| ECO A05 in 1973 play it! cobo arteaga eld defeats white's de castro edgar in 78 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc7 7. O-O e5 8. d3 Bd7 9. Be3 Be7 10. Qd2 O-O 11. Ne1 Rc8 12. Rc1 b6 13. f4 exf4 14. Bxf4 Ne6 15. Be3 Ncd4 16. Nd5 Bc6 17. Nxe7+ Qxe7 18. Bxc6 Nxc6 19. Rc4 Rfe8 20. Re4 Rcd8 21. Nf3 Qd7 22. Rh4 f6 23. Qc2 Nf8 24. Bc1 Qe6 25. Qa4 Qd7 26. Rf2 Ng6 27. Qc4+ Kh8 28. Re4 Nce5 29. Nxe5 Nxe5 30. Qc3 Nc6 31. Ref4 Nd4 32. Qd2 Ne6 33. Rh4 Ng5 34. Rg2 Qf5 35. Qd1 Nh3+ 36. Rxh3 Qxh3 37. Bf4 Qd7 38. Qc2 Qd4+ 39. Kf1 c4 |
| ECO A05 in 1967 play it! cobo arteaga eld defeats white's flesch janos in 64 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d3 d5 5. O-O O-O 6. Nbd2 c5 7. e4 Nc6 8. c3 dxe4 9. dxe4 Qc7 10. Re1 Rd8 11. Qe2 e5 12. a4 h6 13. Nf1 Be6 14. N1d2 Rd7 15. Nc4 Rad8 16. h3 a6 17. Be3 b5 18. axb5 axb5 19. Na3 b4 20. Nc4 Rd3 21. Nfd2 bxc3 22. bxc3 Rxc3 23. Bxc5 Rxd2 24. Qxd2 Rxc4 25. Be3 Kh7 26. Bf1 Nd4 27. Qd1 Rb4 28. Rc1 Qd7 29. Bg2 Bxh3 30. Qd2 Ra4 31. f3 Be6 32. Kf2 Ra2 |
| ECO A16 in 1964 play it! cobo arteaga eld defeats white's pachman ludek in 74 moves | 1. c4 Nf6 2. Nc3 e5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Ne7 6. Nf3 Nbc6 7. b4 a6 8. O-O Nf5 9. Bb2 Be7 10. d3 Be6 11. a3 f6 12. e3 O-O 13. Qc2 Qd7 14. Rfd1 Rfd8 15. d4 exd4 16. exd4 Nfxd4 17. Nxd4 Nxd4 18. Rxd4 Qxd4 19. Nd5 Qg4 20. Nxe7+ Kf7 21. f3 Qh5 22. g4 Qg5 23. Nf5 Bxf5 24. Qxf5 Qe3+ 25. Kh1 Rd2 26. Bxf6 gxf6 27. Qxh7+ Ke6 28. g5 Rad8 29. Rf1 Qxg5 30. Re1+ Kd6 31. Qe7+ Kc6 32. Rc1+ Kb6 33. Qxc7+ Ka7 34. Bf1 Rd1 35. Rxd1 Rxd1 36. Qc4 Qe3 37. f4 Qf2 |
| ECO B41 in 1962 play it! cobo arteaga eld defeats white's ortega r cub in 100 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Bd3 Nc6 7. Nxc6 dxc6 8. O-O e5 9. Qe2 Bc5 10. h3 O-O 11. Nc3 b5 12. Rd1 Qe7 13. Bd2 Be6 14. Rac1 Rfd8 15. Bg5 Bd4 16. b3 h6 17. Bh4 g5 18. Bg3 b4 19. Nb1 Nd7 20. Kh2 Nf8 21. Nd2 Ng6 22. Nf3 c5 23. Nxd4 Rxd4 24. Bc2 Rad8 25. f3 Nf4 26. Qe1 Bc8 27. Bf2 Rxd1 28. Rxd1 Rxd1 29. Qxd1 Bb7 30. a3 a5 31. axb4 axb4 32. Qa1 f6 33. Qa7 Ne6 34. Bd1 Qc7 35. h4 Kf8 36. f4 gxf4 37. Bh5 Ke7 38. Bg4 Nd4 39. Bf5 Nxb3 40. Qa4 Nd4 41. Bg6 Bc6 42. Qd1 Qb8 43. Bxd4 exd4 44. Qh5 Qd6 45. Qxh6 f3+ 46. g3 f2 47. Kg2 d3 48. Qd2 Qd4 49. Qxf2 d2 50. Qxd4 cxd4 |
