| ECO A05 in 2002 play it! quednau hans joa defeats white's naundorf maik in 30 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Nh5 10. Re1 f5 11. Ng5 Nf6 12. Bf3 c6 13. Be3 Kh8 14. a4 h6 15. Ne6 Bxe6 |
| ECO A16 in 2004 play it! quednau hans joa defeats white's weber daniel in 74 moves | 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Bg5 a6 10. Bxf6 Bxf6 11. Qd3 Be7 12. Rfd1 Ra7 13. a4 O-O 14. Qe3 Ra8 15. Ne4 Qc7 16. Qf4 e5 17. Qe3 Nc6 18. Ne1 Nd4 19. Qd3 Rac8 20. b3 f5 21. Nc3 Bxg2 22. Nxg2 Bd8 23. Rab1 Qf7 24. Ne3 f4 25. Ned5 Bg5 26. Nxb6 Rce8 27. g4 f3 28. e3 Qe6 29. h3 Qh6 30. Kh2 Re6 31. Qf1 Bf4+ 32. exf4 Rxf4 33. Ncd5 Rxg4 34. Ne3 Qf4+ 35. Kh1 Rh4 36. Nbd5 Qg5 37. Kh2 Reh6 |
| ECO A13 in 1975 play it! quednau hans joa defeats white's lelgemann ludwig in 68 moves | 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bh4 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Rc1 Be6 12. Qa4 c5 13. Qa3 Rc8 14. Bb5 Qb7 15. O-O c4 16. Qd6 a6 17. Ba4 b5 18. Bc2 Nd7 19. h3 Nf6 20. Rfd1 b4 21. Bb1 a5 22. Ne1 Ra6 23. Qh2 a4 24. f3 a3 25. g4 axb2 26. Qxb2 Bd7 27. Qf2 Ba4 28. Rd2 Re8 29. Rb2 Rb6 30. Bc2 Bxc2 31. Nxc2 Ra8 32. Rcb1 Ra4 33. Ne1 Ne8 34. Qc2 Rxa2 |
| ECO A03 in 2005 play it! quednau hans joa defeats white's rennert ralf in 94 moves | 1. f4 d5 2. b3 Bg4 3. h3 Bh5 4. g4 e6 5. Nf3 Bg6 6. Bb2 Nf6 7. e3 h6 8. Rg1 Nbd7 9. Nc3 c6 10. Qe2 Qa5 11. a3 Bh7 12. h4 Ne4 13. Na2 O-O-O 14. b4 Qc7 15. d3 Nd6 16. Kd2 Rg8 17. Bg2 Be7 18. Rgb1 Nb6 19. Bd4 Kb8 20. Nc3 Nd7 21. Qf2 f6 22. a4 g5 23. hxg5 hxg5 24. e4 Nxe4+ 25. dxe4 dxe4 26. Bxa7+ Ka8 27. Nd4 Qxf4+ 28. Ke1 Qxf2+ 29. Kxf2 Kxa7 30. Nxe6 Ne5 31. Nxd8 Rxd8 32. Bxe4 Nxg4+ 33. Ke2 f5 34. Bd3 Re8 35. Kd2 Ne5 36. b5 g4 37. bxc6 bxc6 38. Rh1 Bg6 39. Ne2 Bg5+ 40. Kd1 Nxd3 41. cxd3 f4 42. Nd4 f3 43. Nxc6+ Ka6 44. Nb4+ Kb7 45. a5 g3 46. Kc2 Rc8+ 47. Kb3 g2 |
| ECO A02 in 2005 play it! quednau hans joa defeats white's wirtz marc in 82 moves | 1. f4 e5 2. fxe5 Nc6 3. Nf3 g5 4. h3 d6 5. d4 dxe5 6. Bxg5 f6 7. Be3 e4 8. Nfd2 f5 9. Bf2 Qg5 10. e3 Nf6 11. Nc3 Be6 12. g4 O-O-O 13. gxf5 Nxd4 14. h4 Qh6 15. exd4 e3 16. Bg3 exd2+ 17. Qxd2 Qxd2+ 18. Kxd2 Bxf5 19. Be5 Bh6+ 20. Ke1 Rhf8 21. Be2 Bxc2 22. Rf1 Nd7 23. Rxf8 Rxf8 24. Bg3 a6 25. Bf2 Nf6 26. Bg3 Bg6 27. Rd1 Nh5 28. Be5 Nf4 29. Bf1 Bh5 30. Ne2 Re8 31. Nxf4 Bxf4 32. Be2 Bxe2 33. Kxe2 Bxe5 34. dxe5 Rxe5+ 35. Kf3 Rf5+ 36. Ke3 Rb5 37. b3 Rb4 38. h5 Rh4 39. Rd5 b6 40. Kd3 Rb4 41. Rf5 Rb5 |
