| ECO A27 in 1994 play it! regan natasha defeats white's gant chris in 74 moves | 1. c4 e5 2. Nc3 Nc6 3. Nf3 f5 4. d4 e4 5. Ng5 Be7 6. h4 Nf6 7. e3 d6 8. b3 Ng4 9. Bb2 Bxg5 10. hxg5 Qxg5 11. Qd2 Bd7 12. Nd5 O-O-O 13. Rc1 Rde8 14. c5 Re6 15. Nxc7 Kxc7 16. d5 Rh6 17. dxc6 Bxc6 18. Rxh6 Qxh6 19. Qxd6+ Qxd6 20. cxd6+ Kxd6 21. Bxg7 Rd8 22. Bc4 Ke7 23. Bd4 b6 24. Be2 Rd6 25. f3 Nf6 26. Kf2 exf3 27. gxf3 f4 28. Rh1 fxe3+ 29. Bxe3 Ng4+ 30. Ke1 Nxe3 31. Rxh7+ Ke6 32. Rxa7 Nc2+ 33. Kf2 Rd2 34. Ra6 Kd5 35. Kf1 Nd4 36. Bc4+ Kc5 37. f4 Bg2+ |
| ECO A25 in 1996 play it! regan natasha defeats white's osiochru mairead in 36 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. d3 Nf6 5. Bg2 Bc5 6. Nf3 O-O 7. O-O d6 8. a3 Qe8 9. Nb5 Bb6 10. Be3 Bxe3 11. Nxc7 Qf7 12. Nxa8 Bh6 13. Qb3 e4 14. dxe4 fxe4 15. Ne1 Be6 16. Nb6 axb6 17. Qxb6 Bxc4 18. Nc2 Nd5 |
| ECO B34 in 1991 play it! regan natasha defeats white's hall s in 66 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. c3 Nf6 7. Bd3 O-O 8. O-O Ne5 9. h3 Nxd3 10. Qxd3 d6 11. f4 Bd7 12. f5 a6 13. Na3 b5 14. fxg6 hxg6 15. Nac2 Qb8 16. Bg5 Qb6 17. Kh1 Qb7 18. Rae1 Rae8 19. Qe3 Nh5 20. g4 Nf6 21. Kh2 Nh7 22. Bh6 Be5+ 23. Kg1 Bg7 24. Bxg7 Kxg7 25. Nf5+ gxf5 26. gxf5 d5 27. Re2 Kh8 28. Qh6 Rg8+ 29. Kh1 dxe4 30. Ne3 Qc6 31. f6 Rg6 32. Qh5 exf6 33. Rf4 Re5 |
| ECO B34 in 1992 play it! regan natasha defeats white's dacruz in 58 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be2 Bg7 6. Be3 Nf6 7. Nc3 O-O 8. O-O d5 9. Nxc6 bxc6 10. e5 Nd7 11. f4 e6 12. b4 a5 13. b5 c5 14. Na4 d4 15. Bf2 Bb7 16. c3 f6 17. cxd4 cxd4 18. exf6 Qxf6 19. Rc1 Qxf4 20. Bg3 Qe3+ 21. Bf2 Qg5 22. Bg4 Ne5 23. Bxe6+ Kh8 24. Bh3 Nf3+ 25. Kh1 Nxh2 26. Kxh2 Be5+ 27. Kh1 Qf4 28. Bg1 Qg3 29. Qg4 Bxg2+ |
| ECO B90 in 1990 play it! regan natasha defeats white's laurence c in 66 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. Be2 Be7 9. O-O Nbd7 10. f4 Qc7 11. f5 Bc4 12. Nd2 Bxe2 13. Qxe2 b5 14. a3 O-O 15. Rfd1 Rac8 16. Rac1 Rfd8 17. Nf1 Nb6 18. Bxb6 Qxb6+ 19. Kh1 Rc4 20. Nd5 Nxd5 21. Rxd5 Rdc8 22. c3 a5 23. Rcd1 b4 24. axb4 axb4 25. Nd2 R4c5 26. Rxc5 Rxc5 27. Nb3 Rc6 28. c4 Qa6 29. Rc1 h6 30. g3 Bg5 31. Rc2 Qa2 32. Nc1 Qb1 33. Qd1 b3 |