| ECO B23 in 1972 play it! cobo arteaga eld defeats white's zichichi alvise in 100 moves | 1. e4 c5 2. Nc3 Nc6 3. Nge2 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Nxc3 7. bxc3 e6 8. O-O Be7 9. d4 O-O 10. f4 Qc7 11. Kh1 Rd8 12. d5 exd5 13. f5 Bf6 14. Nf4 Bxc3 15. Rb1 Ne7 16. Qh5 b6 17. Rb3 Be5 18. g4 Rd6 19. Ne6 Rxe6 20. fxe6 Bxe6 21. Rh3 h6 22. Rhf3 Rf8 23. g5 hxg5 24. Bxg5 Ng6 25. Bh3 Qc6 26. Bxe6 Qxe6 27. Rh3 f5 28. Bd2 f4 29. Rg1 Rf6 30. Rg2 Kf7 31. c3 Qf5 32. Rxg6 Qxg6 33. Qxe5 Qe4+ 34. Qxe4 dxe4 35. Kg2 Rg6+ 36. Kf1 e3 37. Bc1 Ke6 38. Rh5 Rg4 39. c4 g5 40. Rh7 Kf5 41. Re7 Rh4 42. Kg2 g4 43. Bxe3 fxe3 44. Rxe3 g3 45. Rf3+ Ke5 46. hxg3 Rxc4 47. Ra3 a5 48. Kh3 Rc2 49. Rb3 Rxa2 50. Rxb6 c4 |
| ECO B99 in 1962 play it! cobo arteaga eld defeats white's matanovic in 56 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. g4 b5 11. Bxf6 Nxf6 12. g5 Nd7 13. a3 Bb7 14. Bh3 b4 15. axb4 Qc4 16. Rhe1 Rb8 17. b5 axb5 18. Bf1 Qc7 19. Ndxb5 Qa5 20. Nxd6+ Bxd6 21. Rxd6 Nc5 22. Qe2 Ke7 23. Qb5 Qc7 24. Red1 Bd5 25. R1xd5 Rxb5 26. Nxb5 Qa5 27. Rd4 Qa1+ 28. Kd2 Qxf1 |
| ECO B20 in 1963 play it! cobo arteaga eld defeats white's gadia olicio in 116 moves | 1. e4 c5 2. d3 Nc6 3. g3 d5 4. Nd2 Nf6 5. Bg2 e6 6. Ne2 Be7 7. O-O O-O 8. h3 Qc7 9. g4 dxe4 10. dxe4 b6 11. Ng3 Ba6 12. Re1 Rfd8 13. Qf3 Nd4 14. Qc3 Rac8 15. Nf3 b5 16. b3 b4 17. Qb2 Nb5 18. Ne5 Bd6 19. Nd3 Bxg3 20. fxg3 Qxg3 21. Bf4 Qh4 22. Ne5 Nd7 23. Nf3 Qe7 24. e5 Nc3 25. Bg5 f6 26. exf6 Nxf6 27. a3 Qd6 28. axb4 cxb4 29. Ne5 Rf8 30. Kh1 Rc5 31. Rxa6 Qxa6 32. Bxf6 Rxf6 33. Nd7 Qd6 34. Nxf6+ gxf6 35. Qc1 Re5 36. Bf3 Rxe1+ 37. Qxe1 e5 38. Kg2 Qd4 39. h4 Qf4 40. Qf1 Qd4 41. Qa6 e4 42. Be2 Nxe2 43. Qxe2 Kg7 44. Kh3 Kg6 45. Kg2 Kg7 46. Kh3 h5 47. gxh5 Kh6 48. Kg2 f5 49. Kh3 e3 50. Qa6+ Kxh5 51. Qe6 Qxh4+ 52. Kg2 Qe4+ 53. Qxe4 fxe4 54. Kg3 Kg5 55. Kg2 Kf4 56. Kf1 Kf3 57. Ke1 e2 58. c4 bxc3 |
