| ECO A05 in 1972 play it! christiansen lar defeats black's costa manuel in 97 moves | 1. Nf3 Nf6 2. g3 g6 3. b4 Bg7 4. Bb2 O-O 5. Bg2 d6 6. d3 e5 7. c4 Nbd7 8. O-O Nh5 9. Nc3 f5 10. Rc1 Ndf6 11. c5 Qe7 12. cxd6 cxd6 13. Nb5 Ne8 14. Nd2 Be6 15. Nc4 Qd7 16. a4 f4 17. d4 e4 18. d5 Bh3 19. Bxg7 Nhxg7 20. Bxe4 fxg3 21. hxg3 Bxf1 22. Qxf1 Qe7 23. Qg2 Rd8 24. Rc3 Qf6 25. Qf1 a6 26. Rf3 Qe7 27. Nc3 Rc8 28. Rxf8+ Kxf8 29. Bd3 Nf6 30. Qh3 Rc7 31. Qh4 Kg8 32. a5 Nge8 33. Qd4 Qg7 34. Kg2 Nh5 35. Qxg7+ Kxg7 36. Ne4 h6 37. Ned2 Nhf6 38. e4 Nd7 39. f4 Kf6 40. Nf3 Ke7 41. e5 g5 42. Nfd2 gxf4 43. gxf4 b5 44. axb6 Rb7 45. Bg6 Ng7 46. Nxd6 Rb8 47. N2c4 Rf8 48. Kg3 Rg8 49. Kf3 |
| ECO A04 in 1976 play it! christiansen lar defeats black's boersma paulus a in 95 moves | 1. Nf3 c5 2. c4 Nf6 3. Nc3 e6 4. g3 Be7 5. Bg2 O-O 6. O-O a6 7. b3 Nc6 8. d4 cxd4 9. Nxd4 Qc7 10. Bb2 d6 11. Rc1 Nxd4 12. Qxd4 Bd7 13. Rfd1 Rfd8 14. Qf4 Rac8 15. h3 Qb8 16. Ne4 Nxe4 17. Bxe4 Be8 18. Qg4 Bf8 19. Bf6 Rd7 20. Rd4 g6 21. Rcd1 b5 22. Bd3 Ra7 23. Qf3 bxc4 24. Rxc4 Rxc4 25. Bxc4 d5 26. Bd4 Be7 27. Bxa7 Qxa7 28. Bd3 a5 29. Rc1 Qb8 30. e4 d4 31. e5 Bb4 32. Ba6 Bc3 33. Rxc3 dxc3 34. Qxc3 Qb6 35. Qc8 Kg7 36. Qxe8 Qxa6 37. Qa4 Qb6 38. Qc4 Qd8 39. Qc5 Qd2 40. a3 h5 41. h4 g5 42. hxg5 h4 43. gxh4 Qf4 44. Qc4 Qxe5 45. Kg2 Qb2 46. h5 Qxa3 47. Qd4+ Kh7 48. Qf6 |
| ECO A07 in 1975 play it! christiansen lar defeats black's bravo h in 79 moves | 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d3 O-O 6. Nbd2 c5 7. e4 Nc6 8. Re1 Re8 9. e5 Nd7 10. Nf1 f6 11. exf6 Nxf6 12. Bf4 Bd6 13. Ne5 Qc7 14. Qe2 Nd4 15. Qd2 Nh5 16. c3 Nxf4 17. cxd4 Nxg2 18. Kxg2 cxd4 19. Rac1 Qe7 20. a3 Bd7 21. Re2 Bb5 22. h4 Qf6 23. Nh2 Rf8 24. f4 Be8 25. Rce1 Rc8 26. Nhf3 Bc5 27. Rc1 Bb5 28. Qe1 Qf5 29. Rec2 b6 30. Nxd4 Bxd4 31. Rxc8 Bxe5 32. Rxf8+ Kxf8 33. Qb4+ Kf7 34. Qxb5 Bd4 35. Qd7+ Kg6 36. Rc6 Bxb2 37. Rxe6+ Bf6 38. Qe8+ Kh6 39. Re3 Qg4 40. Qe6 |
