| ECO A05 in 1961 play it! bouwmeester hans defeats black's van geet dirk da in 55 moves | 1. Nf3 Nf6 2. g3 b6 3. c4 Bb7 4. Bg2 g6 5. O-O Bg7 6. Nc3 O-O 7. Qc2 d5 8. cxd5 Nxd5 9. Nxd5 Bxd5 10. e4 Bb7 11. d4 Na6 12. Rd1 c5 13. d5 Qd7 14. Bf4 Rad8 15. a3 Rfe8 16. Ng5 Bd4 17. Bh3 Qb5 18. Nxf7 Kxf7 19. Be6+ Kg7 20. Rxd4 cxd4 21. Be5+ Kh6 22. Qd2+ g5 23. h4 Rg8 24. hxg5+ Rxg5 25. Bf4 Nc5 26. Bxg5+ Kg6 27. Bf5+ Kf7 28. Qd1 |
| ECO A04 in 1968 play it! bouwmeester hans defeats black's rojas in 73 moves | 1. Nf3 c5 2. g3 d6 3. Bg2 Nf6 4. O-O g6 5. c4 Bg7 6. Nc3 a6 7. d4 Nbd7 8. e4 cxd4 9. Nxd4 O-O 10. b3 Nc5 11. h3 Ne8 12. Be3 Qc7 13. Rc1 Nf6 14. Qd2 Be6 15. f4 Nh5 16. g4 Nf6 17. b4 Bxc4 18. bxc5 Bxf1 19. cxd6 exd6 20. Bxf1 Qd7 21. g5 Nh5 22. Nd5 Qd8 23. Nb3 Ng3 24. Bg2 Kh8 25. Kh2 Nh5 26. Bf3 Rc8 27. Rd1 Re8 28. Bb6 Qd7 29. Bg4 f5 30. gxf6 Qf7 31. fxg7+ Kg8 32. Bxc8 Rxe4 33. Bg4 Nxf4 34. Nxf4 Rxf4 35. Qxd6 Rf2+ 36. Bxf2 Qxf2+ 37. Kh1 |
| ECO A05 in 1956 play it! bouwmeester hans defeats black's gromek e in 59 moves | 1. Nf3 Nf6 2. g3 c5 3. Bg2 d5 4. O-O Nc6 5. d4 Bf5 6. c4 e6 7. Nc3 Rc8 8. Qa4 Nd7 9. cxd5 Nb6 10. Qd1 exd5 11. Bf4 c4 12. Ne5 Bb4 13. a3 Be7 14. Nxc6 Rxc6 15. e4 dxe4 16. Nxe4 g5 17. Be3 Nd5 18. Bxg5 Bxe4 19. Bxe7 Kxe7 20. Bxe4 h5 21. Qd2 Kf6 22. h4 Kg7 23. Rfe1 Rd6 24. Rad1 Re8 25. Bf3 Rh8 26. Re5 f6 27. Rxh5 Rxh5 28. Bxh5 Ne7 29. Qf4 Rd5 30. Bf3 |
| ECO A04 in 1962 play it! bouwmeester hans defeats black's lantsias andreas in 49 moves | 1. Nf3 c6 2. g3 d5 3. Bg2 Nf6 4. O-O e6 5. d3 Be7 6. Nbd2 Nbd7 7. e4 dxe4 8. dxe4 Qc7 9. Qe2 Ne5 10. Nxe5 Qxe5 11. Nc4 Qc7 12. Bf4 Qd8 13. Rfd1 Bd7 14. Nd6+ Bxd6 15. Bxd6 h5 16. Rd2 Qb6 17. Rad1 e5 18. Bxe5 Bg4 19. Bf3 O-O 20. Bxf6 gxf6 21. Bxg4 hxg4 22. Qxg4+ Kh7 23. Qf5+ Kg7 24. e5 Qxb2 25. Qxf6+ |
