| ECO A04 in 2007 play it! speelman jonatha defeats black's fressinet lauren in 81 moves | 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Bg7 5. d4 d6 6. d5 Ne5 7. Nxe5 Bxe5 8. Bd2 e6 9. Be2 Bg7 10. O-O Nf6 11. e4 exd5 12. cxd5 O-O 13. f3 Re8 14. Rb1 Bd7 15. Kh1 a6 16. a4 Nh5 17. g4 Nf6 18. b4 b6 19. Qc2 h5 20. g5 Nh7 21. Rg1 Qc7 22. b5 Bd4 23. Rg2 axb5 24. Nxb5 Bxb5 25. Bxb5 Re7 26. Bc6 Rb8 27. Qb3 Nf8 28. Qb5 Nd7 29. f4 Nf8 30. Re2 Qc8 31. Qd3 Qg4 32. h3 Qc8 33. Kg2 f6 34. gxf6 Bxf6 35. Rbe1 Bg7 36. e5 dxe5 37. fxe5 Kh7 38. e6 Qc7 39. Bg5 Rd8 40. Qg3 Qa7 41. d6 |
| ECO A05 in 1986 play it! speelman jonatha defeats black's georgiev krum bu in 101 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. Be3 Ng4 8. Bg5 f6 9. Bh4 Nc6 10. d5 Ne7 11. Nd2 f5 12. c5 Bf6 13. Bg3 h5 14. h3 Nh6 15. cxd6 cxd6 16. f3 Kh7 17. Bf2 Bd7 18. Qb3 b6 19. h4 Nc8 20. Ba6 Ng8 21. Nb5 Bg7 22. Bb7 Rb8 23. Bxc8 Bxb5 24. exf5 Be8 25. fxg6+ Bxg6 26. Be6 Nf6 27. O-O Nd7 28. Ne4 Nc5 29. Ng5+ Kh8 30. Qe3 Nd3 31. Nf7+ Bxf7 32. Qxd3 Bxe6 33. dxe6 Qe7 34. Rfd1 Rbd8 35. Qg6 Qe8 36. Qg5 Rf6 37. Rac1 Kg8 38. Rc7 Rg6 39. Qe7 Qxe7 40. Rxe7 d5 41. Be3 Bf8 42. Rxa7 Rxe6 43. Bg5 Rdd6 44. f4 exf4 45. Bxf4 Rd8 46. Bg5 Bc5+ 47. Kh2 Bd6+ 48. Kh3 Rde8 49. g3 Rf8 50. Rxd5 Rf2 51. Bf4 |
| ECO A05 in 2003 play it! speelman jonatha defeats black's greger roland in 109 moves | 1. Nf3 Nf6 2. d4 c5 3. e3 g6 4. Be2 Bg7 5. O-O b6 6. c4 O-O 7. Nc3 d6 8. d5 Bg4 9. e4 a6 10. h3 Bxf3 11. Bxf3 Ra7 12. Bf4 Rb7 13. a4 Nbd7 14. Qd2 Ne5 15. Be2 e6 16. Rfe1 Nh5 17. Bg5 Qb8 18. Rad1 Re8 19. Bxh5 gxh5 20. Qe2 h6 21. Bc1 Qd8 22. Qxh5 Qf6 23. Qe2 Ng6 24. g3 e5 25. Rd3 Ne7 26. h4 Qg6 27. h5 Qh7 28. Bd2 f5 29. Rb1 a5 30. exf5 Nxf5 31. Qe4 Rf8 32. g4 Nd4 33. Qxh7+ Kxh7 34. Ne4 Rbf7 35. Kg2 Rf3 36. Rxf3 Nxf3 37. Be3 Nd4 38. Nxd6 Bf6 39. Ne4 Be7 40. Rf1 Nf3 41. Nd2 Nd4 42. f3 Nc2 43. Kf2 Bg5 44. Bxg5 hxg5 45. Rc1 Nd4 46. Re1 Re8 47. Ne4 Kh6 48. Nd6 Rf8 49. Re3 Rf4 50. b3 Rf8 51. Nb5 Re8 52. Nc7 Rc8 53. Ne6 Re8 54. Rxe5 Nxb3 55. Nxg5 |
