| ECO A05 in 2001 play it! magyar otto defeats white's schmid siegfried in 86 moves | 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O c5 6. b3 d6 7. Bb2 Nbd7 8. d3 Be7 9. e4 O-O 10. Re1 a6 11. Nbd2 b5 12. Qe2 e5 13. Nf1 Ne8 14. Ne3 g6 15. Nd5 Ng7 16. Nd2 Bxd5 17. cxd5 Bg5 18. Rf1 f5 19. exf5 gxf5 20. a4 Qb6 21. a5 Qd8 22. Bc3 b4 23. Bb2 Bxd2 24. Qxd2 f4 25. Be4 Nf6 26. Qe2 Qd7 27. Bf3 Rae8 28. Kg2 Nf5 29. h3 fxg3 30. fxg3 Qg7 31. Bg4 Nxg4 32. hxg4 Nd4 33. Rxf8+ Qxf8 34. Qe4 Nxb3 35. Rh1 Re7 36. Rh5 Nd4 37. Rg5+ Kh8 38. Rh5 Rf7 39. Bc1 Rf2+ 40. Kh3 Qf7 41. Be3 Re2 42. Rh6 Qf1+ 43. Kh4 Nf3+ |
| ECO A05 in 2002 play it! magyar otto defeats white's lang stefan in 120 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. d3 g6 5. e4 d6 6. O-O Bg7 7. Nh4 e5 8. Nc3 c5 9. f4 h6 10. fxe5 dxe5 11. Be3 O-O 12. h3 Nc6 13. Kh2 Nd4 14. Qd2 Kh7 15. Rf2 Qd7 16. Raf1 Ne8 17. Nd5 Rc8 18. c3 Ne6 19. Qe2 N6c7 20. Qg4 Qxg4 21. hxg4 Nxd5 22. exd5 Nd6 23. c4 Rc7 24. g5 hxg5 25. Bxg5 f5 26. Bd2 Re8 27. Nf3 Bh6 28. Ng5+ Bxg5 29. Bxg5 Kg7 30. Re2 Nf7 31. Bd2 Rce7 32. Bc3 Kf6 33. Kg1 Nd6 34. a3 b5 35. b3 Ba6 36. Ba1 bxc4 37. bxc4 Kg5 38. Rfe1 e4 39. Bc3 Kg4 40. Bf6 Rf7 41. Bc3 Rff8 42. dxe4 Bxc4 43. Re3 fxe4 44. Bxe4 Kg5 45. Bg2 Rxe3 46. Rxe3 Nf5 47. Re5 Bb5 48. d6 Rc8 49. Re6 Kh6 50. g4 Nd4 51. Bd2+ Kg7 52. Re7+ Kh8 53. Bg5 Rf8 54. Bh6 Re8 55. Rxa7 Re1+ 56. Kh2 Re2 57. Kg3 Nc6 58. Bxc6 Bxc6 59. d7 Bxd7 60. Rxd7 Re8 |
| ECO A05 in 2000 play it! magyar otto defeats white's schatz werner in 56 moves | 1. Nf3 Nf6 2. d4 e6 3. e3 b6 4. Bd3 Bb7 5. Nbd2 c5 6. b3 cxd4 7. exd4 Be7 8. O-O O-O 9. Re1 Qc7 10. Bb2 d6 11. c4 Re8 12. Rc1 Nbd7 13. h3 Rac8 14. Bb1 Qb8 15. a3 b5 16. cxb5 Rxc1 17. Qxc1 Bxf3 18. Nxf3 Qxb5 19. Qc4 Qxc4 20. bxc4 Rb8 21. Bc3 Rc8 22. Nd2 Nb6 23. Bd3 Nxc4 24. Bxc4 d5 25. Bf1 Rxc3 26. a4 Bb4 27. Rb1 a5 28. Nb3 g6 |
| ECO A15 in 1989 play it! magyar otto defeats white's nemeth zoltan in 68 moves | 1. c4 Nf6 2. g3 c5 3. Bg2 Nc6 4. Nc3 g6 5. e4 Bg7 6. Nge2 O-O 7. d3 d6 8. O-O Rb8 9. h3 a6 10. f4 Ne8 11. Be3 Bd7 12. Qd2 b5 13. Rac1 Nd4 14. Bxd4 cxd4 15. Nd1 Qb6 16. Kh1 f5 17. b3 bxc4 18. Rxc4 fxe4 19. dxe4 e5 20. Nb2 d5 21. exd5 Nd6 22. fxe5 Rxf1+ 23. Bxf1 Bxe5 24. Rxd4 Rf8 25. Bg2 Rf2 26. Rd3 Bb5 27. Na4 Bxa4 28. bxa4 Qb1+ 29. Kh2 Nc4 30. d6 Nxd2 31. d7 Bf6 32. d8=Q+ Bxd8 33. Rxd8+ Kg7 34. Rxd2 Qb7 |
