Unlockable block hypothesis proposes rope-and-roller mechanism through channels. Danish independent researcher Mikkel Christiansen first proposed the unlockable block hypothesis 14–15 years ago on a blog called "My Keops Pyramid Theory" The mechanism involves a granite plug block, a wooden roller, ropes, and the two King's Chamber channels A rope runs from the pyramid's northern face through the northern channel, wraps around a wooden log in the King's Chamber, and continues through the southern channel to the southern face

Danish researcher Mikkel Christiansen proposed the unlockable block hypothesis 14-15 years ago on his blog. The system uses a granite plug, wooden roller, and a rope running through both King's Chamber channels. Pulling the southern end turns the roller and draws the plug inward. A major flaw: no clear way to close it again.

Key Facts

  • Danish independent researcher Mikkel Christiansen first proposed the unlockable block hypothesis 14–15 years ago on a blog called "My Keops Pyramid Theory"
  • The mechanism involves a granite plug block, a wooden roller, ropes, and the two King's Chamber channels
  • A rope runs from the pyramid's northern face through the northern channel, wraps around a wooden log in the King's Chamber, and continues through the southern channel to the southern face
  • Pulling the southern rope from outside turns the roller and draws the plug block into the chamber, opening access
  • The horizontal channel exits reduce friction on the rope, and the rounded bottom corners of the northern channel support this
  • A major flaw is that the mechanism can open the chamber but has no clear means of closing it

Related site: The Great Pyramid of Giza — view location, images, and history on the Ancient Nerds map.