| ECO A17 in 1967 play it! ivkov borislav defeats black's vizantiadis laza in 65 moves | 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. d4 d5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Bb7 8. O-O Nbd7 9. Rc1 a6 10. Qe2 h6 11. Bf4 Ne4 12. cxd5 exd5 13. Bxc7 Qe8 14. Na4 b5 15. Nb6 Nxb6 16. Bxb6 Rc8 17. Bc7 Bd6 18. Bxd6 Nxd6 19. Nd2 Nc4 20. Nb3 Qe7 21. Nc5 Nd6 22. Rc2 f5 23. Rfc1 Rc7 24. Nxb7 Rxb7 25. Qf3 Ne4 26. Qf4 Rd7 27. Rc8 Kh7 28. Qe5 Rf6 29. Qxe7 Rxe7 30. Rd8 Rd6 31. Rxd6 Nxd6 32. Rc5 Nc4 33. b3 |
| ECO A17 in 1971 play it! ivkov borislav defeats black's najdorf miguel in 115 moves | 1. c4 Nf6 2. Nc3 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d4 Ne4 8. Qc2 Nxc3 9. Qxc3 c5 10. Rd1 d6 11. b3 Bf6 12. Bb2 Qe7 13. Qd2 Nc6 14. d5 exd5 15. Bxf6 Qxf6 16. Qxd5 Rad8 17. Qg5 Qe6 18. Rd2 h6 19. Qh5 Na5 20. Rad1 Rfe8 21. Ne1 Bxg2 22. Nxg2 Nc6 23. Nf4 Qe5 24. e3 Qe7 25. Nd5 Qd7 26. Nc3 Re6 27. Nd5 Re5 28. Qf3 Ree8 29. Qg2 Ne5 30. Kh1 f5 31. Nc3 Nf7 32. Nb5 a6 33. Nc3 b5 34. Qf1 b4 35. Nd5 a5 36. Qg2 Re4 37. h3 Rde8 38. Ra1 Qd8 39. a4 Kh8 40. Qf3 Qd7 41. Rad1 Kg8 42. Rg1 Ng5 43. Qg2 Nf7 44. Re2 Kh7 45. f4 Nd8 46. g4 fxg4 47. Qxg4 Qxg4 48. Rxg4 Ne6 49. Reg2 Rf8 50. Rg6 Rf7 51. R2g3 Kh8 52. Kg2 Kh7 53. h4 Rf5 54. Kf3 Ree5 55. Ke2 Rxf4 56. Rxe6 Rxh4 57. Reg6 Re7 58. Nxe7 |
| ECO A10 in 1972 play it! ivkov borislav defeats black's robatsch karl in 57 moves | 1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. a3 e6 6. Rb1 a5 7. Nf3 Nge7 8. O-O O-O 9. d3 d5 10. Bf4 d4 11. Na4 b6 12. Ne5 Bb7 13. Nxc6 Bxc6 14. Bxc6 Nxc6 15. Qb3 e5 16. Bd2 Rb8 17. Qb5 Qc8 18. Nxb6 Qe6 19. Qxc5 Rfd8 20. Qb5 Na7 21. Qxa5 Qxb6 22. Qxb6 Rxb6 23. Ba5 Rdb8 24. Bxb6 Rxb6 25. b4 Bf8 26. b5 Bc5 27. a4 Kf8 28. a5 Rb8 29. b6 |
| ECO A15 in 1965 play it! ivkov borislav defeats black's medinagarcia ant in 78 moves | 1. c4 Nf6 2. Nf3 e6 3. Nc3 d5 4. d4 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. a3 Nc6 9. b4 Bd6 10. cxd5 Bxf4 11. dxc6 Bd6 12. Nb5 Be7 13. Qxd8 Bxd8 14. Nbd4 Nd5 15. Bc4 bxc6 16. Nxc6 Bf6 17. Bxd5 exd5 18. Nfd4 Bd7 19. Rc1 Bxc6 20. Nxc6 a5 21. Rb1 axb4 22. axb4 Bc3+ 23. Ke2 Ra2+ 24. Kf3 Re8 25. Rhc1 d4 26. Nxd4 Bxd4 27. exd4 Ra3+ 28. Kf4 f6 29. Re1 Rd8 30. Ke4 f5+ 31. Ke5 Ra2 32. b5 Rd2 33. b6 R2xd4 34. b7 R8d5+ 35. Ke6 Rd6+ 36. Kxf5 g6+ 37. Ke5 R6d5+ 38. Kf6 Rd6+ 39. Re6 Rd8 |
