| ECO A40 in 2003 play it! speelman jonatha defeats white's pallesen jacob by checkmate in 98 moves | 1. d4 e6 2. Nf3 Nf6 3. Bg5 h6 4. Bh4 b6 5. Nbd2 Bb7 6. c3 d6 7. Qc2 Nbd7 8. e4 g5 9. Bg3 Nh5 10. Bd3 Bg7 11. O-O-O Qe7 12. Nf1 Nf4 13. Bxf4 gxf4 14. g3 h5 15. Kb1 Bh6 16. N1d2 O-O-O 17. Rhe1 Kb8 18. e5 fxg3 19. exd6 cxd6 20. fxg3 Bxd2 21. Nxd2 h4 22. Be4 d5 23. Bd3 hxg3 24. hxg3 Rdg8 25. Nf1 Nf6 26. Re2 Qc7 27. Rh2 Rh5 28. Rxh5 Nxh5 29. Rd2 Nxg3 30. Rg2 Rg7 31. Qf2 Nh5 32. Rxg7 Nxg7 33. Qf6 Ne8 34. Qh8 Bc6 35. Nd2 Kb7 36. Kc2 f6 37. Qf8 Qg7 38. Qb4 a5 39. Qa3 e5 40. dxe5 fxe5 41. b4 Qf8 42. Nb1 Qf2+ 43. Kd1 e4 44. Be2 Qg1+ 45. Kc2 Qe1 46. Bh5 Bb5 47. Bxe8 Bd3+ 48. Kb3 Qd1+ 49. Kb2 Qxb1# |
| ECO A40 in 1999 play it! speelman jonatha defeats white's milligan helen in 38 moves | 1. d4 e6 2. Nf3 c5 3. e3 Nf6 4. c4 cxd4 5. exd4 b6 6. Nc3 Bb7 7. Bf4 Bb4 8. Bd3 O-O 9. O-O d5 10. Nb5 dxc4 11. Bxc4 a6 12. Nc7 Bxf3 13. Qxf3 Ra7 14. Qb3 Bd6 15. Nxe6 fxe6 16. Bxe6+ Kh8 17. Bxd6 Qxd6 18. d5 Nbd7 19. Rfe1 Nc5 |
| ECO A40 in 1999 play it! speelman jonatha defeats white's cramling pia in 68 moves | 1. d4 e6 2. c4 b6 3. a3 Bb7 4. Nc3 f5 5. d5 Nf6 6. Nh3 Bd6 7. g3 Be5 8. Bd2 Na6 9. Bg2 Nc5 10. O-O O-O 11. Rc1 a5 12. Nf4 a4 13. dxe6 Bxg2 14. Kxg2 dxe6 15. Be3 Qe8 16. Bxc5 bxc5 17. Nd3 Bxc3 18. Rxc3 e5 19. Qc1 f4 20. f3 fxg3 21. hxg3 e4 22. Nf4 Qc6 23. Nd5 Rae8 24. Qg5 Kh8 25. Re3 h6 26. Rh1 Nxd5 27. cxd5 exf3+ 28. exf3 Qb6 29. Rxe8 Qxb2+ 30. Kh3 Rxe8 31. Kg4 Qd4+ 32. f4 Qe4 33. Qh5 Qe2+ 34. Kh4 g5+ |
| ECO A40 in 2001 play it! speelman jonatha defeats white's meessen rudolf in 78 moves | 1. d4 e6 2. e4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. dxc5 Bxc5 10. Bxc5 Nxc5 11. Qf2 Qb6 12. Bd3 Rb8 13. O-O Na4 14. Qxb6 Rxb6 15. Nxa4 bxa4 16. Rab1 Ke7 17. a3 Bd7 18. b4 Rc8 19. Nd2 Nd4 20. c4 dxc4 21. Nxc4 Rbb8 22. Rfd1 Bb5 23. Nd6 Rc3 24. Bxb5 Nxb5 25. Rbc1 Rxc1 26. Rxc1 Nxa3 27. Rc7+ Kd8 28. Rxf7 Nb5 29. Rb7 Rxb7 30. Nxb7+ Kc7 31. Nc5 a3 32. Nb3 a2 33. Kf2 Kc6 34. Ke3 Kd5 35. Kd3 Nd4 36. Na1 h5 37. g3 Nf3 38. h3 g5 39. Nc2 Ne1+ |
