To get to the puzzle location, you will need to jump down the hole and slide to the bottom, where you can find a floating orb that you will need to pick up and walk on the tile in the center to open the door. Where the puzzle room is, you can also find the challenge right in the middle.
Your mission is to collect 40 particles in less than 300 seconds to complete the challenge. These can be seen in the room, and you can start collecting them from the nearest wall. Pick up the ones closest to you first by changing direction.
When you get them, you will have to go to the elevator to reach the top and press the button. This will trigger a cutscene, and you'll be all set.
There is no more to know about how to solve the Northwest Locked Pyramid Castle Sumeru puzzle in Genshin Impact, so now that we are done, we hope we have been very helpful, and we hope that you will be able to complete this puzzle quickly.