| ECO A07 in 1975 play it! bouwmeester hans defeats black's van scheltinga t in 61 moves | 1. Nf3 d5 2. g3 Nd7 3. Bg2 e5 4. d3 Ngf6 5. O-O Be7 6. Nbd2 O-O 7. e4 dxe4 8. dxe4 b6 9. b3 Ba6 10. Re1 c6 11. Bb2 Qc7 12. Nh4 g6 13. Bf1 Bxf1 14. Rxf1 Rad8 15. Qe2 b5 16. Ng2 Nc5 17. f4 Rxd2 18. Qxd2 Ncxe4 19. Qe2 Qb6+ 20. Kh1 Rd8 21. fxe5 Rd2 22. Qe1 Ng4 23. Qxe4 Nf2+ 24. Rxf2 Qxf2 25. e6 f6 26. Qxc6 Kg7 27. Qb7 Kh6 28. Qe4 g5 29. g4 Bc5 30. Re1 Rxc2 31. Bd4 |
| ECO A04 in 1957 play it! bouwmeester hans defeats black's castaldi vincenz in 67 moves | 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 Nh6 6. Nc3 O-O 7. d3 Nf5 8. Bd2 Rb8 9. Rb1 a6 10. Ne4 d6 11. Bc3 b5 12. Bxg7 Nxg7 13. b3 bxc4 14. bxc4 Bd7 15. Qd2 Qc7 16. Nc3 Rxb1 17. Rxb1 Rb8 18. Rb2 Qd8 19. Ng5 Nf5 20. Nge4 Rxb2 21. Qxb2 Qb8 22. Qc1 Nfd4 23. e3 Ne6 24. Nd5 Be8 25. Qa1 f5 26. Nec3 Nc7 27. Ne2 Bd7 28. Nef4 Ne8 29. h4 e6 30. Nf6+ Nxf6 31. Qxf6 Qd8 32. Nd5 Qb8 33. h5 Qf8 34. hxg6 |
| ECO A09 in 1961 play it! bouwmeester hans defeats black's cappello guido in 87 moves | 1. Nf3 d5 2. c4 e6 3. g3 Be7 4. Bg2 Nf6 5. O-O O-O 6. d4 b6 7. cxd5 Nxd5 8. e4 Nf6 9. Qc2 Bb7 10. Nc3 Na6 11. Rd1 c6 12. a3 Rc8 13. Bf4 Nh5 14. Be3 Rc7 15. e5 f5 16. exf6 gxf6 17. Qb3 Bc8 18. Rac1 Re8 19. d5 cxd5 20. Nxd5 Rxc1 21. Nxe7+ Rxe7 22. Rxc1 Bb7 23. Rd1 Qa8 24. Nh4 Bxg2 25. Nxg2 Qc6 26. Rc1 Qd7 27. Qc3 Qd8 28. Qc8 Qxc8 29. Rxc8+ Kf7 30. Rh8 Kg7 31. Ra8 f5 32. Bxb6 axb6 33. Rxa6 Rb7 34. Kf1 Kf7 35. Ke2 Ke7 36. Ra4 Nf6 37. Ne3 Ne4 38. Rb4 Kd7 39. g4 Nd6 40. Nc4 Nc8 41. gxf5 exf5 42. Rb5 Ke6 43. Ke3 Rc7 44. Nxb6 |
| ECO A05 in 1961 play it! bouwmeester hans defeats black's rellstab ludwig in 111 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. O-O Be7 6. Nc3 c5 7. d4 cxd4 8. Qxd4 Nc6 9. Qf4 O-O 10. Rd1 Qc8 11. b3 Rd8 12. Bb2 Qb8 13. Qc1 a6 14. Ng5 h6 15. Nge4 Na5 16. Qe3 Nxe4 17. Nxe4 d5 18. Qd4 e5 19. Qxb6 Nxc4 20. bxc4 dxe4 21. Bc3 Qc8 22. Bxe5 Rxd1+ 23. Rxd1 Bc5 24. Qb2 f6 25. Bd4 Bf8 26. Rc1 Bc6 27. Be3 Qd7 28. Qd4 Qe8 29. Bf4 Kh8 30. Rd1 Qe6 31. Qb6 Bd5 32. Qxe6 Bxe6 33. Bxe4 Re8 34. Bd3 Bc5 35. Rb1 g5 36. Bd2 Rd8 37. Bc3 Kg7 38. Rb7+ Rd7 39. Rb8 Rd6 40. Kf1 h5 41. Ke1 h4 42. Bb4 Rb6 43. Rxb6 Bxb6 44. Bd6 Ba5+ 45. Kd1 Bd7 46. e4 Bc3 47. c5 a5 48. Bc4 Bd4 49. f3 g4 50. Ke2 h3 51. f4 Bc6 52. e5 Bf3+ 53. Kf1 Bg2+ 54. Ke1 Bc3+ 55. Ke2 Bf3+ 56. Ke3 |
