| ECO A13 in 1998 play it! speelman jonatha defeats black's sveshnikov evgen in 81 moves | 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. Be2 O-O 8. O-O Re8 9. Rd1 Qe7 10. h3 h6 11. b3 dxc4 12. bxc4 e5 13. a4 exd4 14. exd4 Nf8 15. a5 Ng6 16. Bd3 Nf4 17. c5 Bc7 18. Bxf4 Bxf4 19. a6 b5 20. cxb6 axb6 21. Ne2 Qc7 22. Nxf4 Qxf4 23. Ne5 c5 24. g3 Qg5 25. h4 Qh5 26. Be2 Qf5 27. Qxf5 Bxf5 28. Bb5 Re6 29. Bc6 Ra7 30. dxc5 bxc5 31. Rd8+ Kh7 32. f4 Be4 33. Bb5 Rb6 34. Bc4 Rb2 35. Bxf7 Rg2+ 36. Kf1 Rxg3 37. h5 Nxh5 38. Bg8+ Kh8 39. Bd5+ Kh7 40. Bxe4+ g6 41. Rd7+ |
| ECO A10 in 1986 play it! speelman jonatha defeats black's teichmann erik in 37 moves | 1. c4 Nc6 2. g3 g6 3. d4 Bg7 4. Nf3 d6 5. d5 Na5 6. Qa4+ c6 7. Bd2 Qb6 8. Na3 Qxb2 9. Rb1 Qxa2 10. Bxa5 Bb2 11. dxc6 b6 12. Bb4 Bxa3 13. Nd2 Bf5 14. Rc1 Nf6 15. Qxa3 Qxa3 16. Bxa3 O-O 17. Bg2 Rac8 18. e4 Be6 19. e5 |
| ECO A11 in 1982 play it! speelman jonatha defeats black's knox vic w in 67 moves | 1. c4 c6 2. e4 e5 3. Nf3 d6 4. d4 Nd7 5. Nc3 g6 6. Be2 Bg7 7. d5 c5 8. Be3 Ngf6 9. Nd2 h5 10. a3 a6 11. b4 b6 12. h3 Bh6 13. Bxh6 Rxh6 14. Nf1 Kf8 15. Ne3 Kg7 16. h4 Nf8 17. g3 Qe8 18. bxc5 bxc5 19. Rb1 N8h7 20. Kf1 Ng8 21. Qa4 Qd8 22. Qc6 g5 23. Qxa8 Bh3+ 24. Rxh3 Qxa8 25. Nf5+ Kg6 26. Rb6 Nhf6 27. Kg2 gxh4 28. Nxh6 Nxh6 29. Rxh4 Nhg4 30. Bxg4 hxg4 31. Rxd6 Qb8 32. Rxg4+ Kh5 33. Rxf6 Kxg4 34. Rf5 |
| ECO A13 in 2005 play it! speelman jonatha defeats black's nezad husein azi in 69 moves | 1. c4 e6 2. Nf3 d5 3. d4 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nbd2 b6 7. cxd5 Nxd5 8. Bxe7 Qxe7 9. Rc1 Bb7 10. e4 Nf6 11. Bd3 Rc8 12. O-O Nbd7 13. e5 Nd5 14. Nc4 Rd8 15. Re1 Nb4 16. Bb1 c5 17. a3 Bxf3 18. Qxf3 Nd5 19. dxc5 Nxc5 20. b4 Nb7 21. Be4 Rd7 22. Ne3 Nxe3 23. Qxe3 Rb8 24. g3 g6 25. h4 h5 26. Rc2 Rc7 27. Rxc7 Qxc7 28. Qg5 Nd8 29. Rd1 Kf8 30. Qf6 Ke8 31. b5 Rc8 32. a4 Rb8 33. Qh8+ Ke7 34. Qg7 Qc4 35. Qf6+ |
| ECO A01 in 1992 play it! speelman jonatha defeats black's defirmian nick e in 55 moves | 1. b3 c5 2. Bb2 Nc6 3. e3 d6 4. Nf3 e5 5. d4 cxd4 6. exd4 e4 7. Nfd2 d5 8. Be2 f5 9. c4 Nf6 10. Nc3 Be6 11. O-O Nxd4 12. Nxd5 Nxe2+ 13. Qxe2 Nxd5 14. cxd5 Qxd5 15. Rfd1 Qd3 16. Qh5+ g6 17. Qh4 Be7 18. Bf6 g5 19. Bxg5 Rg8 20. Qh5+ Rg6 21. Bxe7 Kxe7 22. Nc4 Qf3 23. Qxh7+ Bf7 24. Rd7+ Kxd7 25. Qxf7+ Kc8 26. Qxg6 Qd3 27. Qe8+ Kc7 28. Qxa8 |
