| ECO A05 in 1990 play it! regan natasha defeats black's gorges jp in 77 moves | 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O c5 6. Nc3 Nc6 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qd3 Rb8 11. h3 b6 12. Nb5 Qd7 13. e4 a6 14. Nd4 Bb7 15. Rd1 Rbc8 16. Be3 Rc7 17. Rac1 Rfc8 18. b3 Qe8 19. a4 Nd7 20. Ne2 Nc5 21. Qb1 b5 22. cxb5 axb5 23. a5 b4 24. Nd4 e5 25. Nc2 Bxe4 26. Bxe4 Nxe4 27. Nxb4 Nc3 28. Rxc3 Rxc3 29. Nd5 Rc2 30. a6 Kf8 31. a7 R2c6 32. Nb6 Ra8 33. Nxa8 Qxa8 34. b4 Ke7 35. b5 Rc7 36. b6 Rb7 37. Qb4 Rd7 38. Rxd6 Rxd6 39. b7 |
| ECO A05 in 1989 play it! regan natasha defeats black's popovych orest in 77 moves | 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 Bg4 8. h3 Bxf3 9. Bxf3 Nd7 10. e3 e5 11. Ne2 Qf6 12. Bg4 Nb6 13. c5 dxc5 14. dxc5 Rfd8 15. Qb3 Nd5 16. e4 Ndb4 17. h4 h6 18. Nc3 a5 19. Nd5 Nxd5 20. exd5 Nb4 21. Rd1 e4 22. Be2 Qf5 23. Bc4 c6 24. d6 Qxc5 25. Bxf7+ Kh7 26. Be3 Qf5 27. Bd4 Nd3 28. Be6 Qb5 29. Qxb5 cxb5 30. Bxg7 Kxg7 31. d7 Kf6 32. Bh3 Ke5 33. f3 Ra6 34. fxe4 Kxe4 35. Rd2 Ke3 36. Rad1 Ne5 37. Rd5 Nf3+ 38. Kg2 Rf6 39. Bg4 |
| ECO A05 in 1990 play it! regan natasha defeats black's jardin p in 21 moves | 1. Nf3 Nf6 2. c4 c5 3. g3 Nc6 4. Bg2 e5 5. Nc3 d5 6. cxd5 Nxd5 7. Nxe5 Nxe5 8. Nxd5 Be6 9. Qa4+ Bd7 10. Qe4 f5 11. Qxe5+ |
| ECO A03 in 2002 play it! regan natasha defeats black's yurenok maria s in 137 moves | 1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 Nf6 5. O-O O-O 6. d3 c6 7. Kh1 Bg4 8. h3 Bxf3 9. Bxf3 Nbd7 10. Nc3 d4 11. Ne4 Nd5 12. Rb1 Qc7 13. c3 e5 14. fxe5 Nxe5 15. Bg2 Nd7 16. Qe1 f5 17. Ng5 Rae8 18. cxd4 Bxd4 19. e4 Qb6 20. g4 Ne3 21. Qh4 Nf6 22. Bxe3 Bxe3 23. gxf5 Bxg5 24. Qxg5 Kg7 25. Rf3 Nd7 26. fxg6 hxg6 27. Rg3 c5 28. Bf3 Qf6 29. Qxf6+ Rxf6 30. Bg4 Ne5 31. b4 Nxg4 32. hxg4 Rb6 33. Rc1 cxb4 34. Rc7+ Kf6 35. Rf3+ Kg5 36. Rc5+ Kxg4 37. Kg2 g5 38. Rg3+ Kh5 39. Rcxg5+ Kh6 40. e5 Re7 41. d4 Rd7 42. R5g4 Kh7 43. Rh3+ Rh6 44. e6 Rc7 45. Rxh6+ Kxh6 46. d5 Rg7 47. d6 Rxg4+ 48. Kf3 Rd4 49. e7 Rxd6 50. e8=Q Rf6+ 51. Kg4 Kg7 52. Kg5 Rf7 53. Qe5+ Kh7 54. Qe4+ Kg7 55. Qd4+ Kh7 56. Qxa7 Kg7 57. Qd4+ Kh7 58. Qxb4 Kg7 59. Qd6 Kg8 60. Qe6 Kg7 61. a3 Rf1 62. Qh6+ Kg8 63. Qb6 Rf7 64. Kg6 Rg7+ 65. Kf6 Kh7 66. Qb3 Rg6+ 67. Kf7 Rg7+ 68. Kf8 Rc7 69. Qh3+ |
