| ECO A07 in 2001 play it! sommer sonja defeats white's hapala m in 72 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bf5 5. d3 h6 6. Nbd2 e6 7. b3 Be7 8. Bb2 Nbd7 9. Re1 O-O 10. e4 dxe4 11. dxe4 Bh7 12. Qe2 Qc7 13. e5 Nd5 14. c4 Nb4 15. Ne4 Bxe4 16. Qxe4 Nc5 17. Qb1 Nbd3 18. Re3 Nxb2 19. Qxb2 Rfd8 20. b4 Nd3 21. Qb3 Nxb4 22. Rb1 Rd7 23. a3 Na6 24. Rd3 Rxd3 25. Qxd3 Rd8 26. Qc3 Nc5 27. Ne1 Qd7 28. Bf3 Qd4 29. Qb4 Qxe5 30. Kg2 Rd7 31. Qa5 a6 32. Qb6 Rd2 33. Kh1 Qd4 34. Bg2 Qxf2 35. Qb4 Bg5 36. Qc3 Be3 |
| ECO A20 in 1996 play it! sommer sonja defeats white's hapala michaela in 103 moves | 1. c4 e5 2. g3 Nc6 3. Bg2 d6 4. e3 Be6 5. b3 g6 6. d4 exd4 7. exd4 Bg7 8. Ne2 Qd7 9. Nbc3 Bh3 10. O-O Nge7 11. d5 Bxg2 12. Kxg2 Ne5 13. f4 Ng4 14. h3 Nf6 15. Nd4 h5 16. Qd3 O-O-O 17. Bd2 Nf5 18. Nxf5 gxf5 19. Qd4 b6 20. h4 Ne4 21. Qd3 Rhg8 22. Rf3 Rde8 23. Re1 Qe7 24. Rfe3 Bxc3 25. Bxc3 Qxh4 26. c5 dxc5 27. Rh1 Qxh1+ 28. Kxh1 Nf2+ 29. Kg2 Nxd3 30. Rxd3 Re2+ 31. Kf3 Rxa2 32. Be5 Re8 33. d6 cxd6 34. Rxd6 Ra3 35. Rc6+ Kd7 36. Rd6+ Ke7 37. Rd3 Kf8 38. Bb2 Ra2 39. Bf6 b5 40. Be5 Kg8 41. Rd5 Ra3 42. Rxc5 Rxb3+ 43. Kg2 Rxe5 44. Rxe5 a5 45. Rxf5 a4 46. Rg5+ Kf8 47. Rxh5 a3 48. Rh8+ Kg7 49. Ra8 Rb2+ 50. Kf3 a2 51. Ke3 b4 52. Kd4 |
| ECO A25 in 1996 play it! sommer sonja defeats white's schwaninger ulri in 82 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. d3 Nge7 7. Rb1 h6 8. b4 Nf5 9. b5 Ncd4 10. Nxd4 Nxd4 11. e3 Ne6 12. O-O h5 13. Nd5 h4 14. g4 h3 15. Bh1 Qg5 16. e4 Nf4 17. Bxf4 exf4 18. Bf3 Kd8 19. Kh1 Rh4 20. Rg1 Bd4 21. Qe2 Be6 22. a4 Kd7 23. a5 Rb8 24. b6 axb6 25. axb6 c6 26. Nc7 Rbh8 27. Nxe6 fxe6 28. Qa2 Rb8 29. Qa7 Kc8 30. Qa2 Qc5 31. Rgf1 Qg5 32. c5 d5 33. exd5 exd5 34. Rbe1 Rh8 35. Re6 Bxc5 36. Rxc6+ bxc6 37. Qa6+ Kd8 38. Qa7 Qe5 39. Rb1 Re8 40. Be2 f3 41. Bf1 Bd6 |