| ECO A05 in 1958 play it! bouwmeester hans defeats black's giustolisi alber in 57 moves | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. c4 e6 5. O-O c5 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 O-O 9. Rd1 Qc8 10. e4 Bc5 11. Qd3 Ng4 12. Rd2 Nc6 13. b3 f5 14. exf5 Rxf5 15. Ne4 Nb4 16. Qe2 Qf8 17. Nxc5 Rxc5 18. Rxd7 Bxf3 19. Qxf3 Ne5 20. Qxa8 Nxd7 21. Qxa7 Ne5 22. Be3 Rc8 23. Qxb6 Nbd3 24. Qxe6+ Kh8 25. Rd1 Re8 26. Qd5 Nb4 27. Qc5 Nxa2 28. Qxf8+ Rxf8 29. Rd2 |
| ECO A09 in 1960 play it! bouwmeester hans defeats black's goncalves jorge in 45 moves | 1. Nf3 d5 2. c4 Nf6 3. cxd5 Nxd5 4. d4 c5 5. dxc5 Nc6 6. e4 Nf6 7. Qxd8+ Kxd8 8. Nc3 e5 9. Be3 Ng4 10. Ng5 Nxe3 11. fxe3 Be6 12. Rd1+ Kc8 13. Nxe6 fxe6 14. Na4 Be7 15. Bc4 Nd8 16. Ke2 Kc7 17. Rd2 Rc8 18. Rhd1 Kb8 19. b4 Re8 20. a3 Bf8 21. Bb5 Nc6 22. Nb2 Be7 23. Nc4 |
| ECO A04 in 1972 play it! bouwmeester hans defeats black's eley in 77 moves | 1. Nf3 d6 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. Nc3 Nbd7 7. e4 e5 8. h3 c6 9. Be3 b5 10. dxe5 Nxe5 11. Nxe5 dxe5 12. Bc5 Qxd1 13. Rfxd1 Re8 14. a4 Nd7 15. Bd6 bxa4 16. Nxa4 Bf8 17. Ra3 Re6 18. Bxf8 Kxf8 19. h4 Rb8 20. Rad3 Re7 21. b3 Rb5 22. Rc3 Bb7 23. Bh3 Nf6 24. Nc5 Rc7 25. Ra1 Ba8 26. f3 Re7 27. Bf1 Rb8 28. Ra5 Nh5 29. Kf2 Ng7 30. Rd3 Ke8 31. Bh3 f5 32. Rd1 Rb5 33. Rda1 Rxa5 34. Rxa5 Kf7 35. Bf1 Kf6 36. Bc4 Ne8 37. Ra1 Nd6 38. Ba6 Bb7 39. Rd1 |
| ECO A05 in 1964 play it! bouwmeester hans defeats black's salazar hernan in 57 moves | 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d6 5. O-O O-O 6. Nc3 c6 7. e4 Nbd7 8. h3 e5 9. Be3 a6 10. a4 Ne8 11. dxe5 dxe5 12. Bc5 Qa5 13. Bxf8 Nxf8 14. Nb1 Be6 15. Nbd2 Rd8 16. Qe2 h6 17. c3 g5 18. Nc4 Qc7 19. Ne3 Nd6 20. Nd2 Ng6 21. Ndc4 Ne8 22. Nf5 Bf8 23. Nce3 Kh7 24. Qc2 a5 25. Rfd1 Rxd1+ 26. Rxd1 Nf6 27. Qd2 Qb6 28. Qd8 Bc5 29. Qxf6 |
