| ECO A04 in 2007 play it! van der weide ka defeats black's vedder richard in 99 moves | 1. Nf3 d6 2. g3 g6 3. Bg2 Bg7 4. O-O Nc6 5. c4 e5 6. Nc3 f5 7. d3 Nf6 8. Rb1 a5 9. a3 O-O 10. b4 axb4 11. axb4 h6 12. b5 Ne7 13. Qb3 Kh8 14. Bb2 g5 15. Ra1 Rxa1 16. Rxa1 Be6 17. Nd2 b6 18. Ra7 Qd7 19. Qa3 Rb8 20. Na2 Nc8 21. Ra8 Rxa8 22. Qxa8 Kh7 23. Nb4 Ne7 24. Na6 Ne8 25. Ba3 Bf6 26. Nf1 e4 27. Ne3 Bd4 28. Nc2 Bf6 29. Ncb4 d5 30. Nb8 Qc8 31. cxd5 Bd7 32. N4c6 Bxc6 33. bxc6 Nxd5 34. dxe4 Nc3 35. exf5 Nxe2+ 36. Kf1 Nc3 37. Bb2 Qxf5 38. Bxc3 Bxc3 39. Qa2 Nd6 40. Nd7 b5 41. Kg1 b4 42. Bd5 Bd4 43. Qd2 Bc3 44. Qd1 Ne4 45. Nf8+ Kh8 46. Bxe4 Qxe4 47. Qd8 Qxc6 48. Ne6+ Kh7 49. Qe7+ Kg6 50. g4 |
| ECO A07 in 2001 play it! van der weide ka defeats black's span paul in 115 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bf5 5. d3 e6 6. Nbd2 Be7 7. Qe1 Bg6 8. e4 dxe4 9. dxe4 Nbd7 10. a3 e5 11. b3 Qc7 12. Bb2 b5 13. Nh4 Ng4 14. Nf5 Bxf5 15. exf5 O-O 16. Ne4 Ngf6 17. Nxf6+ Bxf6 18. Qe4 Rac8 19. Rad1 Rfe8 20. h4 Nb6 21. Rfe1 c5 22. Qb7 h6 23. Qxc7 Rxc7 24. f4 Nd7 25. Rxd7 Rxd7 26. Bc6 Red8 27. Bxd7 Rxd7 28. fxe5 Be7 29. f6 Bf8 30. Kf2 c4 31. Ke2 gxf6 32. exf6 Rd6 33. Rd1 Rxd1 34. Kxd1 h5 35. Ke2 Kh7 36. Kf3 Kg6 37. g4 hxg4+ 38. Kxg4 cxb3 39. cxb3 a5 40. a4 bxa4 41. bxa4 Bb4 42. h5+ Kh7 43. Bc1 Bc3 44. Kf5 Be1 45. Bg5 Bc3 46. Ke4 Be1 47. Kd5 Bc3 48. Kc6 Be1 49. Kb5 Bc3 50. Bf4 Bxf6 51. Kxa5 Bd4 52. Kb5 Kg7 53. a5 Kf6 54. a6 Ba7 55. Kc6 Kf5 56. Bc7 Kg5 57. Bb6 Bb8 58. Kb7 |
| ECO A04 in 1996 play it! van der weide ka defeats black's van wissen michi in 81 moves | 1. Nf3 g6 2. g3 Bg7 3. Bg2 c5 4. O-O Nc6 5. d3 d6 6. e4 e6 7. c3 Nge7 8. d4 cxd4 9. cxd4 d5 10. e5 Nf5 11. Nc3 O-O 12. Re1 Bd7 13. Bf4 h6 14. h4 Rc8 15. Qd2 Kh7 16. Rac1 Qb6 17. Red1 Qd8 18. b3 Qe7 19. Ne2 Qb4 20. Qb2 Qe7 21. Qb1 Rc7 22. h5 Rfc8 23. g4 Nh4 24. Nxh4 Qxh4 25. Bf3 Nb4 26. Rxc7 Rxc7 27. Kg2 Bb5 28. Rh1 Bd3 29. hxg6+ fxg6 30. Qd1 Qe7 31. a3 Bc2 32. Qd2 Na6 33. Bxh6 Kg8 34. Bxg7 Qxg7 35. Qg5 Re7 36. Nf4 Nc7 37. Rh6 Kf7 38. b4 b5 39. Rh1 Bb3 40. Be2 Bc4 41. Bd1 |
