+ 20. f3 Rfe8+ 21. Be3 Rxe3+ 22. Kxe3 Bxf4+ 23. Kd3 Qxf3+ 24. Kc2 Qf2+ 25. Kb3 Rb8+ 26. Nb5 Qf3+ 27. Kc2 Rc8+ 28. Nc3 Qf2+ 1/2-1/2

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.25"]
[Round "13"]
[White "Kostov Petkov, Petko"]
[Black "Pantaleev, Dimitar Dimitrov"]
[Result "1-0"]
[ECO "C41"]
[PlyCount "81"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. Nf3 d6 4. d4 exd4 5. Nxd4 Be7 6. Bc4 0-0 7. 0-0 Nxe4 8. Nxe4 d5 9. Bd3 dxe4 10. Bxe4 Bf6 11. Be3 Nd7 12. c3 g6 13. Re1 Bg7 14. Nb3 c6 15. Bd4 Nf6 16. Bc2 b6 17. Qf3 Bd7 18. h3 c5 19. Be5 c4 20. Nd4 b5 21. Qb7 Qc8 22. Qf3 Qd8 23. Rad1 Qb6 24. Nf5 Bxf5 25. Bxf5 Rad8 26. Bc2 Nh5 27. Bh2 b4 28. g4 b3 29. axb3 cxb3 30. Bd3 Nf6 31. Bc4 a5 32. Rxd8 Qxd8 33. Bxb3 Qb6 34. g5 Nd7 35. Qd5 Nc5 36. Ba2 Ne6 37. Qd2 Rd8 38. Bd5 Nc5 39. h4 Na4 40. Re2 Nxb2 41. Qxb2 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.23"]
[Round "12"]
[White "Kadrev, Zdravko Minchev"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "B00"]
[PlyCount "45"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 Nc6 2. Nc3 Nf6 3. d4 d5 4. e5 Ne4 5. Nce2 e6 6. f3 Qh4+ 7. g3 Nxg3 8. Nxg3 Nxd4 9. f4 Bc5 10. Nf3 Nxf3+ 11. Qxf3 Bd7 12. Be3 d4 13. Bf2 Bc6 14. Bb5 Bxb5 15. Qxb7 a6 16. Qxa8+ Kd7 17. Qf3 Bc6 18. Ne4 Qe7 19. 0-0-0 f5 20. exf6 gxf6 21. Bxd4 Bxd4 22. Rxd4+ Kc8 23. Qc3 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.22"]
[Round "11"]
[White "Popov, Luben"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E83"]
[PlyCount "97"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[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 a6 7. Qd2 Nc6 8. 0-0-0 Rb8 9. h4 b5 10. h5 e5 11. d5 Nd4 12. hxg6 fxg6 13. Nge2 b4 14. Nb1 b3 15. a3 Nc2 16. Bg5 Qe8 17. Nbc3 Rf7 18. Ng1 Nd7 19. Bd3 Nd4 20. Be3 Nc5 21. Nh3 Bxh3 22. Rxh3 Na4 23. Kb1 Nxc3+ 24. Qxc3 Qa4 25. Rc1 c5 26. dxc6 Nxc6 27. c5 d5 28. exd5 e4 29. Qc4 Rb4 30. Qxa6 exd3 31. Qxa4 Rxa4 32. dxc6 Re7 33. f4 Rae4 34. Bd2 Rd4 35. Rc3 Rc7 36. Rcxd3 Rxc6 37. Rxd4 Bxd4 38. Rxb3 Rxc5 39. Be3 Bxe3 40. Rxe3 Rc4 41. g3 h5 42. b3 Rd4 43. Kc2 Kf7 44. b4 Kf6 45. Kc3 Rd5 46. a4 Rf5 47. a5 h4 48. gxh4 Rxf4 49. a6 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.20"]
