| ECO A04 in 1991 play it! csom istvan defeats white's grillitsch karl in 64 moves | 1. Nf3 c5 2. c4 b6 3. g3 Bb7 4. Bg2 Nf6 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. Bg5 a6 10. Bxf6 Bxf6 11. Qf4 Ra7 12. Rad1 Be7 13. Ne4 Bxe4 14. Qxe4 O-O 15. Nd4 Rc7 16. b3 Re8 17. e3 Bf8 18. Qb1 Qc8 19. Rd2 Nd7 20. Rfd1 Nf6 21. a4 Rc5 22. Rc2 e5 23. Ne2 b5 24. Rdc1 bxc4 25. Rxc4 Qe6 26. Qd3 Rb8 27. e4 Nd7 28. b4 Rxc4 29. Rxc4 Nb6 30. Rc6 Qe8 31. Qc2 Nxa4 32. Qxa4 Rb6 |
| ECO A04 in 1988 play it! csom istvan defeats white's stepak yedael in 94 moves | 1. Nf3 c5 2. c4 b6 3. g3 Bb7 4. Bg2 Nf6 5. O-O e6 6. Nc3 Be7 7. b3 d6 8. Bb2 O-O 9. e3 a6 10. d4 cxd4 11. exd4 Re8 12. Re1 Nbd7 13. Qd3 Bf8 14. Rad1 Qc7 15. Nh4 Bxg2 16. Nxg2 Qb7 17. Ne3 b5 18. cxb5 axb5 19. b4 d5 20. a3 Rab8 21. Nc2 Rec8 22. Na1 Nb6 23. Nb3 Nc4 24. Bc1 Ra8 25. Nb1 Nd7 26. Re2 Ra7 27. f4 g6 28. Nc5 Qa8 29. Rf1 Nf6 30. g4 Nxg4 31. Rg2 Nh6 32. h4 Nf5 33. h5 Bg7 34. Nb3 Rac7 35. hxg6 hxg6 36. Rh2 Qa7 37. Rd1 Kf8 38. Kh1 Qb6 39. Rh7 Bf6 40. Qh3 Ke7 41. Rg1 Rg8 42. Rd1 Rcc8 43. Kg2 Rh8 44. Rxh8 Rxh8 45. Qc3 Rh4 46. Rd3 Qb8 47. Na5 Qh8 |
| ECO A04 in 1987 play it! csom istvan defeats white's schulze ulrich in 86 moves | 1. Nf3 c5 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. d4 cxd4 6. Qxd4 Nf6 7. Nc3 Bg7 8. Bg5 Nc6 9. Qd2 h6 10. Bxf6 Bxf6 11. O-O Bg7 12. Rfd1 d6 13. Nd4 Rc8 14. b3 O-O 15. Nxc6 Bxc6 16. Bxc6 Rxc6 17. Rac1 Qd7 18. Qe3 Rfc8 19. Nd5 e6 20. Nb4 Rc5 21. Nd3 R5c7 22. a4 Qc6 23. Qf4 Bf8 24. h4 Qb7 25. e4 a6 26. Ra1 Rd7 27. Qe3 Bg7 28. Rac1 Rdc7 29. Qf4 Bf8 30. Ra1 b5 31. cxb5 axb5 32. a5 Rc3 33. a6 Qa8 34. a7 Rxb3 35. Qe3 Bg7 36. Ra6 Bf8 37. Qd4 Rc4 38. Qb6 Rxd3 39. Rxd3 Rc1+ 40. Kg2 Qxe4+ 41. Rf3 Qe1 42. g4 Qh1+ 43. Kg3 g5 |
