[Event "BUL-chT2"]
[Site "Sunny Beach"]
[Date "2009.06.14"]
[Round "7.7"]
[White "Popov, Ilian"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2222"]
[BlackElo "2349"]
[PlyCount "60"]
[EventDate "2009.06.08"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Be3 0-0 9. g4 Be6 10. g5 Nfd7 11. Rg1 Nc6 12. Nd5 a5 13. a4 Bxd5 14. exd5 Nb4 15. c3 Na6 16. Bd3 g6 17. Rg3 Re8 18. Qg4 Nc7 19. 0-0-0 Bf8 20. c4 Na6 21. Nd2 Nac5 22. Bc2 Bg7 23. Bxc5 Nxc5 24. Ne4 Rc8 25. b3 Nxe4 26. Qxe4 Qb6 27. Rf3 Qd8 28. h4 Rf8 29. Rg1 Qb6 30. h5 Qd4 1/2-1/2

[Event "BUL-chT2"]
[Site "Sunny Beach"]
[Date "2009.06.13"]
[Round "6.7"]
[White "Atanasov, Margarit"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "B95"]
[BlackElo "2349"]
[PlyCount "62"]
[EventDate "2009.06.08"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Qd2 e6 8. 0-0-0 Qc7 9. Bd3 Be7 10. f4 b5 11. Rhe1 b4 12. Nd5 exd5 13. exd5 Nb6 14. Bxf6 gxf6 15. Rxe7+ Kxe7 16. Nc6+ Kf8 17. f5 h6 18. Be2 Bb7 19. Bf3 a5 20. Qd4 Nd7 21. Qh4 Re8 22. Rd4 Rh7 23. Rg4 Qb6 24. Nd4 Re5 25. Rg3 h5 26. Bxh5 Rxh5 27. Qxh5 Qxd4 28. c3 Qg1+ 29. Kc2 Qf2+ 30. Kb3 Nc5+ 31. Kc4 Ba6# 0-1

[Event "BUL-chT2"]
[Site "Sunny Beach"]
[Date "2009.06.12"]
[Round "5.7"]
[White "Atanasov, Petko"]
[Black "Nikolov, Jordan"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2349"]
[BlackElo "2104"]
[PlyCount "77"]
[EventDate "2009.06.08"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 c5 6. d5 exd5 7. cxd5 d6 8. Nc3 g6 9. g3 Bg7 10. Bg2 0-0 11. 0-0 Nbd7 12. Qa4 Bb7 13. Rd1 a6 14. Qh4 b5 15. Bh6 Re8 16. Bxg7 Kxg7 17. b4 Rc8 18. Rac1 Ne5 19. bxc5 Nxf3+ 20. Bxf3 Rxc5 21. Na2 Nd7 22. Qb4 Re5 23. Qb3 Rxc1 24. Nxc1 Nc5 25. Qb4 Qb6 26. Nd3 Nxd3 27. Rxd3 a5 28. Qb2 Kg8 29. e3 Re8 30. h4 h5 31. Qf6 Re5 32. Rd4 Rf5 33. Qe7 Rxf3 34. g4 hxg4 35. h5 g3 36. fxg3 Rf5 37. Qe8+ Kg7 38. h6+ Kxh6 39. Qh8+ 1-0

[Event "BUL-chT2"]
[Site "Sunny Beach"]
[Date "2009.06.11"]
[Round "4.6"]
[White "Atanasov, Petko"]
[Black "Vatkovski, Mitko"]
[Result "1-0"]
[ECO "A50"]
[WhiteElo "2349"]
[PlyCount "98"]
[EventDate "2009.06.08"]
[EventType "team-swiss"]
[EventRounds "7"]
[EventCountry "BUL"]
[SourceTitle "CBM 130 Extra"]
[Source "ChessBase"]
[SourceDate "2009.07.02"]
[SourceVersion "2"]
[SourceVersionDate "2009.07.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 b5 3. cxb5 a6 4. bxa6 Bxa6 5. Nc3 c6 6. Nf3 g6 7. g3 Bg7 8. Bg2 0-0 9. 0-0 d5 10. Qc2 Nbd7 11. Rd1 Qc7 12. Bf4 Qb7 13. b3 Nh5 14. Bg5 Rfe8 15. e4 e6 16. Rac1 Rec8 17. Qd2 Nhf6 18. e5 Ne8 19. Bh6 Ra7 20. g4 Qb4 21. Bxg7 Nxg7 22. Na4 Qe7 23. Nc5 Nxc5 24. Rxc5 Bb7 25. a4 Ne8 26. Rdc1 Nc7 27. Bf1 Na6 28. Bxa6 Rxa6 29. h3 Kg7 30. Kg2 h6 31. R1c3 g5 32. Ng1 Ba8 33. Rf3 Rb6 34. Ne2 Rcb8 35. Nc1 Bb7 36. Rf6 Rh8 37. a5 Rb5 38. Rxb5 cxb5 39. Nd3 Ba6 40. Nc5 Bb7 41. f4 gxf4 42. Qxf4 Bc6 43. Kh2 Ba8 44. g5 hxg5 45. Qxg5+ Kf8 46. Nxe6+ Ke8 47. Qg7 Rh5 48. Qg8+ Kd7 49. Nc5+ Kc7 1-0

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "1"]
[White "Arnaudov, Petar"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2255"]
[BlackElo "2370"]
[PlyCount "68"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 f6 7. 0-0 Qb6 8. Re1 fxe5 9. Nxe5 Nxe5 10. dxe5 0-0-0 11. Nd2 Ne7 12. Bg4 Ng6 13. Nf3 Be7 14. Qc2 Rdf8 15. Ng5 Bxg5 16. Bxg5 Qc7 17. Bh3 Rf7 18. Re2 Nf4 19. Bxf4 Rxf4 20. g3 Rf7 21. f4 g6 22. Rd1 Kb8 23. Bg2 Bc6 24. h4 Rd8 25. Red2 a6 26. Kh2 Re8 27. b3 Rc8 28. Rf2 Rff8 29. Re2 Rf7 30. Bh3 Re7 31. Qd2 b6 32. Qe3 Bb7 33. Bg4 Rd8 34. Red2 Rf8 1/2-1/2

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "4"]
[White "Atanasov, Petko"]
[Black "Dimitrov, Vladimir"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2370"]
[BlackElo "2465"]
[PlyCount "22"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 e6 2. Nf3 Nf6 3. c4 d5 4. e3 Be7 5. Bd3 dxc4 6. Bxc4 a6 7. 0-0 c5 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. a3 b5 11. Be2 Bb7 1/2-1/2

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "2"]
[White "Atanasov, Petko"]
[Black "Djonev, Svetozar"]
[Result "1-0"]
[ECO "E91"]
[WhiteElo "2370"]
[BlackElo "2225"]
[PlyCount "85"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. 0-0 c6 8. Qc2 Qe7 9. Rd1 Bg4 10. Be3 Nbd7 11. h3 Bxf3 12. Bxf3 Rfe8 13. d5 c5 14. a3 h6 15. b4 Rec8 16. Qb3 b6 17. Rab1 Ne8 18. Bg4 Nef6 19. Be2 Nh7 20. Qc2 h5 21. Rb3 Bf6 22. g3 Bg5 23. Qd2 Kg7 24. f4 exf4 25. gxf4 Bh6 26. Rf1 Nhf6 27. Bd3 Re8 28. Rf3 h4 29. Rb1 Nh5 30. Rbf1 Ng3 31. R1f2 Kh7 32. e5 dxe5 33. f5 Bxe3 34. Qxe3 Rf8 35. f6 Qd6 36. Qg5 e4 37. Rf4 Qe5 38. Nxe4 Nh5 39. Qxh4 Kg8 40. Rg4 Rae8 41. Kg2 Qd4 42. Qxh5 Re5 43. Rxg6+ 1-0

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "7"]
[White "Atanasov, Petko"]
[Black "Grigorov, Jordan N"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2370"]
[BlackElo "2385"]
[PlyCount "21"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. cxd5 exd5 6. Bf4 c6 7. e3 Bf5 8. Bd3 Bxd3 9. Qxd3 Nbd7 10. 0-0 0-0 11. Rfc1 1/2-1/2

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "8"]
[White "Atanasov, Petko"]
[Black "Kurtenkov, Atanas"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2370"]
[BlackElo "2365"]
[PlyCount "21"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Bd6 6. Qc2 0-0 7. Bd2 Nbd7 8. 0-0-0 Qe7 9. e4 Nxe4 10. Nxe4 dxe4 11. Qxe4 1/2-1/2

[Event "BUL-chT"]
[Site "Sofia"]
[Date "1991.??.??"]
[Round "1"]
[White "Atanasov, Petko"]
[Black "Peev, Peicho Chonev"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2370"]
[BlackElo "2400"]
[PlyCount "82"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 g6 2. e4 Bg7 3. Nc3 d6 4. Bg5 c6 5. Qd2 b5 6. Nge2 Nf6 7. f3 Nbd7 8. a4 b4 9. Nd1 a5 10. Bh6 Bxh6 11. Qxh6 Ba6 12. Qd2 c5 13. Ne3 Rc8 14. b3 0-0 15. d5 Ne5 16. Ng3 Bxf1 17. Rxf1 e6 18. dxe6 fxe6 19. 0-0-0 Nf7 20. Kb1 Qe7 21. Rfe1 Rfd8 22. Qe2 Qb7 23. Qc4 d5 24. exd5 Nxd5 25. Nxd5 exd5 26. Qf4 c4 27. Ne2 Re8 28. Nd4 Qb6 29. h4 Qd6 30. Qd2 Qf6 31. Rxe8+ Rxe8 32. Nb5 cxb3 33. cxb3 Qxh4 34. Nc7 Re5 35. Nxd5 Re6 36. Qc2 Re1 37. Nf6+ Kg7 38. Ne4 Rh1 39. Rxh1 Qxh1+ 40. Ka2 h5 41. Qb2+ Kf8 1/2-1/2

[Event "BUL-chT"]
[Site "Sofia"]
[Date "1991.??.??"]
[Round "2"]
[White "Atanasov, Petko"]
[Black "Semkov, Semko"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2370"]
[BlackElo "2460"]
[PlyCount "123"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 dxc4 5. Bxc4 c5 6. 0-0 a6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. a3 Ke7 10. b4 Bd6 11. Bb2 b5 12. Be2 Bb7 13. Ne5 Rd8 14. Nd2 Nbd7 15. Ndf3 Nxe5 16. Nxe5 Rac8 17. Bf3 Bxf3 18. gxf3 Rc2 19. Bd4 Nd5 20. Rdc1 Rdc8 21. Rxc2 Rxc2 22. f4 f6 23. Nd3 Rd2 24. Nc5 Nxf4 25. Ne4 Ne2+ 26. Kf1 Rc2 27. Bc5 Bxc5 28. Nxc5 Nc3 29. Kg2 f5 30. Nxa6 Ne4 31. Rf1 Rc6 32. Nc5 Nxc5 33. bxc5 Rxc5 34. Rb1 g5 35. Rb4 h5 36. a4 bxa4 37. Rxa4 Rc2 38. Ra8 h4 39. h3 Rd2 40. Rh8 Rd8 41. Rh7+ Kf6 42. Rh6+ Kf7 43. Kf1 e5 44. Kg2 e4 45. Ra6 Re8 46. Rb6 Re6 47. Rb5 Kf6 48. Ra5 Kg6 49. Ra8 f4 50. exf4 gxf4 51. Ra5 Re7 52. Kf1 f3 53. Ke1 Rd7 54. Rb5 Rd4 55. Ra5 Kf6 56. Rh5 Ke6 57. Rxh4 Kd5 58. Rh8 Kc4 59. Ra8 Kd3 60. Ra2 Kc3 61. Ra3+ Kb2 62. Ra8 1/2-1/2

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "10"]
[White "Delchev, Aleksander"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2360"]
[BlackElo "2370"]
[PlyCount "59"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. 0-0 Rb8 7. Nc3 Bb4 8. Qc2 0-0 9. Rd1 Be7 10. e4 b5 11. Qe2 b4 12. d5 bxc3 13. dxc6 Qe8 14. bxc3 Qxc6 15. Bg5 Qc5 16. Be3 Qa5 17. Nd4 Qa4 18. Bf4 Ba3 19. Rab1 Bd7 20. Bxc7 Rxb1 21. Rxb1 Rc8 22. Be5 Ne8 23. Rb7 Nd6 24. Qg4 Ne8 25. Bf3 Bf8 26. Bd1 Qa5 27. Nf3 Rd8 28. Bd4 e5 29. Qh5 Bc6 30. Qxf7+ 1-0

[Event "BUL-chT"]
[Site "Sofia"]
[Date "1991.??.??"]
[Round "3"]
[White "Kolev, Atanas"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2460"]
[BlackElo "2370"]
[PlyCount "81"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. Nf3 f5 2. g3 d6 3. d4 g6 4. Bg2 Bg7 5. 0-0 Nh6 6. c4 Nf7 7. d5 c6 8. Nd4 Qb6 9. Nb3 0-0 10. Be3 c5 11. Qc2 Bd7 12. Nc3 Na6 13. a3 Nc7 14. Nd2 a5 15. b3 Qa6 16. a4 Qb6 17. Rab1 Na6 18. Nf3 Nb4 19. Qd2 h6 20. Nh4 Kh7 21. f4 Rae8 22. Bf2 g5 23. fxg5 hxg5 24. Nf3 Bf6 25. Be3 Rg8 26. h4 gxh4 27. gxh4 Rg4 28. Ng5+ Nxg5 29. hxg5 Be5 30. Rf3 Qd8 31. Nd1 Kg7 32. Nf2 Rh4 33. Bf4 Bxf4 34. Rxf4 Rhh8 35. e4 e5 36. dxe6 Bxe6 37. exf5 Bf7 38. Re1 d5 39. f6+ Kg8 40. g6 Bxg6 41. Rg4 1-0