| ECO B02 in 1995 play it! regan natasha defeats white's riegler alessand in 64 moves | 1. e4 Nf6 2. Nc3 e5 3. Nf3 Bb4 4. d3 Nc6 5. Be2 d5 6. exd5 Nxd5 7. Bd2 Nf4 8. O-O O-O 9. Re1 Nxe2+ 10. Qxe2 f6 11. Ne4 Be7 12. Ng3 Bg4 13. Qe4 Be6 14. Nf5 Bc5 15. c3 Qd7 16. N3h4 Ne7 17. Nxe7+ Bxe7 18. d4 Rae8 19. g3 f5 20. Qxe5 Bxh4 21. gxh4 Bd5 22. Qg3 Re4 23. Bf4 Rf6 24. h5 h6 25. f3 Rxe1+ 26. Rxe1 Qf7 27. Qh3 Bxa2 28. Kf2 Bc4 29. Be5 Rb6 30. b4 Ra6 31. Rg1 Ra2+ 32. Ke3 f4+ |
| ECO B02 in 2007 play it! regan natasha defeats white's riegler alessand in 64 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 Ne4 4. Nxe4 dxe4 5. d4 exd3 6. Qxd3 Bd7 7. f4 e6 8. Qh3 Nc6 9. Nf3 Bc5 10. c3 Qe7 11. Bd2 O-O-O 12. O-O-O f6 13. Bd3 Bb6 14. Rhe1 Qc5 15. Bc2 Qb5 16. Bb3 Rde8 17. Be3 Na5 18. Bxb6 Nxb3+ 19. axb3 Qxb6 20. Nd4 c5 21. Nc2 Qxb3 22. Rd6 Re7 23. Qd3 Ba4 24. Ne3 Qa2 25. Nc2 Qb3 26. Ne3 fxe5 27. Rd1 Ree8 28. fxe5 Qa2 29. Nc2 Rhf8 30. Rd2 Bxc2 31. Kxc2 Qa4+ 32. Kb1 Qf4 |
| ECO B02 in 1998 play it! regan natasha defeats white's wilson alexandra in 68 moves | 1. e4 Nf6 2. Nc3 d5 3. exd5 Nxd5 4. Nge2 c6 5. d4 Bg4 6. h3 Bh5 7. g4 Bg6 8. Nxd5 Qxd5 9. Ng3 e5 10. dxe5 Qxe5+ 11. Be2 Bd6 12. f4 Qe7 13. O-O O-O 14. Rf3 Rd8 15. Bd3 Qh4 16. Kg2 c5 17. f5 Bxg3 18. Rxg3 c4 19. fxg6 hxg6 20. Qf1 cxd3 21. Rxd3 Nc6 22. Bf4 Nb4 23. Rc3 Nd5 24. Bg3 Qg5 25. h4 Qd2+ 26. Qf2 Nxc3 27. bxc3 Qxc3 28. Qf1 Rd2+ 29. Kh3 Re8 30. Rd1 Rxd1 31. Qxd1 Re3 32. Qg1 Re2 33. Qxa7 Qa1 34. Bh2 Qf1+ |
| ECO B02 in 1999 play it! regan natasha defeats white's burchardt brigit in 66 moves | 1. e4 Nf6 2. Qe2 Nc6 3. Nf3 e5 4. Nc3 Bc5 5. d3 Ng4 6. Nd1 O-O 7. h3 Nf6 8. Bg5 d5 9. Ne3 dxe4 10. dxe4 Nd4 11. Qc4 Be7 12. c3 Nxe4 13. cxd4 Nxg5 14. Nxe5 Be6 15. d5 c6 16. Bd3 Qa5+ 17. Kf1 cxd5 18. Qf4 Qb4 19. Qxb4 Bxb4 20. Ke2 Rac8 21. f3 f6 22. N5g4 Rfe8 23. f4 Ne4 24. Bxe4 dxe4 25. f5 Bd7 26. Rhc1 h5 27. Nh2 Bc5 28. Nhf1 Bb5+ 29. Kf2 Kf7 30. a4 Bd3 31. Nd2 Bd4 32. Rxc8 Rxc8 33. Ra3 Rc2 |