[Round "10"]
[White "Kostov Petkov, Petko"]
[Black "Popov, Vladilen"]
[Result "0-1"]
[ECO "C29"]
[PlyCount "107"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Be7 6. d4 Bb4 7. Bd2 c5 8. Bd3 Nxd2 9. Qxd2 cxd4 10. Qf4 Qa5 11. Nxd4 Bxc3+ 12. bxc3 Qxc3+ 13. Ke2 0-0 14. Rab1 Nc6 15. Nf3 f6 16. Rb3 Qc5 17. Qh4 h6 18. Rb5 Qe7 19. Kd1 Nxe5 20. Nxe5 Qxe5 21. Re1 Qd6 22. Qh5 f5 23. Re8 a6 24. Rb3 b5 25. Rc3 Bd7 26. Rxa8 Rxa8 27. Bxf5 Rf8 28. Rf3 Be8 29. Qg4 Bf7 30. h4 Qe5 31. Bg6 Bxg6 32. Rxf8+ Kxf8 33. Qxg6 Qd4+ 34. Kc1 Qa1+ 35. Kd2 Qd4+ 36. Kc1 Qf4+ 37. Kd1 Qf1+ 38. Kd2 Qf4+ 39. Kd1 Qxh4 40. Qd6+ Qe7 41. Qxd5 Qf6 42. Qa8+ Kf7 43. Qd5+ Kg6 44. Ke2 h5 45. Qd3+ Kh6 46. a3 Qf4 47. Qd8 Qe4+ 48. Kf1 Qxc2 49. Qd6+ Qg6 50. Qd2+ Qg5 51. Qb4 h4 52. Kg1 Kh5 53. Qd6 Qe3+ 54. Kh1 0-1

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.19"]
[Round "9"]
[White "Radev Iordanov, Nikolay"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "E92"]
[PlyCount "81"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[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. Nf3 0-0 6. Be2 e5 7. d5 c5 8. 0-0 Nh5 9. g3 Bh3 10. Re1 h6 11. a3 Nd7 12. Bd2 Kh7 13. Kh1 Ndf6 14. Rb1 Ng4 15. Kg1 f5 16. Bf1 Bxf1 17. Rxf1 Ngf6 18. exf5 gxf5 19. Nh4 Qd7 20. Qc2 e4 21. f3 Rae8 22. Rbe1 exf3 23. Rxe8 Nxe8 24. Rxf3 Bd4+ 25. Kg2 Neg7 26. g4 Nf6 27. Nxf5 Nxf5 28. Rxf5 Kg7 29. g5 Ng4 30. gxh6+ Nxh6 31. Bxh6+ Kxh6 32. Qd2+ Kh7 33. Rh5+ Kg8 34. Rg5+ Kh8 35. Ne4 Qf7 36. Qd3 Bg7 37. Qh3+ Kg8 38. Qe6 Qxe6 39. dxe6 Rf4 40. Nxd6 Kf8 41. Rxg7 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.17"]
[Round "8"]
[White "Kostov Petkov, Petko"]
[Black "Khadshipetrov, Alexander Mateev"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "103"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nd7 5. Nf3 Ne7 6. Bd3 Nc6 7. 