Removed x & y from territory. They're ugly and make reading harder.
drives me nuts that I don't do this first. esc = quit
some bullshit tests as I try to figure out this stuff.
minor cleanup
Finished challenge 1: roll die to determine outcome.

Defined (roll n m).
Extended execute to take the die count on both src and dst.
Extended game-tree to roll the dice and determine outcome.

I fought and fought this one. Nowhere made sense to put the code. I
think this is the right way to do it. But I'm open to suggestion.