1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. g2g3  4... d5c4  5. f1g2  5... a7a6 This is one of the most aggressive options against the ultra-solid Catalan Opening. Black intends to protect the c4-pawn with b7-b5. 6. e1g1  6... b8c6  7. b1c3  7... a8b8  8. e2e4  8... f8e7  9. d4d5 It's clear that both players are well prepared with the latest developments of this opening line since all these moves were played very quickly. 9... e6d5  10. e4d5  10... c6b4  11. f3e5  11... c8f5  12. e5c4 [%c_effect c4;square;c4;type;GreatFind;persistent;true] The most accurate move order. 12... e8g8 [%c_effect g8;square;g8;type;GreatFind;persistent;true] Black must resist the temptation to gain material. 13. a2a3  13... b4d3  14. c1e3  14... d8d7  15. b2b4  15... f8e8 This is a popular position in correspondence chess. 16. h2h3 [%c_effect h3;square;h3;type;Interesting;persistent;true] 16... b7b5 The first new move, and it's safe to say that both players are out of book by now. The move works, but it demands accurate play, and it's not the best practical choice. 17. c4a5  17... e7d6 [%c_effect d6;square;d6;type;Inaccuracy;persistent;true] 18. e3d4  18... d3b2  19. d1b3  19... b2a4  20. a5c6 Now White has a clear advantage. The knight on c6 is a monster. 20... b8a8  21. c3a4  21... b5a4  22. b3b2  22... d6f8 [%c_effect f8;square;f8;type;Mistake;persistent;true] 23. d4f6  23... g7f6  24. g1h2  24... f8g7  25. a1d1  25... f5g6  26. b2a2 It's not clear to me whether this is the best square for the queen, but it probably doesn't make much of a difference. 26... d7d6  27. f1e1  27... g6h5  28. d1b1  28... h5g6  29. b1d1  29... g6h5  30. d1c1  30... g7h6  31. f2f4 [%c_effect f4;square;f4;type;Mistake;persistent;true] This is a tactical mistake. 31... h5g6 [%c_effect g6;square;g6;type;Mistake;persistent;true] 32. a2c4 White is much better again. 32... h6f8  33. g2f3  33... g6f5  34. c6d4  34... e8e1  35. c1e1  35... f5d7  36. d4c6  36... g8g7  37. h3h4  37... g7g8  38. h2g2  38... g8g7  39. c4c2 The a4-pawn is doomed. 39... a8e8  40. e1e8  40... d7e8  41. c2a4  41... e8c6 An important moment. 42. d5c6 [%c_effect c6;square;c6;type;Mistake;persistent;true] 42... d6d2  43. g2h3  43... d2d3  44. f3g2  44... f8d6  45. h3h2  45... f6f5  46. a4a5  46... g7f6  47. a3a4  47... h7h6  48. b4b5  48... a6b5  49. a4b5  49... d6c5  50. a5e1  50... f6g6  51. e1e8  51... c5f2  52. e8g8  52... g6f6  53. g8h8  53... f6e7  54. h8e5  54... e7f8  55. e5h8  55... f8e7  56. h8g7  56... h6h5  57. g7e5  57... e7f8  58. e5h8  58... f8e7  59. h8g7  59... e7e8  60. g7e5  60... e8f8  61. e5h8  61... f8e7  62. h8g7  62... e7e8  63. g7g5  63... e8f8  64. b5b6 [%c_effect b6;square;b6;type;GreatFind;persistent;true] A nice winning try. 64... f2b6 [%c_effect b6;square;b6;type;Inaccuracy;persistent;true] 65. g5h5  65... f8g7 [%c_effect g7;square;g7;type;Mistake;persistent;true] The final mistake. 66. h5g5  66... g7h7  67. g5h5  67... h7g7  68. h5g5  68... g7h7  69. g5f6  69... h7g8  70. h4h5 The h-pawn marches, and the game is over. 70... b6c5  71. h5h6  71... c5d4  72. f6d8  72... g8h7  73. d8c7  73... h7h6  74. c7f7  74... d4g1 [%c_effect g1;square;g1;type;Interesting;persistent;true] 75. h2h3  75... g1f2  76. f7g8  76... d3c2  77. g8g5  77... h6h7  78. g5e7  78... h7h6  79. c6c7  79... c2c3  80. e7g5 