1. g1f3  1... d7d5  2. e2e3  2... g8f6  3. c2c4  3... c7c5  4. c4d5  4... f6d5  5. b1c3  5... b8c6  6. f1b5 This line is coming into the spotlight lately. White is playing in the spirit of the Four Knights Sicilian. 6... d5b4 Not the strongest option in the Sicilian, but perhaps it will work here $2 7. a2a3  7... b4d3  8. e1e2  8... d3c1  9. a1c1 Black won the bishop pair but at the price of a serious development deficit. 9... c8d7  10. d2d4 Certainly $1 Harika wants to open up the position with her better prepared pieces. 10... c5d4 All of this has been seen before, and Black did well in the predecessor. Kosteniuk was, however, out of luck today. 11. b5c6 [%c_effect c6;square;c6;type;GreatFind;persistent;true] A strong novelty, which practically wins material by force. The bishop pair would not last for long; neither will Black's queenside. 11... d7c6 