On the Subject of Literal Maze

Because you should know where walls are NOT present.

The module shows a 4×4 grid of letters. Each letter corresponds to a configuration of walls.

Deduce the wall configurations in such a way that:

• Same letters correspond to same wall configurations.
• Different letters correspond to different wall configurations.
• There is a wall around the outer edge.
• Adjacent cells agree on whether there is a wall between them or not.
• The resulting structure is a maze in which every location is reachable from every other (no isolated regions).
• At least one cell has the wall configuration shown at the top of the module.

Once the maze structure is deduced, enter the maze as follows:

• Determine which letter corresponds to the wall configuration shown at the top of the module.
• Tap any of the cells with that letter.
• Repeat this process until the entire maze is revealed.

Letters: Reset Walls

How To Use The Interactive

• Type the 16 letters on the module into the textbox to make them appear on the maze.
• Clicking a wall will toggle it between "unknown", "true", and "false" states.
  • "Unknown" walls appear dashed. They indicate you haven't deduced whether or not they are walls.
  • "True" walls mean that a wall must be PRESENT.
  • "False" walls mean that a wall must be ABSENT (this might be relevant in some scenarios).
• Pressing "Reset Walls" will reset all of the walls to their unknown states.