| ECO A25 in 1994 play it! sommer sonja defeats white's schwaninger ulri in 120 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bb4 6. Bd2 O-O 7. Nf3 d6 8. O-O Bxc3 9. Bxc3 Qe8 10. Nd2 f4 11. e3 g5 12. Ne4 Qg6 13. Nxf6+ Qxf6 14. exf4 gxf4 15. Bd5+ Kh8 16. Qh5 Qg6 17. Qxg6 hxg6 18. h4 f3 19. Rfe1 Ne7 20. Be4 Nf5 21. Kh2 Kg7 22. Rh1 Nd4 23. Bxd4 exd4 24. b4 Bf5 25. Rae1 Rae8 26. Bxf5 Rxe1 27. Rxe1 Rxf5 28. Re7+ Rf7 29. Rxf7+ Kxf7 30. g4 c5 31. b5 d5 32. Kg3 dxc4 33. dxc4 Kf6 34. Kxf3 Ke5 35. h5 gxh5 36. gxh5 Kf5 37. h6 Kg6 38. h7 Kxh7 39. a4 Kg6 40. Ke4 b6 41. Kf4 Kf6 42. Ke4 Kg5 43. f3 Kg6 44. Kf4 Kf6 45. Ke4 Kg5 46. f4+ Kf6 47. f5 d3 48. Kxd3 Kxf5 49. Ke3 Ke5 50. Kd3 Kf4 51. Kd2 Ke4 52. Kc3 Ke3 53. Kc2 Kd4 54. Kb3 Kd3 55. a5 Kd4 56. axb6 axb6 57. Ka3 Kxc4 58. Ka4 Kc3 59. Ka3 c4 60. Ka2 Kd2 |
| ECO A25 in 2003 play it! sommer sonja defeats white's kirchmayr elisab in 60 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. e3 d6 6. Nge2 Nge7 7. a3 Be6 8. Nd5 Qd7 9. O-O O-O 10. Nxe7+ Qxe7 11. d3 f5 12. Qc2 Qf7 13. Rb1 Kh8 14. b3 Rad8 15. Bb2 d5 16. cxd5 Bxd5 17. Bxd5 Rxd5 18. b4 Rfd8 19. Rfd1 Qd7 20. d4 exd4 21. Nf4 Rd6 22. b5 Ne5 23. exd4 Nf3+ 24. Kg2 Nxd4 25. Qc4 c6 26. a4 b6 27. bxc6 Qxc6+ 28. Qxc6 Nxc6 29. Bxg7+ Kxg7 30. Ne6+ Rxe6 |
| ECO A15 in 1997 play it! sommer sonja defeats white's hapala michaela in 50 moves | 1. c4 Nf6 2. d4 e5 3. dxe5 Ne4 4. Qd4 Nc5 5. Bf4 Nc6 6. Qd1 d6 7. exd6 Qf6 8. Qd2 Ne4 9. Qe3 Be6 10. Nd2 Nxd6 11. Bxd6 Bxd6 12. Ngf3 O-O-O 13. Qc3 Qg6 14. a3 Rhe8 15. e3 Be7 16. g3 Bf6 17. Qc1 Bg4 18. h3 Bxf3 19. Nxf3 Qe4 20. Bg2 Nd4 21. Nxd4 Qxg2 22. Kd2 Rxd4+ 23. exd4 Bg5+ 24. Kc3 Bxc1 25. Raxc1 Qxf2 |
| ECO A25 in 1999 play it! sommer sonja defeats white's schwaninger ulri in 100 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 a5 5. a3 Bg7 6. b4 axb4 7. axb4 d6 8. Bg2 f5 9. b5 Nce7 10. Qb3 Nf6 11. d3 O-O 12. Nf3 Kh8 13. O-O Nd7 14. Bg5 Nc5 15. Qc2 h6 16. Bxe7 Qxe7 17. Nd5 Qd8 18. Nh4 Kh7 19. e4 f4 