| ECO A02 in 2005 play it! quednau hans joa defeats white's kreuchauf olaf in 30 moves | 1. f4 e5 2. fxe5 Nc6 3. Nf3 g5 4. d4 g4 5. Ng5 d5 6. exd6 Bxd6 7. c3 f5 8. e4 h6 9. e5 Qe7 10. Bb5 Bxe5 11. Bxc6+ bxc6 12. dxe5 hxg5 13. Qd3 Rb8 14. b3 Rb5 15. O-O Rd5 |
| ECO A00 in 1967 play it! quednau hans joa defeats white's vogel frank in 40 moves | 1. b4 d5 2. Bb2 Nf6 3. e3 e6 4. b5 c5 5. Nf3 Bd6 6. c4 Nbd7 7. Be2 O-O 8. d4 b6 9. Nc3 Bb7 10. a4 Rc8 11. cxd5 exd5 12. dxc5 bxc5 13. Qb3 Re8 14. O-O d4 15. Nd1 c4 16. Bxc4 Bxf3 17. gxf3 Rxc4 18. Qxc4 Ne5 19. Qc1 Qa8 20. e4 Nxf3+ |
| ECO A00 in 2005 play it! quednau hans joa defeats white's fricke dirk in 48 moves | 1. c3 Nf6 2. d4 d5 3. Bf4 e6 4. e3 Bd6 5. Bxd6 cxd6 6. Nf3 O-O 7. Bd3 Nc6 8. O-O e5 9. Nfd2 Be6 10. Qb3 Rb8 11. Na3 b5 12. Nc2 Na5 13. Qb4 Nc4 14. Rfd1 a5 15. Qb3 Bg4 16. f3 e4 17. Be2 exf3 18. Nxf3 Ne4 19. h3 Bxh3 20. gxh3 a4 21. Qb4 Qf6 22. Nce1 Nxe3 23. Rd2 Qg6+ 24. Kh1 Qg3 |
| ECO B97 in 1992 play it! quednau hans joa defeats white's gromotka harry in 102 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Qc7 9. Bxf6 gxf6 10. Qd4 Rg8 11. O-O-O Be7 12. g3 Nc6 13. Qf2 Bd7 14. Bg2 Na5 15. Nxa5 Qxa5 16. Qd4 Rc8 17. e5 fxe5 18. fxe5 d5 19. Rhf1 Rc4 20. Qf2 Rf8 21. Rd3 Qc7 22. Qe2 d4 23. Rfd1 Rxc3 24. bxc3 dxc3 25. Rf1 Bg5+ 26. Kd1 Qb6 27. Ke1 Bb5 28. Qe4 Bxd3 29. Qxd3 Ke7 30. Qe4 Rb8 31. Ke2 Qb5+ 32. Ke1 Ke8 33. Qxh7 Qxe5+ 34. Qe4 Qd6 35. Rf3 Kf8 36. Rd3 Qb6 37. Qh7 Qb1+ 38. Kf2 Qxc2+ 39. Kf3 Re8 40. Qh8+ Ke7 41. Qxc3 Rc8 42. Qxc2 Rxc2 43. h4 Bd2 44. Rb3 b5 45. Ra3 Be1 46. Bh1 a5 47. Re3 Bd2 48. Re5 Rb2 49. Rh5 Bc3 50. a3 a4 51. Rh7 b4 |
| ECO B33 in 2004 play it! quednau hans joa defeats white's gross karl in 70 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. O-O Bxd5 13. exd5 Ne7 14. c3 Bg7 15. Qh5 e4 16. Bc2 Qc8 17. Rae1 O-O 18. Bb3 a5 19. Nxb5 a4 20. Bd1 Qc5 21. Nd4 Qxd5 22. Re3 Rfb8 23. Rh3 Rxb2 24. Qxh7+ Kf8 25. Rg3 Qe5 26. a3 Ra2 27. Nxf5 Nxf5 28. Rg5 Ra5 29. Bg4 Qf6 30. Rxf5 Rxf5 31. Bxf5 d5 32. Qh5 Qe5 33. Qg4 Qxc3 34. Qf4 Be5 35. Qg5 Bf6 |