| ECO A05 in 1993 play it! van der weide ka defeats black's boersma paul in 59 moves | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 b6 7. cxd5 exd5 8. Bb2 Bb7 9. d4 Nbd7 10. Nc3 Re8 11. Rc1 a6 12. Qc2 Bd6 13. e3 Qe7 14. Ne2 Rac8 15. Nf4 c5 16. dxc5 bxc5 17. Qf5 Qe4 18. Qh3 Bxf4 19. gxf4 Qg6 20. Nh4 Qh6 21. Nf5 Qxh3 22. Bxh3 Rc6 23. Nxg7 Rd8 24. Nf5 Rb6 25. Rfd1 d4 26. exd4 Nd5 27. dxc5 Rg6+ 28. Kf1 Kf8 29. Ba3 Bc6 30. Rxd5 |
| ECO A05 in 1993 play it! van der weide ka defeats black's bezemer arno in 83 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 e5 7. O-O exd4 8. Nxd4 Re8 9. f3 c6 10. Kh1 Na6 11. Rb1 d5 12. cxd5 cxd5 13. Bb5 Bd7 14. Bxa6 bxa6 15. exd5 Qb6 16. Bg5 Qd6 17. Qd2 Nxd5 18. Nde2 h6 19. Ne4 Qe5 20. Bxh6 Bxh6 21. Qxh6 Bb5 22. Rfd1 Nb4 23. Rd6 Bd3 24. Nf6+ Qxf6 25. Rxf6 Bxb1 26. Ng1 Re1 27. Qd2 Nd3 28. Rd6 Rd1 29. Qe3 Nf2+ 30. Qxf2 Rxd6 31. a3 Re8 32. h4 Bf5 33. g4 Bd3 34. Kg2 Bb5 35. Kg3 Rd3 36. Qxa7 Rb3 37. Nh3 Ree3 38. Ng5 Be8 39. Qxa6 Rxb2 40. Qf6 Rbb3 41. h5 gxh5 42. gxh5 |
| ECO A04 in 2007 play it! van der weide ka defeats black's de vilder hans by checkmate in 77 moves | 1. Nf3 c5 2. g3 Nc6 3. Bg2 e6 4. O-O d5 5. d3 g6 6. e4 Bg7 7. Qe2 Nge7 8. e5 h6 9. h4 b6 10. c4 Bb7 11. Bf4 Nf5 12. Nc3 Ncd4 13. Qd2 Nxf3+ 14. Bxf3 Nd4 15. Bg2 Qd7 16. Rad1 Rd8 17. Qe3 O-O 18. g4 Kh7 19. g5 h5 20. Bg3 a6 21. Kh2 Rfe8 22. f4 b5 23. b3 Bc6 24. cxd5 exd5 25. Bh3 Qa7 26. Ne2 Nxe2 27. Qxe2 d4 28. f5 Bd5 29. Rf2 Kg8 30. Rdf1 Qb7 31. e6 gxf5 32. Qxh5 Bxe6 33. Bxf5 Bxf5 34. Rxf5 Rd7 35. g6 fxg6 36. Qxg6 Re2+ 37. Kh3 Qg2+ 38. Kg4 Re3 39. Rf8# |
| ECO A04 in 1999 play it! van der weide ka defeats black's etmans maarten d in 67 moves | 1. Nf3 b5 2. e4 Bb7 3. d3 d6 4. g3 Nf6 5. Bg2 g6 6. O-O Bg7 7. Nbd2 O-O 8. Re1 Nbd7 9. a4 a6 10. h4 c5 11. c3 e5 12. b3 bxa4 13. Rxa4 Nb6 14. Ra2 Bc6 15. Ba3 a5 16. d4 Qe7 17. dxc5 dxc5 18. Qe2 Nfd7 19. Rea1 Rfb8 20. Qe3 Bf8 21. Bf1 Qe8 22. Nc4 Nxc4 23. Bxc4 Nb6 24. Bxc5 Nxc4 25. bxc4 Bxc5 26. Qxc5 Bxe4 27. Nxe5 a4 28. Qd4 Bb1 29. Nd7 Qe1+ 30. Kh2 Rd8 31. Nf6+ Kh8 32. Nd5+ Kg8 33. Rb2 Rdb8 34. Nf6+ |