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "9"]
[White "Mitev, Georgi"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "A56"]
[WhiteElo "2280"]
[BlackElo "2370"]
[PlyCount "145"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. dxc5 Na6 4. a3 Nxc5 5. b4 Ne6 6. Nc3 g6 7. Bb2 Bg7 8. Qd2 0-0 9. Nd5 Nxd5 10. cxd5 Bxb2 11. Qxb2 Ng7 12. Nf3 d6 13. e3 Bf5 14. Nd2 Rc8 15. e4 Bd7 16. Bc4 b5 17. Be2 e5 18. dxe6 Nxe6 19. 0-0 Nf4 20. Nf3 Bc6 21. Qd2 Qf6 22. Bd3 Rfe8 23. Rae1 a6 24. Bb1 Bb7 25. Re3 Re7 26. Rfe1 Rce8 27. g3 Nh5 28. Qe2 Ng7 29. Qd2 Nh5 30. h3 h6 31. Kh2 Kg7 32. Qd4 Qxd4 33. Nxd4 Nf6 34. f3 Nd7 35. Nc2 Ne5 36. Ba2 Rc8 37. R1e2 Nc4 38. Bxc4 Rxc4 39. Rd3 d5 40. e5 Kf8 41. Nd4 Bc8 42. f4 Rec7 43. g4 Rc3 44. Ree3 Rxd3 45. Rxd3 Rc1 46. Kg3 Ke7 47. f5 gxf5 48. gxf5 Re1 49. f6+ Ke8 50. Nf3 Re4 51. Rxd5 Re3 52. Kf4 Rxa3 53. Nd4 Rc3 54. Rc5 Rc4 55. Rxc4 bxc4 56. h4 Bh3 57. Ke3 Kd7 58. Kd2 Bf1 59. Kc2 Bd3+ 60. Kc3 Bf1 61. Nf5 Ke6 62. Nxh6 Be2 63. Kd4 Bh5 64. Ng8 c3 65. Kxc3 Kxe5 66. Kc4 Kd6 67. Kd4 Bd1 68. Ne7 Ke6 69. Nd5 Kd6 70. Nf4 Kc6 71. h5 Bg4 72. h6 Bf5 73. Ne6 1-0

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "6"]
[White "Peev, Peicho Chonev"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "A55"]
[WhiteElo "2400"]
[BlackElo "2370"]
[PlyCount "88"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 0-0 7. 0-0 c6 8. Re1 h6 9. Bf1 Nh7 10. d5 c5 11. a3 Ng5 12. b4 Nxf3+ 13. Qxf3 Bg5 14. Rb1 a5 15. bxa5 Rxa5 16. Nb5 Ra6 17. Rb3 g6 18. Qd1 Kg7 19. g3 Bxc1 20. Qxc1 Nf6 21. f4 Re8 22. Bg2 Re7 23. Rf3 Bg4 24. Rf2 Bd7 25. fxe5 dxe5 26. d6 Re6 27. Nc7 Raxd6 28. Nxe6+ Bxe6 29. Ref1 Ng4 30. Rb2 Rd3 31. h3 Qd4+ 32. Kh1 Ne3 33. Re1 Nxc4 34. Rbe2 b5 35. Kh2 Rxa3 36. Rd1 Qc3 37. Qxc3 Rxc3 38. Rd8 b4 39. Rf2 b3 40. Bf3 Na3 41. Rb8 c4 42. Bg4 Bxg4 43. hxg4 Nb1 44. Kg2 Nd2 0-1

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "3"]
[White "Petkov, Vladimir"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E68"]
[WhiteElo "2295"]
[BlackElo "2370"]
[PlyCount "82"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. g3 Nbd7 4. Bg2 e5 5. c4 g6 6. Nc3 Bg7 7. 0-0 0-0 8. e4 Re8 9. d5 Rf8 10. Ne1 Ne8 11. Nd3 c5 12. dxc6 bxc6 13. Be3 Nb6 14. b3 Nc7 15. c5 dxc5 16. Nxc5 Qe7 17. Qc2 Rd8 18. Rfd1 Be6 19. Rxd8+ Rxd8 20. Rd1 h5 21. Rxd8+ Qxd8 22. Nd1 Bc8 23. Nb2 Nb5 24. Ncd3 Qd6 25. Qc5 Qxc5 26. Nxc5 Bf8 27. Nbd3 f6 28. f4 Bd6 29. a4 Nc3 30. Kf1 Bg4 31. h3 Be2+ 32. Ke1 Bxd3 33. Nxd3 Na2 34. fxe5 fxe5 35. h4 Nb4 36. Kd2 Nxd3 37. Kxd3 Bb4 38. Bh3 Kf7 39. Bd2 Bxd2 40. Kxd2 a5 41. Kc3 c5 1/2-1/2

[Event "BUL-chT"]
[Site "Sofia"]
[Date "1991.??.??"]
[Round "5"]
[White "Popchev, Milko"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2450"]
[BlackElo "2370"]
[PlyCount "33"]
[EventDate "1991.??.??"]
[EventType "team"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. Bd3 Bg4 6. Nbd2 Qe7+ 7. Qe2 Nd7 8. h3 Bh5 9. 0-0 Qxe2 10. Bxe2 Ne7 11. Re1 Bg6 12. c3 0-0 13. Nf1 Rfe8 14. Ne3 c6 15. Nh4 Nf6 16. Nxg6 hxg6 17. g4 1/2-1/2

[Event "BUL-ch 22nd"]
[Site "Pazardzik"]
[Date "1991.??.??"]
[Round "5"]
[White "Topalov, Veselin"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2455"]
[BlackElo "2370"]
[PlyCount "18"]
[EventDate "1991.??.??"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "BUL"]
[SourceTitle "TD"]
[Source "ChessBase"]
[SourceDate "1994.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1994.03.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bg5 0-0 6. e3 Nbd7 7. cxd5 exd5 8. Qc2 h6 9. Bh4 Re8 1/2-1/2

[Event "Berlin Empor op"]
[Site "Berlin East"]
[Date "1989.??.??"]
[Round "?"]
[White "Sveshnikov, Evgeny"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "2435"]
[BlackElo "2350"]
[PlyCount "137"]
[EventDate "1989.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GER"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 f6 7. 0-0 Qc7 8. Bf4 0-0-0 9. Bg3 Qb6 10. Qc1 fxe5 11. Nxe5 Nxe5 12. Bxe5 Nf6 13. b4 c4 14. a4 Bd6 15. a5 Qc7 16. Qe3 Kb8 17. Nd2 Bc8 18. Rae1 Bxe5 19. dxe5 Ng8 20. Bg4 Ne7 21. f4 h5 22. Bh3 d4 23. cxd4 Nd5 24. Qa3 c3 25. Rc1 Rhf8 26. g3 g5 27. Ne4 gxf4 28. Nxc3 Qc4 29. Rfd1 fxg3 30. Nxd5 gxh2+ 31. Kh1 Qxd5+ 32. Bg2 Qd7 33. b5 Rg8 34. Qc3 Rg7 35. Rd2 Qxb5 36. d5 Qd7 37. d6 a6 38. Rdc2 Rdg8 39. Qf3 Qb5 40. Rc5 Qb4 41. R5c4 Qb5 42. Rc5 Qd7 43. R1c2 Qf7 44. Qxf7 Rxf7 45. Kxh2 Rfg7 46. Rc7 Rxc7 47. Rxc7 Rg5 48. Re7 Ka7 49. d7 Bxd7 50. Rxd7 Ka8 51. Bxb7+ Kb8 52. Bxa6 Rxe5 53. Rb7+ Ka8 54. Rb5 Re2+ 55. Kg3 Ka7 56. Bb7 Rc2 57. a6 Rc3+ 58. Kh4 Re3 59. Kxh5 e5 60. Kg4 Re1 61. Kf3 e4+ 62. Kf2 Rc1 63. Re5 Rd1 64. Rxe4 Rd8 65. Ke3 Kb6 66. Rd4 Rh8 67. Rd6+ Ka7 68. Be4 Rg8 69. Bd3 1-0

[Event "Pazardzhik"]
[Site "Pazardzik"]
[Date "1988.??.??"]
[Round "?"]
[White "Atanasov, Petko"]
[Black "Brankov, Krasimir Dimitrov"]
[Result "1/2-1/2"]
[ECO "E67"]
[WhiteElo "2370"]
[PlyCount "98"]
[EventDate "1988.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 0-0 5. Bg2 d6 6. 0-0 Nbd7 7. Nc3 e5 8. Qc2 exd4 9. Nxd4 Nb6 10. Rd1 Nxc4 11. Ncb5 a6 12. Qxc4 axb5 13. Nxb5 Bd7 14. a4 d5 15. Qb3 c6 16. Nc3 b5 17. Be3 bxa4 18. Nxa4 Qa5 19. Ra3 Qb5 20. Qxb5 cxb5 21. Nb6 Rxa3 22. bxa3 Bg4 23. Kf1 Re8 24. Nxd5 Nxd5 25. Rxd5 Bf8 26. h3 Be6 27. Rxb5 Bxa3 28. g4 Bd6 29. Bd5 Bxd5 30. Rxd5 Bf8 31. Rd7 Bg7 32. Kg2 Bc3 33. Bh6 Bg7 34. Bg5 Bc3 35. Kf3 Be5 36. Bh6 Bg7 37. Bg5 Be5 38. Bh6 Bg7 39. Bg5 Be5 40. e3 Bc3 41. Be7 Be5 42. Ke2 Kg7 43. Kd3 Bf6 44. Bd6 h5 45. f4 hxg4 46. hxg4 Rd8 47. Rxd8 Bxd8 48. Ke4 Ba5 49. Kd5 f5 1/2-1/2

[Event "Shumen"]
[Site "Shumen"]
[Date "1988.??.??"]
[Round "?"]
[White "Atanasov, Petko"]
[Black "Krasenkow, Michal"]
[Result "0-1"]
[ECO "D01"]
[WhiteElo "2370"]
[PlyCount "132"]
[EventDate "1988.??.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 c6 5. Qd3 h6 6. Bh4 Qa5 7. Nd2 e6 8. Nb3 Qb6 9. e4 Bb4 10. f3 dxe4 11. fxe4 e5 12. a3 Be7 13. Bf2 Ng4 14. Bg1 exd4 15. Bxd4 Nde5 16. Bxb6 Nxd3+ 17. cxd3 axb6 18. Be2 Ne3 19. Kf2 Nc2 20. Rac1 Be6 21. Bd1 Bxb3 22. Bxc2 Be6 23. d4 0-0 24. h3 Bf6 25. Rcd1 c5 26. d5 Bd7 27. Rd3 b5 28. d6 c4 29. Rf3 Be5 30. Rd1 f6 31. Ke2 Ra6 32. Rd5 Rxd6 33. Rxd6 Bxd6 34. Kd1 b4 35. axb4 Bxb4 36. Nd5 Bd6 37. Nb6 Be6 38. b3 cxb3 39. Bxb3 Re8 40. Bd5 Bxd5 41. exd5 Bc5 42. Na4 Bf8 43. Rb3 Re4 44. Nb2 Rb4 45. Kc2 Rxb3 46. Kxb3 Kf7 47. Kc4 Ke7 48. Nd3 Kd6 49. Nf4 g5 50. Ne6 Be7 51. Nd4 Ke5 52. g4 Ba3 53. Nb5 Bb2 54. Kc5 Bc1 55. Kb6 Kxd5 56. Kxb7 Bb2 57. Nc7+ Ke5 58. Kc6 f5 59. gxf5 Kxf5 60. Nd5 h5 61. Ne3+ Ke4 62. Nc4 Bc1 63. Nd6+ Kf4 64. Kd5 Kg3 65. Ne4+ Kxh3 66. Nf6 h4 0-1

[Event "Pazardzhik"]
[Site "Pazardzik"]
[Date "1988.??.??"]
[Round "?"]
[White "Atanasov, Petko"]
[Black "Vukic, Milan"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "2370"]
[BlackElo "2455"]
[PlyCount "70"]
[EventDate "1988.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. 0-0 Bf5 5. d3 e6 6. Nfd2 e5 7. e4 dxe4 8. dxe4 Bg4 9. Qe1 Bc5 10. Nb3 Bb6 11. a4 a5 12. Na3 Be6 13. Nd2 Nbd7 14. Nac4 0-0 15. Qe2 Bc5 16. h3 Bxc4 17. Qxc4 Qe7 18. Kh2 Rad8 19. f4 exf4 20. gxf4 Nh5 21. Nf3 Ndf6 22. e5 Nd5 23. Ng5 h6 24. Bxd5 hxg5 25. Bf3 Nxf4 26. Bxf4 gxf4 27. Qxf4 Rd4 28. Qg3 Rd2+ 29. Kh1 Rxc2 30. Rae1 Rxb2 31. e6 f5 32. Bg2 Bd6 33. Qd3 Qg5 34. Re2 Rxe2 35. Qxe2 Qg3 0-1

[Event "BUL it"]
[Site "Bulgaria"]
[Date "1988.??.??"]
[Round "?"]
[White "Tosic, Miroslav"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2395"]
[BlackElo "2370"]
[PlyCount "75"]
[EventDate "1988.??.??"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d6 3. c4 Bg4 4. g3 c6 5. Bg2 h6 6. Nc3 Nbd7 7. 0-0 e5 8. b3 Be7 9. Bb2 0-0 10. h3 Bf5 11. Nh4 Bh7 12. e4 Qa5 13. Re1 Rfe8 14. a3 Rad8 15. d5 cxd5 16. cxd5 Rc8 17. b4 Qd8 18. Nf3 Nb6 19. Nd2 Nfd7 20. Rc1 a6 21. h4 Nc4 22. Nxc4 Rxc4 23. Qd3 b5 24. Nb1 Nb6 25. Nd2 Rxc1 26. Rxc1 g5 27. h5 Qd7 28. Rc6 Na4 29. Bc1 Rc8 30. Qc2 Rxc6 31. dxc6 Qc7 32. Nb3 d5 33. Na5 Nb6 34. Qe2 d4 35. Bd2 Kg7 36. Qd3 f6 37. Qc2 Bg8 38. Bf1 1/2-1/2

