context: 1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4d5  3... c6d5  4. f1d3  4... b8c6  5. c2c3 This variation against the Caro-Kann Defense is more poisonous than it seems. Bobby Fischer achieved a famous and devastating victory against Tigran Petrosian using this line. 5... d8c7 This is played in order to prevent White from developing the bishop on f4. 6. g1e2  6... c8g4  7. e1g1  7... e7e6  8. d1e1 [%c_effect e1;square;e1;type;Interesting;persistent;true] A subtle move. In addition to taking the knight out of the pin, White has another idea that will soon be revealed. 8... g8f6  9. f2f3  9... g4h5  10. e1h4 This is one of the points of White's play, although it's less dangerous than it seems at first sight. 10... h8g8 [%c_effect g8;square;g8;type;Interesting;persistent;true] A fantastic idea, and not new to this game. Black loses the right to castle, but prepares Bg6 to take with the h-pawn. 11. c1f4  11... c7b6  12. b1d2  12... h5g6  13. d3g6  13... h7g6  14. a2a4  14... f8e7  15. h4f2 The first new move of the game. 15... g8h8 The rook goes back to the now-open file. It's worth remembering that only this rook has moved, so castling queenside is still possible, although not advisable. I must admit that I once forgot that the rook had already moved and castled anyway, to my opponent's surprise - probably many have a similar story to tell. 16. b2b4  16... f6h5  17. a4a5  17... b6d8  18. f4e3  18... e7d6 The bishop goes to a better diagonal and forces a slight weakening in White's position. 19. g2g3  19... c6e7  20. g3g4  20... h5f6  21. e3f4  21... a8c8  22. f2g3  22... d6f4  23. g3f4  23... d8c7  24. f4c7  24... c8c7 The king in the center is not an issue anymore. It transpires that white's pawn advance on the queenside merely created weaknesses - the pawn chain is overextended. 25. d2b3  25... e7c8 [%c_effect c8;square;c8;type;GreatFind;persistent;true] 26. b3c5  26... c8d6  27. g1g2  27... e8e7  28. f1e1  28... g6g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] 29. e1h1  29... f6d7  30. g2g3  30... b7b6  31. a5b6  31... a7b6  32. c5d7 A comprehensible decision: it's not easy to evaluate whether to keep the knights or exchange them. 32... e7d7  33. h2h4  33... g5h4  34. h1h4  34... h8h4  35. g3h4  35... d6b5  36. a1c1 [%c_effect c1;square;c1;type;Inaccuracy;persistent;true] 36... c7a7  37. h4g3  37... a7a2 Although the pawn structure is different, this position reminded me of the famous Lasker-Capablanca ending from game 10 of their 1921 match. 38. e2f4 [%c_effect f4;square;f4;type;Inaccuracy;persistent;true] 38... a2a3 [%c_effect a3;square;a3;type;Inaccuracy;persistent;true] 39. f4e2  39... a3a2  40. e2f4  40... g7g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] 41. f4d3  41... f7f6  42. d3f2  42... a2d2  43. f2d1  43... d2e2  44. d1f2  44... e2a2 Black is not in a hurry as White has no counterplay. 45. f2d1  45... d7e7  46. d1e3  46... a2e2  47. e3d1  47... b5a3  48. c1a1  48... a3c4  49. d1f2  49... e2c2  50. a1a7  50... e7d6  51. a7f7  51... c2c3  52. f7f6  52... c4d2 [%c_effect d2;square;d2;type;Mistake;persistent;true] Both players were down to seconds on the clock, when mistakes are inevitable. 53. g3g2 [%c_effect g2;square;g2;type;Mistake;persistent;true] 53... d6e7 [%c_effect e7;square;e7;type;GreatFind;persistent;true] Now the f3-pawn falls and Black is winning again. 54. f6g6  54... d2f3  55. g2f1  55... f3d4  56. g6g5  56... c3c1  57. f1g2  57... c1c2  58. g5h5  58... c2b2  59. g4g5  59... e7f7  60. h5h6  60... b2b4  61. h6f6  61... f7e7  62. f2d3  62... b4b3  63. d3f4  63... b3b2  64. g2g3  64... d4e2 The simplest. All rook endgames are drawn $2 Not this one. 65. f4e2  65... b2e2  66. f6f1  66... e2e5  67. g3g4  67... d5d4  68. g5g6  68... e5f5 [%c_effect f5;square;f5;type;GreatFind;persistent;true] 69. f1b1  69... b6b5  70. g6g7  70... e7f7 The king approaches the pawn and the rest is easy. 71. b1e1  71... f7g7  72. e1e6  72... f5d5  73. g4f3  73... d4d3  74. e6e1  74... g7f6  75. e1d1  75... d3d2  76. f3e3  76... f6e5  77. e3e2  77... e5e4  78. d1d2  78... d5d2  79. e2d2  79... e4d4  80. d2c2 