| ECO A06 in 1964 play it! nei iivo defeats white's dunkelblum arthu in 74 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. cxd5 exd5 6. Bg5 Be7 7. e3 Bf5 8. Bd3 Bxd3 9. Qxd3 O-O 10. O-O Nbd7 11. Nd2 h6 12. Bxf6 Bxf6 13. Rab1 a5 14. Rfc1 Re8 15. Na4 Be7 16. a3 Bd6 17. Nc3 a4 18. Ne2 Nf6 19. Nf1 g6 20. Re1 Qc7 21. f3 c5 22. dxc5 Bxc5 23. Nd4 Qb6 24. Red1 Nd7 25. b4 Bxd4 26. Qxd4 Qxd4 27. Rxd4 Nb6 28. Rc1 Rac8 29. Rc5 Nc4 30. e4 b6 31. Rxc8 Rxc8 32. exd5 Nxa3 33. b5 Ra8 34. Ne3 Nxb5 35. Rb4 Nc3 36. d6 b5 37. Nc2 Rd8 |
| ECO A06 in 1956 play it! nei iivo defeats white's matskevich avsha in 104 moves | 1. Nf3 d5 2. b4 e6 3. Bb2 Nf6 4. a3 Bd6 5. e3 O-O 6. c4 c6 7. Nc3 Nbd7 8. d4 Qe7 9. cxd5 exd5 10. g3 b5 11. Bg2 a5 12. bxa5 Rxa5 13. Qc1 Bb7 14. Nd2 Rfa8 15. Nb3 R5a7 16. Nb1 Nb6 17. O-O Nc4 18. Qc2 Nd7 19. Re1 b4 20. a4 Nxb2 21. Qxb2 Rxa4 22. N1d2 Rxa1 23. Rxa1 Rxa1+ 24. Qxa1 Qd8 25. e4 Qa8 26. Qe1 Bf8 27. e5 Qe8 28. Bh3 Bc8 29. f4 Nb6 30. Bf1 Na4 31. Qc1 Qd7 32. Bd3 g6 33. f5 c5 34. dxc5 Qc7 35. e6 fxe6 36. fxg6 hxg6 37. c6 Nc3 38. Nf3 e5 39. Bf1 Bg4 40. Qe3 Bxf3 41. Qxf3 Qxc6 42. h4 Qe6 43. h5 Qf5 44. Qxf5 gxf5 45. Bh3 f4 46. gxf4 Ne2+ 47. Kf2 Nxf4 48. Bg4 Kg7 49. Kf3 Kh6 50. Nd4 Nxh5 51. Nc6 e4+ 52. Ke3 Bc5+ |
| ECO A05 in 1963 play it! nei iivo defeats white's etruk rein t in 82 moves | 1. Nf3 Nf6 2. g3 d5 3. c4 c6 4. b3 Bf5 5. Bg2 e6 6. d3 Nbd7 7. Bb2 Bc5 8. O-O O-O 9. Nc3 h6 10. Qe1 Bg4 11. Rd1 Qe7 12. e4 d4 13. Nb1 e5 14. h3 Bxf3 15. Bxf3 a5 16. a3 b5 17. Rc1 Rfb8 18. Bd1 Bd6 19. Qe2 Nb6 20. cxb5 cxb5 21. Kg2 Nfd7 22. f4 f6 23. g4 exf4 24. Bxd4 Ne5 25. Qd2 Nbd7 26. Bb2 Nc5 27. Bc2 Ng6 28. Qe1 Ne6 29. d4 f3+ 30. Kh1 Bf4 31. Rd1 Ng5 32. Nc3 Nxh3 33. Rxf3 Ng5 34. Nd5 Qd7 35. Rxf4 Nxf4 36. Nxf4 Qxg4 37. Qf2 Rc8 38. Rd2 Rxc2 39. Rxc2 Nxe4 40. Qg2 Qxf4 41. Bc1 Qh4+ |