[Event "Pazardzhik"]
[Site "Pazardzik"]
[Date "1988.??.??"]
[Round "?"]
[White "Tosic, Miroslav"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "C16"]
[WhiteElo "2395"]
[BlackElo "2370"]
[PlyCount "87"]
[EventDate "1988.??.??"]
[EventType "tourn"]
[EventRounds "9"]
[EventCountry "BUL"]
[SourceTitle "EXT 2004"]
[Source "ChessBase"]
[SourceDate "2003.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2003.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7 5. Bd2 b6 6. Nb5 Bxd2+ 7. Qxd2 Ne7 8. Nf3 0-0 9. Bd3 a6 10. Na3 c5 11. c3 Nbc6 12. 0-0 Nf5 13. Rac1 c4 14. Bb1 Qe7 15. Nc2 f6 16. Rce1 Bd7 17. Re2 Rae8 18. Nce1 fxe5 19. Nxe5 Nxe5 20. Rxe5 g6 21. f4 Nd6 22. Nf3 Qf6 23. g3 Nf7 24. Ree1 Kg7 25. h4 Bc8 26. Qh2 b5 27. Rf2 a5 28. g4 Kg8 29. g5 Qg7 30. Ref1 Nd6 31. Ne5 Nf5 32. Qh3 b4 33. Rh2 a4 34. a3 bxc3 35. bxc3 Re7 36. Bc2 Rb7 37. Rf3 Rb3 38. h5 gxh5 39. Qxh5 Rxa3 40. Rfh3 Ra1+ 41. Kf2 Ra2 42. Ke1 h6 43. Kd2 a3 44. gxh6 1-0

[Event "Ruse"]
[Site "Ruse"]
[Date "1987.??.??"]
[Round "?"]
[White "Kolev, Aleksandar"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E94"]
[BlackElo "2375"]
[PlyCount "68"]
[EventDate "1987.??.??"]
[EventType "tourn"]
[EventRounds "12"]
[EventCountry "BUL"]
[EventCategory "3"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. e4 g6 6. Be2 Bg7 7. 0-0 0-0 8. Qc2 Re8 9. Rd1 exd4 10. Nxd4 Nc5 11. f3 Nh5 12. Bf1 c6 13. Be3 f5 14. Nxc6 bxc6 15. Bxc5 Be5 16. Bd4 Qe7 17. Qd2 Bf4 18. Qf2 Qg5 19. c5 dxc5 20. Bxc5 Be6 21. g3 Rab8 22. b3 Rb7 23. Bg2 Nxg3 24. hxg3 Bxg3 25. Qc2 Qh5 26. Ne2 Bh2+ 27. Kf1 fxe4 28. Qxe4 Qxc5 29. Rac1 Qf8 30. Qh4 Be5 31. Rxc6 Rf7 32. Nd4 Bxd4 33. Qxd4 Rxf3+ 34. Kg1 Rf7 1/2-1/2

[Event "Ruse"]
[Site "Ruse"]
[Date "1987.??.??"]
[Round "?"]
[White "Kremenietsky, Anatoly M"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "2395"]
[BlackElo "2375"]
[PlyCount "121"]
[EventDate "1987.??.??"]
[EventType "tourn"]
[EventRounds "12"]
[EventCountry "BUL"]
[EventCategory "3"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 d6 3. g3 e5 4. Bg2 c6 5. Nc3 Be7 6. 0-0 0-0 7. Qc2 Bg4 8. h3 Bh5 9. e3 Bg6 10. d3 Na6 11. e4 Nd7 12. d4 f5 13. Qe2 f4 14. d5 Bh5 15. Bd2 Nc7 16. b4 c5 17. a3 b6 18. Na4 Qc8 19. bxc5 bxc5 20. Nc3 Rb8 21. Rab1 Rxb1 22. Rxb1 Nb6 23. g4 Be8 24. Bf1 h5 25. g5 Bd7 26. Kh2 g6 27. Qd3 Bd8 28. Qc2 Kg7 29. a4 Bg4 30. Ng1 Bxg5 31. a5 Nba8 32. Qb3 a6 33. Qb7 Qxb7 34. Rxb7 Bd7 35. Nf3 Be7 36. h4 Bc8 37. Rb1 Bd7 38. Bh3 Bg4 39. Ng5 Bxg5 40. hxg5 Kf7 41. Rb7 Bc8 42. Bxc8 Rxc8 43. Na4 Kf8 44. Nb6 Rd8 45. Ra7 Ke8 46. Kg2 Rb8 47. Nxa8 Nxa8 48. Rg7 Kf8 49. Rxg6 Rd8 50. Rh6 Kg7 51. Bc3 Kg8 52. f3 Nc7 53. Be1 Ne8 54. Bh4 Rd7 55. Kh3 Rg7 56. Rxh5 Kf7 57. Rh6 Rg6 58. Kg4 Rg8 59. Bf2 Rg6 60. Rh1 Rg7 61. Kf5 1-0

[Event "Piraeus Memorial"]
[Site "Greece"]
[Date "1986.??.??"]
[Round "6"]
[White "Atanasov, Petko"]
[Black "Gazis, Efstathios"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2375"]
[BlackElo "2280"]
[PlyCount "168"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. 0-0 Bd7 5. Re1 Nf6 6. c3 a6 7. Bf1 Bg4 8. d3 g6 9. Nbd2 Bg7 10. h3 Bd7 11. d4 cxd4 12. cxd4 0-0 13. d5 Ne5 14. Nxe5 dxe5 15. Nc4 Ne8 16. Bd2 a5 17. Bc3 f6 18. Qd2 b6 19. Qe3 Rb8 20. a4 Nd6 21. b4 Qc7 22. Nxd6 Qxd6 23. bxa5 bxa5 24. Bxa5 Ra8 25. Bb6 Bxa4 26. Bc5 Qd7 27. Qa3 Rfe8 28. Rec1 Bf8 29. Bc4 Kg7 30. Qd3 Reb8 31. Ra2 Qe8 32. Rca1 Bd7 33. Ra7 Rxa7 34. Rxa7 Ra8 35. Qa3 Rxa7 36. Qxa7 Kh8 37. Ba6 Qd8 38. Bb6 Qe8 39. Qc7 Bb5 40. Bb7 Qd7 41. Qb8 Kg7 42. Qa8 Qd6 43. Bc6 Bd3 44. Qa5 Qb8 45. f3 h5 46. Kh2 Qc8 47. Bc5 Bf1 48. Kg1 Ba6 49. Qa3 Kf7 50. Kf2 Bc4 51. Qa4 Ba6 52. Be3 Kg7 53. h4 Bd3 54. d6 exd6 55. Qa7+ Kh8 56. Qf7 Bg7 57. Bd5 Kh7 58. g4 Qf8 59. Qd7 Kh8 60. gxh5 gxh5 61. Be6 Ba6 62. Bf5 Bc4 63. Bg6 Kg8 64. Bxh5 Bf7 65. Bxf7+ Qxf7 66. Qxd6 Kh7 67. Qd2 Qh5 68. Kg3 Qg6+ 69. Kh3 Qh5 70. Qg2 Bh6 71. Bxh6 Qxh6 72. Qg3 Qc1 73. h5 Qh1+ 74. Kg4 Qc1 75. Kf5 Qc8+ 76. Kxf6 Qd8+ 77. Kf5 Qd7+ 78. Kg5 Qe7+ 79. Kg4 Kh6 80. f4 Qf7 81. Qh2 Qg8+ 82. Kh4 Qd8+ 83. Kh3 Qd3+ 84. Qg3 Qf1+ 1-0

[Event "Piraeus Memorial"]
[Site "Greece"]
[Date "1986.??.??"]
[Round "5"]
[White "Atanasov, Petko"]
[Black "Pandavos, Panayotis"]
[Result "1-0"]
[ECO "C40"]
[WhiteElo "2375"]
[BlackElo "2285"]
[PlyCount "97"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 d5 3. d4 dxe4 4. Nxe5 Bd6 5. Nc4 Nf6 6. Be2 0-0 7. Bg5 Re8 8. c3 c6 9. Nbd2 Bc7 10. Qc2 Bf5 11. Ne3 Bg6 12. h4 h6 13. h5 Bh7 14. Bh4 Bf4 15. g3 Bxe3 16. fxe3 Nbd7 17. g4 Qc7 18. 0-0-0 Nd5 19. Nf1 f6 20. Bg3 Qa5 21. c4 Nb4 22. Qb3 Nxa2+ 23. Kb1 Nb4 24. Be1 c5 25. dxc5 Nxc5 26. Qxb4 Qc7 27. Bg3 Qc8 28. Rd4 Nd3 29. Qc3 a5 30. Bd6 Ra6 31. Ng3 Rc6 32. Rf1 Rd8 33. c5 b6 34. Bxd3 exd3 35. Nf5 d2 36. Qxd2 bxc5 37. Bxc5 Re8 38. Ba3 Kh8 39. Rd7 Rc4 40. e4 Rcxe4 41. Rxg7 Re1+ 42. Rxe1 Rxe1+ 43. Qxe1 Bxf5+ 44. gxf5 Qxf5+ 45. Ka1 Kxg7 46. Qe7+ Kg8 47. Qf8+ Kh7 48. Qf7+ Kh8 49. Be7 1-0

[Event "Piraeus Memorial"]
[Site "Greece"]
[Date "1986.??.??"]
[Round "1"]
[White "Sklavounos, Panayotis"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2225"]
[BlackElo "2375"]
[PlyCount "74"]
[EventDate "1986.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "GRE"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. e4 c6 2. Nc3 d5 3. Qf3 dxe4 4. Nxe4 Nd7 5. d4 Ngf6 6. Bc4 Nb6 7. Bd3 Nxe4 8. Qxe4 g6 9. Bg5 Be6 10. Ne2 Bg7 11. Qh4 h6 12. Bd2 g5 13. Qg3 Qd5 14. h4 0-0-0 15. a4 Nc4 16. Bc3 Bf6 17. hxg5 hxg5 18. Rxh8 Rxh8 19. 0-0-0 Nd6 20. b3 Ne4 21. Bxe4 Qxe4 22. Ba5 b6 23. Nc3 Qf4+ 24. Qxf4 gxf4 25. Bb4 a5 26. Ba3 Bf5 27. Ne2 Rh2 28. Rg1 f3 29. gxf3 Rxf2 30. Re1 Rxf3 31. Kd1 Bg4 32. Rg1 Rf4 33. c3 Re4 34. Rg2 Bg5 35. Ke1 f5 36. Kf1 Bh3 37. Ng3 Rg4 0-1

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.18"]
[Round "11"]
[White "Atanasov, Petko"]
[Black "Ubilava, Elizbar"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2405"]
[BlackElo "2465"]
[PlyCount "90"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. 0-0 a6 5. Bxd7+ Bxd7 6. Nc3 e6 7. b3 Nf6 8. Bb2 Be7 9. d3 0-0 10. Ne2 Bc6 11. Re1 b5 12. Nf4 Qc7 13. Qd2 a5 14. h3 a4 15. a3 axb3 16. cxb3 Qb7 17. Nh2 c4 18. Ng4 Nxg4 19. hxg4 e5 20. Nh5 cxb3 21. Ng3 Bd7 22. d4 Bxg4 23. dxe5 dxe5 24. Bxe5 Be6 25. Nf5 f6 26. Bb2 Bc5 27. Qf4 Rad8 28. Rec1 Qa7 29. Rc3 Bxf2+ 30. Kh1 Bxf5 31. Qxf5 Bd4 32. Rxb3 Bxb2 33. Rxb2 Qd4 34. Rab1 Rfe8 35. Rb4 Qe3 36. Qxb5 Re5 37. Qc4+ Kh8 38. Rb5 Rxe4 39. Rb8 Qe1+ 40. Rxe1 Rxe1+ 41. Kh2 Rxb8 42. Qc7 Ra8 43. Qc6 Ree8 44. a4 Rad8 45. Qb6 Rd5 0-1

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.16"]
[Round "10"]
[White "Semkov, Semko"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "E60"]
[WhiteElo "2410"]
[BlackElo "2405"]
[PlyCount "117"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nf3 d6 6. 0-0 Nc6 7. d5 Na5 8. Nbd2 c5 9. Ne1 a6 10. Rb1 b5 11. cxb5 axb5 12. b4 cxb4 13. Rxb4 Bd7 14. Nc2 Qc7 15. Nd4 Rfb8 16. a3 Ra7 17. e3 Qc8 18. Qe2 Rc7 19. Bb2 Rc5 20. e4 Ng4 21. Bh3 Ne5 22. Bxd7 Qxd7 23. Kg2 Nec4 24. Nxc4 Rxc4 25. Nf3 Bxb2 26. Qxb2 Rbc8 27. Nd4 Rxb4 28. axb4 Nc4 29. Qa1 Qg4 30. Re1 Ne5 31. h3 Qd7 32. Rc1 Rc4 33. Rxc4 bxc4 34. b5 Qc7 35. Nc6 Nd3 36. Qd4 Ne1+ 37. Kf1 Nf3 38. Qc3 Ne5 39. f4 Nd3 40. Qxc4 Nc5 41. e5 f5 42. Qb4 Kg7 43. e6 Kh6 44. b6 Qc8 45. Qb5 Qh8 46. Ne5 dxe5 47. Qxc5 exf4 48. Qc1 Qa8 49. Qxf4+ g5 50. Qb4 Qxd5 51. b7 Qf3+ 52. Ke1 Qxg3+ 53. Kd2 Qf2+ 54. Kd3 Qf1+ 55. Kd4 Qf4+ 56. Kc5 Qc7+ 57. Kd5 Qd8+ 58. Kc6 Qb8 59. Qxe7 1-0