| ECO A08 in 1999 play it! speelman jonatha defeats black's ward christopher in 111 moves | 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 cxd4 5. Nxd4 Qb6 6. Nb3 Nf6 7. Be3 Qd8 8. O-O Bg4 9. h3 Bh5 10. c4 e6 11. Nc3 dxc4 12. Nd4 Qd7 13. Nxc6 bxc6 14. Qxd7+ Kxd7 15. Rfd1+ Nd5 16. Rd4 Rb8 17. Nxd5 cxd5 18. Bxd5 exd5 19. Rxd5+ Ke6 20. Rxh5 Rxb2 21. Ra5 Bd6 22. Ra6 c3 23. Rc1 c2 24. Kg2 Rc8 25. Bf4 Rb6 26. Rxb6 axb6 27. Bxd6 Kxd6 28. Kf1 Rc6 29. Ke1 Kd7 30. h4 h5 31. e3 b5 32. Kd2 Rf6 33. Ke2 Ra6 34. Rxc2 Ra3 35. Kf3 Ra4 36. e4 g6 37. Kf4 Ke6 38. f3 Kf6 39. Rb2 Ra3 40. g4 hxg4 41. Kxg4 Ra4 42. h5 gxh5+ 43. Kxh5 Ra3 44. Kg4 Ra4 45. Kf4 Ra3 46. Rc2 Ke6 47. Kg4 Kf6 48. f4 Ra4 49. e5+ Ke6 50. Kg5 Ra6 51. Rc5 Rxa2 52. f5+ Ke7 53. Rc7+ Ke8 54. Kf6 Rf2 55. Re7+ Kd8 56. Rb7 |
| ECO A04 in 1989 play it! speelman jonatha defeats black's chandler murray in 71 moves | 1. Nf3 c5 2. g3 g6 3. Bg2 Bg7 4. O-O Nc6 5. c4 e6 6. Nc3 Nge7 7. d3 O-O 8. Bd2 b6 9. a3 d5 10. Rb1 Bb7 11. cxd5 exd5 12. b4 c4 13. b5 Na5 14. Na4 Rc8 15. d4 Nb3 16. Bb4 Re8 17. e3 a6 18. bxa6 Bxa6 19. Nd2 Nc6 20. Nxb3 cxb3 21. Qxb3 Bc4 22. Qb2 Nxb4 23. axb4 Bxf1 24. Rxf1 Rc4 25. Nc3 Qd6 26. Nxd5 Rec8 27. b5 Bf8 28. Qa1 Be7 29. Nxe7+ Qxe7 30. Bc6 h5 31. h4 g5 32. Qd1 gxh4 33. Qxh5 hxg3 34. Qg4+ Kh7 35. Be4+ Kh6 36. Qh3+ |
| ECO A05 in 1984 play it! speelman jonatha defeats black's yudasin leonid i in 61 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 b6 4. e4 Bb7 5. Bd3 c5 6. e5 Ng4 7. O-O Nc6 8. Be4 Qc8 9. Re1 d6 10. exd6 Bxd6 11. d4 Nxd4 12. Bxb7 Qxb7 13. Nxd4 Bxh2+ 14. Kf1 cxd4 15. Qxg4 dxc3 16. Qh5 Bd6 17. Rxe6+ Be7 18. Bg5 cxb2 19. Rb1 O-O 20. Rxe7 Qc6 21. Rxb2 Qxc4+ 22. Qe2 Qc5 23. Re5 Qc3 24. Rc2 Qb4 25. Rc1 Qa3 26. Re1 Qa4 27. Qe4 Qa6+ 28. Kg1 Rac8 29. Be7 Rfe8 30. Qg4 Qc4 31. Bf6 |