| ECO A09 in 1966 play it! nei iivo defeats white's gromek joseph in 44 moves | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. d4 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 axb5 12. exf6 Qb6 13. fxg7 Bxg7 14. Qe2 O-O 15. h4 f5 16. Rh3 e5 17. Bxb5 e4 18. Bc4+ Kh8 19. Ng5 d3 20. Qh5 Nf6 21. Nf7+ Rxf7 22. Qxf7 Ra7 |
| ECO A09 in 1961 play it! nei iivo defeats white's zilber israel in 93 moves | 1. Nf3 d5 2. c4 c6 3. cxd5 cxd5 4. d4 Nc6 5. Nc3 Nf6 6. Bf4 e6 7. e3 Be7 8. Bd3 O-O 9. O-O a6 10. Rc1 Nh5 11. Ne5 Nxf4 12. exf4 Nxd4 13. Bxh7+ Kxh7 14. Qxd4 g6 15. Na4 f6 16. Nd3 Qd6 17. Nb6 Rb8 18. Rfe1 Bd7 19. Qe3 Kg8 20. Nc5 Bc8 21. Nxe6 Bxe6 22. Qxe6+ Qxe6 23. Rxe6 Kf7 24. Rce1 Bb4 25. Rxf6+ Kxf6 26. Nxd5+ Kg7 27. Nxb4 Rxf4 28. Nc2 Rc8 29. Ne3 Rd4 30. Kf1 Rd2 31. Rb1 Rf8 32. Nd1 Rc2 33. h4 b5 34. a3 a5 35. g3 Rf7 36. Kg2 b4 37. axb4 axb4 38. Ra1 Re7 39. Kf3 Rd2 40. g4 Red7 41. Ne3 Rxb2 42. h5 Rf7+ 43. Ke4 Rbxf2 44. Nd5 b3 45. Rb1 b2 46. hxg6 Ra7 47. Nc3 |
| ECO A07 in 1994 play it! nei iivo defeats white's tolonen leo in 83 moves | 1. Nf3 d5 2. g3 g6 3. d4 Bg7 4. Bg2 c6 5. O-O Nf6 6. c4 dxc4 7. Ne5 Ng4 8. f4 Nxe5 9. fxe5 O-O 10. Na3 c5 11. e3 Nc6 12. Nxc4 cxd4 13. Bxc6 bxc6 14. exd4 Ba6 15. b3 c5 16. Bb2 Qd5 17. dxc5 Qxc5+ 18. Qd4 Qc6 19. Na5 Qc7 20. Qc3 Qb6+ 21. Rf2 Rac8 22. Nc4 Qc6 23. Qf3 Bxc4 24. Qxc6 Rxc6 25. bxc4 Rxc4 26. Rd1 Rc7 27. Rfd2 h6 28. Kf2 Kh7 29. Kf3 Rb8 30. g4 Rb5 31. Re2 g5 32. Rd3 e6 33. h3 Kg6 34. Rb3 Rd5 35. Rb8 Rcc5 36. Rg8 Ra5 37. a3 Rab5 38. Kg2 Rb3 39. Ra8 Rdb5 40. Bc1 Bxe5 41. Rxa7 Rg3+ 42. Kf1 |
| ECO A09 in 1977 play it! nei iivo defeats white's ornstein axel in 88 moves | 1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 e6 5. d4 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. Bc2 e5 12. O-O Bc5 13. b3 cxb3 14. axb3 Rb8 15. Rb1 O-O 16. b4 Bd6 17. Ne1 a5 18. Nd3 axb4 19. Nxb4 Bxb4 20. Rxb4 Qa5 21. Rb3 b4 22. Ne2 Nc5 23. Re3 Ba6 24. Bb2 Nfd7 25. Qa1 Qxa1 26. Rxa1 f6 27. Nc1 Bc4 28. f3 Ra8 29. Rxa8 Rxa8 30. Bd1 Nb6 31. Be2 Kf7 32. Kf2 Ke7 33. Ke1 Kd6 34. g3 Rc8 35. Bd1 Nca4 36. Ba1 Ra8 37. f4 Nc5 38. fxe5+ fxe5 39. Bb2 Rf8 40. Be2 Bxe2 41. Rxe2 Rf3 42. Kd2 Nc4+ 43. Kc2 b3+ 44. Kb1 Nxe4 |