| ECO A16 in 1999 play it! magyar otto defeats white's orosz marianna in 74 moves | 1. c4 Nf6 2. Nc3 c5 3. b3 b6 4. e3 Bb7 5. Nf3 g6 6. Be2 Bg7 7. Bb2 O-O 8. O-O Nc6 9. d4 cxd4 10. Nxd4 Nxd4 11. exd4 d5 12. Bf3 Qd7 13. Qd3 dxc4 14. bxc4 Bxf3 15. gxf3 Rfd8 16. Ne2 Rac8 17. Rac1 Qb7 18. Ng3 Rc7 19. Rc2 e6 20. f4 Rdc8 21. Rfc1 Rd8 22. f3 Rcd7 23. Ne2 Nh5 24. Qe4 Qb8 25. Rd1 b5 26. c5 Nf6 27. Qe5 Nd5 28. Qxb8 Rxb8 29. Bc1 Nb4 30. c6 Rc7 31. f5 Nxc2 32. Bf4 Rbc8 33. Bxc7 Rxc7 34. fxe6 fxe6 35. d5 exd5 36. Rxd5 Rxc6 37. Rxb5 Rc8 |
| ECO A13 in 2003 play it! magyar otto defeats white's denk stefan in 106 moves | 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. cxd5 exd5 5. Bg2 Bd6 6. O-O O-O 7. d3 Re8 8. Nc3 c6 9. h3 h6 10. Qc2 Nbd7 11. e4 dxe4 12. dxe4 Bb4 13. e5 Nxe5 14. Nxe5 Rxe5 15. Bf4 Re8 16. Rfd1 Qa5 17. g4 Be6 18. Ne4 Nxe4 19. Bxe4 Rad8 20. a3 Rxd1+ 21. Rxd1 Be7 22. Rd4 a6 23. Bd2 Qc7 24. Bf4 Qc8 25. Qd2 Bf6 26. Rd3 Bxg4 27. hxg4 Rxe4 28. f3 Re8 29. g5 hxg5 30. Bxg5 Bxg5 31. Qxg5 Qe6 32. Rd8 f6 33. Qd2 Rxd8 34. Qxd8+ Kf7 35. Qc7+ Qe7 36. Qb6 g5 37. Qb3+ Kg7 38. Kf2 b5 39. Qc3 c5 40. Qd3 c4 41. Qd5 Qe5 42. Qb7+ Kg6 43. Qxa6 Qxb2+ 44. Ke3 Qc3+ 45. Kf2 Qd4+ 46. Kg2 Qc5 47. Qe6 Qd4 48. Qg8+ Kf5 49. Qc8+ Kf4 50. Qg4+ Ke3 51. f4 Qe4+ 52. Kg1 gxf4 53. Qh3+ f3 |
| ECO A13 in 1994 play it! magyar otto defeats white's magyar gy in 116 moves | 1. c4 e6 2. d4 Nf6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 d5 6. e3 dxc4 7. Qa4+ Bd7 8. Qxc4 Nc6 9. Bg2 Rc8 10. O-O Na5 11. Qe2 Qb6 12. Rd1 e5 13. Nf3 e4 14. Nd4 Bg4 15. f3 exf3 16. Bxf3 Bd7 17. b3 Bd6 18. Ba3 Bxa3 19. Nxa3 O-O 20. Rac1 a6 21. Nc4 Nxc4 22. Rxc4 Rxc4 23. Qxc4 Bg4 24. Qe2 Bxf3 25. Qxf3 Qc7 26. Rd2 Qc1+ 27. Qd1 Qxd1+ 28. Rxd1 Rc8 29. h3 g6 30. Kg2 Rc3 31. Kf2 h5 32. Re1 Ne4+ 33. Kf3 Ng5+ 34. Kg2 Kg7 35. Re2 Kf6 36. Rf2+ Ke7 37. Re2 Kd6 38. h4 Ne4 39. Kf3 Ke5 40. Rc2 f6 41. Rg2 Rc1 42. Ke2 Ra1 43. Kd3 Kd5 44. b4 Rf1 45. Ke2 Rb1 46. Nb3 Rb2+ 47. Kf3 Rxg2 48. Kxg2 Kc4 49. Na5+ Kxb4 50. Nxb7 Nc3 51. Kf3 Nxa2 52. Kf4 Nc3 53. e4 Ne2+ 54. Kf3 Nd4+ 55. Ke3 Nc6 56. Kd3 Na5 57. Nd6 Nb3 58. Nb7 Nc5+ |
