| ECO D12 in 2006 play it! nikolaidis ioann defeats black's makropoulou mari in 47 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 a6 5. Bd3 dxc4 6. Bxc4 e6 7. O-O Nbd7 8. Nbd2 c5 9. b3 b5 10. Be2 Bb7 11. Bb2 Be7 12. a4 bxa4 13. Rxa4 O-O 14. Qa1 cxd4 15. Rxd4 Nd5 16. Nc4 Bf6 17. Rg4 Bxb2 18. Qxb2 N7f6 19. Rg3 g6 20. Ng5 Qe7 21. Bf3 h6 22. Ne4 Rab8 23. Ne5 Nb4 24. Nxg6 |
| ECO D13 in 2002 play it! nikolaidis ioann defeats black's pavlovic s dejan in 71 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 a6 7. e3 Bg4 8. h3 Bh5 9. g4 Bg6 10. Qb3 Na5 11. Qa4+ Nc6 12. Ne5 Qb6 13. Bb5 Rc8 14. Bxc6+ bxc6 15. Qb3 Qa7 16. Na4 e6 17. Qb6 Qa8 18. Rc1 Be7 19. Rxc6 O-O 20. O-O Bc2 21. b3 h5 22. Rc1 Bh7 23. g5 Ba3 24. Rxc8 Rxc8 25. Rc7 Ne8 26. Rxc8 Qxc8 27. Nc5 Bf5 28. Nc6 Kf8 29. Na7 Qa8 30. Kh2 f6 31. gxf6 gxf6 32. Bb8 Ke7 33. Nxa6 e5 34. b4 exd4 35. exd4 Bc8 36. Nxc8+ |
| ECO D30 in 1999 play it! nikolaidis ioann defeats black's halkias stelios in 82 moves | 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Bg5 f6 6. Bd2 Nc6 7. e3 Be6 8. Bb5 c4 9. b3 cxb3 10. Bxc6+ bxc6 11. axb3 Bd6 12. O-O Ne7 13. Bc1 g5 14. Ba3 g4 15. Bxd6 Qxd6 16. Ne1 Bf5 17. Nc3 h5 18. Nd3 h4 19. Nf4 Rg8 20. Qc1 Kf7 21. Qa3 Qd7 22. Qc5 Ng6 23. Nce2 h3 24. g3 Rgc8 25. f3 gxf3 26. Rxf3 Be4 27. Rf2 Ne7 28. Nh5 Bf5 29. Raf1 Rh8 30. Nxf6 Qe6 31. Ng4 Kg7 32. Ne5 Rae8 33. Qxa7 Rhf8 34. Nf4 Qh6 35. g4 Be4 36. Nh5+ Kg8 37. Rxf8+ Rxf8 38. Rxf8+ Qxf8 39. Qd7 Bg2 40. Qe6+ Kh7 41. Nf4 Qxf4 |
| ECO D30 in 1997 play it! nikolaidis ioann defeats black's bousios hristos in 51 moves | 1. d4 d5 2. c4 e6 3. Nf3 a6 4. Bg5 f6 5. Bd2 c6 6. Qc2 f5 7. Bg5 Qa5+ 8. Nbd2 h6 9. Bf4 Nf6 10. g3 Ne4 11. Bg2 Nd7 12. O-O g5 13. Be3 Bg7 14. Nxe4 dxe4 15. Nd2 e5 16. Nb3 Qa4 17. f3 exd4 18. Bxd4 Bxd4+ 19. Nxd4 Qxc2 20. Nxc2 exf3 21. exf3 f4 22. gxf4 gxf4 23. Rfe1+ Kd8 24. Rad1 Rf8 25. Nd4 Rf6 26. Ne6+ |
