Tom used to be a lawyer. Now he's a game designer. The two have more in common than you think.
The Case Study: Revised Print & Play and Example
Following up on the idea of tracking the players’ movement, I’ve added a page to the print-and-play file with markers for the trail. There are a lot of markers there, probably more than are needed. Don’t feel obliged to cut them all out!
I also thought the tracking rules might be hard to understand just from the text. Thus, I took some photos of how they’re meant to play out in practice.
The player starts here.The player moves out of the first square; the marker shows the direction in which the player moved.The player keeps moving, the markers keep tracking.As the player turns, the trail turns as well.The trail always turns to follow the player.The searcher approaches, facing in direction 3–to the left.The searcher encounters the trail and turns to face in the direction it indicates.As the searcher moves, it encounters the trail marker pointing in a different direction. It turns to face in the new direction.If the trail looks like this . . . .The searcher moves forward, hits three markers at the same time, and relies on the one “topmost” and closest to the center–the one at (5,3). It turns right, the direction of that marker.
Sorry about the iffy pictures, but I hope they’re helpful!
The Law of Game Design 