| ECO A05 in 1980 play it! speelman jonatha defeats black's jansa vlastimil in 59 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d5 8. cxd5 exd5 9. d4 O-O 10. Bg5 Na6 11. Rc1 h6 12. Bxf6 Bxf6 13. e3 Qe7 14. dxc5 Nxc5 15. Nd4 Qd7 16. Re2 Ne4 17. Rec2 Rac8 18. Bf3 Ng5 19. Bg4 Ne6 20. Ncb5 Rxc2 21. Rxc2 Bxd4 22. Nxd4 Rc8 23. Rxc8+ Bxc8 24. h4 Qc7 25. Bf3 Bb7 26. Nf5 Qd7 27. Bxd5 g6 28. Qf3 Ng5 29. hxg5 Bxd5 30. Qxd5 |
| ECO A05 in 1989 play it! speelman jonatha defeats black's short nigel d en in 97 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 b6 4. e4 Bb7 5. Bd3 c5 6. e5 Ng4 7. O-O Nc6 8. Be4 f5 9. exf6 Nxf6 10. Bxc6 Bxc6 11. d4 Bxf3 12. Qxf3 cxd4 13. Nb5 Rc8 14. Bf4 a6 15. Nxd4 Rxc4 16. Rfd1 Qc8 17. Rac1 Kf7 18. Qe2 Rxc1 19. Rxc1 Qa8 20. Nf3 Bc5 21. Ne5+ Ke7 22. Bg5 Rf8 23. Rd1 d6 24. b4 dxe5 25. bxc5 bxc5 26. Qc2 Kf7 27. Bxf6 Kxf6 28. Rd3 e4 29. Qc3+ Kf5 30. Rd7 e3 31. Qxc5+ Kg6 32. Qxe3 Qc6 33. Qg3+ Kf5 34. Qh3+ Ke5 35. Qg3+ Kf5 36. Rc7 Qe4 37. h4 h6 38. Rxg7 Qe1+ 39. Kh2 Qe5 40. Ra7 Qxg3+ 41. Kxg3 Rg8+ 42. Kh3 Rc8 43. Rxa6 Rc3+ 44. g3 h5 45. Ra5+ e5 46. f4 Ke4 47. fxe5 Kf3 48. e6 Kf2 49. Rf5+ |
| ECO A05 in 1996 play it! speelman jonatha defeats black's koskinen h in 51 moves | 1. Nf3 Nf6 2. d4 d5 3. c4 c6 4. e3 e6 5. Nbd2 Nbd7 6. Bd3 c5 7. cxd5 Nxd5 8. O-O Be7 9. Nb3 cxd4 10. Nbxd4 O-O 11. a3 Bf6 12. Re1 g6 13. e4 Ne7 14. Bh6 Bg7 15. Bxg7 Kxg7 16. e5 Nf5 17. Nxf5+ gxf5 18. Bf1 Nb6 19. Nd4 Bd7 20. Qh5 Nd5 21. Rad1 Bc6 22. Nxc6 bxc6 23. Re3 Rh8 24. Rg3+ Kf8 25. Qh6+ Ke7 26. Rxd5 |
| ECO A05 in 2005 play it! speelman jonatha defeats black's allicock rawle a in 75 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. a3 d5 7. cxd5 Nxd5 8. Nxc6 bxc6 9. Bd2 Bd6 10. Qc2 O-O 11. e3 Rb8 12. Bd3 Qh4 13. Ne4 Be5 14. Rb1 Rd8 15. g3 Qe7 16. O-O f5 17. Nc5 Rxb2 18. Rxb2 Bxb2 19. Qxb2 Qxc5 20. Rc1 Qb6 21. Qc2 Bd7 22. Rb1 Qc7 23. e4 fxe4 24. Bxe4 h6 25. Bxh6 Be8 26. Bg5 Rb8 27. Rxb8 Qxb8 28. Bc1 Qd6 29. Bb2 c5 30. Qd2 Bf7 31. Qg5 Qf8 32. Qh4 Qe7 33. Qh7+ Kf8 34. Bxg7+ Ke8 35. Qh8+ Kd7 36. Qa8 Qg5 37. Qb7+ Kd6 38. Qxf7 |