| ECO B04 in 1999 play it! regan natasha defeats white's keely leo in 72 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 g6 6. Bc4 c6 7. O-O Bg7 8. c3 O-O 9. Nd2 Nd7 10. Ndf3 Nxe5 11. Nxe5 Be6 12. Qf3 c5 13. dxc5 Bxe5 14. Rd1 Nxc3 15. Rxd8 Raxd8 16. bxc3 Bxc4 17. Bh6 Rd3 18. Qg4 Rfd8 19. g3 Be6 20. Qa4 Bxc3 21. Rb1 Bd7 22. Qc2 Bc6 23. h4 Bf3 24. Kh2 Bd2 25. Bf4 Bxf4 26. gxf4 Rd2 27. Qc3 R8d3 28. Qe5 Rxf2+ 29. Kg1 Re2 30. Qb8+ Kg7 31. Kf1 Rdd2 32. a4 Rf2+ 33. Kg1 Rg2+ 34. Kf1 Rdf2+ 35. Ke1 Re2+ 36. Kf1 Rh2 |
| ECO B03 in 1991 play it! regan natasha defeats white's domuta adriana in 100 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Bd3 g6 7. Ne2 Bg7 8. Nbc3 Nc6 9. d5 Ne5 10. O-O Bg4 11. f3 Nxd3 12. Qxd3 Bf5 13. Qd1 O-O 14. b3 Rc8 15. Be3 h5 16. Bd4 Bh6 17. Ng3 Bd7 18. f4 f5 19. Rf3 Qe8 20. Qe2 Qf7 21. Qf2 Rce8 22. Bxb6 axb6 23. Qxb6 e5 24. Qxd6 Bxf4 25. Nce2 Bg5 26. Kh1 e4 27. Rff1 h4 28. Nxe4 Rxe4 29. Nf4 Bf6 30. Rae1 Kh7 31. Rxe4 fxe4 32. Ne6 Bxe6 33. dxe6 Qe7 34. Qd7 Qxd7 35. exd7 Kg7 36. g3 Rd8 37. Rd1 h3 38. Kg1 e3 39. Rd3 Bg5 40. Rd5 Bh6 41. Kf1 Kf7 42. Rd6 Bf8 43. Rd3 Bc5 44. Rd5 b6 45. a4 Ke6 46. a5 Rxd7 47. b4 Bxb4 48. axb6 Rxd5 49. cxd5+ Kxd5 50. b7 Bd6 |
| ECO B03 in 1999 play it! regan natasha defeats white's dcosta lorin in 65 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4 c6 5. exd6 Qxd6 6. Nf3 Bf5 7. O-O Nd7 8. Nbd2 g5 9. Bb3 Qg6 10. Nc4 h6 11. Nfe5 Qh7 12. Nxd7 Bxd7 13. Qe1 Be6 14. Ne5 Bg7 15. c4 Nb6 16. d5 cxd5 17. cxd5 Bxd5 18. Bxd5 Nxd5 19. Qa5 Nb6 20. Qb5+ Kf8 21. Re1 Rd8 22. Be3 Rd5 23. Nd7+ Kg8 24. Nc5 Qf5 25. Qb4 Kh7 26. a4 Rb8 27. a5 Nc8 28. Rac1 b6 29. Na6 Rb7 30. axb6 Nxb6 31. Rc5 Rbd7 32. Qa3 Rd1 33. Qa5 |
| ECO B04 in 2007 play it! regan natasha defeats white's susterman anja in 126 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 g6 6. Bc4 c6 7. Nc3 Bg7 8. Qf3 Be6 9. O-O Nd7 10. Re1 Nxe5 11. dxe5 O-O 12. Bg5 Nc7 13. Qe2 Bxc4 14. Qxc4 Ne6 15. Bh4 Qd4 16. Qxd4 Nxd4 17. Rad1 Nf5 18. Bg5 h6 19. Bf4 Rad8 20. Kf1 Rd4 21. Rxd4 Nxd4 22. Rd1 Rd8 23. Ne4 Kf8 24. c3 Ne6 25. Rxd8+ Nxd8 26. Ke2 Ne6 27. Bg3 h5 28. h3 Ke8 29. f4 Kd7 30. Kf3 c5 31. Bf2 Kc6 32. g4 hxg4+ 33. hxg4 b6 34. Be3 Kd5 35. f5 Nd8 36. f6 Bf8 37. Ng5 exf6 38. Nh7 Ne6 39. Nxf8 Nxf8 40. exf6 Ne6 41. g5 Ke5 42. b4 cxb4 43. cxb4 Kf5 44. a4 Nxg5+ 45. Ke2 Ne4 46. a5 bxa5 47. bxa5 a6 48. Kd3 Nxf6 49. Kd4 Ke6 50. Kc5 Nd7+ 51. Kc6 Ne5+ 52. Kb7 Nc4 53. Bb6 Kd5 54. Kxa6 f5 55. Kb7 Nxa5+ 56. Bxa5 f4 57. Kc7 g5 58. Kd7 g4 59. Be1 g3 60. Ke7 g2 61. Bf2 Ke4 62. Kf6 Kf3 63. Bc5 Ke2 |