20. d4 exd4 21. Qd1 Ra4 22. Re1 Be6 23. Bf1 f3 24. Nxf3 Bg4 25. Be2 d3 26. Ng5+ Qxg5 27. Bxg4 Qe5 28. Nf4 Ra2 29. Nxd3 Nxd3 30. Qxd3 Rfxf2 31. Re2 Qc5 32. Kh1 Rfxe2 33. Bxe2 Qf2 34. Rf1 Qxe2 35. Qxe2 Rxe2 36. Rf7 Rxe4 37. Rxc7 Kg8 38. Kg2 Rd4 39. Kf3 b6 40. Rc6 Be5 41. Rxb6 Rxc4 42. Rb8+ Kf7 43. Rb7+ Ke6 44. b6 d5 45. Rh7 h5 46. b7 Rc7 47. Rxc7 Bxc7 48. Ke3 Ke5 49. h3 Bb6+ 50. Kd3 Ba7 |
| ECO C45 in 2006 play it! sommer sonja defeats white's hernandez zaida in 70 moves | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 d6 7. a4 a6 8. a5 Ba7 9. Nd5 Nge7 10. Bg5 Be6 11. Nxe7 Nxe7 12. Nd4 Qd7 13. Be2 Nc6 14. Nxe6 Qxe6 15. O-O O-O 16. Kh1 f5 17. exf5 Qxf5 18. f4 Rae8 19. Bd3 Qf7 20. Ra4 d5 21. Qg4 Ne7 22. Rb4 b6 23. axb6 Bxb6 24. Bxa6 Nf5 25. Bd3 Re3 26. Bxf5 Qxf5 27. Qxf5 Rxf5 28. Ra1 Rf8 29. c3 Re2 30. h3 Bf2 31. Rd1 h6 32. Rxd5 Bg3 33. Rd1 hxg5 34. Rb7 Rfe8 35. Rf1 Re1 |
| ECO C55 in 1993 play it! sommer sonja defeats white's mudrochova helen in 30 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. Nc3 d6 6. h3 O-O 7. Be3 Na5 8. Bb3 Nxb3 9. axb3 h6 10. Qd2 Kh7 11. Nh2 Nd7 12. Nd5 f5 13. O-O-O f4 14. Nxf4 exf4 15. Bxf4 Rxf4 |
| ECO C59 in 2006 play it! sommer sonja defeats white's menzi ezgi in 63 moves | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Bd6 11. d4 exd3 12. Nxd3 Qc7 13. h3 O-O 14. O-O Rd8 15. Bd2 Nc4 16. Qe1 Be6 17. Nc3 Rab8 18. b3 Nxd2 19. Qxd2 Bb4 20. f3 Qa5 21. Qe3 Bxc3 22. Rac1 Bd4 23. Qxd4 Rxd4 24. c3 Rd6 25. Nb4 c5 26. Nd3 Rbd8 27. Ne5 Qxa2 28. Bc4 Rd2 29. Kh1 Rxg2 30. Ng4 Bxg4 31. fxg4 Rh2+ 32. Kg1 |
| ECO C30 in 1999 play it! sommer sonja defeats white's graf jutta in 80 moves | 1. e4 e5 2. f4 Bc5 3. Nf3 d6 4. Nc3 Nf6 5. d3 Nc6 6. Na4 Bb6 7. Nxb6 axb6 8. Be2 O-O 9. O-O Qe7 10. fxe5 dxe5 11. h3 Be6 12. a3 Qc5+ 13. Kh2 Ne8 14. c3 Rd8 15. Qe1 Qe7 16. Qg3 f6 17. Nh4 g6 18. Nf5 Bxf5 19. exf5 Qg7 20. h4 Ne7 21. h5 gxf5 22. Qh3 h6 23. Rf3 Kh7 24. Rg3 Qf7 25. Bd2 Rg8 26. Rxg8 Qxg8 27. Rf1 Nd6 28. Rf3 Nf7 29. Rxf5 Nxf5 30. Qxf5+ Kg7 31. Bxh6+ Kxh6 32. Qxf6+ Kh7 33. Qf5+ Kh8 34. Bf3 Qh7 35. Qf6+ Qg7 36. Qf5 Nh6 37. Qe4 c6 38. g4 Nf7 39. Qf5 Ng5 40. Bg2 Rf8 |
