There and Back Again

There and Back Again
Identifier:	East 3-3
Area:	Eastern Wetlands
Puzzle Type:	Main
Previous Puzzle:	Energy Maintenance
Next Puzzle:	Refraction

There and Back Again is the third main puzzle in the Eastern Wetlands area of The Talos Principle 2.

Puzzle elements

• Blue door
• Connector
• Emitter
• Inverter
• Pressure plate
• RGB converter

Overview

As you enter the puzzle, you find a red emitter, a red receiver, a connector, and a green receiver. The red receiver controls access to another area to the left. The green receiver controls access to the progress wheel.

In the area you enter on the left, you find a twisting passageway, with a blue receiver immediately on the wall on the left. The first room in that passageway is blocked off by a blue door deactivated by a pressure plate. There is an inverter available. At the end of the passageway is another small room with an RGB converter inside that is blocked off by a blue door deactivated by a red receiver.

Hints

A basic hint:

[ hint ]

Since the name of the puzzle is There and Back Again, you will have to think about going entirely to some area, and then returning.

If you're struggling to get started:

[ hint ]

Your first job is to take all your equipment -- all of it -- and move it to the internal area

If you're struggling to keep the doors open:

[ hint ]

A receiver can remain activated with multiple lasers. This is useful if you need to remove some equipment that was previously powering it. Also double check if you really need to keep the door open.

Solution

[ solution ]

• 
  Use the Connector to to open the first door. Place it in the corner of the room.
• 
  Take the Inverter and use it to connect the red Emitter to the blue Receiver on the other side of the first door.
• 
  Take the Connector and connect the blue Emitter to the blue Receiver. Place it down on the Pressure Plate.
• 
  Take the Inverter and connect the blue Connector to the red Receiver by the RGB Converter.
• 
  Take the RGB Converter and bring it out in the first room.
• 
  Take the Inverter and connect the red Emitter to the blue Receiver.
• 
  Take the Connector and connect the red Emitter to the red Receiver on the other side of the door.
• 
  Connect the Inverter to the red Emitter and use the RGB Converter to connect the red Emitter and the blue Inverter to the green Receiver.

Trivia

The name There and Back Again is a reference to the alternate title for J. R. R. Tolkien's book, The Hobbit.