| ECO B63 in 1962 play it! cobo arteaga eld defeats white's farboud m in 104 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 h6 8. Be3 Ng4 9. O-O-O Be7 10. f4 Nxe3 11. Qxe3 Qc7 12. Kb1 Bd7 13. f5 a6 14. fxe6 fxe6 15. Bc4 Nxd4 16. Qxd4 Rg8 17. e5 d5 18. Bxd5 exd5 19. Nxd5 Qc5 20. Qxc5 Bxc5 21. Nc7+ Ke7 22. Nxa8 Rxa8 23. Rhe1 Bc6 24. g3 Rf8 25. Rd2 Rf2 26. Rxf2 Bxf2 27. Re2 Bb6 28. Kc1 Ke6 29. Kd2 Bd4 30. c3 Bxe5 31. Ke3 a5 32. Re1 a4 33. a3 Kf5 34. Kf2 Bd6 35. Kf1 Bc5 36. h3 h5 37. Rd1 Be3 38. Ke2 Ke4 39. Rd8 Bb5+ 40. Ke1 Kf3 41. Rd5 Bc6 42. Rxh5 Kxg3 43. Rh7 Bh6 44. Rh8 Kxh3 45. Kd1 Kg4 46. Kc2 Be4+ 47. Kd1 Bf4 48. Re8 Kf3 49. Ra8 Bc6 50. Kc2 g5 51. b3 axb3+ 52. Kxb3 g4 |
| ECO B92 in 1960 play it! cobo arteaga eld defeats white's gabriel maurice in 74 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Nbd7 8. Be3 Be7 9. O-O b5 10. a3 Bb7 11. Bf3 O-O 12. Qe2 Qc7 13. Rfd1 Rac8 14. Rac1 Rfd8 15. h3 Nb6 16. Bxb6 Qxb6 17. Nd5 Nxd5 18. exd5 Bg5 19. Rb1 Rc4 20. c3 f5 21. Qc2 Rf8 22. Nd2 Rh4 23. g3 Rxh3 24. Kg2 Rh6 25. Nf1 e4 26. Be2 f4 27. Bg4 f3+ 28. Kg1 e3 29. Rd4 Bf6 30. fxe3 Bxd4 31. cxd4 f2+ 32. Kg2 Bxd5+ 33. e4 Qxd4 34. Nd2 Qxd2 35. Qxd2 Bxe4+ 36. Kf1 Rh1+ 37. Ke2 Rxb1 |
| ECO B30 in 1976 play it! cobo arteaga eld defeats white's castro rojas osc in 84 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 Nd4 6. Bf1 Nec6 7. d3 d6 8. Nbd2 Be7 9. c3 Nxf3+ 10. Nxf3 e5 11. h3 O-O 12. d4 cxd4 13. cxd4 exd4 14. Nxd4 Nxd4 15. Qxd4 Bf6 16. Qb4 a5 17. Qb5 a4 18. Rb1 Be6 19. b3 axb3 20. axb3 Qa5 21. Rd1 Qxb5 22. Bxb5 d5 23. exd5 Rfd8 24. Bb2 Rxd5 25. Rxd5 Bxd5 26. Bxf6 gxf6 27. b4 Ra3 28. Rd1 Bc6 29. Bc4 Ra4 30. Rd4 Kg7 31. Bd3 Ra1+ 32. Kh2 Rd1 33. Kg3 f5 34. Kf4 Bxg2 35. h4 Be4 36. Ke3 Rxd3+ 37. Rxd3 Bxd3 38. Kxd3 Kg6 39. Kc4 Kh5 40. Kb5 Kxh4 41. Kb6 Kg4 42. Kxb7 h5 |
| ECO B47 in 1963 play it! cobo arteaga eld defeats white's ortega r cub in 68 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Nxc6 bxc6 7. Bd3 Nf6 8. O-O d5 9. Qe2 Be7 10. Bd2 O-O 11. Rae1 g6 12. Kh1 a5 13. b3 Bb7 14. a4 Rfe8 15. f4 dxe4 16. Nxe4 Nxe4 17. Bxe4 Ba6 18. c4 Rab8 19. Rf3 Bb4 20. Bxb4 Rxb4 21. Bc2 Rd8 22. h4 Rd4 23. Qf2 c5 24. Re5 Bb7 25. Rfe3 Rb6 26. f5 exf5 27. Bxf5 Rd1+ 28. Kh2 gxf5 29. h5 Re6 30. Rg3+ Kf8 31. Rxc5 Qe7 32. Qxf5 Ree1 33. Rg4 Rh1+ 34. Kg3 Qe3+ |
