| ECO A04 in 1986 play it! speelman jonatha defeats white's alburt lev o in 92 moves | 1. Nf3 b6 2. d4 Bb7 3. g3 g6 4. Bg2 Bg7 5. O-O Nf6 6. c4 e6 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Bg5 Qc8 10. Qd2 h6 11. Bf4 d6 12. Ne1 Bxg2 13. Kxg2 Qa6 14. b3 Nc6 15. Be3 Ne7 16. f3 c5 17. Nc2 Rd8 18. a4 d5 19. cxd5 Rxd5 20. Bf2 cxd4 21. Nb4 Qa5 22. Rac1 O-O 23. Rfd1 Rc5 24. Rxc5 bxc5 25. Nd3 Qb6 26. Qc2 Nd5 27. Qc4 Rc8 28. Rc1 Qd8 29. Nxc5 Qg5 30. h4 Ne3+ 31. Bxe3 Qxe3 32. Rc2 Bf8 33. b4 a5 34. Qa6 d3 35. exd3 Rd8 36. Qxa5 Rd5 37. Qa8 Kg7 38. a5 Bxc5 39. bxc5 Qxd3 40. Rf2 Rxc5 41. Qa7 Rc1 42. g4 Qd1 43. Rb2 Qh1+ 44. Kg3 e5 45. Qb8 Rg1+ 46. Kf2 Rf1+ |
| ECO A09 in 1987 play it! speelman jonatha defeats white's botterill george in 84 moves | 1. Nf3 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. d4 a6 6. O-O c5 7. Qe2 b5 8. Bb3 Bb7 9. Rd1 Nbd7 10. Nc3 Qb8 11. d5 exd5 12. Bxd5 Nxd5 13. Nxd5 Bxd5 14. Rxd5 Qb7 15. e4 Be7 16. Bg5 Nb6 17. Rad1 h6 18. Bxe7 Nxd5 19. Bxc5 Ne7 20. Ne5 Rc8 21. Qg4 O-O 22. b4 Rfd8 23. Re1 Nc6 24. Nxc6 Qxc6 25. h4 Rd3 26. e5 Qe6 27. Qe4 Rcd8 28. Bd6 Rd2 29. a3 Re8 30. Qe3 Qd5 31. Rc1 Rd3 32. Qa7 Rxa3 33. Qd7 Qe6 34. Qxe6 Rxe6 35. Rc8+ Kh7 36. h5 Rd3 37. Rc6 f6 38. f4 fxe5 39. fxe5 Rd5 40. Rc8 Rdxe5 41. Bxe5 Rxe5 42. Rc5 Re4 |
| ECO A04 in 1988 play it! speelman jonatha defeats white's rechlis gad isr in 56 moves | 1. Nf3 g6 2. g3 Bg7 3. Bg2 d5 4. O-O e5 5. d3 Ne7 6. e4 O-O 7. Nbd2 Nbc6 8. c3 a5 9. a4 h6 10. exd5 Nxd5 11. Nc4 Ra6 12. Re1 Re8 13. Nfd2 Be6 14. Nb3 b6 15. Nbd2 Qd7 16. Nf3 f6 17. d4 Nxc3 18. Qd3 e4 19. Qxc3 exf3 20. Bxf3 Nxd4 21. Bg2 b5 22. axb5 Nxb5 23. Qb3 a4 24. Qc2 Nd4 25. Qxg6 Bf7 26. Rxe8+ Qxe8 27. Qd3 Nb3 28. Rb1 Bg6 |
