| ECO A11 in 1995 play it! csom istvan defeats black's metz hartmut in 53 moves | 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. d4 Nbd7 6. Qc2 Be7 7. b3 O-O 8. Bd3 b6 9. O-O Bb7 10. Bb2 Rc8 11. Rad1 Qc7 12. Ne5 Nxe5 13. dxe5 Ng4 14. Bxh7+ Kh8 15. Qe2 f5 16. h3 Kxh7 17. hxg4 fxg4 18. Qxg4 Rf5 19. Ne2 Rcf8 20. Nf4 R8f7 21. Qg6+ Kg8 22. Nxe6 Qc8 23. cxd5 cxd5 24. Rc1 Qb8 25. f4 d4 26. Nxd4 Be4 27. Nxf5 |
| ECO A20 in 1992 play it! csom istvan defeats black's zafirakis ioanni in 77 moves | 1. c4 e5 2. g3 Nc6 3. Bg2 g6 4. Nc3 Bg7 5. d3 Nf6 6. e4 d6 7. Nge2 O-O 8. O-O Nd4 9. Nxd4 exd4 10. Ne2 Nd7 11. h3 a5 12. b3 Kh8 13. Rb1 Nc5 14. Bb2 Ne6 15. a3 c5 16. Bc1 Ra7 17. b4 axb4 18. axb4 b6 19. Kh2 f5 20. exf5 Rxf5 21. bxc5 dxc5 22. Qb3 Raf7 23. Qxb6 Qxb6 24. Rxb6 Rxf2 25. Rxf2 Rxf2 26. Nf4 Nf8 27. Rb8 Bd7 28. Ba3 g5 29. Bxc5 gxf4 30. Rxf8+ Bxf8 31. Bxd4+ Bg7 32. Bxf2 fxg3+ 33. Bxg3 Bd4 34. Be4 Kg7 35. Kg2 Be6 36. h4 h6 37. Bf2 Bc3 38. c5 Ba5 39. d4 |
| ECO A13 in 1996 play it! csom istvan defeats black's kozlov oleg in 69 moves | 1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. b3 Be7 5. Bb2 O-O 6. Be2 c5 7. O-O Nc6 8. cxd5 Nxd5 9. a3 b6 10. d3 Bb7 11. Nbd2 Bf6 12. Qc2 Bxb2 13. Qxb2 Qf6 14. Qxf6 gxf6 15. Rfc1 Rfd8 16. Rab1 Rac8 17. Rb2 Nde7 18. Ne1 Ba6 19. f4 e5 20. g3 exf4 21. gxf4 Nd5 22. Kf2 Rc7 23. Nf1 Bb5 24. Ng3 Re7 25. Ng2 Ree8 26. d4 Bxe2 27. Nxe2 Nce7 28. dxc5 Nf5 29. Rd1 bxc5 30. Rbd2 Rc8 31. Ng1 Rf8 32. Rd3 Rc7 33. Rd4 a5 34. Nh4 Nxh4 35. e4 |
| ECO A30 in 1987 play it! csom istvan defeats black's sahu sekhar in 65 moves | 1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. Ng5 Nc6 11. Qf4 Qc7 12. b3 Na5 13. Nge4 Rd8 14. Ba3 Nh5 15. Bxd6 Nxf4 16. Bxc7 Rxd1+ 17. Rxd1 Nxg2 18. Bxb6 h5 19. Bxa5 h4 20. Kxg2 f5 21. f3 fxe4 22. Nxe4 h3+ 23. Kf2 O-O 24. Ke1 Bc5 25. b4 Be3 26. Rd3 Bg1 27. Rd8 Rxd8 28. Bxd8 Kf7 29. b5 Ke8 30. Bc7 Kd7 31. Be5 g6 32. g4 Be3 33. Kd1 |