| ECO A34 in 1970 play it! ivkov borislav defeats black's bobotsov milko in 68 moves | 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 e5 6. O-O Nge7 7. a3 d6 8. Rb1 b6 9. b4 Bb7 10. Ne1 Qd7 11. Nc2 Nd4 12. Bxb7 Qxb7 13. Ne3 O-O 14. Ned5 Nxd5 15. Nxd5 f5 16. bxc5 dxc5 17. e3 Ne6 18. d3 Nc7 19. e4 Nxd5 20. exd5 Rae8 21. Re1 Qf7 22. Qf3 e4 23. dxe4 Rxe4 24. Rxe4 fxe4 25. Qxf7+ Kxf7 26. Bf4 Re8 27. Re1 Bd4 28. Kg2 Kf6 29. Bc7 e3 30. Bf4 e2 31. Kf3 g5 32. Be3 Bxe3 33. fxe3 Ke5 34. a4 a6 |
| ECO A15 in 1974 play it! ivkov borislav defeats black's radulov ivan in 51 moves | 1. c4 Nf6 2. Nf3 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. Nc3 d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. Qc2 c5 11. e4 Bb7 12. Rd1 cxd4 13. Nxd4 Qc8 14. Qxc8 Rxc8 15. Bf4 g5 16. Be3 Na6 17. Nb5 Bc6 18. Nd6 Rd8 19. Rac1 Nb4 20. a3 Rxd6 21. Rxd6 Bxd6 22. axb4 Bb7 23. e5 Bxg2 24. exd6 Bh3 25. Bxg5 e5 26. Rc7 |
| ECO A15 in 1968 play it! ivkov borislav defeats black's langeweg kick in 129 moves | 1. c4 Nf6 2. d4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. Nc3 d5 8. O-O O-O 9. Ne5 c6 10. Qa4 Nbd7 11. Nxc6 Bxc6 12. Qxc6 Rc8 13. Qb5 Rxc4 14. e3 Qc8 15. Rfc1 a6 16. Qb3 Rc7 17. e4 Nxe4 18. Nxe4 dxe4 19. Bxe4 b5 20. Rxc7 Qxc7 21. Rc1 Qd8 22. Be3 Nf6 23. Bb7 Qb6 24. Bf3 Qa5 25. Bf4 h6 26. h4 b4 27. Rc7 Bd8 28. Rb7 Bb6 29. Bd6 Rc8 30. Be5 Rd8 31. Qc4 b3 32. axb3 Qe1+ 33. Kg2 Ne4 34. Qf1 Qxf1+ 35. Kxf1 Nd2+ 36. Ke2 Nxf3 37. Rxb6 Nxd4+ 38. Bxd4 Rxd4 39. Rxa6 Rb4 40. Ra3 Kf8 41. Kd3 Rb7 42. b4 Rxb4 43. Ra8+ Ke7 44. Ra7+ Kf6 45. Kc3 Rb8 46. b4 e5 47. Kc4 Rc8+ 48. Kb3 Rc1 49. Ra2 Ke6 50. b5 Kd6 51. Kb4 Rb1+ 52. Ka5 Kc7 53. Ka6 f6 54. h5 Rb3 55. Rc2+ Kb8 56. Kb6 Rd3 57. Rc7 Rd6+ 58. Rc6 Rd2 59. f4 Rd3 60. fxe5 fxe5 61. Re6 Kc8 62. g4 Rd4 63. g5 hxg5 64. Rxe5 g6 65. Kc5 |
| ECO A34 in 1972 play it! ivkov borislav defeats black's masic ljubomir in 84 moves | 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. a3 e5 6. Rb1 a5 7. e3 Nge7 8. Nge2 d6 9. O-O O-O 10. d3 Rb8 11. Bd2 b6 12. Qc2 Bb7 13. Nd5 Nxd5 14. Bxd5 Qd7 15. Qa4 Rfd8 16. Nc3 Ne7 17. Qxd7 Rxd7 18. Bxb7 Rbxb7 19. b4 axb4 20. axb4 cxb4 21. Nd5 b5 22. Bxb4 bxc4 23. Nxe7+ Rxe7 24. Bxd6 Red7 25. Rxb7 Rxb7 26. dxc4 Rd7 27. c5 Bf8 28. Bxf8 Kxf8 29. g4 Ke7 30. Kg2 Rd5 31. Rc1 Kd7 32. c6+ Kc7 33. Kf3 h5 34. gxh5 e4+ 35. Kxe4 Rxh5 36. f4 Rxh2 37. Ke5 Rh5+ 38. Kf6 Rf5+ 39. Kg7 g5 40. Rc4 g4 41. Rc1 Rh5 42. Kxf7 g3 |