| ECO B65 in 1970 play it! cobo arteaga eld defeats white's peretz malkiel i in 80 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4 Qa5 11. Kb1 h6 12. Bh4 e5 13. Qd2 exf4 14. Nd5 Qd8 15. Nxe7+ Qxe7 16. Bxf6 Qxf6 17. Bd3 Qe5 18. Rdf1 g5 19. h4 Bg4 20. hxg5 hxg5 21. g3 fxg3 22. Rfg1 f6 23. Qe3 Kg7 24. Rxg3 Be6 25. Rh5 Rh8 26. Rxh8 Rxh8 27. Rg1 b6 28. Qc1 Rh2 29. b3 a5 30. Rf1 g4 31. Qe3 b5 32. Qa7+ Kg6 33. Qxa5 g3 34. Qe1 g2 35. Rg1 Kf7 36. Qf2 Qc5 37. Qxc5 dxc5 38. Bf1 Rh1 39. Rxg2 Rxf1+ 40. Kb2 Re1 |
| ECO B57 in 1974 play it! cobo arteaga eld defeats white's fernandez juan c in 81 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 e6 7. Be3 Be7 8. Qe2 O-O 9. O-O-O a6 10. Rhg1 Nxd4 11. Bxd4 b5 12. Bb3 Bb7 13. e5 dxe5 14. Bxe5 Qb6 15. g4 Rfd8 16. g5 Rxd1+ 17. Rxd1 Ne8 18. Rd7 Bxg5+ 19. f4 Bc8 20. Rd3 Be7 21. Ne4 Bb7 22. Bd4 Qc7 23. Be5 Qc6 24. Ng5 Rd8 25. c3 Rxd3 26. Qxd3 g6 27. Bd1 Qd5 28. Qxd5 Bxd5 29. Nf3 f6 30. Bb8 Kf7 31. b3 h6 32. Nh4 Bc5 33. Kd2 Bf2 34. Nf3 g5 35. fxg5 hxg5 36. Be2 e5 37. a4 Bxb3 38. axb5 axb5 39. Bxb5 Ng7 40. Ke2 Bc5 41. Nxe5+ |
| ECO C88 in 1960 play it! cobo arteaga eld defeats white's gonzalez juan in 80 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Bb7 9. c3 d5 10. exd5 Nxd5 11. d3 Qd6 12. axb5 axb5 13. Rxa8 Rxa8 14. Na3 Qd7 15. Nxb5 Ra1 16. Qe2 Rxc1 17. Rxc1 Nf4 18. Qf1 Na5 19. Bxf7+ Kf8 20. c4 Bxf3 21. gxf3 Kxf7 22. Re1 Nc6 23. Re4 Bc5 24. b4 Nh3+ 25. Kg2 Bxb4 26. d4 exd4 27. Nxc7 Qxc7 28. Kxh3 Qd7+ 29. Kg2 d3 30. c5 Qd5 31. Rf4+ Kg8 32. Qa1 Ba5 33. Rg4 Qf7 34. Ra4 d2 35. Rg4 h6 36. h4 Qd7 37. Qa2+ Kh8 38. Rf4 d1=Q 39. Rf8+ Kh7 40. Qg8+ Kg6 |
| ECO C55 in 1976 play it! cobo arteaga eld defeats white's triana justo in 44 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Bc5 5. b4 Bxb4 6. c3 Be7 7. d4 d6 8. Ng5 O-O 9. f4 h6 10. Nxf7 Rxf7 11. fxe5 dxe5 12. Bxf7+ Kxf7 13. d5 Na5 14. Qh5+ Kg8 15. Qg6 Qf8 16. Bxh6 Qf7 17. Qg3 Nc4 18. Nd2 Bc5+ 19. Kh1 Nxd2 20. Bxd2 Nxe4 21. Qd3 Qg6 22. Qc4 b5 |
| ECO C25 in 1960 play it! cobo arteaga eld defeats white's persitz rafael in 52 moves | 1. e4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. O-O O-O 10. Bg5 c6 11. Qf3 Be7 12. Rae1 Be6 13. Ne2 Nd7 14. Bxe7 Qxe7 15. Nd4 Rae8 16. Nxc6 Qc5 17. Ne5 Nxe5 18. Rxe5 Qd4 19. Rh5 g6 20. c3 Qa4 21. Re5 Qxa2 22. Qf6 Qxb2 23. h4 Qxc3 24. h5 Bg4 25. f4 Rxe5 26. h6 Qd4+ |
