| ECO A05 in 2000 play it! roeder mathias defeats white's sorokin maxim in 110 moves | 1. Nf3 Nf6 2. c4 b6 3. Nc3 c5 4. d4 cxd4 5. Nxd4 Bb7 6. f3 d6 7. e4 e6 8. Be2 Be7 9. O-O O-O 10. Be3 a6 11. a4 Nc6 12. Kh1 Re8 13. Nxc6 Bxc6 14. Qb3 Nd7 15. Rfd1 Qc7 16. Rac1 Rab8 17. Qa2 Ba8 18. Bf1 Red8 19. b3 Nc5 20. Bf4 Nd7 21. Qf2 Ne5 22. Be3 Bf6 23. Ne2 Nd7 24. Nd4 Nc5 25. Qa2 Bxd4 26. Bxd4 a5 27. Rd2 Rf8 28. Rcd1 Rbd8 29. Qb2 f6 30. Qc3 e5 31. Be3 f5 32. exf5 Rxf5 33. Bd3 Rf7 34. Be2 h6 35. Bxc5 bxc5 36. g3 Rf6 37. Kg1 Rdf8 38. Rd3 e4 39. fxe4 Bxe4 40. R3d2 Bb7 41. Bf1 Rf3 42. Qc2 Qe7 43. Re2 Qf6 44. Bg2 Rc3 45. Bxb7 Rxc2 46. Rxc2 Qe5 47. Kg2 Qe3 48. Rb2 Qc3 49. Rdd2 Kh8 50. Be4 g5 51. Rdc2 Qe1 52. Bd3 Qe3 53. Be2 Rf2+ 54. Kh3 Qe4 55. Rd2 Kg7 |
| ECO A05 in 2000 play it! roeder mathias defeats white's mohamed hossein in 84 moves | 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. d4 cxd4 6. Qxd4 Nc6 7. Qf4 g6 8. Qh4 h6 9. Nc3 Bg7 10. Qf4 Na5 11. O-O Nh5 12. Qh4 Rc8 13. Nd2 Bf6 14. Qg4 Bxg2 15. Kxg2 Bxc3 16. bxc3 Qc7 17. Qd4 Nf6 18. Ne4 Qc6 19. f3 Nxc4 20. Rd1 d5 21. Nxf6+ exf6 22. Qxd5 Qxd5 23. Rxd5 Ke7 24. Kf2 f5 25. a4 Ke6 26. Rd4 g5 27. e4 Rhd8 28. exf5+ Kxf5 29. Rxd8 Rxd8 30. Be3 Rd3 31. Bd4 Rd2+ 32. Kg1 f6 33. Re1 Ne5 34. Bxe5 fxe5 35. Re3 h5 36. h3 Rc2 37. Kf1 h4 38. gxh4 Kf4 39. Re2 Rxe2 40. Kxe2 gxh4 41. Kf2 a6 42. c4 a5 |
| ECO A05 in 2006 play it! roeder mathias defeats white's aguettaz maxime in 66 moves | 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. c4 dxc4 5. Qc2 Qd5 6. Nc3 Qh5 7. Ne4 Nxe4 8. Qxe4 Qd5 9. Qf4 f6 10. O-O e5 11. Qh4 g5 12. Qh5+ Qf7 13. Qxf7+ Kxf7 14. Ne1 Bc5 15. Kh1 h5 16. d3 h4 17. dxc4 Bg4 18. Nd3 Bxe2 19. Nxc5 h3 20. Re1 hxg2+ 21. Kxg2 Bxc4 22. Nxb7 Bd5+ 23. Kg1 Na6 24. Nd6+ Ke6 25. Ne4 g4 26. h4 gxh3 27. Kh2 Rad8 28. Nc3 Nb4 29. Re2 Bf3 30. Rd2 Nd3 31. Na4 e4 32. b3 Ne5 33. Nc5+ Kf5 |