| ECO A10 in 1969 play it! ivkov borislav defeats black's bogdanovic rajko in 65 moves | 1. c4 g6 2. d4 Bg7 3. Nf3 Nf6 4. g3 O-O 5. Bg2 d6 6. Nc3 Nc6 7. d5 Na5 8. b3 c6 9. Bb2 Rb8 10. Rc1 a6 11. O-O c5 12. Qc2 b5 13. Nd2 e5 14. e3 Nd7 15. f4 bxc4 16. bxc4 f5 17. Nd1 Nb7 18. Nf2 Qe7 19. Bc3 Nd8 20. Rce1 Nf7 21. Nb3 Nb6 22. Na5 Bd7 23. e4 Nd8 24. fxe5 dxe5 25. exf5 gxf5 26. Nd3 Nf7 27. Nc6 Bxc6 28. dxc6 e4 29. Bxg7 Kxg7 30. Rxf5 Nd6 31. c7 Qxc7 32. Qc3+ Kg6 33. Nf4+ |
| ECO A15 in 1961 play it! ivkov borislav defeats black's van scheltinga t in 111 moves | 1. c4 Nf6 2. d4 c6 3. Nc3 d5 4. Nf3 e6 5. cxd5 exd5 6. Bg5 Be7 7. Qc2 g6 8. e3 Bf5 9. Bd3 Bxd3 10. Qxd3 O-O 11. O-O Re8 12. Bxf6 Bxf6 13. b4 a6 14. a4 Nd7 15. b5 axb5 16. axb5 Nb6 17. bxc6 bxc6 18. Ra6 Qc7 19. Rb1 Nc4 20. Rxa8 Rxa8 21. Nd2 Nxd2 22. Qxd2 Ra3 23. Qc2 Qa5 24. Rc1 Ra1 25. Nb1 Qb5 26. g3 Kg7 27. Nd2 Rxc1+ 28. Qxc1 Be7 29. Qa1 Qe2 30. Qc3 g5 31. h3 h5 32. Nf1 Qb5 33. g4 hxg4 34. hxg4 Qe2 35. Qxc6 Qxg4+ 36. Ng3 Qe6 37. Qc7 Kg6 38. Qb8 Kg7 39. Kg2 Bf6 40. Qb1 Be7 41. Kf3 g4+ 42. Kg2 Bg5 43. Qc2 Qd7 44. Qd3 Qe6 45. Qb1 Qg6 46. Qh1 Qe6 47. Qh5 f6 48. Qh1 f5 49. Qb1 Kg6 50. Qb8 Bh4 51. Ne2 Qe4+ 52. Kg1 Bg5 53. Qd6+ Kf7 54. Qd7+ Be7 55. Nf4 g3 56. Nxd5 |
| ECO A22 in 1972 play it! ivkov borislav defeats black's uhlmann wolfgang in 85 moves | 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Re8 6. O-O e4 7. Ne1 Bxc3 8. dxc3 d6 9. Nc2 Be6 10. b3 Qc8 11. Bg5 Nbd7 12. Nd4 Bg4 13. f3 exf3 14. exf3 Bh5 15. Bh3 Qb8 16. Qd2 Bg6 17. Rae1 h6 18. Bh4 a6 19. Nf5 Qa7+ 20. Kg2 Kh8 21. Ne3 b5 22. Bxf6 Nxf6 23. Nd5 Nxd5 24. cxd5 Rad8 25. Bd7 Re5 26. Bc6 Qc5 27. Qd4 Qa3 28. Rxe5 dxe5 29. Qxe5 Qxa2+ 30. Rf2 Qa5 31. b4 Qb6 32. Qe7 Rd6 33. Re2 Kh7 34. h4 h5 35. Qf8 Bd3 36. Re8 Rf6 37. Qc5 Rd6 38. Qxb6 cxb6 39. Ra8 Bc4 40. Rxa6 Bxd5 41. Bxd5 Rxd5 42. Rxb6 Rd2+ 43. Kg1 |
| ECO A16 in 1969 play it! ivkov borislav defeats black's deze anton in 41 moves | 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Be7 7. Bg2 O-O 8. O-O Qc7 9. Ndb5 Qb8 10. Bf4 e5 11. Bg5 a6 12. Bxf6 gxf6 13. Na3 d6 14. Nd5 Be6 15. Qd2 Kg7 16. Rad1 Rd8 17. f4 Qa7+ 18. Kh1 Rab8 19. Rc1 Rbc8 20. Rc3 Rd7 21. f5 |
