This Polygon guide explains how to solve the "4166 1899" puzzle found near the red tower in the video game Big Walk, where players discover a red gourd-shaped item locked in a box beneath a sign displaying the numbers 4166 and 1899. These figures are not random but coordinates on the game's map, requiring players to travel across the island to a specific rock formation to find a hidden button that unlocks the box.

The guide recommends completing the red tower first to unlock an in-game map, then using tools such as walkie-talkies and an optional GPS device to navigate to the coordinates and coordinate with teammates. The button itself is located on a rock near a hill, south of a separate puzzle involving counting faces on monitors, and must be held down continuously while a partner retrieves the gourd from the box before it closes again.