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.15"]
[Round "9"]
[White "Atanasov, Petko"]
[Black "Lalic, Bogdan"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2405"]
[BlackElo "2440"]
[PlyCount "123"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Nc6 6. Nb5 Bxd2+ 7. Qxd2 Nxd4 8. Nxd4 cxd4 9. Nf3 Ne7 10. Qxd4 0-0 11. Bd3 Nc6 12. Qg4 f5 13. Qf4 Qb6 14. 0-0-0 Bd7 15. c3 Rac8 16. Kb1 Qxf2 17. Rhf1 Qc5 18. g4 Ne7 19. Nd4 Ng6 20. Qg3 Rce8 21. Rde1 fxg4 22. Bxg6 hxg6 23. Qxg4 Qc4 24. Qh3 b5 25. Rg1 Rf2 26. Rxg6 Ref8 27. Rxg7+ Kxg7 28. Qg3+ Kf7 29. Qxf2+ Ke8 30. Qe2 Qxe2 31. Rxe2 Rf4 32. b4 Ke7 33. Kc2 Be8 34. Kd2 Rh4 35. Rg2 Rh3 36. Rg7+ Bf7 37. Nxb5 Rxh2+ 38. Ke3 Kf8 39. Rg1 Rxa2 40. Nd6 Be8 41. Rh1 Bg6 42. Rh8+ Ke7 43. Rg8 Bh5 44. Rg5 Bd1 45. Rg7+ Kd8 46. Kd4 Rd2+ 47. Kc5 d4 48. Nb7+ Ke8 49. cxd4 Rc2+ 50. Kd6 Rd2 51. Kxe6 Bb3+ 52. Kf5 Rxd4 53. b5 Bc2+ 54. Kg5 Kf8 55. Rc7 Bb3 56. Nd6 Ra4 57. Kf6 Rf4+ 58. Nf5 Kg8 59. e6 Re4 60. Nh6+ Kh8 61. Nf7+ Kg8 62. Rc8+ 1-0

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.14"]
[Round "8"]
[White "Donchev, Dimitar I"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2450"]
[BlackElo "2405"]
[PlyCount "47"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 0-0 5. Nc3 d6 6. Nf3 Nc6 7. 0-0 Bg4 8. b3 Nd7 9. Be3 e5 10. dxe5 Bxf3 11. exf3 dxe5 12. Rc1 Nd4 13. f4 c6 14. fxe5 Nf5 15. e6 Nxe3 16. fxe3 fxe6 17. Ne4 Rxf1+ 18. Bxf1 Ne5 19. Qxd8+ Rxd8 20. Be2 Bh6 21. Rc3 Kf7 22. Kg2 Ke7 23. g4 Nf7 24. h4 1/2-1/2

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.13"]
[Round "7"]
[White "Atanasov, Petko"]
[Black "Inkiov, Ventzislav"]
[Result "0-1"]
[ECO "B65"]
[WhiteElo "2405"]
[BlackElo "2480"]
[PlyCount "62"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. 0-0-0 0-0 9. f4 Nxd4 10. Qxd4 Qa5 11. Kb1 h6 12. Bh4 e5 13. Qf2 exf4 14. Nd5 Nxd5 15. Rxd5 Bxh4 16. Qxh4 Qb4 17. Bd3 Be6 18. Rb5 Qd2 19. Rf1 Qxg2 20. Qxf4 b6 21. e5 d5 22. a4 Rac8 23. Qe3 Rxc2 24. a5 bxa5 25. Qxa7 Rcc8 26. Rg1 Qxh2 27. Qd4 Rb8 28. Rxb8 Rxb8 29. Bc2 a4 30. Qa7 Qxe5 31. b3 Bf5 0-1

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.11"]
[Round "6"]
[White "Diaz Diaz, Joaquin Carlos"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "B17"]
[BlackElo "2405"]
[PlyCount "24"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 Nd5 7. N1f3 h6 8. Ne4 N7f6 9. Ng3 Bg4 10. Be2 e6 11. 0-0 Bd6 12. Ne5 0-0 1-0

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.10"]
[Round "5"]
[White "Atanasov, Petko"]
[Black "Spiridonov, Nikola"]
[Result "1/2-1/2"]
[ECO "B44"]
[WhiteElo "2405"]
[BlackElo "2400"]
[PlyCount "69"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Be3 Nf6 6. Bd3 d5 7. exd5 Nxd5 8. Nxc6 bxc6 9. Bd2 Rb8 10. 0-0 Rxb2 11. Nc3 Be7 12. Qg4 0-0 13. Bh6 Bf6 14. Ne4 e5 15. Qg3 Bf5 16. Nxf6+ Qxf6 17. Bxf5 Qxh6 18. Qxe5 Qf6 19. Qxf6 Nxf6 20. Rfe1 g6 21. Bd3 Rfb8 22. g3 Kf8 23. Kf1 Nd5 24. a3 Re8 25. Rxe8+ Kxe8 26. Ke2 Ke7 27. Kd2 Kd6 28. Bc4 Rb8 29. Re1 h5 30. Bb3 a5 31. Re4 f6 32. Kd3 g5 33. Ra4 Ra8 34. Rd4 Rb8 35. Ra4 1/2-1/2

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.09"]
[Round "4"]
[White "Knaak, Rainer"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2530"]
[BlackElo "2405"]
[PlyCount "75"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 0-0 7. Bd3 c6 8. Qc2 Nbd7 9. Nf3 Re8 10. 0-0 Nf8 11. a3 h6 12. Bf4 Bd6 13. Bxd6 Qxd6 14. b4 Ne6 15. Ne5 Re7 16. Ne2 Nf8 17. Ng3 g6 18. f4 Bd7 19. Qe2 a5 20. Rab1 axb4 21. axb4 Ra4 22. Qf3 Rxb4 23. Rxb4 Qxb4 24. f5 g5 25. Nh5 N8h7 26. h4 Nxh5 27. Qxh5 f6 28. Ng4 Qd2 29. Ra1 Be8 30. Ra8 Kg7 31. Qxh6+ Kh8 32. Bf1 gxh4 33. Qg6 h3 34. Rxe8+ Rxe8 35. Qxe8+ Kg7 36. Qe7+ Kh8 37. Nh6 hxg2 38. Qe8+ 1-0

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.08"]
[Round "3"]
[White "Atanasov, Petko"]
[Black "Grigorov, Jordan N"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2405"]
[BlackElo "2435"]
[PlyCount "102"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 g6 5. 0-0 Bg7 6. Re1 0-0 7. e5 Ne8 8. d3 Nc7 9. Bxc6 dxc6 10. h3 Ne6 11. Ne4 b6 12. a4 a5 13. Bd2 Nd4 14. Bf4 Be6 15. Nfg5 Bd5 16. Rc1 f6 17. exf6 exf6 18. c4 fxg5 19. Bxg5 Qd7 20. cxd5 cxd5 21. Nc3 Qf7 22. Be3 Nc6 23. Ne2 Nb4 24. d4 c4 25. Rf1 Rac8 26. Nc3 Qf5 27. Nb5 Rc6 28. Rc3 Re8 29. Qd2 Nd3 30. Rd1 Bf8 31. Qe2 Rf6 32. Rxc4 Nxb2 33. Qxb2 dxc4 34. Qa2 Rf7 35. Qxc4 Rc8 36. Qf1 Qd5 37. Rc1 Rxc1 38. Qxc1 Qb3 39. Qc6 Qxa4 40. d5 Qa1+ 41. Kh2 Qe5+ 42. g3 Bc5 43. Bxc5 bxc5 44. Qxc5 Kg7 45. f4 Qe2+ 46. Kg1 Re7 47. Nd4 Qe1+ 48. Kg2 Qd2+ 49. Kf3 Re3+ 50. Kg4 Qd1+ 51. Kh4 Qh5# 0-1

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.07"]
[Round "2"]
[White "Mnatsakanian, Eduard A"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "2440"]
[BlackElo "2405"]
[PlyCount "137"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bc4 Nd5 8. 0-0 g6 9. Re1 Bg7 10. Bg5 Be6 11. Qd2 0-0 12. Bf6 Qd6 13. Re4 Rfe8 14. Rae1 Bf5 15. Bxg7 Kxg7 16. Bxd5 cxd5 17. R4e3 Rac8 18. c3 Rc7 19. Ne5 h5 20. h3 Rh8 21. Qe2 f6 22. Nd3 Kf7 23. Qd2 b6 24. Nf4 g5 25. Nd3 h4 26. Qe2 Kg6 27. f3 Rb8 28. Nf2 Rbb7 29. Nd3 Rb8 30. Rf1 Rg8 31. f4 Kh6 32. fxg5+ Rxg5 33. Rf4 Kg7 34. Rxh4 Kf7 35. Rh5 Rxh5 36. Qxh5+ Bg6 37. Qh6 Rc8 38. Nf4 Rg8 39. Rg3 Be4 40. Qh5+ Kf8 41. Qh6+ Kf7 42. Qh5+ Kf8 43. Rxg8+ Kxg8 44. Qe8+ Kg7 45. g3 Bf5 46. Kg2 Qd7 47. Qxd7 Bxd7 48. Kf3 e6 49. g4 Kf7 50. h4 Bc6 51. Nd3 Bb5 52. Ke3 a5 53. b3 Bd7 54. Kf4 Bb5 55. Nf2 Bf1 56. g5 b5 57. Ng4 fxg5+ 58. hxg5 a4 59. bxa4 bxa4 60. a3 Be2 61. Ne3 Kg6 62. Ke5 Kxg5 63. Kxe6 Kf4 64. Nxd5+ Ke4 65. Nb4 Ke3 66. Kd5 Kd2 67. c4 Kc3 68. c5 Kb3 69. c6 1-0

[Event "Varna-24"]
[Site "Varna"]
[Date "1985.05.06"]
[Round "1"]
[White "Tringov, Georgi Petrov"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "B10"]
[WhiteElo "2460"]
[BlackElo "2405"]
[PlyCount "62"]
[EventDate "1985.05.06"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6 5. Bb5+ Nbd7 6. Nc3 a6 7. Qa4 g6 8. Nf3 Bg7 9. d4 0-0 10. Bxd7 Bxd7 11. Qb3 b5 12. 0-0 a5 13. a3 Qb6 14. Ne5 b4 15. Be3 Rab8 16. axb4 axb4 17. Nxd7 Nxd7 18. Na4 Qd6 19. Nc5 Nb6 20. Ra5 Qxd5 21. Qxd5 Nxd5 22. Nd7 Nxe3 23. fxe3 Ra8 24. Rb5 Rfd8 25. Nc5 Rdc8 26. Nd3 Rc2 27. Rxb4 Rd2 28. Rb3 Rc8 29. Nc5 f5 30. Rf2 Rd1+ 31. Rf1 Rd8 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "10"]
[White "Armas, Jules"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "C53"]
[WhiteElo "2395"]
[BlackElo "2420"]
[PlyCount "96"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. 0-0 Nf6 6. d4 Bb6 7. Re1 d6 8. h3 h6 9. Qd3 0-0 10. Nbd2 Nh5 11. Nf1 Qf6 12. Ne3 Ne7 13. Nh2 exd4 14. Neg4 Qg6 15. cxd4 Nf6 16. Nxf6+ Qxf6 17. Nf3 Qg6 18. Nh4 Qh5 19. Nf5 Bxf5 20. exf5 Nc6 21. Be3 Qh4 22. Rad1 Rad8 23. a3 d5 24. Ba2 Ne7 25. Bb1 Nc8 26. Kh2 Nd6 27. g3 Qh5 28. Bf4 Ne4 29. Kg2 Rfe8 30. Qb3 c6 31. h4 Nf6 32. f3 Nh7 33. Kh3 f6 34. Qd3 Nf8 35. g4 Qf7 36. g5 hxg5 37. hxg5 fxg5 38. Be5 Bc7 39. Kg4 c5 40. Qd2 cxd4 41. Qxd4 Bxe5 42. Rxe5 Nd7 43. Rxe8+ Rxe8 44. Ba2 Nf6+ 45. Kg3 Qc7+ 46. Kh3 Re7 47. Bxd5+ Kh8 48. Rh1 Nxd5 0-1

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "9"]
[White "Atanasov, Petko"]
[Black "Bitman, Alexander R"]
[Result "0-1"]
[ECO "B07"]
[WhiteElo "2420"]
[BlackElo "2365"]
[PlyCount "102"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 g6 3. e4 d6 4. Bg5 Bg7 5. Qd2 c6 6. f4 b5 7. Bd3 0-0 8. Nf3 Bg4 9. e5 b4 10. Ne2 Bxf3 11. gxf3 Nd5 12. Bh4 Bh6 13. Be4 Nxf4 14. Nxf4 dxe5 15. Qxb4 exf4 16. 0-0-0 Na6 17. Qc4 Nc7 18. Bxc6 Rc8 19. d5 Ne8 20. Rhe1 Nd6 21. Qe2 f6 22. Qe6+ Kh8 23. Bf2 Rc7 24. Bc5 Bg7 25. Bb4 f5 26. Rd3 g5 27. b3 Rf6 28. Qe2 Rh6 29. Ba5 Bf6 30. c4 Qb8 31. c5 Nf7 32. Rd2 Rc8 33. Rc2 Rg8 34. Bd7 g4 35. fxg4 f3 36. Qxf3 Ne5 37. Qxf5 Rg5 38. Qe6 Nd3+ 39. Kd1 Nxe1 40. Bxe1 Qf4 41. Bg3 Qf3+ 42. Qe2 Rxd5+ 43. Rd2 Qh1+ 44. Be1 Rxd2+ 45. Qxd2 Rxh2 46. Qd3 Rxa2 47. Be6 Ra1+ 48. Kc2 Rc1+ 49. Kxc1 Qxe1+ 50. Kc2 Qxe6 51. Qf3 Kg7 0-1