| ECO C47 in 2003 play it! sommer sonja defeats white's molnar monika in 60 moves | 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 Nxe4 5. Bxf7+ Kxf7 6. Nxe4 d5 7. Neg5+ Kg8 8. d4 h6 9. Nh3 Bg4 10. dxe5 Nxe5 11. Nf4 c6 12. h3 Nxf3+ 13. gxf3 Bf5 14. Rg1 Kh7 15. Qd4 g5 16. Nh5 Qe8+ 17. Be3 Qxh5 18. O-O-O Bg7 19. Qb4 b6 20. f4 c5 21. Qb3 d4 22. Bd2 gxf4 23. Bxf4 Bf6 24. Rg2 Rhg8 25. Rdg1 Rxg2 26. Rxg2 Re8 27. Rg1 Bg6 28. Qa4 Qf5 29. Rxg6 Qxg6 30. Qxa7+ Re7 |
| ECO C77 in 1999 play it! sommer sonja defeats white's aydin helin in 104 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 d6 6. c3 Be7 7. Nbd2 Bd7 8. Nf1 O-O 9. h3 Re8 10. g4 g6 11. Ng3 Be6 12. Bd2 Nd7 13. g5 d5 14. h4 dxe4 15. dxe4 Bg4 16. Be3 Bc5 17. Bxc6 bxc6 18. Bxc5 Nxc5 19. Qxd8 Raxd8 20. Nh2 Nd3+ 21. Kf1 Bh3+ 22. Ke2 Nf4+ 23. Ke1 Rd3 24. Rd1 Red8 25. Rxd3 Rxd3 26. Nhf1 Bg2 27. Rh2 Bf3 28. Ne3 Ne6 29. Ngf1 Bxe4 30. Nd2 Bf5 31. Ndc4 e4 32. Ne5 Rd6 33. N3c4 Rd5 34. Nxc6 Kf8 35. N6e5 Nc5 36. Ke2 Na4 37. f4 Nc5 38. Ne3 Rd6 39. Nxf5 gxf5 40. Rh3 Ne6 41. Ke3 Rd1 42. h5 Re1+ 43. Kd2 Rf1 44. Nd7+ Ke7 45. Nf6 Nxf4 46. Rg3 Rh1 47. h6 Nh5 48. Nxh5 Rxh5 49. Ke3 Ke6 50. Rg2 Rh3+ 51. Ke2 f4 52. Kf2 Rf3+ |
| ECO C99 in 2006 play it! sommer sonja defeats white's ishizuka mirai in 87 moves | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4 13. cxd4 Nc6 14. d5 Nb4 15. Bb1 a5 16. a3 Na6 17. a4 b4 18. Nf1 Nc5 19. b3 Ba6 20. Ng3 g6 21. h4 h5 22. Nh2 Bc8 23. Bg5 Nh7 24. Bh6 Re8 25. Nf3 Bg4 26. Nf1 Bxh4 27. N1h2 Bxf3 28. Nxf3 Bf6 29. Nh2 Bg5 30. Bxg5 Nxg5 31. f3 Kg7 32. Ra2 Qe7 33. Bd3 Qf6 34. Rf2 Qf4 35. Bb5 Rh8 36. Rc2 Rad8 37. Rxc5 dxc5 38. Qc2 h4 39. Qxc5 h3 40. Re2 hxg2 41. Rxg2 Rxh2 42. Rxh2 Nxf3+ 43. Kg2 Nxh2 44. Bd3 |