| ECO A04 in 1988 play it! christiansen lar defeats black's fleck juergen in 53 moves | 1. Nf3 d6 2. d4 f5 3. Nc3 Nf6 4. Bg5 g6 5. Bxf6 exf6 6. d5 c5 7. dxc6 bxc6 8. g3 Be7 9. Bg2 Bb7 10. h4 Na6 11. h5 Kf7 12. O-O d5 13. Nd4 Re8 14. e3 Bf8 15. a3 Qd7 16. b4 Nc7 17. Na4 Ne6 18. Rc1 Ba6 19. Re1 Nxd4 20. Qxd4 Bb5 21. Nc3 Bc4 22. Rcd1 Qc7 23. b5 Bxa3 24. bxc6 Qxc6 25. Nxd5 Red8 26. Qc3 Rxd5 27. Qxc4 |
| ECO A04 in 1973 play it! christiansen lar defeats black's leow leslie m in 63 moves | 1. Nf3 e6 2. b3 f5 3. Bb2 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O b6 7. Ne5 c6 8. c4 Bb7 9. d4 d5 10. Nd2 Ne4 11. Ndf3 Bf6 12. Rc1 Qd6 13. Rc2 a5 14. Qd3 Nd7 15. Rfc1 Rfc8 16. cxd5 exd5 17. Qe3 g6 18. h4 Nf8 19. a3 c5 20. Nd3 Re8 21. Qh6 Qe7 22. dxc5 Bxb2 23. Rxb2 bxc5 24. Rbc2 Rac8 25. h5 d4 26. hxg6 hxg6 27. Nfe5 Qf6 28. Qf4 g5 29. Ng4 Qg7 30. Qxf5 Nd7 31. Bxe4 Bxe4 32. Qxd7 |
| ECO A05 in 1973 play it! christiansen lar defeats black's freile martin ja in 79 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Nc6 7. a3 d6 8. Rb1 Bf5 9. d3 Qd7 10. b4 Rae8 11. Nd5 e5 12. Nxf6+ Bxf6 13. Bh6 Bg7 14. Bxg7 Kxg7 15. Qd2 b6 16. b5 Nd8 17. a4 Qc7 18. Ng5 h6 19. Ne4 Bxe4 20. dxe4 Nb7 21. h4 Qe7 22. Bh3 Na5 23. Qc3 Kh7 24. Rbd1 f6 25. Kh2 Rd8 26. Rd5 Nb7 27. Rfd1 Rf7 28. Qf3 Na5 29. Qd3 Nb7 30. h5 Rg7 31. hxg6+ Kxg6 32. Qf3 Rh8 33. Bc8 Rxc8 34. Qf5+ Kf7 35. Qxc8 Rg8 36. Qf5 Rh8 37. Kg2 Qe6 38. Qh5+ Ke7 39. Rh1 Na5 40. Qg6 |
| ECO A05 in 1973 play it! christiansen lar defeats black's garcia gildardo in 53 moves | 1. Nf3 Nf6 2. c4 e6 3. g3 Be7 4. Bg2 d5 5. b3 b6 6. Bb2 Bb7 7. O-O O-O 8. d4 Nbd7 9. Nc3 a6 10. Rc1 Bd6 11. Qd3 Ne4 12. e3 f5 13. Ne2 Qf6 14. Rc2 g5 15. cxd5 exd5 16. Ne5 Nxe5 17. dxe5 Bxe5 18. Rxc7 Bxb2 19. Rxb7 Qc6 20. Re7 Bf6 21. Nd4 Qc8 22. Nxf5 Qxf5 23. g4 Qxg4 24. Qxd5+ Kh8 25. Rxe4 Qe2 26. Re6 b5 27. Rxf6 |
