I know we had this conversation recently, but I just can't seem to get
my head around writing a ladder reader. What, exactly, does the ladder
reader do?
Our approach was to read out ladders involving the last stone played.
In the playout (beyond the tree), if the attacker can capture by
continuing a ladder, the attacker plays that move. If the defender can
escape by running, the defender plays that move. Otherwise, a random
move is played.
The trouble seems to be that, once the attacker plays, there's nothing
more for the ladder reader to say. At this point, it's 50-50 whether
the attacker or defender will play on the defender's last liberty.
Thus, the ladder reader doesn't give any pressure to stop running when
caught in a ladder.
What am I missing?
Peter Drake
http://www.lclark.edu/~drake/
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