Dead Ends

a dead end is ok. back up and keep trying.

a hand-drawn maze with counted dead ends: draw from start to end without crossing a line, backing out of each dead end you meet

From Daniel Fabe Schmidt's book Maze Structure: a dead end is not a mistake, it is one wrong way you no longer have to try. Each level says how many it has; back out of each one you meet and the maze gets smaller.

Concepts: mazes, graphs, puzzles.

An interactive you play with one thumb, on Wundr.