| ECO A11 in 1988 play it! csom istvan defeats black's rasmussen karste by checkmate in 117 moves | 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. d4 Bf5 5. Nbd2 h6 6. Be2 e6 7. O-O Nbd7 8. b3 Be7 9. Bb2 O-O 10. a3 a5 11. Bc3 c5 12. cxd5 Nxd5 13. Bb2 N7f6 14. Rc1 Rc8 15. h3 Bh7 16. Bc4 cxd4 17. Nxd4 Nb6 18. Nxe6 fxe6 19. Bxe6+ Kh8 20. Bxc8 Nxc8 21. Nc4 Nd6 22. Ne5 Nd7 23. Ng4 Nf6 24. Ne5 Qe8 25. Qd2 Qb5 26. Rc7 Nfe4 27. Qd3 Qe8 28. Qd5 Bf6 29. f4 Bg8 30. Qd3 Kh7 31. Rfc1 Qe6 32. Rxb7 Qd5 33. Qxd5 Bxd5 34. Rb6 Rd8 35. Rd1 Nf5 36. Re1 Rc8 37. Rb5 Ne7 38. Bd4 Nd2 39. Ng4 Bh4 40. Rd1 Rc2 41. Rc5 Ra2 42. Rc7 Bxb3 43. Ra1 Rxa1+ 44. Bxa1 h5 45. g3 Bxg3 46. Rxe7 hxg4 47. hxg4 Bh4 48. Rxg7+ Kh6 49. Ra7 a4 50. Kg2 Nc4 51. Bg7+ Kg6 52. Bf8 Nxe3+ 53. Kf3 Nd5 54. f5+ Kf6 55. Bg7+ Kg5 56. Ra6 Be1 57. Rg6+ Kh4 58. Rh6+ Kg5 59. Rh5# |
| ECO A15 in 2000 play it! csom istvan defeats black's silva firmino in 59 moves | 1. c4 Nf6 2. Nf3 e6 3. g3 a6 4. Bg2 b5 5. b3 Bb7 6. O-O c5 7. Bb2 Be7 8. d3 O-O 9. e4 d6 10. Nbd2 Nbd7 11. Ne1 e5 12. Nc2 Ne8 13. Ne3 Nc7 14. Bh3 g6 15. f4 exf4 16. gxf4 Bf6 17. Bxf6 Nxf6 18. f5 g5 19. Bg4 Qe7 20. Rf2 Qe5 21. Rc1 Nfe8 22. Ng2 Qe7 23. Nf1 Ng7 24. Ng3 Qe5 25. Be2 Rfe8 26. Ne1 Qe7 27. Qd2 h6 28. Rg2 Ra7 29. h4 gxh4 30. Nh5 |
| ECO A13 in 1995 play it! csom istvan defeats black's rigo janos in 87 moves | 1. c4 e6 2. Nf3 Nf6 3. b3 d5 4. Bb2 Be7 5. cxd5 exd5 6. e3 O-O 7. Be2 c5 8. O-O Nc6 9. d4 b6 10. Nc3 Bb7 11. Rc1 cxd4 12. Nxd4 Nxd4 13. Qxd4 Bc5 14. Qh4 Ne4 15. Qxd8 Rfxd8 16. Nb5 a6 17. Nd4 g6 18. Rfd1 Rac8 19. f3 Ng5 20. Kf2 Ne6 21. Bd3 Nxd4 22. Bxd4 Bxd4 23. exd4 Rxc1 24. Rxc1 Rc8 25. Re1 Kf8 26. h4 Re8 27. Rh1 h5 28. Kg3 Re3 29. Rd1 Ke7 30. Kf4 Re6 31. Rc1 Kd6 32. Kg5 b5 33. Rc2 Bc6 34. Re2 Be8 35. Rxe6+ Kxe6 36. b4 Ke7 37. g4 hxg4 38. fxg4 Ke6 39. Bc2 f6+ 40. Kh6 f5 41. gxf5+ gxf5 42. Kg5 f4 43. Bf5+ Ke7 44. Bg4 |
