| ECO A04 in 1974 play it! mariotti sergio defeats white's johannessen svei in 68 moves | 1. Nf3 e6 2. g3 f5 3. Bg2 Nf6 4. O-O Be7 5. d3 O-O 6. Nbd2 d6 7. e4 fxe4 8. dxe4 e5 9. Nc4 Nbd7 10. Nh4 Nb6 11. Ne3 g6 12. b3 Nfd7 13. Nf3 Nc5 14. Nd5 Nxd5 15. exd5 a5 16. Be3 b6 17. Qe2 Ba6 18. c4 Bc8 19. Bh6 Re8 20. Qe3 Bf6 21. Ng5 Bf5 22. Ne4 Bxe4 23. Bxe4 Qd7 24. Bc2 b5 25. cxb5 Qxb5 26. a3 Nd7 27. Rab1 Nb6 28. a4 Qb4 29. Rfd1 Nd7 30. h4 Qg4 31. Bd3 Nc5 32. Bc4 Bg7 33. Kg2 Bxh6 34. Qxh6 Rf8 |
| ECO A04 in 1975 play it! mariotti sergio defeats white's grigoriov in 68 moves | 1. Nf3 e6 2. g3 f5 3. Bg2 Nf6 4. c4 Be7 5. O-O O-O 6. d4 d5 7. Ne5 c6 8. b3 Nbd7 9. Nd3 Bd6 10. Ba3 Qe7 11. Bxd6 Qxd6 12. e3 b6 13. Nd2 Ba6 14. Rc1 c5 15. Re1 Rac8 16. Bf1 cxd4 17. exd4 dxc4 18. bxc4 Qxd4 19. Rxe6 Nc5 20. Nxc5 Qxc5 21. Nb3 Qa3 22. Rc2 Ne4 23. Qd5 Kh8 24. Qe5 Ng5 25. Qd6 Qxd6 26. Rxd6 Nf3+ 27. Kh1 Rfd8 28. Rxd8+ Rxd8 29. Rc1 g6 30. Bg2 Ne5 31. Bd5 Nd3 32. Rc2 Nb4 33. Rd2 Nxd5 34. cxd5 Bb7 |
| ECO A05 in 1978 play it! mariotti sergio defeats white's csom istvan in 84 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 c6 6. d4 d6 7. Nc3 Qa5 8. h3 Be6 9. d5 cxd5 10. Nd4 Bd7 11. cxd5 Rc8 12. Be3 Be8 13. Nb3 Qd8 14. Bd4 a5 15. a4 Na6 16. e4 Nd7 17. Bxg7 Kxg7 18. Qd4+ Kg8 19. f4 Ndc5 20. Nxc5 Nxc5 21. Ra3 Qb6 22. Rf2 Qb4 23. Qd1 Rc7 24. Kh2 Rac8 25. e5 f6 26. g4 Kg7 27. Kg3 Nd3 28. Qxd3 Qxa3 29. Bf3 Rxc3 30. bxc3 Qxc3 31. exf6+ exf6 32. Qb1 Bxa4 33. Qxb7+ Rc7 34. Qa8 Bd1 35. h4 Bxf3 36. Rxf3 Qe1+ 37. Kh3 Qh1+ 38. Kg3 Qg1+ 39. Kh3 h5 40. gxh5 Rc2 41. h6+ Kh7 42. Qb7+ Kxh6 |