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "7"]
[White "Atanasov, Petko"]
[Black "Grigorov, Jordan N"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2420"]
[BlackElo "2410"]
[PlyCount "19"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 0-0 6. Nd5 Bc5 7. a3 a5 8. Ng5 g6 9. h4 d6 10. b3 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "14"]
[White "Atanasov, Petko"]
[Black "Gunev, Zlatan"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2420"]
[BlackElo "2275"]
[PlyCount "85"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Bf4 Nf6 5. e3 c6 6. Nf3 0-0 7. Qc2 Nbd7 8. a3 Re8 9. Bd3 Nf8 10. c5 Nh5 11. Bg3 f5 12. Be5 Nf6 13. h3 Ne4 14. Ne2 Bf6 15. 0-0 Nd7 16. b4 Qe7 17. Qb2 g6 18. Bxf6 Nexf6 19. Ne5 Nxe5 20. dxe5 Nd7 21. Rfc1 a6 22. f4 Nf8 23. Nd4 Bd7 24. a4 g5 25. Qf2 Ng6 26. Kh2 Kh8 27. g3 Rg8 28. Nf3 h6 29. Rg1 a5 30. Qb2 Bc8 31. Nd4 axb4 32. Qxb4 h5 33. Nf3 g4 34. Ng5 Nxe5 35. Qd4 Rxg5 36. fxg5 Qg7 37. Be2 Nd7 38. h4 Kg8 39. a5 Qe7 40. Rgc1 e5 41. Qc3 f4 42. exf4 exf4 43. Re1 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "13"]
[White "Atanasov, Petko"]
[Black "Komljenovic, Davorin"]
[Result "1/2-1/2"]
[ECO "A57"]
[WhiteElo "2420"]
[BlackElo "2395"]
[PlyCount "20"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Bg5 Ne4 5. Bf4 g5 6. Be5 f6 7. e3 Qa5+ 8. Bc3 b4 9. Bd2 Bg7 10. Bd3 f5 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "3"]
[White "Atanasov, Petko"]
[Black "Nikolov, Todor"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2420"]
[PlyCount "45"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d6 3. e4 Nbd7 4. g4 e5 5. g5 exd4 6. Qxd4 Ng4 7. h3 Nge5 8. Be3 Nc6 9. Qd2 Nb6 10. 0-0-0 g6 11. f4 Bg7 12. Nf3 Be6 13. Nd4 Bd7 14. h4 h5 15. Nxc6 bxc6 16. Bd4 0-0 17. Bxg7 Kxg7 18. Qd4+ Kh7 19. f5 Qe7 20. f6 Qe8 21. Be2 c5 22. Qe3 Qe5 23. Nd5 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "1"]
[White "Atanasov, Petko"]
[Black "Orev, Petar"]
[Result "1/2-1/2"]
[ECO "A32"]
[WhiteElo "2420"]
[BlackElo "2325"]
[PlyCount "24"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 e6 4. Nc3 cxd4 5. Nxd4 Bb4 6. Qb3 Na6 7. a3 Be7 8. e3 0-0 9. Be2 Nc5 10. Qc2 d5 11. 0-0 e5 12. Nf3 e4 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "11"]
[White "Atanasov, Petko"]
[Black "Spiridonov, Nikola"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2420"]
[BlackElo "2445"]
[PlyCount "28"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. g3 b6 4. Bg2 Bb7 5. Nc3 g6 6. 0-0 Bg7 7. d4 Ne4 8. Nxe4 Bxe4 9. Be3 d6 10. Qd2 Nc6 11. d5 Bxf3 12. Bxf3 Ne5 13. Rac1 0-0 14. Bg2 a6 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "5"]
[White "Atanasov, Petko"]
[Black "Sydor, Andrzej"]
[Result "1/2-1/2"]
[ECO "D01"]
[WhiteElo "2420"]
[BlackElo "2395"]
[PlyCount "66"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. e3 c6 5. f4 b5 6. Bd3 Nb6 7. Nf3 Nc4 8. Qc1 Qb6 9. 0-0 e6 10. f5 Be7 11. e4 e5 12. exd5 exd4 13. Ne4 cxd5 14. Nxf6+ gxf6 15. Bh6 Bb7 16. Re1 Kd7 17. b3 Nd6 18. a4 a6 19. a5 Qc5 20. Qd2 Rae8 21. Qf2 Bd8 22. Bd2 Ne4 23. Bxe4 dxe4 24. Nxd4 e3 25. Bxe3 Rhg8 26. Ne6 Qc6 27. Nc5+ Kc8 28. Nxb7 Kxb7 29. c4 bxc4 30. bxc4 Re4 31. Bb6 Bxb6 32. axb6 Rge8 33. h3 Rxe1+ 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "2"]
[White "Cserna, Laszlo"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E92"]
[BlackElo "2420"]
[PlyCount "120"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 0-0 6. Nf3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 Re8 10. Nd5 Nxd5 11. cxd5 f5 12. Nd2 h6 13. Be3 c6 14. Bc4 Kh7 15. f3 cxd5 16. Bxd5 Nc6 17. Bxc6 bxc6 18. 0-0-0 Be6 19. Kb1 Red8 20. Nb3 Bc4 21. Kc2 Be2 22. Rxd8 Rxd8 23. Nc1 Bc4 24. b3 Ba6 25. Bxa7 Kg8 26. g3 Bf8 27. Bb6 Rd7 28. exf5 gxf5 29. Re1 Bb4 30. Rd1 Rxd1 31. Kxd1 Kf7 32. Be3 h5 33. Ne2 c5 34. Bd2 Ke6 35. a4 Kd5 36. Bxb4 cxb4 37. Kd2 Kc5 38. f4 e4 39. Ke3 Bb7 40. Nd4 Bd5 41. a5 Bg8 42. h3 Bd5 43. a6 Kb6 44. Nc2 Bxb3 45. Nxb4 Be6 46. Kd4 Bb3 47. Ke5 e3 48. a7 e2 49. Nd3 Kxa7 50. Ne1 Kb6 51. Kxf5 Kc5 52. Ke4 Bd5+ 53. Ke5 Kc4 54. f5 Bc6 55. f6 Be8 56. Ke6 Kd4 57. f7 Bxf7+ 58. Kxf7 Ke3 59. Kg6 Kf2 60. Nc2 Kxg3 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "15"]
[White "Donev, Ivo Hristov"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2250"]
[BlackElo "2420"]
[PlyCount "37"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. Nf3 e5 5. Bc4 Be7 6. 0-0 0-0 7. a4 c6 8. dxe5 dxe5 9. Qe2 Qc7 10. a5 Nc5 11. Be3 Bg4 12. h3 Bh5 13. Bg5 Ne8 14. g4 Bg6 15. b4 Bxg5 16. Nxg5 Qe7 17. bxc5 Qxg5 18. Rfb1 Qe7 19. Qe3 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "4"]
[White "Ilievski, Dimitar"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C04"]
[BlackElo "2420"]
[PlyCount "47"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 a5 7. a4 Be7 8. c3 b6 9. Bd3 Ncb8 10. Bf4 c5 11. Bb5 Ba6 12. h4 Bxb5 13. axb5 c4 14. Nbd2 Nf8 15. b3 cxb3 16. Qxb3 Ng6 17. Bg3 h5 18. c4 dxc4 19. Nxc4 Qd5 20. 0-0 0-0 21. Qa4 Nd7 22. Rfd1 Rfd8 23. Ne3 Qe4 24. Nd2 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "8"]
[White "Lalev, Dimitar"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "A65"]
[WhiteElo "2420"]
[BlackElo "2420"]
[PlyCount "53"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 a6 10. a4 Re8 11. Nge2 Nbd7 12. Nc1 h6 13. Be3 Nh7 14. Nd3 Rb8 15. Nf2 h5 16. Be2 Ne5 17. 0-0 f5 18. Rab1 b5 19. axb5 axb5 20. b4 c4 21. Ra1 Qf6 22. Ra3 Nf7 23. f4 Re7 24. Rc1 fxe4 25. Nfxe4 Qf5 26. Ng3 Qf6 27. Nge4 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "6"]
[White "Lazarov, Alexander"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C54"]
[BlackElo "2420"]
[PlyCount "23"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. 0-0 d6 6. d3 Nf6 7. h3 Bb6 8. Nbd2 0-0 9. Re1 h6 10. Nf1 Be6 11. Bxe6 fxe6 12. Be3 1/2-1/2

[Event "Kamen Piskov Memorial-04"]
[Site "Ruse"]
[Date "1984.06.??"]
[Round "12"]
[White "Orso, Miklos"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2390"]
[BlackElo "2420"]
[PlyCount "19"]
[EventDate "1984.06.??"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 b6 4. Nbd2 Bb7 5. e3 Bg7 6. Bd3 c5 7. c3 d6 8. 0-0 0-0 9. Qc2 Nc6 10. a3 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "10"]
[White "Atanasov, Petko"]
[Black "Arnaudov, Petar"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2400"]
[BlackElo "2345"]
[PlyCount "91"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 g6 2. Nf3 Bg7 3. e4 d6 4. Bc4 c6 5. Bb3 Nf6 6. Qe2 0-0 7. 0-0 a5 8. a4 Na6 9. h3 Nc7 10. Rd1 b5 11. e5 Nfe8 12. Nbd2 d5 13. Nf1 Ba6 14. Qe1 b4 15. c3 Bxf1 16. Qxf1 Ne6 17. cxb4 axb4 18. Be3 Qb6 19. Qd3 N8c7 20. Rdc1 Rfc8 21. h4 h5 22. Rc2 Ne8 23. Rac1 Qb7 24. Ne1 Bf8 25. f3 N6g7 26. g4 e6 27. Ng2 c5 28. dxc5 d4 29. c6 Rxc6 30. Rxc6 dxe3 31. Qxe3 Be7 32. Bd1 Bd8 33. Qe4 Qa7+ 34. Kh2 Rb8 35. Rc8 Kh7 36. Rxb8 Qxb8 37. f4 hxg4 38. Bxg4 Bb6 39. h5 Nf5 40. hxg6+ fxg6 41. Bxf5 gxf5 42. Qc6 Ng7 43. Qd7 Qa8 44. Kg3 Kg6 45. Rh1 Bd8 46. Rh8 1-0

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "4"]
[White "Atanasov, Petko"]
[Black "Grkov, Dimitar"]
[Result "1-0"]
[ECO "C41"]
[WhiteElo "2400"]
[PlyCount "79"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nc3 d6 3. e4 Nbd7 4. Nf3 e5 5. Bg5 Be7 6. h3 c6 7. Qd2 h6 8. Be3 b5 9. a3 a6 10. Be2 Qc7 11. 0-0 g5 12. b4 Rg8 13. a4 Bb7 14. Nh2 h5 15. f3 exd4 16. Bxd4 c5 17. Bf2 cxb4 18. Na2 d5 19. Nxb4 Bd6 20. exd5 Bxh2+ 21. Kh1 Bf4 22. Qd3 Qd6 23. Nc6 Qxd5 24. axb5 Qxd3 25. Bxd3 axb5 26. Rxa8+ Bxa8 27. Re1+ Kf8 28. Ne7 Rh8 29. Bxb5 g4 30. Bd4 Rh6 31. Nf5 Rg6 32. fxg4 hxg4 33. h4 Bd5 34. Ne7 Be6 35. Nxg6+ fxg6 36. Rxe6 Kf7 37. Bc4 Kg7 38. Bb3 Bg3 39. Re7+ Kh6 40. Be6 1-0

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "6"]
[White "Atanasov, Petko"]
[Black "Ilievski, Dimitar"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2400"]
[PlyCount "97"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. e3 Bg7 5. d4 d6 6. Be2 Nh6 7. dxe5 Nxe5 8. Nxe5 dxe5 9. Qxd8+ Kxd8 10. Bd2 c6 11. 0-0-0 Kc7 12. h3 f5 13. Na4 Re8 14. Bc3 b6 15. c5 Be6 16. b3 Nf7 17. h4 Bf8 18. cxb6+ axb6 19. Kb1 Ra7 20. Bb2 Rea8 21. Rd2 b5 22. Nc3 Kb6 23. Rc1 Rd7 24. Rdc2 Nd8 25. g3 Ba3 26. Bf3 e4 27. Be2 Bxb2 28. Kxb2 Rd6 29. a4 bxa4 30. Nxa4+ Kc7 31. Nc5 Bf7 32. Rd1 Rxd1 33. Bxd1 Nb7 34. Nxb7 Kxb7 35. Rd2 Kc7 36. Kc3 c5 37. Be2 Rb8 38. Bc4 Bxc4 39. Kxc4 Kc6 40. Ra2 Rb4+ 41. Kc3 h5 42. Ra4 Rb6 43. Kc4 Kd6 44. Ra8 Rb4+ 45. Kc3 Rb6 46. Rd8+ Kc6 47. Rg8 Kd5 48. Rg7 Ra6 49. Rd7+ 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "13"]
[White "Atanasov, Petko"]
[Black "Pantaleev, Dimitar Dimitrov"]
[Result "1/2-1/2"]
[ECO "D40"]
[WhiteElo "2400"]
[BlackElo "2355"]
[PlyCount "22"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. e3 0-0 6. Bd3 c5 7. 0-0 cxd4 8. Nxd4 Nc6 9. Nf3 dxc4 10. Bxc4 Qxd1 11. Rxd1 a6 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "2"]
[White "Atanasov, Petko"]
[Black "Peev, Peicho Chonev"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2400"]
[BlackElo "2410"]
[PlyCount "25"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 Nf6 4. c4 0-0 5. Nc3 d6 6. d4 Nc6 7. 0-0 Bg4 8. d5 Ne5 9. Nd2 c5 10. h3 Bd7 11. e4 a6 12. a4 Rb8 13. Re1 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "8"]
[White "Atanasov, Petko"]
[Black "Szilagyi, Peter"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2400"]
[BlackElo "2405"]
[PlyCount "30"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. c3 Nbd7 5. h3 e6 6. e3 Be7 7. Nbd2 b6 8. Bd3 Bb7 9. Ne5 Nxe5 10. Bxe5 0-0 11. 0-0 a5 12. a4 Qc8 13. Qe2 Ba6 14. Bxa6 Qxa6 15. Qxa6 Rxa6 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "3"]
[White "Bitman, Alexander R"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2370"]
[BlackElo "2400"]
[PlyCount "85"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. 0-0 b6 8. Re1 Bb7 9. c3 Qc7 10. a3 h6 11. b4 dxe4 12. dxe4 g5 13. e5 Nd7 14. Nc4 0-0-0 15. Nd6+ Bxd6 16. exd6 Qb8 17. Be3 Nce5 18. Nxe5 Nxe5 19. f4 Bxg2 20. fxe5 Ba8 21. Kf2 Qb7 22. Rf1 f6 23. exf6 Rxd6 24. Qe2 Rf8 25. Ke1 e5 26. Rd1 Rxd1+ 27. Kxd1 Qd5+ 28. Ke1 c4 29. Qg4+ Kc7 30. Qf5 Qe4 31. Qxe4 Bxe4 32. h4 Bd3 33. Rf2 gxh4 34. gxh4 Kd7 35. Bxh6 Rf7 36. Bg7 Ke6 37. Kd2 Bh7 38. Ke3 Bg6 39. Rg2 Bh7 40. Rd2 Bd3 41. h5 Rd7 42. h6 Kf7 43. h7 1-0

