How did the Female Titan cut Eren's titan form?


After she killed the Levi squad, Eren transformed to fight the Female Titan.
In Chapter 29, _Hammer_ , it looked like Eren was having the upper hand, but
then the Female Titan turned around, and with one horizontal motion, cut
Eren's titan form's head in half.

How did that happen? That part wasn't clear in the anime nor the manga. Did
she take a tree and smacked him? Did she harden her hand and hit him?

[![Female Titan
Wins](https://i.stack.imgur.com/cWvhbm.jpg)](https://i.stack.imgur.com/cWvhb.jpg)




See page 33, Chapter 32, "Compassion" from the manga.

The previous page followed discussion over Annie as a suspect in being the
Female Titan. Mikasa asks Eren, having fought the Female Titan, if anything
reminded him of Annie at all. Eren then remembers Annie's stance as a parallel
to the Female Titan moving from that same stance into her kick.

The [stance](https://i.stack.imgur.com/f9mrC.jpg) resembles [Annie's
style](https://i.stack.imgur.com/BP2tt.jpg) demonstrated in [Chapter 17:
Illusions of Force](https://i.stack.imgur.com/k3ahV.png)

The text is spoken by Mikasa to convince Eren that deep down he knows first
hand how close to the similarities are.

![Real Answer Photo](https://i.stack.imgur.com/nyR0T.jpg)




See page 33, Chapter 32, "Compassion" from the manga.

The previous page followed discussion over Annie as a suspect in being the
Female Titan. Mikasa asks Eren, having fought the Female Titan, if anything
reminded him of Annie at all. Eren then remembers Annie's stance as a parallel
to the Female Titan moving from that same stance into her kick.

The [stance](https://i.stack.imgur.com/f9mrC.jpg) resembles [Annie's
style](https://i.stack.imgur.com/BP2tt.jpg) demonstrated in [Chapter 17:
Illusions of Force](https://i.stack.imgur.com/k3ahV.png)

The text is spoken by Mikasa to convince Eren that deep down he knows first
hand how close to the similarities are.

![Real Answer Photo](https://i.stack.imgur.com/nyR0T.jpg)

