A Chase Sequence is an action sequence that starts when one party runs and the other party chases them, for whatever reason. It is essentially a series of contested tasks.
These are Move tasks - not Dexterity tasks.
Both parties roll, and the XP rolls the Difficulty Dice for terrain and conditions.
- If the runner's roll exceeds the chaser's roll, the chase continues, and the runner adds the Diff to his next roll. Divide the Diff by the Chaser's roll: if that number is higher than one, that is the number of successive victories (higher rolls) the Chaser needs before he can overtake the Runner.
- If the chaser's roll exceeds the runner's roll by more than the runner's Inherent Defense (his core dice) the Chaser has overtaken the Runner (or closed the gap in case of the high Differential mentioned above).
- If the Chaser's roll exceeds the Runner's roll by less than the inherent defense, the chase continues, but the Chaser can add the Diff to the next roll.
- If the terrain/conditions DD roll exceeds either the Chasers or the Runner's roll, that party has stumbled, and they come to a stop! Hopefully, the result of this will be fairly obvious to imagine.
You can also run this by feet/second, that's reasonably easy to figure out, but it's time consuming, and unlikely to change the actual outcome.
A Chase Sequence continues, naturally, until the Chaser either catches the Runner, or gives up.
Chase Sequence Difficulties