| ECO D30 in 2002 play it! nikolaidis ioann defeats black's nikolopoulou dan in 43 moves | 1. d4 d5 2. c4 e6 3. Nf3 Be7 4. Nc3 c6 5. e4 dxe4 6. Nxe4 Nf6 7. Bd3 Nbd7 8. O-O O-O 9. Qe2 c5 10. dxc5 Nxc5 11. Nxc5 Bxc5 12. Bg5 h6 13. Bh4 Be7 14. Rad1 Qc7 15. Ne5 b6 16. Bxf6 Bxf6 17. Ng4 Bg5 18. f4 Bxf4 19. Qe4 f5 20. Qxf4 Qxf4 21. Rxf4 fxg4 22. Bh7+ |
| ECO D30 in 1998 play it! nikolaidis ioann defeats black's merkouris p in 127 moves | 1. d4 d5 2. c4 e6 3. Nf3 c6 4. g3 Nf6 5. Bg2 Bd6 6. O-O Nbd7 7. b3 O-O 8. Bb2 Qc7 9. Nc3 dxc4 10. bxc4 b6 11. Rc1 Bb7 12. Qc2 Rac8 13. e4 e5 14. c5 bxc5 15. dxe5 Nxe5 16. Nxe5 Bxe5 17. Na4 Bxb2 18. Qxb2 Nd7 19. Nxc5 Nxc5 20. Rxc5 Ba6 21. Rfc1 Rb8 22. Qc2 Rb6 23. h4 Rfb8 24. Rxc6 Rxc6 25. Qxc6 Qxc6 26. Rxc6 Bb5 27. Rc7 a6 28. Bf1 g6 29. Bc4 Bxc4 30. Rxc4 Rb6 31. g4 h6 32. Kg2 Kg7 33. Ra4 Kf6 34. Ra5 Ke6 35. Kg3 Rc6 36. f3 Rd6 37. Rc5 Kd7 38. Kf4 Rf6+ 39. Ke3 Rb6 40. Rd5+ Ke7 41. f4 Rb2 42. Ra5 Rb6 43. h5 gxh5 44. Rxh5 Rg6 45. Kf3 Rc6 46. Re5+ Kf6 47. Ra5 Rc3+ 48. Kf2 Rc6 49. Kg3 Kg7 50. Ra3 Kf6 51. e5+ Ke6 52. Ra5 f5 53. Kh4 Rb6 54. Kh5 Rc6 55. a3 Rb6 56. Ra4 Rc6 57. Rd4 fxg4 58. Kxg4 Rb6 59. a4 a5 60. Rd3 Kf7 61. Rd6 Rb4 62. Rxh6 Rxa4 63. Ra6 Ra1 64. Kf5 |
| ECO D11 in 2005 play it! nikolaidis ioann defeats black's exizoglou dimitr in 80 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. Bf4 Bd6 6. e3 Bxf4 7. exf4 O-O 8. Nbd2 Qa5 9. a3 dxc4 10. Bxc4 c5 11. dxc5 Qxc5 12. Rc1 Nc6 13. O-O Qd6 14. g3 e5 15. Ne4 Nxe4 16. Qxe4 exf4 17. Ng5 Qg6 18. Qxg6 hxg6 19. Rfe1 Bf5 20. Rcd1 Rac8 21. Ba2 Rc7 22. gxf4 Rfc8 23. Re3 Kf8 24. b4 a6 25. Kg2 Rd8 26. Rc1 Rcd7 27. Rc5 Nd4 28. h4 Nc2 29. Ree5 Nd4 30. Rc3 Nc6 31. Ree3 Rc7 32. Bb3 Rd4 33. Kg3 Rcd7 34. Nf3 Rd3 35. Rcxd3 Bxd3 36. Ne5 Nxe5 37. fxe5 Bf5 38. Rc3 Rd3+ 39. Rxd3 Bxd3 40. Kf4 b6 |
| ECO D11 in 2000 play it! nikolaidis ioann defeats black's bemporad filippo in 63 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 e6 5. g3 Nbd7 6. Bg2 Be7 7. O-O O-O 8. Nbd2 b6 9. e4 Bb7 10. e5 Ne8 11. cxd5 exd5 12. h4 c5 13. Re1 Nc7 14. Nf1 Ne6 15. Ne3 cxd4 16. Nf5 Rc8 17. Qd1 d3 18. Qxd3 Ndc5 19. Qd1 Ne4 20. Be3 Bc5 21. N3d4 Nxd4 22. Bxd4 Bxd4 23. Qxd4 Rc4 24. Qd1 Rc7 25. Rc1 g6 26. Bxe4 Rxc1 27. Qxc1 dxe4 28. Rd1 Qe8 29. Qg5 Qe6 30. Nh6+ Kg7 31. Ng4 f5 32. Nf6 |