| ECO A04 in 1997 play it! speelman jonatha defeats white's aakesson ralf in 90 moves | 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. d4 Nf6 6. c4 e6 7. Nc3 Ne4 8. Nxe4 Bxe4 9. Bg5 Qc8 10. Qd2 h6 11. Be3 d6 12. d5 Nd7 13. Nd4 Bxg2 14. Kxg2 Qb7 15. Nc6 Ne5 16. Nxe5 dxe5 17. Rfd1 O-O-O 18. f3 Rd7 19. Bf2 exd5 20. cxd5 e4 21. fxe4 Re8 22. Qc2 f5 23. exf5 Rxd5 24. Kg1 gxf5 25. Rac1 Rxd1+ 26. Rxd1 Qe4 27. Rd2 Qxc2 28. Rxc2 Re4 29. Kg2 Kd7 30. Kf3 c5 31. b3 Kc6 32. h3 h5 33. Rc4 Kd5 34. Rxe4 fxe4+ 35. Kf4 b5 36. Kg5 c4 37. bxc4+ bxc4 38. Kxh5 Bd4 39. Be1 c3 40. Kg6 Kc4 41. Kf5 e3 42. Bxc3 Kxc3 43. Ke4 Kd2 44. Kf3 Ba1 45. h4 Bf6 |
| ECO A07 in 2007 play it! speelman jonatha defeats white's ledger andrew in 70 moves | 1. Nf3 d5 2. g3 Bg4 3. Bg2 c6 4. b3 Nd7 5. Bb2 e6 6. O-O Ngf6 7. c4 Bd6 8. d3 O-O 9. Nbd2 Qe7 10. h3 Bh5 11. a3 a5 12. Qc2 Rfe8 13. e3 h6 14. Nh4 Nf8 15. f4 Ng6 16. Nxg6 Bxg6 17. Nf3 Nd7 18. e4 dxe4 19. dxe4 Nf6 20. Ne5 Bh7 21. Qe2 Bc5+ 22. Kh2 Red8 23. Ng4 Nxe4 24. Bxe4 Bxe4 25. Bxg7 Kxg7 26. Qxe4 f5 27. Qe5+ Kg6 28. Rae1 Rd2+ 29. Re2 Rxe2+ 30. Qxe2 fxg4 31. Qxg4+ Kh7 32. f5 Rg8 33. Qe4 exf5 34. Qxf5+ Kh8 35. Qh5 Qg5 |
| ECO A04 in 1996 play it! speelman jonatha defeats white's fridman daniel l in 80 moves | 1. Nf3 b6 2. b3 Bb7 3. Bb2 e6 4. e3 f5 5. c4 Nf6 6. Nc3 g6 7. Be2 Bg7 8. O-O O-O 9. d4 Ne4 10. Qc2 d6 11. Rfd1 Nd7 12. d5 Nxc3 13. Bxc3 Bxc3 14. Qxc3 e5 15. b4 a5 16. a3 Rf7 17. Rac1 Qf6 18. Qb2 Bc8 19. Rd2 g5 20. Ne1 g4 21. Nd3 Qg5 22. c5 bxc5 23. bxc5 f4 24. exf4 exf4 25. cxd6 cxd6 26. Rdc2 Ba6 27. Ne1 Bxe2 28. Rc8+ Rxc8 29. Rxc8+ Nf8 30. Qxe2 Re7 31. Qd2 Kf7 32. Qxa5 Nd7 33. Nd3 Nc5 34. Nxc5 Qxd5 35. h4 g3 36. fxg3 fxg3 37. Rf8+ Kxf8 38. Nd7+ Kg7 39. Qc3+ Kf7 40. Qxg3 Rxd7 |
| ECO A04 in 2007 play it! speelman jonatha defeats white's cummings david in 86 moves | 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. c4 c5 6. Nc3 Nf6 7. Re1 Ne4 8. Qc2 Nxc3 9. dxc3 d6 10. Bg5 Nd7 11. Rad1 Qc7 12. e4 h6 13. Bc1 g5 14. Qe2 Bf6 15. Nd2 h5 16. Nf1 O-O-O 17. Ne3 e6 18. f4 gxf4 19. gxf4 Bh4 20. Rf1 Rdg8 21. Kh1 Nf6 22. e5 dxe5 23. fxe5 Ne4 24. Nd5 exd5 25. cxd5 Nf2+ 26. Rxf2 Bxf2 27. Qxf2 Qxe5 28. c4 Re8 29. Bf4 Qf5 30. Qf3 Rhg8 31. Bh3 Rg4 32. Rg1 Qe4 33. Bxg4+ hxg4 34. Qxe4 Rxe4 35. Rxg4 Rxc4 36. Rg8+ Kd7 37. Be5 Bxd5+ 38. Kg1 Re4 39. Bg3 Re2 40. a4 Rxb2 41. a5 c4 42. Be5 Re2 43. Bd4 Rd2 |