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "1"]
[White "Cserna, Laszlo"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "A52"]
[BlackElo "2400"]
[PlyCount "78"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 g5 5. Bg3 Bg7 6. Nf3 Nc6 7. h4 Ncxe5 8. Nxe5 Nxe5 9. e3 Ng6 10. hxg5 d6 11. Nc3 Qxg5 12. Rh5 Qd8 13. Be2 Be6 14. Qc2 Qe7 15. 0-0-0 Be5 16. Bxe5 Nxe5 17. c5 f6 18. Rdh1 dxc5 19. Rxh7 Rxh7 20. Rxh7 Nf7 21. Qe4 c6 22. Bg4 Kd7 23. Qg6 Rf8 24. Ne4 Kc7 25. Qxf6 Qxf6 26. Nxf6 Bxa2 27. f3 Rh8 28. Rxh8 Nxh8 29. Bh5 Bf7 30. Bxf7 Nxf7 31. f4 b5 32. g4 Kd6 33. g5 Ke6 34. e4 Nd6 35. b3 a5 36. Kb2 c4 37. e5 Nf5 38. bxc4 b4 39. Ne4 Nd4 0-1

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "12"]
[White "Donev, Ivo Hristov"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "C19"]
[BlackElo "2400"]
[PlyCount "86"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. Nc3 d5 3. d4 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Nf3 Nbc6 8. a4 Qa5 9. Bd2 c4 10. Be2 Bd7 11. 0-0 0-0-0 12. Qe1 f6 13. Bc1 Nf5 14. g4 Nfe7 15. Ba3 Ng6 16. Bb4 Nxb4 17. cxb4 Qc7 18. Qc3 Rdf8 19. Rae1 h5 20. g5 fxe5 21. Nxe5 Nxe5 22. dxe5 Rf4 23. f3 h4 24. Kh1 Kb8 25. b5 Qc5 26. h3 Be8 27. Qd2 Rhf8 28. Kg2 d4 29. Bd1 Bg6 30. c3 d3 31. Qe3 Qxe3 32. Rxe3 R8f5 33. Kf2 Rxg5 34. Rg1 Rxg1 35. Kxg1 Kc7 36. a5 b6 37. a6 Be8 38. Ba4 d2 39. Kf2 Bxb5 40. Bc2 Bxa6 41. Ke2 Bb7 42. Be4 Bxe4 43. fxe4 Rf2+ 0-1

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "11"]
[White "Gunev, Zlatan"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E67"]
[BlackElo "2400"]
[PlyCount "24"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 0-0 5. d4 d6 6. Nf3 Nbd7 7. 0-0 a6 8. b3 Rb8 9. Rb1 c5 10. dxc5 Nxc5 11. Nd4 Bd7 12. Bb2 Ne6 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "5"]
[White "Kirov, Nino"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "2425"]
[BlackElo "2400"]
[PlyCount "23"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 g6 2. d4 Bg7 3. c3 d6 4. e4 Nd7 5. Bd3 e5 6. dxe5 Nxe5 7. Nxe5 dxe5 8. Bb5+ Bd7 9. Qxd7+ Qxd7 10. Bxd7+ Kxd7 11. Na3 Nf6 12. f3 1/2-1/2

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "9"]
[White "Kovacevic, Slobodan"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "C02"]
[BlackElo "2400"]
[PlyCount "64"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 f5 6. exf6 Nxf6 7. Bd3 Bd6 8. 0-0 0-0 9. dxc5 Bxc5 10. b4 Bd6 11. b5 Ne7 12. Qe2 Qc7 13. Re1 Ng6 14. h3 Bd7 15. a4 Rae8 16. Bxg6 hxg6 17. Qd3 e5 18. Qxg6 Ne4 19. Rf1 Re6 20. Qh5 Be8 21. Qg4 Rg6 22. Ng5 Bc5 23. Ra2 Qb6 24. Qh4 Rh6 25. Qg4 Bxf2+ 26. Rfxf2 Nxf2 27. Rxf2 Qxf2+ 28. Kh2 Qc2 29. Ba3 Rf5 30. Nd2 Bh5 31. Qg3 Qxd2 32. h4 Qf4 0-1

[Event "Kamen Piskov Memorial-03"]
[Site "Ruse"]
[Date "1983.06.??"]
[Round "7"]
[White "Lalev, Dimitar"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2385"]
[BlackElo "2400"]
[PlyCount "89"]
[EventDate "1983.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 e6 2. c4 Nf6 3. Nc3 d5 4. cxd5 exd5 5. Nf3 c6 6. Bg5 Be7 7. e3 Nbd7 8. Bd3 0-0 9. Qc2 h6 10. Bh4 Nh5 11. Bg3 Re8 12. a3 Nxg3 13. hxg3 Bf6 14. 0-0 Nf8 15. b4 Bg4 16. Rac1 a6 17. Na4 g6 18. Nc5 Qe7 19. Rfe1 Qc7 20. a4 Re7 21. b5 axb5 22. axb5 cxb5 23. Qb3 Qd6 24. Bxb5 Bxf3 25. gxf3 Ne6 26. f4 h5 27. Bf1 b6 28. Nd3 h4 29. gxh4 Bxd4 30. f5 Nc5 31. Nxc5 Bxc5 32. Bg2 Rd8 33. Rcd1 Re5 34. fxg6 Qxg6 35. Kf1 Qh5 36. Rd3 Qxh4 37. Rxd5 Rdxd5 38. Bxd5 Rf5 39. Re2 Bxe3 40. Qxe3 Rxd5 41. Qf3 Rd1+ 42. Re1 Qc4+ 43. Qe2 Rxe1+ 44. Kxe1 Qxe2+ 45. Kxe2 0-1

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "6"]
[White "Atanasov, Petko"]
[Black "Groszpeter, Attila"]
[Result "1/2-1/2"]
[ECO "B95"]
[WhiteElo "2400"]
[BlackElo "2505"]
[PlyCount "104"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qd2 Be7 8. Be2 b5 9. a3 Bb7 10. f3 Nbd7 11. 0-0 Rc8 12. Be3 0-0 13. a4 b4 14. Na2 d5 15. Nxb4 dxe4 16. a5 exf3 17. gxf3 Ne5 18. b3 Ng6 19. c4 Qc7 20. Nd3 Rfd8 21. Qe1 Nh5 22. f4 Rxd4 23. Bxd4 Nhxf4 24. Nxf4 Nxf4 25. Bf3 Nh3+ 26. Kg2 Ng5 27. Qg3 Qxg3+ 28. Kxg3 Bd6+ 29. Kg2 Nxf3 30. Rxf3 g5 31. Kf2 Bxf3 32. Kxf3 f5 33. Rd1 Kf7 34. Bb6 Ke7 35. c5 g4+ 36. Kg2 Rxc5 37. Bxc5 Bxc5 38. Rb1 Bb4 39. Rc1 Kd6 40. Rc4 Bxa5 41. Ra4 Bc3 42. Rxa6+ Kd5 43. Ra7 f4 44. Rc7 f3+ 45. Kf1 Kd4 46. Rxh7 e5 47. Rg7 e4 48. Rxg4 Kd3 49. Rf4 Be5 50. Rf5 Bxh2 51. Kf2 Bb8 52. Rf7 Be5 1/2-1/2

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "10"]
[White "Atanasov, Petko"]
[Black "Inkiov, Ventzislav"]
[Result "1/2-1/2"]
[ECO "B83"]
[WhiteElo "2400"]
[BlackElo "2500"]
[PlyCount "26"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. 0-0 0-0 9. f4 exf4 10. Bxf4 Be6 11. Kh1 d5 12. exd5 Nxd5 13. Nxd5 Qxd5 1/2-1/2

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "4"]
[White "Atanasov, Petko"]
[Black "Kirov, Nino"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2400"]
[BlackElo "2425"]
[PlyCount "90"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. 0-0 Nge7 5. Re1 Ng6 6. Nc3 a6 7. Bf1 Be7 8. d4 cxd4 9. Nxd4 0-0 10. Be3 Qc7 11. Nb3 b5 12. Qh5 Bf6 13. Rad1 d6 14. Bc1 Bxc3 15. bxc3 e5 16. g3 Nce7 17. Rd3 Bb7 18. Bg2 f5 19. Nd2 Rad8 20. Bh3 fxe4 21. Nxe4 Bxe4 22. Rxe4 d5 23. Re2 e4 24. Rde3 Ne5 25. c4 Nxc4 26. Rb3 Qc6 27. f3 Ng6 28. Bf5 Qf6 29. g4 Qd4+ 30. Be3 Nxe3 31. Rexe3 Qd1+ 32. Kf2 Qxc2+ 33. Kf1 Rf6 34. Rbc3 Qd1+ 35. Re1 Qd2 36. Rc7 Qd3+ 37. Kg1 Qxf3 38. Rf1 Qe3+ 39. Kh1 Qe2 40. Be6+ Rxe6 41. Rff7 Qe1+ 42. Kg2 Qd2+ 43. Kh1 Re7 44. Rcxe7 Nxe7 45. Rxe7 Rf8 0-1

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "8"]
[White "Atanasov, Petko"]
[Black "Lalev, Dimitar"]
[Result "0-1"]
[ECO "B80"]
[WhiteElo "2400"]
[BlackElo "2385"]
[PlyCount "92"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 a6 6. g3 Nf6 7. Bg2 Be7 8. 0-0 0-0 9. h3 Qc7 10. Be3 Nc6 11. Nce2 Nxd4 12. Bxd4 Bd7 13. Re1 Bc6 14. Nc3 b5 15. a3 Rfd8 16. Qe2 Qb7 17. Nd1 Nd7 18. f4 e5 19. Bc3 exf4 20. gxf4 Re8 21. Ne3 Bf8 22. Qg4 g6 23. Nf5 Bxe4 24. Rxe4 Rxe4 25. Ng3 d5 26. Bxe4 dxe4 27. Rd1 Qb6+ 28. Kg2 Nf6 29. Qg5 Bg7 30. Qe5 Qe3 31. Rd3 Qa7 32. Rd1 Re8 33. Qd6 Qe3 34. Rf1 Nh5 35. Nxh5 Bxc3 36. bxc3 Qe2+ 37. Rf2 Qxh5 38. Qd7 Rf8 39. f5 Qg5+ 40. Kh2 e3 41. Re2 Qf4+ 42. Kg2 Qg5+ 43. Kh2 Rd8 44. Qc6 Rd1 45. Qe8+ Kg7 46. Qxe3 Qxf5 0-1

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "2"]
[White "Atanasov, Petko"]
[Black "Lukov, Valentin"]
[Result "0-1"]
[ECO "B52"]
[WhiteElo "2400"]
[BlackElo "2430"]
[PlyCount "106"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. 0-0 Nc6 6. c3 Nf6 7. Re1 e6 8. d3 Be7 9. Nbd2 0-0 10. Nf1 Ne5 11. Bf4 Ng6 12. Bd2 Qb5 13. Qc2 Rac8 14. d4 cxd4 15. Nxd4 Qc4 16. Ne3 Qc5 17. Rad1 Bd8 18. Bc1 Bb6 19. Qb3 Rfd8 20. Kh1 e5 21. Ndf5 Nxe4 22. Ng4 d5 23. Rxe4 dxe4 24. Ngh6+ gxh6 25. Nxh6+ Kh8 26. Nxf7+ Kg7 27. Bh6+ Kf6 28. Bg5+ Kg7 29. Nxd8 Rxd8 30. Bxd8 Bxd8 31. Rxd8 Qxf2 32. Qd1 e3 33. Qg1 e4 34. Rd1 Ne5 35. Re1 Ng4 36. g3 Qd2 37. Rf1 Nf2+ 38. Kg2 Nd1+ 39. Kh3 e2 40. Re1 Ne3 41. g4 Nc2 42. Qg3 Nxe1 43. Qe5+ Kf7 44. Qf5+ Ke7 45. Qe5+ Kd7 46. Qf5+ Kd6 47. Qf8+ Kc6 48. Qc8+ Kb6 49. Qe6+ Kc7 50. Qc4+ Kd6 51. Qb4+ Ke5 52. Qe7+ Kf4 53. Qc7+ Ke3 0-1