| ECO A07 in 1969 play it! nei iivo defeats white's vadasz laszlo in 82 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d3 c5 6. Nbd2 Nc6 7. e4 Qc7 8. Re1 b6 9. e5 Nd7 10. Nf1 Bb7 11. Bf4 O-O-O 12. c3 Rdg8 13. g4 g5 14. Bg3 h5 15. gxh5 g4 16. N3d2 Rxh5 17. d4 Bh4 18. b4 Bxg3 19. fxg3 cxd4 20. cxd4 Kb8 21. Rc1 Qd8 22. Nb1 Nxb4 23. Nc3 a6 24. a3 Nc6 25. Ne2 Qe7 26. Nf4 Rhh8 27. Rc3 Na5 28. Ne3 Rc8 29. Rxc8+ Rxc8 30. Qxg4 Qxa3 31. Nfxd5 Rc1 32. Rxc1 Qxc1+ 33. Nf1 Qb2 34. Nde3 Bxg2 35. Nxg2 Nc6 36. d5 Ncxe5 37. Qg8+ Kc7 38. Nfe3 Nf3+ 39. Kf1 Nxh2+ 40. Kg1 Nf3+ 41. Kf1 Nde5 |
| ECO A06 in 1977 play it! nei iivo defeats white's uusi gunnar in 56 moves | 1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. e3 e6 5. d3 h6 6. Nbd2 Ngf6 7. h3 Bh5 8. g4 Bg6 9. Nh4 Bh7 10. f4 Bd6 11. Nhf3 Qe7 12. Ne5 Ba3 13. Qc1 Bxb2 14. Qxb2 Nxe5 15. Qxe5 O-O-O 16. Be2 Nd7 17. Qxg7 e5 18. fxe5 Rdg8 19. Qxh6 Be4 20. Qxh8 Rxh8 21. dxe4 Qh4+ 22. Kf1 Qg3 23. exd5 Nxe5 24. Re1 f5 25. gxf5 Qxe3 26. Rd1 Qf4+ 27. Ke1 Qg3+ 28. Kf1 Rh4 |
| ECO A07 in 1994 play it! nei iivo defeats white's marek jiri in 86 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d4 e6 6. Nbd2 h6 7. c4 Ngf6 8. b3 Be7 9. Bb2 O-O 10. Re1 Bf5 11. Ne5 Nxe5 12. dxe5 Nd7 13. e4 dxe4 14. Bxe4 Nc5 15. Bxf5 exf5 16. Ba3 Nd3 17. Bxe7 Qxe7 18. Re3 Rad8 19. Qe2 Nc5 20. Nf3 Rd7 21. Rd1 Rxd1+ 22. Qxd1 Rd8 23. Qc2 Qd7 24. Re2 Ne4 25. Nh4 g6 26. e6 Qd1+ 27. Qxd1 Rxd1+ 28. Kg2 Kf8 29. g4 fxe6 30. Nxg6+ Kf7 31. gxf5 exf5 32. Nf4 Kf6 33. f3 Nc5 34. Nh5+ Kg5 35. Ng7 Nd3 36. Ne6+ Kf6 37. Kh3 Rg1 38. Kh4 Ne5 39. Kh5 Nxf3 40. Nf4 Rg4 41. Ng2 Rg5+ 42. Kxh6 Rg6+ 43. Kh7 Ng5+ |