| ECO D24 in 2006 play it! sommer sonja defeats white's zechner andrea in 62 moves | 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 e6 5. e3 a6 6. a4 c5 7. Bxc4 cxd4 8. exd4 Nc6 9. O-O Be7 10. Re1 O-O 11. Bg5 Nd5 12. Ne4 Bxg5 13. Nexg5 h6 14. Ne4 Ncb4 15. Ne5 b6 16. Ra3 g6 17. Rg3 Kg7 18. Qg4 Nf6 19. Nxf6 Qxf6 20. h4 h5 21. Qe4 Ra7 22. Qe3 Nc2 23. Qd2 Nxe1 24. Qxe1 Rc7 25. Bd3 Bb7 26. Rg5 Qf4 27. Nxg6 fxg6 28. Rxg6+ Kh8 29. Qxe6 Qxf2+ 30. Kh2 Qxh4+ 31. Kg1 Rc1+ |
| ECO D09 in 1999 play it! sommer sonja defeats white's sirletti sonia in 70 moves | 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be6 6. Qb3 Qd7 7. Qxb7 Rb8 8. Qa6 Nb4 9. Qxa7 Rd8 10. Na3 d3 11. exd3 Nxd3+ 12. Bxd3 Qxd3 13. Qa4+ Bd7 14. Qb3 Qe4+ 15. Qe3 Bb4+ 16. Ke2 Qc6 17. b3 Bg4 18. h3 Bc5 19. Qf4 Rd4 20. Qxg4 Rxg4 21. hxg4 Qe4+ 22. Be3 Bxa3 23. Rhd1 Bc5 24. Rd3 Nh6 25. Rad1 O-O 26. Nh2 Bxe3 27. Rxe3 Qg2 28. Nf1 Nxg4 29. Rf3 Nxe5 30. Rf4 Ng6 31. Rf3 Re8+ 32. Re3 Kf8 33. Rd5 c6 34. Rd4 Ne5 35. Rf4 h6 |
| ECO D02 in 1996 play it! sommer sonja defeats white's lukan dunja in 82 moves | 1. d4 d5 2. Nf3 Bf5 3. e3 e6 4. Bd3 Bxd3 5. Qxd3 c6 6. O-O Nf6 7. Nbd2 Be7 8. b3 O-O 9. Bb2 Nbd7 10. Rfd1 Rc8 11. c4 Re8 12. e4 Nb6 13. a4 dxe4 14. Nxe4 Nxe4 15. Qxe4 Qc7 16. Rd3 Nd7 17. Rad1 Rcd8 18. Ne5 Nxe5 19. dxe5 Rxd3 20. Rxd3 Rd8 21. h3 Bc5 22. Bc1 h6 23. Rxd8+ Qxd8 24. Be3 Qd1+ 25. Kh2 Qe2 26. Qf3 Qxf3 27. gxf3 Bxe3 28. fxe3 c5 29. Kg3 Kf8 30. Kf4 Ke7 31. a5 Kd7 32. Ke4 Kc6 33. f4 b6 34. axb6 Kxb6 35. Kd3 Ka5 36. Kc3 h5 37. h4 g6 38. e4 a6 39. b4+ cxb4+ 40. Kb3 Kb6 41. Kxb4 a5+ |