| ECO B41 in 1979 play it! speelman jonatha defeats black's gruchacz robert in 91 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be3 Nc6 7. Qe2 e5 8. Nb3 a5 9. Nd5 Nxd5 10. exd5 Ne7 11. Qb5+ Bd7 12. Bb6 Bxb5 13. Bxb5+ Qd7 14. Bxd7+ Kxd7 15. Bxa5 Nxd5 16. O-O-O Nf4 17. g3 Ne6 18. Kb1 Be7 19. Rd5 Kc6 20. c4 b6 21. Bb4 Nc7 22. Rd2 Rhe8 23. Rhd1 Rad8 24. Na1 d5 25. cxd5+ Nxd5 26. Bxe7 Rxe7 27. Nc2 Red7 28. Kc1 Kb7 29. Nb4 Nf6 30. Rxd7+ Nxd7 31. Rd5 Rc8+ 32. Kd2 Rc7 33. f3 f6 34. Rd6 Nc5 35. Ke3 Rf7 36. Nd5 Rd7 37. Rxb6+ Ka7 38. b4 Rxd5 39. bxc5 Rxc5 40. Re6 Rc7 41. h4 Rd7 42. h5 h6 43. a4 Kb7 44. a5 Ka7 45. g4 Kb7 46. a6+ |
| ECO B70 in 1980 play it! speelman jonatha defeats black's sosonko gennadi in 103 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3 Nc6 7. Nde2 Bg4 8. Bg2 Bxe2 9. Qxe2 Bg7 10. O-O O-O 11. Nd5 Rc8 12. c3 Nxd5 13. exd5 Ne5 14. Bd2 Nc4 15. Be1 a6 16. b3 Ne5 17. Bd2 Nd7 18. Rac1 Re8 19. c4 a5 20. Bh3 Ra8 21. Rfe1 Nc5 22. Bc3 Qb6 23. Bxg7 Kxg7 24. Qb2+ Kg8 25. Re3 e5 26. dxe6 fxe6 27. Qf6 Qd8 28. Bxe6+ Nxe6 29. Rxe6 Qxf6 30. Rxf6 Re2 31. Rd1 Rxa2 32. Rdxd6 a4 33. bxa4 R8xa4 34. Rf4 b5 35. Rd8+ Kg7 36. Rd7+ Kh6 37. Rh4+ Kg5 38. Rd5+ Kf6 39. Rxb5 Rc2 40. Rf4+ Ke6 41. Rb6+ Ke5 42. Rb7 Raxc4 43. Re7+ Kd6 44. Rxc4 Rxc4 45. Rxh7 Ke6 46. Rh4 Rc2 47. Rf4 g5 48. Rf8 Rc6 49. Kg2 Ke7 50. Ra8 Kf6 51. Ra4 Rc8 52. h4 |
| ECO B81 in 1981 play it! speelman jonatha defeats black's christiansen lar in 83 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. h4 Be7 8. Rh3 h5 9. g5 Ng4 10. f3 Ne5 11. Be3 Nbc6 12. Qe2 O-O 13. O-O-O g6 14. Kb1 Re8 15. Nb3 Bd7 16. Bg1 a5 17. f4 Ng4 18. e5 d5 19. Nc5 Nb4 20. Nxd7 Qxd7 21. Qb5 Qxb5 22. Bxb5 Rec8 23. a3 Na6 24. Na4 Rab8 25. Rd2 Nc7 26. Rb3 Nxb5 27. Rxb5 Bd8 28. Ba7 Ra8 29. Bd4 Rab8 30. Ba7 Ra8 31. Nb6 Bxb6 32. Bxb6 Rc4 33. Rd4 Ne3 34. Rxc4 Nxc4 35. Bd4 b6 36. a4 Rc8 37. Kc1 Kf8 38. c3 Ke7 39. b3 Ne3 40. Bxe3 Rxc3+ 41. Kd2 d4 42. Bxd4 |
| ECO B29 in 1978 play it! speelman jonatha defeats black's feller j in 51 moves | 1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. Bb5+ Bd7 5. e5 d4 6. exf6 dxc3 7. fxg7 cxd2+ 8. Qxd2 Bxg7 9. Bc4 e6 10. O-O Bc6 11. Qe2 Nd7 12. Rd1 Qc7 13. Bxe6 fxe6 14. Qxe6+ Kf8 15. Ng5 Ne5 16. Be3 Qe7 17. f4 Nd7 18. f5 Re8 19. Re1 h6 20. Qxe7+ Rxe7 21. Ne6+ Kf7 22. Nxg7 Kxg7 23. Bd4+ cxd4 24. Rxe7+ Kf6 25. Rae1 Rg8 26. R1e6+ |