| ECO A15 in 2001 play it! magyar otto defeats white's meulner klaus in 106 moves | 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 c5 5. e3 O-O 6. d4 cxd4 7. exd4 d6 8. Nge2 Nc6 9. h3 Bd7 10. O-O a6 11. Be3 Rb8 12. c5 dxc5 13. dxc5 Qc8 14. Kh2 Rd8 15. Qc1 Bf5 16. Rd1 e5 17. Rxd8+ Qxd8 18. Qd1 Be6 19. Qa4 Ne7 20. Rd1 Qc7 21. b4 Bd7 22. Qb3 Bc6 23. Bf1 Nf5 24. Bg5 Ne4 25. Nxe4 Bxe4 26. Nc3 Bf3 27. Nd5 Bxd1 28. Qxd1 Rd8 29. Bxd8 Qxd8 30. Ne3 Nd4 31. Bg2 Qb8 32. Qd3 Kf8 33. Nc4 Qc7 34. Na5 b6 35. cxb6 Qxb6 36. Qc4 Bf6 37. Qc5+ Qxc5 38. bxc5 Bd8 39. Nb7 Bc7 40. Bd5 Ke7 41. c6 Bb6 42. Kg2 a5 43. a4 Nc2 44. Bc4 Nb4 45. Bb5 Nd5 46. Kf1 Nc3 47. f3 Nxb5 48. axb5 a4 49. c7 Kd7 50. Nd6 Kxc7 51. Nc4 Bc5 52. Ke2 a3 53. b6+ Kc8 |
| ECO B30 in 1998 play it! magyar otto defeats white's kosa laszlo in 76 moves | 1. e4 c5 2. Nf3 Nc6 3. d3 g6 4. g3 Bg7 5. Bg2 e6 6. c3 d5 7. Qe2 Nge7 8. O-O b6 9. e5 h6 10. h4 a5 11. Re1 Ba6 12. Na3 Ra7 13. Nc2 O-O 14. Bf4 Kh7 15. Rad1 Rd7 16. Ne3 d4 17. Ng4 dxc3 18. bxc3 Rxd3 19. Qc2 c4 20. Qc1 Nf5 21. Nxh6 Bxh6 22. Bxh6 Nxh6 23. Ng5+ Kg7 24. Bxc6 Qc7 25. Bf3 Rfd8 26. Qf4 Qe7 27. g4 b5 28. Kh2 b4 29. Qc1 Bb5 30. Rf1 R3d4 31. Rde1 Bd7 32. Qd2 Rf4 33. Re4 Ra8 34. Rxc4 Rd8 35. Nxf7 Ba4 36. Rb1 Bd1 37. Rcxb4 Rdd4 38. a4 Bxf3 |
| ECO B33 in 1999 play it! magyar otto defeats white's mittelsteiner ho in 72 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. f3 O-O 9. Qd2 d5 10. exd5 Nb4 11. Bc4 Nbxd5 12. Bxd5 Nxd5 13. Nxd5 Qxd5 14. c3 b6 15. Bh6 Ba6 16. Bxg7 Kxg7 17. Kf2 Rad8 18. Rhd1 Qc5 19. Qe3 e5 20. Nb3 Qxe3+ 21. Kxe3 f5 22. Rd2 Rxd2 23. Nxd2 Rd8 24. c4 Rc8 25. b3 Kf7 26. Rd1 Rd8 27. Ke2 Bb7 28. Nb1 Rxd1 29. Kxd1 g5 30. Nc3 Bc6 31. Kd2 h5 32. g3 Bxf3 33. Ke3 Bc6 34. Ke2 Ke6 35. b4 e4 36. a3 Ke5 |
| ECO B33 in 1991 play it! magyar otto defeats white's mozes zoltan in 102 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O O-O 9. Kh1 Bd7 10. f4 Rc8 11. Nb3 a6 12. Bf3 b5 13. a3 Qc7 14. Qd2 Nb8 15. Nd4 Nc6 16. Nb3 Nb8 17. Rac1 Be6 18. Nd5 Bxd5 19. exd5 Nbd7 20. Rfe1 Rfe8 21. Qf2 Kf8 22. Nd2 Qb7 23. b3 Rc7 24. c4 bxc4 25. bxc4 Nc5 26. Bxc5 Rxc5 27. Rb1 Qc8 28. Rb6 Nd7 29. Rb3 Rc7 30. Qh4 Nc5 31. Rbe3 Qf5 32. Ne4 Nxe4 33. Rxe4 h5 34. Qf2 Bf6 35. Qe2 Qc8 36. g4 hxg4 37. Bxg4 Qb7 38. f5 g5 39. Qg2 Kg7 40. h4 Rh8 41. Bh3 Qb2 42. hxg5 Qxg2+ 43. Kxg2 Bxg5 44. Rb1 Kf6 45. Rb6 Rhc8 46. Rxa6 Rxc4 47. Rxc4 Rxc4 48. Kf3 Ke5 49. Ra5 Bf6 50. Bg4 Bh4 51. Bh5 Rf4+ |