| ECO D30 in 2001 play it! nikolaidis ioann defeats black's dimitriou georgi in 85 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Qc2 c6 6. Bg5 Nbd7 7. e3 h6 8. Bh4 O-O 9. cxd5 Nxd5 10. Bg3 Qa5 11. Bc4 Nxc3 12. bxc3 Bf6 13. O-O Re8 14. Rad1 b5 15. Be2 Bb7 16. Bd6 Nb6 17. Nd2 Na4 18. Bb4 Qb6 19. c4 e5 20. Ne4 exd4 21. Nxf6+ gxf6 22. Rxd4 c5 23. Rg4+ Kf8 24. Ba3 b4 25. Qxa4 bxa3 26. Qxa3 Be4 27. Qc3 Rad8 28. h3 Bg6 29. Rf4 Rd6 30. Bf3 Rb8 31. Bd5 Qb2 32. Qa5 Qb6 33. Qa3 Qa6 34. Qxc5 Kg7 35. e4 Rb2 36. Qc7 Rxa2 37. e5 Ra1 38. Qxd6 Rxf1+ 39. Kh2 Qa1 40. exf6+ Kh7 41. Qf8 Rh1+ 42. Kg3 Qc3+ 43. Bf3 |
| ECO D30 in 2000 play it! nikolaidis ioann defeats black's kleiner bronisla in 99 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Qc2 c5 6. dxc5 Bxc5 7. Bg5 Be7 8. cxd5 exd5 9. O-O-O Nbd7 10. Nxd5 O-O 11. e3 Nxd5 12. Rxd5 h6 13. h4 Qe8 14. Kb1 a6 15. Bc4 b5 16. Rxd7 Bxd7 17. Bxe7 bxc4 18. Bxf8 Qxf8 19. Qxc4 Rc8 20. Qd3 Bb5 21. Qd2 Bc6 22. Rc1 Be4+ 23. Ka1 Rd8 24. Qe2 Bd3 25. Qe1 Be4 26. Qf1 Bd3 27. Qg1 Qb4 28. Nd4 Rb8 29. b3 Qe7 30. g3 Be4 31. Qe1 Qf6 32. Qd2 Rd8 33. Rc5 h5 34. Kb2 g6 35. Rc1 Kh7 36. Rc7 Kg8 37. Rc5 Kh7 38. f4 Re8 39. Qc3 Qd6 40. Rc8 Rxc8 41. Qxc8 Qb4 42. Qc3 Qd6 43. Qa5 f6 44. b4 Bb7 45. Qc5 Qd7 46. Qf8 f5 47. Qf6 Qd5 48. Qe7+ Kh6 49. Qe5 Qg2+ 50. Ka3 |
| ECO D11 in 2000 play it! nikolaidis ioann defeats black's chuyevsky paata in 35 moves | 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 g6 5. Bf4 Na6 6. e3 Bf5 7. Qb3 Qa5+ 8. Nc3 Nb4 9. Rc1 b6 10. Ne5 Rc8 11. a3 Na6 12. cxd5 Nxd5 13. Nc4 Nc5 14. dxc5 Qxc5 15. Na4 e5 16. Nxc5 exf4 17. Nb7 Ne7 18. Ne5 |