| ECO A04 in 1973 play it! christiansen lar defeats black's weber robert in 83 moves | 1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Be2 O-O 6. O-O Nc6 7. d5 Nb8 8. Be3 e5 9. dxe6 Bxe6 10. Qd2 Ng4 11. Bg5 Qc8 12. Nd4 Ne5 13. Nxe6 fxe6 14. Rad1 Nbc6 15. Bh6 a6 16. Bxg7 Kxg7 17. f4 Nd7 18. Rf3 Qd8 19. Rh3 Qe7 20. e5 dxe5 21. Bd3 Qf7 22. Rf1 Nc5 23. Bxg6 hxg6 24. f5 Rh8 25. fxg6 Qxf1+ 26. Kxf1 Rxh3 27. gxh3 Rf8+ 28. Kg2 Kxg6 29. Nd5 Rd8 30. Ne7+ Kf7 31. Qf2+ Kxe7 32. Qxc5+ Kd7 33. h4 Ne7 34. Qb4 Rg8+ 35. Kh1 Nd5 36. Qe4 Ne7 37. Qh7 Ke8 38. c4 Kf8 39. Qh6+ Ke8 40. h5 Kd7 41. Qf6 Ke8 42. Qxe6 |
| ECO A04 in 1978 play it! christiansen lar defeats black's van der sterren in 97 moves | 1. Nf3 c5 2. e4 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. d3 Qe7 8. Nbd2 Nf6 9. Nc4 Nd7 10. a3 O-O 11. b4 Rd8 12. Qe2 b6 13. Be3 Ba6 14. Nfd2 Qf8 15. Reb1 Re8 16. f3 f5 17. Nb3 cxb4 18. axb4 Bxc4 19. dxc4 fxe4 20. fxe4 Qe7 21. c5 b5 22. Na5 Rac8 23. Rd1 Nb8 24. Rd6 Bf8 25. Qg4 Qg7 26. Rd3 Qf7 27. Bg5 Qe6 28. Qh4 Be7 29. Rh3 Qf7 30. Rf1 Bxg5 31. Qxg5 Qe7 32. Qg4 Rf8 33. Rhf3 Rxf3 34. Rxf3 Rd8 35. h4 Kg7 36. h5 Rf8 37. Rxf8 Qxf8 38. g3 Qd8 39. Qf3 gxh5 40. c3 Qd7 41. Qxh5 Qe7 42. Kg2 Qe6 43. Qg5+ Kf7 44. Nb7 Qe7 45. Nd6+ Kf8 46. Qf5+ Kg7 47. Qg4+ Kf6 48. Qh4+ Ke6 49. Qh3+ |
| ECO A06 in 1976 play it! christiansen lar defeats black's nikolac juraj in 61 moves | 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5 c4 11. dxe6 fxe6 12. Bc2 Bb7 13. O-O Qb6 14. Qe2 O-O-O 15. a4 b4 16. a5 Qc7 17. Na4 b3 18. Bb1 Bb4 19. Bf4 e5 20. Nxe5 Nxe5 21. Bxe5 Qxe5 22. Qxc4+ Kb8 23. Qxb4 Ng4 24. f4 Qd4+ 25. Qxd4 Rxd4 26. Nc5 Rd2 27. Nxb3 Rxb2 28. Nc5 Rd8 29. Bd3 Ka8 30. Rfb1 Rd2 31. Rd1 |