| ECO A04 in 1974 play it! mariotti sergio defeats white's schmidt wlodzimi in 66 moves | 1. Nf3 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 d5 7. Qc2 c6 8. Nbd2 a5 9. Ne5 Nbd7 10. Nd3 Bd6 11. Nf3 Qe7 12. Bf4 Ne4 13. Bxd6 Nxd6 14. b3 Nf7 15. Rad1 b6 16. Qd2 Ba6 17. Rc1 Rac8 18. c5 Bxd3 19. exd3 bxc5 20. dxc5 e5 21. Rfe1 Qd8 22. Re2 g6 23. h4 Rb8 24. Bh3 Rb4 25. Ng5 Nxg5 26. hxg5 e4 27. dxe4 Ne5 28. Qc3 d4 29. Qa1 Nf3+ 30. Kg2 Nxg5 31. Rd1 Nxh3 32. a3 f4 33. Kxh3 Qg5 |
| ECO A04 in 1988 play it! mariotti sergio defeats white's santacruz f in 80 moves | 1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. O-O e5 6. Nc3 Nge7 7. d3 O-O 8. a3 d6 9. Rb1 b6 10. b4 Rb8 11. Bd2 h6 12. Ne1 f5 13. f4 Bb7 14. e3 Qd7 15. Nc2 Nd8 16. Nd5 Ne6 17. Bc3 Nxd5 18. cxd5 Nc7 19. e4 Nb5 20. Bb2 exf4 21. gxf4 Bxb2 22. Rxb2 Qg7 23. Rb3 Nd4 24. Rb1 Ba6 25. Rf2 Rbe8 26. Nxd4 Qxd4 27. b5 Bb7 28. Rc1 a6 29. a4 axb5 30. axb5 Ra8 31. exf5 Rxf5 32. Qg4 Rf6 33. Re1 Bxd5 34. Bxd5+ Qxd5 35. Qh4 Kg7 36. f5 Raf8 37. Re7+ R8f7 38. Rxf7+ Qxf7 39. fxg6 Rxg6+ 40. Kf1 Rf6 |
| ECO A04 in 1976 play it! mariotti sergio defeats white's kirov nino in 108 moves | 1. Nf3 Nc6 2. d4 d5 3. g3 Bg4 4. Bg2 e6 5. O-O Nge7 6. Nbd2 h5 7. c4 h4 8. Qa4 hxg3 9. fxg3 Qd7 10. b4 dxc4 11. b5 Nxd4 12. Qxc4 Nef5 13. Nb3 Bxf3 14. Bxf3 Nxf3+ 15. Rxf3 Nd6 16. Qc2 Qxb5 17. Bf4 Qf5 18. Qxf5 Nxf5 19. Bxc7 Rc8 20. Be5 f6 21. Bf4 Bd6 22. Bxd6 Nxd6 23. Rd1 Ke7 24. Rfd3 Rhd8 25. R1d2 b6 26. Nd4 e5 27. Nb3 a5 28. Kg2 Nb5 29. Rxd8 Rxd8 30. Rb2 Na3 31. Nd2 b5 32. Nb1 Nxb1 33. Rxb1 Rd2 34. Kf3 b4 35. a3 bxa3 36. Rb3 a4 37. Rxa3 Rd4 38. e3 Rb4 39. h4 Ke6 40. g4 f5 41. gxf5+ Kxf5 42. Kg3 g6 43. Ra1 Rg4+ 44. Kh3 Re4 45. Ra3 Rb4 46. Ra1 Rb3 47. Rf1+ Ke6 48. Rf8 Rxe3+ 49. Kg4 a3 50. Ra8 Kd5 51. Ra6 Kc4 52. Rxg6 a2 53. Ra6 Kb3 54. Kf5 Kb2 |