| ECO B92 in 1980 play it! speelman jonatha defeats black's ardiansyah h ina in 75 moves | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O Be6 9. f4 Qc7 10. a4 Nbd7 11. Kh1 Rc8 12. f5 Bc4 13. Bxc4 Qxc4 14. a5 O-O 15. Ra4 Qc6 16. Qf3 Ra8 17. Be3 Bd8 18. Rfa1 Re8 19. Nd2 b5 20. axb6 Bxb6 21. Rxa6 Bxe3 22. Rxc6 Rxa1+ 23. Nf1 Bc5 24. g3 Nb8 25. Rc7 Na6 26. Rb7 Nb4 27. Qe2 Nxc2 28. Kg2 Ne1+ 29. Kh3 h5 30. Nd1 Ng4 31. Nfe3 Nxe3 32. Nxe3 Bxe3 33. Qxe3 d5 34. exd5 e4 35. d6 Nf3 36. Re7 Rxe7 37. dxe7 Ra8 38. Qb6 |
| ECO B32 in 1977 play it! speelman jonatha defeats black's tisdall jonathan in 49 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. g3 a6 7. Bg2 d6 8. O-O Bd7 9. Re1 Be7 10. Nxc6 bxc6 11. b3 Rd8 12. Bb2 Bf6 13. Qe2 Qa5 14. Na4 c5 15. e5 dxe5 16. Bc3 Qc7 17. Qxa6 Rb8 18. Ba5 Qc8 19. Qxc8+ Rxc8 20. Nb6 Rb8 21. Nxd7 Kxd7 22. Rad1+ Kc8 23. Rd6 Rb5 24. Rc6+ Kb8 25. Bc7+ |
| ECO B23 in 1973 play it! speelman jonatha defeats black's ammann philipp in 43 moves | 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. d4 cxd4 5. Nxd4 a6 6. g3 Nf6 7. Bg2 Be7 8. O-O d6 9. Nxc6 bxc6 10. e5 Nd5 11. exd6 Qxd6 12. Ne4 Qc7 13. c4 Nf6 14. Bg5 Bb7 15. Nxf6+ gxf6 16. Be3 h5 17. h4 c5 18. Qa4+ Kf8 19. Bxb7 Qxb7 20. Rfd1 Ra7 21. b4 Qc7 22. bxc5 |
| ECO B33 in 1980 play it! speelman jonatha defeats black's rakic tomislav in 71 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 h5 7. Bg5 Bg4 8. f3 Bd7 9. Qd2 Nxd4 10. Qxd4 Qa5 11. Bd2 e5 12. Qd3 Qc5 13. O-O-O a6 14. Kb1 Be6 15. Be3 Qc7 16. f4 Rc8 17. Nd5 Qc6 18. Bg2 Nd7 19. Rd2 h4 20. Re1 hxg3 21. hxg3 Rh2 22. Bg1 Rh8 23. Rc1 b5 24. Qa3 Bxd5 25. exd5 Qb7 26. Re1 f6 27. Be4 Nc5 28. Bf5 Rc7 29. Bxc5 Rxc5 30. Be6 b4 31. Qd3 Kd8 32. fxe5 fxe5 33. Rf2 Qb5 34. Qg6 Qc4 35. Rc1 Qd4 36. Rxf8+ |
| ECO B53 in 1990 play it! speelman jonatha defeats black's sher miron n rus in 73 moves | 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O h6 9. Bf4 Bd7 10. Bg3 Be7 11. Kb1 O-O 12. f4 Nxd4 13. Qxd4 Bc6 14. Qe3 b5 15. Bd3 Qc7 16. e5 dxe5 17. fxe5 Nd5 18. Nxd5 Bxd5 19. Bf4 Qa5 20. b3 f5 21. exf6 Bxf6 22. Be5 Rac8 23. Rhf1 Qd8 24. Bxf6 Rxf6 25. Rxf6 Qxf6 26. Qb6 Ra8 27. Rf1 Qd8 28. Qf2 Qe8 29. h4 Rb8 30. Qf4 Rd8 31. g4 Rd7 32. g5 hxg5 33. hxg5 e5 34. Qh4 e4 35. Rh1 Qg6 36. Be2 Kf8 37. Qf4+ |
| ECO B31 in 2000 play it! speelman jonatha defeats black's david alberto in 71 moves | 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. Nbd2 Nf6 9. Nc4 Nd7 10. Bd2 O-O 11. a3 Rd8 12. b4 b6 13. Qc1 Ba6 14. Ne3 f6 15. Qb1 Bf8 16. h3 Qf7 17. a4 cxb4 18. Bxb4 Nc5 19. Rd1 Rab8 20. Ba3 Bc8 21. a5 b5 22. Bb4 Be6 23. Ra3 Na4 24. Bxf8 Qxf8 25. Qa1 Qb4 26. Rb1 Qd6 27. Rd1 Qb4 28. d4 Qb2 29. dxe5 Rxd1+ 30. Nxd1 Qxc2 31. Nd4 Qd2 32. Nxe6 Re8 33. Nd4 Rd8 34. Nxc6 Qe1+ 35. Kh2 Rxd1 36. Qa2+ |