| ECO A40 in 2003 play it! speelman jonatha defeats white's hellsten johan in 92 moves | 1. d4 e6 2. c4 b6 3. Nc3 Bb7 4. e3 Nf6 5. Nf3 Be7 6. Bd3 d5 7. cxd5 exd5 8. O-O O-O 9. b3 Nbd7 10. Bb2 a6 11. Rc1 Bd6 12. Ne2 Qe7 13. Ng3 g6 14. Rc2 Rfe8 15. Qa1 Rac8 16. Rfc1 Ng4 17. Nf1 c6 18. h3 Ngf6 19. N1d2 Nh5 20. Nb1 f5 21. Nc3 Nhf6 22. Na4 Rf8 23. Ne5 c5 24. Nxd7 Nxd7 25. Be2 f4 26. exf4 Bxf4 27. Re1 Rce8 28. Bc3 cxd4 29. Bxd4 Bb8 30. Rd1 Ne5 31. Nxb6 Nf3+ 32. Kh1 Qd6 33. g3 Qe6 34. Bxf3 Qxh3+ 35. Kg1 Rxf3 36. Re1 Rxe1+ 37. Qxe1 Bxg3 38. Qe8+ Rf8 39. Qxf8+ Kxf8 40. Bc5+ Kf7 41. fxg3 d4 42. Rf2+ Kg8 43. Rf8+ Kg7 44. Kf2 Qg2+ 45. Ke1 Qxg3+ 46. Kf1 Bg2+ |
| ECO A40 in 2000 play it! speelman jonatha defeats white's van de mortel ja in 90 moves | 1. d4 e6 2. Nf3 c5 3. e3 Nf6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. b3 O-O 8. Bb2 d6 9. c4 Nbd7 10. Nbd2 cxd4 11. exd4 d5 12. Qe2 Rc8 13. Rac1 Rc7 14. Rfe1 Qa8 15. a3 Rfc8 16. Ne5 Nxe5 17. dxe5 Nd7 18. cxd5 Rxc1 19. Rxc1 Rxc1+ 20. Bxc1 Bxd5 21. Bxd5 Qxd5 22. Bb2 Nc5 23. b4 Na4 24. Bc1 Qc6 25. Qc4 Qd7 26. Qe4 h6 27. Qa8+ Kh7 28. Qe4+ g6 29. h4 Kg7 30. Qe3 Bf8 31. Ne4 Qd1+ 32. Kg2 Kh8 33. Nf6 Qd8 34. Qf3 Qc8 35. Bf4 Nc3 36. Bd2 Nb5 37. Ng4 h5 38. Nh6 Bxh6 39. Bxh6 Kh7 40. Bg5 Qd7 41. Kh2 Nd4 42. Qa8 Qc6 43. Qf8 Nf3+ 44. Kh3 Nxg5+ 45. hxg5 Qh1+ |
| ECO A40 in 2007 play it! speelman jonatha defeats white's lorenz gerd in 100 moves | 1. d4 e6 2. Nf3 c5 3. c3 Nf6 4. e3 b6 5. Nbd2 Bb7 6. Bd3 Nc6 7. O-O d5 8. Ne5 Nxe5 9. dxe5 Nd7 10. f4 Qc7 11. Qh5 g6 12. Qh3 O-O-O 13. Nf3 Be7 14. Bd2 Kb8 15. Be1 h6 16. Bh4 Bxh4 17. Qxh4 g5 18. fxg5 Nxe5 19. Nxe5 Qxe5 20. Qf4 Qxf4 21. Rxf4 hxg5 22. Rxf7 e5 23. Raf1 d4 24. cxd4 exd4 25. Re7 dxe3 26. Rxe3 Rd4 27. Rfe1 Rhd8 28. Be4 Bxe4 29. Rxe4 Rxe4 30. Rxe4 Rd2 31. Rg4 Rxb2 32. Rxg5 c4 33. h4 c3 34. Rg8+ Kb7 35. Rg7+ Kc6 36. Rg3 c2 37. Rc3+ Kd5 38. Kh2 Kd4 39. Rc7 Rxa2 40. h5 Ra5 41. Rxc2 Rxh5+ 42. Kg3 a5 43. Ra2 Rh8 44. Kf4 Ra8 45. Rb2 Ra6 46. g4 a4 47. g5 a3 48. Rb1 a2 49. Ra1 Kc3 50. g6 Kb2 |
| ECO A40 in 1993 play it! speelman jonatha defeats white's polgar zsuzsa in 36 moves | 1. d4 e6 2. c4 Bb4+ 3. Nc3 b6 4. e4 Bb7 5. d5 Qe7 6. Be2 Nf6 7. f3 exd5 8. cxd5 c6 9. dxc6 Nxc6 10. Nh3 d5 11. exd5 O-O-O 12. Bg5 Rhe8 13. Bxf6 gxf6 14. Nf4 Qe5 15. Qd2 Bxc3 16. bxc3 Nb4 17. Kf2 Nxd5 18. Nd3 Nxc3 |