| ECO A09 in 1997 play it! bouwmeester hans defeats black's de jager jaap in 79 moves | 1. Nf3 d5 2. c4 c6 3. d4 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. f3 Bb4 8. Bg5 h6 9. Bh4 c5 10. dxc5 Qxd1+ 11. Kxd1 Nfd7 12. Nxd7 Nxd7 13. e4 Bh7 14. Bxc4 Bxc3 15. bxc3 Rc8 16. Bb5 f6 17. Rb1 Rc7 18. c6 bxc6 19. Bc4 Ke7 20. Ke2 e5 21. Bf2 Bg8 22. Kd3 Be6 23. Bxe6 Kxe6 24. Kc4 Rd8 25. a5 Nb8 26. Rhd1 Rxd1 27. Rxd1 Na6 28. Rd8 Rb7 29. Re8+ Kd6 30. Rd8+ Ke6 31. Ra8 Rb5 32. Rxa7 Rxa5 33. Rxg7 Ra2 34. Be3 Ra4+ 35. Kb3 Ra5 36. Bxh6 Nc5+ 37. Kb4 Rb5+ 38. Kc4 Ra5 39. Be3 Nd7 40. h4 |
| ECO A15 in 1968 play it! bouwmeester hans defeats black's janetschek karl in 37 moves | 1. c4 Nf6 2. g3 g6 3. Bg2 c5 4. Nc3 Bg7 5. Nf3 Nc6 6. d4 cxd4 7. Nxd4 Nxd4 8. Qxd4 d6 9. O-O O-O 10. Qh4 Qa5 11. Rd1 Be6 12. Bd2 Qc5 13. b3 Ng4 14. Ne4 Qf5 15. h3 Bxa1 16. Rxa1 Nf6 17. g4 Qe5 18. Bc3 g5 19. Qh6 |
| ECO A16 in 1967 play it! bouwmeester hans defeats black's scholl e in 55 moves | 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 g6 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 O-O 8. Nf3 c5 9. O-O Nc6 10. Qa4 Qc7 11. Ba3 b6 12. Nd4 Nxd4 13. cxd4 Bd7 14. Qc2 Bc6 15. Bxc6 Qxc6 16. dxc5 Rfc8 17. Rfc1 Bf6 18. Qc4 bxc5 19. Bxc5 e5 20. d3 Bg5 21. Rc3 Rab8 22. Rxb8 Rxb8 23. Bb4 Qa4 24. Bd6 Qd1+ 25. Kg2 Rd8 26. Bc7 Rf8 27. Qe4 Bd2 28. Rc4 |
| ECO A16 in 1968 play it! bouwmeester hans defeats black's lkhagva p in 67 moves | 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. e4 O-O 6. Nge2 c5 7. d4 Nfd7 8. O-O Nc6 9. d5 Na5 10. b3 a6 11. Rb1 b5 12. cxb5 axb5 13. Nxb5 Ba6 14. Nbc3 Bxc3 15. Nxc3 Bxf1 16. Bxf1 Qb6 17. Bb5 Nf6 18. Qe2 Nb7 19. a3 Rfc8 20. Na4 Qd8 21. b4 Rab8 22. Bb2 cxb4 23. axb4 e5 24. dxe6 fxe6 25. Rd1 Ne8 26. Bc4 Qe7 27. Nb6 Rc7 28. Nd5 Qf7 29. Nxc7 Nxc7 30. Qe3 h5 31. Ra1 d5 32. exd5 exd5 33. Qe5 Kh7 34. Bxd5 |