0-0 Qb6 8. Be2 Be7 9. Na3 cxd4 10. cxd4 0-0 11. Nc2 f6 12. exf6 Nxf6 13. Bd3 Bd6 14. h3 e5 15. dxe5 Nxe5 16. Be3 Nxf3+ 17. Qxf3 Bc5 18. Bxc5 Qxc5 19. Qe3 Qd6 20. Rfe1 Bd7 21. Qe5 Qxe5 22. Rxe5 Rae8 23. Rae1 Rxe5 24. Rxe5 Re8 25. Rxe8+ Bxe8 26. Nd4 Kf7 27. f4 Nh5 28. Ne2 g6 29. g4 Ng7 30. Kf2 Ke6 31. Nd4+ Kd6 32. b4 a6 33. Ke3 Bd7 34. a3 Ne6 35. f5 Nxd4 36. fxg6 hxg6 37. Kxd4 Be8 38. g5 Bf7 39. h4 Be8 40. Be2 Bf7 41. Bf3 b6 42. Be2 a5 43. Bf3 axb4 44. axb4 Bg8 45. h5 gxh5 46. Bxh5 Ke6 47. Bg6 Kd6 48. Bf5 Kc6 49. g6 Kd6 50. Bg4 Kc6 51. Ke5 d4 52. Be2 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.16"]
[Round "7"]
[White "Padevsky, Nikola Bochev"]
[Black "Kostov Petkov, Petko"]
[Result "1-0"]
[ECO "C63"]
[PlyCount "60"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d4 fxe4 5. Nxe5 Qh4 6. Nc3 Nxe5 7. dxe5 c6 8. Be2 d5 9. exd6 Bf5 10. Be3 0-0-0 11. Qd4 Bxd6 12. Qxa7 Bb8 13. Qa8 Ne7 14. a4 Bg4 15. Bf4 Kd7 16. Qxb7+ Ke6 17. Bc4+ Kf5 18. Bxb8 Rxb8 19. Qd7+ Kg6 20. Qd6+ Qf6 21. Nxe4 Qxd6 22. Nxd6 Rhd8 23. Bd3+ Kf6 24. Ne4+ Ke5 25. f3 Bf5 26. 0-0-0 Nd5 27. Rhe1 Bxe4 28. Bxe4 Kf6 29. b3 Nc3 30. Rxd8 Rxd8 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.14"]
[Round "6"]
[White "Kostov Petkov, Petko"]
[Black "Minev, Nikolay Nikolaev"]
[Result "1/2-1/2"]
[ECO "B77"]
[PlyCount "35"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[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 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 0-0 8. f3 Na5 9. Bb3 Nxb3 10. Nxb3 d6 11. Qd2 Be6 12. 0-0-0 a6 13. Kb1 b5 14. Nd5 Bxd5 15. exd5 Rc8 16. Rhe1 Qc7 17. Re2 Rfe8 18. g4 1/2-1/2

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.11"]
[Round "4"]
[White "Kostov Petkov, Petko"]
[Black "Martinov Andonov, Georgi"]
[Result "1-0"]
[ECO "B33"]
[PlyCount "80"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 Nf6 6. Be3 e5 7. Ndb5 a6 8. Na3 Be6 9. Nc4 d5 10. exd5 Nxd5 11. Nxd5 Qxd5 12. Qxd5 Bxd5 13. 0-0-0 Be6 14. Be2 Be7 15. Nb6 Rd8 16. Bc4 Bf5 17. Rxd8+ Bxd8 18. Rd1 0-0 19. Nd7 Re8 20. Nc5 b5 21. Bd5 Nb4 22. Bb3 a5 23. a3 Nc6 24. Nb7 Nd4 25. Bxd4 exd4 26. Nd6 Bg5+ 27. Kb1 Bxc2+ 28. Kxc2 Re2+ 29. Kb1 Rxf2 30. Nxf7 Be3 31. Nd6+ Kf8 32. Bd5 b4 33. axb4 axb4 34. Bf3 g5 35. h3 h5 36. Ne4 g4 37. hxg4 hxg4 38. Nxf2 gxf3 39. Ng4 fxg2 40. Nxe3 dxe3 1-0

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.10"]
[Round "3"]
[White "Stefanov, Josif Jovchev"]