| ECO A40 in 1998 play it! speelman jonatha defeats white's van parreren han in 82 moves | 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Nc3 Bb4 5. Bd3 f5 6. Qc2 Nf6 7. d5 fxe4 8. Bxe4 exd5 9. Bf3 Nc6 10. cxd5 Nd4 11. Qd3 Qe7+ 12. Be3 Nxf3+ 13. Nxf3 Bxc3+ 14. bxc3 Bxd5 15. O-O Bxf3 16. gxf3 O-O 17. Rfe1 Qf7 18. Bd4 Nd5 19. Be5 d6 20. Rad1 Nf4 21. Bxf4 Qxf4 22. Qd5+ Qf7 23. Re3 Rae8 24. Kg2 g6 25. Rd4 Qxd5 26. Rxd5 Rxe3 27. fxe3 Rf5 28. Rd4 Rc5 29. c4 Ra5 30. Rd2 Kf7 31. Kf2 Ra3 32. Rc2 Kf6 33. Ke2 Kg5 34. Kf2 Kh4 35. f4 Kg4 36. Ke2 h6 37. Kf2 g5 38. fxg5 hxg5 39. Ke2 Kf5 40. Kf2 g4 41. Rd2 Kg5 |
| ECO A40 in 1994 play it! speelman jonatha defeats white's morovic fernande in 70 moves | 1. d4 e6 2. c4 b6 3. a3 Bb7 4. Nc3 Nf6 5. d5 exd5 6. cxd5 b5 7. Qd4 a6 8. Bf4 Be7 9. e4 d6 10. a4 c5 11. Qd3 b4 12. Nce2 O-O 13. Ng3 Re8 14. Be2 Bf8 15. Nf3 a5 16. Nd2 Nbd7 17. Nc4 Nb6 18. Nxb6 Qxb6 19. f3 Ba6 20. Qb3 Bxe2 21. Nxe2 Qa6 22. Qc2 c4 23. O-O c3 24. bxc3 Nxd5 25. cxb4 Nxb4 26. Qd2 d5 27. Nc3 dxe4 28. Nxe4 Rad8 29. Qb2 Nd3 30. Qc3 f5 31. Ng5 Rd4 32. Bd2 h6 33. Nh3 Bd6 34. f4 Bf8 35. Qc7 Rde4 |
| ECO A40 in 1997 play it! speelman jonatha defeats white's moynihan kieran in 84 moves | 1. d4 e6 2. c4 b6 3. Nf3 Bb7 4. a3 f5 5. Nc3 Nf6 6. d5 Be7 7. dxe6 dxe6 8. Qa4+ Qd7 9. Qxd7+ Nbxd7 10. Bf4 Bd6 11. Bxd6 cxd6 12. Rd1 Ke7 13. e3 a6 14. Be2 Rhc8 15. O-O Bxf3 16. Bxf3 Ra7 17. Be2 Ne5 18. Rd4 Nc6 19. Rd2 Na5 20. Rfd1 Nxc4 21. Bxc4 Rxc4 22. Rxd6 Rd7 23. Rxd7+ Nxd7 24. Rd4 Rxd4 25. exd4 Kd6 26. Kf1 e5 27. dxe5+ Nxe5 28. Ke2 Nc4 29. Nd1 Kd5 30. Kd3 b5 31. Kc3 a5 32. Kd3 g5 33. Nc3+ Kc5 34. Nd1 h5 35. Kc3 Kd5 36. Kd3 Ne5+ 37. Kc3 f4 38. b3 g4 39. Kc2 b4 40. axb4 axb4 41. Kd2 Kd4 42. h3 f3 |
| ECO A40 in 1995 play it! speelman jonatha defeats white's bareev evgeny in 64 moves | 1. d4 e6 2. e4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. O-O O-O 7. Bg5 h6 8. Bh4 Re8 9. Re1 Nbd7 10. Nbd2 c6 11. c3 Rxe1+ 12. Qxe1 Nf8 13. Ne5 g5 14. Bg3 Nh5 15. Qe2 Ng7 16. Nf1 h5 17. h3 Be6 18. Re1 Qc7 19. h4 f6 20. Nf3 g4 21. N3d2 Re8 22. Qd1 f5 23. Bxd6 Qxd6 24. g3 f4 25. Re5 fxg3 26. Nxg3 Bf7 27. f4 Qf6 28. Ndf1 Qxf4 29. Rxe8 Nxe8 30. Qe2 Bg6 31. Kg2 Qf6 32. Ne3 Ne6 |
