For the time being Ju doe snot want to put a rook on  e1 and swap the major pieces. She takes away the active squares of the  black knights instead.
1. g1f3  1... d7d5  2. g2g3  2... c7c6  3. f1g2  3... c8g4  4. e1g1  4... b8d7  5. h2h3  5... g4h5  6. d2d4  6... e7e6  7. c2c4  7... f8e7  8. c4d5  8... e6d5  9. b1c3  9... h5f3  10. e2f3 Although the computer disapproves this novelty it has a lot of merits. First, it breaks the symmetry, which is good for the bishop pair. Second, it opens the  e-file for the white rook, where especially pleasant is the outpost on e5. And last, but not least- every novelty has psychological value. 10... g8f6  11. h3h4 Following Steinitz's footprints. A couple of  centuries ago the first world champion explained how to limit the knights  when owing the bishop pair-use your rook pawns! 11... e8g8  12. g2h3  12... d7b6  13. d1d3  13... f8e8 