| ECO A04 in 1991 play it! csom istvan defeats white's strauss jurgen in 80 moves | 1. Nf3 c5 2. b3 b6 3. Bb2 Bb7 4. e3 e6 5. d4 Nf6 6. Nbd2 cxd4 7. exd4 Be7 8. Bd3 d6 9. O-O O-O 10. Re1 Nbd7 11. c4 Re8 12. Qc2 Rc8 13. Rac1 Bf8 14. Qb1 g6 15. Qa1 Rc7 16. a4 a5 17. Ne4 Nxe4 18. Bxe4 Bxe4 19. Rxe4 d5 20. Re2 Qa8 21. Nd2 Rec8 22. f4 Bg7 23. g4 Nf6 24. h3 Qb7 25. Rf1 Rd8 26. Kh2 Qb8 27. Kg2 Rcc8 28. Bc3 h5 29. g5 Ne8 30. c5 bxc5 31. Bxa5 Bxd4 32. Bc3 Bxc3 33. Qxc3 Qb7 34. Kh2 Rc7 35. Nf3 Rb8 36. f5 d4 37. Qd3 exf5 38. a5 Nd6 39. Nxd4 cxd4 40. Qxd4 Nc4 |
| ECO A05 in 1967 play it! csom istvan defeats white's bokor istvan in 70 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. b3 e6 6. Bb2 Be7 7. c4 O-O 8. Nc3 d5 9. cxd5 Nxd5 10. d4 Nxc3 11. Bxc3 Nd7 12. Rc1 Rc8 13. dxc5 Nxc5 14. Qd4 Bf6 15. Qxd8 Rfxd8 16. Bxf6 gxf6 17. Rfd1 Rxd1+ 18. Rxd1 Ba6 19. Rc1 Ne4 20. Rxc8+ Bxc8 21. e3 Nc3 22. a4 Ne2+ 23. Kh1 Kf8 24. Bf1 Nc1 25. Nd2 Ke7 26. Kg2 Bb7+ 27. Kh3 Bd5 28. b4 Na2 29. e4 Bb7 30. b5 Nc3 31. f3 Nxa4 32. Kg4 Bc8 33. Kf4 Bd7 34. e5 fxe5+ 35. Kxe5 Nc3 |
| ECO A05 in 1985 play it! csom istvan defeats white's kauppala pekka in 74 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 c6 7. Nc3 Qa5 8. e4 e5 9. Bd2 exd4 10. Nxd4 Qc5 11. Bf4 Ne8 12. Nb3 Qxc4 13. Nd5 Na6 14. Rc1 Qa4 15. Ne7+ Kh8 16. Re1 Be6 17. e5 dxe5 18. Bxe5 Qb4 19. Nxc6 bxc6 20. Rxc6 Rd8 21. Qc1 Nb8 22. Re4 Nxc6 23. Rxb4 Nxb4 24. Qc5 f6 25. Bd4 Nxa2 26. Qe7 Nc7 27. Qxc7 Bxb3 28. Qxa7 Nc1 29. Bf3 Bd5 30. Kg2 Bxf3+ 31. Kxf3 Nd3 32. Bc3 Rb8 33. Qd4 Rfd8 34. Qh4 h6 35. Kg2 Rf8 36. Qd4 Rbd8 37. Qb6 Ne5 |
| ECO A04 in 2002 play it! csom istvan defeats white's gerzhoy leonid in 102 moves | 1. Nf3 b6 2. e4 Bb7 3. Nc3 e6 4. d4 Bb4 5. Bd3 c5 6. Bd2 cxd4 7. Nxd4 Be7 8. Qe2 a6 9. e5 d6 10. exd6 Qxd6 11. Nf3 Nf6 12. O-O-O Nbd7 13. Ne4 Qc7 14. Nfg5 Ne5 15. Bc3 Nxe4 16. Nxe4 O-O 17. Kb1 Rfd8 18. f3 Nxd3 19. Rxd3 Rxd3 20. Qxd3 Rd8 21. Qe2 Rd5 22. Qf2 b5 23. a3 Qd8 24. Rc1 Qc7 25. Qg3 Qxg3 26. hxg3 h5 27. Rh1 