| ECO A04 in 1995 play it! roeder mathias defeats white's olcayoz alper in 132 moves | 1. Nf3 d6 2. c4 g6 3. Nc3 Bg7 4. d4 Nf6 5. e4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. bxa5 c5 11. Nd2 Rxa5 12. Nb3 Ra6 13. a4 Nd7 14. a5 f5 15. f3 Kh8 16. Bd2 Ng8 17. Na4 Bh6 18. Bxh6 Nxh6 19. Qd2 f4 20. Qc3 g5 21. g4 Ng8 22. Rfb1 Ne7 23. Nb6 Ng6 24. Nxc8 Qxc8 25. Ra2 h5 26. h3 Nh4 27. Bd1 Nf6 28. Rh2 Qc7 29. Rhb2 Qc8 30. Rh2 Kg7 31. Nc1 Rf7 32. Nd3 Qc7 33. Rb5 b6 34. axb6 Rxb6 35. Rxb6 Qxb6 36. Rb2 Qa6 37. Rb3 Rb7 38. Rxb7+ Qxb7 39. Qb2 Qa6 40. Qc3 Qa2 41. Ne1 Kg6 42. Qc2 Qa1 43. Kf1 Qa3 44. Qb3 Qc1 45. Qc2 Qe3 46. Qd3 Qd4 47. Qxd4 exd4 48. Ba4 Kf7 49. Ke2 Ng6 50. Nd3 hxg4 51. hxg4 Ke7 52. Kd2 Ng8 53. Bb3 Nh6 54. Bd1 Nf7 55. Be2 Nfe5 56. Ne1 Nh4 57. Kc2 Kd7 58. Kb2 Kc7 59. Kb3 Kb6 60. Ka4 d3 61. Bd1 d2 62. Nc2 Nxc4 63. Kb3 Ne5 64. Kc3 Nhxf3 65. Na3 Nh2 66. Kxd2 Nhxg4 |
| ECO A05 in 2004 play it! roeder mathias defeats white's hillenbrand mich in 74 moves | 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. b3 Bg4 5. h3 Bh5 6. Bb2 e6 7. d3 Nbd7 8. Nbd2 Bd6 9. O-O O-O 10. c4 Re8 11. Rc1 a5 12. Qc2 a4 13. e4 dxe4 14. Nxe4 Nxe4 15. dxe4 Bxf3 16. Bxf3 axb3 17. axb3 Be5 18. Bxe5 Nxe5 19. Qc3 Qd4 20. Bg2 Qxc3 21. Rxc3 c5 22. f4 Nc6 23. e5 Nd4 24. Rd3 Ra3 25. Rfd1 b6 26. b4 Ra6 27. Rxd4 cxd4 28. Rxd4 Ra1+ 29. Kf2 Ra2+ 30. Kg1 Rc2 31. Bc6 Rc8 32. b5 g6 33. g4 Rc7 34. h4 Kg7 35. h5 Ra7 36. Bg2 Ra1+ 37. Bf1 Rcc1 |
| ECO A05 in 1993 play it! roeder mathias defeats white's schoeber peter in 60 moves | 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. Nc3 Bg7 7. d4 cxd4 8. Qxd4 Nc6 9. Qh4 h6 10. Nd5 Rc8 11. Bd2 e6 12. Nxf6+ Bxf6 13. Qf4 Bxb2 14. Rab1 Bg7 15. c5 O-O 16. Qa4 d6 17. cxb6 axb6 18. Be3 Ra8 19. Qb3 Ne7 20. Bxb6 Qd7 21. Rfc1 Bd5 22. Qd1 Bxa2 23. Rc7 Qe8 24. Nd4 Bxb1 25. Bxa8 Qxa8 26. Rxe7 Be4 27. Nf3 Rb8 28. Qxd6 Bf8 29. Bd4 Bxf3 30. exf3 Rd8 |
