1. d2d4  1... d7d5  2. c2c4  2... c7c6  3. g1f3  3... g8f6  4. e2e3  4... e7e6  5. f1d3  5... b8d7  6. b2b3  6... f8d6  7. c1b2  7... e8g8  8. e1g1  8... b7b6  9. b1c3  9... c8b7  10. d1e2  10... d8e7 A typical position from the Semi-Slav Defense. 11. f1e1  11... c6c5 A little rushed. In these positions it'ss usually better to take a while to advance in the center, and this applies to both sides. 12. c4d5  12... e6d5  13. d3a6 [%c_effect a6;square;a6;type;GreatFind;persistent;true] The bishop exchange favors White, as the d5-pawn becomes a weakness. 13... b7c6 [%c_effect c6;square;c6;type;Inaccuracy;persistent;true] This is wrong, due to White's next move. 14. c3b5 [%c_effect b5;square;b5;type;GreatFind;persistent;true] 14... c6b5  15. a6b5 White has the pair of bishops and pressure on Black's center with a comfortable advantage. 15... e7e6  16. a1d1  16... f8d8  17. d4c5  17... b6c5  18. b3b4 [%c_effect b4;square;b4;type;Interesting;persistent;true] An interesting pawn sacrifice, although not necessary. 18... c5b4 It's better to suffer a pawn up. 19. f3d4  19... e6e4 [%c_effect e4;square;e4;type;GreatFind;persistent;true] 20. f2f3  20... e4e5 [%c_effect e5;square;e5;type;Mistake;persistent;true] This makes things worse. 20...Qh4 and 20...Qg6 are dangerous but better. 21. g2g4 [%c_effect g4;square;g4;type;GreatFind;persistent;true] A great way of defending the h2-pawn while supporting a knight jump to f5. 21... a7a6  22. b5c6  22... a8c8  23. c6b7  23... c8c7  24. b7a6 [%c_effect a6;square;a6;type;Mistake;persistent;true] Missing a forced win. 24... d8a8  25. d1d2 [%c_effect d2;square;d2;type;Mistake;persistent;true] Another big mistake. 25... e5h2 [%c_effect h2;square;h2;type;GreatFind;persistent;true] 26. e2h2  26... d6h2  27. d2h2  27... a8a6 Now Black is a pawn up, but White has enough compensation to equalize. 28. g4g5  28... f6e8  29. d4f5  29... d7f8  30. e1d1  30... a6a2  31. d1d5  31... f8e6  32. f3f4  32... a2a7  33. h2d2  33... g8f8  34. f5d4  34... a7a6  35. d5b5  35... f7f6  36. g5f6  36... e6d4  37. d2d4  37... e8f6  38. d4b4  38... c7e7 The position is completely equal, and almost anything maintains this evaluation. I ask the reader's permission to advance many moves until a moment of real interest. 39. b2d4  39... f8f7  40. g1f2  40... g7g6  41. f2f3  41... a6e6  42. b4b2  42... e7d7  43. b5b8  43... e6e8  44. b8b6  44... f6d5  45. b6a6  45... e8e6  46. a6a8  46... e6e8  47. a8a5  47... e8e6  48. b2h2  48... h7h5  49. h2b2  49... d5f6  50. b2b8  50... d7e7  51. b8c8  51... e7e8  52. c8c5  52... e8e7  53. c5b5  53... f6g4  54. f4f5  54... g6f5  55. b5f5  55... g4f6  56. f5g5  56... e7e8  57. a5f5  57... e8h8  58. e3e4  58... h8d8  59. d4e5  59... d8d3  60. f3f4  60... h5h4  61. g5g1  61... d3d8  62. g1a1  62... d8e8  63. a1a7  63... e8e7  64. a7a8  64... h4h3  65. a8h8  65... h3h2  66. h8h7  66... f7e8  67. h7h2  67... f6e4 [%c_effect e4;square;e4;type;Blunder;persistent;true] This drastic measure is far from necessary. Many moves make a draw in a simple way. 68. f4e4 The endgame of rook and bishop against rook is usually a draw, but the defender's life is not so easy, and there's no shortage of examples to prove this. It never ceases to amaze me that Philidor, during his breaks from serving as a musician at the French court, took the time to analyze the main positions of this endgame with impressive accuracy and without modern computers being able to add a single comma to his findings. That's why I say that Philidor is the greatest genius who ever played chess. But I digress. The addition of a rook to each side makes defense more difficult, and the tablebase shows that the position is winning for White. The details, of course, are very difficult, but it's simply easier for White to create mating themes with an extra rook. Once again, I ask the reader for permission to indicate the moves shown by the tablebase, but to better understand this rare material imbalance, it's better to dedicate a few hours to studying it. 68... e6a6  69. h2h8  69... e8d7  70. f5f8 [%c_effect f8;square;f8;type;Mistake;persistent;true] 70... a6e6 [%c_effect e6;square;e6;type;Mistake;persistent;true] 71. f8d8  71... d7c6  72. d8d5  72... c6b6  73. e4d4  73... e6g6  74. d4c4  74... g6g4  75. e5d4  75... b6b7  76. c4b5  76... e7c7  77. b5a5  77... g4g2  78. d5d6  78... g2g5  79. a5b4  79... g5g4  80. h8d8 [%c_effect d8;square;d8;type;Mistake;persistent;true] 80... c7c6 [%c_effect c6;square;c6;type;Mistake;persistent;true] 81. d6d5  81... c6c1  82. b4a5  82... c1c8  83. d5b5  83... b7c7  84. d4b6  84... c7b7  85. b6e3  85... b7c7  86. e3b6  86... c7b7  87. b6a7  87... b7c7  88. d8d5  88... g4c4  89. b5b1  89... c4c2  90. a5b5  90... c8g8  91. a7b6  91... c7c8  92. b6c5  92... g8g7  93. d5e5  93... c8b7  94. b1f1  94... c2b2  95. c5b4  95... b2g2  96. f1f5  96... g2g1  97. e5d5  97... g1g6  98. b4c5  98... g6g3  99. f5f6  99... g3g6  100. f6g6 [%c_effect g6;square;g6;type;Mistake;persistent;true] Perhaps tired of not being able to make progress, Rodshtein decides to exchange rooks, but now the endgame is a theoretical draw. 100... g7g6  101. d5d7  101... b7c8  102. d7f7  102... c8d8  103. b5c4  103... g6g5  104. c5d6  104... d8e8  105. f7e7  105... e8d8  106. c4d4 