f6 28. Nf2 Bd6 29. g4 Bc5 30. Ne4 hxg4 31. fxg4 Be7 32. g5 Rf5 33. gxf6 gxf6 34. Rh4 Rf1+ 35. Ka2 e5 36. Bb4 Bd5+ 37. b3 Bxb4 38. axb4 Bxe4 39. Rxe4 Rf2 40. Rg4+ Kf7 41. Kb2 f5 42. Rg5 Kf6 43. Rg8 f4 44. Kc3 Kf5 45. g4+ Ke4 46. g5 Rg2 47. g6 Ke3 48. Re8 e4 49. Re6 f3 50. Rxa6 f2 51. Rf6 Rxg6 |
| ECO A05 in 1968 play it! csom istvan defeats white's forintos gyozo in 108 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. d3 g6 5. O-O Bg7 6. Bd2 O-O 7. Qc1 d6 8. Bh6 Nbd7 9. h3 e5 10. e4 Re8 11. Nc3 d5 12. Nh2 dxe4 13. Ng4 Nxg4 14. hxg4 Nc5 15. b4 Ne6 16. Nxe4 Rb8 17. Bxg7 Kxg7 18. Qb2 Qd4 19. c3 Qxd3 20. Rad1 Qc4 21. Rfe1 Red8 22. Qc1 Rxd1 23. Qxd1 Bxe4 24. Rxe4 Qxc3 25. Qd5 Rd8 26. Qxe5+ Qxe5 27. Rxe5 Rd1+ 28. Bf1 Rd4 29. a3 Rxg4 30. Bh3 Rg5 31. Re3 Kf6 32. Rd3 Re5 33. Kf1 a5 34. f4 Rb5 35. bxa5 bxa5 36. Ke2 Nc5 37. Rc3 Rb2+ 38. Ke3 Rb3 39. Rxb3 Nxb3 40. Ke4 c6 41. Bg4 Ke7 42. Be2 Kd6 43. g4 f5+ 44. Ke3 fxg4 45. Bxg4 Nc5 46. f5 gxf5 47. Bxf5 h6 48. Bg4 Ne6 49. Ke4 Nc7 50. a4 Nd5 51. Kd4 Nf6 52. Bh3 h5 53. Bf5 h4 54. Bc8 Nd7 |
| ECO A05 in 1992 play it! csom istvan defeats white's kaenel hans in 76 moves | 1. Nf3 Nf6 2. e3 e6 3. b3 b6 4. Bb2 Bb7 5. Be2 Be7 6. O-O O-O 7. c4 c5 8. d4 d6 9. Nc3 cxd4 10. Qxd4 a6 11. Rad1 Nbd7 12. e4 Qc7 13. Kh1 Rfe8 14. Nd2 Bf8 15. f4 Rad8 16. f5 Ne5 17. fxe6 fxe6 18. Na4 Ned7 19. Qe3 Bc6 20. Nc3 Ne5 21. Qg3 Nfd7 22. Nf3 Nxf3 23. Bxf3 Nc5 24. Bg4 Qb7 25. a4 b5 26. axb5 axb5 27. cxb5 Bxb5 28. Nxb5 Qxb5 29. Be5 dxe5 30. Bxe6+ Rxe6 31. Qh3 Rf6 32. g4 Rxd1 33. Rxd1 Qe2 34. Rg1 Qxe4+ 35. Qg2 Qxg2+ 36. Kxg2 Rb6 37. Rb1 Rb4 38. Kf3 Kf7 |