| ECO A07 in 1999 play it! van der weide ka defeats black's moll a in 81 moves | 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 4. d3 e6 5. Nbd2 Bd6 6. O-O Ne7 7. h3 Bh5 8. Qe1 c6 9. e4 e5 10. a3 O-O 11. b3 f6 12. Bb2 Bf7 13. d4 exd4 14. Nxd4 Re8 15. Qd1 Bc5 16. exd5 Nxd5 17. Ne4 Bf8 18. c4 Nc7 19. Nf5 Nc5 20. Ned6 Bxd6 21. Nxd6 Nxb3 22. Nxe8 Qxd1 23. Raxd1 Nxe8 24. Rfe1 Bxc4 25. Re7 Ba6 26. Red7 Nc5 27. Rd8 Rxd8 28. Rxd8 Kf7 29. Bd4 Nb3 30. Bxa7 Ke7 31. Rb8 Na5 32. Bc5+ Kd7 33. Bb4 Nb3 34. Bf8 Nd2 35. h4 f5 36. h5 h6 37. Bh3 Nf3+ 38. Kg2 Ne1+ 39. Kh1 Bd3 40. Rxb7+ Kc8 41. Re7 |
| ECO A08 in 1995 play it! van der weide ka defeats black's boesveld marco in 62 moves | 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O Nf6 5. d3 e5 6. Nbd2 Be7 7. e4 O-O 8. c3 Rb8 9. exd5 Nxd5 10. Re1 f6 11. Nh4 Nc7 12. Nc4 g5 13. Nf3 Bf5 14. h4 h6 15. Ne3 Bxd3 16. Qb3+ Kg7 17. Rd1 b5 18. Nf5+ Bxf5 19. Rxd8 Rbxd8 20. Nd2 c4 21. Qd1 Na5 22. b4 Rd3 23. bxa5 Bc5 24. Qe2 Rfd8 25. Ne4 Be7 26. Be3 Nd5 27. Bxa7 gxh4 28. Be3 hxg3 29. Nxg3 Bg6 30. Bxd5 R3xd5 31. Qg4 Rg8 |
| ECO A07 in 2005 play it! van der weide ka defeats black's wiley tom e eng in 69 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. O-O Bg4 5. d3 Nbd7 6. Nbd2 e5 7. e4 dxe4 8. dxe4 Bc5 9. h3 Bxf3 10. Qxf3 h5 11. Nc4 h4 12. b4 Be7 13. Bb2 Qc7 14. Qc3 hxg3 15. fxg3 Nh5 16. a4 f6 17. a5 O-O 18. Qf3 g6 19. Qg4 Kh7 20. Rad1 Rad8 21. Bf3 Kg7 22. Kg2 Bxb4 23. Qh4 Be7 24. Bxh5 Rh8 25. g4 gxh5 26. gxh5 Kh7 27. Kh2 Rhg8 28. Qf2 Rg5 29. Bc1 Rxh5 30. Qf3 Rh4 31. Bg5 fxg5 32. Qf7+ Kh8 33. Qxe7 Rh7 34. Rf7 Rxf7 35. Qxf7 |
| ECO A07 in 1996 play it! van der weide ka defeats black's de wolf johan in 59 moves | 1. Nf3 d5 2. g3 c6 3. Bg2 h6 4. O-O Bf5 5. d3 Nf6 6. Nbd2 e6 7. Qe1 Nbd7 8. e4 dxe4 9. dxe4 Bh7 10. Qe2 Qc7 11. Rd1 Be7 12. e5 Nd5 13. c4 Nb4 14. Ne4 O-O-O 15. Nd6+ Bxd6 16. exd6 Qb6 17. Be3 c5 18. Rd2 Be4 19. a3 Nc6 20. b4 f5 21. bxc5 Qa5 22. Nd4 Nxd4 23. Bxd4 Bxg2 24. Kxg2 e5 25. Be3 g5 26. Rb1 f4 27. Qf3 Qa6 28. Rdb2 Qc6 29. Qxc6+ bxc6 30. Rb7 |
