Test Site Intel

Test Chamber 13: Place portals as shown in the image. Use a portal to move the laser sideways and a time portal to send it into the future. Enter the time portal to progress. In the future, rearrange portals to direct the laser into the target and exit the chamber.

Test Chamber 14: Travel to the present. Summon a reflector cube and position it as shown. Use a portal to bring a laser through the first node, then reflect it into the next two nodes. Travel to the future. Use portals to bring a laser into the present through the time portal, ensuring it hits the node. Retrieve the reflector cube from the future and bring it to the present. Position the present reflector cube to hit all three nodes. If necessary, return to the future to retrieve the future reflector cube and bring it back to the present. Finally, place the future reflector cube to reflect the laser into the receiver, completing the chamber.

Test Chamber 15: Go through the particle field to the left. Place a portal where the laser hits the wall and a time portal on the opposite wall. Travel through the time portal to the future to bypass the particle field. Return to the present using another time portal on the other side of the field. Place a portal on the upper wall to direct the laser to the first receiver. Travel to the future and place a portal on the small wall in the laser room to hit the receiver. Return to the present. Stand on the elevating platform powered by the first receiver and node. Place a time portal behind the node to raise the platform further, allowing you to summon a reflector cube. Place this cube on the lip above the second receiver. Travel to the future. Retrieve the future reflector cube and bring it to the present by placing a time portal in the laser room. Position the cube to reflect the laser into the second receiver through the node. To reach the other side of the particle field without going through it, use an existing portal or a time portal. In the present, on the other side of the particle field, climb the stairs and use a portal on the upper wall to hit the third receiver. Move the reflector cube onto the switch to complete the chamber.