| ECO A04 in 1990 play it! csom istvan defeats white's landenbergue cla in 80 moves | 1. Nf3 c5 2. c4 b6 3. g3 Bb7 4. Bg2 Nf6 5. O-O e6 6. b3 Be7 7. Nc3 d6 8. d4 cxd4 9. Qxd4 a6 10. Ba3 Nc6 11. Qd2 Qc7 12. Rac1 Na7 13. Rfd1 Rd8 14. Qf4 O-O 15. e4 Qb8 16. Qe3 Nd7 17. Rd2 Rfe8 18. e5 Nc8 19. exd6 Nxd6 20. Qe2 Nxc4 21. Bxe7 Nxd2 22. Bxd8 Nxf3+ 23. Bxf3 Bxf3 24. Qxf3 Rxd8 25. Rd1 Nf6 26. Rxd8+ Qxd8 27. b4 Qc8 28. a4 h6 29. b5 axb5 30. axb5 Qc4 31. h3 Nd5 32. Ne4 f5 33. Nd2 Qxb5 34. g4 Qb4 35. Nf1 fxg4 36. hxg4 Qf4 37. Qe2 Kf7 38. Nd2 Nf6 39. f3 Qd4+ 40. Kh2 b5 |
| ECO A05 in 1973 play it! csom istvan defeats white's segal alexandru in 74 moves | 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. O-O e6 5. c3 c5 6. d4 Nc6 7. Na3 a6 8. dxc5 Bxc5 9. Nc2 O-O 10. Be3 Be7 11. Nfd4 Qc7 12. a4 bxa4 13. Nxc6 Bxc6 14. Bxc6 Qxc6 15. Nd4 Qb7 16. Bc1 a3 17. b3 Rfc8 18. c4 d5 19. cxd5 Nxd5 20. Bxa3 Nc3 21. Qd3 Bf6 22. Rfe1 Qd5 23. Nc2 Qxb3 24. Rac1 Qa4 25. Bb2 Na2 26. Bxf6 Nxc1 27. Rxc1 gxf6 28. Qf3 Kg7 29. Rd1 Qxc2 30. Rd4 Qc1+ 31. Kg2 Qc6 32. Rg4+ Kh8 33. e4 f5 34. Rh4 Rg8 35. Qh5 Rg7 36. Kh3 Qb5 37. Kg2 fxe4 |
| ECO A04 in 1983 play it! csom istvan defeats white's lechtynsky jiri in 86 moves | 1. Nf3 c5 2. g3 b6 3. Bg2 Bb7 4. O-O Nf6 5. c4 g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 Na6 9. e3 d5 10. Ne5 Qb8 11. d4 dxc4 12. bxc4 Bxg2 13. Kxg2 cxd4 14. exd4 Qb7+ 15. Qf3 Qxf3+ 16. Kxf3 Rfc8 17. Rac1 Bh6 18. Rcd1 Bf8 19. Rfe1 Ne8 20. d5 Nd6 21. Ne4 Bg7 22. Nd2 Nc5 23. Ba1 Bxe5 24. Bxe5 Nd3 25. Re3 Nxe5+ 26. Rxe5 Kf8 27. Rde1 Rc7 28. R5e3 Rac8 29. Kg2 Rd7 30. Rc1 Rc5 31. Rec3 Rdc7 32. a4 a6 33. Kf1 b5 34. axb5 axb5 35. Ke2 bxc4 36. Ke3 Kg7 37. R3c2 h5 38. Kd4 Nb5+ 39. Ke3 c3 40. Ne4 Rxd5 41. Rb1 Na3 42. Rxc3 Rxc3+ 43. Nxc3 Re5+ |
| ECO A05 in 1968 play it! csom istvan defeats white's dunkelblum arthu in 38 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. c4 c5 6. b3 Bg7 7. Bb2 d6 8. d4 cxd4 9. Nxd4 Bxg2 10. Kxg2 Qc8 11. f3 h5 12. h4 d5 13. cxd5 Nxd5 14. Qd3 O-O 15. e4 Nb4 16. Qd2 Rd8 17. Qxb4 Bxd4 18. Rc1 Bxb2 19. Rxc8 Rxc8 |