| ECO A15 in 2003 play it! csom istvan defeats black's flumbort andras in 63 moves | 1. c4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 c5 5. g3 b6 6. Bg2 Bb7 7. O-O O-O 8. Nc3 Na6 9. Rc1 e6 10. Qc2 Qe7 11. Qb1 d5 12. cxd5 Nxd5 13. Nxd5 Bxd5 14. Bxg7 Kxg7 15. d4 Rac8 16. Qb2 f6 17. Qa3 Nb4 18. dxc5 bxc5 19. Rc3 Rc6 20. Qb2 Rc7 21. Rfc1 Rfc8 22. a3 Bxf3 23. Bxf3 Nd5 24. Bxd5 exd5 25. Qd2 Qf7 26. Rd1 Rd8 27. Rd3 Rb8 28. Qa5 g5 29. Rxd5 Rxb3 30. Rxc5 Rxc5 31. Qxc5 Qb7 32. Qf5 |
| ECO A15 in 1983 play it! csom istvan defeats black's iskov gert in 73 moves | 1. c4 Nf6 2. Nf3 g6 3. b4 Bg7 4. Bb2 O-O 5. e3 d6 6. d3 b6 7. Be2 a5 8. a3 axb4 9. axb4 Rxa1 10. Bxa1 Na6 11. Bc3 Bb7 12. O-O Qd7 13. Nbd2 Ra8 14. Qc2 Ra7 15. Qb2 Qd8 16. Ra1 Ra8 17. Ne1 Nb8 18. Rxa8 Bxa8 19. Qa1 Nbd7 20. Bf3 Bxf3 21. Nexf3 Qc8 22. Qa4 c5 23. Kf1 d5 24. b5 dxc4 25. Bxf6 Nxf6 26. Nxc4 Qd8 27. Nce5 Ne8 28. Qe4 Nd6 29. Qc6 Qb8 30. g3 Bxe5 31. Nxe5 Qa7 32. Nd7 Qa3 33. Kg2 Kg7 34. Qd5 Qa1 35. Nxb6 Nxb5 36. d4 Qb1 37. Qe5+ |
| ECO A15 in 1978 play it! csom istvan defeats black's nunn john d m en in 77 moves | 1. c4 Nf6 2. Nf3 e6 3. b3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Bb2 c5 8. Nc3 d5 9. e3 dxc4 10. bxc4 Nc6 11. Qe2 Rc8 12. Rfd1 Na5 13. d3 a6 14. Rab1 Qc7 15. Ba1 Nd7 16. Bh3 Bf6 17. Ne1 Qc6 18. Bg2 Qc7 19. f3 Rfd8 20. Nc2 Bc6 21. f4 Nb7 22. e4 Nb8 23. e5 Be7 24. Ne4 Ba4 25. Rd2 Nc6 26. Ne1 Nd4 27. Qg4 Kh8 28. Rdb2 b5 29. Nc3 Na5 30. Nxa4 bxa4 31. Qd1 Rb8 32. Rxb8 Rxb8 33. Rxb8+ Qxb8 34. Qxa4 Nac6 35. Kf1 Qc8 36. Bxd4 Nxd4 37. Bb7 Qg8 38. Qxa6 g5 39. Qa8 |
