So, did you get stumped by the Castle Puzzle in Blue Prince? Don't worry, because everyone else will feel the same way once they reach this particular point of the campaign. It's one of the most complex riddles in the game, since it will lead you to all sorts of locations just to obtain a reward. Our guide has all the details that you need, but be forewarned that there will be major spoilers ahead.
How to solve the Castle Puzzle in Blue Prince - Castle Cipher in Chess Room guide
The Castle Puzzle or Castle Cipher Puzzle has numerous objectives, and we'll break down each of these for you. But first, for those who only stumbled upon this guide and would like to prepare ahead, here's a quick summary:
- The Castle Cipher Puzzle can be found in the Underground. Specifically, it's in the Chess Chamber/Precipice.
- If you bring a Power Hammer, you can smash through the weakened wall to reveal a cipher that has the following letters:
- C _ _
- A _ _
- S _ _
- T _ _
- L _ _
- E _ _
- You then need to look for notes and documents that somehow have a cipher that's formatted the same way--i.e. letters arranged vertically with blanks or gaps. These provide you with clues as to what each segment means.
- To top it all off, some of the hints can only be found in certain areas, such as the Classroom.
- Much later, once you think you've figured everything out, you have to fiddle around with the Chess Powers.
- Then, you have to solve a bunch of Mora Jai color boxes.
- And, finally, you have to go to a specific location by following strict requirements.
Our Blue Prince Castle Cipher Puzzle guide has all the information so you can try to work on this objective on your own. But, if you're stumped or if you just want to know what to do, you can skip ahead to the solutions.
Note: This whole task can take you a while, so just pace yourself and be ready for a doozy. You may also bookmark this guide in case you plan on tackling this objective later.
Castle Cipher Puzzle clues: Part 1 - Letters in various rooms

The first step if you want to solve the Blue Prince Castle Cipher Puzzle is to look for hints in various rooms. These are letters arranged somewhat vertically or via a grid-like structure. Here ...