| ECO A04 in 1975 play it! mariotti sergio defeats white's grigoriu in 74 moves | 1. Nf3 e6 2. g3 f5 3. c4 Nf6 4. Bg2 Be7 5. O-O O-O 6. d4 d5 7. Ne5 c6 8. b3 Nbd7 9. Nd3 Bd6 10. Ba3 Qe7 11. Bxd6 Qxd6 12. e3 b6 13. Nd2 Ba6 14. Rc1 c5 15. Re1 Rac8 16. Bf1 cxd4 17. exd4 dxc4 18. bxc4 Qxd4 19. Rxe6 Nc5 20. Nxc5 Qxc5 21. Nb3 Qa3 22. Rc2 Ne4 23. Qd5 Kh8 24. Qe5 Ng5 25. Qd6 Qxd6 26. Rxd6 Nf3+ 27. Kh1 Rcd8 28. Rxd8 Rxd8 29. Rc1 g6 30. Bg2 Ne5 31. Bd5 Nd3 32. Rc2 Nb4 33. Rd2 Nxd5 34. cxd5 Bb7 35. Re2 Bxd5+ 36. Kg1 Bf3 37. Re1 Kg7 |
| ECO A04 in 1972 play it! mariotti sergio defeats white's ornstein axel sw in 76 moves | 1. Nf3 e6 2. g3 f5 3. Bg2 Nf6 4. O-O Be7 5. d3 O-O 6. Nbd2 d6 7. e4 fxe4 8. Nxe4 Nxe4 9. dxe4 e5 10. Be3 Nd7 11. Nd2 Nf6 12. h3 Qe8 13. Kh2 Qg6 14. Qe2 Be6 15. f4 exf4 16. gxf4 Qh5 17. Qxh5 Nxh5 18. c4 Bh4 19. Rf3 Rae8 20. Rc1 Bd7 21. c5 Bc6 22. cxd6 cxd6 23. Bxa7 Rxf4 24. Be3 Bg5 25. Rcf1 Rxf3 26. Rxf3 Bf6 27. b3 d5 28. exd5 Bxd5 29. Nf1 Be5+ 30. Kg1 Bxf3 31. Bxf3 Nf4 32. Bxf4 Bxf4 33. Bxb7 Re2 34. a4 Ra2 35. Bc6 Bd6 36. Bg2 Kf7 37. Bd5+ Kf6 38. Ne3 Bc5 |
| ECO A04 in 1974 play it! mariotti sergio defeats white's schmidt wlodzimi in 66 moves | 1. Nf3 e6 2. g3 f5 3. Bg2 Nf6 4. O-O Be7 5. c4 O-O 6. d4 d5 7. Qc2 c6 8. Ne5 Nbd7 9. Nd3 Bd6 10. Nd2 a5 11. Nf3 Qe7 12. Bf4 Ne4 13. Bxd6 Nxd6 14. b3 Nf7 15. Rad1 b6 16. Qd2 Ba6 17. Rc1 Rac8 18. c5 Bxd3 19. exd3 bxc5 20. dxc5 e5 21. Rfe1 Qd8 22. Re2 g6 23. h4 Rb8 24. Bh3 Rb4 25. Ng5 Nxg5 26. hxg5 e4 27. dxe4 Ne5 28. Qc3 d4 29. Qa1 Nf3+ 30. Kg2 Nxg5 31. Rd1 Nxh3 32. a3 f4 33. Kxh3 Qg5 |
| ECO A13 in 1976 play it! mariotti sergio defeats white's toth in 56 moves | 1. c4 e6 2. Nf3 d5 3. g3 dxc4 4. Qa4+ Nd7 5. Qxc4 b6 6. Bg2 Bb7 7. O-O Ngf6 8. Nc3 c5 9. d4 Rc8 10. Rd1 a6 11. a4 cxd4 12. Qxd4 Bc5 13. Qh4 Be7 14. Bg5 Rc7 15. Rd4 Qc8 16. Rad1 O-O 17. e4 Re8 18. Re1 h6 19. Bxh6 gxh6 20. e5 Nh7 21. Rg4+ Kh8 22. Qxh6 Rg8 23. Rf4 Rg7 24. h4 Kg8 25. Kh2 Rc5 26. Ne4 Rg6 27. Qh5 Bxe4 28. Rexe4 Nhf6 |
