Spoiler Warning: This is a puzzle late in the game and I'll discuss the mechanics of the puzzle here.

I'm stuck on one puzzle in The Witness, in the sunken ship:

enter image description here

I am confused about how to handle the multiple different color/size hexagons. Usually different size hexagons represent different pitches of background sound effects- Large=Low, Medium=Mid, Small=High. I can't recall ever encountering different color hexagons that are also different sizes.

When I listen to the sounds in the background, I frequently hear water-drop like sound which repeats "Low-High-Mid" over and over. There is also a sound kind of like a harp strumming (that's the best description I can come up with) which has a very fast "High-Mid-Low" pattern, and there is a low horn sound which seems to just have one pitch but die off in volume.

I had thought each color would represent one sound, but no color has all three pitches. I've tried every variation I can think of to solve L-H-M or H-M-L, and solving it with the active line and the ghost line but I can't seem to solve it. I've even tried recording it and looking at the spectral image in Audacity but it's not helping me.

Here is my super high-tech analysis in Audacity:

Analysis in Audacity

  • Bonus: If you hit Alt + Tab to switch away from The Witness without pausing it first (Esc), and wait a few minutes before turning back, you'll hear all sounds mixed together in a rapid tone.
    – iBug
    Feb 28, 2019 at 9:22
  • @iBug My PS4 doesn't have an Alt, Tab, or Esc button. :)
    – Kip
    Mar 2, 2019 at 18:58

3 Answers 3


In my opinion, this is by far the hardest puzzle on the island, and it's only one of two or three where I needed some help when I played the game. You already made it further than I did at the time. :)

There is a fairly thorough guide on Steam for this puzzle, however it's more like an analysis of the puzzle which spoils the puzzle completely. Instead, I'll try to present the solution in a series of hints (in spoilers), in case you want to figure out the latter parts for yourself. The final solution is at the bottom of the answer, of course.

You already know this one, but in case some future reader didn't pick it up in the question: why does the line not move freely? Why are there two entry points?

So yes, this is a symmetry puzzle with an invisible second line. Have you seen symmetry puzzles with two colours and black before?

In case you're trying to figure out where you've seen pink, orange and black before, maybe have a look at the immediate environment. Are those the specific colours you should be looking for?

There is a red lamp illuminating the door. Are you familiar with the colour theory puzzles yet?

If you take red out of pink, you get blue. If you take red out of orange, you get yellow. Does that seem more familiar?

Indeed, on symmetry island we can find such puzzles with a blue and a yellow line, where the yellow line vanishes more and more. In these, the blue line picks up the blue dots, the yellow line picks up the yellow dots, and the black dots can be picked up by either line. Honestly, I think the hint with the red lamp is much harder to get than simply to make the leap "oh this is a symmetry puzzle with two different colours and black, I know what to do with these", but figuring it out does tell you which of the two lines will be the active line. On to the sounds: I'm not sure how to phrase this as a hint, but there are only two relevant sound sequences, not three. One of them is pretty hard to pick up on because it takes a long time to cycle through.

The two pitch sequences are a) the dripping water which you've correctly recognised as Low-High-Mid, and b) the creaking of the ship, which is a very slow loop of four sounds and goes Mid-Low-Mid-High. You'll find that we have two small, three medium and two big dots, so that works out. But now if there are only two sequences, we can't map them to three colours, right? What could they be mapped to instead?

Instead, each sequence corresponds to one of the lines. Hence, the black dots can be used for either sequence, and we either have orange (pink) for dripping (creaking) or the other way round. It's easy enough to figure out which is which from here.

Now that you know which line covers which sequence, it's mostly a matter of finding a symmetric path such that both lines collect the dots in the right order. Pen and paper might help here. The next spoiler block contains the final solution.

sunken ship puzzle solution Source: the Steam guide mentioned above

  • 3
    Thanks for putting each clue in spoiler tags. My problems were: 1) I had forgotten about the rules for multi-color hexagons from symmetry island (I did it so early in the game), and 2) I hadn't figured out the second set of tones I needed to identify. I'm kind of surprised i never figured out the solution by accident, given the number of ways I tried to match the tone of the water drops.
    – Kip
    Mar 30, 2017 at 19:48
  • 1
    I can't do spoilers in comments, so I'll be very vague; in the third sentence of your 6th spoiler, that bit isn't necessary to deduce since it works either way Aug 24, 2021 at 18:56

I've done MY Audacity job :) You'll know why yours didn't work.

Here's the raw image of a portion of sound I've captured (sorry I didn't know how to merge to one channel):

raw image

Here's the same image with marks and labels added:

image with marks and labels

Stuff in the processed image should be very obvious. If not,

The image contains more than 2 full horn sequences. As marked with white squares in the upper part, a horn sequence contains 4 sounds in the order of M-L-M-H. Even if you're unsure where the break is by listening to the sound in game, you should be able to idenfity the long gap between the high horn and the middle horn (its length varies from 35 seconds to 50 seconds, compared to a maximum of 24 seconds for gaps between sounds in the same sequence). For the waterdrops, I marked 3 full sequences with squares and 5 full sequences (and the first drop of the next sequence) with vertical lines. Looking at the lines, the longer break is also easily identified in the first 2 sequences that are marked with lines (not squares).

The rest is already covered in Martin Ender's spoiler tags so there's no need for me to repeat them.

You can download the part of the audio that's inside the view of the image here. (File size alert!)

P.S. Audacity is a good software utility for this game :)


I spent so many attempts trying to solve this puzzle that wanted to search for hints in the internet for the first time in the whole journey. Luckily I decided to do the "challenging room" (the one with gramophone) first, and in the room I learned the rules of the 2-3 color hexagons very well. To clearly understand the rules of multicolor hexagons is the key. I also tried to listen the sound of drops, but by the end of the day it wasn't needed. I surprised myself how fast I solved the ship puzzle after the challenge room, almost from the 1st attempt.

Basically you don't need to do deep analysis of the sounds, colors etc. The hexagons are placed in a way that there are only few combinations where the lines can be drawn without breaking the rules. Just trying them will allow to solve it in a minutes, the key is understanding the rules.

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