| ECO D30 in 2000 play it! nikolaidis ioann defeats black's olivetti pierlui in 85 moves | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bg5 Be7 6. e3 O-O 7. Qc2 a6 8. cxd5 exd5 9. Bd3 h6 10. Bh4 Re8 11. O-O c6 12. Bg3 Bb4 13. a3 Ba5 14. b4 Bc7 15. Bxc7 Qxc7 16. a4 Qd6 17. Rab1 b5 18. a5 Bb7 19. Bf5 Re7 20. Bxd7 Nxd7 21. Ne2 Rae8 22. Nf4 Qf6 23. Nd3 Qf5 24. Rbc1 g6 25. Nfe5 Nxe5 26. dxe5 h5 27. f4 Rc8 28. Nc5 Qxc2 29. Rxc2 Kg7 30. Rfc1 Rd8 31. Nxb7 Rxb7 32. Rxc6 d4 33. Rd6 Rbd7 34. Rcc6 d3 35. Kf2 d2 36. Ke2 Rxd6 37. exd6 d1=Q+ 38. Kxd1 Kf6 39. e4 Ke6 40. Rxa6 f5 41. e5 g5 42. g3 Kd5 43. Kd2 |
| ECO D18 in 1998 play it! nikolaidis ioann defeats black's jakobsen michael in 101 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 Nbd7 9. Qe2 Bg6 10. e4 O-O 11. e5 Nd5 12. Nxd5 cxd5 13. Bd3 Be7 14. Bxg6 hxg6 15. Bd2 Nb8 16. Qb5 Qb6 17. Ba5 Qxb5 18. axb5 a6 19. Bd2 Nd7 20. Rfc1 axb5 21. Rxa8 Rxa8 22. Rc7 Ra1+ 23. Be1 Bb4 24. Rxd7 Bxe1 25. Rd8+ Kh7 26. Ng5+ Kh6 27. Nxf7+ Kh5 28. Rh8+ Kg4 29. h3+ Kf4 30. Rh4+ Kf5 31. Nd6+ Kg5 32. g3 Bb4+ 33. Kg2 Bxd6 34. exd6 Ra8 35. Rf4 Rd8 36. Rf7 Rxd6 37. Rxg7 b6 38. Rf7 Rc6 39. f4+ Kh6 40. g4 g5 41. Rf6+ Kg7 42. fxg5 Rc2+ 43. Kg3 Re2 44. h4 Re3+ 45. Rf3 Re1 46. h5 Rg1+ 47. Kh3 Kg8 48. g6 Kg7 49. Rf7+ Kh6 50. Rh7+ Kg5 51. g7 |
| ECO D30 in 1998 play it! nikolaidis ioann defeats black's skembris spyrido in 85 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 Ng4 11. Nxg4 Bxg4 12. Nc3 cxb3 13. Qxb3 Na5 14. Qxd5 Rc8 15. Qe4 Qd7 16. Nd5 Rfe8 17. Bf3 Bf5 18. Nxe7+ Rxe7 19. Qd5 Qxd5 20. Bxd5 Rd7 21. Bf3 Nc4 22. a4 Re8 23. Rfc1 Nxe3 24. fxe3 Rde7 25. Ra3 g6 26. Kf2 h5 27. a5 b6 28. axb6 axb6 29. Rc6 Rb8 30. Rb3 b5 31. Rc5 Bd7 32. Bd5 Be8 33. e4 Kf8 34. e5 Ra7 35. Rf3 Ke7 36. Bb3 b4 37. d5 Kd8 38. d6 Ra3 39. Rc7 g5 40. e6 fxe6 41. Rf8 Ra5 42. Bxe6 Re5 43. Rd7+ |
| ECO D27 in 1997 play it! nikolaidis ioann defeats black's logothetis sotir in 45 moves | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. b3 cxd4 8. Nxd4 Bd7 9. Bb2 Nc6 10. Nf3 Be7 11. Nbd2 O-O 12. a3 Rc8 13. Qe2 Qc7 14. Bd3 Rfd8 15. Rac1 Qb8 16. Ne4 Ng4 17. Nc5 Nce5 18. Nxe5 Nxe5 19. Bxh7+ Kxh7 20. Qh5+ Kg8 21. Bxe5 Bd6 22. Bxd6 Qxd6 23. Nxb7 |