| ECO A05 in 1971 play it! christiansen lar defeats black's fritzinger denni in 105 moves | 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 e6 6. d4 Be7 7. Bc4 Nxc3 8. bxc3 Nc6 9. O-O O-O 10. Qc2 b6 11. Rd1 Qc7 12. Bd3 g6 13. e4 cxd4 14. cxd4 Qb7 15. a3 Bf6 16. Bb2 Ne7 17. Rac1 Rd8 18. Qd2 Rd7 19. Qf4 Bg7 20. Bb5 Rd8 21. Rc7 Qb8 22. g3 e5 23. Qc1 Bg4 24. Rd3 Bxf3 25. Rxf3 Rc8 26. Rxc8+ Qxc8 27. Bc4 b5 28. Bxf7+ Kh8 29. Qxc8+ Rxc8 30. dxe5 Rf8 31. Bc3 Rc8 32. Rd3 Rc5 33. Rd8+ Bf8 34. Bd4 Rc1+ 35. Kg2 Nc6 36. Rxf8+ Kg7 37. Rc8 Kxf7 38. Bxa7 Rc4 39. Be3 Nxe5 40. Rxc4 Nxc4 41. Bc5 Ke6 42. f3 Nb2 43. f4 Nc4 44. Bb4 h5 45. Kf3 Nb6 46. h3 Nd7 47. g4 hxg4+ 48. hxg4 Nf6 49. f5+ Kf7 50. Kf4 gxf5 51. gxf5 Nh5+ 52. Kg5 Ng7 53. e5 |
| ECO A05 in 1977 play it! christiansen lar defeats black's harari z in 93 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. Be3 Qe7 8. d5 Ng4 9. Bg5 f6 10. Bh4 Nh6 11. Nd2 g5 12. Bg3 f5 13. exf5 Nxf5 14. Nde4 Nd7 15. Qd2 Bh6 16. O-O a5 17. Bd3 b6 18. Rae1 Rf7 19. Qe2 Nf8 20. Qh5 Kg7 21. Nd1 Ng6 22. Ne3 Nf4 23. Qd1 Kh8 24. Kh1 Bd7 25. Be2 Nxe3 26. fxe3 Nxe2 27. Qxe2 Raf8 28. Kg1 g4 29. Rf2 Bf5 30. Nc3 Qg5 31. b3 Bg7 32. Ref1 h5 33. e4 Bg6 34. Rxf7 Rxf7 35. Rxf7 Bxf7 36. Nb5 h4 37. Be1 Qc1 38. Qd2 Qb1 39. Nc3 Qa1 40. Kf2 g3+ 41. hxg3 hxg3+ 42. Kxg3 Kh7 43. Qd1 Qb2 44. Qb1 Qa3 45. Nb5 Qc5 46. Bf2 Qb4 47. Qe1 |
| ECO A04 in 1978 play it! christiansen lar defeats black's seirawan y in 83 moves | 1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Be2 O-O 6. O-O Nc6 7. d5 Nb8 8. Bg5 c6 9. Qd2 Qc7 10. Rad1 Nbd7 11. Rfe1 a5 12. Bf1 a4 13. a3 Re8 14. h3 Nb6 15. Bh6 cxd5 16. Bxg7 Kxg7 17. exd5 Bd7 18. Re3 Ra5 19. Rd3 Nc4 20. Qc1 Rc5 21. Ng5 Nxa3 22. Rd4 h6 23. Nge4 Nxe4 24. Rxe4 Nc4 25. Rdd4 Nb6 26. Rh4 Rh8 27. Qa1 Ra8 28. Bd3 g5 29. Rxh6 Kxh6 30. Rh4+ Kg7 31. Rh7+ Kf6 32. Rh6+ Kg7 33. Rh7+ Kf6 34. Ne4+ Kg6 35. Qd1 g4 36. Qd2 Rxd5 37. Qh6+ Kf5 38. Rxf7+ Ke5 39. Qg7+ Ke6 40. Rf6+ Ke5 41. Rxd6+ Kf4 42. g3+ |
