This article is part of a directory: Hogwarts Legacy: Complete Guide & Walkthrough
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As Marunweem Lake is a large Region to explore in Hogwarts Legacy, it’s not weird to find many hidden features in it, including Treasure Vaults. Similar to the Poidsear Coast Region, players will find some tricky puzzles in Marunweem Lake, like the chess puzzle.

Wizard Chess is a common game among the Wizarding folks and Hogwarts Legacy managed to integrate it as a puzzle in a few Treasure Vaults. The puzzle demands protagonists to make one final move to win the match. This article will help locate all Treasure Vaults in Marunweem Lake as well as how to solve their puzzles.

RELATED: Hogwarts Legacy: How To Solve All Merlin Trials In Marunweem Lake

Marunweem Lake Treasure Vaults And How To Open Them In Hogwarts Legacy

marunweem lake chess puzzle in hogwarts legacy

It’s possible to find 11 Treasure Vaults within the Marunweem Lake Region.

Treasure Vault #1

marunweem lake treasure vault location 1 in hogwarts legacy

Head to the Marunweem Ruins Floo Flame to find the first vault south, on the top of the mountain across the waypoint. It’s possible to either fly up or climb the slope to reach it. Once players are standing next to a Merlin Trial in Hogwarts Legacy, go north to find the vault’s entrance. To get the treasure, Alohomora II must be used to unlock the door.

RELATED: Hogwarts Legacy: How To Solve All Merlin Trial Puzzles

Treasure Vault #2

marunweem lake treasure vault location 2 in hogwarts legacy

The second vault is found east of the Marunweem Ruins Floo Flame. Walk around the mountain to find the entrance near the shore. Use Depulso to get inside and loot the treasure.

Treasure Vault #3

marunweem lake treasure vault location 3 in hogwarts legacy

Return to the Marunweem Ruins, but this time, go west to find the next vault in the waters. Once inside, use Accio and pull the lever to unlock the treasure room.

Treasure Vault #4

marunweem lake treasure vault location 4 in hogwarts legacy

The fourth vault is west of the Coastal Mine Floo Flame. Defeat the Loyalists guarding the cave then destroy the woods blocking the entrance. Go inside to claim the treasure.

Treasure Vault #5

marunweem lake treasure vault location 5 in hogwarts legacy

The fifth Treasure Vault is northeast of the Tower Tunnel Floo Flame. Since players can’t summon any mount in this area, take the path to the east until an enemy camp appears. Next, turn southwest to find the vault’s entrance.

Solving the puzzle inside requires spamming the mechanism with Depulso until the pile of rocks forms a platform on the other side of the room.

Treasure Vault #6

marunweem lake treasure vault location 6 in hogwarts legacy

Teleport back to the Tower Tunnel waypoint and take the path southeast to find the entrance. There are no puzzles, so head inside and grab the chest.

Treasure Vault #7

marunweem lake treasure vault location 7 in hogwarts legacy

To reach the seventh Treasure Vault, fly south from the Coastal Mine Floo Flame.

marunweem lake lever puzzle in hogwarts legacy

Get inside and use Revelio to mark the four key levers and pull them via Accio. Do note that it’s not always the same four levers as the order is random.

Treasure Vault #8

marunweem lake treasure vault location 8 in hogwarts legacy

The next vault is northeast of the Marunweem Lake Floo Flame in Hogwarts Legacy. Approach the vortex in the waters and dive to reach the eighth vault. Keep swimming to find a closed gate, which can be opened by pulling the lever found south using Accio. Proceed forward to see two treasure chests.

Treasure Vault #9

marunweem lake treasure vault location 9 in hogwarts legacy

Summon a broom or a flying mount and fly southeast up the mountain from the Marunweem Lake Floo Flame to find the ninth vault. Head inside to claim the treasure chest.

Treasure Vault #10

marunweem lake treasure vault location 10 in hogwarts legacy

Return to the Marunweem Lake waypoint and fly southeast to find the tenth vault at the base of the mountain. To open the entrance, head northwest and defeat the Poachers to unlock the cage with the cube. Sadly, Alohomora III is crucial to open it, so collecting Demiguise Statues is a must to reach this vault. Upon unlocking the cage, guide the enchanted cube back to its platform and cast Glacius. One inside, it’s possible to solve this chess puzzle using two solutions.

Chess Puzzle Solution 1 - Rook

marunweem lake chess puizzle location 1 in hogwarts legacy
  • Turn southeast to find a cauldron.
  • Use the Transformation spell to make it a Rook chess piece.
  • Cast Wingardium Leviosa and move it to B4.

Chess Puzzle Solution 2 - Knight

marunweem lake chess puzzle location 2 in hogwarts legacy
  • Go northeast to find a chair.
  • Transform it into a Knight chess piece.
  • Move it to A3 or D2 to end the match.

Treasure Vault #11

marunweem lake treasure vault location 11 in hogwarts legacy

For the final vault, travel to the Marunweem Floo Flame and head southwest. The entrance is a round gate with a watching eye. Similar to the chest with eyes in Hogwarts Legacy, use the Disillusionment spell and approach the gate carefully to open it and get the treasure.

Hogwarts Legacy is available now on PS5, Xbox Series S/X, and PC. PS4, Xbox One, and Switch versions are currently in development.