| ECO A17 in 1958 play it! ivkov borislav defeats black's janosevic dragol in 81 moves | 1. c4 Nf6 2. Nc3 e6 3. Nf3 c5 4. e3 d5 5. d4 Nc6 6. cxd5 exd5 7. Be2 Bg4 8. O-O Rc8 9. b3 Bxf3 10. Bxf3 cxd4 11. exd4 Bb4 12. Na4 O-O 13. Bb2 Re8 14. Rc1 Qe7 15. Rc2 Ne4 16. Nc5 Rcd8 17. Na4 f5 18. Qd3 a6 19. g3 Bd6 20. Re2 b5 21. Nc3 Bb8 22. a3 Ba7 23. Na2 Rd6 24. Bg2 Re6 25. Rc2 Qf6 26. Nb4 Nxb4 27. axb4 Qe7 28. Rc5 Bxc5 29. dxc5 Rd8 30. Bd4 f4 31. Rc1 fxg3 32. hxg3 Nf6 33. Bxf6 Qxf6 34. Bxd5 Kh8 35. Qf3 Qg5 36. Bxe6 Qxc1+ 37. Kg2 Qe1 38. Bd7 Qxb4 39. c6 Rf8 40. Qxf8+ Qxf8 41. c7 |
| ECO A34 in 1968 play it! ivkov borislav defeats black's kestler hans gun in 47 moves | 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 d6 6. O-O e5 7. a3 Nge7 8. Rb1 a5 9. d3 O-O 10. Bd2 f5 11. Qc1 Kh8 12. b3 Be6 13. Bg5 Qd7 14. Ne1 Rab8 15. Nc2 e4 16. Qd2 exd3 17. Qxd3 Ne5 18. Qd2 a4 19. Nxa4 b5 20. Nxc5 dxc5 21. Qxd7 Bxd7 22. Bxe7 Rfe8 23. Bd6 Rb6 24. Bxc5 |
| ECO A16 in 1972 play it! ivkov borislav defeats black's sloth jorn in 89 moves | 1. c4 Nf6 2. Nc3 c6 3. Nf3 d5 4. e3 e6 5. b3 Bd6 6. Bb2 O-O 7. d4 Nbd7 8. Bd3 dxc4 9. Bxc4 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Qxd8 Rxd8 13. f3 Be6 14. Bxe6 fxe6 15. Rd1 Nd5 16. Nxd5 Bxb2 17. Nf4 Kf7 18. Ke2 Bf6 19. Nd3 Rd5 20. Rd2 Rad8 21. Rhd1 e5 22. Rc2 e4 23. fxe4 Rg5 24. g3 Ke7 25. Rf1 g6 26. Rc4 Bg7 27. b4 a5 28. Rb1 a4 29. Rc2 Rh5 30. h4 Rb5 31. a3 Be5 32. g4 Bg3 33. Rh1 h5 34. g5 Rf8 35. Rh3 Bd6 36. Rf3 Rxf3 37. Kxf3 Ke6 38. Rc1 Kf7 39. Ke2 Be5 40. Rf1+ Kg7 41. Nxe5 Rxe5 42. Kd3 Re8 43. Rf6 Rd8+ 44. Ke2 Rd7 45. e5 |
| ECO A17 in 1968 play it! ivkov borislav defeats black's pfleger helmut in 139 moves | 1. c4 Nf6 2. Nc3 e6 3. d4 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. a3 Nc6 9. Qc2 Be7 10. Rd1 Qa5 11. Nd2 e5 12. Bg3 dxc4 13. Nxc4 Qc7 14. Nb5 Qb8 15. Nd4 Nd7 16. Bd3 g6 17. Be4 Qc7 18. Nb5 Qb8 19. O-O a6 20. Nd4 Qc7 21. Nxc6 bxc6 22. Qa4 f6 23. Qxc6 Qxc6 24. Bxc6 Ra7 25. b4 Nb8 26. Bd5+ Kg7 27. f4 exf4 28. Bxf4 Bb7 29. e4 Bxd5 30. exd5 Rc8 31. Na5 Rd7 32. Rc1 Rxc1 33. Rxc1 Bd6 34. Bxd6 Rxd6 35. Rc7+ Kh6 36. Nc6 Nd7 37. Ne7 Ne5 38. Kf2 a5 39. b5 a4 40. Rc6 Rd7 41. d6 Rb7 42. Rc7 Rxb5 43. d7 Rb2+ 44. Ke3 Nxd7 45. Rxd7 Rxg2 46. Rd2 Rg1 47. Nd5 Kg5 48. Nc3 f5 49. Nxa4 Ra1 50. Rd3 Kg4 51. Nc5 g5 52. Kd4 f4 53. Ke5 Re1+ 54. Ne4 f3 55. h3+ Kxh3 56. Rxf3+ Kh4 57. Rf2 Kh3 58. Rf3+ Kh4 59. Rf7 h6 60. Rf6 Kh5 61. Rf1 Re3 62. Kf5 Rh3 63. Rh1 Rxh1 64. Ng3+ Kh4 65. Nxh1 h5 66. a4 g4 67. Kf4 Kh3 68. Nf2+ Kh4 69. a5 g3 70. Kf3 |