| ECO A05 in 1983 play it! csom istvan defeats white's gurevich dmitry in 62 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Nbd7 5. cxd5 exd5 6. Bf4 c6 7. e3 Nh5 8. Bg3 g6 9. Bd3 Nxg3 10. hxg3 Bg7 11. Qc2 O-O 12. O-O-O Re8 13. Kb1 Nf8 14. e4 dxe4 15. Nxe4 Be6 16. Neg5 Bd5 17. Bc4 h6 18. Nh3 Be4 19. Bd3 Bxf3 20. gxf3 Ne6 21. Bc4 Qf6 22. Bxe6 Rxe6 23. Nf4 Rd6 24. Rd3 Rxd4 25. Rxd4 Qxd4 26. Rd1 Qf6 27. Rd7 Re8 28. a3 Re1+ 29. Ka2 g5 30. Nd3 Qe6+ 31. Qb3 Ra1+ |
| ECO A05 in 1979 play it! csom istvan defeats white's vadasz l in 57 moves | 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 a6 8. Bd2 e5 9. d5 Nd4 10. Ne1 b5 11. e3 Nf5 12. cxb5 axb5 13. Nc2 Bd7 14. Qe2 Qb8 15. Nb4 Qb7 16. a3 Rfe8 17. Rac1 e4 18. Rfd1 Re5 19. Be1 Ne7 20. h3 h5 21. Qc2 Qc8 22. Nxe4 Nxe4 23. Bxe4 Bxh3 24. Bc3 Qg4 25. Bh1 Nf5 26. Nd3 Nxg3 27. Nxe5 Nxh1+ 28. Kxh1 Qh4 29. Qe4 |
| ECO A05 in 1983 play it! csom istvan defeats white's ftacnik lubomir in 116 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Nbd7 5. Bg5 Be7 6. e3 O-O 7. Qc2 h6 8. h4 c5 9. O-O-O cxd4 10. Nxd4 Nb6 11. f3 Bd7 12. g4 Rc8 13. Bxf6 Bxf6 14. g5 Bxd4 15. Rxd4 h5 16. f4 Qe7 17. Qd1 Nxc4 18. Bxc4 Rxc4 19. Qxh5 Rfc8 20. Qd1 Rxc3+ 21. bxc3 Qa3+ 22. Kd2 Rxc3 23. Qb1 Rxe3 24. Qb4 Bb5 25. Qxa3 Rxa3 26. Rb4 Rxa2+ 27. Kc3 Bc6 28. Kd4 a5 29. Rb3 Ra4+ 30. Ke5 Re4+ 31. Kd6 Rxf4 32. h5 Rg4 33. g6 d4 34. Rd1 fxg6 35. hxg6 Rxg6 36. Rxd4 Kf7 37. Rf4+ Rf6 38. Rg4 Rf5 39. Rbg3 Rd5+ 40. Kc7 g5 41. Rxg5 Rxg5 42. Rxg5 a4 43. Kd6 Bd5 44. Rg3 b5 45. Kc5 Bc4 46. Rf3+ Kg6 47. Kd4 Kg5 48. Rh3 Kf4 49. Re3 Bd5 50. Rh3 b4 51. Kc5 b3 52. Rh4+ Ke3 53. Rxa4 Kd2 54. Rf4 b2 55. Rf2+ Kc3 56. Rf1 Kc2 57. Rf2+ Kb3 58. Rf1 Ka2 |