| ECO A20 in 1994 play it! csom istvan defeats black's werner veronika in 80 moves | 1. c4 e5 2. g3 d6 3. Bg2 f5 4. Nc3 Nf6 5. d3 c6 6. e4 g6 7. Nge2 Bg7 8. O-O O-O 9. b3 Be6 10. exf5 Bxf5 11. d4 Qc7 12. h3 Na6 13. Be3 Rae8 14. Qd2 exd4 15. Nxd4 Ne4 16. Nxe4 Bxe4 17. f3 Bf5 18. Rad1 Bc8 19. Bf2 Nc5 20. Rfe1 a5 21. f4 Kh8 22. Re2 a4 23. b4 Ne6 24. Rde1 Qf7 25. Nf3 Bf6 26. Qxd6 Rd8 27. Qb8 Nc7 28. Ne5 Qg7 29. Qa7 Na6 30. a3 Bf5 31. b5 cxb5 32. cxb5 Nc7 33. Qxa4 Nd5 34. Qb3 Nc7 35. a4 Be6 36. Qc2 Bd5 37. b6 Na6 38. Bxd5 Rxd5 39. Qc4 Rdd8 40. Ng4 Rd7 |
| ECO A15 in 2001 play it! csom istvan defeats black's vajda albert in 83 moves | 1. c4 Nf6 2. Nf3 c5 3. b3 e6 4. Bb2 b6 5. g3 Bb7 6. Bg2 Be7 7. O-O O-O 8. Nc3 a6 9. d3 Nc6 10. e3 Rb8 11. Qe2 Ba8 12. d4 cxd4 13. exd4 b5 14. d5 exd5 15. cxb5 axb5 16. Nxb5 Bb7 17. Nbd4 Ra8 18. Rfd1 Re8 19. Qc2 g6 20. a3 Rc8 21. Qd3 Na5 22. Bc3 Ne4 23. Be1 Qb6 24. b4 Nc4 25. Qb3 Bf6 26. a4 Ng5 27. a5 Nxf3+ 28. Nxf3 Qb5 29. Bc3 Bxc3 30. Qxc3 Qa6 31. Qb3 Bc6 32. Nd4 Rb8 33. Qc3 Rec8 34. Bf1 Qb7 35. Nxc6 Rxc6 36. a6 Qc7 37. Rxd5 Nb6 38. Rc5 Nd5 39. Rxc6 dxc6 40. Qc5 Rd8 41. a7 Qb7 42. Bg2 |
| ECO A11 in 2000 play it! csom istvan defeats black's voigt martin in 107 moves | 1. c4 c6 2. Nf3 d5 3. Qc2 Nf6 4. g3 e6 5. Bg2 Be7 6. O-O O-O 7. b3 Nbd7 8. Bb2 a5 9. d4 b5 10. c5 Ne4 11. Ne1 f5 12. Nd3 Qe8 13. Nd2 Rf6 14. f3 Ng5 15. a3 Rh6 16. b4 Nh3+ 17. Bxh3 Rxh3 18. Rae1 Rh6 19. Rf2 Nf6 20. Nf1 Nh5 21. Rg2 g5 22. Bc1 axb4 23. axb4 Bf6 24. Ne5 Bxe5 25. dxe5 Rg6 26. Nd2 Ra4 27. Qc3 Bd7 28. Nb3 f4 29. g4 Ng7 30. h4 h5 31. hxg5 Qf7 32. Qd4 Rxg5 33. Bxf4 Rg6 34. Qd2 Be8 35. e3 Qa7 36. Nd4 hxg4 37. fxg4 Bd7 38. Qc2 Be8 39. Rb1 Qf7 40. Nf3 Qe7 41. Qf2 Qa7 42. Nh4 Qe7 43. Kh2 Bf7 44. Kh3 Ne8 45. Qc2 Rg7 46. Rh2 Nc7 47. Rb3 Qe8 48. Bh6 Bg6 49. Nxg6 Rxg6 50. Bf4 Qf7 51. Kg3 Ra1 52. Rb1 Ra3 53. Rbh1 Kf8 54. Rh7 |