| ECO A05 in 1988 play it! speelman jonatha defeats black's sax gy in 123 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Qb6 6. Nb3 e6 7. a3 Ne5 8. Be3 Qd8 9. Bf4 d6 10. c5 a6 11. e3 Qc7 12. cxd6 Qxd6 13. Be2 Be7 14. O-O O-O 15. Rc1 Qxd1 16. Rfxd1 Nc6 17. Bd6 Bxd6 18. Rxd6 Rd8 19. Rxd8+ Nxd8 20. Na4 Bd7 21. Nb6 Rb8 22. Nxd7 Nxd7 23. Rc7 Nb6 24. Nc5 Nd5 25. Rd7 a5 26. Bb5 b6 27. Ne4 Nf6 28. Nxf6+ gxf6 29. Rd6 Kg7 30. f4 Kf8 31. Kf2 Ke7 32. Rd7+ Kf8 33. Kf3 Nb7 34. b4 axb4 35. axb4 Nd8 36. g4 Rc8 37. Rd6 Rb8 38. h4 h6 39. Ke2 Ke7 40. Rd7+ Kf8 41. Kf3 Rc8 42. Ba6 Ra8 43. b5 Ke8 44. Rc7 f5 45. e4 fxg4+ 46. Kxg4 Kf8 47. f5 Kg7 48. Kf4 Kf6 49. e5+ Kg7 50. f6+ Kg6 51. Kg4 Rb8 52. Ra7 h5+ 53. Kf4 Kh6 54. Re7 Kg6 55. Re8 Kh6 56. Rf8 Kg6 57. Rh8 Nc6 58. bxc6 Rxh8 59. c7 b5 60. c8=Q Rxc8 61. Bxc8 b4 62. Bxe6 |
| ECO A04 in 2003 play it! speelman jonatha defeats black's wall gavin in 85 moves | 1. Nf3 g6 2. e4 c5 3. Bc4 Bg7 4. O-O Nc6 5. c3 e6 6. Re1 Nge7 7. Bf1 d5 8. e5 d4 9. d3 h6 10. h4 Qc7 11. Qe2 a6 12. cxd4 Nxd4 13. Nxd4 cxd4 14. Bf4 Bd7 15. Nd2 g5 16. Bh2 gxh4 17. Ne4 Nf5 18. Nf6+ Bxf6 19. exf6 Qb6 20. Qh5 Kf8 21. Bf4 Rc8 22. Re5 Rc5 23. Rxc5 Qxc5 24. Rc1 Qb5 25. Rc7 Rg8 26. Qf3 Bc6 27. a4 Qb6 28. Rc8+ Be8 29. Bc7 Qxb2 30. a5 Rg6 31. Bb6 Qb5 32. Bc5+ Kg8 33. Qf4 Kh7 34. Qb8 Rg8 35. Kh2 Kg6 36. Be2 Kxf6 37. Bf3 Rg5 38. Bb6 Bc6 39. Bd8+ Kg6 40. Bxc6 bxc6 41. Qxb5 cxb5 42. Bxg5 hxg5 43. Rc6 |
| ECO A05 in 2000 play it! speelman jonatha defeats black's macieja bartlomi in 69 moves | 1. Nf3 Nf6 2. d4 e6 3. c3 c5 4. Bg5 cxd4 5. cxd4 Qb6 6. Qc2 Nc6 7. Bxf6 gxf6 8. e3 d5 9. Nc3 Bd7 10. Be2 Rc8 11. O-O f5 12. Rfc1 Nb8 13. Ne5 Bd6 14. f4 O-O 15. Bh5 f6 16. Nxd7 Nxd7 17. Qe2 Bb4 18. Kh1 Kh8 19. Rab1 Qa5 20. Rg1 Qa6 21. Nb5 Qb6 22. a3 a6 23. Na7 Qxa7 24. axb4 Qb6 25. g4 fxg4 26. Qxg4 Rg8 27. Qh4 Qd6 28. f5 exf5 29. Bg6 Qe7 30. Bxf5 Rxg1+ 31. Rxg1 Rf8 32. Qg4 Nb6 33. Be6 h5 34. Qf4 Qh7 35. Bf5 |