| ECO A04 in 1973 play it! christiansen lar defeats black's barnes c in 73 moves | 1. Nf3 g6 2. e4 c5 3. d4 Bg7 4. c4 d6 5. Nc3 Nc6 6. d5 Nd4 7. h3 e5 8. dxe6 fxe6 9. Nxd4 cxd4 10. Nb5 Qb6 11. Qa4 Bd7 12. Bd2 a6 13. Qa3 Bxb5 14. cxb5 Nf6 15. Bd3 O-O 16. bxa6 bxa6 17. O-O Nd7 18. Ba5 Qb8 19. Rac1 Ra7 20. Bb4 Be5 21. Rc6 Rb7 22. Bxd6 Bxd6 23. Rxd6 Ne5 24. Rxe6 Rbf7 25. Rxe5 Qxe5 26. Bc4 Qxe4 27. Qxa6 Kg7 28. Bxf7 Rxf7 29. Qc4 Rd7 30. Rd1 Qe5 31. Qd3 Qa5 32. a3 Qa4 33. b4 Rd5 34. Re1 Qd7 35. Re4 Qd6 36. g3 Qc6 37. Rxd4 |
| ECO A04 in 1977 play it! christiansen lar defeats black's verduga denis me in 65 moves | 1. Nf3 d6 2. d4 g6 3. e4 Bg7 4. Nc3 Nf6 5. Be2 O-O 6. O-O Na6 7. e5 Nd7 8. Bf4 dxe5 9. dxe5 Nac5 10. Qc1 c6 11. Bh6 Qa5 12. Bxg7 Kxg7 13. Re1 Ne6 14. Bc4 Nb6 15. Bxe6 Bxe6 16. Re4 Nd5 17. Rh4 h5 18. Ne4 Bg4 19. Nd4 Rad8 20. h3 Bc8 21. Rxh5 Rh8 22. Rxh8 Rxh8 23. c4 Rh4 24. Qe1 Qb6 25. Nf3 Rxe4 26. Qxe4 Qxb2 27. Qb1 Qxb1+ 28. Rxb1 Nc3 29. Rb2 a5 30. Nd4 g5 31. a3 f5 32. Nb3 a4 33. Na5 |
| ECO A04 in 1978 play it! christiansen lar defeats black's seirawan yasser in 83 moves | 1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Nc3 Nf6 5. Be2 O-O 6. O-O Nc6 7. d5 Nb8 8. Bg5 c6 9. Qd2 a5 10. Rad1 Qc7 11. Rfe1 a4 12. a3 Nbd7 13. h3 Re8 14. Bf1 Nb6 15. Bh6 cxd5 16. Bxg7 Kxg7 17. exd5 Bd7 18. Re3 Ra5 19. Rd3 Nc4 20. Qc1 Rc5 21. Ng5 Nxa3 22. Rd4 h6 23. Nge4 Nxe4 24. Rxe4 Nc4 25. Rdd4 Nb6 26. Rh4 Rh8 27. Qe1 Re8 28. Bd3 g5 29. Rxh6 Kxh6 30. Rh4+ Kg7 31. Rh7+ Kf6 32. Rh6+ Kg7 33. Rh7+ Kf6 34. Ne4+ Kg6 35. Qd1 g4 36. Qd2 Rxd5 37. Qh6+ Kf5 38. Rxf7+ Ke5 39. Qg7+ Ke6 40. Rf6+ Ke5 41. Rxd6+ Kf4 42. g3+ |
| ECO A05 in 1977 play it! christiansen lar defeats black's remlinger l in 131 moves | 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. Be3 exd4 8. Nxd4 Re8 9. f3 c6 10. Qd2 d5 11. exd5 cxd5 12. O-O Nc6 13. c5 Qe7 14. Bf2 Be6 15. Rfe1 Rad8 16. Ncb5 Qd7 17. b4 Rf8 18. Nxc6 bxc6 19. Nd4 Ne8 20. Rac1 Nc7 21. a4 Bxd4 22. Bxd4 Rb8 23. Bd3 f6 24. b5 cxb5 25. axb5 Bf5 26. Bxf5 Qxf5 27. Re7 Rf7 28. Rce1 