| ECO A40 in 2002 play it! speelman jonatha defeats white's toloza pablo in 76 moves | 1. d4 e6 2. c4 b6 3. Nf3 Bb7 4. g3 Bb4+ 5. Bd2 Bxf3 6. exf3 Bxd2+ 7. Qxd2 Nf6 8. Nc3 O-O 9. O-O-O d5 10. Kb1 Nc6 11. f4 Ne7 12. Bg2 c6 13. Qd3 dxc4 14. Qxc4 Rc8 15. Rhe1 Qd7 16. Bf3 Ned5 17. Ne4 Nxe4 18. Bxe4 Rfd8 19. a3 g6 20. Rd3 Nf6 21. Bf3 c5 22. Red1 b5 23. Qc2 c4 24. Re3 Qc7 25. Re5 Qb6 26. d5 exd5 27. Bxd5 a5 28. f5 Nxd5 29. Rexd5 Rxd5 30. Rxd5 b4 31. fxg6 hxg6 32. axb4 axb4 33. Qd2 c3 34. Qd4 Qc7 35. Qxb4 cxb2 36. Qxb2 Qc4 37. Ra5 Qe4+ 38. Ka1 Qe1+ |
| ECO A40 in 1998 play it! speelman jonatha defeats white's piket jeroen in 56 moves | 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Nc3 Bb4 5. f3 f5 6. exf5 Qh4+ 7. g3 Qf6 8. fxe6 Ne7 9. Bh3 h5 10. Bf4 dxe6 11. Qd2 Nbc6 12. O-O-O Bxc3 13. Qxc3 g5 14. Be3 g4 15. fxg4 hxg4 16. Bxg4 Nb4 17. Qxb4 Bxh1 18. Nh3 Qg6 19. Bg5 c5 20. dxc5 Rxh3 21. Qd2 Rh7 22. Rxh1 Qe4 23. Rd1 Qxg4 24. Qd7+ Kf8 25. Bf4 Rxh2 26. c6 Qe2 27. Bd2 Qxc4+ 28. Kb1 Qe4+ |
| ECO A40 in 2007 play it! speelman jonatha defeats white's joyce j in 44 moves | 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 Bb4+ 5. Kf1 Nc6 6. Nf3 Be7 7. a3 d6 8. d5 Ne5 9. Nxe5 dxe5 10. Be3 Nf6 11. Nc3 O-O 12. dxe6 fxe6 13. Bc2 Qe8 14. Kg1 Rd8 15. Qe1 Ng4 16. h4 Rd7 17. Rd1 Qd8 18. Rxd7 Qxd7 19. Qd1 Qxd1+ 20. Nxd1 Rd8 21. Kf1 Bxe4 22. Bb3 Rd3 |
| ECO A40 in 2006 play it! speelman jonatha defeats white's berry neil in 54 moves | 1. d4 e6 2. c4 b6 3. e4 Bb7 4. Qc2 Bb4+ 5. Nd2 c5 6. d5 Qe7 7. Be2 exd5 8. exd5 Nf6 9. Nf3 O-O 10. a3 Re8 11. O-O Qxe2 12. axb4 Na6 13. b5 Nb4 14. Qd1 Qxd1 15. Rxd1 a6 16. bxa6 Rxa6 17. Rxa6 Bxa6 18. b3 Nfxd5 19. cxd5 Be2 20. Re1 Nd3 21. Nf1 Nxe1 22. Nxe1 Bd1 23. Ne3 Bxb3 24. Bb2 Bxd5 25. Nd3 Be6 26. Be5 d5 27. Bc7 d4 |
