The Complete Momento Rubik's Cube Puzzle Solution (Chromatic Labyrinth)

The Momento Rubik's Cube puzzle, known in-game as the Chromatic Labyrinth, is solved by aligning symbols on its faces to match three specific paintings found within the Archivist's Study. You do not solve it by matching colors. The correct sequence to follow—Slate Blue, then Ochre Yellow, then Deep Indigo—is derived from a note on the Archivist's desk that speaks of a progression from sorrow to oblivion.

This puzzle is a critical gate in the Blackwood Manor chapter. Solving it grants access to a hidden area and a key item required for story progression. While its appearance is familiar, its mechanics are entirely lore-driven, making it a common roadblock for players expecting a traditional Rubik's Cube solution.

01

Where is the Chromatic Labyrinth Located?tag

You'll find the Chromatic Labyrinth deep within the main floor of the Blackwood Manor level. After navigating the collapsing grand staircase and the shifting hallways, you will enter the Archivist's Study. It's a large, circular room lined with towering bookshelves, a large orrery in the center, and an imposing oak desk.

The puzzle itself rests on a marble pedestal directly opposite the entrance, illuminated by a single, focused beam of moonlight from a skylight. When you first approach it, it will appear inert and cannot be manipulated until specific conditions are met.

02

What Do You Need Before You Start?tag

The puzzle is dormant until you've collected three key items scattered throughout Blackwood Manor. These are called Memory Fragments, and they serve as the catalyst that activates the Labyrinth. Without all three in your inventory, you won't be able to interact with the cube on the pedestal. You must find these first.

Here are the three fragments and their precise locations:

Once you have collected the Moth, Hourglass, and Key fragments, return to the Archivist's Study. Approaching the pedestal will now trigger a short cutscene where the fragments are absorbed by the cube, causing its symbols to glow faintly. You can now interact with it.

03

The Step-by-Step Solutiontag

Solving the Chromatic Labyrinth is a three-phase process. The solution lies in observing your surroundings—specifically, the three large paintings hanging on the study's curved walls. Each painting has a dominant color and features three distinct symbols. You must orient a face of the cube to display the three symbols from a single painting, then repeat the process in the correct order.

Step 1: Decode the Archivist's Notetag

First, inspect the large oak desk. You'll find a hastily written note. It reads: "My collection is a map of my descent. From sorrow's twilight, to obsession's golden grasp, to the cosmic oblivion at the end of all things." This is the master clue.

It directly tells you the order in which to approach the paintings:

1. "Sorrow's twilight" refers to the moody, blue-hued painting.
2. "Obsession's golden grasp" refers to the sickly, yellow-ochre painting.
3. "Cosmic oblivion" refers to the deep, indigo painting of the night sky.

Step 2: Solve the First Face (The Mourning Garden)tag

Locate the painting dominated by shades of slate blue. This piece, titled "The Mourning Garden," depicts a somber scene. Identify its three key symbols:

• Weeping Willow
• Raven
• Sundial

Now, interact with the cube. Rotate its layers until you have a single face showing the Weeping Willow, Raven, and Sundial symbols simultaneously. The position of each symbol on the face doesn't matter, only that the three are present. Once you succeed, you'll hear a heavy click. That face will lock in place and glow with a faint blue light.

Step 3: Solve the Second Face (The Alchemist's Folly)tag

Next, find the painting drenched in ochre yellow. This is "The Alchemist's Folly." Its three symbols are:

• Ouroboros (snake eating its own tail)
• Beaker
• Open Palm

With one face already locked, your rotational options are slightly more limited. Manipulate the remaining layers to bring the Ouroboros, Beaker, and Open Palm symbols onto a single new face. Upon completion, a second click will sound, and this face will glow yellow.

Step 4: Solve the Final Face (The Celestial Cartographer)tag

The final painting is unmistakable—a swirl of deep indigo and starlight titled "The Celestial Cartographer." The last set of symbols you need are:

• North Star
• Sextant
• Spiral Galaxy

This final step is usually the simplest, as most of the cube is now locked. A few quick twists should be all you need to align the North Star, Sextant, and Spiral Galaxy on the last unsolved face. A final, resonant thud will echo through the room as the entire cube glows with a brilliant white light.

04

What Happens When You Solve It?tag

Completing the Chromatic Labyrinth is a major turning point in the chapter. The moment the puzzle is solved, the ground will shake, and the towering bookshelf directly behind the pedestal will grind open, revealing a hidden, dust-choked passage.

This is your reward:

• A New Path: The secret passage leads to the Sanctum of Echoes, a critical story location where you'll confront a major revelation about the protagonist's past.
• The Archivist's Key: The solved cube will levitate slightly, and the Archivist's Key will materialize on the pedestal beneath it. This key is required to unlock the final door of the Blackwood Manor chapter.
• Lore Unlocked: A new entry is added to your journal, containing the Archivist's final, lucid thoughts and clarifying his connection to the manor's curse.

05

The Secret "Shattered Memento" Solutiontag

For players chasing the game's elusive true ending, there is an alternate, non-obvious solution to the puzzle. This path will lock you out of the standard reward, so it's a choice with consequences.

To discover this path, you must first have the "Ocular Lens" item from the observatory. When you examine the back of the "Celestial Cartographer" painting with the lens, you will find a small inscription: "The end is the beginning." This hints that you should reverse the solution order.

To get the secret reward, solve the puzzle faces in the opposite sequence:

1. Indigo (The Celestial Cartographer)
2. Yellow (The Alchemist's Folly)
3. Blue (The Mourning Garden)

Solving the puzzle this way causes the cube to crack and shatter. It does not open the secret passage. Instead, you can collect the Shattered Memento, one of five collectibles needed to unlock the game's true ending. This forces you to find an alternate, much more dangerous route through the manor's collapsed catacombs to proceed, making it a high-risk, high-reward choice for completionists.

06

Frequently Asked Questionstag

Why can't I interact with the Rubik's Cube in the study? You are missing one or more of the three required Memory Fragments: the Moth, Hourglass, and Key fragments. The puzzle remains inert until all three are in your possession and you approach the pedestal.

Do the colors on the cube matter at all? No. The colors on the cube's individual squares are purely aesthetic and meant to misdirect players. The solution is based entirely on matching the symbols from the paintings, not creating solid-colored faces.

What happens if I solve the faces in the wrong order? If you lock in a face in the incorrect sequence (e.g., solving the yellow face first), the cube will emit a harsh buzzing sound and reset completely. You will have to start the solution over from the first face.

Is the Shattered Memento required to beat the game? No, it is not. You can finish Momento by following the standard puzzle solution and obtaining the Archivist's Key. The Shattered Memento is only necessary if you are specifically trying to achieve the game's secret "True Ending."

A Final Wordtag

The Chromatic Labyrinth is a perfect microcosm of Momento's design philosophy. It uses a familiar object—a Rubik's Cube—to defy player expectations, forcing them to engage with the game's environment and lore to find the solution. It's not about algorithms or speed; it's about paying attention to the story the world is telling you.