| ECO D00 in 1999 play it! sommer sonja defeats white's wilman carey in 88 moves | 1. d4 d5 2. Bf4 Bf5 3. e3 c6 4. Bd3 Bxd3 5. cxd3 Qb6 6. Qc2 e6 7. Nf3 Nd7 8. O-O Ngf6 9. h3 Be7 10. Nbd2 O-O 11. e4 dxe4 12. dxe4 c5 13. dxc5 Qxc5 14. Qxc5 Nxc5 15. Bg5 Rfd8 16. e5 Nd5 17. Bxe7 Nxe7 18. Rac1 b6 19. Nc4 Nd3 20. Rb1 Ng6 21. a4 Rac8 22. b3 Rd5 23. Ne3 Rdc5 24. Rfd1 Ndxe5 25. Nxe5 Nxe5 26. f4 Ng6 27. f5 exf5 28. Nxf5 R5c7 29. Nd6 Rd8 30. Nb5 Rcd7 31. Rxd7 Rxd7 32. Rc1 h6 33. Rc8+ Kh7 34. Rc7 Rxc7 35. Nxc7 Ne5 36. Nb5 Nc6 37. Kf2 Kg6 38. Ke3 Kf5 39. Nd6+ Ke6 40. Nb5 Kd5 41. Kd3 f5 42. Nc7+ Ke5 43. g3 g5 44. Ke3 Nd4 |
| ECO D08 in 2001 play it! sommer sonja defeats white's vuji albana in 86 moves | 1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. a3 Bg4 6. Nbd2 Qd7 7. h3 Bxf3 8. Nxf3 Nge7 9. Qc2 Ng6 10. e3 O-O-O 11. exd4 Nxd4 12. Nxd4 Qxd4 13. Be3 Qxe5 14. Be2 f5 15. O-O Bd6 16. g3 Rhe8 17. Rfe1 Bc5 18. Bf3 Bxe3 19. Rxe3 Qf6 20. Rae1 Rxe3 21. Rxe3 f4 22. Bg4+ Kb8 23. Rd3 Rxd3 24. Qxd3 a6 25. Qd2 fxg3 26. fxg3 Ne5 27. Be2 Nc6 28. Kg2 Nd4 29. b4 Nxe2 30. Qxe2 Qc3 31. Qf3 Qb2+ 32. Kf1 Qc1+ 33. Kg2 Qxc4 34. h4 Qc6 35. Qxc6 bxc6 36. Kf3 Kb7 37. Ke4 Kb6 38. Ke5 c5 39. bxc5+ Kxc5 40. Ke6 Kd4 41. g4 c5 42. h5 c4 43. Kf7 c3 |
| ECO D02 in 2000 play it! sommer sonja defeats white's macek vlasta in 132 moves | 1. d4 d5 2. Nf3 Bf5 3. g3 c6 4. Bg2 h6 5. O-O Nf6 6. b3 e6 7. Bb2 Nbd7 8. Nbd2 Be7 9. Re1 Ne4 10. Nxe4 Bxe4 11. Bh3 Nf6 12. Nd2 Bg6 13. Bg2 O-O 14. e4 Nxe4 15. Nxe4 dxe4 16. Bxe4 Bxe4 17. Rxe4 Bf6 18. Qe2 Qb6 19. c3 Rad8 20. Qf3 Rd7 21. b4 Qd8 22. a4 a5 23. b5 c5 24. dxc5 Rd3 25. Re3 Rd5 26. Rae1 Qc7 27. Qe2 Rfd8 28. Ba3 Rd2 29. Qf3 Ra2 30. b6 Qc8 31. Bc1 Rxa4 32. Re4 Rxe4 33. Rxe4 Qc6 34. c4 Rd4 35. Rf4 Qxf3 36. Rxf3 Rd1+ 37. Kg2 Rxc1 38. c6 bxc6 39. Rb3 Be5 40. f4 Bb8 41. Rd3 Rxc4 42. Rd8+ Kh7 43. Rxb8 Rb4 44. Kf3 a4 45. Rb7 Kg6 46. h4 h5 47. Ke2 a3 48. Ra7 Rxb6 49. Rxa3 Rb5 50. Rc3 c5 51. Rc4 Kf5 52. Rc3 Kg4 53. Kd3 Rb4 54. Rxc5 Rb3+ 55. Kd4 Kxg3 56. Rg5+ Kxf4 57. Rxg7 e5+ 58. Kc4 Rb7 59. Kd3 e4+ 60. Ke2 Rb2+ 61. Kf1 f6 62. Rg6 Rb6 63. Ke2 Kf5 64. Rg1 Ke5 65. Ke3 Rb3+ 66. Kf2 Rh3 |