| ECO A40 in 1994 play it! nikolaidis ioann defeats black's poluljahov alexa in 77 moves | 1. d4 e6 2. Nd2 d5 3. Ngf3 f5 4. Ne5 Nf6 5. Ndf3 Be7 6. Bf4 O-O 7. e3 Ne4 8. h4 Nd7 9. Bd3 Ndf6 10. h5 Qe8 11. Ng5 c5 12. c3 b5 13. a4 c4 14. Bxe4 fxe4 15. h6 g6 16. axb5 Qxb5 17. Rb1 Rb8 18. f3 Nh5 19. Rxh5 gxh5 20. fxe4 Qe8 21. Qf3 Rb7 22. Qg3 Kh8 23. Nxh7 Bh4 24. Qxh4 Kxh7 25. Nf3 Qg6 26. Ng5+ Kg8 27. g4 hxg4 28. Kd2 e5 29. Bxe5 Rh7 30. Nxh7 Kxh7 31. Qe7+ Qf7 32. Qxf7+ Rxf7 33. Bf4 dxe4 34. b3 Be6 35. bxc4 Bxc4 36. Rb4 Bd3 37. c4 a5 38. Ra4 Rb7 39. d5 |
| ECO A40 in 1995 play it! nikolaidis ioann defeats black's conquest stuart in 63 moves | 1. d4 e6 2. Nd2 d6 3. e4 g6 4. Bd3 Bg7 5. Ne2 Ne7 6. f4 Nd7 7. c3 O-O 8. Nf3 b6 9. O-O Bb7 10. Ng3 c5 11. Be3 Rc8 12. Kh1 Rc7 13. Qe2 Qa8 14. Rae1 Re8 15. Bd2 a6 16. Qf2 b5 17. f5 exf5 18. exf5 Nf6 19. Bf4 cxd4 20. cxd4 Rd7 21. Bg5 Ned5 22. Ne4 Nh5 23. Qh4 Ndf4 24. Bxf4 Bxe4 25. fxg6 Bxd3 26. Rxe8+ Qxe8 27. Re1 Be2 28. gxh7+ Kh8 29. Qxh5 Re7 30. Bh6 Bxd4 31. Qg5 f6 32. Qg8+ |
| ECO A40 in 1993 play it! nikolaidis ioann defeats black's stefanov parik in 63 moves | 1. d4 e6 2. Nd2 c5 3. dxc5 Bxc5 4. Ne4 d5 5. Nxc5 Qa5+ 6. c3 Qxc5 7. e4 dxe4 8. Qg4 g6 9. Qxe4 Nf6 10. Qh4 Nd5 11. Nf3 Nc6 12. Bc4 Nce7 13. Qd4 Qxd4 14. Nxd4 a6 15. O-O Bd7 16. Re1 h6 17. Nf3 f6 18. Nd2 Rc8 19. Bb3 Rc7 20. Ne4 Kf7 21. c4 Nb4 22. Bd2 Nbc6 23. Bc3 e5 24. c5+ Kg7 25. f4 Nf5 26. Nxf6 Kxf6 27. fxe5+ Kg7 28. e6+ Nfd4 29. Rad1 Kh7 30. exd7 Rxd7 31. Bxd4 Nxd4 32. Rxd4 |
| ECO A40 in 1995 play it! nikolaidis ioann defeats black's riemelmoser oliv in 57 moves | 1. d4 e6 2. Nf3 Nf6 3. c4 Be7 4. Nc3 d5 5. Qc2 O-O 6. Bg5 c6 7. e3 Nbd7 8. a3 Re8 9. Bd3 a6 10. Rd1 dxc4 11. Bxc4 b5 12. Ba2 Qb6 13. e4 Bb7 14. e5 Nd5 15. Bb1 Nf8 16. Bxe7 Nxe7 17. Ne4 Red8 18. O-O Nf5 19. Nc5 Rd5 20. Qc3 Nxd4 21. Nxd4 Rxc5 22. Qe3 Rd5 23. Be4 Rd7 24. Nb3 Qd8 25. Rxd7 Nxd7 26. Rd1 Qc7 27. Bxh7+ Kxh7 28. Qd3+ g6 29. Qxd7 |
| ECO A40 in 1998 play it! nikolaidis ioann defeats black's skaperdas kostan in 83 moves | 1. d4 e6 2. Nd2 d5 3. Ngf3 c5 4. e3 Nf6 5. c3 Be7 6. Bd3 O-O 7. O-O b6 8. e4 dxe4 9. Nxe4 Bb7 10. Qe2 Nbd7 11. Re1 Nxe4 12. Bxe4 Qc7 13. Bxb7 Qxb7 14. Bf4 Nf6 15. Be5 Nd7 16. Bg3 Rad8 17. Rad1 Bf6 18. d5 Rfe8 19. d6 e5 20. Nd2 g6 21. Ne4 Bg7 22. Bh4 Rb8 23. Be7 h6 24. g4 Bf8 25. Nf6+ Nxf6 26. Bxf6 Qd7 27. Bxe5 Re6 28. Qd2 Rbe8 29. Bg3 Rxe1+ 30. Rxe1 Rxe1+ 31. Qxe1 Qxg4 32. h3 Qxh3 33. Qe8 Qh5 34. d7 Qd1+ 35. Kg2 Qd5+ 36. f3 Qd2+ 37. Kh3 Qd1 38. d8=Q Qh1+ 39. Kg4 f5+ 40. Kf4 g5+ 41. Kxf5 Qxf3+ 42. Kg6 |
