Blue Prince: How To Power The Laboratory Machine

Blue Prince's Laboratory puzzle: A comprehensive guide to unlocking the Black Bridge Grotto

Blue Prince's Laboratory puzzle is notoriously challenging. This guide will walk you through powering the machine, deciphering the periodic tables, and activating the Boiler Room to obtain the valuable Black Bridge Grotto Permanent Addition, granting daily offline terminal access.

Why Solve the Laboratory Puzzle?

Completing the Laboratory puzzle unlocks the Black Bridge Grotto. This Permanent Addition provides daily access to a single offline terminal, simplifying your connection process between the Laboratory, Office, Security, or Shelter.

Powering the Laboratory Machine

To power the Laboratory machine, you must access both the Laboratory and Boiler Room on the same day. Ideally, these rooms should be directly connected, but the manor's layout changes. Alternatively, use rooms with ceiling steam vents to transfer steam:

• Archives
• Dark Room
• Gymnasium
• Locker Room
• Passage Way
• Pool
• Pump Room
• Security
• Workshop

Once connected, proceed to the Boiler Room.

Activating the Boiler Room

The Boiler Room's objective: direct steam from the green tanks to the upper-floor control panel. The room features:

Component	Description
Central Control Panel	Upper floor; activates steam flow. Blue dots indicate active tanks.
Three Green Tanks	Two on the lower floor, one on the upper floor; release steam when valves are opened.
Two Red Pipes	Lower floor; rotate to control steam flow.
Two Blue Switches	One on each floor; reroute steam.
Elevator	Upper floor; activated by steam connection.

Boiler Room Activation Steps:

Step 1: Activate Ground Floor Tanks

Open the first tank's valve. Rotate the I-shaped red pipe vertically, connecting it to the Y-shaped pipe. Configure the Y-shaped pipe to connect to: the I-shaped pipe, the conveyor belt, and the pipe leading to the upper floor. Once the conveyor reveals the second tank's valve, stop the conveyor, open the valve.

Step 2: Activate the Elevator

Rotate the I-shaped pipe horizontally, connecting it to the pipe near the elevator. Flip the lower blue switch to power the elevator.

Step 3: Activate the Third Tank

Take the elevator up. Activate the third tank's valve. Flip the upper blue switch to direct steam to the control panel. Flip the rusty switch to open the barred door.

Step 4: Connect the Pipes

Return to the lower floor. Rotate the I-shaped pipe vertically. Rotate the Y-shaped pipe to connect to: the I-shaped pipe, the control panel, and the pipe leading to a blue box. This opens the bridge. Flip the upper blue switch to direct steam to the control panel.

Step 5: Activate the Boiler Room

Three blue dots should illuminate. Press "Activate." Ensure steam vents leading to your Laboratory (or connected room) are blue.

Solving the Laboratory Periodic Table Puzzle

The powered machine glows blue. Use the numbered periodic table and the standard periodic table to decipher the code (PuSHThReEuPaFTeRnINe = Push three up after nine). Flip lever #9 up, then lever #3.

You've unlocked the Black Bridge Grotto!

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