| ECO A14 in 2002 play it! csom istvan defeats black's kahn manfred in 85 moves | 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 Nc6 8. cxd5 Nxd5 9. Nc3 Bf6 10. Rc1 b6 11. Ba1 Nxc3 12. Bxc3 Bxc3 13. Rxc3 Ba6 14. d3 Rc8 15. Qd2 Qe7 16. Rfc1 Rfd8 17. Qb2 Qf6 18. a3 Nd4 19. Nxd4 Qxd4 20. b4 Rb8 21. bxc5 bxc5 22. Qc2 h6 23. Bf1 c4 24. dxc4 Qc5 25. Qe4 Rd4 26. Qc2 Rbd8 27. Qb3 Rc8 28. Qa4 Rd6 29. Bg2 Rb6 30. Bf3 Rc7 31. h4 g6 32. Re3 Bc8 33. Rd3 Rd6 34. Rcd1 Rxd3 35. Rxd3 Qxc4 36. Rd8+ Kg7 37. Qe8 Kf6 38. Qh8+ Ke7 39. Kg2 Bd7 40. Qf8+ Kf6 41. Qxh6 Bc6 42. Rd4 Qxe2 43. Qh8+ |
| ECO A15 in 1986 play it! csom istvan defeats black's suba mihai in 109 moves | 1. c4 Nf6 2. Nf3 c5 3. b3 e6 4. Bb2 d5 5. e3 a6 6. Be2 Nc6 7. cxd5 exd5 8. d4 cxd4 9. Nxd4 Bb4+ 10. Bc3 Bd6 11. Nd2 O-O 12. Qc2 Qe7 13. O-O Re8 14. Rac1 Bd7 15. Nxc6 Bxc6 16. Rfd1 Rac8 17. Qb1 Bd7 18. Bd4 Ba3 19. Rxc8 Rxc8 20. Bd3 h6 21. h3 Rc6 22. Nf3 Bc8 23. Ne5 Rc7 24. Qa1 Be6 25. Nf3 Rc6 26. Bxf6 Qxf6 27. Qxf6 gxf6 28. Nd4 Rc7 29. Bf5 Re7 30. Rd2 Bc5 31. Bg4 Kh7 32. Bf5+ Kg7 33. Bd3 a5 34. Nf5+ Bxf5 35. Bxf5 Re5 36. Bg4 d4 37. exd4 Rd5 38. Bf3 Rxd4 39. Rxd4 Bxd4 40. Bxb7 f5 41. Kf1 f4 42. Ke2 Kf6 43. Bd5 Ke7 44. h4 f5 45. h5 Kd6 46. Bf7 Bb6 47. f3 Kc5 48. Kd3 Kb4 49. Be6 Ka3 50. Bxf5 Kxa2 51. Be6 Kb2 52. Ke4 Kc3 53. Kxf4 Kd3 54. Kf5 Ke2 55. f4 |
| ECO A20 in 1998 play it! csom istvan defeats black's zemerov vladimir in 71 moves | 1. c4 e5 2. d3 Nc6 3. Nc3 f5 4. a3 Nf6 5. e3 a5 6. Nf3 d6 7. Be2 g6 8. d4 e4 9. Ng5 Bg7 10. h4 h6 11. Nh3 Ne7 12. Nf4 c6 13. b3 g5 14. Nh5 Nxh5 15. Bxh5+ Kd7 16. Bb2 Qf8 17. Qd2 g4 18. f3 exf3 19. gxf3 gxf3 20. O-O-O Kc7 21. Bxf3 Bd7 22. a4 h5 23. Ne2 Ng6 24. Rdg1 Be8 25. Bc3 Qe7 26. Nf4 Nxf4 27. exf4 Bf6 28. d5 Bd7 29. dxc6 Bxc6 30. Bxc6 bxc6 31. Re1 Qg7 32. Bxa5+ Rxa5 33. Qxa5+ Kb7 34. Rhg1 Qh6 35. Qxf5 Rd8 36. Rg6 |