| ECO A05 in 1981 play it! csom istvan defeats white's zichichi alvise in 82 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Be7 5. Bg5 Nbd7 6. e3 O-O 7. Rc1 a6 8. cxd5 exd5 9. Bd3 c6 10. O-O Re8 11. Qc2 Nf8 12. Bxf6 Bxf6 13. h3 Be7 14. Qb1 Bd6 15. Rce1 Be6 16. a3 Rc8 17. Nd2 Rc7 18. f4 Bc8 19. Nf3 Rce7 20. Kf2 Re6 21. g4 c5 22. g5 Be7 23. h4 cxd4 24. Nxd4 Rb6 25. Qc2 Bc5 26. Nce2 Qe7 27. Ng3 Bxd4 28. exd4 Qd8 29. Rxe8 Qxe8 30. Re1 Qd8 31. f5 Rc6 32. Qb3 h6 33. Re5 hxg5 34. hxg5 Qxg5 35. Qxd5 Bd7 36. Re3 Qf4+ 37. Rf3 Qd2+ 38. Ne2 Rc1 39. Bc4 Rxc4 40. Qxc4 Bb5 41. Rd3 Qxe2+ |
| ECO A05 in 1973 play it! csom istvan defeats white's tatai stefano 1 in 58 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 Nc6 7. Nc3 a6 8. d5 Na5 9. b3 Rb8 10. Bb2 c5 11. Nd2 b5 12. Qc2 bxc4 13. bxc4 Bh6 14. Ncb1 Bd7 15. Bc3 Qc7 16. Na3 Rb4 17. Nb3 Ba4 18. Qd3 Nxb3 19. Bxb4 Nc1 20. Rfxc1 cxb4 21. e3 bxa3 22. Qxa3 Bd7 23. c5 dxc5 24. Rxc5 Qe5 25. Rac1 Rb8 26. Qxa6 Bxe3 27. fxe3 Qxe3+ 28. Kh1 Ne4 29. R5c2 Bb5 |
| ECO A04 in 2001 play it! csom istvan defeats white's frantzke helmut in 78 moves | 1. Nf3 c5 2. g3 b5 3. Bg2 Bb7 4. d3 e6 5. O-O d6 6. e4 Be7 7. Nbd2 Nf6 8. Re1 Nbd7 9. c3 O-O 10. Nf1 Qc7 11. Qe2 c4 12. dxc4 bxc4 13. e5 dxe5 14. Nxe5 Bxg2 15. Nxd7 Nxd7 16. Kxg2 Rfc8 17. h4 Rab8 18. f4 Rb5 19. Ne3 Nb6 20. a4 Ra5 21. Qc2 Qc6+ 22. Kh2 Rxa4 23. Rxa4 Nxa4 24. f5 e5 25. Ng4 f6 26. h5 Nc5 27. h6 Nd3 28. Rf1 Qe4 29. Ne3 Bc5 30. Ng2 Bb6 31. Nh4 Rd8 32. hxg7 Kxg7 33. Qd2 Nxc1 34. Qxc1 Qe2+ 35. Kh3 Rd2 36. Qe1 Qh2+ 37. Kg4 Bf2 38. Rxf2 Qxf2 39. Qe4 Qe2+ |
| ECO A05 in 1977 play it! csom istvan defeats white's liersch a in 76 moves | 1. Nf3 Nf6 2. g3 b5 3. Bg2 Bb7 4. c3 e6 5. d3 Be7 6. O-O c5 7. e4 d6 8. Nbd2 Nbd7 9. Qe2 O-O 10. Rd1 Qc7 11. d4 cxd4 12. Nxd4 a6 13. N2b3 Rab8 14. a4 bxa4 15. Rxa4 Nb6 16. Ra1 Nc4 17. Nd2 Ne5 18. c4 Qb6 19. Nc2 Rfc8 20. b3 Nc6 21. Bb2 Ne8 22. h4 Bf6 23. Bxf6 Nxf6 24. Qd3 Rd8 25. Qe3 Qxe3 26. Nxe3 Nb4 27. Ra4 Bc6 28. Ra5 Nd7 29. Rc1 Nc5 30. Rc3 Kf8 31. Kf1 Rb6 32. Ke2 Rdb8 33. Bf3 Bb7 34. e5 Bxf3+ 35. Nxf3 Nc6 36. Ra3 dxe5 37. Nc2 Rxb3 38. Rcxb3 Rxb3 |