g5 29. b6 axb6 30. cxb6 Rxe7 31. Rxe7 Ne6 32. b7 Qb1+ 33. Kf2 Nf4 34. Bxf6 Rxb7 35. Rxb7 Qxb7 36. Bxg5 Ne6 37. Be3 Qb3 38. g4 Qc4 39. Qc1 Qa6 40. Qb2 Qd6 41. Kg2 d4 42. Bd2 Nf4+ 43. Kf1 Qa6+ 44. Kg1 Ne6 45. Qb8+ Kg7 46. Qe5+ Kf7 47. Qh5+ Kg8 48. Qe8+ Nf8 49. Kf2 Qa2 50. Qe2 Qb3 51. Qe4 Qc4 52. h4 Ne6 53. h5 Qa2 54. Kg3 Qc4 55. h6 Qb3 56. Qa8+ Kf7 57. Qa7+ Kg8 58. Qe7 Qb8+ 59. Kg2 Qc8 60. Qd6 Kf7 61. Qd5 Qc2 62. Qa5 Nf4+ 63. Kg3 Ne2+ 64. Kh4 Ng1 65. Qd5+ Ke8 66. Qe6+ |
| ECO A13 in 1989 play it! christiansen lar defeats black's van der sterren in 61 moves | 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8. Qc2 Re8 9. Nf3 c6 10. O-O Nf8 11. h3 g6 12. Bh6 Ne6 13. Ne5 Ng7 14. g4 Nd7 15. f4 Bf8 16. Qf2 f6 17. Nf3 Nb6 18. Rae1 Bd7 19. Kh1 Re7 20. f5 gxf5 21. g5 Re6 22. Rg1 fxg5 23. Bxg5 Qe8 24. Ne2 h6 25. Bf4 Qh5 26. Rg3 Be8 27. Reg1 Rg6 28. Be5 Rxg3 29. Qxg3 Qf7 30. Nf4 Rd8 31. Bxg7 |
| ECO A22 in 1994 play it! christiansen lar defeats black's computer in 108 moves | 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. Rb1 O-O 9. b4 Bf5 10. b5 Nd4 11. d3 Nxf3+ 12. Bxf3 Rb8 13. Be3 Qd7 14. a4 Bh3 15. Re1 Be6 16. Qc2 f5 17. a5 f4 18. Bd2 Na8 19. Ne4 fxg3 20. hxg3 Bg4 21. Qc4+ Kh8 22. Bxg4 Qxg4 23. Kg2 Rf5 24. Nd6 Qxc4 25. Nxc4 Bc5 26. f3 Re8 27. Rh1 Bd4 28. Rh4 h6 29. Re4 Kg8 30. g4 Rf6 31. e3 Bc5 32. Rxe5 Rxe5 33. Nxe5 Re6 34. f4 g5 35. Kf3 gxf4 36. exf4 Rd6 37. Rc1 Rd5 38. Ke4 Rd4+ 39. Kf5 Rd5 40. Rh1 Bf8 41. Rb1 Bc5 42. Bc3 Bd4 43. Bxd4 Rxd4 44. g5 hxg5 45. Kxg5 Rd5 46. Kf6 Kf8 47. f5 Rd6+ 48. Kg5 Rd5 49. Ng6+ Ke8 50. Rh1 Rxb5 51. Rh8+ Kd7 52. a6 bxa6 53. Rxa8 a5 54. Rxa7 Kc6 |
| ECO A16 in 1976 play it! christiansen lar defeats black's cleghorn peter u in 31 moves | 1. c4 Nf6 2. Nc3 c5 3. g3 Nc6 4. Nf3 e6 5. d4 cxd4 6. Nxd4 Bc5 7. Nb3 Bb4 8. Bg2 d5 9. cxd5 Nxd5 10. a3 Bxc3+ 11. bxc3 Qf6 12. O-O Qxc3 13. Bd2 Qb2 14. e4 Nde7 15. Rc1 O-O 16. Bc3 |