| ECO A13 in 1983 play it! ivkov borislav defeats black's toth bela in 111 moves | 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 Nbd7 5. e3 Be7 6. a3 c5 7. cxd5 exd5 8. Be2 O-O 9. O-O b6 10. dxc5 Nxc5 11. b4 Nce4 12. Bb2 a6 13. Rc1 Bb7 14. Nxe4 dxe4 15. Qxd8 Rfxd8 16. Nd4 Bf8 17. Rc7 Rd7 18. Rfc1 Rad8 19. R7c2 Ne8 20. Nc6 Bxc6 21. Rxc6 Rd2 22. R6c2 a5 23. bxa5 bxa5 24. g4 g6 25. Bb5 Rxc2 26. Rxc2 Rd1+ 27. Kg2 Nd6 28. a4 Bg7 29. Ba3 h5 30. Be2 Rd5 31. Bxd6 Rxd6 32. gxh5 Bf8 33. Rc7 gxh5 34. Bxh5 Rf6 35. Bd1 Bb4 36. Bb3 Be1 37. Kf1 Bb4 38. Bd5 Bd6 39. Rc6 Kg7 40. h3 Bb4 41. Rxf6 Kxf6 42. Bxe4 Ke5 43. Bd3 f5 44. f4+ Kf6 45. h4 Bf8 46. Bb5 Kg6 47. Be8+ Kf6 48. h5 Bg7 49. Ke2 Bf8 50. Kd3 Bg7 51. Kc4 Bh6 52. Kb5 Bf8 53. h6 Bxh6 54. Kxa5 Bf8 55. Kb5 Ba3 56. a5 |
| ECO A10 in 1970 play it! ivkov borislav defeats black's nicevski r in 65 moves | 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. a3 Nf6 6. Rb1 a5 7. Nf3 O-O 8. O-O d6 9. Ne1 Ne8 10. Nc2 a4 11. d3 Bd7 12. Bd2 Ra7 13. Nb5 Ra6 14. Bc3 Qc8 15. Bxg7 Nxg7 16. Ne3 Bh3 17. Nd5 Bxg2 18. Kxg2 Ne8 19. e3 e6 20. Ndc3 Na7 21. Nxa7 Rxa7 22. Qf3 f5 23. b3 axb3 24. Rxb3 Rf7 25. Rfb1 Nf6 26. h3 g5 27. Rb6 Qc7 28. a4 g4 29. Qf4 gxh3+ 30. Kxh3 Ne8 31. Qf3 Nf6 32. a5 Ne8 33. Nb5 |
| ECO A17 in 1969 play it! ivkov borislav defeats black's csom istvan in 65 moves | 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. d4 Nbd7 5. cxd5 exd5 6. Bf4 c6 7. e3 Be7 8. Bd3 Nh5 9. Be5 Nxe5 10. Nxe5 g6 11. O-O Ng7 12. Rb1 O-O 13. b4 Bd6 14. Nf3 a6 15. a4 Bg4 16. Rb3 Re8 17. h3 Bd7 18. b5 axb5 19. axb5 Nf5 20. bxc6 bxc6 21. Re1 Bc7 22. Bf1 Qe7 23. Qc2 Qd6 24. g3 Ra3 25. Rxa3 Qxa3 26. Nxd5 Bd8 27. Nf4 Bf6 28. Nd3 Rb8 29. Nfe5 Be8 30. Rb1 Bxe5 31. Nxe5 Rd8 32. Bg2 c5 33. Qxc5 |
| ECO A16 in 1968 play it! ivkov borislav defeats black's zuidema coenraad in 45 moves | 1. c4 Nf6 2. Nc3 e5 3. g3 Bb4 4. Bg2 O-O 5. d3 Re8 6. Bd2 c6 7. Nf3 h6 8. O-O Bf8 9. e4 d6 10. d4 Bg4 11. d5 cxd5 12. cxd5 b5 13. Re1 a6 14. h3 Bxf3 15. Qxf3 Nbd7 16. Bf1 Qb8 17. b4 Rc8 18. a4 bxa4 19. Rxa4 Nb6 20. Rxa6 Nc4 21. Bxc4 Rxc4 22. b5 Rxa6 23. bxa6 |