| ECO A09 in 1987 play it! speelman jonatha defeats white's larsen bent in 88 moves | 1. Nf3 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. O-O a6 6. b3 Be7 7. Bb2 O-O 8. d4 b5 9. Be2 Bb7 10. Nbd2 Nbd7 11. a4 Qb8 12. Qb1 c5 13. Rc1 cxd4 14. Nxd4 Bb4 15. N2f3 bxa4 16. Rxa4 Be4 17. Qa1 a5 18. Nc6 Bxc6 19. Rxc6 Qb7 20. Rc1 Rac8 21. Nd4 Nc5 22. Bf3 Qb6 23. Nc6 Nxb3 24. Bd4 Qb5 25. Rxb4 axb4 26. Qb2 Nxd4 27. Ne7+ Kh8 28. Nxc8 Nxf3+ 29. gxf3 Qb7 30. Nd6 Qxf3 31. Qxb4 h6 32. Qh4 Qd5 33. Qf4 Kg8 34. e4 Qd4 35. Rc4 Qd1+ 36. Kg2 Nh5 37. Qf3 Qxd6 38. Qxh5 Qd3 39. Qb5 Qe2 40. h3 Rd8 41. Rb4 Qe1 42. Qa4 Rd1 43. Rb3 Qg1+ 44. Kf3 Rd2 |
| ECO A04 in 1998 play it! speelman jonatha defeats white's appel ralf in 84 moves | 1. Nf3 b6 2. g3 Bb7 3. Bg2 g6 4. O-O Bg7 5. d4 Nf6 6. c4 O-O 7. Qb3 e6 8. Re1 Qc8 9. Bf4 c5 10. Nbd2 cxd4 11. Nxd4 Bxg2 12. Kxg2 Nh5 13. Be3 f5 14. f3 Nc6 15. Nxc6 Qxc6 16. Nf1 f4 17. Bf2 fxg3 18. hxg3 g5 19. Rad1 g4 20. Nh2 Nf6 21. Bd4 Rac8 22. Bxf6 gxf3+ 23. exf3 Rxf6 24. Ng4 Rf7 25. Rc1 Rcf8 26. Nh2 Rf5 27. Rc2 Rc5 28. Ree2 Qc7 29. Qd3 Rg5 30. Nf1 Be5 31. Qe3 Bf4 32. Qf2 Rf6 33. Re4 Rfg6 34. g4 h5 35. Qd4 Be5 36. Qd3 hxg4 37. f4 Bxf4 38. Rf2 Be5 39. Ne3 d6 40. Qf1 Qg7 41. c5 g3 42. Rf3 Qh6 |
| ECO A05 in 2005 play it! speelman jonatha defeats white's knott simon j b in 104 moves | 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. d4 Bg7 6. Nc3 Ne4 7. Nxe4 Bxe4 8. O-O O-O 9. Be3 d6 10. Qd2 Nd7 11. Bh6 Nf6 12. Bxg7 Kxg7 13. Rfd1 c5 14. Rac1 Qc7 15. Ne1 Bxg2 16. Nxg2 cxd4 17. Qxd4 Rfc8 18. Ne3 Kg8 19. b4 a5 20. a3 axb4 21. axb4 Ra4 22. Qb2 Rca8 23. Ra1 Qa7 24. Rxa4 Qxa4 25. Rb1 Qa2 26. f3 Kf8 27. Kf2 Qxb2 28. Rxb2 e6 29. Rc2 Nd7 30. Ke1 Ra4 31. Rb2 Ra1+ 32. Kd2 g5 33. f4 gxf4 34. gxf4 Ra3 35. Nc2 Rh3 36. Ra2 Nf6 37. Ra6 d5 38. cxd5 Nxd5 39. e4 Rxh2+ 40. Kd1 Nxf4 41. Rxb6 h5 42. Rb8+ Kg7 43. b5 h4 44. b6 Rh1+ 45. Ne1 Nd3 46. b7 Rxe1+ 47. Kc2 Nb4+ 48. Kd2 Na6 49. Ra8 Rxe4 50. Rxa6 Rb4 51. Ra4 Rxb7 52. Rxh4 f5 |