| ECO B50 in 2002 play it! quednau hans joa defeats white's baer werner in 64 moves | 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Nxd4 a6 6. Bc4 e6 7. O-O b5 8. Bd3 Bb7 9. a3 Be7 10. Re1 Nbd7 11. b4 O-O 12. Bb2 Qb6 13. Nb3 Ne5 14. Na5 Rac8 15. a4 Nxd3 16. Qxd3 bxa4 17. Rxa4 d5 18. Nxb7 Qxb7 19. exd5 Bxb4 20. dxe6 fxe6 21. Rea1 a5 22. Nd1 Rcd8 23. Qc4 Nd5 24. Qf1 Bc5 25. Qe2 Nf4 26. Qg4 Bxf2+ 27. Nxf2 Qxb2 28. Rxa5 Qb6 29. Ra7 g6 30. R7a6 Nh3+ 31. gxh3 Qxf2+ 32. Kh1 Rd2 |
| ECO B25 in 2001 play it! quednau hans joa defeats white's warthmann stefan in 48 moves | 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 Nf6 7. O-O Rb8 8. a4 O-O 9. Be3 Ng4 10. Bf4 e5 11. Bd2 Be6 12. h3 Nf6 13. Qc1 Qd7 14. Kh2 d5 15. exd5 Nxd5 16. Nxd5 Bxd5 17. Bxd5 Qxd5 18. Bh6 Bxh6 19. Qxh6 f5 20. Nc3 Qd4 21. Rae1 c4 22. dxc4 Qxc4 23. Qe3 Nd4 24. b3 Qc6 |
| ECO B50 in 2002 play it! quednau hans joa defeats white's fitzian hans in 56 moves | 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nbd7 5. d3 g6 6. Nbd2 Bg7 7. O-O O-O 8. Re1 b6 9. h3 Bb7 10. Nf1 Qc7 11. Bf4 c4 12. N1d2 cxd3 13. Bxd3 Nc5 14. Bc2 Nh5 15. Bh2 e5 16. Nc4 Rad8 17. Ne3 Nxe4 18. Nd5 Bxd5 19. Qxd5 Nhf6 20. Qd3 Nc5 21. Qc4 b5 22. Qe2 a5 23. Rad1 b4 24. c4 Nfd7 25. b3 f5 26. Bg3 Nb6 27. Qd2 Rd7 28. Re2 Qb7 |
| ECO B95 in 2002 play it! quednau hans joa defeats white's wolf mathias in 26 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Be2 Be7 8. Qd3 Nbd7 9. f4 h6 10. Bh4 g5 11. fxg5 Ne5 12. Qd2 Nfd7 13. Nf3 hxg5 |
| ECO B33 in 2005 play it! quednau hans joa defeats white's heilmann michael in 86 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6 bxc6 7. Bd3 Be7 8. O-O O-O 9. h3 d5 10. exd5 cxd5 11. Qe2 e4 12. Bb5 Qc7 13. Rd1 Rd8 14. Be3 Bc5 15. Bd4 Bxd4 16. Rxd4 Rb8 17. Rad1 Be6 18. Rb1 Qc5 19. Rbd1 Rf8 20. a3 h6 21. Rb4 Rfc8 22. Rd2 Rc7 23. Na4 Qd6 24. c3 g5 25. Rbd4 Qe5 26. Ba6 g4 27. h4 g3 28. Qe3 gxf2+ 29. Rxf2 Ng4 30. Qf4 f6 31. Rf1 Rg7 32. Rd2 Kf7 33. Nc5 Ke7 34. Kh1 Qxf4 35. Rxf4 f5 36. Re2 Nf6 37. Kg1 Nh5 38. Rff2 Rg4 39. Re1 Rxh4 40. Rc2 f4 41. Nxe6 Kxe6 42. c4 e3 43. cxd5+ Kd7 |