| ECO A20 in 1980 play it! mariotti sergio defeats white's heiberg thomas in 102 moves | 1. c4 e5 2. b3 Nc6 3. Bb2 Nf6 4. e3 Be7 5. Nf3 e4 6. Ng1 O-O 7. Nc3 d5 8. cxd5 Nb4 9. a3 Nbxd5 10. Nge2 Bf5 11. Ng3 Bg6 12. Be2 c6 13. O-O Re8 14. Rc1 Bd6 15. b4 Nb6 16. Qc2 h5 17. Rfd1 Ng4 18. Bxg4 hxg4 19. Na4 Nxa4 20. Qxa4 Qg5 21. Qb3 Rad8 22. Bd4 a6 23. a4 Kh7 24. Qb2 f6 25. Bc5 Be5 26. Bd4 Bd6 27. Bc5 Bc7 28. Bd4 Rd5 29. Rc5 Bd6 30. Rxd5 Qxd5 31. Rc1 Rd8 32. Rb1 Bc7 33. Rd1 Bd6 34. Rb1 Be7 35. Rc1 Rd7 36. Ne2 Bf5 37. Nf4 Qf7 38. b5 cxb5 39. axb5 a5 40. Bb6 Bb4 41. Bd4 Qe7 42. Rc4 Qf7 43. Rc2 Bd6 44. Ne2 Be6 45. Bc5 Be5 46. Bd4 Bc4 47. Bxe5 Bxe2 48. Bd4 Rd5 49. b6 Rb5 50. Qc1 Bd3 51. Rb2 Rf5 |
| ECO A13 in 1976 play it! mariotti sergio defeats white's tan lian in 81 moves | 1. c4 e6 2. Nc3 f5 3. g3 Nf6 4. Bg2 Be7 5. d3 O-O 6. e4 fxe4 7. dxe4 e5 8. Nge2 Bc5 9. O-O c6 10. Na4 Be7 11. b3 d6 12. Nec3 Na6 13. f3 Nc7 14. Be3 b5 15. Nb2 Be6 16. cxb5 Nxb5 17. Nxb5 cxb5 18. Qd2 a5 19. Rac1 Qd7 20. Nd3 Qb7 21. Rf2 Rfc8 22. Rxc8+ Qxc8 23. Qb2 a4 24. Rc2 Qd7 25. Nb4 axb3 26. axb3 Bf8 27. Nd3 Qf7 28. b4 Bc4 29. Ne1 d5 30. Qxe5 Bxb4 31. Rc1 dxe4 32. Nc2 exf3 33. Bxf3 Re8 34. Qf5 Bc3 35. Bc6 Qe6 36. Qf3 Rd8 37. Rb1 Bd5 38. Bxd5 Rxd5 39. Rd1 b4 40. Rxd5 Qxd5 41. Qxd5+ |
| ECO A22 in 1980 play it! mariotti sergio defeats white's tiller bjorn in 58 moves | 1. c4 e5 2. Nc3 Nf6 3. Nf3 d6 4. d4 Nbd7 5. e4 c6 6. Be2 Be7 7. O-O O-O 8. Re1 a6 9. Bf1 b5 10. c5 Qc7 11. cxd6 Bxd6 12. Bg5 exd4 13. Bxf6 Nxf6 14. Qxd4 c5 15. Qd2 Rd8 16. Qg5 Be7 17. e5 Ne4 18. Qf4 Nxc3 19. bxc3 Be6 20. a4 Rab8 21. Reb1 c4 22. axb5 axb5 23. Nd4 Rd5 24. Ra6 Bd7 25. Re1 f6 26. Nf3 fxe5 27. Nxe5 Rf8 28. Qe4 Qc5 29. Re3 Bf5 |