| ECO A05 in 1996 play it! roeder mathias defeats white's fancsy imre in 46 moves | 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. Nc3 Bg7 7. d4 cxd4 8. Qxd4 Nc6 9. Qf4 Na5 10. Rb1 Nh5 11. Qh4 Rc8 12. Nd2 Bxg2 13. Kxg2 Bf6 14. Qe4 Bxc3 15. bxc3 Qc7 16. Qd4 f6 17. Rd1 Ng7 18. Kg1 Ne6 19. Qd3 Nc6 20. Rb5 Ne5 21. Qd5 Nxc4 22. Nxc4 Qxc4 23. Qxc4 Rxc4 |
| ECO A13 in 1997 play it! roeder mathias defeats white's miezis normunds in 118 moves | 1. c4 e6 2. e4 d5 3. exd5 exd5 4. d4 Bb4+ 5. Nc3 Nf6 6. Bd3 O-O 7. Nf3 Re8+ 8. Be3 dxc4 9. Bxc4 Be6 10. Bxe6 Rxe6 11. O-O Nc6 12. Qc2 Nd5 13. Ng5 Rg6 14. Qf5 Nf6 15. Ne2 Qd5 16. Ng3 Re8 17. Nf3 Qxf5 18. Nxf5 Nd5 19. a3 Bf8 20. Rac1 Rf6 21. Ng3 g6 22. Rfd1 h6 23. Rd3 a6 24. Ne5 Nxe3 25. Rxe3 Nxd4 26. Ng4 Rc6 27. Nxh6+ Kg7 28. Rd1 Ne6 29. Ng4 Rb6 30. Re2 f5 31. Ne3 f4 32. Nd5 fxg3 33. Nxb6 gxf2+ 34. Kxf2 Bc5+ 35. Kg3 Bxb6 36. Rde1 Kf7 37. Rf1+ Ke7 38. Rfe1 Kd7 39. Rd1+ Nd4 40. Red2 Re4 41. Rf1 Ke7 42. Kh3 Ne6 43. g3 a5 44. Kg2 a4 45. h4 Bd4 46. Rh1 Re3 47. h5 gxh5 48. Rxh5 Rb3 49. Rh7+ Kd6 50. Rh4 c5 51. Rg4 b5 52. Kf1 Ke5 53. Re2+ Kf5 54. Rge4 Rxg3 55. Ke1 Nf4 56. Re8 Nxe2 57. Kxe2 Rb3 58. Kd2 Rxb2+ 59. Kd3 Rb3+ |
| ECO A10 in 2000 play it! roeder mathias defeats white's kortschnoj vikto in 48 moves | 1. c4 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. f3 O-O 6. Be3 Nbd7 7. Qd2 c5 8. d5 Ne5 9. h3 Nh5 10. Bf2 f5 11. exf5 Rxf5 12. g4 Rxf3 13. O-O-O Ng3 14. Bxg3 Rxg3 15. Qf4 Rxc3+ 16. bxc3 Qa5 17. Qd2 Bd7 18. Kb1 Rf8 19. Be2 Rf2 20. Qe3 Qb6+ 21. Ka1 Nxc4 22. Qc1 Qb4 23. Rd3 Bb5 24. h4 Na3 |
| ECO A16 in 2006 play it! roeder mathias defeats white's van rij gert in 42 moves | 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. d4 cxd4 5. Nxd4 Nc6 6. g3 Qb6 7. Nb3 Ne5 8. Nd2 Bc5 9. Nde4 Nxe4 10. Nxe4 Bb4+ 11. Nc3 Qc6 12. Rg1 Nxc4 13. Qd4 e5 14. Qd3 d5 15. Bg2 Be6 16. Kf1 Rd8 17. e4 Bxc3 18. Qxc3 d4 19. Qb4 a5 20. Qe1 Qb5 21. Qe2 d3 |