| ECO B02 in 2002 play it! regan natasha defeats white's tidman sophie e in 58 moves | 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 c6 6. Bc4 d6 7. Qb3 Nd7 8. Nxd5 Nxc5 9. Nc7+ Qxc7 10. Bxf7+ Kd8 11. Qe3 d5 12. Nf3 Bf5 13. O-O e6 14. Qg5+ Qe7 15. b4 Nd3 16. h4 h6 17. Qe3 Qxf7 18. a3 Be4 19. Nd4 Nxe5 20. f3 Nc4 21. Qe2 Qf6 22. Nb3 Bc2 23. Na5 Nxa5 24. Ra2 Bf5 25. Bb2 Qxh4 26. g4 Qg5 27. Kf2 Nc4 28. gxf5 Nxb2 29. Rxb2 Qxf5 |
| ECO B02 in 1999 play it! regan natasha defeats white's carvalho alda in 88 moves | 1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3 d6 5. exd6 exd6 6. Bb2 Nc6 7. Nf3 Bf5 8. Be2 Be7 9. O-O O-O 10. d4 Bf6 11. Qd2 d5 12. Na3 Re8 13. Rfe1 Be4 14. Rad1 Qd7 15. c5 Nc8 16. Nc2 b6 17. Ne3 N8e7 18. b4 Ng6 19. b5 Nce7 20. c6 Qe6 21. Nf1 Qd6 22. Ng3 Nf4 23. Nxe4 dxe4 24. Ne5 Bg5 25. Qc2 Nxe2+ 26. Qxe2 f5 27. Qh5 h6 28. Qf7+ Kh7 29. d5 Rf8 30. Qe6 Qxe6 31. dxe6 Rf6 32. Rd7 Rxe6 33. Rxc7 Bf4 34. Ba3 Ng8 35. Rf7 Bxe5 36. Rxf5 Kg6 37. g4 Nf6 38. f3 e3 39. h4 a6 40. h5+ Kh7 41. f4 Bc3 42. Re2 Nxg4 43. c7 axb5 44. Rxb5 Rc8 |
| ECO B03 in 1998 play it! regan natasha defeats white's micic jordanka in 98 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nc3 Be7 7. Be3 O-O 8. Be2 Nc6 9. Nf3 Bg4 10. b3 Re8 11. O-O Bf6 12. Qd2 d5 13. c5 Nc8 14. h3 Be6 15. g4 h6 16. Ne1 b6 17. Na4 Bd7 18. Bf3 N8e7 19. Rc1 Na5 20. Nb2 Bb5 21. Ned3 Ng6 22. Rfe1 Nh4 23. Bh1 c6 24. f4 Nb7 25. a4 Ba6 26. Nb4 bxc5 27. Nxa6 Rxe3 28. Rxe3 Bxd4 29. Kh2 Qb6 30. Nxc5 Bxc5 31. Rg3 Na5 32. Qc3 Bd4 33. Qd2 Re8 34. b4 Bxb2 35. Qxb2 Nc4 36. a5 Qb8 37. Qf2 Qxb4 38. Rgc3 Ng6 39. Kg3 Qxa5 40. h4 Qd8 41. Kh3 Qb6 42. R1c2 Qc7 43. Kg3 Qe7 44. g5 Ne3 45. Rd2 Nf5+ 46. Kh2 Qd6 47. h5 Nxf4 48. Rxc6 Qe5 49. Qf3 Ne2+ |
| ECO B03 in 1996 play it! regan natasha defeats white's howard emily in 62 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Be2 e6 9. Nf3 Nb4 10. Na3 c5 11. O-O Be7 12. Qb3 Nc6 13. dxc5 Na5 14. Qb5+ Nd7 15. b4 Nc6 16. Qxb7 Be4 17. Nb5 Rb8 18. Qc7 Nxb4 19. Rad1 Qxc7 20. Nxc7+ Kd8 21. Nb5 a6 22. Nd6 Bg6 23. Ng5 Bxd6 24. Rxd6 Ke7 25. Nf3 Rhc8 26. Rfd1 Rb7 27. a3 Nc6 28. Bg5+ Ke8 29. Be3 Rcc7 30. Kf1 Rb3 31. R6d3 Bxd3 |
