All Quartz Puzzle Solutions in Resident Evil Requiem (RE9)

Complete solutions for all three Quartz Puzzle Boxes in the Rhodes Hill Care Center. The Sun, Moon, and Star puzzles each reward a Quartz crystal — collect all three to unlock the Central Hall door and progress the main story. This guide covers exact button sequences, locations, and where to find the visual clues.

How Quartz puzzles work

Each Quartz Puzzle Box requires you to enter a 4-symbol sequence using three button options: Sun, Moon, and Star. The correct sequence is found by examining photos and visual clues scattered around the relevant room.

// PUZZLE MECHANICS

1. Each puzzle box has a "theme symbol" — Sun, Moon, or Star — corresponding to the photos that contain its solution clue.
2. Look for photos with that symbol in the puzzle room. The order of objects in the photos tells you the input sequence.
3. Solving each box rewards 1 Quartz — collect all 3 to unlock the Central Hall.
4. Wrong inputs do not penalize you — you can keep trying. But getting it right first try saves time on Insanity runs.

Moon Quartz Box // CHAIRMAN'S OFFICE

The first Quartz Puzzle Box you'll encounter, located in the Chairman's Office on the West Wing's second floor. The puzzle box sits on the desk near the window.

// STEP-BY-STEP WALKTHROUGH

1. Enter the Chairman's Office on the West Wing 2F.
2. Walk around the room and examine all photos on the walls and desk.
3. Filter for photos with the Moon symbol — these are your clues.
4. Approach the puzzle box on the desk.
5. Input: Moon → Sun → Star → Moon
6. The box opens. Take the Moon Quartz.

Sun Quartz Box // LEAD RESEARCHER'S OFFICE

The Sun Quartz Box is in the Lead Researcher's Office, also on the West Wing's second floor. This puzzle requires an extra step — you must first acquire Corrosive Acid from the Conference Room to unlock the puzzle box's outer lock.

// STEP-BY-STEP WALKTHROUGH

1. Enter the Conference Room. Find the backroom — it has a hanging lamp shining onto a small bottle.
2. Pick up the Corrosive Acid.
3. Return to the Lead Researcher's Office. The puzzle box is in the upper-left corner.
4. Use the Corrosive Acid on the lock to dissolve it.
5. Examine all photos in the office, focusing on those marked with the Sun symbol.
6. Input: Star → Sun → Moon → Sun
7. The box opens. Take the Sun Quartz.

Star Quartz Box // VIP SUITE

The trickiest of the three. The Star Quartz Box uses an hourglass-based clue instead of photos. You must physically manipulate an hourglass to reveal the solution.

// STEP-BY-STEP WALKTHROUGH

1. Enter the VIP Suite (West Wing 2F).
2. Find the hourglass on the desk near the window.
3. Examine it. The screws on the wooden frame can be removed.
4. Remove all screws to free the hourglass from its mount.
5. Flip the hourglass upside-down. The sand falls and reveals symbols on the bottom face.
6. Memorize the symbol order shown in the sand (commonly Sun-Star-Moon-Star).
7. Approach the Star Puzzle Box.
8. Input the sequence revealed by the hourglass.
9. Take the Star Quartz.

Unlocking the Central Hall door

Once you have all three Quartz crystals (Sun, Moon, Star), return to the Central Hall door on the West Wing 1F.

1. The door has three slots — one for each Quartz.
2. Insert each Quartz into its matching slot.
3. The door unlocks. Story progression continues into the Care Center's restricted areas.

Bonus: The Final Puzzle (NG+ only)

After completing the main story, RE9 unlocks a hidden multi-step puzzle that uses elements from across the entire game. The Final Puzzle takes place in the same Lead Researcher's Office that housed the Sun Quartz Box, but only becomes accessible on a New Game+ run.

// FINAL PUZZLE OVERVIEW

1. Get Marie's Doll from the Collection & Testing room in the Care Center Basement.
2. Store Marie's Doll in Grace's item box immediately — it carries between playthroughs.
3. Decode the Severed Hand RNA sequence using the Laser Microscope in the Blood Lab. The sequence is GGC-AAG-AUA-ACG-UGU-CAU.
4. Complete the game once, then start NG+.
5. Progress until you rescue Emily from the Care Center Basement.
6. Re-analyze the Severed Hand on the Laser Microscope. The Sun Puzzle in the Lead Researcher's Office becomes interactable again.
7. Bring Emily and Marie's Doll to the Sun Puzzle.
8. Input the alternate sequence: Sun-Sun-Star → Sun-Moon-Star → Sun-Moon-Sun → Moon-Star-Moon.

The Final Puzzle solution rewards a special ending dialogue and Easter egg, plus closes a major story thread between Marie, Emily, and "The Girl" antagonist. Highly recommended for completionists.

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