| ECO A15 in 2003 play it! roeder mathias defeats white's taddei benoit in 128 moves | 1. c4 Nf6 2. g3 c6 3. Bg2 d5 4. Nf3 dxc4 5. Qc2 Be6 6. Ng5 Bd5 7. e4 h6 8. Nh3 Be6 9. Nf4 Bc8 10. e5 Nd5 11. Qxc4 Nxf4 12. Qxf4 Na6 13. O-O Nc7 14. Nc3 Ne6 15. Qc4 Nd4 16. Ne2 Nxe2+ 17. Qxe2 Bf5 18. Qc4 Be6 19. Qb4 Qb6 20. Qxb6 axb6 21. d3 O-O-O 22. Be3 Kc7 23. Rfd1 Bd5 24. f3 e6 25. Rdc1 Ra8 26. a3 Ra4 27. Rab1 b5 28. Bc5 Bxc5+ 29. Rxc5 Rha8 30. f4 Kb6 31. Rc2 Rd8 32. Bxd5 Rxd5 33. Rd1 Rad4 34. Rcd2 b4 35. axb4 Rb5 36. Kf2 Rdxb4 37. Rb1 Kc5 38. Ke3 Kd5 39. h4 h5 40. Rg2 f6 41. exf6 gxf6 42. Rh2 f5 43. Re2 Rb3 44. Rc2 c5 45. Ke2 R5b4 46. Ke3 b6 47. Rd2 e5 48. fxe5 Kxe5 49. Re2 Re4+ 50. Kd2 Rxe2+ 51. Kxe2 Kd4 52. Kf3 Kxd3 53. Kf4 Kc2 54. Rg1 Rb4+ 55. Kg5 Rg4+ 56. Kxh5 Kxb2 57. Rf1 Rxg3 58. Rxf5 c4 59. Kh6 Rb3 60. Rf2+ Kc1 61. h5 c3 62. Kg7 c2 63. h6 Rg3+ 64. Kh8 Kb1 |
| ECO A10 in 1995 play it! roeder mathias defeats white's roos celine in 80 moves | 1. c4 g6 2. Nc3 Bg7 3. Nf3 d6 4. d4 Nf6 5. g3 O-O 6. Bg2 Nc6 7. O-O Rb8 8. h3 a6 9. e4 b5 10. cxb5 axb5 11. a3 b4 12. axb4 Nxb4 13. e5 Nfd5 14. Qe2 c6 15. Rd1 f6 16. Nxd5 Nxd5 17. exd6 exd6 18. Nd2 Kh8 19. Ne4 Re8 20. Qc4 Bf5 21. Nc3 Nb4 22. d5 c5 23. Be4 Nc2 24. Bxc2 Bxc2 25. Rf1 Qd7 26. Qa6 g5 27. Kg2 h6 28. Qc6 Qxc6 29. dxc6 Rbc8 30. Ra7 Rxc6 31. Be3 d5 32. Rc1 Bg6 33. Nb5 d4 34. Bxd4 Be4+ 35. f3 cxd4 36. Rxc6 Bxc6 37. Nxd4 Bd5 38. Rd7 Be6 39. Rd6 Bf7 40. b4 Rb8 |
| ECO A10 in 2003 play it! roeder mathias defeats white's bogdanov emil in 74 moves | 1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 e5 5. d3 f5 6. e4 Nf6 7. Nge2 O-O 8. O-O c6 9. h3 Na6 10. Be3 Be6 11. b3 f4 12. gxf4 Nh5 13. f5 gxf5 14. exf5 Bxf5 15. Ng3 Nf4 16. Nxf5 Rxf5 17. Ne4 Qe7 18. Ng3 Rf7 19. Qg4 Kh8 20. Kh2 Rg8 21. Nf5 Qf6 22. Bxf4 exf4 23. Nh4 Bh6 24. Qh5 Rg5 25. Qd1 Rxg2+ 26. Kxg2 Qxh4 27. Qf3 Nc7 28. Rae1 Qf6 29. Kh1 Qf5 30. Rg1 Bf8 31. Rg4 Ne6 32. Qg2 Bg7 33. Re4 d5 34. cxd5 Qxd5 35. Qf3 Rf8 36. Kg2 Ng5 37. Rxg5 Qxg5+ |