| ECO A03 in 1991 play it! regan natasha defeats black's claus caroline in 41 moves | 1. f4 d5 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. d3 O-O 6. O-O c5 7. Qe1 Nc6 8. h3 Qc7 9. g4 d4 10. Na3 Nd5 11. Ng5 Ne3 12. Bxe3 dxe3 13. c3 e6 14. Nc4 Rb8 15. Nxe3 b5 16. f5 exf5 17. gxf5 Qe5 18. Ng4 Qe8 19. Qh4 h5 20. f6 Bxg4 21. fxg7 |
| ECO A02 in 1991 play it! regan natasha defeats black's kalisch t in 61 moves | 1. f4 e5 2. e4 exf4 3. Bc4 d5 4. Bxd5 Nf6 5. Nc3 Bb4 6. Nf3 O-O 7. O-O c6 8. Bc4 Bg4 9. d3 Nh5 10. Ne2 Bd6 11. e5 Bc7 12. Nxf4 Bxe5 13. Nxh5 Bxh5 14. Qe1 Bc7 15. Bg5 Qd7 16. Qh4 Bg6 17. Rae1 Na6 18. Ne5 Bxe5 19. Rxe5 Rab8 20. Re7 Qc8 21. Qf4 b5 22. Bxf7+ Kh8 23. Qe5 Rxf7 24. Rfxf7 Bxf7 25. Rxf7 Qg8 26. Rxg7 Qd5 27. Qxd5 cxd5 28. Bf6 Rf8 29. Bc3 b4 30. Bd4 Rf4 31. Rg4+ |
| ECO A03 in 2001 play it! regan natasha defeats black's howard emily in 47 moves | 1. f4 d5 2. Nf3 Nf6 3. g3 Bf5 4. Bg2 e6 5. d3 h6 6. O-O Bc5+ 7. e3 O-O 8. Ne5 Nbd7 9. g4 Bh7 10. g5 hxg5 11. fxg5 Ne8 12. Nf3 Be7 13. Nc3 Nd6 14. Qe1 c5 15. e4 d4 16. Ne2 Rc8 17. Qg3 Bg6 18. Qg4 Qe8 19. Nf4 e5 20. Nxg6 fxg6 21. Qe6+ Nf7 22. Bh3 Rd8 23. Nh4 Nb6 24. Nxg6 |
| ECO A03 in 1993 play it! regan natasha defeats black's houska jovanka in 129 moves | 1. f4 d5 2. Nf3 Nf6 3. g3 Bf5 4. d3 e6 5. Bg2 Nbd7 6. Nc3 c6 7. e3 Bc5 8. Qe2 Bb4 9. a3 Bxc3+ 10. bxc3 Nc5 11. O-O O-O 12. a4 Re8 13. Ne5 Qa5 14. Bd2 Qc7 15. g4 Bg6 16. h4 h6 17. h5 Bh7 18. g5 hxg5 19. fxg5 Qxe5 20. gxf6 Nd7 21. fxg7 Qxg7 22. Rf4 Kf8 23. Raf1 Re7 24. c4 a5 25. Rg4 Qb2 26. e4 f5 27. cxd5 exd5 28. Bc1 Qd4+ 29. Be3 Qe5 30. Qf2 Nf6 31. Rg5 Ke8 32. Bd4 Qe6 33. exf5 Qf7 34. h6 Qf8 35. Rg7 Rxg7 36. hxg7 Qxg7 37. Qe1+ Kf8 38. Qe6 Re8 39. Qxf6+ Qxf6 40. Bxf6 Re2 41. Rf2 Re1+ 42. Kh2 Kf7 43. Bc3 Rb1 44. Rf1 Rxf1 45. Bxf1 Bxf5 46. Kg3 Ke6 47. Bxa5 Kd6 48. Kf4 Bh7 49. Bb6 c5 50. c3 Kc6 51. a5 Kb5 52. Ke5 c4 53. dxc4+ dxc4 54. Kd4 Bg8 55. Bg2 Ka6 56. Bd5 Bxd5 57. Kxd5 Kb5 58. Bd8 Ka6 59. Kxc4 Ka7 60. Kb5 Ka8 61. a6 bxa6+ 62. Kxa6 Kb8 63. Kb6 Kc8 64. Bc7 Kd7 65. Kb7 |