| ECO D30 in 2001 play it! nikolaidis ioann defeats black's dimopoulos georg in 71 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. Qc2 O-O 8. Rd1 b6 9. e4 Bb7 10. cxd5 exd5 11. e5 Be7 12. Qf5 Qd7 13. Qf4 c5 14. dxc5 Bxc5 15. Bd3 Na6 16. Bf5 Qd8 17. O-O Nc7 18. Ne4 Bc8 19. Nd6 Bxd6 20. exd6 Ne6 21. Qe5 Qf6 22. Qxf6 gxf6 23. Rxd5 Nf4 24. Bxc8 Raxc8 25. Rd2 Rc5 26. g3 Ne6 27. Kg2 Rfc8 28. Nh4 R8c6 29. Re1 Rc2 30. Ree2 Rxd2 31. Rxd2 Rc5 32. b4 Rc4 33. d7 Nd8 34. Re2 Kh7 35. Re8 Nc6 36. b5 |
| ECO D11 in 1997 play it! nikolaidis ioann defeats black's oreopoulos konst in 51 moves | 1. d4 d5 2. c4 c6 3. Nf3 e6 4. Nbd2 Nf6 5. g3 Nbd7 6. Bg2 Bd6 7. O-O O-O 8. Qc2 Re8 9. b3 e5 10. cxd5 cxd5 11. dxe5 Nxe5 12. Bb2 Qe7 13. Nd4 Neg4 14. e3 Qe5 15. N2f3 Qh5 16. h3 Nxe3 17. fxe3 Bxg3 18. Ne2 Ne4 19. Nxg3 Nxg3 20. Qf2 Nxf1 21. Rxf1 Re6 22. Ng5 Re7 23. Qg3 Be6 24. Bxg7 Qg6 25. Bf6 Ree8 26. Bd4 |
| ECO D30 in 1996 play it! nikolaidis ioann defeats black's karanikolas kons in 47 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. g4 h6 8. h3 Qe7 9. Bd2 a6 10. O-O-O b5 11. c5 Bc7 12. Kb1 a5 13. Bd3 Ba6 14. Ne2 O-O 15. g5 hxg5 16. Nxg5 e5 17. Ng3 exd4 18. exd4 Bxg3 19. fxg3 b4 20. Bh7+ Kh8 21. Rhe1 Qd8 22. Bf5 Ra7 23. Bf4 Nb8 24. g4 |
| ECO D18 in 1994 play it! nikolaidis ioann defeats black's almasi istvan in 75 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Nh4 Bg4 10. f3 Bh5 11. g4 Nd5 12. Qe1 Be7 13. Ng2 Bg6 14. Qf2 Nd7 15. e4 N5b6 16. Ba2 e5 17. Be3 exd4 18. Bxd4 Qc7 19. f4 h6 20. Nh4 Bh7 21. a5 Nc8 22. Nf5 Bxf5 23. gxf5 Nd6 24. Qg2 Ne8 25. Kh1 Kh8 26. Qh3 Ndf6 27. e5 Ng8 28. Rg1 c5 29. Nd5 Qc6 30. Be3 c4 31. Rad1 Bc5 32. f6 Bxe3 33. Qxe3 gxf6 34. Bb1 Ng7 35. Rxg7 Kxg7 36. Qe4 Rfe8 37. Rg1+ Kf8 38. Rxg8+ |
| ECO D30 in 1994 play it! nikolaidis ioann defeats black's martidis alkis in 61 moves | 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Be3 cxd4 9. Bxd4 O-O 10. Nc3 Be6 11. Qa4 Nxd4 12. Qxd4 Qa5 13. Ng5 Bb4 14. Rac1 Rac8 15. Nxe6 fxe6 16. Bh3 Bxc3 17. Bxe6+ Kh8 18. Rxc3 Rxc3 19. bxc3 Re8 20. Bf5 Rxe2 21. a4 Ra2 22. Qf4 Qxa4 23. Qb8+ Qe8 24. Qxb7 g6 25. Bb1 Ra3 26. Qb4 Ra4 27. Qd6 Ne4 28. Bxe4 dxe4 29. Rb1 Rc4 30. Qf6+ Kg8 31. Rb7 |