| ECO A10 in 1998 play it! roeder mathias defeats white's vidarte morales in 60 moves | 1. c4 g6 2. d4 Bg7 3. e4 d6 4. Nc3 Nf6 5. f3 O-O 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. Nxd5 Be6 10. Ne2 Bxd5 11. cxd5 a6 12. Nc3 Nbd7 13. Rc1 h6 14. Be3 b5 15. b3 Re8 16. Be2 Nb6 17. O-O b4 18. Nd1 Kh7 19. Kh1 Re7 20. Nb2 Nfxd5 21. Bf2 Nc3 22. Nc4 f5 23. Nxb6 Qxb6 24. Bd3 fxe4 25. Bxe4 Nxe4 26. fxe4 Rxe4 27. Bg3 Rd4 28. Qe3 Ra7 29. Rce1 Qc6 30. Bf2 Rf7 |
| ECO A16 in 2000 play it! roeder mathias defeats white's vijayalakshmi su in 116 moves | 1. c4 Nf6 2. Nc3 c5 3. Nf3 b6 4. e3 g6 5. Be2 Bg7 6. O-O O-O 7. d4 d6 8. d5 e5 9. dxe6 fxe6 10. Ng5 a6 11. Qd3 Qe7 12. Rd1 Rd8 13. Na4 Qc7 14. Qb3 b5 15. cxb5 d5 16. b6 Qc6 17. Nxc5 Qxc5 18. b7 Ra7 19. bxc8=Q Qxc8 20. Qb6 Nc6 21. Bd2 Nd7 22. Qb3 Rb7 23. Qa4 Nc5 24. Qa3 Ne4 25. Nxe4 Bxb2 26. Nd6 Qb8 27. Qxa6 Rb6 28. Qa4 Bxa1 29. Nb5 Be5 30. Qg4 Bxh2+ 31. Kh1 Ne5 32. Qh4 Nc4 33. Bc3 Rc8 34. a4 Be5 35. Be1 Qa8 36. Nd4 Qxa4 37. Nf3 Bg7 38. Qe7 Qe8 39. Qa7 Ra8 40. Qc7 Qf7 41. Qc5 Rbb8 42. Ng5 Qf5 43. Nh3 Rc8 44. Qe7 Qf6 45. Qb7 Qb2 46. Qxb2 Bxb2 47. Bg4 Rc6 48. Ng5 Raa6 49. e4 d4 50. Be2 Ra1 51. Rxa1 Bxa1 52. Nxe6 Bc3 53. Bxc3 dxc3 54. Nd4 Na3 55. Bd1 Rd6 56. Bb3+ Kg7 57. Ne2 c2 58. Kh2 Rd2 |
| ECO A02 in 2002 play it! roeder mathias defeats white's valbuena alvaro in 50 moves | 1. f4 c5 2. Nf3 g6 3. e4 Bg7 4. c3 d5 5. e5 Nh6 6. d4 cxd4 7. cxd4 O-O 8. Bd3 Bg4 9. h3 Bxf3 10. Qxf3 Nc6 11. Be3 Qb6 12. Qf2 f6 13. Nc3 fxe5 14. Bd2 Nb4 15. Bb1 exd4 16. Na4 Qb5 17. a3 Nc6 18. Bc2 d3 19. Bd1 Bd4 20. Qf3 Ne5 21. Qg3 Nf5 22. Qg5 h6 23. Nc3 Bxc3 24. Bxc3 d2+ 25. Kxd2 Nc4+ |
| ECO A02 in 1999 play it! roeder mathias defeats white's ramirez ram in 88 moves | 1. f4 c5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nc6 5. O-O d6 6. Nc3 e6 7. e3 Nge7 8. b3 O-O 9. Bb2 e5 10. fxe5 dxe5 11. e4 h6 12. d3 Be6 13. Nd2 f5 14. Bh3 Qd7 15. Ne2 Nd4 16. a3 Nec6 17. Rc1 Kh7 18. Qe1 Rae8 19. Nc3 f4 20. Bxe6 Qxe6 21. Kg2 g5 22. Nd5 Rf7 23. Nf3 Nxf3 24. Rxf3 h5 25. Qd2 Bh6 26. Qd1 g4 27. Rf1 Ref8 28. Rb1 fxg3 29. Rxf7+ Qxf7 30. Qe2 Qf2+ 31. Qxf2 Rxf2+ 32. Kxg3 Rxc2 33. h3 Bg5 34. Bc3 Kg6 35. Rb2 Bf4+ 36. Kh4 Rxb2 37. Bxb2 g3 38. Ne3 Bxe3 39. Kxg3 Nd4 40. Bxd4 exd4 41. Kf3 Bg5 42. a4 Kf6 43. Kg3 Ke5 44. Kf3 Bh4 |