| ECO A16 in 1981 play it! nei iivo defeats white's uusi gunnar in 78 moves | 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. a3 a5 9. b3 O-O 10. Bb2 f5 11. d3 Bf6 12. Nd2 Nd4 13. Nc4 c6 14. e3 Ne6 15. Qc2 Nxc4 16. bxc4 Rb8 17. f4 exf4 18. gxf4 b5 19. cxb5 cxb5 20. Nd5 Bxb2 21. Qxb2 Qd7 22. Qe5 Bb7 23. Rab1 Ba8 24. e4 Rbe8 25. Nb6 Qd4+ 26. Qxd4 Nxd4 27. e5 Bxg2 28. Kxg2 Re6 29. Nd5 Rd8 30. Nc3 b4 31. axb4 axb4 32. Nd1 b3 33. Rf2 Rc6 34. Ne3 Rc3 35. Rd2 Ne6 36. Kf3 Rdxd3 37. Rxd3 Rxd3 38. h4 Nd4+ 39. Kf2 Rd2+ |
| ECO A11 in 1955 play it! nei iivo defeats white's shamkovich leoni in 82 moves | 1. c4 c6 2. d4 d5 3. Nc3 e5 4. cxd5 cxd5 5. Nf3 e4 6. Ne5 Nc6 7. Bf4 f6 8. Nxc6 bxc6 9. Qa4 Bd7 10. e3 Ne7 11. Ba6 Qb6 12. O-O Nf5 13. h3 h5 14. Be2 g5 15. Bh2 Qxb2 16. Rfc1 Qa3 17. Qd1 g4 18. hxg4 hxg4 19. Bxg4 Bd6 20. Bf4 Bxf4 21. exf4 Qf8 22. Ne2 Qh6 23. Bh3 Ne7 24. Rc3 Kf7 25. Rb1 Rag8 26. Kf1 Bxh3 27. Rxh3 Qg6 28. Ng3 Rxh3 29. gxh3 Qh6 30. Kg2 Qxf4 31. Rb7 Ke6 32. Qh5 Ng6 33. Rh7 Qg5 34. Qxg5 fxg5 35. Rc7 Nf4+ 36. Kh2 Kd6 37. Rxa7 Rh8 38. a4 Nxh3 39. Nf5+ Ke6 40. Ne3 Nxf2+ 41. Kg3 Rf8 |
| ECO A15 in 1965 play it! nei iivo defeats white's book eero in 42 moves | 1. c4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 O-O 5. e3 d6 6. d4 Nbd7 7. Be2 e5 8. dxe5 dxe5 9. Nc3 e4 10. Nd2 Re8 11. Qc2 c6 12. g4 Nc5 13. g5 Ng4 14. h3 Nd3+ 15. Bxd3 exd3 16. Qc1 Nxe3 17. fxe3 Rxe3+ 18. Kf1 Qxg5 19. Nde4 Rf3+ 20. Nf2 d2 21. Qd1 Rxf2+ |
| ECO A11 in 1971 play it! nei iivo defeats white's bisguier arthur in 64 moves | 1. c4 c6 2. Nc3 d5 3. d4 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 axb5 12. exf6 Qb6 13. fxg7 Bxg7 14. O-O O-O 15. Re1 Bb7 16. Bf4 Bd5 17. Ne5 Nxe5 18. Bxe5 f5 19. b3 Ra7 20. f3 Rfa8 21. Qe2 Bh6 22. f4 Bg7 23. Qf2 Bxe5 24. Rxe5 Qc5 25. Bf1 Qc3 26. Rd1 Rxa2 27. Qh4 Rf8 28. Rd3 Qc7 29. Rg3+ Kh8 30. Bxb5 d3 31. Bxd3 Qc1+ 32. Bf1 Ra1 |