| ECO D30 in 1993 play it! nikolaidis ioann defeats black's vlahos georgios in 53 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 dxc4 5. Qa4+ Bd7 6. Qxc4 Bc6 7. Bg2 Nbd7 8. O-O Be7 9. Nc3 O-O 10. Qd3 b6 11. e4 Bb7 12. Bf4 Nc5 13. Qc2 Ncxe4 14. Ne5 Nd6 15. Nxf7 Rxf7 16. Bxd6 Qxd6 17. Bxb7 Rb8 18. Nb5 Qd8 19. Bg2 a6 20. Na7 Qd6 21. Rac1 Nd5 22. Qe2 Bf6 23. Rc6 Qd7 24. Rxe6 Bxd4 25. Nc6 Rxf2 26. Rxf2 Bxf2+ 27. Qxf2 |
| ECO D31 in 1993 play it! nikolaidis ioann defeats black's vouros g in 17 moves | 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Bf4 dxc4 5. e3 b5 6. a4 Bb4 7. axb5 cxb5 8. Qf3 Qd5 9. Qg3 |
| ECO D30 in 1999 play it! nikolaidis ioann defeats black's nadanian ashot in 79 moves | 1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Be3 c4 9. Ne5 O-O 10. b3 cxb3 11. Qxb3 Na5 12. Qa4 Be6 13. Nd2 a6 14. Nb3 Nc4 15. Nxc4 b5 16. Qa5 dxc4 17. Bxa8 Qxa8 18. Nc5 Bh3 19. f3 Bxf1 20. Kxf1 Qd5 21. Bf2 Qh5 22. h4 Bxc5 23. dxc5 Qe5 24. Rd1 Nd5 25. e4 Nc7 26. c6 Rc8 27. Kg2 f5 28. Rd7 fxe4 29. f4 Qh5 30. Rxc7 Qf3+ 31. Kg1 Re8 32. Rxg7+ Kxg7 33. Qc7+ Kf8 34. Qd6+ Kg8 35. Qd7 Qh5 36. c7 e3 37. Bxe3 Qg6 38. Kh2 Qc2+ 39. Kh3 Qe4 40. c8=Q |
| ECO D10 in 1997 play it! nikolaidis ioann defeats black's gavrilakis nikol in 83 moves | 1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e3 e5 5. Bxc4 exd4 6. exd4 Nf6 7. Nf3 Be7 8. O-O O-O 9. Ne5 Nbd7 10. Bg5 Nb6 11. Bb3 Nfd5 12. Bxe7 Nxe7 13. Re1 Ned5 14. Ne4 f6 15. Nd3 Kh8 16. Qf3 a5 17. a3 Nc7 18. Nf4 Nbd5 19. Nc3 Nxf4 20. Qxf4 Ra6 21. Re2 Rb6 22. Bc4 Nb5 23. Na4 Ra6 24. Rd1 Ra8 25. h4 Qd6 26. Qxd6 Nxd6 27. Nb6 Rb8 28. f3 Nxc4 29. Nxc4 b6 30. Re7 Kg8 31. Rc7 Ba6 32. Rxc6 Rfc8 33. Rxc8+ Rxc8 34. Ne3 Kf7 35. Rd2 Rc1+ 36. Kf2 Rb1 37. Nd5 Ke6 38. Nxb6 g5 39. Na4 Bc4 40. d5+ Kd6 41. hxg5 fxg5 42. Nc3 |