| ECO A05 in 1982 play it! speelman jonatha defeats white's gutman l in 106 moves | 1. Nf3 Nf6 2. d4 e6 3. g3 b5 4. Bg2 Bb7 5. O-O c5 6. c3 Na6 7. Bf4 Be7 8. Na3 cxd4 9. cxd4 Qb6 10. Qd3 Bc6 11. Ne5 Nb4 12. Qb3 Bxg2 13. Kxg2 O-O 14. Rfd1 a5 15. Bg5 h6 16. Bxf6 Bxf6 17. Qf3 Rad8 18. e3 d6 19. Nd3 Nxd3 20. Rxd3 Rc8 21. Rd2 d5 22. Nc2 Be7 23. e4 Bg5 24. Re2 dxe4 25. Qxe4 Rfd8 26. Rd1 Qc6 27. Qxc6 Rxc6 28. f4 Bf6 29. Kf3 Rc4 30. Red2 h5 31. Ke4 a4 32. a3 g6 33. Ne3 Rc7 34. d5 Rcd7 35. Rc2 Kg7 36. Rdd2 Be7 37. Rc6 exd5+ 38. Rxd5 Bf6 39. Rxb5 Re8+ 40. Re5 Bxe5 41. fxe5 Rd2 42. h4 Rxb2 43. Rc7 Re2 44. Kf3 Re1 45. Nc4 Rd8 46. Kf2 Re4 47. Kf3 Rdd4 48. Nd6 Rxe5 49. Nxf7 Red5 50. Ng5+ Rd7 51. Rc6 Rd3+ 52. Kg2 Rxa3 53. Ne6+ Kg8 |
| ECO A30 in 1988 play it! speelman jonatha defeats white's seirawan y in 106 moves | 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. a3 d6 6. e3 Nf6 7. Nge2 O-O 8. O-O Bf5 9. e4 Bg4 10. f3 Bd7 11. d3 Ne8 12. Be3 Nc7 13. Rb1 a5 14. a4 Ne6 15. f4 Ned4 16. h3 e6 17. Nb5 Qe7 18. Kh2 Rac8 19. Nexd4 Nxd4 20. Nxd4 cxd4 21. Bd2 Ra8 22. b3 Bc6 23. Qe2 Qc7 24. Qf2 f5 25. exf5 gxf5 26. g4 Kh8 27. gxf5 Rxf5 28. Be4 Rf7 29. Rg1 Raf8 30. Rg4 e5 31. Rbg1 Bxe4 32. dxe4 exf4 33. Rxg7 Rxg7 34. Qxd4 Kg8 35. Bxa5 Qe7 36. Bc3 Rxg1 37. Qh8+ Kf7 38. Qxh7+ Ke8 39. Qh5+ Qf7 40. Qxf7+ Kxf7 41. Kxg1 Re8 42. Bb4 Ke6 43. c5 dxc5 44. Bxc5 Ke5 45. h4 Kxe4 46. Kf2 Rd8 47. Ke2 Rd3 48. b4 Rh3 49. Bf2 Rb3 50. Bc5 Rb2+ 51. Ke1 Kf3 52. a5 Rh2 53. b5 Re2+ |