| ECO B20 in 1981 play it! speelman jonatha defeats black's sunye neto jaime in 64 moves | 1. e4 c5 2. g3 d5 3. exd5 Qxd5 4. Nf3 Bg4 5. Bg2 Qe6+ 6. Kf1 Nc6 7. h3 Bh5 8. Nc3 Nf6 9. d3 Qd7 10. g4 Bg6 11. Bf4 e6 12. g5 Ng8 13. Qe1 Nge7 14. h4 Bh5 15. Ne5 Nxe5 16. Bxe5 Nc6 17. a4 Rc8 18. Nb5 Nd4 19. Nxd4 cxd4 20. Qd2 Bg6 21. h5 Bf5 22. Rh4 f6 23. gxf6 gxf6 24. Bxf6 Rg8 25. Rxd4 Qf7 26. Qc3 Qxf6 27. Qxc8+ Kf7 28. Rd7+ Be7 29. Qxb7 Rg7 30. Rxe7+ Qxe7 31. Qxe7+ Kxe7 32. Bf3 Rf7 |
| ECO B42 in 1979 play it! speelman jonatha defeats black's blackstock lesly in 119 moves | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. Qe2 Nc6 8. Be3 Bxe3 9. Qxe3 Nge7 10. Nc3 d6 11. O-O e5 12. Bc4 O-O 13. Rad1 Qc7 14. Qd2 b5 15. Nd5 Nxd5 16. Bxd5 Bb7 17. Rfe1 Rad8 18. Rc1 Ne7 19. c4 Qb6 20. Qa5 Qxa5 21. Nxa5 Bxd5 22. cxd5 Rc8 23. f3 Rxc1 24. Rxc1 Rc8 25. Rxc8+ Nxc8 26. Nc6 Kf8 27. Nb8 a5 28. Nc6 a4 29. Kf2 Nb6 30. Ke2 f5 31. Kd3 fxe4+ 32. fxe4 Nc4 33. b3 axb3 34. axb3 Nb6 35. Kc3 Nd7 36. b4 Nf6 37. Kd3 Ne8 38. Na7 Nc7 39. Nc8 Ne8 40. Ke3 h5 41. g4 g6 42. gxh5 gxh5 43. Kf3 Kf7 44. Kg3 Nf6 45. Nxd6+ Ke7 46. Nf5+ Kd7 47. Kf3 Kc7 48. Nh6 Kc8 49. Nf7 Nd7 50. Nd6+ Kc7 51. Nxb5+ Kb6 52. Nc3 Nf6 53. Kg3 Ng4 54. h3 Ne3 55. Kh4 Nc2 56. b5 Kc5 57. Kxh5 Ne3 58. Kg6 Nc4 59. h4 Kd4 60. h5 |
| ECO B33 in 1989 play it! speelman jonatha defeats black's gulko boris f us in 53 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Qb6 7. Nb3 e6 8. Bf4 Ne5 9. Be3 Qc7 10. f4 Nc6 11. g4 d5 12. e5 Nd7 13. Nb5 Qd8 14. h4 f6 15. Nd6+ Bxd6 16. exd6 Nb6 17. g5 O-O 18. Qd2 Na4 19. O-O-O a6 20. g6 Qxd6 21. gxh7+ Kh8 22. h5 Bd7 23. Bd3 d4 24. h6 gxh6 25. Qg2 Nb4 26. Rdg1 Nxd3+ 27. Kb1 |
| ECO B51 in 2000 play it! speelman jonatha defeats black's halldorsson gudm in 41 moves | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bxd7+ Bxd7 6. d4 cxd4 7. Qxd4 e5 8. Qd3 h5 9. c4 Rc8 10. Nc3 Be7 11. Nd5 Nf6 12. Nxe7 Qxe7 13. Bg5 Qe6 14. b3 Nh7 15. Be3 Qg6 16. Kh1 Rc6 17. Rad1 Nf8 18. a4 Ne6 19. Nxe5 dxe5 20. Qxd7+ Kf8 21. Qxb7 |
| ECO B32 in 1980 play it! speelman jonatha defeats black's bielczyk j in 37 moves | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 d5 10. Nxd5 Qxe4+ 11. Be3 Nd4 12. Nc7+ Ke7 13. Qd3 Nxc2+ 14. Kd2 Bf5 15. Bc5+ Kf6 16. Qd6+ Be6 17. Bd3 Qxg2 18. Nxa8 e4 19. Bxc2 |