| ECO A22 in 1993 play it! mariotti sergio defeats white's di donna massimo in 102 moves | 1. c4 e5 2. Nc3 Nf6 3. Nf3 d6 4. d4 Nbd7 5. Bg5 c6 6. e4 Be7 7. Be2 O-O 8. O-O Re8 9. Re1 h6 10. Bh4 a6 11. Bg3 Nh5 12. dxe5 Nxg3 13. hxg3 dxe5 14. Qd2 Qc7 15. Rad1 Nf8 16. a3 Bg4 17. Nh2 Rad8 18. Qc2 Bc8 19. Bg4 Ne6 20. Ne2 a5 21. Nf3 Bc5 22. Rxd8 Rxd8 23. Rd1 Nd4 24. Nexd4 Bxg4 25. Nb3 Rxd1+ 26. Qxd1 Ba7 27. Qd2 a4 28. Qa5 Qb6 29. Qxb6 Bxb6 30. Nxe5 axb3 31. Nxg4 Bd4 32. Kf1 Bxb2 33. Ke2 Bxa3 34. Kd3 Bb4 35. Ne3 Kf8 36. Nf5 h5 37. f3 Bc5 38. g4 hxg4 39. fxg4 g6 40. Nh4 Bd4 41. Nf3 c5 42. Nd2 b2 43. Kc2 Ke7 44. Nf3 Kd6 45. Kb1 Kc6 46. Ng5 f6 47. Nf3 g5 48. Ne1 b5 49. Nd3 bxc4 50. Nxb2 Kb5 51. Nd1 c3 |
| ECO A00 in 1970 play it! mariotti sergio defeats white's suttles duncan in 72 moves | 1. g3 f5 2. Bg2 Nf6 3. d3 d6 4. Nc3 g6 5. Nh3 Bg7 6. O-O c6 7. e4 O-O 8. Kh1 a5 9. Bd2 h6 10. Qe2 Kh7 11. Rae1 e5 12. f4 fxe4 13. dxe4 b5 14. Nd1 b4 15. Ndf2 Ba6 16. Nd3 c5 17. fxe5 dxe5 18. Be3 Nbd7 19. Rg1 Qe7 20. Qd1 c4 21. Ndf2 Nc5 22. g4 Rad8 23. Qc1 Nfd7 24. Rd1 Bb7 25. g5 h5 26. Qd2 Na4 27. Rb1 c3 28. Qe2 Ndc5 29. b3 Ba6 30. Qe1 Nb6 31. Nd1 Nbd7 32. Qh4 Ne6 33. Bf2 Nf4 34. Ne3 Bb7 35. Rbd1 Nxh3 36. Bxh3 Rf4 |
| ECO B41 in 1975 play it! mariotti sergio defeats white's kernan bernard in 124 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 dxc3 5. Nxc3 Nc6 6. Bc4 d6 7. Qe2 Nf6 8. O-O Be7 9. Rd1 e5 10. h3 O-O 11. Bg5 Be6 12. Bxf6 Bxf6 13. Bd5 Nd4 14. Qd3 Qb6 15. Nxd4 exd4 16. Ne2 Bxd5 17. exd5 Rfe8 18. Rd2 Re5 19. Qxd4 Qxd4 20. Nxd4 Rxd5 21. Rad1 Rc8 22. Nf3 Rxd2 23. Rxd2 Rc1+ 24. Kh2 Rc6 25. Ne1 Kf8 26. Nd3 a5 27. g3 Bg5 28. Re2 Rc4 29. h4 Bf6 30. Kg2 Rd4 31. Rd2 Ke7 32. Kf3 g5 33. hxg5 Bxg5 34. Rd1 h5 35. Ke2 h4 36. gxh4 Rxh4 37. Rg1 Bf6 38. Rc1 Kd7 39. Rc2 b5 40. Kd2 Rc4 41. Kd1 Rxc2 42. Kxc2 Ke6 43. Kd2 Kd5 44. b3 Kd4 45. Ne1 Bg5+ 46. Kc2 Ke4 47. Kd1 Bh6 48. Kc2 Bg5 49. Kd1 f6 50. Nc2 Kf3 51. Nd4+ Kxf2 52. Nxb5 d5 53. Nd4 Ke3 54. Nc6 f5 55. Nxa5 f4 56. b4 Bf6 57. Nc6 f3 58. Ke1 Bc3+ 59. Kf1 Ke4 60. Na5 d4 61. Nc4 d3 62. Nd6+ Kf4 |