| ECO D20 in 1994 play it! nikolaidis ioann defeats black's valkesalmi kimmo in 95 moves | 1. d4 d5 2. c4 dxc4 3. e4 Nc6 4. Nf3 Bg4 5. d5 Ne5 6. Bf4 Ng6 7. Be3 e5 8. Bxc4 Bd6 9. Bb5+ Kf8 10. Be2 Nf6 11. Nfd2 Bd7 12. g3 h5 13. h4 Ng4 14. Bxg4 Bxg4 15. Qb3 b6 16. Nc3 a6 17. f3 Bd7 18. Nc4 Qe7 19. Nxd6 Qxd6 20. a4 Kg8 21. Qa3 Rb8 22. Qxd6 cxd6 23. Ke2 f6 24. Rhc1 Kf7 25. b4 Rhc8 26. b5 a5 27. Nd1 Ne7 28. Nb2 Rxc1 29. Rxc1 Rb7 30. Nc4 Nc8 31. f4 Ke7 32. Kd3 Kd8 33. Bf2 Ke7 34. f5 Kd8 35. Rh1 Be8 36. g4 Ke7 37. g5 Bf7 38. Be3 Be8 39. Rg1 Kf7 40. gxf6 Kxf6 41. Bg5+ Kf7 42. Bd8 Kf8 43. Rc1 Bd7 44. Ne3 Ke8 45. Rc7 Rb8 46. Bg5 Ne7 47. Nc4 Nc8 48. Ne3 |
| ECO D06 in 1995 play it! nikolaidis ioann defeats black's schlindwein rolf in 97 moves | 1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ c6 5. Rxb1 Qxd5 6. Nf3 Nd7 7. a3 Ngf6 8. Qc2 e6 9. e3 c5 10. Bc4 Qc6 11. O-O Rc8 12. b3 Be7 13. Bb2 O-O 14. Ne5 Qc7 15. Nxd7 Nxd7 16. d5 exd5 17. Bxd5 Bf6 18. a4 Bxb2 19. Qxb2 b6 20. Rbd1 Nf6 21. Bc4 Rcd8 22. g3 Qc6 23. Qe2 h6 24. Rfe1 Nd5 25. Qf3 Nb4 26. Bxf7+ Kh8 27. Qxc6 Nxc6 28. Bc4 Ne5 29. Be2 g5 30. f4 Nc6 31. Kf2 Kg7 32. Bc4 Kf6 33. Ke2 h5 34. Rxd8 Rxd8 35. Rd1 Rxd1 36. Kxd1 h4 37. Ke2 Na5 38. e4 hxg3 39. hxg3 gxf4 40. gxf4 a6 41. e5+ Kg6 42. Kf3 b5 43. axb5 axb5 44. Bxb5 Nxb3 45. Bd3+ Kg7 46. Ke4 Nd4 47. f5 Kf8 48. Kd5 Nf3 49. Bc4 |
| ECO D30 in 1999 play it! nikolaidis ioann defeats black's aliev rasim in 97 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bg5 c6 6. e3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Be2 dxc4 10. Bxf6 Nxf6 11. Nxc4 Qc7 12. a3 Be7 13. O-O b6 14. b4 Bb7 15. Bf3 Rac8 16. Rfc1 Qb8 17. Rab1 Rfd8 18. Qb3 Nd5 19. Ne4 Qa8 20. Ne5 f6 21. Nd3 a5 22. Nf4 Kf7 23. Nc3 axb4 24. axb4 Nxf4 25. exf4 c5 26. Bxb7 Qxb7 27. bxc5 Rxd4 28. Qxb6 Qc6 29. f5 Rc4 30. fxe6+ Qxe6 31. Qxe6+ Kxe6 32. Re1+ Kf5 33. Rxe7 Rxc3 34. Rxg7 R8xc5 35. g4+ Kf4 36. Kg2 Rc7 37. Rb4+ Ke5 38. Rb5+ Ke6 39. Rb6+ Ke5 40. f4+ Kxf4 41. Rxf6+ Ke5 42. Rxc7 Rxc7 43. Rf5+ Ke6 44. Kg3 Rf7 45. Kf4 Rxf5+ 46. gxf5+ Kf6 47. Ke4 Kf7 48. Ke5 Ke7 49. f6+ |