| ECO A04 in 1993 play it! van der weide ka defeats black's van putten henk in 93 moves | 1. Nf3 g6 2. c4 Bg7 3. Nc3 d6 4. g3 Nc6 5. Bg2 e5 6. O-O f5 7. d3 Nf6 8. Rb1 O-O 9. Bg5 h6 10. Bxf6 Bxf6 11. Nd5 Bg7 12. b4 Ne7 13. b5 Nxd5 14. cxd5 a6 15. a4 axb5 16. axb5 Ra5 17. Nd2 Bd7 18. b6 cxb6 19. Nc4 Ba4 20. Qd2 Rb5 21. Ra1 Bb3 22. Na3 Rc5 23. Qb4 Bc2 24. Ra2 Qc7 25. Nc4 b5 26. Nxd6 Qxd6 27. Rxc2 b6 28. Rxc5 Qxc5 29. Rb1 Qxb4 30. Rxb4 Rf6 31. Rxb5 Rd6 32. e3 Kf7 33. Bf3 Kf6 34. Bd1 g5 35. Bb3 Bf8 36. Bc4 Be7 37. Kg2 g4 38. h3 h5 39. h4 f4 40. gxf4 exf4 41. d4 fxe3 42. fxe3 Kg7 43. e4 Bxh4 44. e5 Rh6 45. d6 Bd8 46. e6 Kf6 47. Re5 |
| ECO A05 in 2007 play it! van der weide ka defeats black's markus john in 49 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O c5 5. d3 g6 6. e4 d6 7. Re1 Bg7 8. Nbd2 Nbd7 9. c3 O-O 10. d4 cxd4 11. cxd4 Rc8 12. b3 Rc7 13. Ba3 Re8 14. e5 dxe5 15. dxe5 Nd5 16. Nc4 Nc5 17. Rc1 Ne6 18. Nd4 Nxd4 19. Qxd4 Rd7 20. Qg4 b5 21. e6 f5 22. exd7 fxg4 23. dxe8=Q+ Qxe8 24. Nd6 Qd7 25. Nxb7 |
| ECO A04 in 2007 play it! van der weide ka defeats black's ernst sipke nld in 119 moves | 1. Nf3 c5 2. e4 e6 3. d3 d5 4. Nbd2 Nc6 5. g3 g6 6. Bg2 Bg7 7. O-O Nge7 8. Re1 O-O 9. c3 h6 10. h4 b6 11. e5 f5 12. exf6 Rxf6 13. Nh2 Qd6 14. Ng4 Rf7 15. Nf1 Kh7 16. Qe2 Bd7 17. f4 Raf8 18. Ne5 Nxe5 19. fxe5 Qc7 20. Bf4 Nc6 21. Nh2 Rf5 22. Nf3 Qd8 23. Qd2 Qe7 24. Re2 R8f7 25. Rf1 Qf8 26. Ref2 Rxf4 27. gxf4 Rxf4 28. Nd4 Nxd4 29. Rxf4 Nf5 30. h5 Bxe5 31. hxg6+ Kxg6 32. Rxf5 exf5 33. Bxd5 Qf6 34. Rf2 Kh7 35. Rg2 b5 36. a3 a5 37. Qe3 b4 38. Qxc5 bxc3 39. bxc3 Bxc3 40. Kf1 Qe5 41. Bg8+ Kh8 42. Qxe5+ Bxe5 43. Bc4 f4 44. Rg8+ Kh7 45. Ra8 Bd4 46. Bd5 a4 47. Rd8 Bh3+ 48. Bg2 Bxg2+ 49. Kxg2 Bc5 50. Ra8 Bxa3 51. Rxa4 Bc1 52. Ra6 Be3 53. Kf3 h5 54. Re6 Kg7 55. Rd6 Kh7 56. d4 Kg7 57. d5 h4 58. Kg4 f3 59. Kxf3 h3 60. Re6 |
| ECO A05 in 1994 play it! van der weide ka defeats black's webbink dinand in 57 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d3 d6 6. e4 e5 7. Nbd2 Nc6 8. Nc4 Ne8 9. c3 h6 10. Re1 Ne7 11. d4 exd4 12. cxd4 d5 13. exd5 Nxd5 14. Nfe5 c6 15. b3 Nb4 16. Ba3 a5 17. Qd2 c5 18. Rad1 Bf5 19. dxc5 Qxd2 20. Rxd2 Nc2 21. Rxc2 Bxc2 22. Bxb7 Nc7 23. Bxa8 Rxa8 24. Nd6 Ne6 25. Nexf7 Nd4 26. Kg2 g5 27. Bb2 g4 28. Bxd4 Bxd4 29. Nxh6+ |