| ECO A80 in 1998 play it! nikolaidis ioann defeats black's passakos georgio in 39 moves | 1. d4 f5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 Be7 5. e3 O-O 6. Bd3 Nc6 7. c3 d6 8. Qc2 d5 9. a3 Ne4 10. Bxe7 Qxe7 11. c4 a5 12. Rc1 Rf6 13. O-O g5 14. cxd5 exd5 15. Qb3 g4 16. Bxe4 fxe4 17. Qxd5+ Kh8 18. Ne5 Rf5 19. Nxc6 bxc6 20. Qxe4 |
| ECO A80 in 1997 play it! nikolaidis ioann defeats black's kanelakis symeon in 73 moves | 1. d4 f5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 d5 5. e3 Bd6 6. c4 c6 7. Bd3 O-O 8. O-O Nbd7 9. cxd5 cxd5 10. Rc1 Qb6 11. Nb3 Ne4 12. Bf4 h6 13. Qc2 Rf7 14. Bxd6 Qxd6 15. Qc7 Nf8 16. Qxd6 Nxd6 17. Ne5 Re7 18. Rc2 a6 19. Rfc1 b5 20. Na5 Nc4 21. b3 Nxe5 22. dxe5 Re8 23. f4 Ng6 24. Rc7 Nf8 25. Kf2 Bd7 26. Nb7 Rec8 27. Nd6 Rxc7 28. Rxc7 Kh8 29. a3 Kg8 30. h3 Kh8 31. g4 g6 32. Kg3 Kg8 33. h4 Kg7 34. h5 Kh7 35. hxg6+ Kxg6 36. gxf5+ exf5 37. Kh4 |
| ECO A80 in 1994 play it! nikolaidis ioann defeats black's pandavos panayot in 61 moves | 1. d4 f5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 Be7 5. e3 O-O 6. Bd3 d6 7. c3 Kh8 8. h3 Nd5 9. Bxe7 Qxe7 10. g4 e5 11. dxe5 dxe5 12. gxf5 Nd7 13. Qc2 Nc5 14. O-O-O e4 15. Bxe4 Nxc3 16. bxc3 Nxe4 17. Nxe4 Bxf5 18. Nfd2 Rf6 19. f3 Rb6 20. Nc4 Rc6 21. Rd4 Be6 22. Ne5 Rb6 23. Rb4 Rxb4 24. cxb4 Qxb4 25. Ng5 Qa3+ 26. Kb1 Qb4+ 27. Ka1 Qh4 28. Rg1 Re8 29. Qxc7 Bxa2 30. Qd7 Rf8 31. Ne6 |
| ECO A80 in 2000 play it! nikolaidis ioann defeats black's rotstein arkadij in 49 moves | 1. d4 f5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 Be7 5. e3 b6 6. Bd3 Bb7 7. Bxf6 Bxf6 8. e4 fxe4 9. Nxe4 Nc6 10. c3 Qe7 11. Qe2 O-O-O 12. O-O Qf7 13. a4 a5 14. Ba6 Be7 15. b4 Qh5 16. Nc5 Bxc5 17. bxc5 Rdf8 18. cxb6 cxb6 19. Rab1 Rxf3 20. Rxb6 Bxa6 21. Qxa6+ Kc7 22. Rb7+ Kd6 23. Qb6 Qd5 24. gxf3 Rc8 25. Qb5 |