| ECO A05 in 2006 play it! speelman jonatha defeats black's sutovsky emil is in 71 moves | 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. c3 c5 7. Be2 Be6 8. dxc5 dxc5 9. O-O Qb6 10. Qc1 Nc6 11. Nbd2 Bf5 12. Nh4 Be6 13. e4 Rad8 14. Qc2 Nd7 15. Nhf3 Nde5 16. Nxe5 Nxe5 17. Be3 Qc7 18. f4 Bh6 19. g4 Nc6 20. Rf3 f5 21. exf5 gxf5 22. g5 Bg7 23. Nf1 Bd5 24. Rf2 Be4 25. Qb3+ Kh8 26. Bxc5 Ne5 27. Bxa7 Ng6 28. Qb6 Qc8 29. Ng3 Bc6 30. Nh5 e5 31. Nxg7 Nxf4 32. Rxf4 exf4 33. Nh5 Qe6 34. Qf2 h6 35. Bd4+ Kh7 36. Nxf4 |
| ECO A04 in 1988 play it! speelman jonatha defeats black's kortchnoi viktor in 53 moves | 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. Bg5 Be6 8. Bxf6 exf6 9. Be2 Bg7 10. O-O O-O 11. Qd2 dxc4 12. d5 Ne5 13. Nxe5 fxe5 14. Bxc4 Bf5 15. d6 Qh4 16. Bb3 Rad8 17. Rad1 e4 18. Qd5 Rd7 19. Rfe1 Re8 20. g3 Qg4 21. h3 Qxh3 22. Nxe4 Bxe4 23. Rxe4 Rxe4 24. Qxe4 Bf6 25. Rc1 Kg7 26. Rc7 h5 27. Be6 |
| ECO A04 in 1987 play it! speelman jonatha defeats black's condie mark l sc in 61 moves | 1. Nf3 f5 2. d3 Nf6 3. e4 d6 4. e5 dxe5 5. Nxe5 Nbd7 6. f4 g6 7. Nd2 Bg7 8. d4 e6 9. c3 O-O 10. Bc4 Nxe5 11. fxe5 Nd5 12. Nf3 b6 13. h4 Bb7 14. h5 gxh5 15. Ng5 Qe8 16. Qxh5 h6 17. Nf3 Qxh5 18. Rxh5 Kf7 19. Kf2 Rh8 20. Bd2 c5 21. dxc5 bxc5 22. Rah1 Kg6 23. Ne1 Rad8 24. Nd3 Bf8 25. Be3 Kf7 26. Bxh6 Be7 27. Bc1 Rxh5 28. Rxh5 Rg8 29. g3 Rg4 30. Nf4 Kg8 31. Rh6 |
| ECO A05 in 2001 play it! speelman jonatha defeats black's graf alexander in 77 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Nbd7 5. cxd5 exd5 6. Bf4 c6 7. h3 Nb6 8. Qc2 g6 9. e3 Bf5 10. Bd3 Bxd3 11. Qxd3 Bg7 12. O-O Qe7 13. Bg5 O-O 14. Rfe1 Qe6 15. Bxf6 Qxf6 16. Rab1 Qd6 17. b4 a6 18. a4 f5 19. g3 Rac8 20. Nd2 Qe6 21. Kg2 Rc7 22. Nb3 Rfc8 23. Nc5 Qf7 24. b5 cxb5 25. axb5 a5 26. N3a4 Nxa4 27. Nxa4 Bf8 28. Nb6 Rc3 29. Qd2 Rc2 30. Qxa5 R8c3 31. Qa8 Qe7 32. Kg1 Qe4 33. Nd7 Qe7 34. Qxb7 Rd2 35. Qxd5+ Kg7 36. b6 Rcc2 37. b7 Rxf2 38. b8=Q Rg2+ 39. Qxg2 |