| ECO A01 in 2002 play it! roeder mathias defeats white's tallarico tallar in 92 moves | 1. b3 d5 2. Nf3 Bg4 3. Ne5 Bf5 4. Bb2 f6 5. Nf3 e5 6. d4 e4 7. Nfd2 Be6 8. e3 f5 9. c4 c6 10. Qc1 Nf6 11. Ba3 Be7 12. Bxe7 Qxe7 13. Qa3 Qxa3 14. Nxa3 Ke7 15. Be2 Nbd7 16. O-O g5 17. cxd5 Nxd5 18. Bc4 N7f6 19. Bxd5 cxd5 20. Rac1 Rac8 21. h3 Bd7 22. f3 a5 23. Rfe1 b5 24. b4 Rxc1 25. Rxc1 axb4 26. Nc2 Rc8 27. Nb3 Rc4 28. Kf2 f4 29. Nd2 fxe3+ 30. Kxe3 Rc3+ 31. Ke2 Bf5 32. fxe4 Bxe4 33. Nxe4 dxe4 34. Kd2 e3+ 35. Kd1 Nd5 36. Ne1 Ra3 37. Nf3 Rxa2 38. Rc5 Kd6 39. Nxg5 Nc3+ 40. Kc1 Rxg2 41. Re5 b3 42. Ne4+ Nxe4 43. Rxe4 b2+ 44. Kb1 e2 45. Ka2 b1=B+ 46. Kxb1 Rg1+ |
| ECO A01 in 2000 play it! roeder mathias defeats white's debree alain in 65 moves | 1. b3 d5 2. Bb2 Bg4 3. Nf3 Bxf3 4. exf3 e6 5. f4 Nf6 6. Be2 g6 7. O-O Bg7 8. d4 O-O 9. Nd2 Qd6 10. g3 c5 11. Ba3 Nbd7 12. c3 Rfc8 13. Bd3 Qb6 14. Bb2 a5 15. Rb1 Ne8 16. Nf3 Nd6 17. Ne5 Nf6 18. g4 Nfe4 19. Nd7 Qc7 20. Nxc5 Nxc5 21. dxc5 Qxc5 22. Rc1 a4 23. Bb1 b5 24. Qf3 a3 25. Ba1 f5 26. gxf5 gxf5 27. Kh1 Kh8 28. Rg1 Bf6 29. Rce1 Ne4 30. Bxe4 dxe4 31. Qh5 Qe7 32. f3 exf3 33. Qxf3 |
| ECO A00 in 1997 play it! roeder mathias defeats white's soriano ignacio in 74 moves | 1. Nc3 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 d6 5. g3 e6 6. Bg2 Be7 7. O-O O-O 8. a4 d5 9. f4 Nc6 10. e3 e5 11. fxe5 Nxe5 12. Nf5 Be6 13. Nxd5 Nxd5 14. Bxd5 Qc7 15. Bxe6 fxe6 16. Nd4 Qd7 17. c3 Qd5 18. Rf4 Bc5 19. e4 Qc4 20. Kg2 Nd3 21. Rf3 Rxf3 22. Nxf3 Qxe4 23. b4 Rf8 24. Bf4 e5 25. bxc5 exf4 26. g4 Ne5 27. h3 h6 28. c4 Kh8 29. Ra2 Nxc4 30. Qe2 Ne3+ 31. Kh2 Re8 32. Qf2 Rd8 33. g5 Rd3 34. gxh6 gxh6 35. Ne1 Rd1 36. Qh4 Kg7 37. Qf2 Rxe1 |