A text guide on how to complete the puzzle:
- Select the blades by pressing the Left Arrow.
- Walk forward by using the navigation assist.
- Aim by holding L2, and shoot an arrow by pressing Square.
- Keep holding the aim button, Move the right stick left twice, and shoot one more arrow.
- Keep moving the right stick to the left twice and shoot an arrow until you hear the heavy attack confirm sound.
- When you hear the heavy attack sound, throw the blades by pressing R2, and you will set fire to the chain you have made so you can cross the river.