Here's our logo, the W pentomino, subdivided into its 5 component squares. This diagram consists of 16 unit-length lines.
Your challenge: Trace the entire pattern with a single continuous path, never lifting the pencil from the paper, and do it in only 9 moves. A move is a line of any length in a single direction. When you turn a corner, that's a new move. Lines may intersect but never retrace the same segment. See the classic example at right, traceable in one continuous path of 8 moves.
Bonus question: Why is 9 the minimum number of moves possible for the W?
Your challenge: Trace the entire pattern with a single continuous path, never lifting the pencil from the paper, and do it in only 9 moves. A move is a line of any length in a single direction. When you turn a corner, that's a new move. Lines may intersect but never retrace the same segment. See the classic example at right, traceable in one continuous path of 8 moves.