| ECO A03 in 1991 play it! regan natasha defeats black's uchida c in 63 moves | 1. f4 d5 2. Nf3 c5 3. g3 Nc6 4. Bg2 Nf6 5. d3 Bg4 6. h3 Bd7 7. Nc3 e6 8. e4 Qc7 9. O-O O-O-O 10. e5 d4 11. Nb5 Qa5 12. Na3 Nd5 13. Nc4 Qc7 14. a4 Na5 15. Nxa5 Qxa5 16. Bd2 Qc7 17. c3 Kb8 18. Kh2 dxc3 19. bxc3 Bc6 20. Qc2 f6 21. Rfe1 Qf7 22. a5 h6 23. exf6 gxf6 24. a6 Bd6 25. axb7 Rdg8 26. Qa2 Bxb7 27. Qxa7+ Kc8 28. Rg1 h5 29. c4 Nb4 30. Bxb4 Qg7 31. Be1 Qc7 32. Nh4 |
| ECO B20 in 1994 play it! regan natasha defeats black's duncan christoph in 133 moves | 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6 7. O-O a6 8. Qe2 Bd7 9. Rd1 Be7 10. Bf4 e5 11. Be3 Nf6 12. Rd2 h6 13. Rad1 Qc7 14. Bd5 Nb4 15. Bb3 O-O 16. Nh4 Be6 17. Bxe6 fxe6 18. a3 Nc6 19. Qc4 Kf7 20. Nf5 Rfd8 21. Nd5 exd5 22. exd5 b5 23. Qxc6 Qxc6 24. dxc6 Ne8 25. Bb6 Rdc8 26. c7 Ke6 27. Nxe7 Kxe7 28. Rc2 Kd7 29. Rdc1 a5 30. b4 axb4 31. axb4 Ra6 32. Ba5 Nf6 33. Rc3 Ke6 34. Kf1 Ne4 35. Rd3 Kd7 36. Re1 Rxa5 37. bxa5 Nc5 38. Rg3 g5 39. Rh3 Rh8 40. Rb1 Kxc7 41. Rxb5 h5 42. Rf3 Kc6 43. Rb6+ Kd5 44. Ra3 Ra8 45. a6 Ra7 46. Ke2 Ke6 47. Ra5 Kd7 48. Rb8 Ke6 49. Rh8 h4 50. Rh6+ Kd5 51. Rg6 Kc6 52. Rxg5 Kb6 53. Ra3 Nxa6 54. Rg4 Rh7 55. Rh3 Nc5 56. Rhxh4 Rd7 57. Rh8 Ne6 58. Rc8 Nd4+ 59. Kd3 d5 60. Rxd4 exd4 61. Kxd4 Rg7 62. g3 Rf7 63. f4 Rh7 64. Kxd5 Rxh2 65. Rc3 Kb5 66. Rb3+ Ka4 67. Rf3 |
| ECO B20 in 2007 play it! regan natasha defeats black's forbes cathy in 69 moves | 1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 Nc6 5. c4 Nf6 6. Nc3 e6 7. Nf3 a6 8. O-O Qc7 9. h3 Bd6 10. Be3 h5 11. c5 Bf4 12. Bxf4 Qxf4 13. Qd2 Qxd2 14. Nxd2 Ne5 15. Be2 g5 16. f4 gxf4 17. Rxf4 Ke7 18. Raf1 Rh6 19. Nc4 Nxc4 20. Bxc4 b5 21. Bd3 Bb7 22. e5 Nd5 23. Rxf7+ Kd8 24. Be4 Kc7 25. Nxd5+ Bxd5 26. Bxd5 exd5 27. R1f6 Rxf6 28. exf6 Kc6 29. g4 hxg4 30. hxg4 d4 31. g5 d6 32. g6 dxc5 33. g7 d3 34. Kf2 Rd8 35. Rf8 |
