[%c_effect g2;square;g2;type;Inaccuracy;persistent;true] This invites Black's plan.
1. e2e4  1... c7c6  2. g1f3  2... d7d5  3. b1c3  3... c8g4  4. h2h3  4... g4f3  5. d1f3  5... e7e6  6. d2d4 White has many alternatives here. 6... d5e4  7. c3e4 A pawn sacrifice that is suitable for blitz but maybe not for a game in classical control. 7... b8d7  8. f1d3  8... g8f6  9. c2c3  9... f6e4  10. d3e4  10... d7f6  11. e4c2  11... d8d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] This is the point. White would prefer to keep queens on the board, so Black's move is unpleasant to face. 12. f3g3  12... f6h5  13. g3e3  13... h5f6  14. e1g1  14... f8d6  15. c2b3  15... d5h5  16. b3d1  16... h5f5  17. g2g4 It's always difficult to decide on the advance of the kingside pawns, especially when you have more solid options. 17... f5a5  18. e3f3  18... a5c7 