| ECO A05 in 1986 play it! speelman jonatha defeats black's chandler murray in 85 moves | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 dxc4 5. Bg2 a6 6. O-O b5 7. Ne5 Nd5 8. Nc3 Bb7 9. Nxd5 exd5 10. b3 cxb3 11. Qxb3 Be7 12. a4 c6 13. e4 b4 14. a5 Nd7 15. exd5 Nxe5 16. dxe5 cxd5 17. Bd2 Rb8 18. Bxb4 O-O 19. Rab1 Bxb4 20. Qxb4 g6 21. Rfd1 Qc7 22. Qd6 Qxd6 23. exd6 Bc6 24. Rxb8 Rxb8 25. Bxd5 Bxd5 26. Rxd5 Rd8 27. Kg2 Kg7 28. Kf3 Kf6 29. d7 Ke6 30. Ke4 f6 31. Kd4 Rxd7 32. Rxd7 Kxd7 33. Kc5 Kc7 34. h3 h6 35. f3 h5 36. f4 g5 37. f5 g4 38. h4 Kd7 39. Kd5 Ke7 40. Kc6 Ke8 41. Kd6 Kf7 42. Kd7 Kf8 43. Ke6 |
| ECO A05 in 1991 play it! speelman jonatha defeats black's kosten anthony c in 81 moves | 1. Nf3 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Be2 d5 6. a3 Be7 7. d4 b6 8. O-O Bb7 9. b4 a5 10. b5 dxc4 11. Qc2 Nd5 12. Bb2 Nxc3 13. Qxc3 c6 14. bxc6 Bxc6 15. Qxc4 b5 16. Qc2 Qb6 17. Ne5 Bd5 18. Bd3 g6 19. Qe2 b4 20. axb4 Bxb4 21. e4 Bb7 22. d5 exd5 23. exd5 Qd6 24. Qf3 f6 25. Nc4 Bxd5 26. Qe3 Bxc4 27. Bxc4+ Kg7 28. h4 Nc6 29. Rad1 Qe7 30. Qh3 Rad8 31. h5 Ne5 32. h6+ Kh8 33. Bb3 Rd2 34. Rxd2 Bxd2 35. Rd1 Bb4 36. f4 Nc6 37. Qf3 Bc5+ 38. Kh1 Nb4 39. f5 Bd6 40. Rxd6 Qxd6 41. Qb7 |
| ECO A05 in 1986 play it! speelman jonatha defeats black's de castro edgar in 77 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. Be3 Qe7 8. d5 Ng4 9. Bg5 f6 10. Bh4 Qe8 11. Nd2 f5 12. h3 Nh6 13. g4 fxg4 14. hxg4 Nf7 15. g5 Nd7 16. Nf1 Qe7 17. Qd2 a5 18. O-O-O Nc5 19. Ne3 Nd8 20. Ng4 Bxg4 21. Bxg4 Rf4 22. f3 Nf7 23. Rdg1 c6 24. Kb1 Rb8 25. Rg2 a4 26. Ne2 b5 27. cxb5 cxd5 28. Qxd5 Rxb5 29. Qa8+ Qf8 30. Qxf8+ Kxf8 31. Rd1 Rb8 32. Rd5 Ke7 33. Be1 Nxg5 34. Nxf4 exf4 35. Rxg5 Nd3 36. Bh4 Bf6 37. Rd5 h5 38. Bxf6+ Kxf6 39. Rxd6+ |