[Black "Kostov Petkov, Petko"]
[Result "0-1"]
[ECO "E65"]
[PlyCount "80"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 d6 4. d4 Bg7 5. 0-0 0-0 6. c4 c5 7. Nc3 Nc6 8. h3 cxd4 9. Nxd4 Nxd4 10. Qxd4 Be6 11. Qh4 Rc8 12. b3 Rc5 13. Bf3 Qa5 14. Bd2 g5 15. Qd4 Qd8 16. Kg2 Qc8 17. Rfe1 d5 18. Be3 Ne4 19. Qd3 Nxc3 20. Bxc5 Qxc5 21. cxd5 Bxd5 22. e4 Bc6 23. Rac1 Qe5 24. Rc2 Nb5 25. b4 Qd4 26. Qe2 Qf6 27. Rc5 Nd4 28. Qe3 Qxf3+ 29. Qxf3 Nxf3 30. Kxf3 f5 31. Ke3 Bxe4 32. f3 Bc6 33. b5 Be8 34. Rc7 f4+ 35. gxf4 gxf4+ 36. Kd2 Bxb5 37. Rxb7 Rd8+ 38. Kc1 Rc8+ 39. Kd2 Bc3+ 40. Kd1 Bc6 0-1

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.08"]
[Round "2"]
[White "Kostov Petkov, Petko"]
[Black "Dimitrov Iliev, Ilia"]
[Result "0-1"]
[ECO "B22"]
[PlyCount "120"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. Na3 cxd4 8. Nb5 Qd8 9. Nbxd4 Nxd4 10. Qxd4 Qxd4 11. Nxd4 Bd6 12. 0-0 a6 13. Rd1 Ke7 14. Bf3 Rd8 15. Nb3 e5 16. Be3 Bg4 17. Bb6 Rd7 18. Bxg4 Nxg4 19. Nc5 Bxc5 20. Bxc5+ Ke6 21. Rxd7 Kxd7 22. Rd1+ Kc6 23. b4 Nf6 24. f3 Nd7 25. Be3 b5 26. Rc1 Kd5 27. Rd1+ Ke6 28. Kf2 Rc8 29. Rc1 f5 30. Ke2 Nf6 31. Bc5 g5 32. Rd1 Nd5 33. Kd2 a5 34. a3 axb4 35. cxb4 Ra8 36. Ra1 h5 37. Kc2 g4 38. Kb3 Nf4 39. g3 Nd3 40. fxg4 fxg4 41. Rd1 e4 42. Be3 Ne5 43. Bc1 Nd3 44. Be3 Rd8 45. Rd2 Rc8 46. Ra2 Nc1+ 47. Bxc1 Rxc1 48. a4 bxa4+ 49. Kxa4 Ke5 50. Rb2 e3 51. b5 Ke4 52. b6 Rc8 53. Kb5 Kf3 54. b7 Rb8 55. Kc6 e2 56. Rb1 Kf2 57. Kc7 Rxb7+ 58. Kxb7 e1Q 59. Rxe1 Kxe1 60. Kc6 Kf2 0-1

[Event "BUL-ch13"]
[Site "Sofia"]
[Date "1959.02.07"]
[Round "1"]
[White "Karastoichev, Emil Stefanov"]
[Black "Kostov Petkov, Petko"]
[Result "0-1"]
[ECO "C91"]
[PlyCount "76"]
[EventDate "1959.02.07"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 b5 6. Bb3 Be7 7. Re1 0-0 8. d4 d6 9. c3 Bb7 10. Nbd2 Nd7 11. a4 Bf6 12. Nf1 Ne7 13. Bg5 Ng6 14. Bc1 Re8 15. Ng3 c5 16. Nf5 exd4 17. cxd4 Be7 18. axb5 axb5 19. Rxa8 Bxa8 20. Nxe7+ Qxe7 21. Bg5 Nf6 22. dxc5 dxc5 23. Bd5 Ne5 24. Bxa8 Rxa8 25. Nh4 Rd8 26. Qb3 Nd3 27. Rf1 Qe5 28. Nf3 Qxe4 29. Qxb5 Qb4 30. Qxb4 cxb4 31. Bxf6 gxf6 32. Rd1 Rc8 33. b3 Rc3 34. Nd4 Nc5 35. Nc6 Rxb3 36. h4 Rd3 37. Rc1 b3 38. h5 b2 0-1