| ECO A15 in 1966 play it! nei iivo defeats white's golz werner in 70 moves | 1. c4 Nf6 2. Nf3 e6 3. e3 d5 4. Nc3 Be7 5. d4 O-O 6. Be2 dxc4 7. Bxc4 a6 8. O-O b5 9. Bd3 Bb7 10. Qc2 Nbd7 11. Rd1 Rc8 12. a4 b4 13. Ne4 Bxe4 14. Bxe4 Nxe4 15. Qxe4 c5 16. Qd3 c4 17. Qe2 Qa5 18. e4 Nb6 19. Ne5 f6 20. Ng4 Nxa4 21. Ne3 Qb5 22. Qg4 f5 23. exf5 exf5 24. Qf3 Nb6 25. d5 f4 26. Nc2 Rcd8 27. Qe4 Bf6 28. d6 b3 29. Nd4 Rxd6 30. Bxf4 Rxd4 31. Rxd4 Bxd4 32. Qxd4 c3 33. Be5 cxb2 34. Rb1 Rc8 35. Bf4 Qc4 |
| ECO A00 in 1969 play it! nei iivo defeats white's gufeld eduard in 78 moves | 1. g3 Nf6 2. Bg2 d5 3. d3 c6 4. Nd2 Bg4 5. h3 Bh5 6. Ngf3 e6 7. e4 Be7 8. O-O Nfd7 9. b4 Bxb4 10. Rb1 Na6 11. Bb2 O-O 12. g4 Bg6 13. Nd4 dxe4 14. dxe4 e5 15. Nf5 Nb6 16. Nf3 f6 17. Qc1 Nc4 18. Rd1 Qc7 19. Bf1 b5 20. Bxc4+ bxc4 21. Ba3 Bc5 22. Nd2 Bf7 23. Bxc5 Nxc5 24. Qa3 Ne6 25. Nxc4 Nf4 26. Ncd6 Rab8 27. Nxf7 Kxf7 28. Qc5 Nxh3+ 29. Kh2 Nf4 30. Qc4+ Kg6 31. Nh4+ Kg5 32. Kg3 h5 33. gxh5 Nxh5+ 34. Kf3 Rxb1 35. Rxb1 Kxh4 36. Qf1 Kg5 37. Qg2+ Kh6 38. Rg1 Qf7 39. Qg4 g6 |
| ECO B25 in 1971 play it! nei iivo defeats white's wade robert grah in 94 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e6 7. Nf3 Nge7 8. O-O O-O 9. g4 f5 10. exf5 exf5 11. g5 d5 12. a3 d4 13. Na4 Qd6 14. b4 cxb4 15. axb4 b5 16. Nb6 Rb8 17. Nxc8 Rfxc8 18. Ra6 Rb6 19. Rxb6 axb6 20. Bd2 Nd5 21. Qb1 Kf8 22. Nh4 Ne3 23. Rf2 Ne7 24. Qa2 Rxc2 25. Qa8+ Rc8 26. Qa6 h6 27. Bb7 Rb8 28. gxh6 Bxh6 29. Ng2 Nd1 30. Rf1 Nc3 31. Re1 Bg7 32. Bf3 Bf6 33. Ra1 Qxb4 34. Qa7 Qd6 35. Be1 b4 36. Bd1 Rc8 37. Bb3 Qc7 38. Qxc7 Rxc7 39. Ra8+ Kg7 40. Rb8 Ncd5 41. Rd8 Ne3 42. Bxb4 Rc1+ 43. Ne1 Bh4 44. Rd7 Kh6 45. h3 Rb1 46. Bxe7 Rxe1+ 47. Kh2 Bxe7 |
