Besides the Gallery Puzzles and File Cabinet Keys, figuring out how to solve the Picture Puzzle in Blue Prince is one of the most challenging and time-consuming puzzles. That’s because the Picture Puzzle in Blue Prince involves solving a 44-letter secret code. Each room in the house contributes to this puzzle, and solving it is key to uncovering the hidden 46th room and unlocking several safes.
This guide will explain how to solve the Picture Puzzle in Blue Prince and reveal the secret code in Blue Prince that ties everything together.
How to Solve the Picture Puzzle in blue Prince
Picture Puzzle in Blue Prince
Secret Code in blue Prince
How to Solve the Picture Puzzle in Blue Prince
The Picture Puzzle in Blue Prince is tied to the artwork found in each of the 46 rooms. Each room has a specific piece of artwork that remains consistent regardless of the type of room occupying that space. These artworks are the key to solving the puzzle, as they correspond to letters on the map.
When you enter the Study, you’ll find a breakdown of how the puzzle works. Each square on the map is connected to a letter, which is determined by the artwork in that room. The artworks are paired with words that share all but one letter. The letter that differs between the two words is the one assigned to that room on the map.
For example, in the Entrance Hall, there is a picture of a face card from a standard deck of playing cards and an ace card. The two words associated with these artworks are FACE and ACE. The letter for this room is F, as it is the letter that differs between the two words.
All 44 Answers to the Room Letter Puzzles

If you’re stuck on specific rooms, here’s how the puzzle works across the entire house. The map is divided into rows, starting with the bottom row (Row A, where the Entrance is located) and moving up to the top row (Row G, where the Antechamber is located).
Each room’s letter is determined by the unique difference between the two associated words.
A1-A5 Pictures





B1-B5 Pictures





C1-C5 Pictures





D1-D5 Pictures





E1-E5 Pictures





F1-F5 Pictures





G1-G5 Pictures





H1-H5 Pictures





I1-I5 Pictures




44-Letter Secret Code in Blue Prince

Once you’ve identified all 44 letters from the rooms, they form a sentence made up of ten words. The secret code in Blue Prince is:
If We Count Small Gates, Eight Dates Crack Eight Safes.
This message provides a crucial hint for unlocking safes throughout the house. It means that if you include the orchard’s gate, you’ll be able to open eight locks using four-number date codes. The secret code in Blue Prince is directly tied to the safes scattered throughout the house. Each safe requires a four-number date code to unlock.
And that’s how to solve the Picture Puzzle in Blue Prince. For more Blue Prince guides, stay tuned to RetroNoob.