| ECO C80 in 1997 play it! magyar otto defeats white's sleisz tamas in 66 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2 Be7 10. c3 O-O 11. Bc2 f5 12. exf6 Nxf6 13. Nb3 Bg4 14. Qd3 Ne4 15. Nbd4 Nxd4 16. Nxd4 Bd6 17. g3 Bc5 18. f3 Bh3 19. Re1 Nf6 20. Be3 Qd7 21. Nb3 Bd6 22. Bg5 c6 23. Re2 Rae8 24. Rae1 Rxe2 25. Rxe2 g6 26. Qd4 Re8 27. Rxe8+ Nxe8 28. g4 Ng7 29. Qf2 Ne6 30. Qh4 Qa7+ 31. Kh1 Nxg5 32. Bxg6 Nxf3 33. Nd4 Nxh4 |
| ECO C47 in 2001 play it! magyar otto defeats white's deglmann ludwig in 100 moves | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 d5 5. exd5 Nxd5 6. Bg2 Be7 7. O-O O-O 8. Re1 Nxc3 9. bxc3 Bf6 10. h3 Rb8 11. Bb2 g6 12. d4 exd4 13. cxd4 Be6 14. Qd3 b5 15. Ne5 Nxe5 16. dxe5 Be7 17. Qe3 c5 18. f4 h5 19. Rad1 Qc8 20. f5 Bxf5 21. e6 fxe6 22. g4 Bxc2 23. Rd2 Bf6 24. Bxf6 Rxf6 25. Rxc2 c4 26. Qe5 Rf7 27. gxh5 gxh5 28. Qxh5 Rb6 29. Re5 Qd8 30. Rg5+ Rg7 31. Rxg7+ Kxg7 32. Qg4+ Kh6 33. Qf4+ Qg5 34. Qf8+ Qg7 35. Qf4+ Qg5 36. Qf8+ Qg7 37. Qc5 Qg5 38. Qf2 e5 39. Qf8+ Qg7 40. Qe8 Qg6 41. Qe7 Qxc2 42. Qh4+ Kg7 43. Qe7+ Kg6 44. Qe8+ Kh6 45. Qf8+ Kg5 46. Qe7+ Kf4 47. Qf7+ Ke3 48. Qxa7 Qd1+ 49. Kh2 Qd4 50. Qa3+ Kd2 |
| ECO C45 in 2001 play it! magyar otto defeats white's egedi istvan in 78 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. g3 O-O 8. Bg2 Bxd4 9. cxd4 d5 10. e5 Qg6 11. Nc3 Nb4 12. O-O Bf5 13. Qd2 Nc2 14. Bg5 Nc6 15. Rac1 N2xd4 16. Be3 Ne6 17. Nxd5 Rfe8 18. f4 Rad8 19. Qf2 Rd7 20. b4 a6 21. a4 Ncd8 22. Rfd1 Kh8 23. b5 axb5 24. axb5 c6 25. Nc3 Rxd1+ 26. Rxd1 f6 27. Bb6 h6 28. exf6 Qxf6 29. Ne4 Bxe4 30. Bxe4 cxb5 31. Bb1 Nf8 32. Bc5 Nde6 33. Ba3 Rd8 34. Rxd8 Qxd8 35. Ba2 b6 36. h4 Qd3 37. Bb4 Nc5 38. Kh2 Nh7 39. Bf7 Nf6 |