| ECO A40 in 2000 play it! speelman jonatha defeats white's comas fabrego lu in 62 moves | 1. d4 e6 2. Nf3 c5 3. e4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6 6. Nb3 Bb4 7. Bd3 d5 8. e5 Nfd7 9. Be3 Qc6 10. f4 Bxc3+ 11. bxc3 Qxc3+ 12. Bd2 Qc7 13. Qg4 O-O 14. Bb4 f5 15. Qf3 Rf7 16. g4 Nc6 17. Bd6 Ndxe5 18. fxe5 Nxe5 19. Bxe5 Qxe5+ 20. Kd1 Qd6 21. gxf5 e5 22. Qg3 Bxf5 23. Bxf5 Rxf5 24. Rg1 Qf6 25. Nd2 Rf8 26. Rb1 b6 27. c4 dxc4 28. Ne4 Qf7 29. Kc2 g6 30. Rbe1 Qd5 31. Re3 c3 |
| ECO A40 in 2000 play it! speelman jonatha defeats white's krush irina in 82 moves | 1. d4 e6 2. c4 b6 3. a3 Nf6 4. d5 Ba6 5. b3 Bd6 6. Nf3 O-O 7. Nc3 Qe7 8. e3 c6 9. Bd3 Bb7 10. O-O cxd5 11. cxd5 Nxd5 12. Nxd5 exd5 13. Bb2 Nc6 14. Qc2 g6 15. Rfe1 Ne5 16. Nxe5 Bxe5 17. Bxe5 Qxe5 18. Rad1 Rac8 19. Qb1 d4 20. exd4 Qa5 21. a4 Qb4 22. Bb5 Rc3 23. Re3 Rxe3 24. fxe3 a6 25. Bc4 Re8 26. Re1 Be4 27. Qd1 b5 28. axb5 axb5 29. Bf1 Ra8 30. Qe2 d5 31. Rc1 Qxb3 32. Qf2 Ra3 33. Rc8+ Kg7 34. Rc7 Bf5 35. Rb7 Qxe3 36. Qxe3 Rxe3 37. Rxb5 Re1 38. Rb3 Rd1 39. Kf2 Rxd4 40. Rb6 Rd2+ 41. Ke3 Ra2 |
| ECO A40 in 2002 play it! speelman jonatha defeats white's sokolov ivan in 58 moves | 1. d4 e6 2. c4 b6 3. Nf3 Bb7 4. Nc3 Bb4 5. Bg5 Ne7 6. Qb3 c5 7. O-O-O Bxf3 8. gxf3 Bxc3 9. Qxc3 cxd4 10. Qxd4 f6 11. Bf4 Nbc6 12. Qd6 Ng6 13. Bg3 Rc8 14. Bh3 Qe7 15. Kb1 h5 16. Qxe7+ Ncxe7 17. b3 Nf5 18. Bxf5 exf5 19. Bd6 Kf7 20. Rd2 Rhe8 21. Rhd1 Re6 22. Ba3 Kg8 23. e3 f4 24. exf4 Nh4 25. Rxd7 a5 26. Rg1 g6 27. f5 Nxf5 28. Rxg6+ Kh8 29. Rh6+ Nxh6 |
| ECO A40 in 1990 play it! speelman jonatha defeats white's suba mihail in 126 moves | 1. d4 e6 2. c4 Bb4+ 3. Nc3 f5 4. Bd2 Nf6 5. e3 O-O 6. Bd3 d6 7. Qc2 Nc6 8. Nge2 Qd7 9. f3 e5 10. O-O Qf7 11. a3 Bxc3 12. Bxc3 Bd7 13. c5 Nd5 14. Bd2 exd4 15. Nxd4 Nxd4 16. exd4 Qf6 17. Kh1 Kh8 18. Rad1 Be6 19. Rfe1 Bg8 20. cxd6 cxd6 21. Qa4 a6 22. Bb1 b5 23. Qa5 Qh4 24. Bc1 g5 25. Re2 Rf6 26. Qe1 Qh5 27. Kg1 Raf8 28. Bxf5 Rxf5 29. g4 Qh3 30. gxf5 Qxf3 31. Rf2 Qh3 32. Qf1 Qh5 33. Rd3 Nf4 34. Bxf4 gxf4 35. Qh3 Qg5+ 36. Qg2 Qxf5 37. Qh3 Qg6+ 38. Rg3 Qb1+ 39. Qf1 Qe4 40. Rgf3 Bd5 41. h3 Qxd4 42. Qd3 Rg8+ 43. Kh2 Qg7 44. Qc3 Bxf3 45. Rxf3 Qxc3 46. Rxc3 Kg7 47. Rd3 Kf7 48. Rxd6 f3 49. Rd3 Rg2+ 50. Kh1 Rxb2 51. Rxf3+ Ke6 52. Kg1 a5 53. Kf1 a4 54. Ke1 Kd5 55. Kd1 Rb3 56. Rxb3 axb3 57. Kc1 Kd4 58. Kb2 Kc4 59. h4 h5 60. Kb1 Kc3 61. Kc1 b2+ 62. Kb1 Kb3 63. a4 Kxa4 |