Originally posted by rookorbycrook
black plays nf6 resulting in doubled pawns ? not sure about that mate... after nxe4 bf5 looks plausible
Yes, 4...Bf5 is the classical line. However, her coach may have wanted to get out of those lines that players at our level had memorized and knew the best moves as far as this:
I think the best followup for the alternate line that she played after 5.Nxf6 is 5...exf6 instead of 5...gxf6, because the bishop is free to move and the kingside pawns are still strong. However, her coach may have prepared something else that we will never know. Possibly an attack on the open knight file. Anyway, since I did not play perfectly either she got a winning advantage, but did not have the experience at that time to finish the job.