| ECO C24 in 1995 play it! magyar otto defeats white's jozsa csaba in 76 moves | 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 Nc6 5. Nc3 d6 6. Bg5 h6 7. Bxf6 Qxf6 8. Nd5 Qd8 9. c3 a6 10. d4 Ba7 11. h3 O-O 12. O-O Re8 13. Re1 Nb8 14. a4 c6 15. Nb4 Nd7 16. Qb3 Qf6 17. a5 Nf8 18. Nd3 Re7 19. Re3 Be6 20. Rae1 Rae8 21. Bxe6 Nxe6 22. dxe5 dxe5 23. R3e2 Ng5 24. Nh2 h5 25. Nf1 Rd7 26. Nb4 Red8 27. Qc2 Qg6 28. Kh1 Ne6 29. g3 h4 30. Kh2 Ng5 31. Kg2 Qf6 32. Nh2 Rd6 33. Rf1 Qg6 34. Ng4 Qh5 35. f4 Nxh3 36. Kxh3 hxg3+ 37. Kg2 Qxg4 38. fxe5 Rh6 |
| ECO C77 in 2003 play it! magyar otto defeats white's marrero martin m in 86 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. O-O d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. d5 O-O 12. h3 Bd7 13. b3 h6 14. Nh2 Nh7 15. Ng4 Bg5 16. f4 exf4 17. Bxf4 Rae8 18. Qd3 c4 19. Qg3 Bxg4 20. hxg4 Bxf4 21. Rxf4 b4 22. cxb4 cxb3 23. Bxb3 Qb6+ 24. Qf2 Qxb4 25. Nd2 Ng5 26. Re1 Nxb3 27. axb3 Qb7 28. Qd4 f6 29. Nc4 Qxb3 30. Re3 Qb4 31. Qd3 Rc8 32. Nd2 Rfe8 33. Rf1 Qc5 34. Kh2 Qc2 35. Qd4 Qc5 36. Qd3 a5 37. Ra1 Qc2 38. Qd4 Rc5 39. Rb1 Rec8 40. Rb2 Qd1 41. Kg3 Rc2 42. Rxc2 Rxc2 43. Rd3 Rxd2 |
| ECO C83 in 2000 play it! magyar otto defeats white's reiser wolfgang in 104 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 O-O 11. Re1 Nc5 12. Bc2 Bg4 13. h3 Bh5 14. Nf1 Qd7 15. Ng3 Bg6 16. Nd4 Nxd4 17. cxd4 Ne6 18. Be3 Rad8 19. f4 Bh4 20. Kh2 Bxc2 21. Qxc2 f5 22. Rf1 g6 23. Rac1 Be7 24. Qc6 Kf7 25. Qxd7 Rxd7 26. Rc6 Ra8 27. a3 a5 28. Rfc1 Ra7 29. Rxe6 Kxe6 30. Rc6+ Bd6 31. Bd2 Rd8 32. exd6 Rxd6 33. Rc1 Kd7 34. Ne2 Ra8 35. Ng1 Rc6 36. Rxc6 Kxc6 37. Nf3 Kb6 38. Ne5 Rd8 39. b4 a4 40. Kg3 Re8 41. Kh4 h6 42. g4 Re6 43. gxf5 gxf5 44. Kh5 Kb7 45. Be1 Kc8 46. Bh4 c6 47. Bg5 hxg5 48. Kxg5 c5 49. dxc5 d4 50. Kxf5 Rxe5+ 51. fxe5 d3 52. e6 d2 |
| ECO B12 in 2002 play it! magyar otto defeats white's scheidt karl hei in 94 moves | 1. e4 c6 2. d4 d5 3. e5 Bf5 4. c4 e6 5. Nc3 Nd7 6. cxd5 cxd5 7. Qb3 Rb8 8. Be3 Ne7 9. Nf3 Nc6 10. Be2 Be7 11. O-O O-O 12. Qd1 Nb6 13. Rc1 Rc8 14. Ne1 Na5 15. Bd3 Bxd3 16. Nxd3 Nbc4 17. Bf4 Qb6 18. b3 Na3 19. Be3 Rc6 20. Qg4 Rfc8 21. Nc5 Qd8 22. f4 b6 23. N5a4 Bb4 24. Bd2 Nb7 25. Qf3 b5 26. Nb2 Bf8 27. f5 b4 28. Nca4 Rxc1 29. Bxc1 Qe8 30. Nd3 Nb5 31. Be3 Nc3 32. Nac5 Nxc5 33. dxc5 exf5 34. Qxf5 d4 35. Bd2 a5 36. Nf4 Rxc5 37. Nd3 Rd5 38. Kh1 Nxa2 39. Qe4 Qe6 40. Re1 Rd8 41. Bg5 Nc3 42. Qh4 Re8 43. Qxd4 Qxb3 44. Nf4 Qc2 45. g4 Qa4 46. e6 Qc6+ 47. Kg1 Bc5 |