| ECO B22 in 1995 play it! nei iivo defeats white's bjarnemark dougl in 56 moves | 1. e4 c5 2. c3 e6 3. d4 d5 4. Bd3 dxe4 5. Bxe4 Nf6 6. Bg5 cxd4 7. Qa4+ Qd7 8. Bc2 dxc3 9. Nxc3 Qxa4 10. Bxa4+ Bd7 11. Bxf6 gxf6 12. Bxd7+ Nxd7 13. Nge2 Bb4 14. O-O-O Ke7 15. Rhe1 Rhd8 16. Rd4 Ne5 17. Kc2 Bc5 18. Rxd8 Rxd8 19. Ne4 Bd6 20. N2c3 Ng4 21. Nd1 f5 22. h3 Ne5 23. Ng3 Nd3 24. Rf1 Nf4 25. Rg1 Rg8 26. Ne3 Rc8+ 27. Kb3 Nd3 28. Rf1 f4 |
| ECO B53 in 1989 play it! nei iivo defeats white's noksokoivisto an in 128 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 a6 5. c4 Nc6 6. Qd2 Nf6 7. Nc3 e6 8. b3 Be7 9. Be2 O-O 10. O-O b6 11. Bb2 Ra7 12. Rad1 Rd7 13. Qf4 Qc7 14. Bd3 Qb8 15. Rd2 Ne5 16. Bb1 b5 17. cxb5 axb5 18. Ne2 Ng6 19. Qe3 Bb7 20. h3 Rc8 21. Ng3 Rdd8 22. Rfd1 b4 23. Kh1 Ba8 24. Rd4 e5 25. R4d2 d5 26. exd5 Nxd5 27. Qe1 f6 28. Nf5 Ndf4 29. Nxe7+ Nxe7 30. Be4 Bxe4 31. Qxe4 Rxd2 32. Rxd2 Qb5 33. Rd1 Qe2 34. Qxe2 Nxe2 35. a3 Nc6 36. Rd2 bxa3 37. Bxa3 Ned4 38. Nxd4 Nxd4 39. Rb2 Rc3 40. Bd6 Nxb3 41. Ra2 Nd4 42. Ra8+ Kf7 43. Ra7+ Kg6 44. Bf8 Ne6 45. Bb4 Rc2 46. Kg1 h5 47. Ba5 Rb2 48. Ra6 Nc5 49. Rc6 Ne4 50. Be1 Rb1 51. Kf1 Nd2+ 52. Ke2 Nb3 53. Bc3 Rc1 54. Kd3 Nd4 55. Ra6 Rd1+ 56. Kc4 Kf5 57. Bxd4 Rxd4+ 58. Kc3 h4 59. Ra2 Rd1 60. Re2 Rg1 61. f3 g5 62. Kd3 Kf4 63. Re4+ Kg3 64. Rg4+ Kf2 |
| ECO B40 in 1971 play it! nei iivo defeats white's myagmarsuren lha in 104 moves | 1. e4 c5 2. Nf3 e6 3. Qe2 Nc6 4. g3 Nf6 5. Bg2 d5 6. exd5 Nxd5 7. O-O Be7 8. Nc3 O-O 9. d3 b6 10. Re1 Bb7 11. Nxd5 Qxd5 12. Ng5 Nd4 13. Bxd5 Nxe2+ 14. Rxe2 Bxd5 15. Ne4 c4 16. Nc3 cxd3 17. cxd3 Bf3 18. Re3 Bb7 19. d4 Rfd8 20. Rd3 Rd7 21. Be3 Rad8 22. a3 f5 23. f4 Kf7 24. Kf2 h6 25. Rad1 g5 26. R3d2 Bf6 27. Ne2 g4 28. Rc1 Be4 29. Ke1 h5 30. Rc4 Rh8 31. Rd1 Bd5 32. Rc3 h4 33. Bg1 hxg3 34. Nxg3 Kg6 35. Rdc1 Bf3 36. Rc7 Rhh7 37. Rxd7 Rxd7 38. Rc4 b5 39. Rc2 b4 40. axb4 Be7 41. Be3 Bxb4+ 42. Kf2 Bd5 43. Rc8 Ba5 44. Rc5 Bb6 45. Rc2 Bb3 46. Rc3 Ba4 47. Rd3 Bb5 48. Rd1 Rc7 49. Ne2 Rh7 50. Nc3 Rxh2+ 51. Kg1 Rxb2 52. Rb1 Rxb1+ |