| ECO B22 in 2000 play it! quednau hans joa defeats white's markus roland in 130 moves | 1. e4 c5 2. c3 e6 3. d4 d5 4. e5 Nc6 5. Nf3 Bd7 6. Be2 Nge7 7. O-O Nf5 8. Bd3 cxd4 9. Bxf5 exf5 10. Nxd4 Be7 11. Qb3 Nxd4 12. cxd4 Qb6 13. Qxb6 axb6 14. Nc3 Be6 15. b3 Kd7 16. a4 Rhc8 17. Nb5 Rc2 18. Ba3 Rac8 19. Rfd1 Bg5 20. Re1 f4 21. f3 Bh4 22. Red1 Bf2+ 23. Kh1 Be3 24. Rab1 Rf2 25. Rb2 Rcc2 26. Rxc2 Rxc2 27. Bf8 g6 28. Bh6 Rb2 29. Ra1 Bf5 30. Nc3 Bxd4 31. Nxd5 Bb1 32. Bg7 Kc8 33. Bf6 Rxb3 34. e6 Bxf6 35. Nxf6 fxe6 36. Nxh7 Kd7 37. g3 e5 38. Ng5 fxg3 39. hxg3 Kd6 40. Kg1 Kd5 41. Kf2 Kd4 42. Ne6+ Kd3 43. Nf8 Rb2+ 44. Kf1 Ke3 45. Ra3+ Bd3+ 46. Kg1 b5 47. axb5 Ke2 48. Nd7 Rxb5 49. Nf6 Rb1+ 50. Kg2 b5 51. Ra2+ Ke1 52. Nd7 e4 53. fxe4 Bxe4+ 54. Kg1 Bd5 55. Rc2 b4 56. Nc5 Rd1 57. Rb2 Rd2 58. Rxb4 Rg2+ 59. Kh1 Rc2+ 60. Ne4 Kf1 61. Rb1+ Ke2 62. Kh2 Bxe4 63. Rb3 g5 64. Kh3 Bf3 65. g4 Rc4 |
| ECO B97 in 2002 play it! quednau hans joa defeats white's kagel fred in 72 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2 9. Rb1 Qa3 10. f5 Nc6 11. fxe6 fxe6 12. Nxc6 bxc6 13. Rb3 Qa5 14. Be2 Be7 15. O-O Ra7 16. Bxf6 gxf6 17. Rb8 O-O 18. Qe3 d5 19. Kh1 Bc5 20. Qh3 f5 21. exf5 exf5 22. Qh6 Qc7 23. Rfb1 Qd6 24. Qxd6 Bxd6 25. R8b6 Be5 26. Na4 Bd4 27. R6b4 Be3 28. Nb6 Be6 29. Na4 f4 30. R4b2 Rg7 31. Rb8 a5 32. Bd3 Rxb8 33. Rxb8+ Kf7 34. Nb2 Rg5 35. Rb7+ Kf6 36. Rxh7 f3 |
| ECO B20 in 2005 play it! quednau hans joa defeats white's fritsche frank in 114 moves | 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 Bc5 6. Bc4 Ne7 7. e5 O-O 8. Ne4 Ng6 9. O-O Be7 10. b3 Nc6 11. Bb2 Qc7 12. Rc1 f6 13. exf6 gxf6 14. Ng3 d5 15. Bd3 Nf4 16. Bb1 Bd6 17. Nd4 Be5 18. Nh5 Nxh5 19. Qxh5 Qg7 20. Rxc6 bxc6 21. f4 Bxd4+ 22. Bxd4 Bd7 23. Qh4 Be8 24. Bc5 Bg6 25. Bxf8 Rxf8 26. Bxg6 hxg6 27. Rc1 Rc8 28. Qg4 f5 29. Qh4 Qd4+ 30. Kh1 Kf7 31. Qh7+ Qg7 32. Qh3 c5 33. Rd1 g5 34. fxg5 Qxg5 35. Rg1 a6 36. Qh7+ Kf6 37. h3 Qg3 38. Qh6+ Kf7 39. Qh7+ Qg7 40. Qh5+ Ke7 41. Qe2 Rc6 42. Rd1 Kd7 43. Qh5 Kc7 44. Qh4 Kb7 45. Kg1 Rc8 46. Qe1 Qf6 47. Qf2 Rc6 48. h4 Rc7 49. h5 f4 50. Rc1 Qf5 51. Qf3 Qe5 52. Rf1 Rf7 53. g4 Qd4+ 54. Kh1 e5 55. Rd1 Qe4 56. Qxe4 dxe4 57. Rd5 Re7 |
| ECO B90 in 2003 play it! quednau hans joa defeats white's maur rainer in 16 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. e5 Qc7 7. a4 Nbd7 8. a5 Qc5 |
| ECO B33 in 2005 play it! quednau hans joa defeats white's keller thomas in 26 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. O-O Bxd5 13. exd5 Ne7 |