| ECO A03 in 1999 play it! van der weide ka defeats black's erwich marc jl in 61 moves | 1. f4 d5 2. b3 Nf6 3. e3 e6 4. Nf3 Be7 5. Bb2 O-O 6. Bd3 c5 7. Ne5 Qc7 8. Qf3 Nc6 9. Nxc6 Qxc6 10. Nc3 a6 11. g4 b5 12. g5 Ne8 13. Qh3 g6 14. Qh6 f5 15. gxf6 Bxf6 16. Rg1 Bg7 17. Bxg6 hxg6 18. Rxg6 d4 19. O-O-O Kf7 20. Qh7 dxc3 21. Bxc3 Ke7 22. Bxg7 Rf7 23. f5 Qe4 24. Rxe6+ Qxe6 25. Qh4+ Nf6 26. fxe6 Rxg7 27. Rf1 Rg6 28. e4 Kxe6 29. e5 Kxe5 30. Re1+ Kf5 31. Qf2+ |
| ECO A02 in 1992 play it! van der weide ka defeats black's stork ornett in 35 moves | 1. f4 g6 2. Nf3 Bg7 3. g3 d6 4. Bg2 e5 5. d3 Ne7 6. O-O c6 7. Nc3 O-O 8. e4 f5 9. Be3 Kh8 10. Kh1 Na6 11. Qd2 Nc7 12. fxe5 dxe5 13. Bh6 Bxh6 14. Qxh6 Ng8 15. Qe3 f4 16. Qc5 Re8 17. Nxe5 Na6 18. Qd6 |
| ECO A02 in 1992 play it! van der weide ka defeats black's diepeveen vincen in 41 moves | 1. f4 e5 2. fxe5 d6 3. exd6 Bxd6 4. Nf3 g5 5. d4 g4 6. Ng5 h6 7. Ne4 Nf6 8. Qd3 Nxe4 9. Qxe4+ Kf8 10. Bf4 Nc6 11. c3 Qf6 12. Bxd6+ cxd6 13. Nd2 Kg7 14. g3 Bd7 15. Qf4 Qxf4 16. gxf4 Rad8 17. e4 h5 18. O-O-O Kf6 19. d5 Ne7 20. Nc4 Bc8 21. Nxd6 |
| ECO A03 in 1992 play it! van der weide ka defeats black's van ginkel piete in 51 moves | 1. f4 d5 2. b3 Nf6 3. e3 g6 4. Bb2 Bg7 5. Nf3 c5 6. Be2 Nc6 7. O-O O-O 8. Qe1 a6 9. a4 Bd7 10. Na3 Ne4 11. Ne5 Qc7 12. d3 Nd6 13. Nxc6 Bxc6 14. Bxg7 Kxg7 15. Qc3+ f6 16. Qxc5 Nf5 17. a5 e5 18. Bg4 Ne7 19. c4 f5 20. cxd5 Nxd5 21. Bf3 Rad8 22. Rac1 Qb8 23. fxe5 Qxe5 24. e4 fxe4 25. dxe4 Rxf3 26. gxf3 |
| ECO A03 in 1992 play it! van der weide ka defeats black's kroeze frank m in 107 moves | 1. f4 d5 2. b3 Qd6 3. e3 e5 4. fxe5 Qxe5 5. Nc3 Bd6 6. Nf3 Qf6 7. Bb2 c6 8. Nb5 Qxb2 9. Nxd6+ Kf8 10. Nxc8 Qf6 11. Qc1 Nd7 12. Nxa7 Rxa7 13. Be2 g6 14. O-O Kg7 15. c4 Ne7 16. Nd4 Qe5 17. Qc3 f6 18. a4 Nc5 19. cxd5 Ne4 20. Ne6+ Qxe6 21. dxe6 Nxc3 22. dxc3 Nd5 23. e4 Nxc3 24. Bf3 b5 25. e5 fxe5 26. Bxc6 bxa4 27. bxa4 Re7 28. Rf7+ Rxf7 29. exf7 Kxf7 30. a5 Rc8 31. Bb7 Rc7 32. a6 Nb5 33. Ra5 Na7 34. Rxe5 Rc2 35. Kf1 Kf6 36. Re3 Ra2 37. Ke1 Nb5 38. Kd1 h5 39. Kc1 h4 40. Kb1 Ra5 41. Kb2 Kf5 42. h3 g5 43. Rb3 Nc7 44. Ra3 Rb5+ 45. Kc3 Kf4 46. Ra4+ Kg3 47. Rc4 Nd5+ 48. Kd4 Nb6 49. Rc6 g4 50. Rg6 Rb4+ 51. Kc5 Rb2 52. Rxb6 Rc2+ 53. Kd4 gxh3 54. gxh3 |