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "7"]
[White "Cabrilo, Goran"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "2445"]
[BlackElo "2400"]
[PlyCount "85"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 Nd5 7. N1f3 h6 8. Ne4 N7f6 9. Nxf6+ gxf6 10. Be2 Bf5 11. a3 Qc7 12. g3 0-0-0 13. c4 Nb6 14. Qb3 e5 15. Be3 c5 16. d5 Kb8 17. Nh4 Bd7 18. Qc2 Nc8 19. 0-0 h5 20. b4 b6 21. Rab1 Ka8 22. Rfd1 Nd6 23. a4 Bh6 24. Bxh6 Rxh6 25. a5 cxb4 26. axb6 Qc5 27. bxa7 f5 28. Qd2 Ne4 29. Qxb4 Qxf2+ 30. Kh1 Qxa7 31. Ra1 Ra6 32. Rxa6 Qxa6 33. Qe1 Ba4 34. Ra1 Rb8 35. Bd1 Nc5 36. Bxa4 Nxa4 37. Qd1 Rb4 38. d6 Qc6+ 39. Ng2 Rb2 40. Qxa4+ Qxa4 41. Rxa4+ Kb7 42. h4 Rd2 43. Ra5 1-0

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "5"]
[White "Ermenkov, Evgenij"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "B17"]
[WhiteElo "2445"]
[BlackElo "2400"]
[PlyCount "53"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6 7. Nf3 e6 8. 0-0 Be7 9. Re1 0-0 10. c3 c5 11. Bg5 cxd4 12. Nxd4 Qa5 13. Bf4 Bd7 14. Bb3 Rac8 15. Qf3 b5 16. Nf5 Bc5 17. Nxg7 Bc6 18. Qg3 Kh8 19. Be5 Be7 20. Nh5 Rg8 21. Qf4 Rxg2+ 22. Kf1 Rg6 23. Nxf6 b4 24. Nd5+ f6 25. Nxe7 Qa6+ 26. Re2 fxe5 27. Nxg6+ 1-0

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "9"]
[White "Espig, Lutz"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "E08"]
[WhiteElo "2425"]
[BlackElo "2400"]
[PlyCount "85"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. g3 Be7 5. Bg2 0-0 6. 0-0 Nbd7 7. Qc2 c5 8. cxd5 Nxd5 9. Nc3 Nxc3 10. bxc3 Qc7 11. Bf4 Bd6 12. Bxd6 Qxd6 13. Rfd1 Rb8 14. Ng5 g6 15. Qe4 h6 16. dxc5 Qe7 17. c6 bxc6 18. Nf3 c5 19. Qa4 a6 20. Qf4 Qf6 21. Qxh6 Qxc3 22. e4 Qf6 23. Qe3 Ne5 24. Nxe5 Qxe5 25. Rac1 Rb5 26. a4 Ra5 27. Rc4 Bb7 28. Rdc1 Rc8 29. Qe1 Qc7 30. h4 Rd8 31. Qe3 Qd7 32. Qg5 Qd2 33. Qe7 Bc6 34. h5 Rd7 35. Qf6 gxh5 36. Rxc5 Rxc5 37. Rxc5 Bb7 38. Kh2 Qd4 39. Rg5+ Kf8 40. e5 Qd1 41. Qh6+ Ke7 42. Rg8 Rd5 43. Qf8+ 1-0

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "1"]
[White "Georgiev, Krum"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "D36"]
[WhiteElo "2440"]
[BlackElo "2400"]
[PlyCount "93"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. Bg5 c6 6. cxd5 exd5 7. e3 Be7 8. Bd3 0-0 9. Qc2 Re8 10. 0-0 Nf8 11. Rae1 Nh5 12. Bxe7 Rxe7 13. b4 Qd6 14. b5 Ng6 15. bxc6 bxc6 16. Ne2 Bg4 17. Nd2 Rae8 18. Rc1 Rc7 19. Ng3 Nxg3 20. hxg3 Nf8 21. Rfe1 h5 22. Qc3 Qh6 23. e4 dxe4 24. Rxe4 Rd8 25. Re5 Be6 26. Be4 Nd7 27. Qa5 Nxe5 28. Qxc7 Rc8 29. Qxe5 Qxd2 30. Rc5 Rd8 31. Bxc6 Qxd4 32. Qxd4 Rxd4 33. Ra5 Rd1+ 34. Kh2 Rd2 35. a4 Rc2 36. Bb7 Rxf2 37. Rxa7 Ra2 38. a5 g5 39. a6 Kg7 40. Ra8 Kf6 41. Rd8 h4 42. gxh4 gxh4 43. Kg1 h3 44. gxh3 Bxh3 45. Rd6+ Ke7 46. Rb6 Kd8 47. Bd5 1/2-1/2

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "11"]
[White "Meduna, Eduard"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2475"]
[BlackElo "2400"]
[PlyCount "69"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb1 0-0 9. Be2 Nc6 10. d5 Ne5 11. Nxe5 Bxe5 12. Qd2 Qa5 13. Rb3 a6 14. f4 Bg7 15. c4 Qc7 16. Bb2 b5 17. Bxg7 Kxg7 18. 0-0 f6 19. cxb5 axb5 20. Rc1 Ra4 21. Rxb5 c4 22. Qe3 Bd7 23. Rb2 Rc8 24. Rbc2 Bb5 25. a3 Qa5 26. Rc3 Qc7 27. h3 Rca8 28. e5 Ba6 29. Rb1 Rf8 30. Rb6 fxe5 31. fxe5 Rb8 32. Rxb8 Qxb8 33. Qd4 Qb2 34. e6+ Kh6 35. Qh4+ 1-0

[Event "Varna-22"]
[Site "Varna"]
[Date "1983.05.??"]
[Round "3"]
[White "Spiridonov, Nikola"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "A15"]
[WhiteElo "2405"]
[BlackElo "2400"]
[PlyCount "111"]
[EventDate "1983.05.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "8"]
[SourceTitle "MCD"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "1"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. c4 Nf6 2. Nf3 g6 3. b4 Bg7 4. Bb2 0-0 5. e3 d6 6. d4 a5 7. b5 Nbd7 8. Qc2 Re8 9. Be2 e5 10. 0-0 exd4 11. exd4 Ne4 12. Bd3 Ng5 13. Nbd2 Nxf3+ 14. Nxf3 Nf6 15. h3 Bd7 16. Rfe1 Nh5 17. Rxe8+ Qxe8 18. Re1 Qf8 19. Be4 Rb8 20. Bc3 b6 21. Bc6 Bxc6 22. bxc6 Re8 23. Re4 Nf6 24. Rxe8 Qxe8 25. d5 Qe4 26. Qb2 Ne8 27. Bxg7 Nxg7 28. Qf6 Qe8 29. g4 Kf8 30. Qf4 h5 31. Kg2 hxg4 32. hxg4 f5 33. Nd4 g5 34. Qf3 f4 35. Qd3 Qe5 36. Nf3 Qf6 37. a4 Kg8 38. Qe4 Kf7 39. Qh7 Qg6 40. Qh8 Ne8 41. Kh3 Ke7 42. Qh5 Kf6 43. Qh8+ Ke7 44. Kg2 Kf7 45. Kh2 Nf6 46. Qc8 Qc2 47. Nxg5+ Kg7 48. Ne6+ Kg6 49. Nxf4+ Kg5 50. Nh3+ Kg6 51. Qe6 Kg7 52. Qe7+ Kg6 53. Nf4+ Kg5 54. Ne6+ Kxg4 55. Qxf6 Qh7+ 56. Kg1 1-0

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "9"]
[White "Atanasov, Petko"]
[Black "Filchev, Rusko"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "2275"]
[PlyCount "49"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 5. d4 fxe4 6. Nxe5 Qh4 7. Bb3 Nf6 8. Nf7 e3 9. Bxe3 d5 10. Nxh8 Bg4 11. Qd3 0-0-0 12. Nd2 Nxd4 13. Qxd4 c5 14. Nf3 cxd4 15. Nxh4 dxe3 16. fxe3 Bc5 17. Nf7 Re8 18. 0-0 Bh5 19. Nf5 Bxf7 20. Nxg7 Rxe3 21. Kh1 Bg6 22. Rxf6 Be4 23. Ne6 Be7 24. Rf2 Bh4 25. Rf8+ 1-0

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "6"]
[White "Atanasov, Petko"]
[Black "Ilievski, Dimitar"]
[Result "1-0"]
[ECO "B86"]
[WhiteElo "2275"]
[PlyCount "113"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Be7 8. f4 Qc7 9. f5 e5 10. Nf3 Nbd7 11. g4 Qc6 12. Qe2 Nc5 13. g5 Nxb3 14. axb3 Nd7 15. Be3 Nc5 16. Bxc5 Qxc5 17. 0-0-0 Bd7 18. Nd5 Bd8 19. h4 h5 20. Kb1 Rc8 21. Rd3 Bb5 22. c4 Bd7 23. Rc1 a5 24. Nc3 Bc6 25. Rcd1 Bc7 26. g6 f6 27. Rd5 Bxd5 28. Rxd5 Qc6 29. Ne1 Bb6 30. Qd1 Ke7 31. Rb5 Bc5 32. Nd3 Bd4 33. Nd5+ Kd7 34. Rxa5 Ra8 35. Rxa8 Rxa8 36. Qxh5 Qc8 37. Qh7 Qh8 38. Nxf6+ Kc6 39. Nb4+ Kc5 40. Nd3+ Kc6 41. Qxh8 Rxh8 42. Nh7 Be3 43. h5 Kd7 44. f6 gxf6 45. Nxf6+ Ke6 46. g7 Ra8 47. g8Q+ Rxg8 48. Nxg8 Kf7 49. c5 dxc5 50. Nxe5+ Kxg8 51. Kc2 Bd4 52. Nf3 Bg7 53. e5 Bh6 54. Kd3 b5 55. Ke4 Bc1 56. e6 Bxb2 57. Ne5 1-0

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "11"]
[White "Atanasov, Petko"]
[Black "Kolarov, Atanas Stefanov"]
[Result "1/2-1/2"]
[ECO "C04"]
[WhiteElo "2275"]
[BlackElo "2435"]
[PlyCount "23"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. Ngf3 Nf6 5. e5 Nd7 6. Nb3 a5 7. a4 b6 8. Bd2 Na7 9. Bd3 Be7 10. Be3 Bb7 11. c3 c5 12. Nbd2 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "2"]
[White "Atanasov, Petko"]
[Black "Lukacs, Peter"]
[Result "1/2-1/2"]
[ECO "A32"]
[WhiteElo "2275"]
[BlackElo "2460"]
[PlyCount "42"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 e6 5. e3 Nc6 6. Nc3 Bb4 7. Bd2 0-0 8. Qb3 Bc5 9. Nxc6 bxc6 10. Na4 Be7 11. Bd3 d5 12. Bc3 Ba6 13. Rd1 Qc7 14. Bxf6 Bxf6 15. 0-0 Qa5 16. Qc2 g6 17. b3 Rad8 18. g3 dxc4 19. Bxc4 Bb5 20. Nc5 Rxd1 21. Rxd1 Rd8 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "13"]
[White "Atanasov, Petko"]
[Black "Mihaljcisin, Mihajlo"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2275"]
[BlackElo "2380"]
[PlyCount "38"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Bg5 d5 4. Nbd2 Bg7 5. e3 c5 6. c3 cxd4 7. exd4 Nc6 8. Bd3 Bf5 9. Nb3 0-0 10. 0-0 Qc7 11. Re1 e6 12. Bb5 Ne4 13. Bh4 a6 14. Bxc6 bxc6 15. Nfd2 g5 16. Bg3 Nxg3 17. hxg3 g4 18. Kf1 h5 19. Nc5 Bf6 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "4"]
[White "Atanasov, Petko"]
[Black "Spiridonov, Nikola"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2275"]
[BlackElo "2390"]
[PlyCount "158"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nc3 g6 4. Be3 dxe4 5. Nxe4 Nh6 6. c3 Bg7 7. Nf3 0-0 8. Qd2 Nf5 9. Bf4 a5 10. Bd3 a4 11. 0-0 Nd6 12. Rfe1 Nxe4 13. Bxe4 Nd7 14. h3 Nf6 15. Bd3 Be6 16. c4 Re8 17. Rad1 Qc8 18. Qb4 b5 19. d5 Bxd5 20. cxd5 Nxd5 21. Qd2 Nxf4 22. Qxf4 Bxb2 23. Ne5 Bxe5 24. Rxe5 Qc7 25. Qe3 Rad8 26. Rc5 Rd6 27. Rdc1 Qd7 28. Be4 Rd1+ 29. Kh2 Qd6+ 30. g3 Rxc1 31. Qxc1 Rc8 32. Rxc6 Rxc6 33. Qxc6 Qd4 34. Kg2 e6 35. Qc2 b4 36. Bc6 b3 37. axb3 a3 38. Qa2 Qc5 39. Be4 h5 40. h4 Qd4 41. Bb1 Qd5+ 42. Kh2 Qd1 43. b4 Qe1 44. b5 Qf1 45. Be4 Qxb5 46. Qxa3 Qe5 47. Qe3 Kg7 48. Kg2 Qf6 49. Bf3 Qb2 50. Qg5 Kf8 51. Qh6+ Kg8 52. Be4 Qe2 53. Bb1 Qd1 54. Bxg6 Qd5+ 55. Kh2 fxg6 56. Qxg6+ Kf8 57. Qg5 Qa2 58. Kg2 Qa8+ 59. f3 Qe8 60. Kf2 e5 61. Kg2 Qb5 62. Qxh5 Qe2+ 63. Kh3 Qf1+ 64. Kg4 Qc4+ 65. Kg5 Qc1+ 66. f4 exf4 67. Qh8+ Kf7 68. Qf6+ Kg8 69. Qxf4 Qc5+ 70. Kg4 Qc8+ 71. Qf5 Qc4+ 72. Kh5 Kh8 73. Qf8+ Kh7 74. Qe7+ Kh8 75. Qf6+ Kh7 76. Qh6+ Kg8 77. g4 Qf7+ 78. Qg6+ Kh8 79. Kg5 Qf4+ 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "7"]
[White "Donev, Ivo Hristov"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "C00"]
[BlackElo "2275"]
[PlyCount "54"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 c5 2. f4 e6 3. Nf3 Nc6 4. c3 d5 5. e5 Nge7 6. d4 Nf5 7. Bd3 g6 8. Bxf5 gxf5 9. Be3 b6 10. 0-0 Ba6 11. Rf2 Qd7 12. Qc2 Rc8 13. Qd1 h6 14. Ne1 Be7 15. Nd2 Na5 16. b3 cxd4 17. Bxd4 Nc6 18. Rc1 Nxd4 19. cxd4 0-0 20. Ndf3 Qb5 21. h3 Kg7 22. a4 Rxc1 23. Qxc1 Qxb3 24. Qc7 Bb4 25. Qxa7 Bc4 26. Nd2 Bxd2 27. Rxd2 Qe3+ 0-1

