The Duskwood Waterside Ruins puzzle in Crimson Desert looks like a checkerboard at first glance, but it's actually modeled after the ancient board game Go. That distinction matters, because the solution only makes sense once you understand what you're looking at: a grid of black and white stones where your goal is to complete a row of five whites. The catch? One of those "stones" is alive and will scurry off the moment you touch it.
Where is the Duskwood Waterside Ruins location?
The ruins sit in the Duskwood, west of Hernand Castle and just northwest of Kilnden Workshop (the same place you pick up the Kuku Iron Pot during the main story). It's close to the lower river and the Duskwood Abyss Nexus. On your map, it shows up as a Mysterious Energy point, marked with a question mark in the fog of war.
How do you solve the Duskwood Waterside Ruins puzzle?
The objective is to place a white stone in the correct empty spot to form a straight line of five white stones on the Go board. Simple enough in theory, but the game throws one wrinkle at you.
Ruins location in Duskwood
Step 1: Deal with the Mossback Crab
Look at the board and identify the mossy stone sitting in the gap between four white stones. That's not a stone at all. It's a Mossback Crab, and it's occupying exactly the spot you need.
Nudge it, kick it, or hit it with a ranged attack to send it scurrying away. Using a ranged weapon is the safer option here. Melee attacks can accidentally displace nearby white stones, which means you'd need to reposition them before completing the puzzle.
Aim your ranged attack directly at the Mossback Crab rather than swinging with a melee combo. The surrounding white stones are easy to knock out of alignment, and repositioning them adds unnecessary time to an otherwise quick puzzle.
Spot the Mossback Crab
Step 2: Pick up a white stone
Once the crab clears out, pick up any white stone from the board. The key rule: don't take one that's already part of the five-stone row you're building. Grab a stone from elsewhere on the grid that isn't contributing to your target line.
Step 3: Place the stone and complete the row
Carry that white stone over to the empty spot left by the Mossback Crab and set it down. That fills the gap, completing a straight line of five white stones. The puzzle registers as solved almost immediately.
Double-check which stone you're picking up before you grab it. Taking one from your intended row of five will break the sequence and force you to start the placement process over.
Duskwood Waterside Ruins Puzzle Rewards
After completing the puzzle, the Abyss Cresset activates. Interact with it to collect an Abyss Artifact, which you can spend to unlock abilities and boost Kliff's attributes. As a bonus, the Abyss Cresset also becomes a fast travel point, saving you the walk back through the Duskwood on future visits.
There are 37 Ancient Ruins puzzles total across the world of Pywel, each tied to an Abyss Cresset. Completing them all is one of the more rewarding ways to build out Kliff's skill set without grinding combat.
Why does this puzzle trip people up?
Two reasons. First, the board genuinely looks like a checkers grid, and most players try to apply checkers logic to it. Go works differently: the goal is territory and line formation, not jumping pieces. Second, the Mossback Crab is a legitimately good disguise. The crab sits perfectly still among identically sized stones, and nothing in the game's UI flags it as a living creature until you get close or hit it.
After testing this puzzle across multiple runs, the fastest method is always the ranged approach: shoot the crab from a distance, pick up a non-essential white stone, place it in the vacated spot. The whole thing takes under 30 seconds once you know what you're doing.
For more Crimson Desert puzzle walkthroughs and exploration guides, browse more guides on GAMES.GG to keep your Abyss Artifact collection growing.