| ECO C44 in 1976 play it! cobo arteaga eld defeats white's nogueiras jesus in 40 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O Nf6 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 g6 10. Qg4 Qd5 11. Rxe6+ fxe6 12. Nxe6 Kf7 13. Ng5+ Kxf6 14. Nd2 Rae8 15. Nde4+ Kg7 16. Bd2 h6 17. Qf4 Rhf8 18. Ne6+ Rxe6 19. Qxh6+ Kg8 20. Ng5 Qd7 |
| ECO B06 in 1970 play it! cobo arteaga eld defeats white's ramirez p in 50 moves | 1. e4 g6 2. d4 d6 3. Nf3 Nf6 4. Nbd2 Bg7 5. Be2 O-O 6. O-O c6 7. Re1 Qc7 8. c3 Nbd7 9. a4 e5 10. Bf1 Re8 11. Nc4 exd4 12. Bf4 Ne5 13. cxd4 Nxc4 14. Bxc4 Rxe4 15. Rxe4 Nxe4 16. Qe2 Qe7 17. Bxd6 Qxd6 18. Qxe4 Bd7 19. Ng5 Be8 20. Re1 Bf6 21. Qf3 Kg7 22. Re6 Qxd4 23. Re4 Qxb2 24. h4 h6 25. Rf4 hxg5 |
| ECO D04 in 1960 play it! cobo arteaga eld defeats white's lundin erik in 124 moves | 1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. c4 c6 5. Nc3 Bg7 6. h3 O-O 7. Be2 Nbd7 8. cxd5 Nxd5 9. Nxd5 cxd5 10. Qb3 Nf6 11. O-O Ne4 12. Nd2 Nf6 13. Nb1 Qb6 14. Qxb6 axb6 15. Nc3 Bd7 16. Bd2 Rfc8 17. Rfc1 e6 18. a3 Bf8 19. f3 Ne8 20. e4 dxe4 21. fxe4 Nd6 22. Be3 Nc4 23. Bxc4 Rxc4 24. d5 b5 25. Rd1 Bg7 26. dxe6 Bxe6 27. Nxb5 Rxe4 28. Bf2 Re2 29. Bd4 Bxd4+ 30. Nxd4 Rxb2 31. Nxe6 fxe6 32. Rac1 Rf8 33. Rd7 Rf7 34. Rcc7 Rxd7 35. Rxd7 h5 36. h4 Kf8 37. Kh2 Rb3 38. Kg1 b6 39. Rb7 Rxa3 40. Rxb6 Kf7 41. Kf2 Kf6 42. g3 Kf5 43. Rb5+ e5 44. Rb6 Ra8 45. Rb4 Ra6 46. Kf3 Re6 47. Rb5 Ra6 48. Rc5 Ra3+ 49. Kf2 Kg4 50. Rc6 Rf3+ 51. Ke2 Rxg3 52. Rxg6+ Kxh4 53. Re6 Rg5 54. Kf3 Rf5+ 55. Ke4 Kg4 56. Ra6 h4 57. Ra1 Rf4+ 58. Kxe5 Rb4 59. Rg1+ Kf3 60. Rg8 h3 61. Rh8 Kg3 62. Kf5 h2 |
| ECO D32 in 1978 play it! cobo arteaga eld defeats white's konc vili in 56 moves | 1. d4 d5 2. c4 e6 3. Nc3 c5 4. Nf3 Nc6 5. cxd5 exd5 6. dxc5 d4 7. Na4 Bxc5 8. Nxc5 Qa5+ 9. Bd2 Qxc5 10. g3 Nf6 11. a3 O-O 12. Bg2 Bf5 13. O-O Be4 14. Rc1 Qd5 15. b4 b6 16. Qa4 Ne5 17. Ne1 d3 18. Qd1 Bxg2 19. Nxg2 dxe2 20. Qxe2 Nf3+ 21. Kh1 Nxd2 22. Rfd1 Rad8 23. Rc2 Nfe4 24. f3 Qb3 25. Rcxd2 Nxd2 26. Rxd2 Qb1+ 27. Ne1 Rxd2 28. Qxd2 Re8 |