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "5"]
[White "Grigorov, Jordan N"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2340"]
[BlackElo "2275"]
[PlyCount "27"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. g3 Ngf6 6. Bg2 Nxe4 7. Bxe4 Be7 8. Ne2 c6 9. 0-0 0-0 10. b3 e5 11. dxe5 Nxe5 12. Qxd8 Rxd8 13. Bf4 Bf6 14. Rad1 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "10"]
[White "Gunev, Zlatan"]
[Black "Atanasov, Petko"]
[Result "0-1"]
[ECO "A28"]
[BlackElo "2275"]
[PlyCount "84"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. d4 Bb4 5. Nf3 Qe7 6. Be2 0-0 7. 0-0 Bxc3 8. bxc3 b6 9. a4 d6 10. Ba3 Re8 11. Qc2 Bg4 12. h3 Bh5 13. Rfe1 Qd7 14. Red1 e4 15. Nh2 Na5 16. Bxh5 Nxh5 17. Qe2 Nf6 18. Bb4 Nb7 19. c5 dxc5 20. dxc5 Qc6 21. cxb6 axb6 22. Qb5 Nd8 23. Nf1 Qe6 24. Ng3 c5 25. Ba3 Ra5 26. Qb1 Rxa4 27. Bb2 Rxa1 28. Qxa1 Nc6 29. Qa6 Ne5 30. Qb7 Nd3 31. Ba1 c4 32. Rb1 Nd5 33. Rb5 Nc5 34. Qa7 Qc6 35. Rxc5 bxc5 36. Qa2 Ra8 37. Qb1 Nf6 38. Bb2 Qb7 39. Qc1 Rb8 40. Ba3 Qb1 41. Qxb1 Rxb1+ 42. Kh2 Rb5 0-1

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "3"]
[White "Merdinjan, Agop"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "A12"]
[WhiteElo "2315"]
[BlackElo "2275"]
[PlyCount "49"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 Bf5 5. 0-0 e6 6. b3 h6 7. Bb2 Be7 8. d3 0-0 9. Nbd2 a5 10. a3 Bh7 11. Qc2 Nbd7 12. Rac1 Bc5 13. Qb1 Re8 14. Qa1 Qb6 15. h3 Bd6 16. d4 Bf8 17. Ne5 Nxe5 18. dxe5 Nd7 19. cxd5 exd5 20. Kh2 f6 21. exf6 Nxf6 22. Bd4 Qd8 23. e3 Ne4 24. Nxe4 Bxe4 25. Qb2 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "12"]
[White "Stanciu, Traian"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "C66"]
[BlackElo "2275"]
[PlyCount "82"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 d6 6. Bb5 Bd7 7. 0-0 Be7 8. Re1 0-0 9. Bxc6 bxc6 10. Qd3 Re8 11. h3 c5 12. Nf3 Bc6 13. Bf4 Rb8 14. b3 Nh5 15. Bh2 g6 16. Nd5 Bf8 17. Rad1 f6 18. Nd2 Bxd5 19. Qxd5+ Kh8 20. f4 Qc8 21. Nc4 Bh6 22. e5 Nxf4 23. Bxf4 Bxf4 24. exd6 cxd6 25. Rf1 Be5 26. Nxe5 Rxe5 27. Qxd6 Re6 28. Qd7 a6 29. Rd6 Qxd7 30. Rxd7 Rc8 31. Rfd1 Re2 32. R1d2 Rxd2 33. Rxd2 c4 34. Rd6 cxb3 35. cxb3 a5 36. Rxf6 Rc1+ 37. Kh2 a4 38. bxa4 Rc2 39. a5 Rxa2 40. a6 Kg7 41. Rc6 h5 1/2-1/2

[Event "Kamen Piskov Memorial-02"]
[Site "Ruse"]
[Date "1978.06.??"]
[Round "1"]
[White "Szekely, Peter"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2450"]
[BlackElo "2275"]
[PlyCount "47"]
[EventDate "1978.06.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "BUL"]
[EventCategory "5"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Bd6 5. 0-0 0-0 6. d4 c6 7. Qc2 b5 8. c5 Bc7 9. Nbd2 Nbd7 10. e4 e5 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Nf3 Qc7 14. exd5 Nxd5 15. Re1 Bf6 16. Bg5 Be6 17. Bxf6 Nxf6 18. Nd4 Bd5 19. Nf5 Rae8 20. Qd2 Re6 21. Qg5 g6 22. Nh6+ Kg7 23. Nf5+ Kg8 24. Nh6+ 1/2-1/2

[Event "BUL-ch31"]
[Site "Sofia"]
[Date "1977.12.??"]
[Round "?"]
[White "Atanasov, Petko"]
[Black "Spiridonov, Nikola"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2275"]
[BlackElo "2420"]
[PlyCount "63"]
[EventDate "1977.12.02"]
[EventType "tourn"]
[EventRounds "15"]
[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. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bg5 Bg4 7. f3 Bh5 8. Ne2 e6 9. Nd2 Bg6 10. Nf1 Bxd3 11. Qxd3 Be7 12. Ne3 Rb8 13. 0-0 0-0 14. Bxf6 Bxf6 15. f4 g6 16. a4 Bg7 17. Kh1 Ne7 18. g4 f5 19. Ng3 Nc8 20. gxf5 gxf5 21. Rg1 Rf6 22. Ngxf5 exf5 23. Nxf5 Rg6 24. Nxg7 Rxg7 25. Rxg7+ Kxg7 26. Rg1+ Kf6 27. Qxh7 Ne7 28. Qh6+ Kf5 29. Rg5+ Ke4 30. Qh4 Ke3 31. Qh3+ Ke4 32. Re5+ 1-0

[Event "BUL-ch31"]
[Site "Sofia"]
[Date "1977.12.??"]
[Round "?"]
[White "Radulov, Ivan"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "C06"]
[WhiteElo "2500"]
[BlackElo "2275"]
[PlyCount "49"]
[EventDate "1977.12.02"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 2010"]
[Source "ChessBase"]
[SourceDate "2010.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2010.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 b6 6. Ne2 Ba6 7. Bxa6 Nxa6 8. 0-0 c5 9. f4 g6 10. Nf3 Be7 11. Be3 Nb4 12. a3 Nc6 13. c4 dxc4 14. d5 exd5 15. Qxd5 Qc7 16. Nc3 0-0 17. Qxc4 Na5 18. Qe4 Qc6 19. Nd5 Rae8 20. b4 cxb4 21. axb4 Qc4 22. Qxc4 Nxc4 23. Bd4 Nb8 24. Rxa7 Bd8 25. b5 1-0

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.21"]
[Round "15"]
[White "Georgiev, Krum"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "B89"]
[PlyCount "21"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[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. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 a6 8. Qe2 Qc7 9. 0-0-0 Na5 10. Bd3 Be7 11. g4 1/2-1/2

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.19"]
[Round "14"]
[White "Atanasov, Petko"]
[Black "Peev, Peicho Chonev"]
[Result "1/2-1/2"]
[ECO "B07"]
[PlyCount "82"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 c6 5. Qd2 Nbd7 6. f4 b5 7. Bd3 Nb6 8. e5 b4 9. Nce2 Nfd5 10. Nf3 Bg7 11. 0-0 0-0 12. f5 dxe5 13. fxg6 fxg6 14. Nxe5 Qd6 15. Rxf8+ Bxf8 16. Rf1 Be6 17. Bh6 Nd7 18. Ng3 N5f6 19. Nf3 Qb8 20. Bf4 Qb7 21. Qe2 Bd5 22. h4 Bf7 23. Ne5 Nxe5 24. dxe5 Nd5 25. e6 Be8 26. Qg4 Qb6+ 27. Kh1 Bg7 28. h5 Ne3 29. Bxe3 Qxe3 30. Rf3 Qc1+ 31. Kh2 Rd8 32. hxg6 Qh6+ 33. Qh3 Qxh3+ 34. Kxh3 Bxg6 35. Nf5 Bf6 36. g4 c5 37. b3 Bg5 38. Rf2 Rd5 39. Re2 Bf6 40. Kg3 Kf8 41. Kf4 Ke8 1/2-1/2

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.18"]
[Round "13"]
[White "Donchev, Dimitar I"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "C68"]
[PlyCount "81"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[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. Bxc6 bxc6 5. d4 exd4 6. Qxd4 Qf6 7. Qd3 Bc5 8. 0-0 Ne7 9. Nc3 0-0 10. e5 Qf5 11. Ne4 Ba7 12. Bg5 f6 13. exf6 gxf6 14. Nh4 Qe6 15. Bh6 Qf7 16. Bxf8 Kxf8 17. Nf3 Qg6 18. Rfe1 d5 19. Ng3 Qxd3 20. cxd3 Bg4 21. h3 Bxf3 22. gxf3 Kf7 23. Rac1 Rb8 24. Rc2 Bb6 25. b4 a5 26. a3 axb4 27. axb4 Ra8 28. Nh5 Ra3 29. Rce2 Ng8 30. Kh2 Kg6 31. Rg1+ Kxh5 32. Rxg8 Rxd3 33. Kg2 Rb3 34. Re6 Rxb4 35. Rxf6 Rb2 36. Rf5+ Kh6 37. Kg3 Rb1 38. Rf6+ Kh5 39. Kf4 Rb4+ 40. Kf5 h6 41. Rgg6 1-0

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.17"]
[Round "12"]
[White "Atanasov, Petko"]
[Black "Radev Iordanov, Nikolay"]
[Result "0-1"]
[ECO "B41"]
[PlyCount "80"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. e5 Ne4 8. Qg4 Nxc3 9. a3 Bf8 10. bxc3 Qa5 11. Qg3 d6 12. f4 dxe5 13. fxe5 Nd7 14. Bf4 g5 15. Bxg5 Bg7 16. Bf4 Nxe5 17. Qxg7 Qxc3+ 18. Ke2 Ng6 19. Nf5 Qxc4+ 20. Ke1 Qxf4 21. Nh6 Bd7 22. Rd1 Qe5+ 23. Qxe5 Nxe5 24. Be2 Ke7 25. Rf1 Bc6 26. Bh5 f6 27. g3 Rad8 28. Be2 Rxd1+ 29. Kxd1 Rd8+ 30. Kc2 Be4+ 31. Kc3 Bd3 32. Bxd3 Rxd3+ 33. Kc2 Rxa3 34. Ng8+ Kd6 35. Nxf6 Ra2+ 36. Kc3 Rxh2 37. Ne4+ Ke7 38. Nc5 Rg2 39. Nxb7 Rxg3+ 40. Kd4 Nd7 0-1

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.16"]
[Round "11"]
[White "Popov, Luben"]
[Black "Atanasov, Petko"]
[Result "1/2-1/2"]
[ECO "E10"]
[PlyCount "37"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[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 c5 4. d5 b5 5. Bg5 h6 6. Bxf6 Qxf6 7. Nc3 b4 8. Nb5 Na6 9. Rb1 Be7 10. e4 0-0 11. Bd3 e5 12. 0-0 d6 13. Nd2 Bd8 14. a3 Nb8 15. axb4 cxb4 16. Ra1 a5 17. Ra4 Nd7 18. Nb3 Bb6 19. Qf3 1/2-1/2

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.14"]
[Round "10"]
[White "Atanasov, Petko"]
[Black "Kirov, Nino"]
[Result "1/2-1/2"]
[ECO "B00"]
[PlyCount "20"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[EventCountry "BUL"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 b6 2. d4 g6 3. Nc3 Bb7 4. Be3 Bg7 5. Qd2 d6 6. f3 e6 7. Nge2 Ne7 8. 0-0-0 Nd7 9. Bh6 0-0 10. Bxg7 Kxg7 1/2-1/2

[Event "BUL-ch29"]
[Site "Pernik"]
[Date "1975.12.13"]
[Round "9"]
[White "Antonov, Vladimir"]
[Black "Atanasov, Petko"]
[Result "1-0"]
[ECO "C95"]
[PlyCount "83"]
[EventDate "1975.12.04"]
[EventType "tourn"]
[EventRounds "15"]
[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 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. b4 Bf8 14. Bb2 g6 15. Bd3 Nb6 16. Rc1 Nfd7 17. Qb3 c5 18. bxc5 dxc5 19. Qc2 c4 20. Bf1 Qc7 21. Nb1 Rac8 22. Rcd1 exd4 23. Nxd4 Nf6 24. f3 Nh5 25. Ba3 Bxa3 26. Nxa3 Rcd8 27. Qd2 Na4 28. Nac2 Qg3 29. Rb1 Bc8 30. Kh1 Nf4 31. Re3 Nc5 32. Na3 Bb7 33. Qe1 Qg5 34. Qf2 Nh5 35. Ree1 Rd6 36. Red1 Red8 37. Be2 Na4 38. Rbc1 Ng3+ 39. Kg1 Nxe2+ 40. Qxe2 Nxc3 41. Rxc3 Rxd4 42. Rxd4 1-0