| ECO A15 in 1968 play it! bouwmeester hans defeats black's haygarth in 53 moves | 1. c4 Nf6 2. g3 e6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. b3 c5 7. Bb2 Nc6 8. e3 Qc7 9. Nc3 a6 10. cxd5 exd5 11. d4 Be6 12. dxc5 Bxc5 13. Na4 Be7 14. Rc1 Rfd8 15. Nd4 Rac8 16. Nxe6 fxe6 17. Bh3 Kf7 18. Bxf6 Bxf6 19. Nc5 Rd6 20. Qh5+ Ke7 21. Qxh7 Qb8 22. Qd3 Ne5 23. Qe2 Rdc6 24. b4 Rh8 25. Bg2 Rb6 26. e4 Rxb4 27. Rb1 |
| ECO A11 in 1970 play it! bouwmeester hans defeats black's whiteley andrew in 49 moves | 1. c4 c6 2. e4 e5 3. Nc3 Nf6 4. Nf3 d6 5. d4 Nbd7 6. Be2 g6 7. d5 cxd5 8. cxd5 Nc5 9. Be3 Qa5 10. Bb5+ Bd7 11. Bxd7+ Nfxd7 12. O-O Qb4 13. Qc2 Be7 14. Nd2 a5 15. a3 Qb6 16. Na4 Qb5 17. Nxc5 Nxc5 18. Bxc5 Rc8 19. b4 dxc5 20. a4 Qa6 21. b5 Qf6 22. Nc4 b6 23. Rad1 Bd8 24. d6 O-O 25. Rd5 |
| ECO A00 in 1971 play it! bouwmeester hans defeats black's berner wolfram in 111 moves | 1. g3 d5 2. Bg2 g6 3. Nf3 Bg7 4. O-O f5 5. d4 Nf6 6. c4 c6 7. Nc3 O-O 8. b3 Ne4 9. Qc2 e6 10. Ba3 Rf6 11. Ne5 Nxc3 12. Qxc3 Nd7 13. Rad1 g5 14. f3 f4 15. e3 Nxe5 16. dxe5 Rf5 17. exf4 gxf4 18. Rfe1 Bd7 19. g4 Rf7 20. Bd6 a5 21. Bf1 Bf8 22. Bxf8 Qxf8 23. cxd5 cxd5 24. Rd4 Qd8 25. Qd2 Qg5 26. Qf2 Rc8 27. Kg2 h6 28. Bd3 Be8 29. Bb1 Bb5 30. Rd2 Rfc7 31. Qb6 Bc6 32. Qf2 Qe7 33. Rd4 Rf8 34. Rc1 Qg5 35. Qe1 Rg7 36. h4 Qd8 37. Kh3 Qb6 38. Qd2 Qc7 39. Re1 Qb6 40. Kg2 Qd8 41. Kh3 Qb6 42. h5 Be8 43. Rxf4 Rxf4 44. Qxf4 Rf7 45. Qe3 Qxe3 46. Rxe3 Rc7 47. f4 Rc1 48. Bg6 Bc6 49. Re2 Rh1+ 50. Rh2 Re1 51. Rd2 Kg7 52. Kg3 Rg1+ 53. Kh2 Rf1 54. f5 Re1 55. f6+ Kf8 56. g5 |
| ECO A00 in 1964 play it! bouwmeester hans defeats black's beni alfred in 63 moves | 1. g3 d5 2. Nf3 g6 3. Bg2 Bg7 4. O-O Nh6 5. d3 Nf5 6. Nbd2 d4 7. Nc4 Nc6 8. e4 dxe3 9. fxe3 Be6 10. Qe2 h5 11. Ng5 Bxc4 12. dxc4 Qd6 13. Nxf7 Kxf7 14. e4 Qe6 15. Qd3 Ne5 16. Qd5 Qxd5 17. cxd5 Ng4 18. c3 Ngh6 19. Bf4 Rac8 20. Rae1 Bf6 21. exf5 Nxf5 22. h3 Nd6 23. Re6 Kg7 24. Be5 Rhe8 25. Rxe7+ Rxe7 26. Bxf6+ Kf7 27. Bxe7+ Kxe7 28. h4 g5 29. Re1+ Kf6 30. Re6+ Kf5 31. Bh3+ g4 32. Bf1 |