| ECO A20 in 1987 play it! csom istvan defeats black's zaichik gennady in 97 moves | 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. d3 Be7 7. Be3 O-O 8. Rc1 Nc6 9. Bxc6 bxc6 10. Nf3 Bh3 11. Nxe5 Bf6 12. Nxc6 Qd7 13. Ne4 Bxb2 14. Rc2 Rfe8 15. Rg1 Ba3 16. Qa1 Nd5 17. g4 Re6 18. Rg3 Rxc6 19. Rxc6 Qxc6 20. Rxh3 Rb8 21. Kf1 Nxe3+ 22. Rxe3 Bc1 23. Rf3 Rb2 24. a4 h6 25. Qa3 Qe6 26. Qc5 Rb1 27. Qf5 Ra1 28. Kg2 Rxa4 29. Qb5 Ra6 30. Qb8+ Kh7 31. Qxc7 Qxg4+ 32. Rg3 Bf4 33. Qc4 Qe6 34. Qxe6 Rxe6 35. Rf3 f5 36. Nc5 Rc6 37. d4 Bd6 38. Rxf5 Kg6 39. Rd5 Bxc5 40. dxc5 a5 41. Kf3 a4 42. Ke4 a3 43. Rd3 Re6+ 44. Kd5 Rxe2 45. Rxa3 Rd2+ 46. Kc4 Kf6 47. Rf3+ Ke6 48. Re3+ Kf6 49. c6 |
| ECO A15 in 1989 play it! csom istvan defeats black's kirov nino in 57 moves | 1. c4 Nf6 2. Nf3 c6 3. Qa4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. Nc3 e5 8. c5 dxc5 9. Nxe5 Re8 10. Nf3 Nd5 11. Re1 b5 12. Qd1 c4 13. d4 cxd3 14. Nxd5 Qxd5 15. exd3 Rxe1+ 16. Qxe1 Qe6 17. Qa5 Qd7 18. d4 Bb7 19. Be3 Na6 20. Ne5 Qe8 21. a4 bxa4 22. Rxa4 Rd8 23. Nxc6 Rd6 24. d5 Qd7 25. Qb5 h5 26. Rxa6 Bxa6 27. Qxa6 Bxb2 28. Bc5 Rf6 29. Qb5 |
| ECO A15 in 1991 play it! csom istvan defeats black's guindy esmat in 59 moves | 1. c4 Nf6 2. g3 c6 3. Qa4 d5 4. Bg2 e6 5. Nf3 Nbd7 6. d3 Bd6 7. O-O O-O 8. Nbd2 Re8 9. Qc2 e5 10. Nh4 Nf8 11. Nb3 h6 12. c5 Bc7 13. e4 Ne6 14. Nf5 Bd7 15. f4 dxe4 16. dxe4 Qb8 17. fxe5 Bxe5 18. Kh1 b6 19. Be3 Qc7 20. Rad1 Nxc5 21. Nxc5 bxc5 22. Bxc5 Bxf5 23. exf5 Rab8 24. b3 Rec8 25. Rc1 Nd7 26. Be3 c5 27. Qf2 a5 28. Rfd1 Rb4 29. f6 Bxf6 30. Qf5 |
| ECO A13 in 1992 play it! csom istvan defeats black's stock michael in 75 moves | 1. c4 e6 2. Nf3 b6 3. e4 d5 4. cxd5 exd5 5. exd5 Nf6 6. Bb5+ Bd7 7. Bc4 Qe7+ 8. Kf1 Qc5 9. Qe2+ Be7 10. d4 Qd6 11. b3 Nxd5 12. Ba3 c5 13. dxc5 bxc5 14. Nbd2 O-O 15. Bxd5 Bf6 16. Bxa8 Bxa1 17. Nc4 Qg6 18. Be4 Qf6 19. Qc2 Na6 20. Ke2 Re8 21. Ne3 Bd4 22. Re1 Qf4 23. Bxh7+ Kh8 24. Kf1 g6 25. Bxg6 fxg6 26. Qxg6 Re6 27. Qh5+ Rh6 28. Qd5 Rd6 29. Qa8+ Kh7 30. Nd5 Qf5 31. Nxd4 Qd3+ 32. Kg1 Qxd4 33. Re7+ Kh6 34. Qf8+ Kg6 35. Qf7+ Kg5 36. Bc1+ Kg4 37. Qf3+ Kh4 38. Rh7+ |