What's the safe code solution and how do you solve all Safehouse puzzles in Call of Duty: Black Ops 6? Some parts of the campaign involve opening safes to earn money for Safehouse upgrades, with the most important one found inside the Safehouse itself. In this Call of Duty: Black Ops 6 guide, we shall reveal the safe code solution and how to solve all Safehouse puzzles. Doing so unlocks The Puzzles, Mason Trophy.

What's the Safe Code Solution and How Do You Solve All Safehouse Puzzles in Call of Duty: Black Ops 6?

Call of Duty: Black Ops 6: Safe Code Solution and How to Solve All Safehouse Puzzles Guide 1
Image: Push Square

In between missions during the Black Ops 6 campaign, you'll repeatedly return to a Safehouse where you can spend the money you've accrued. Your first opportunity to go there takes place during The Rook: Arrival mission. You can explore the Safehouse, and on the second floor you'll find a locked safe that requires a number combination to open. Below you shall discover the safe code solution and how to solve all Safehouse puzzles, with the latter being the steps you take to work out the combination.

Black Ops 6: Basement Generator Puzzle Solution

To start working towards obtaining the safe code, you'll first need to go down to the basement. From the Operations Room where Woods is, take a left and then immediately turn left again before entering the room ahead of you. There's a door in the corner, and on the other side is another door on the right leading down to the basement. In the room on the right, you can read a note explaining the generator situation.

To get the basement generator up and running, follow these steps:

  • Interact with the Fuel valve so the dial to the left of it points upwards to 50.
  • Interact with the Boiler valve twice so the dial below it points down to 0.
  • Turn the Pilot on so the dial points right.
  • Return to the Boiler valve and turn it twice again so the dial points to 100.
  • A bell will ring and a green light will be displayed on the Pilot, indicating you've solved the puzzle.

Black Ops 6: Piano Puzzle Solution

You now need to return to the first floor and then find the piano, which is in the corner of the room just to the right of the Operations Room. On the table opposite it, you can pick up the Blacklight. With the Blacklight turned on, you can find the following notes painted onto the walls:

  • Mn
  • Pe
  • Cn
  • Ao
  • Pe

Using this sequence, you now have the piano keys you need to press in order. Please see the image below for an easy-to-follow guide to the piano puzzle solution:

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Image: Push Square

Black Ops 6: Keypad Code Solution

Successfully solving the piano puzzle unlocks a secret door next to the instrument, which leads down to another part of the basement. Along the corridor and on the right will be a locked door with a keypad attached to it. Interact with the keypad and you'll learn you need to use the Blacklight again to work out the correct keypad code.

You need to apply some trial and error here, because the keypad code is random for every player. Here are some tips to help you solve the keypad code:

  • Turn the Blacklight on and look for the thumbprints on the numbered keys.
  • If you see lots of thumbprints on a certain key, that number is guaranteed to be part of the keypad code.
  • Keys with fewer thumbprints have a chance of being part of the correct keypad code, but it's not guaranteed.
  • It's possible for keys covered in thumbprints to appear in the keypad code more than once.

Now you've found the potential numbers that form the keypad code, input them. After doing so, if a number is green, it's in the correct place in the keypad code. If it's yellow, it's part of the keypad code but in the wrong place. If it's red, it's not part of the keypad code at all. You now need to trial and error your way to figuring out the correct keypad code using the coloured hints. For example, our keypad code was 60898, but there's a good chance you'll need something different.

Black Ops 6: Computer Hack Solution

Having entered the correct keypad code, you'll enter another room containing a computer you need to hack. Using the letter-to-number conversion guide at the bottom of the screen, you'll need to enter the correct letters in accordance with the sequence displayed at the top. You'll need to input 4 words in total, and the order of them is random. The letter-to-number conversion is also randomised every time, so there's no definitive answer — you'll need to work it out yourself using the guide at the bottom of the screen.

For example, we needed to spell out Room, Holding, Open, and Bunker, in that order. Once you've inputted the correct words, return to the corridor and head right and enter the room at the end on the left. You'll need to pick the lock, which is done by holding the right thumbstick when it vibrates three times in the correct position. On the other side will be a key.

Black Ops 6: Radio Message Solution

Once you have the key, return to the corridor and unlock a door opposite the keypad from earlier. In here, you'll need to correctly tune a radio. You need to adjust the amplitude and frequency dials to match the sound waves together. When you do this, a radio broadcast will play, which repeats over and over again.

The broadcast you receive is random, taken from a large pool, so there's no single answer that can be given to the radio signal frequency puzzle. What you need to do is carefully listen to the message and pay attention when they mention individual objects — like a lamp, calendar, or chalkboard — as these items also appear in the room you're in. There'll always be 4 objects they mention, and you need to memorise them and find them in the room you're in, as there are numbers placed next to them when you use the Blacklight.

The 4 numbers you get at the end are the overall safe code. Go to the safe on the second floor and input your personal code to open it.

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Image: Push Square

Black Ops 6: Safe Code Solution

The safe code you need is a randomised 4-digit combination, which you can only obtain by following the steps above in the Safehouse. When you listen to the radio message in the basement, you'll need to match the objects you get with the numbers displayed throughout the room you're in when using the Blacklight. It seems even what numbers you get from the objects is randomised too, so it's incredibly difficult to simply brute force the safe code. You must follow the steps above to work out your personal code.

For opening the safe, you'll earn $1,000, the Case Cracker Blueprint, and unlock The Puzzles, Mason Trophy.


Did you find our guide covering the safe code solution and how to solve all Safehouse puzzles in Call of Duty: Black Ops 6 useful? Let us know in the comments below.