| ECO B92 in 1974 play it! mariotti sergio defeats white's paoli enrico in 74 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O b5 8. a3 Bb7 9. Bd3 Nbd7 10. f4 d5 11. e5 Bc5 12. Ne2 Ne4 13. Be3 Qe7 14. c3 f6 15. exf6 Ndxf6 16. Qe1 Ng4 17. Bc1 O-O 18. h3 Ngf2 19. Bxe4 Nxe4 20. Be3 Nd6 21. Rd1 Nc4 22. Bc1 Rae8 23. Kh1 e5 24. fxe5 Qxe5 25. Ng1 Qh5 26. Rxf8+ Bxf8 27. Qf1 Nd6 28. Qf3 Qg6 29. Rf1 Ne4 30. Nge2 Bd6 31. Qf5 Qxf5 32. Rxf5 Nc5 33. Rf3 Be5 34. Kg1 Bf6 35. Re3 Ne4 36. Ng3 Bxd4 37. cxd4 Rc8 |
| ECO B21 in 1996 play it! mariotti sergio defeats white's dintino v in 50 moves | 1. e4 c5 2. f4 e6 3. Nf3 a6 4. c3 d5 5. e5 Nc6 6. Bd3 Nge7 7. Bc2 g6 8. d3 h5 9. Nbd2 Nf5 10. Nf1 Be7 11. Be3 Bd7 12. Qd2 b5 13. a3 a5 14. Qf2 Qb6 15. b4 axb4 16. cxb4 Nxb4 17. Rc1 Rxa3 18. Bb1 d4 19. Bd2 Nxd3+ 20. Bxd3 Rxd3 21. Ra1 Bc6 22. Ba5 Qb7 23. N1d2 Re3+ 24. Kd1 O-O 25. Re1 Ra8 |
| ECO B21 in 1981 play it! mariotti sergio defeats white's steinfl alessand in 53 moves | 1. e4 c5 2. f4 e6 3. Nf3 d5 4. exd5 exd5 5. Bb5+ Nc6 6. O-O Bd6 7. d3 Ne7 8. Nc3 O-O 9. Bxc6 bxc6 10. Re1 Qc7 11. Ne5 f6 12. Ng4 d4 13. Na4 Nd5 14. g3 Qa5 15. c3 dxc3 16. Nxc3 Nxc3 17. bxc3 Qxc3 18. Be3 Be6 19. Nf2 f5 20. Rc1 Qf6 21. a4 Bd5 22. Bxc5 Bxc5 23. Rxc5 Qd4 24. Rc1 Rfe8 25. Qc2 Rab8 26. Rb1 Rxe1+ 27. Rxe1 |
| ECO B22 in 1996 play it! mariotti sergio defeats white's godena michele i in 68 moves | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 e6 5. Nf3 Nf6 6. Na3 Qd8 7. Nc2 Nc6 8. Bd3 cxd4 9. Ncxd4 Nxd4 10. Nxd4 Bc5 11. Nb3 Bb6 12. Qe2 Bd7 13. Be3 Nd5 14. Bxb6 Qxb6 15. Qe5 O-O 16. O-O Rac8 17. Rfd1 Nf6 18. Be2 Qc7 19. Qxc7 Rxc7 20. Rd4 Rfc8 21. Rad1 Kf8 22. f4 Ke7 23. Kf2 Bc6 24. Na5 Bd5 25. c4 Be4 26. b4 b6 27. Nb3 a5 28. bxa5 bxa5 29. Nxa5 Ra8 30. Nb3 Rxa2 31. Nd2 Bc2 32. Rc1 Nd7 33. Ke1 Nc5 34. Bd1 Nd3+ |