| ECO B20 in 1998 play it! regan natasha defeats black's moore gerald in 61 moves | 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O Nge7 8. Bg5 f6 9. Be3 b5 10. Bb3 Na5 11. Qe2 Nxb3 12. axb3 Bb7 13. Rad1 Nc6 14. Rd2 Bb4 15. Rfd1 Qe7 16. e5 fxe5 17. Bg5 Qf7 18. Rxd7 Qxd7 19. Rxd7 Kxd7 20. Nxe5+ Kc7 21. Nxc6 Bxc6 22. Qe5+ Bd6 23. Qxg7+ Kb6 24. Be3+ Bc5 25. Bf4 Rhc8 26. Qxh7 Ra7 27. Qh6 Rg8 28. g3 Re8 29. Be3 Bxe3 30. Qxe3+ Kb7 31. Ne4 |
| ECO B20 in 1999 play it! regan natasha defeats black's kas fromm rita in 61 moves | 1. e4 c5 2. d4 cxd4 3. c3 Nf6 4. e5 Nd5 5. Nf3 Nc6 6. Bc4 Nb6 7. Bb3 g6 8. cxd4 Bg7 9. d5 Nxe5 10. Nxe5 Bxe5 11. Bh6 Bxb2 12. Nd2 Bxa1 13. Qxa1 f6 14. d6 e6 15. Bg7 Kf7 16. Bxh8 Qxh8 17. Qd4 Qd8 18. h4 a5 19. h5 g5 20. a4 Ra6 21. Ne4 Nd5 22. Bxd5 exd5 23. Qxd5+ Kg7 24. h6+ Kg6 25. g4 Rc6 26. Qf5+ Kf7 27. Qxh7+ Ke6 28. Qf5+ Kf7 29. O-O b6 30. Nxg5+ Kf8 31. Qg6 |
| ECO B20 in 1999 play it! regan natasha defeats black's jahn constanze in 73 moves | 1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 Nc6 5. c4 Nf6 6. Nc3 e6 7. Nf3 d6 8. O-O Be7 9. h3 O-O 10. Be3 b6 11. Rc1 Bb7 12. Qd2 Ne5 13. Nxe5 dxe5 14. a3 Nd7 15. b4 f5 16. exf5 exf5 17. f4 e4 18. Bb1 Nf6 19. Qf2 Ba6 20. Rfd1 Qe8 21. Ba2 Kh8 22. Nd5 Nxd5 23. cxd5 Bd3 24. Bd4 Rc8 25. Qb2 Bf6 26. Bxf6 Rxf6 27. Rxc8 Qxc8 28. Rc1 Qd7 29. Qe5 h6 30. Rc7 Qd6 31. Rc6 Qd7 32. Rxf6 gxf6 33. Qb8+ Kh7 34. d6 Kg6 35. Qg8+ Kh5 36. Bf7+ Kh4 37. Kh2 |
| ECO C31 in 1999 play it! regan natasha defeats black's roberts david in 48 moves | 1. e4 e5 2. f4 d5 3. exd5 c6 4. dxc6 Nxc6 5. Bc4 e4 6. Nc3 Nf6 7. d3 Bb4 8. Ne2 Bg4 9. a3 Bxc3+ 10. bxc3 Qa5 11. O-O Qc5+ 12. Rf2 O-O 13. Rb1 Rad8 14. Qe1 exd3 15. cxd3 Ne4 16. dxe4 Qxc4 17. e5 Rd3 18. Bd2 Rfd8 19. Ng3 Qa2 20. Ra1 Qd5 21. Nf1 Na5 22. Ne3 Qc5 23. Nxg4 Rxd2 24. Ne3 Qxc3 |
| ECO C21 in 1990 play it! regan natasha defeats black's lubarsky eugene by checkmate in 25 moves | 1. e4 e5 2. d4 exd4 3. Bc4 Nc6 4. c3 dxc3 5. Nxc3 d6 6. Nf3 Bg4 7. Qb3 Bh5 8. Ng5 Nh6 9. Qxb7 Na5 10. Bb5+ c6 11. Bxc6+ Nxc6 12. Qxc6+ Ke7 13. Nd5# |