| ECO A10 in 1993 play it! speelman jonatha defeats white's quinn mark in 62 moves | 1. c4 b6 2. d4 Bb7 3. Qc2 e6 4. e4 Qh4 5. Nd2 Bb4 6. Bd3 Qg4 7. Kf1 f5 8. Ngf3 Bxd2 9. Ne5 Qh4 10. Nf3 Qh5 11. Bxd2 Nf6 12. exf5 Bxf3 13. gxf3 Nc6 14. Bc3 O-O-O 15. Re1 Rhe8 16. Re2 Qh3+ 17. Ke1 Qxf3 18. Rg1 Qf4 19. Rxg7 exf5 20. Qd2 Rxe2+ 21. Kxe2 Re8+ 22. Kf1 Qxh2 23. Bxf5 Ne7 24. Bd3 Ng6 25. f3 Qh1+ 26. Kf2 Rf8 27. Qg5 Nh4 28. Ke2 Qxf3+ 29. Kd2 Ne4+ 30. Bxe4 Qxe4 31. Qg4 Rf2+ |
| ECO A26 in 1984 play it! speelman jonatha defeats white's kraehenbuehl g in 56 moves | 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Rb1 a5 7. Nh3 h5 8. f4 h4 9. Nf2 exf4 10. Bxf4 Nd4 11. Qd2 Ne6 12. O-O Nxf4 13. Qxf4 hxg3 14. Ng4 f5 15. c5 Rh4 16. h3 Nh6 17. Nb5 Be5 18. Nxc7+ Qxc7 19. Qg5 Nxg4 20. Qxh4 Qxc5+ 21. Kh1 Nf2+ 22. Rxf2 gxf2 23. Qh6 Be6 24. Rc1 f1=Q+ 25. Rxf1 Kf7 26. Rc1 Qb6 27. e4 Rh8 28. Qg5 f4 |
| ECO A13 in 1979 play it! speelman jonatha defeats white's cummings d in 56 moves | 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 Nc6 8. e3 b6 9. Nc3 Bb7 10. cxd5 Nxd5 11. Nxd5 exd5 12. d4 Re8 13. dxc5 bxc5 14. Qd2 Qb6 15. Ne5 Nxe5 16. Bxe5 Bf8 17. Bc3 a5 18. Bxd5 Rad8 19. Bxa5 Rxd5 20. Qxd5 Qa6 21. Qd2 Bf3 22. e4 Rxe4 23. Qc3 Rf4 24. Bc7 Rf5 25. Bf4 Rxf4 26. Qe5 Rf6 27. h3 Qc8 28. Kh2 Qxh3+ |
| ECO A10 in 1976 play it! speelman jonatha defeats white's parr frank in 58 moves | 1. c4 g6 2. g3 Bg7 3. Bg2 c5 4. Nc3 Nc6 5. e4 a6 6. Nge2 b5 7. d3 Rb8 8. O-O e6 9. f4 Nge7 10. e5 Nf5 11. g4 Nh4 12. Bxc6 dxc6 13. Ne4 O-O 14. f5 exf5 15. Bg5 fxe4 16. Bxd8 Rxd8 17. Ng3 Nf3+ 18. Rxf3 exf3 19. Qxf3 Bxe5 20. Ne4 bxc4 21. dxc4 Be6 22. Rb1 Bxc4 23. b3 Bd4+ 24. Nf2 Bd5 25. Qf4 Re8 26. Kf1 Bc4+ 27. Kg2 Rb7 28. g5 Bd5+ 29. Kh3 Re3+ |
| ECO A10 in 2001 play it! speelman jonatha defeats white's rasmussen casper in 72 moves | 1. c4 b6 2. Nc3 Bb7 3. e4 e6 4. Nge2 d5 5. exd5 exd5 6. Nxd5 Nf6 7. Nec3 Nxd5 8. Nxd5 Bxd5 9. cxd5 Qxd5 10. Be2 Nc6 11. O-O Nd4 12. Re1 O-O-O 13. Ba6+ Kb8 14. d3 Bb4 15. Bc4 Qd7 16. Rf1 b5 17. Bb3 Bc5 18. Be3 Bb6 19. Bxd4 Qxd4 20. Qh5 a6 21. Rad1 Qxb2 22. Bd5 Qd4 23. Bf3 g6 24. Qg5 Rhe8 25. Qh6 f5 26. Qxh7 Qf6 27. Qh6 Rh8 28. Qc1 Rxh2 29. Qc6 Qxc6 30. Bxc6 Rdh8 31. g3 g5 32. Rde1 R2h6 33. Bg2 g4 34. Rb1 f4 35. gxf4 g3 36. Be4 Rh2 |