| ECO D10 in 1999 play it! nikolaidis ioann defeats black's danesis orestis in 119 moves | 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 dxc4 6. e4 b5 7. a4 Qb6 8. Bxf6 gxf6 9. Be2 Bb7 10. O-O Nd7 11. d5 cxd5 12. exd5 b4 13. a5 Qc5 14. dxe6 fxe6 15. a6 Bc6 16. Na4 Qd5 17. Qc2 Qe4 18. Qxe4 Bxe4 19. Nd2 Bd3 20. Bxd3 cxd3 21. Rfe1 Ke7 22. Rad1 Bh6 23. Nf3 d2 24. Nxd2 Ne5 25. Nb3 Rhd8 26. Nbc5 Rxd1 27. Rxd1 Rc8 28. Rd4 Rd8 29. Rxd8 Kxd8 30. Nxe6+ Kd7 31. Nd4 Nc6 32. Nb5 Nb8 33. Nxa7 Nxa6 34. Kf1 Kd6 35. Ke2 Kd5 36. Kd3 f5 37. Nc8 Bf8 38. Ncb6+ Kc6 39. Nc4 Nc5+ 40. Nxc5 Bxc5 41. f4 Kd5 42. Ne3+ Ke6 43. b3 Bd6 44. g3 Bc5 45. Nf1 Kd5 46. Nd2 h5 47. Nf3 Bf2 48. Nh4 Ke6 49. Kc4 Be1 50. Nf3 Bc3 51. Nd4+ Kf6 52. Nc2 h4 53. Nxb4 hxg3 54. hxg3 Be1 55. Nd3 Bxg3 56. Kd5 Bh2 57. b4 Bg1 58. b5 Be3 59. Kc6 Kg6 60. b6 |
| ECO D13 in 2004 play it! nikolaidis ioann defeats black's nikolaidis konst in 95 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Ne4 7. e3 Nxc3 8. bxc3 g6 9. Be5 Nxe5 10. Nxe5 Bg7 11. Qa4+ Kf8 12. Nd3 Bf5 13. Qb3 Rc8 14. Rc1 Rc7 15. Nf4 Rd7 16. Bb5 Rd6 17. Be2 Qd7 18. O-O Bf6 19. Bd3 Bxd3 20. Nxd3 Rb6 21. Nc5 Qc6 22. Qa3 a6 23. Rb1 Kg7 24. Rxb6 Qxb6 25. Qb4 Qxb4 26. cxb4 e6 27. Rb1 Rb8 28. a4 Bd8 29. Kf1 h5 30. b5 a5 31. b6 g5 32. Rb5 Kg6 33. Ke2 g4 34. Nb3 Rc8 35. Kd3 Rc4 36. Nc5 Be7 37. Rxa5 Rb4 38. Rb5 Rc4 39. a5 Rc1 40. Nxb7 Ra1 41. Nc5 Ra3+ 42. Nb3 Ra2 43. b7 Bd6 44. b8=Q Bxb8 45. Rxb8 Rxf2 46. a6 Ra2 47. Nc5 h4 48. Rb4 |
| ECO D30 in 2007 play it! nikolaidis ioann defeats black's bousios hristos in 43 moves | 1. d4 d5 2. c4 e6 3. Nf3 a6 4. e3 Nf6 5. b3 c5 6. Bd3 Nc6 7. Bb2 cxd4 8. exd4 Bb4+ 9. Nbd2 Ne4 10. O-O Nxd2 11. Nxd2 Qa5 12. Nf3 dxc4 13. bxc4 Ba3 14. Bxa3 Qxa3 15. Re1 Qd6 16. d5 Ne7 17. Ng5 h6 18. Qh5 g6 19. Qh4 exd5 20. cxd5 Qxd5 21. Nxf7 g5 22. Qb4 |
| ECO D13 in 2002 play it! nikolaidis ioann defeats black's karadeniz emre in 71 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 a6 7. Rc1 Qb6 8. Na4 Qb4+ 9. Bd2 Qd6 10. Qb3 Nd7 11. e3 e6 12. Qc2 Be7 13. a3 b5 14. Qxc6 Qxc6 15. Rxc6 bxa4 16. Bd3 O-O 17. Ke2 Nb8 18. Rc3 Bd7 19. Rhc1 f6 20. Rc7 Bd6 21. R7c2 a5 22. e4 dxe4 23. Bxe4 Ra6 24. Bd3 Ra7 25. Be3 Rb7 26. Nd2 Bb5 27. Bxb5 Rxb5 28. Ne4 Be7 29. Nc3 Rh5 30. h3 f5 31. f4 g5 32. Nxa4 Nd7 33. Rc7 Rd8 34. Nc5 Bxc5 35. dxc5 Nf6 36. c6 |