| ECO C17 in 2001 play it! regan natasha defeats black's shaw david a in 83 moves | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 Ne7 6. f4 O-O 7. Nf3 b6 8. Nb5 Bxd2+ 9. Qxd2 Ba6 10. Be2 Qd7 11. a4 Nbc6 12. O-O Nf5 13. g4 Nfe7 14. c3 Na5 15. Rae1 c4 16. Nh4 Bxb5 17. axb5 Ng6 18. Ng2 f5 19. exf6 Rxf6 20. g5 Rf7 21. Bg4 Nf8 22. Nh4 Qxb5 23. f5 Qc6 24. Nf3 Qd6 25. Ne5 Rb7 26. fxe6 Re8 27. Nf7 Qb8 28. Qg2 Rbe7 29. Qxd5 Qb7 30. Qxb7 Nxb7 31. d5 Nc5 32. d6 Rxe6 33. Bxe6 Rxe6 34. Rxe6 Nfxe6 35. Ne5 Nxg5 36. h4 Nge6 37. Rf7 h6 38. Rxa7 Kh7 39. Nxc4 Kg6 40. Nxb6 Kh5 41. b4 Ne4 42. Re7 |
| ECO C14 in 1995 play it! regan natasha defeats black's wuts helene in 95 moves | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 7. Nb5 f6 8. exf6 Nxf6 9. dxc5 Bxc5 10. Nh3 a6 11. Bxf6 gxf6 12. Qh5+ Ke7 13. Nc3 Qe8 14. Qh6 Qg6 15. Qd2 Qh5 16. Nf4 Qe5+ 17. Be2 Qd4 18. Nd3 Bd6 19. O-O-O Nc6 20. Qh6 f5 21. g4 Qf6 22. Qd2 fxg4 23. Bxg4 h5 24. Rde1 Qh6 25. Nxd5+ Kd8 26. Qxh6 Rxh6 27. Nb6 hxg4 28. Nxa8 b5 29. Rhg1 Rxh4 30. Nb6 Bb7 31. Rxe6 Bc7 32. Nd5 Nd4 33. Nxc7 Kxc7 34. Re7+ Kd6 35. Rge1 Bf3 36. c3 Nc6 37. R7e6+ Kc7 38. Kd2 Bd5 39. Rg6 Bxa2 40. Rg1 Bc4 41. R6xg4 Bxd3 42. Rxh4 Bc4 43. Rh6 a5 44. Rg7+ Kb6 45. Ke3 Bd5 46. f4 a4 47. f5 Kc5 48. Rc7 |
| ECO C14 in 1994 play it! regan natasha defeats black's tungalag niama in 83 moves | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 a6 7. Qg4 f5 8. Qh5+ g6 9. Qh6 Bxg5 10. hxg5 Qe7 11. Nge2 Nc6 12. O-O-O Nd8 13. Nf4 Nf7 14. Qh4 Nb6 15. Bd3 c6 16. g4 Kd8 17. gxf5 gxf5 18. g6 Qxh4 19. Rxh4 hxg6 20. Rxh8+ Nxh8 21. Rh1 Nf7 22. Nxg6 Bd7 23. Rh7 Ng5 24. Rg7 Nh3 25. f3 Kc7 26. Kd2 Rc8 27. Bf1 Ng5 28. Ke3 Kb8 29. Kf4 Nxf3 30. Kxf3 c5 31. dxc5 Rxc5 32. Bd3 Bc6 33. Ne2 Ra5 34. a3 Nc4 35. b3 Nxa3 36. Nd4 Rc5 37. Nf4 Bb5 38. Ndxe6 Rc3 39. Ne2 Rc6 40. N6d4 Rh6 41. Nxb5 Nxb5 42. Bxb5 |
| ECO C17 in 2007 play it! regan natasha defeats black's richmond jane in 56 moves | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Bd2 cxd4 6. Nb5 Bf8 7. f4 Nc6 8. Nf3 f6 9. exf6 Nxf6 10. Bd3 Bd6 11. O-O O-O 12. Kh1 a6 13. Nbxd4 Qc7 14. Qe1 Nxd4 15. Nxd4 Qf7 16. c4 Bd7 17. Bb4 Bxb4 18. Qxb4 Qh5 19. Be2 Qh4 20. Qe1 Qh6 21. Rc1 Ne4 22. f5 exf5 23. cxd5 f4 24. Kg1 Qb6 25. Qd1 Rad8 26. b3 Bb5 27. Bxb5 axb5 28. Kh1 Rf6 |