| ECO A10 in 2007 play it! speelman jonatha defeats white's gomez esteban j in 80 moves | 1. c4 b6 2. Nc3 e6 3. e4 Bb7 4. g3 f5 5. Bg2 Nf6 6. Nge2 Nxe4 7. Nxe4 Bxe4 8. Bxe4 fxe4 9. Nc3 Qf6 10. Qg4 Nc6 11. O-O Be7 12. Qxe4 O-O 13. d3 Bb4 14. Ne2 Bc5 15. Kg2 Rad8 16. Nf4 Rfe8 17. Rb1 d5 18. Qe2 dxc4 19. dxc4 Qf5 20. Be3 Qe4+ 21. Qf3 Qxf3+ 22. Kxf3 Bxe3 23. Kxe3 Ne5 24. Rfc1 Ng4+ 25. Ke2 Nxh2 26. c5 e5 27. Nh5 Rd4 28. cxb6 Red8 29. f3 Rd2+ 30. Ke3 R2d3+ 31. Ke2 e4 32. fxe4 Rd2+ 33. Ke3 R8d3+ 34. Kf4 Rf2+ 35. Kg5 h6+ 36. Kh4 Nf3+ 37. Kh3 Rh2+ 38. Kg4 Ne5+ 39. Kf4 Rxh5 40. Rf1 Rg5 |
| ECO A10 in 1987 play it! speelman jonatha defeats white's mcnab colin a sc in 120 moves | 1. c4 g6 2. Nf3 Bg7 3. g3 e5 4. Nc3 f5 5. d4 e4 6. Bg5 Bf6 7. Bxf6 Nxf6 8. Ng5 h6 9. Nh3 d6 10. e3 g5 11. Ng1 c6 12. Qd2 Na6 13. O-O-O Nc7 14. d5 c5 15. f3 Qe7 16. h4 Rg8 17. hxg5 hxg5 18. Bg2 exf3 19. Bxf3 Bd7 20. Re1 O-O-O 21. e4 Qg7 22. e5 dxe5 23. d6 Be6 24. Qe3 Rxd6 25. Qxc5 Ra6 26. Qxe5 Bxc4 27. Qxf5+ Kb8 28. Qc5 Be6 29. Nge2 Bxa2 30. Nd4 Nd7 31. Qb4 Rb6 32. Qa5 Qxd4 33. Qxa2 Rf8 34. Qa4 Rb4 35. Qd1 Nc5 36. Qxd4 Nb3+ 37. Kb1 Nxd4 38. Be4 a6 39. Ref1 Rxf1+ 40. Rxf1 Ne2 41. Nxe2 Rxe4 42. Rf2 Nb5 43. Kc1 Kc7 44. Kd2 Rb4 45. Kc2 Kd6 46. Nc3 Nxc3 47. Kxc3 Rg4 48. Rf6+ Ke5 49. Rb6 Rxg3+ 50. Kd2 Kf4 51. Rxb7 Rg2+ 52. Ke1 Kg3 53. Kf1 g4 54. Rb6 a5 55. Rb5 a4 56. Rb4 Rf2+ 57. Kg1 Rc2 58. Kf1 Kf3 59. Ke1 g3 60. Kd1 Rh2 |
| ECO A15 in 1980 play it! speelman jonatha defeats white's cummings david h in 54 moves | 1. c4 Nf6 2. Nf3 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 Nbd7 7. Bb2 a5 8. Nc3 Nb6 9. d3 a4 10. Rb1 Re8 11. e4 axb3 12. axb3 Nfd7 13. Qe2 dxc4 14. dxc4 e5 15. Rfd1 Bb4 16. Nb5 c6 17. Nd6 Bxd6 18. Rxd6 Qe7 19. Rbd1 Ra2 20. Qc2 Nc5 21. Qb1 Ra8 22. Bxe5 Bg4 23. Bf4 Ra3 24. Be3 Rxb3 25. Qc2 Nba4 26. R6d4 Rb2 27. Qc1 Nb3 |