| ECO B04 in 2007 play it! regan natasha defeats white's lee graham in 113 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5 5. Nxe5 g6 6. Bc4 c6 7. O-O Bg7 8. Qe2 O-O 9. Nd2 a5 10. a4 Be6 11. Ne4 Nc7 12. c3 f6 13. Bxe6+ Nxe6 14. Nd3 Nd7 15. Re1 Rf7 16. h4 Qc7 17. h5 g5 18. Ng3 Nef8 19. f4 h6 20. Qg4 Re8 21. Bd2 e6 22. f5 e5 23. Re4 Nh7 24. Rae1 Rd8 25. Nf1 Nb6 26. Nc5 Nf8 27. b3 Nc8 28. R4e2 b6 29. Ne6 Nxe6 30. fxe6 Rff8 31. Ng3 Ne7 32. Rf1 c5 33. dxe5 fxe5 34. Rf7 Rxf7 35. exf7+ Kf8 36. Rf2 Nd5 37. Bxg5 hxg5 38. Qxg5 Qe7 39. Qg6 Nf6 40. h6 Bh8 41. Ne4 Qxf7 42. Qg5 Ke7 43. Rf5 Rd5 44. h7 Rd1+ 45. Kf2 Rd8 46. c4 Qg7 47. Rxe5+ Kd7 48. Qf5+ Kc7 49. Ng5 Ng4+ 50. Qxg4 Qxe5 51. Ne6+ Kd7 52. Nxd8+ Kxd8 53. Qg8+ Ke7 54. Kf3 Qf5+ 55. Kg3 Be5+ 56. Kh4 Qf4+ 57. g4 |
| ECO B03 in 1999 play it! regan natasha defeats white's kieran rosalind in 110 moves | 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 exd6 6. Nf3 Be7 7. Be2 O-O 8. O-O Bf5 9. Nc3 Bf6 10. Be3 d5 11. c5 Nc4 12. Bc1 b6 13. b3 Na5 14. Ba3 Re8 15. Rc1 c6 16. Na4 Nd7 17. Bb4 bxc5 18. Nxc5 Rb8 19. Bd2 Qb6 20. Na4 Qc7 21. Bxa5 Qxa5 22. Rxc6 Rbc8 23. Rxc8 Rxc8 24. Bd3 Be4 25. Qe2 Bxd3 26. Qxd3 Nb6 27. Nxb6 axb6 28. Re1 g6 29. Qe2 Qc3 30. Rd1 Rc6 31. Qe8+ Kg7 32. Ne5 Rc7 33. Nd7 Rc8 34. Qe3 Bxd4 35. Qxc3 Rxc3 36. g3 Rc7 37. Rxd4 Rxd7 38. Kg2 Kf6 39. f4 Ke6 40. Kf3 Rc7 41. h3 Rc3+ 42. Kg4 f5+ 43. Kh4 Kd6 44. g4 Kc5 45. Rd2 d4 46. gxf5 gxf5 47. Kg5 d3 48. Kxf5 Kd4 49. Kg4 Rc2 50. Rd1 d2 51. f5 Rxa2 52. f6 Ke3 53. f7 Ra8 54. Rf1 Rf8 55. Kg3 Ke2 |
| ECO B02 in 1998 play it! regan natasha defeats white's schaefer anke in 60 moves | 1. e4 Nf6 2. Nc3 d5 3. e5 Ne4 4. Nxe4 dxe4 5. d3 Bf5 6. Be3 Nc6 7. d4 e6 8. Bb5 Qd7 9. c3 a6 10. Qa4 Be7 11. Ne2 O-O 12. Bxc6 bxc6 13. O-O f6 14. exf6 gxf6 15. b4 Kh8 16. Bf4 Rg8 17. Rfe1 Rg4 18. h3 Rg7 19. Ng3 Bd6 20. Bxd6 Qxd6 21. Nxf5 exf5 22. Kh1 Rag8 23. Rg1 f4 24. Qxa6 Qe6 25. Qf1 f3 26. g3 f5 27. a4 e3 28. g4 e2 29. Qb1 Rxg4 30. Rxg4 Rxg4 |