One of the rare continuations. Black's strategy becomes clear: she wants her opponent out of the opening books as early as possible.
1. d2d4  1... g7g6  2. e2e4  2... f8g7  3. c2c4  3... d7d6 Kosteniuk is in a must-win situation, thus the appearance of the KID could have been predicted. 4. b1c3  4... b8d7  5. c1e3  5... g8f6  6. f2f3 Switching to the solid Saemisch line.