[Computer-go] Frisbee Go Simulation

[Darren Cook]

> If one or two of these cells are outside the board the
> move will count as a pass. If the landing cell is occupied by another
> stone the move is also counted as a pass. Illegal moves are also counted
> as pass moves. 

Alternatively, the probability could be adjusted for the number of legal
moves.  (E.g. taking the easy example of (1,1) on an empty board,and eps
of 0.2, you'd adjust (1,1), (2,1) and (1,2) to each be 1/3 probability).

This does away with the involuntary pass concept. (But if you keep it, I
agree with John Tromp that it is just a wasted move, not able to cause
early game termination.)

Darren